CN104180693B - A kind of novel full adverse current rotates without direct contact heat exchanger - Google Patents
A kind of novel full adverse current rotates without direct contact heat exchanger Download PDFInfo
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- CN104180693B CN104180693B CN201410406850.1A CN201410406850A CN104180693B CN 104180693 B CN104180693 B CN 104180693B CN 201410406850 A CN201410406850 A CN 201410406850A CN 104180693 B CN104180693 B CN 104180693B
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Abstract
The present invention is that a kind of novel full adverse current rotates without direct contact heat exchanger; Except heat exchanger pedestal, heat exchanger other parts in use rotate, heat exchanger by heat exchanger cylindrical shell, flow channel converter, end socket in heat exchanger, heat exchanger outside head and heat exchanger pedestal are formed; The full adverse current realizing two fluids, without the rotary heat exchange of mixing, reaches the object strengthening heat transfer effect.Heat exchanger cylindrical shell is the cylindrical tube that there are more than 2 or 2 even number baffle plates an inside, cylindrical shell is evenly divided into multiple even number decile by baffle plate, left and right sides baffle plate and the cylindrical tube part folded by centre thereof form a fan-shaped runner, adopt flow channel converter as runner conversion equipment.This heat exchanger is used for fluid thermal and exchanges occasion, has heat exchange efficiency high, and heat exchange mean temperature difference is large, and the outlet temperature uniformity is high, without features such as mixing between heat exchanging fluid.Of the present invention of many uses, can be applicable to the heat conduction reinforced or temperature homogenisation in commercial Application between different fluid.
Description
Technical field
The present invention relates to a kind of novel full adverse current to rotate without direct contact heat exchanger, belong to fluid heat transfer equipment and technology category.
Background technology
Heat transfer process is very general in industrial process and daily life, is one of basic physical process of occurring in nature.It is extensively seen in as departments such as power, chemical industry, metallurgy, space flight, air-conditioning, refrigeration, machinery, light textile, buildings.Be greatly the Turbo-generator Set of 1,300,000 kilowatts to single-machine capacity, the little cooling to microelectronic component is all closely related with diabatic process.Heat exchanger is a kind of common apparatus of extensive use in diabatic process, and in oil refining enterprise, the equipment investment of heat exchanger accounts for 25% of gross investment, and the weight of heat exchanger accounts for 20% of gross weight of equipment amount.For power plant, the investment of the heat transmission equipments such as various boiler, condenser heater accounts for 70% of the investment of whole power plant.In refrigeration plant, the weight of evaporimeter, condenser also will account for more than 30% of whole unit weight.
Due to the importance of heat exchanger in actual application, from energy-conservation angle, in order to reduce the volume of heat exchanger further, weight reduction and metal consumption, reduce the power that heat exchanger consumes, and heat exchanger is worked under comparatively Low Temperature Difference, the heat transfer in heat exchanger must be strengthened by various way.Therefore recently for over ten years, how augmentation of heat transfer effect is the Main way in heat trnasfer research always.The Main Means of current augmentation of heat transfer comprises following several: 1, increase heat exchange area, by fin, and opposite sex surface, porous mass structure, reduces the methods such as caliber and realizes; 2, increase the Average heat transfer temperature difference, realized by modes such as adverse current or cross-flow heat exchange; 3, increase overall heat-transfer coefficient, reduce heat transfer boundary layer effect, by improving gas flow rate, strengthening gas disturbance, adding solid particle in a fluid, adopt the modes such as short tube heat exchanger.
The heat exchanger that current heat trnasfer uses mainly contains pipe heat exchanger, plate type heat exchanger, heat-pipe heat exchanger.Heat exchanger and reinforcement technique thereof are also mainly the improvement of static structure, adopt finned tube, screwed pipe, the technology such as pluggable unit in pipe, increase heat exchange area, strengthen less turbulence, reduce heat transmission resistance.At present, the research for dynamic heat exchange device is also fewer, and CN103175420A discloses a kind of core rotation type heat exchanger, its mode rotated mainly through heat exchange core body, increases the less turbulence of tubular heat exchanger shell-side fluid, reaches the object strengthening heat transfer effect.CN202013125U discloses a kind of fluid impact rotary type heat exchanger, and its method adopted arranges impeller at the shell side of shell-and-tube heat exchanger, relies on shell-side fluid to flow through the disturbance of vane rotary increase shell side, thus reaches the object increasing heat transfer effect.The present invention then have employed the design of fan-shaped spaced-apart flow passages, and cold fluid and hot fluid all rotates, and for increasing the level of disruption of fluid, peels off heat transfer boundary layer, reaches the object strengthening heat-transfer effect.
