CA2776606A1 - Screen basket vortex breaker for vessel - Google Patents
Screen basket vortex breaker for vessel Download PDFInfo
- Publication number
- CA2776606A1 CA2776606A1 CA2776606A CA2776606A CA2776606A1 CA 2776606 A1 CA2776606 A1 CA 2776606A1 CA 2776606 A CA2776606 A CA 2776606A CA 2776606 A CA2776606 A CA 2776606A CA 2776606 A1 CA2776606 A1 CA 2776606A1
- Authority
- CA
- Canada
- Prior art keywords
- vanes
- screen
- outlet
- basket
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
- F17C7/02—Discharging liquefied gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D2020/0065—Details, e.g. particular heat storage tanks, auxiliary members within tanks
- F28D2020/0069—Distributing arrangements; Fluid deflecting means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/794—With means for separating solid material from the fluid
- Y10T137/8122—Planar strainer normal to flow path
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86348—Tank with internally extending flow guide, pipe or conduit
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87265—Dividing into parallel flow paths with recombining
Abstract
A vortex breaker fits over an outlet of a vessel. The breaker has a basket disposed on a base with an opening communicating with the vessel's outlet. The basket has a cylindrical sidewall screen with profiled wires arranged around bars that extend from the base. The basket also has a top screen attached to the sidewall screen. The top screen has wires arranged across a plurality of bars. Fluid flow passing through the screens is directed by the profiled wires and the bars. Below the top screen, a baffle plate diverts the fluid flow passing through the top screen to the periphery of the top plate. Inside the basket, a flow modifier has a vanes attached to the base and disposed radially around the base's opening. At least some of the vanes have cross-tees extending from the vane's sides to break the radially directed flow inside the basket.
Description
2
3 FIELD
4 Embodiments disclosed herein relate to apparatus for minimizing vortex flow at an outlet of a vessel, and particularly, to apparatus comprising a 6 screen basket having flow modifiers.
9 Fluids exiting a vessel tend to swirl and form a vortex, and it is often desirable to minimize the vortex or swirling flow in the exiting fluid. This is 11 particularly true for liquefied natural gas (LNG) and other similar fluids.
One way to 12 reduce vortex and swirling flow is to use a breaker at the outlet of the vessel. For 13 example, a vessel 10 illustrated in Figs. 1A-1C has a basic vaned vortex breaker 30 14 to reduce vortex and swirling flow in the vessel's outlet 14. As shown, the breaker 30 has vanes 32 welded to the interior of the vessel's wall 12 over the outlet 14.
16 Here, the breaker 30 has four vanes 32 made from two side plates welded to a 17 lager central plate. As the fluid 20 in the vessel 10 flows toward the outlet 14, the 18 flow 22 naturally tends to swirl and form a vortex. However, the vortex breaker 30 19 over the outlet's mouth 16 is intended to break this tendency and to reduce its ill effects.
21 Another vortex breaker 40 illustrated in Figs. 2A-2D fits over a vessel's 22 outlet 14 to reduce the tendency of vortex and swirling flow in the fluid exiting the 23 vessel 10. This type of vortex breaker 40 is similar to that manufactured by 1 Johnson Screen - a Weatherford company. The breaker 40 has a screen basket 2 41 that fits over several vanes 50. The screen basket 41 has a flat top 42, a 3 cylindrical sidewall 44, a bottom 46, and an outlet insert 48. Both the flat top 42 and 4 cylindrical sidewall 44 are composed of wire screens that have wedged-shaped or profiled wires commonly used in the fluid industry, such as the VEE-WIRES
6 available from Johnson Screens. (VEE-WIRE is a registered trademark of 7 Weatherford/Lamb, Inc.). As best shown in Fig. 2D, the vanes 50 fit around a 8 central opening 47 in the breaker's bottom 46, and inner and outer rings 52 and 54 9 can support the upper corners of the vanes 50. This vortex breaker 40 use a baffle plate under the top screen 42.
11 The basic vaned vortex breaker 30 of Figs. IA-IC and the screen 12 breaker 40 of Fig. 2A-2D may be ineffective in some implementations. For 13 example, the basic vaned vortex breaker 30 of Figs. 1A-IC can be ineffective in 14 LNG applications because properties of LNG tend to produce turbulent flow and/or small vortexes beyond the breaker's vanes 32, producing ill effects in the outlet 14.
16 In addition, the screen basket breaker 40 with internal vanes 50 of 17 Figs. 2A-2D must typically have a significantly large size in comparison to the mouth 18 16 of the outlet 14 to be effective in breaking vortex flow. In some installations, for 19 example, the breaker 40 may need to have a diameter that is about 4 to 5 times the diameter of the outlet's mouth 16, although the actual size may further depend on 21 the fluid type, flow rates, and other variables. The required larger size for the 22 breaker 40 limits its effectiveness in various sized vessels and even limits its use in 23 some situations altogether.
1 What is needed is a vortex breaker that is more effective for LNG and 2 other types of fluids and that can have a smaller size than conventionally possible.
Embodiments of a vortex breaker fits over an outlet of a vessel. The 6 breaker comprises a basket having a sidewall screen disposed on a base and a top 7 screen. The base further comprises an opening for communicating with the outlet 8 of the vessel. Fluids can enter into the vessel by passing through the top and 9 sidewall screens of the basket. A flow modifier disposed within the basket breaks the radially directed flow the basket.
11 In a broad aspect, a vortex prevention apparatus comprises a screen 12 basket disposed on a vessel for enclosing an outlet of the vessel, and a flow 13 modifier disposed within the basket adjacent the outlet. The flow modifier can 14 include at least a plurality of vanes disposed radially around the outlet, at least some of the vanes having cross-tees extending from sides of the vanes.
16 In another broad aspect, a vortex prevention apparatus comprises a 17 base disposed on a vessel adjacent an outlet and having an opening 18 communicating with the outlet, a basket disposed on the base, and a flow modifier 19 disposed within the basket. The basket includes at least a sidewall screen having a plurality of first wires arranged around a plurality of first bars extending from the 21 base, and a top screen disposed on the sidewall screen and having a plurality of 22 second wires arranged across a plurality of second bars. The flow modifier includes 23 at least a plurality of vanes extending from the base and disposed radially around 1 the opening in the base, at least some of the vanes having cross-tees extending 2 from sides of the vanes.
3 In another broad aspect, a vortex prevention apparatus comprises 4 means for screening fluid flow from inside a vessel to an outlet, means for radially directing the screened fluid flow to the outlet, and means for perpendicularly 6 breaking at least some of the radially directed fluid flow.
7 In another broad aspect, a vessel comprises a shell defining a hollow 8 and having an outlet, a screen basket disposed in the hollow of the shell and 9 enclosing the outlet, and a flow modifier disposed within the basket, the flow modifier at least including a plurality of vanes disposed radially around the outlet, at 11 least some of the vanes having cross-tees extending from sides of the vanes.
14 Fig. 1A shows a horizontal vessel having a vortex breaker according to the prior art;
16 Figs. 1 B-1 C show side and top view of the vortex breaker of FIG. 1 A;
17 Fig. 2A shows a vertical vessel having another vortex breaker 18 according to the prior art;
19 Figs. 2B-2D show front, side, and detailed perspective views of the vortex breaker of Fig. 2A;
21 Figs. 3A-3B show top and side views of a vortex breaker according to 22 the present disclosure;
1 Figs. 4A-4B show top and side views of exposed portions of the vortex 2 breaker of Figs. 3A-3B revealing additional components;
3 Fig. 5A shows a top view of another vortex breaker according to the 4 present disclosure;
Fig. 5B shows a side view with partial cutaway of the vortex breaker of 6 Fig.5A;
7 Fig. 5C shows an end view with partial cutaway of the vortex breaker 8 of Fig. 5A;
9 Fig. 6 shows the base of the vortex breaker as unassembled;
Figs. 7A-7B show a top view and side cross-section of the vortex 11 breaker's outlet insert;
12 Fig. 8 shows a quarter panel of the vortex breaker's sidewall;
13 Figs. 9A-9B show cross-sections of the vortex breaker's top screen, 14 banding, and other components; and Fig. 10 shows an exposed top view of the vortex breaker of Fig. 5A
16 revealing the flow modifier therein.
19 A vortex breaker fits over a vessel's outlet. The breaker has a wire basket with a sidewall screen and a top screen. The sidewall screen is disposed on 21 a base, and the base has an opening communicating with the vessel's outlet.
The 22 basket's sidewall screen has a cylindrical shape with profiled wires horizontally 23 arranged around bars that extend vertically from the base. The basket's top screen
9 Fluids exiting a vessel tend to swirl and form a vortex, and it is often desirable to minimize the vortex or swirling flow in the exiting fluid. This is 11 particularly true for liquefied natural gas (LNG) and other similar fluids.
One way to 12 reduce vortex and swirling flow is to use a breaker at the outlet of the vessel. For 13 example, a vessel 10 illustrated in Figs. 1A-1C has a basic vaned vortex breaker 30 14 to reduce vortex and swirling flow in the vessel's outlet 14. As shown, the breaker 30 has vanes 32 welded to the interior of the vessel's wall 12 over the outlet 14.
16 Here, the breaker 30 has four vanes 32 made from two side plates welded to a 17 lager central plate. As the fluid 20 in the vessel 10 flows toward the outlet 14, the 18 flow 22 naturally tends to swirl and form a vortex. However, the vortex breaker 30 19 over the outlet's mouth 16 is intended to break this tendency and to reduce its ill effects.
21 Another vortex breaker 40 illustrated in Figs. 2A-2D fits over a vessel's 22 outlet 14 to reduce the tendency of vortex and swirling flow in the fluid exiting the 23 vessel 10. This type of vortex breaker 40 is similar to that manufactured by 1 Johnson Screen - a Weatherford company. The breaker 40 has a screen basket 2 41 that fits over several vanes 50. The screen basket 41 has a flat top 42, a 3 cylindrical sidewall 44, a bottom 46, and an outlet insert 48. Both the flat top 42 and 4 cylindrical sidewall 44 are composed of wire screens that have wedged-shaped or profiled wires commonly used in the fluid industry, such as the VEE-WIRES
6 available from Johnson Screens. (VEE-WIRE is a registered trademark of 7 Weatherford/Lamb, Inc.). As best shown in Fig. 2D, the vanes 50 fit around a 8 central opening 47 in the breaker's bottom 46, and inner and outer rings 52 and 54 9 can support the upper corners of the vanes 50. This vortex breaker 40 use a baffle plate under the top screen 42.
11 The basic vaned vortex breaker 30 of Figs. IA-IC and the screen 12 breaker 40 of Fig. 2A-2D may be ineffective in some implementations. For 13 example, the basic vaned vortex breaker 30 of Figs. 1A-IC can be ineffective in 14 LNG applications because properties of LNG tend to produce turbulent flow and/or small vortexes beyond the breaker's vanes 32, producing ill effects in the outlet 14.
16 In addition, the screen basket breaker 40 with internal vanes 50 of 17 Figs. 2A-2D must typically have a significantly large size in comparison to the mouth 18 16 of the outlet 14 to be effective in breaking vortex flow. In some installations, for 19 example, the breaker 40 may need to have a diameter that is about 4 to 5 times the diameter of the outlet's mouth 16, although the actual size may further depend on 21 the fluid type, flow rates, and other variables. The required larger size for the 22 breaker 40 limits its effectiveness in various sized vessels and even limits its use in 23 some situations altogether.
1 What is needed is a vortex breaker that is more effective for LNG and 2 other types of fluids and that can have a smaller size than conventionally possible.
Embodiments of a vortex breaker fits over an outlet of a vessel. The 6 breaker comprises a basket having a sidewall screen disposed on a base and a top 7 screen. The base further comprises an opening for communicating with the outlet 8 of the vessel. Fluids can enter into the vessel by passing through the top and 9 sidewall screens of the basket. A flow modifier disposed within the basket breaks the radially directed flow the basket.
11 In a broad aspect, a vortex prevention apparatus comprises a screen 12 basket disposed on a vessel for enclosing an outlet of the vessel, and a flow 13 modifier disposed within the basket adjacent the outlet. The flow modifier can 14 include at least a plurality of vanes disposed radially around the outlet, at least some of the vanes having cross-tees extending from sides of the vanes.
16 In another broad aspect, a vortex prevention apparatus comprises a 17 base disposed on a vessel adjacent an outlet and having an opening 18 communicating with the outlet, a basket disposed on the base, and a flow modifier 19 disposed within the basket. The basket includes at least a sidewall screen having a plurality of first wires arranged around a plurality of first bars extending from the 21 base, and a top screen disposed on the sidewall screen and having a plurality of 22 second wires arranged across a plurality of second bars. The flow modifier includes 23 at least a plurality of vanes extending from the base and disposed radially around 1 the opening in the base, at least some of the vanes having cross-tees extending 2 from sides of the vanes.
3 In another broad aspect, a vortex prevention apparatus comprises 4 means for screening fluid flow from inside a vessel to an outlet, means for radially directing the screened fluid flow to the outlet, and means for perpendicularly 6 breaking at least some of the radially directed fluid flow.