Summary of the invention
The object of the present invention is to provide a kind of novel complete mixing flow to rotate without direct contact heat exchanger, this heat exchanger is used for fluid thermal and exchanges occasion, has heat exchange efficiency high, and heat exchange mean temperature difference is large, and the outlet temperature uniformity is high, without features such as mixing between heat exchanging fluid.
The present invention is realized by following technical proposals, a kind of novel complete mixing flow rotates without direct contact heat exchanger, it is characterized in that heat exchanger cylindrical shell 7 is that an inside has multi-piece baffle plate cylindrical tube, cylindrical shell is evenly divided into multiple even number decile by baffle plate, and left and right sides baffle plate and the cylindrical tube part folded by centre thereof form a fan-shaped runner.Flow channel converter 5 and 6 is runner conversion equipment, structure is identical, its basic composition unit is flow channel converter outer baffle 6-1, flow channel converter Internal baffle 6-2 and flow channel converter dividing plate 6-3, in the left side of flow channel converter 6, the left side edge of outer baffle 6-1 and Internal baffle 6-2 forms a circle, circular interior is cross section E, annular section between circular outer and flow channel converter cylindrical shell 7 is cross section G, the region formed between the flow channel converter dividing plate 6-3 of Internal baffle 6-2 and its both sides and heat exchanger cylindrical shell 7 is cross section H, the region formed between the flow channel converter dividing plate 6-3 of outer baffle 6-1 and both sides is cross section F.The cross section, right side of outer baffle 6-1 is a circular arc, and the right side circular arc of all outer baffles is concentric, and on the right side of outer baffle 6-1, cross section and heat exchanger cylindrical shell 7 coincide, and coincides on the left of the right side edge of runner interchanger dividing plate 6-3 and heat exchanger cylindrical shell 7 baffle plate.All flow channel converter Internal baffle 6-1 intersect at a point on right side, and the Left-side center point of this point and heat exchanger cylindrical shell 7 baffle plate coincides.In flow channel converter 6 left side cross-sectional and heat exchanger, on the right side of end socket 2, cross section coincides.On the right side of heat exchanger outside head 1, on the right side of cross section and heat exchanger cylindrical shell, cross section coincides.Flow channel converter 5, heat exchanger outside head 3, in heat exchanger, end socket 4 is respectively flow channel converter 6, heat exchanger outside head 1, and in heat exchanger, end socket 2 is relative to the mirror image of the central cross-section on heat exchanger left and right directions.Except heat exchanger pedestal 8 and heat exchanger pedestal 9, remaining part be all along Y-axis to axially symmetric structure.Heat exchanger pedestal 8 coincides with the upper curved surfaces of heat exchanger pedestal 9 and the outer surface of heat exchanger cylindrical shell.In said structure, except heat exchanger pedestal 8 and heat exchanger pedestal 9, remaining part in use all in axial direction rotates with speed under external force condition.
The cylindrical shell baffle number of above-mentioned heat exchanger can be more than 2 or 2 even numbers, and the quantity of the dividing plate of flow channel converter is identical with it simultaneously, and in flow channel converter, the quantity of outer baffle is respectively the half of above-mentioned quantity.
The area of the left side cross-sectional E of the flow channel converter of above-mentioned heat exchanger and the ratio of heat exchanger cylindrical shell left side cross-sectional area are 0.1-0.9:1
The Internal baffle of the flow channel converter of above-mentioned heat exchanger and the tapering of outer baffle are 10-170 degree.
Point segmental arc of the A end face circle of above-mentioned double-conical surface multiple passageway mixing unit is 0.5-2:1 for the segmental arc forming vertebra face fin with the ratio of the corresponding central angle of segmental arc for forming vertebra face groove
Said structure is except except heat exchanger pedestal 8 and heat exchanger pedestal 9, and the speed that remainder in use rotates vertically is 0-100r/s.
Novel full adverse current of the present invention rotates without direct contact heat exchanger, its principle is in use: cold fluid ring section A on the left of heat exchanger flows into, fluid when touching the left-hand face of end socket 2 in heat exchanger owing to being stopped, the G runner of flow channel converter 6 is flowed into along interior end socket left-hand face, the liquid of G runner is owing to being subject to the barrier effect of heat exchanger flow channel converter 6 outer baffle, enter the H runner of flow channel converter 6, in H runner, flow through runner corresponding with H runner in heat exchanger cylindrical shell simultaneously, this fluid streams enters the F runner of heat exchanger flow channel converter 5 after flowing through heat exchanger cylindrical shell, be subject to the effect of the outer baffle of heat exchanger flow channel converter 5 simultaneously, collect to center, enter the E runner of heat exchanger flow channel converter 5.After this fluid streams flows through flow channel converter 5, owing to being subject to the barrier effect of end socket 4 left-hand face in heat exchanger, collect to center, finally flowed out by heat exchanger right center fluid issuing cross section D.Hot fluid flows into from heat exchanger right circular cross section C, fluid when touching the right lateral surface of end socket 4 in heat exchanger owing to being stopped, the G runner of flow channel converter 5 is flowed into along interior end socket 4 left-hand face, the liquid of G runner is owing to being subject to the barrier effect of heat exchanger flow channel converter 5 outer baffle, enter the H runner of flow channel converter 5, in H runner, flow through runner corresponding with H runner in heat exchanger cylindrical shell simultaneously, this fluid streams enters the F runner of heat exchanger flow channel converter 6 after flowing through heat exchanger cylindrical shell, be subject to the effect of the outer baffle of heat exchanger flow channel converter 6 simultaneously, collect to center, enter the E runner of heat exchanger flow channel converter 6.After this fluid streams flows through flow channel converter 6, owing to being subject to the barrier effect of end socket 2 right lateral surface in heat exchanger, collect to center, finally flowed out by heat exchanger Left-side center fluid issuing cross section B.The passage of cold and hot two fluids in heat exchanger carries out heat exchange, and passage is spaced, and situation about mixing can not occur.Cold fluid and hot fluid in heat exchanger in flow process, owing to being subject to the impact that heat exchanger self rotates, fluid in heat exchanger through time, its streamline be helical forward, add the flow distance of fluid in heat exchanger.Simultaneously due to the existence of turning effort, add the less turbulence of fluid, have updated the boundary layer of heat exchange, simultaneously due to the existence of turning effort, fluid is in runner inner constantly oneself mixing, add the temperature uniformity of fluid issuing, improve the mean temperature difference of heat exchange, reach the object of augmentation of heat transfer.
Of the present invention of many uses, can be applicable to the heat conduction reinforced or temperature homogenisation in commercial Application between different fluid.When being applied to different occasions, Different structural parameters can be selected.
The present invention is as a kind of new type heat exchanger, and tool has the following advantages:
1. structure is simple, and it is convenient to make and install, and owing to have employed rotational structure, the weight of metallic materials reached needed for same flow pattern reduces, thus reduces equipment investment;
2. full counter-flow heat exchange, adds heat exchange mean temperature difference, enhances heat-transfer effect.
3. heat transfer efficiency is high, and fluid temperature (F.T.) homogenization is obvious, and the time of staying is well improved;
4. flow resistance is low, and the energy consumption reaching identical heat-transfer effect is little;
5. continuous flow line type design, flowing, without dead band, can not occur to flow individually the situation that stock cannot flow out blender;
6. the peeling effect in pair boundary layer is better, and internal flow constantly impacts heat-transfer area, convective heat-transfer coefficient in reinforced pipe, augmentation of heat transfer;
7. cold fluid and hot fluid runner in rotary course remains released state, occurs without mixing phenomena;
8., for different application scenarios and operating condition, flexibly changing Unit agent structure parameter, reaches optimization.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is outside head 1 and outside head 3 structural representation.