7 In another broad aspect, a vessel comprises a shell defining a hollow 8 and having an outlet, a screen basket disposed in the hollow of the shell and 9 enclosing the outlet, and a flow modifier disposed within the basket, the flow modifier at least including a plurality of vanes disposed radially around the outlet, at 11 least some of the vanes having cross-tees extending from sides of the vanes.
14 Fig. 1A shows a horizontal vessel having a vortex breaker according to the prior art;
16 Figs. 1 B-1 C show side and top view of the vortex breaker of FIG. 1 A;
17 Fig. 2A shows a vertical vessel having another vortex breaker 18 according to the prior art;
19 Figs. 2B-2D show front, side, and detailed perspective views of the vortex breaker of Fig. 2A;
21 Figs. 3A-3B show top and side views of a vortex breaker according to 22 the present disclosure;
1 Figs. 4A-4B show top and side views of exposed portions of the vortex 2 breaker of Figs. 3A-3B revealing additional components;
3 Fig. 5A shows a top view of another vortex breaker according to the 4 present disclosure;
Fig. 5B shows a side view with partial cutaway of the vortex breaker of 6 Fig.5A;
7 Fig. 5C shows an end view with partial cutaway of the vortex breaker 8 of Fig. 5A;
9 Fig. 6 shows the base of the vortex breaker as unassembled;
Figs. 7A-7B show a top view and side cross-section of the vortex 11 breaker's outlet insert;
12 Fig. 8 shows a quarter panel of the vortex breaker's sidewall;
13 Figs. 9A-9B show cross-sections of the vortex breaker's top screen, 14 banding, and other components; and Fig. 10 shows an exposed top view of the vortex breaker of Fig. 5A
16 revealing the flow modifier therein.
19 A vortex breaker fits over a vessel's outlet. The breaker has a wire basket with a sidewall screen and a top screen. The sidewall screen is disposed on 21 a base, and the base has an opening communicating with the vessel's outlet.
The 22 basket's sidewall screen has a cylindrical shape with profiled wires horizontally 23 arranged around bars that extend vertically from the base. The basket's top screen
5 1 is attached to the sidewall screen and has a flat, disc shape. As with the sidewall 2 screen, the top screen has wires arranged perpendicularly across a plurality of bars.
3 In an alternative, the basket's sidewall screen can have a cylindrical shape with 4 profiled wires vertically arranged around bars that extend horizontally.
In use, fluid passing through the top and sidewall screens is directed
3 In an alternative, the basket's sidewall screen can have a cylindrical shape with 4 profiled wires vertically arranged around bars that extend horizontally.
In use, fluid passing through the top and sidewall screens is directed
6 by the profiled wires and the bars into the basket. Below the top screen, a baffle
7 plate diverts the fluid passing through the top screen to the periphery of the top
8 plate adjacent the sidewall screen. Inside the basket, a flow modifier has vanes
9 attached to the base and disposed radially around the opening in the base.
At least some of these vanes have cross-tees extending from the vane's sides to break the 11 radially directed flow in the basket. Preferably, first planar vanes and second cross-12 teed vanes are arranged symmetrically and alternating around the central opening 13 in the base.
14 Turning to the drawings, a vortex breaker 100 illustrated in Figs. 3A-3B installs over the outlet of a vessel (not shown), which can be vertical or 16 horizontal. The breaker 100 has a screen basket 110 having a top screen 120 and 17 a sidewall screen 140. The top screen 120 is disc shaped and positions atop the 18 sidewall screen 140. A banding 130 and a rim 135 surround the top screen 120 and 19 attach it to the sidewall screen 140. For its part, the sidewall screen 140 is cylindrically shaped and is supported on a base 150. An outlet insert 155 extends 21 from the base 150 for positioning in a vessel's outlet (e.g., 12; Figs. 1A
or 2A).
22 Both the top and sidewall screens 120 can be constructed from 23 several modular screen components coupled together. For example, the top 1 screen 120 can be formed from two or more panels coupled together. In a similar 2 fashion, the sidewall screen 140 can be formed from several screen panels or 3 quadrants that couple together to form the screen's cylindrical shape.
Because the 4 vessel in which the basket 110 may position may have a curved inner sidewall, the screen 140's lower edges can be contoured to conform to the shape of the vessel.
6 In addition, the basket's base 150 can be shaped to fit against the vessel's inner 7 wall.
8 As best shown in Fig. 4A, the sidewall screen 140 has a plurality of 9 horizontally oriented wires 142 attached to and wrapped around a plurality of vertically oriented rods or bars 144. These wires 142 are wedge-shaped or profiled 11 wires, such as VEE-WIRES known and used in the art for various purposes.
The 12 bars 144 weld or attached to the base 150, and the wires 142 weld to the bars 144 13 using techniques known in the art. The wires 142 may have their wider sides 14 disposed outwardly around the circumference of the sidewall screen 140 and may have their thinner sides welded to the bars 144. In this way, the wires 142 define 16 gaps or slots between them that form an initial barrier for fluid flow to the vessel's 17 outlet.
18 As also best shown in Fig. 4A, the top screen 120 is similarly 19 constructed of a plurality of wires 122 that weld to perpendicularly arranged bars 124 in a similar fashion. These bars 124 connect at their ends to the surrounding 21 banding 130. In turn, the banding 130 attaches to the rim 135 that affixes atop the 22 cylindrical sidewall screen 140.
1 A baffle plate 162 positions below the top screen 120, and its 2 peripheral edge almost extends to the surrounding sidewall screen 140. The baffle 3 plate 162 may be set directly underneath and optionally attached to the top screen's 4 bars 124. Alternatively, a gap or space can be provided between the baffle plate 162 and bars 124. In any event, being under the screen's wires 122 and rods 125, 6 the baffle plate 162 diverts flow passing through the top screen 120 to the plate's 7 peripheral edge. From this peripheral edge, the diverted flow can then be directed 8 inside the basket 110 to the outlet insert 155.
9 In addition to the screen basket 110, the breaker 100 has a flow modifier 160 positioned within the basket 110, as shown in detail in Figs. 4A-4B.
11 The flow modifier 160 positions on the base 150 inside the basket 110 and includes 12 first and second vanes 170/180 radially oriented from the center of the basket 110.
13 These vanes 170/180 can be attached or welded to the surface of the base 14 using techniques known in the art. As best shown in Fig. 4B, the first and second vanes 170 and 180 of the flow modifier 160 are alternatingly and symmetrically 16 arranged around the base's central opening 152.
17 The first vanes 170 include planar, solid plates oriented radially from 18 the base's central opening 152. The second vanes 180 also include planar, solid 19 plates but have cross-tees 182 positioned perpendicularly thereto. These cross-tees 182 are intended to break radially directed flow. The locations and sizes of 21 these cross-tees 182 depend on the fluid type, flow velocity, flow characteristics, 22 number of vanes, size of the breaker, and other variables evident to those skilled in 23 the art.
1 In use, the basket's wire screens 120/140 act as an initial barrier to 2 fluid flow into the breaker 100 and operate to break the tendency of the flow to form 3 vortices and swirls as the fluid passes through the screens 120/140 to the outlet 4 insert 155 disposed in the vessel's outlet. The lengthwise bars 124/144 running perpendicular to the wires 122/142 on the inside of the basket 110 also act to 6 control the flow into the basket 110. Internally, the vanes 170/180 of the flow 7 modifier 160 help radially direct flow in the basket 110 toward the outlet insert 155, 8 and the cross-tees 182 break the radially directed flow in a way that enables the 9 entire breaker 100 to be reduced in overall size. As noted previously, prior art breakers may need a diameter that is about 4 to 5 times the outlet's diameter.
The 11 breaker 100 can be about 1.5 to 3 times the outlet's diameter, although the value 12 depends on the outlet size, flow rate and height of fluid in the vessel during service.
13 The breaker 100 preferably prevents vortices with a minimum effect 14 on flow-through resistance or pressure drop. Together, the combination of flow modifier 160 and screen basket 110 create a pressure and streamline pattern that 16 prevent the formation of vortices. Moreover, the screen basket 110 and flow 17 modifier 160 combination can effectively reduce vortices while requiring a smaller 18 sized basket than conventionally used.
19 Another vortex breaker 200 illustrated in Figs. 5A-5C is similar to the previously described breaker. The breaker 200 has a basket 210 with a top screen 21 220, a banding 230, a sidewall screen 240, a bottom plate 250, and an outlet insert 22 255. Hold down clips 245 attached around the sides of the breaker 200 connect to 23 tabs (not shown) welded to the inside of a vessel to hold the basket 210 therein.
1 The breaker's top screen 220 is surrounded by the banding 230 that 2 attaches the stop screen 220 to the sidewall screen 240. The top screen 220 has 3 wires 222 welded to perpendicularly oriented bars 224 that run across the top 4 screen 220. Below the top screen 220, a baffle plate 262 positions underneath the top bars 224, which can be welded thereto, and covers most of the top screen 6 except for the outer periphery near the banding 230.
7 The sidewall screen 240 of the basket 210 has horizontally oriented 8 wires 242 wrapped around and welded to vertically oriented bars 244. These bars 9 244 extend from the base 250 and can be welded or affixed thereto in ways known in the art. The outlet insert 255 is a cylindrical tube extending from a central 11 opening in this base 250 for passage of fluid out of the basket 210. As an alternative 12 to the present arrangement of wires 242 and bars 244, the basket's sidewall screen 13 240 can have profiled wires 242 horizontally arranged around bars 244 that extend 14 vertically from the base.
As at least partially visible in Figs. 5A-5C, the basket 210 encloses a 16 flow modifier 260 having a plurality of vanes 270/280 disposed inside the breaker 17 200. The flow modifier's vanes 270/280 surround the central opening to the outlet 18 insert 255 and extend radially outward to the surrounding sidewall screen 240.
19 Some of the vanes 280' have cross-tees 282 to break the radially directed flow.
Further details of the flow modifier 260 are provided below.
21 This breaker 200 also has a modular construction. For example, the 22 screen basket 210 has first and second halves 212A-B that attach together at the 23 outlet of a vessel (not shown). For example, both the top screen 220 and the 1 banding 230 having semi-circular portions that connect together to form the disc 2 shape screen 220 and banding 230. As shown in Fig. 6, the base plate 250 is 3 made of separate components that attach together. These components include 4 central members 258 that connect together and form the plate's central opening 252. End members 256 attach on either side of these central members 258 and 6 can be bent upward to conform to the inside surface of the vessel.
7 As shown in Figs. 7A-7B, the outlet insert 255 is a separate cylindrical 8 component having lugs 257. The outlet insert 255 fits through the base plate's 9 central opening (252; Fig. 6) so it can extend below the base 250. The insert's lugs 257 attach to upward extending bolts (253; Fig. 6) welded to the base plate (250;
11 Fig. 6), although other attachment techniques could be used.
12 As shown in Fig. 8, the sidewall screen 240 of the breaker 200 can be 13 modular and can be composed of quarter panels 246. Each of the quarter panels 14 246 has a surrounding frame 248 to which ends of the vertically oriented bars 244 weld. Four such quarter panels 246 bolt end to end to form the cylindrical screen 16 210, and the lower edges of the frame 248 bolt to the periphery of the base plate 17 (250; Fig. 6).
18 As shown in Figs. 9A-9B, the banding 230 has a bolting flange 232 19 that bolts to the top edges of the quarter panel's frame (248; Fig. 8). As best shown in Fig. 9A, the top screen's half disc 220A has a joint flange 234 that bolts to the 21 other complementary half disc of the top screen. (See e.g., Fig. 5B). As visible in 22 Fig. 5C, the joint flanges 234 couple together near the vanes 280.
Therefore, these 23 vanes 280 near the flanges 234 can have a cutaway profile 284 along the top edge 1 to accommodate the shape of the joint flanges 234, but the cross-tees 282 may 2 extend upward beyond the flanges 234.
3 The vortex breaker 200 uses the flow modifier 260 and directs flow in 4 a similar manner to that discussed above with reference to Figs. 3A-4B. As best shown in the exposed top view of Fig. 10, the inside of the basket 210 has the flow 6 modifier 260 positioned on the base plate 250 around the central opening 252 7 communicating with the outlet. The flow modifier's vanes 270 and 280 are arranged 8 symmetrically and alternatingly around the base plate 250's central opening 252. In 9 the present example, there are twelve vanes 270/280 (six of each) that are arranged at every 30 degrees around the central opening 252, although other 11 arrangements can be used depending on the implementation.
12 The first vanes 270 include planar, solid walls oriented radially from 13 the central opening 252. These vanes 270 extend from the central opening 14 radially outward to a point almost to the vertically oriented bars 244 of the sidewall 240. The second vanes 280 also include planar, solid walls that are similarly 16 oriented radially from the central opening 252. These vanes 280 also extend from 17 the central opening 252 radially outward to a point almost to the vertically oriented 18 bars 244 of the sidewall 240.