Fig. 3 is interior end socket 2 and interior end socket 4 structural representation
Fig. 4 is flow channel converter 5 and flow channel converter 6 structural representation
Fig. 5 is heat exchanger cylindrical shell 7 structural representation
Fig. 6 is heat exchanger pedestal 8 and heat exchanger pedestal 9 structural representation.
In figure, 1 is outside head on the left of heat exchanger, and 2 is interior end sockets on the left of heat exchanger, 3 is outside heads on the right side of heat exchanger, 4 is interior end sockets on the right side of heat exchanger, and 5 is flow channel converter on the right side of heat exchanger, and 6 is flow channel converter on the left of heat exchanger, 6-1 is the outer baffle of flow channel converter, 6-2 is the Internal baffle of flow channel converter, and 6-3 is the dividing plate of flow channel converter, and 7 is heat exchanger cylindrical shells, 8 is pedestals on the right side of heat exchanger, and 9 is pedestals on the left of heat exchanger.A is annular fluid inlet cross section on the left of heat exchanger, B is circular fluid issuing cross section on the left of heat exchanger, C is heat exchanger right circular fluid inlet cross section, D is circular outlet on the right side of heat exchanger, E is the Left-side center cross section of flow channel converter, F is the cross section between two flow channel converter dividing plates and a flow channel converter outer baffle, G is the ring section that on the left of flow channel converter, outside is formed with heat exchanger cylindrical shell, the cross section between H two flow channel converter dividing plates and a flow channel converter Internal baffle and heat exchanger cylindrical shell.
Detailed description of the invention
Below for the embodiment of the present invention in augmentation of heat transfer, but described full adverse current rotates effect without direct contact heat exchanger not only in this, and take a single example explanation.
Embodiment
The principal length that the full adverse current adopted rotates without direct contact heat exchanger is 1m, diameter is 0.4 meter, wherein heat exchanger cylindrical shell septum plate length is 0.8 meter, runner interchanger length is 0.1 meter, heat exchanger cylindrical shell dividing plate and each flow channel converter dividing plate quantity are 8, and each flow channel converter outer baffle and Internal baffle are 4.Original paper thickness is 1mm, and material is stainless steel.Flow channel converter left side cross-sectional diameter is 0.3m.Test medium is air, and cold air flows is 11.3 cubes of meter per seconds, inlet temperature 300K, and the flow of hot-air is 11.3 cubes of meter per seconds, and inlet temperature is 800K.Fluent fluid calculation software is utilized to carry out simulation Calculation of Heat Transfer.The heat-transfer effect obtained contrasts with the tubular heat exchanger under identical heat exchange area condition.Tubular heat exchanger diameter of the housing 0.4m, theme length is 1m, and tubulation diameter is 0.05 meter, contrasts under identical total heat exchange area condition: the heat power that full adverse current rotates without direct contact heat exchanger is 924W, and overall heat-transfer coefficient is 4.55W/m
2k, the non-uniform temperature degree of cold fluid outlet is 22K.The heat power of common tubular heat exchanger is 530W, and overall heat-transfer coefficient is 1.17W/m
2k, the non-uniform temperature degree of cold fluid outlet is 67K.As can be seen from the results, under the same conditions, compared with common tubular heat exchanger, the heat power that novel full adverse current rotates without direct contact heat exchanger improves 74%, and overall heat-transfer coefficient improves 289%, and the unevenness of outlet temperature there has also been obvious reduction.
Claims (10)
1. novel full adverse current rotates without a direct contact heat exchanger, it is characterized in that, except heat exchanger pedestal, heat exchanger other parts in use rotate, heat exchanger is by heat exchanger cylindrical shell, flow channel converter, end socket in heat exchanger, heat exchanger outside head and heat exchanger pedestal are formed; The full adverse current realizing two fluids, without the rotary heat exchange of mixing, reaches the object strengthening heat transfer effect.