19 The second vanes 280 also have cross-tees 282 positioned perpendicularly thereto. As shown, these cross-tees 282 may be positioned 21 relatively closer to the surrounding sidewall 240 as opposed to the central opening 22 252. Likewise, these cross-tees 282 can encompass half or less than half of the 23 distance d between the second vane 280 and the adjacent first vanes 270.
For 1 support, semicircular stabilizer bands 264 can attach to outer top corners of the 2 vanes 270/280 near the basket 210's periphery, and curved stabilizer bands 3 can attach to inner corners of the vanes 270 and 280 near the basket 210's center.
4 The size, placement, and shape of the vanes 270/280 and cross-tees 282 can be determined based on rules of thumb, equations, guidelines, and other 6 considerations available to one skilled in the art. To determine the expected shape 7 of the free flow vortex, for example, formulas can first be used for estimation, and 8 then computation fluid dynamic (CFD) models can be used. The breaker 200 is 9 then sized to be large enough to disrupt the shape of the vortex. Sizing ratios for the breaker 200 relative to the size of the vortex that have proven to be successful in 11 previous installations can then be used to finalize the size for the vortex breaker 12 200. These ratios can vary based on the nozzle size and vessel orientation 13 (horizontal or vertical vessels).
14 For further refinement, CFD models are used to determine the streamline pattern for the vessel geometry and nozzle configuration during expected 16 operation. The vortex breaker 200 is then added to the CFD model to determine its 17 effects on the streamlines. If the breaker 200 removes the turbulent or swirling 18 streamlines in the CFD model, then the current design of the breaker 200 may be 19 deemed acceptable. If the breaker 200 does not remove the turbulent or swirling streamlines, then the size, number, location and other general configuration 21 variables of the vanes, screen, and other components are altered until the desired 22 flow control effect is observed.
1 For illustrative dimensions, the basket 210 may have an overall 2 diameter Di of about 737-mm, and the central opening 252 for the outlet may have 3 a diameter D2 of about 251-mm. The planar portions of the vanes 270/280 may 4 have a length L1 of about 197-mm. The cross-tees 282 may have an expanse L2 of about 102-mm and may be positioned at a distance L3 about 133.5-mm from the 6 inner edge of the vanes 280. For additional illustration, the slot width between the 7 sidewall's wires (242; Figs. 5A-5C) may be about 6.35-mm, and the slot width 8 between the top screen's wires (222; Figs. 5A-5C) may be about 4.76-mm.
9 The foregoing description of preferred and other embodiments is not intended to limit or restrict the scope or applicability of the inventive concepts 11 conceived of by the Applicants. In exchange for disclosing the inventive concepts 12 contained herein, the Applicants desire all patent rights afforded by the appended 13 claims.
At least some of these vanes have cross-tees extending from the vane's sides to break the 11 radially directed flow in the basket. Preferably, first planar vanes and second cross-12 teed vanes are arranged symmetrically and alternating around the central opening 13 in the base.
14 Turning to the drawings, a vortex breaker 100 illustrated in Figs. 3A-3B installs over the outlet of a vessel (not shown), which can be vertical or 16 horizontal. The breaker 100 has a screen basket 110 having a top screen 120 and 17 a sidewall screen 140. The top screen 120 is disc shaped and positions atop the 18 sidewall screen 140. A banding 130 and a rim 135 surround the top screen 120 and 19 attach it to the sidewall screen 140. For its part, the sidewall screen 140 is cylindrically shaped and is supported on a base 150. An outlet insert 155 extends 21 from the base 150 for positioning in a vessel's outlet (e.g., 12; Figs. 1A
or 2A).
22 Both the top and sidewall screens 120 can be constructed from 23 several modular screen components coupled together. For example, the top 1 screen 120 can be formed from two or more panels coupled together. In a similar 2 fashion, the sidewall screen 140 can be formed from several screen panels or 3 quadrants that couple together to form the screen's cylindrical shape.
Because the 4 vessel in which the basket 110 may position may have a curved inner sidewall, the screen 140's lower edges can be contoured to conform to the shape of the vessel.
6 In addition, the basket's base 150 can be shaped to fit against the vessel's inner 7 wall.
8 As best shown in Fig. 4A, the sidewall screen 140 has a plurality of 9 horizontally oriented wires 142 attached to and wrapped around a plurality of vertically oriented rods or bars 144. These wires 142 are wedge-shaped or profiled 11 wires, such as VEE-WIRES known and used in the art for various purposes.
The 12 bars 144 weld or attached to the base 150, and the wires 142 weld to the bars 144 13 using techniques known in the art. The wires 142 may have their wider sides 14 disposed outwardly around the circumference of the sidewall screen 140 and may have their thinner sides welded to the bars 144. In this way, the wires 142 define 16 gaps or slots between them that form an initial barrier for fluid flow to the vessel's 17 outlet.
18 As also best shown in Fig. 4A, the top screen 120 is similarly 19 constructed of a plurality of wires 122 that weld to perpendicularly arranged bars 124 in a similar fashion. These bars 124 connect at their ends to the surrounding 21 banding 130. In turn, the banding 130 attaches to the rim 135 that affixes atop the 22 cylindrical sidewall screen 140.
1 A baffle plate 162 positions below the top screen 120, and its 2 peripheral edge almost extends to the surrounding sidewall screen 140. The baffle 3 plate 162 may be set directly underneath and optionally attached to the top screen's 4 bars 124. Alternatively, a gap or space can be provided between the baffle plate 162 and bars 124. In any event, being under the screen's wires 122 and rods 125, 6 the baffle plate 162 diverts flow passing through the top screen 120 to the plate's 7 peripheral edge. From this peripheral edge, the diverted flow can then be directed 8 inside the basket 110 to the outlet insert 155.
9 In addition to the screen basket 110, the breaker 100 has a flow modifier 160 positioned within the basket 110, as shown in detail in Figs. 4A-4B.
11 The flow modifier 160 positions on the base 150 inside the basket 110 and includes 12 first and second vanes 170/180 radially oriented from the center of the basket 110.
13 These vanes 170/180 can be attached or welded to the surface of the base 14 using techniques known in the art. As best shown in Fig. 4B, the first and second vanes 170 and 180 of the flow modifier 160 are alternatingly and symmetrically 16 arranged around the base's central opening 152.
17 The first vanes 170 include planar, solid plates oriented radially from 18 the base's central opening 152. The second vanes 180 also include planar, solid 19 plates but have cross-tees 182 positioned perpendicularly thereto. These cross-tees 182 are intended to break radially directed flow. The locations and sizes of 21 these cross-tees 182 depend on the fluid type, flow velocity, flow characteristics, 22 number of vanes, size of the breaker, and other variables evident to those skilled in 23 the art.
1 In use, the basket's wire screens 120/140 act as an initial barrier to 2 fluid flow into the breaker 100 and operate to break the tendency of the flow to form 3 vortices and swirls as the fluid passes through the screens 120/140 to the outlet 4 insert 155 disposed in the vessel's outlet. The lengthwise bars 124/144 running perpendicular to the wires 122/142 on the inside of the basket 110 also act to 6 control the flow into the basket 110. Internally, the vanes 170/180 of the flow 7 modifier 160 help radially direct flow in the basket 110 toward the outlet insert 155, 8 and the cross-tees 182 break the radially directed flow in a way that enables the 9 entire breaker 100 to be reduced in overall size. As noted previously, prior art breakers may need a diameter that is about 4 to 5 times the outlet's diameter.
The 11 breaker 100 can be about 1.5 to 3 times the outlet's diameter, although the value 12 depends on the outlet size, flow rate and height of fluid in the vessel during service.
13 The breaker 100 preferably prevents vortices with a minimum effect 14 on flow-through resistance or pressure drop. Together, the combination of flow modifier 160 and screen basket 110 create a pressure and streamline pattern that 16 prevent the formation of vortices. Moreover, the screen basket 110 and flow 17 modifier 160 combination can effectively reduce vortices while requiring a smaller 18 sized basket than conventionally used.
19 Another vortex breaker 200 illustrated in Figs. 5A-5C is similar to the previously described breaker. The breaker 200 has a basket 210 with a top screen 21 220, a banding 230, a sidewall screen 240, a bottom plate 250, and an outlet insert 22 255. Hold down clips 245 attached around the sides of the breaker 200 connect to 23 tabs (not shown) welded to the inside of a vessel to hold the basket 210 therein.
1 The breaker's top screen 220 is surrounded by the banding 230 that 2 attaches the stop screen 220 to the sidewall screen 240. The top screen 220 has 3 wires 222 welded to perpendicularly oriented bars 224 that run across the top 4 screen 220. Below the top screen 220, a baffle plate 262 positions underneath the top bars 224, which can be welded thereto, and covers most of the top screen 6 except for the outer periphery near the banding 230.
7 The sidewall screen 240 of the basket 210 has horizontally oriented 8 wires 242 wrapped around and welded to vertically oriented bars 244. These bars 9 244 extend from the base 250 and can be welded or affixed thereto in ways known in the art. The outlet insert 255 is a cylindrical tube extending from a central 11 opening in this base 250 for passage of fluid out of the basket 210. As an alternative 12 to the present arrangement of wires 242 and bars 244, the basket's sidewall screen 13 240 can have profiled wires 242 horizontally arranged around bars 244 that extend 14 vertically from the base.
As at least partially visible in Figs. 5A-5C, the basket 210 encloses a 16 flow modifier 260 having a plurality of vanes 270/280 disposed inside the breaker 17 200. The flow modifier's vanes 270/280 surround the central opening to the outlet 18 insert 255 and extend radially outward to the surrounding sidewall screen 240.
19 Some of the vanes 280' have cross-tees 282 to break the radially directed flow.
Further details of the flow modifier 260 are provided below.
21 This breaker 200 also has a modular construction. For example, the 22 screen basket 210 has first and second halves 212A-B that attach together at the 23 outlet of a vessel (not shown). For example, both the top screen 220 and the 1 banding 230 having semi-circular portions that connect together to form the disc 2 shape screen 220 and banding 230. As shown in Fig. 6, the base plate 250 is 3 made of separate components that attach together. These components include 4 central members 258 that connect together and form the plate's central opening 252. End members 256 attach on either side of these central members 258 and 6 can be bent upward to conform to the inside surface of the vessel.
7 As shown in Figs. 7A-7B, the outlet insert 255 is a separate cylindrical 8 component having lugs 257. The outlet insert 255 fits through the base plate's 9 central opening (252; Fig. 6) so it can extend below the base 250. The insert's lugs 257 attach to upward extending bolts (253; Fig. 6) welded to the base plate (250;
11 Fig. 6), although other attachment techniques could be used.
12 As shown in Fig. 8, the sidewall screen 240 of the breaker 200 can be 13 modular and can be composed of quarter panels 246. Each of the quarter panels 14 246 has a surrounding frame 248 to which ends of the vertically oriented bars 244 weld. Four such quarter panels 246 bolt end to end to form the cylindrical screen 16 210, and the lower edges of the frame 248 bolt to the periphery of the base plate 17 (250; Fig. 6).
18 As shown in Figs. 9A-9B, the banding 230 has a bolting flange 232 19 that bolts to the top edges of the quarter panel's frame (248; Fig. 8). As best shown in Fig. 9A, the top screen's half disc 220A has a joint flange 234 that bolts to the 21 other complementary half disc of the top screen. (See e.g., Fig. 5B). As visible in 22 Fig. 5C, the joint flanges 234 couple together near the vanes 280.
Therefore, these 23 vanes 280 near the flanges 234 can have a cutaway profile 284 along the top edge 1 to accommodate the shape of the joint flanges 234, but the cross-tees 282 may 2 extend upward beyond the flanges 234.
3 The vortex breaker 200 uses the flow modifier 260 and directs flow in 4 a similar manner to that discussed above with reference to Figs. 3A-4B. As best shown in the exposed top view of Fig. 10, the inside of the basket 210 has the flow 6 modifier 260 positioned on the base plate 250 around the central opening 252 7 communicating with the outlet. The flow modifier's vanes 270 and 280 are arranged 8 symmetrically and alternatingly around the base plate 250's central opening 252. In 9 the present example, there are twelve vanes 270/280 (six of each) that are arranged at every 30 degrees around the central opening 252, although other 11 arrangements can be used depending on the implementation.
12 The first vanes 270 include planar, solid walls oriented radially from 13 the central opening 252. These vanes 270 extend from the central opening 14 radially outward to a point almost to the vertically oriented bars 244 of the sidewall 240. The second vanes 280 also include planar, solid walls that are similarly 16 oriented radially from the central opening 252. These vanes 280 also extend from 17 the central opening 252 radially outward to a point almost to the vertically oriented 18 bars 244 of the sidewall 240.
19 The second vanes 280 also have cross-tees 282 positioned perpendicularly thereto. As shown, these cross-tees 282 may be positioned 21 relatively closer to the surrounding sidewall 240 as opposed to the central opening 22 252. Likewise, these cross-tees 282 can encompass half or less than half of the 23 distance d between the second vane 280 and the adjacent first vanes 270.