2. heat exchanger as claimed in claim 1, it is characterized in that heat exchanger cylindrical shell is the cylindrical tube that there are more than 2 or 2 even number baffle plates an inside, cylindrical shell is evenly divided into multiple even number decile by baffle plate, left and right sides baffle plate and the cylindrical tube part folded by centre thereof form a fan-shaped runner, adopt flow channel converter as runner conversion equipment.
3. heat exchanger as claimed in claim 1, it is characterized in that described flow channel converter, be made up of multiple interior outer baffle and dividing plate, the quantity of flow channel converter dividing plate is identical with the quantity of heat exchanger inner barrel baffle plate, the quantity of interior outer baffle is respectively the half of above-mentioned quantity, H passage and the F channel spacing of flow channel converter arrange, and are connected respectively with the sector channel of heat exchanger cylindrical shell.
4. heat exchanger as claimed in claim 1, is characterized in that described interior end socket entrance section and flow channel converter E cross section coincide.
5. heat exchanger as claimed in claim 1, is characterized in that described outside head outlet and heat exchanger cylindrical shell cylindrical cross-section coincide.
6. heat exchanger as claimed in claim 1, is characterized in that described heat exchanger pedestal top circular cross-section and heat exchanging body cylindrical shell cross section coincide.
7. heat exchanger as claimed in claim 1, is characterized in that the area of the left side cross-sectional E of the flow channel converter of heat exchanger and the ratio of heat exchanger cylindrical shell left side cross-sectional area are 0.1-0.9:1.
8. heat exchanger as claimed in claim 1, is characterized in that the Internal baffle of the flow channel converter of heat exchanger and the tapering of outer baffle are 10-170 degree.
9. heat exchanger as claimed in claim 1, is characterized in that point segmental arc of the A end face circle of the flow channel converter of heat exchanger, is 0.5-2:1 for the segmental arc forming vertebra face fin with the ratio of the corresponding central angle of segmental arc for forming vertebra face groove.
10. heat exchanger as claimed in claim 1, it is characterized in that heat exchanger is overall except pedestal (9) on the left of pedestal on the right side of heat exchanger (8) and heat exchanger, the speed that remainder in use rotates vertically is 0-100r/s.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410406850.1A CN104180693B (en) | 2014-08-18 | 2014-08-18 | A kind of novel full adverse current rotates without direct contact heat exchanger |
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| CN201410406850.1A CN104180693B (en) | 2014-08-18 | 2014-08-18 | A kind of novel full adverse current rotates without direct contact heat exchanger |
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| CN104180693B true CN104180693B (en) | 2016-01-13 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2163357Y (en) * | 1993-07-23 | 1994-04-27 | 陈启松 | Rotary spiral fin heat exchanger |
| CN1148429A (en) * | 1994-05-09 | 1997-04-23 | 克瓦纳尔工程有限公司 | Heat exchanger |
| US6050333A (en) * | 1997-11-10 | 2000-04-18 | Albaroudi; Homam M. | Rotary heat exchange apparatus for condensing vapor |
| CN1317680A (en) * | 2000-04-10 | 2001-10-17 | 臧宝华 | Method and equipment for gas heast exchange |
| US6938687B2 (en) * | 2002-10-03 | 2005-09-06 | Holl Technologies Company | Apparatus for transfer of heat energy between a body surface and heat transfer fluid |
-
2014
- 2014-08-18 CN CN201410406850.1A patent/CN104180693B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2163357Y (en) * | 1993-07-23 | 1994-04-27 | 陈启松 | Rotary spiral fin heat exchanger |
| CN1148429A (en) * | 1994-05-09 | 1997-04-23 | 克瓦纳尔工程有限公司 | Heat exchanger |
| US6050333A (en) * | 1997-11-10 | 2000-04-18 | Albaroudi; Homam M. | Rotary heat exchange apparatus for condensing vapor |
| CN1317680A (en) * | 2000-04-10 | 2001-10-17 | 臧宝华 | Method and equipment for gas heast exchange |
| US6938687B2 (en) * | 2002-10-03 | 2005-09-06 | Holl Technologies Company | Apparatus for transfer of heat energy between a body surface and heat transfer fluid |
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| CN104180693A (en) | 2014-12-03 |
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