For 1 support, semicircular stabilizer bands 264 can attach to outer top corners of the 2 vanes 270/280 near the basket 210's periphery, and curved stabilizer bands 3 can attach to inner corners of the vanes 270 and 280 near the basket 210's center.
4 The size, placement, and shape of the vanes 270/280 and cross-tees 282 can be determined based on rules of thumb, equations, guidelines, and other 6 considerations available to one skilled in the art. To determine the expected shape 7 of the free flow vortex, for example, formulas can first be used for estimation, and 8 then computation fluid dynamic (CFD) models can be used. The breaker 200 is 9 then sized to be large enough to disrupt the shape of the vortex. Sizing ratios for the breaker 200 relative to the size of the vortex that have proven to be successful in 11 previous installations can then be used to finalize the size for the vortex breaker 12 200. These ratios can vary based on the nozzle size and vessel orientation 13 (horizontal or vertical vessels).
14 For further refinement, CFD models are used to determine the streamline pattern for the vessel geometry and nozzle configuration during expected 16 operation. The vortex breaker 200 is then added to the CFD model to determine its 17 effects on the streamlines. If the breaker 200 removes the turbulent or swirling 18 streamlines in the CFD model, then the current design of the breaker 200 may be 19 deemed acceptable. If the breaker 200 does not remove the turbulent or swirling streamlines, then the size, number, location and other general configuration 21 variables of the vanes, screen, and other components are altered until the desired 22 flow control effect is observed.
1 For illustrative dimensions, the basket 210 may have an overall 2 diameter Di of about 737-mm, and the central opening 252 for the outlet may have 3 a diameter D2 of about 251-mm. The planar portions of the vanes 270/280 may 4 have a length L1 of about 197-mm. The cross-tees 282 may have an expanse L2 of about 102-mm and may be positioned at a distance L3 about 133.5-mm from the 6 inner edge of the vanes 280. For additional illustration, the slot width between the 7 sidewall's wires (242; Figs. 5A-5C) may be about 6.35-mm, and the slot width 8 between the top screen's wires (222; Figs. 5A-5C) may be about 4.76-mm.
9 The foregoing description of preferred and other embodiments is not intended to limit or restrict the scope or applicability of the inventive concepts 11 conceived of by the Applicants. In exchange for disclosing the inventive concepts 12 contained herein, the Applicants desire all patent rights afforded by the appended 13 claims.
Claims (17)
1. A vortex prevention apparatus, comprising:
a screen basket disposing in a vessel for enclosing an outlet of the vessel; and a flow modifier disposed within the basket adjacent the outlet, the flow modifier at least including a plurality of vanes disposed radially around the outlet, at least some of the vanes having cross-tees extending from sides of the vanes.
a screen basket disposing in a vessel for enclosing an outlet of the vessel; and a flow modifier disposed within the basket adjacent the outlet, the flow modifier at least including a plurality of vanes disposed radially around the outlet, at least some of the vanes having cross-tees extending from sides of the vanes.
2. The apparatus of claim 1, wherein each of the vanes comprises:
a first end positioned adjacent the outlet;
a second end positioned adjacent a sidewall of the screen basket;
a first edge affixed to a base of the screen basket; and a second edge positioned adjacent a top of the screen basket.
a first end positioned adjacent the outlet;
a second end positioned adjacent a sidewall of the screen basket;
a first edge affixed to a base of the screen basket; and a second edge positioned adjacent a top of the screen basket.
3. The apparatus of claim 1 or 2, wherein the plurality of vanes comprise first vanes being first planar plates and comprise second vanes being second planar plates having the cross-tees extending from both planar sides of the first planar plates, the first and second vanes being alternatingly arranged around the outlet.
4. The apparatus of claim 3, wherein the cross-tees are disposed on the second vanes at a first distance from the sidewall of the screen basket that is less than a second distance from the outlet.
5. The apparatus of claim 3 wherein the cross-tees extend from both planar sides of the first planar plates by a first distance that is less than half of a second distance between the adjacent first and second vanes.
6. The apparatus of any one of claims 1 to 5, wherein the flow modifier comprises at least one stabilizer affixed to top edges of at least some of the vanes.
7. The apparatus of any one of claims 1 to 6, wherein the basket further comprises:
a base having an opening communicating with the outlet;
a sidewall screen having a plurality of first wires arranged around a plurality of first bars extending from the base; and a top screen positioned on the sidewall screen and having a plurality of second wires arranged across a plurality of second bars.
a base having an opening communicating with the outlet;
a sidewall screen having a plurality of first wires arranged around a plurality of first bars extending from the base; and a top screen positioned on the sidewall screen and having a plurality of second wires arranged across a plurality of second bars.
8. The apparatus of claim 7, further comprising a baffle plate disposed between the top screen and the flow modifier, the baffle plate restricting fluid flow passing through the top screen to a peripheral edge of the baffle plate adjacent the sidewall screen.
9. The apparatus of claim 7 or 8, wherein each of the first wires comprises a profiled wire having a wider side exposed outside the basket and having a narrower side welded to the first bars.
10. The apparatus of claim 7, 8, or 9, wherein each of the second bars has ends affixed to a surrounding band.
11. The apparatus of claim 10, wherein the surrounding band is affixed to the sidewall screen.
12. The apparatus of any one of claims 7 to 11, wherein the sidewall screen comprises a plurality of modular panels connected together.
13. A vortex prevention apparatus, comprising:
a base disposing in a vessel adjacent an outlet and having an opening communicating with the outlet;
a basket disposed on the base, the basket at least including a sidewall screen having a plurality of first wires arranged around a plurality of first bars extending from the base, and a top screen disposed on the sidewall screen and having a plurality of second wires arranged across a plurality of second bars; and a flow modifier disposed within the basket, the flow modifier at least including a plurality of vanes extending from the base and disposed radially around the opening in the base, at least some of the vanes having cross-tees extending from sides of the vanes.
a base disposing in a vessel adjacent an outlet and having an opening communicating with the outlet;
a basket disposed on the base, the basket at least including a sidewall screen having a plurality of first wires arranged around a plurality of first bars extending from the base, and a top screen disposed on the sidewall screen and having a plurality of second wires arranged across a plurality of second bars; and a flow modifier disposed within the basket, the flow modifier at least including a plurality of vanes extending from the base and disposed radially around the opening in the base, at least some of the vanes having cross-tees extending from sides of the vanes.
14. A vortex prevention apparatus, comprising:
means for screening fluid flow from inside a vessel to an outlet;
means for radially directing the screened fluid flow to the outlet; and means for perpendicularly breaking at least some of the radially directed fluid flow.
means for screening fluid flow from inside a vessel to an outlet;
means for radially directing the screened fluid flow to the outlet; and means for perpendicularly breaking at least some of the radially directed fluid flow.
15. The apparatus of claim 14, further comprising means for redirecting at least some of the screened fluid flow that is substantially coincident with an axis of the outlet to be substantially perpendicular to the axis.
16. The apparatus of claim 14 or 15, wherein the means for breaking is alternatingly disposed around the outlet.
17. A vessel, comprising:
a shell defining a hollow and having an outlet;
a screen basket disposed in the hollow of the shell and enclosing the outlet; and a flow modifier disposed within the basket, the flow modifier at least including a plurality of vanes disposed radially around the outlet, at least some of the vanes having cross-tees extending from sides of the vanes.
a shell defining a hollow and having an outlet;
a screen basket disposed in the hollow of the shell and enclosing the outlet; and a flow modifier disposed within the basket, the flow modifier at least including a plurality of vanes disposed radially around the outlet, at least some of the vanes having cross-tees extending from sides of the vanes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/117,695 | 2011-05-27 | ||
| US13/117,695 US8439071B2 (en) | 2011-05-27 | 2011-05-27 | Screen basket vortex breaker for vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2776606A1 true CA2776606A1 (en) | 2012-11-27 |
| CA2776606C CA2776606C (en) | 2016-08-09 |
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| CA2776606A Expired - Fee Related CA2776606C (en) | 2011-05-27 | 2012-05-10 | Screen basket vortex breaker for vessel |
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| US (2) | US8439071B2 (en) |
| EP (1) | EP2532439B1 (en) |
| JP (2) | JP5579777B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020047649A1 (en) * | 2018-09-06 | 2020-03-12 | 1460798 Alberta Ltd. | Counterflow vortex breaker |
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| US8439071B2 (en) * | 2011-05-27 | 2013-05-14 | Johnson Screens, Inc. | Screen basket vortex breaker for vessel |
| FR2981332B1 (en) * | 2011-10-18 | 2014-03-07 | Astrium Sas | DEVICE FOR EXPULSION / RETENTION OF LIQUIDS FOR A SPACE TANK TANK |
| US8651137B2 (en) * | 2011-10-21 | 2014-02-18 | Crossroads Machine Inc. | Gas manifold system for steady gas supply at outlet |
| US20130206263A1 (en) * | 2012-02-13 | 2013-08-15 | Anthony Brownlow | Vortex control apparatus |
| US10039240B2 (en) | 2013-08-14 | 2018-08-07 | Richard Alan Darnold | Device for monitoring and controlling water flow |
| US9970389B2 (en) * | 2014-03-06 | 2018-05-15 | The Boeing Company | Antivortex device and method of assembling thereof |
| US10378837B2 (en) * | 2014-05-01 | 2019-08-13 | Conocophillips Company | Liquid drains in core-in-shell heat exchanger |
| KR101812688B1 (en) * | 2015-11-27 | 2017-12-27 | (주)아성엠 | Tippping bucket type precipitation measuring apparatus |
| US10309432B2 (en) * | 2016-06-22 | 2019-06-04 | Fmc Technologies, Inc. | Flow conditioner |
| EP3720588B1 (en) | 2017-12-06 | 2023-08-30 | Cummins Filtration IP, Inc. | Crankcase ventilation systems having a swirl breaker to reduce pressure drop in tangentially exiting fluids |
| RU186449U1 (en) * | 2018-09-14 | 2019-01-21 | Акционерное общество "Корпорация "Стратегические пункты управления" АО "Корпорация "СПУ - ЦКБ ТМ" | Whirlpool Prevention Device |
| US20200149549A1 (en) * | 2018-11-09 | 2020-05-14 | Agco International Gmbh | Vortex adaption preventer |
| CN110027811A (en) * | 2019-05-08 | 2019-07-19 | 张化机（苏州）重装有限公司 | A kind of vortex-proof device |
| CN109987344A (en) * | 2019-05-08 | 2019-07-09 | 张化机（苏州）重装有限公司 | A kind of grid column vortex-proof device |
| KR102236202B1 (en) * | 2020-09-24 | 2021-04-06 | (주)에스티아이 | Tank supplying liquid chemical |
| CN115930091B (en) * | 2022-12-06 | 2024-03-22 | 中太能源科技(上海)有限公司 | Corner connecting structural member with thermal expansion and contraction functions |
| CN115818756A (en) * | 2023-02-14 | 2023-03-21 | 珠海巨涛海洋石油服务有限公司 | Liquid phase outlet vortex breaker |
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| US1391083A (en) * | 1919-04-08 | 1921-09-20 | Johns Machine And Stamping Wor | Wagon |
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| GB8713308D0 (en) * | 1987-06-06 | 1987-07-08 | Clean Water Co Ltd | Separators |
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-
2011
- 2011-05-27 US US13/117,695 patent/US8439071B2/en active Active
-
2012
- 2012-05-10 CA CA2776606A patent/CA2776606C/en not_active Expired - Fee Related
- 2012-05-11 AU AU2012202781A patent/AU2012202781B2/en not_active Ceased
- 2012-05-25 EP EP20120169657 patent/EP2532439B1/en active Active
- 2012-05-26 JP JP2012120339A patent/JP5579777B2/en not_active Expired - Fee Related
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2013
- 2013-05-13 US US13/893,101 patent/US9328869B2/en not_active Expired - Fee Related
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2014
- 2014-07-08 JP JP2014140912A patent/JP6155428B2/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020047649A1 (en) * | 2018-09-06 | 2020-03-12 | 1460798 Alberta Ltd. | Counterflow vortex breaker |
| US11839884B2 (en) | 2018-09-06 | 2023-12-12 | Sand Separation Technologies Inc. | Counterflow vortex breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| US20130248028A1 (en) | 2013-09-26 |
| EP2532439A3 (en) | 2013-04-10 |
| JP2014196147A (en) | 2014-10-16 |
| US8439071B2 (en) | 2013-05-14 |
| EP2532439B1 (en) | 2014-12-03 |
| US20120298232A1 (en) | 2012-11-29 |
| AU2012202781A1 (en) | 2012-12-13 |
| JP2012246060A (en) | 2012-12-13 |
| JP5579777B2 (en) | 2014-08-27 |
| CA2776606C (en) | 2016-08-09 |
| JP6155428B2 (en) | 2017-07-05 |
| AU2012202781B2 (en) | 2014-11-06 |
| EP2532439A2 (en) | 2012-12-12 |
| US9328869B2 (en) | 2016-05-03 |
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