CN103353386A - Self-circulation water tank used for tests - Google Patents
Self-circulation water tank used for tests Download PDFInfo
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- CN103353386A CN103353386A CN2013102886544A CN201310288654A CN103353386A CN 103353386 A CN103353386 A CN 103353386A CN 2013102886544 A CN2013102886544 A CN 2013102886544A CN 201310288654 A CN201310288654 A CN 201310288654A CN 103353386 A CN103353386 A CN 103353386A
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Abstract
The invention discloses a self-circulation water tank used for tests, which comprises a groove and a power system. A horizontal separator plate is arranged in the groove in the middle of the forward-and-backward direction, a front flow deflector is fixedly connected with the front end of the horizontal separator plate, and a rear flow deflector is fixedly connected with the rear end of the horizontal separator plate, wherein left and right sides of the front flow deflector are respectively fixedly connected with left and right sidewalls of the groove, and left and right sides of the rear flow deflector are also respectively fixedly connected with left and right sidewalls of the groove; and a damping screen is arranged at the end portion of the horizontal separator plate close to the front sidewall of the groove. The power system comprises a motor and a controller thereof, wherein the motor drives a transmission shaft, and a rotor wheel is mounted on the transmission shaft, positioned in the groove, and covered by an arc plate segment of the rear flow deflector. The self-circulation water tank used for tests has the advantages of high energy utilization rate, good flow state, freely-adjusted flow velocity and simple design; is convenient to manufacture, mount and dismount; and is suitable for a plurality of physical water-flow tests and teaching demonstration tests.
Description
Technical field
The present invention relates to fluid mechanics and hydraulics test apparatus field, specifically the teaching of a kind of fluid mechanics and hydraulics and test self-loopa tank.
Background technology
Tank is a kind of important fluid mechanics and hydraulics test instrument, and the prehuman just began to use tank to study various fluid mechanics and hydraulics phenomenon in over one hundred year.Tank of a great variety is divided into self-loopa and outer circulation tank on the whole.So-called self-loopa tank is the formation of tank and affiliated facility thereof and seals among a small circle water circulation system, orders about current by power system and circulates in tank.And the outer circulation tank, fixing current source is then arranged, generally be provided with cistern or other moisturizing facilities at the tank periphery, power system is driven into the water body in cistern or the moisturizing facility in the tank, flowing through is drained in the moisturizing facility behind the tank again, thereby forms the circulation system of current outflow.Compare the outer circulation tank, it is little that the self-loopa tank has floor area, and affiliated facility is simple, and controllability is strong, low cost and other advantages, therefore, be widely used in various in, low speed water test.
At present, the self-loopa tank uses external centrifugal water pump as power system, and notch is installed respectively water pipeline and is connected with water pump.Yet, utilize centrifugal water pump to have numerous drawbacks as the tank power system.At first, the utilization ratio of water pump is very low, and general flow velocity requires to be 0.5m.s
-1Tank need select the above water pump of 1000W, only reach 10% and its utilization factor is the highest; Secondly, the taking out of water pump, drainage speed are regulated underaction, generally only have fixing several power gears can be for regulating, thereby greatly reduce the applicability of tank; Again, because the pumping hole water currents, the notch flow-shape is disorderly, has affected to a certain extent the result of hydraulics test; In addition, external water pipeline is affected the globality of tank, in case the line clogging meeting has a strong impact on flow rate of water flow, and then the carrying out of impact test.As seen, the stability of flow-shape is all in urgent need to be improved in the efficient of self-loopa tank and correlation test device, applicability, permanance and the device.
Summary of the invention
The present invention provides a kind of test self-loopa tank for solving the technical matters that exists in the known technology, and this tank energy utilization rate is high, and flow-shape is good, but the flow velocity free adjustment is applicable to multiple current physical test and shows test with teaching.
The technical scheme that the present invention takes for the technical matters that exists in the solution known technology is: a kind of test self-loopa tank, comprise cell body and power system, in described cell body, be provided with front and back horizontal baffle placed in the middle, the left and right sides sidewall of described horizontal baffle and described cell body is affixed, described horizontal baffle is divided into up and down two parts with the inner space of described cell body, top is test section, and the bottom is the Drainage Section;
The front end of described horizontal baffle is connected with front flow guiding plate, the rear end of described horizontal baffle is connected with rear fair water fin, described front flow guiding plate is provided with rear portion flat plate section and the anterior arc plate section affixed with described horizontal baffle, the starting the arc that makes progress of described anterior arc plate section, go out circulation road before forming between the front side wall of described anterior arc plate section and described cell body, flat plate section is provided with a plurality of jet orifices at described rear portion; Described rear fair water fin is whistle shape, comprise anterior tilted plate section and rear portion arc plate section, the high rear end of the front end of described anterior tilted plate section is low, the front end of described anterior tilted plate section and described horizontal baffle following affixed, the front end of the rear end of described anterior tilted plate section and described rear portion arc plate section forms one, form laggard circulation road between the rear wall of described rear portion arc plate section and described cell body, the left and right sides of described front flow guiding plate and the left and right sides of described rear fair water fin are all affixed with the left and right sides sidewall of described cell body;
Be provided with honeycomb screen on the end of described horizontal baffle near the front side wall of described cell body, described honeycomb screen is vertical with described horizontal baffle, and the flow channels of described honeycomb screen is parallel with water (flow) direction;
Described power system comprises motor and controller, and described motor-driven transmission shaft is equipped with rotary blade on the described transmission shaft, and described rotary blade is positioned at described cell body, and below being covered on by described rear portion arc plate section.
Floating on the water surface between the front side wall of described honeycomb screen and described cell body have an advection plate.
Described transmission shaft is supported by two bearings, and described bearing is fixed on the outside of described cell body, and the outside of described bearing is covered with the bearing sealing, and described bearing sealing is fixed on the described cell body, has clamped rubber blanket between described bearing sealing and described cell body;
Be provided with the transmission shaft sealing that is installed on the described transmission shaft in the outside near the described bearing sealing of described motor, in the described transmission shaft sealing packing_seal be housed.
Left side wall at described cell body is provided with gauge, and 0 scale of described gauge is concordant with the upper surface of described horizontal baffle.
Described horizontal baffle is positioned at the middle and lower part of described cell body, and the degree of depth of described test section is greater than the degree of depth of described Drainage Section.
The inclination angle of described anterior tilted plate section is 20 °～30 °.
The sweeping angle of described anterior arc plate section is 90 °.
The sweeping angle of described rear portion arc plate section is 200 °.
The maximum spacing of described rotary blade and described rear portion arc plate section is no more than 1/10th of described rotary blade diameter.
Advantage and good effect that the present invention has are: replace traditional water pump by adopting motor and impeller as power system, power of motor can reduce 30%～40% than water pump under the equal flow condition, and service efficiency improves nearly 40%, this has significantly reduced the power consumption in the process of the test, has improved the utilization factor of energy.Simultaneously, this tank adopts motor and impeller as members such as power system and additional fair water fin, honeycomb screen and advection plates, avoided traditional water pump pumping hole current unfavorable phenomenon at random, reduced the turbulent fluctuation of tank water flow inside, can guarantee that fluid stable and flow velocity are even, be conducive to carrying out of hydraulics test.The velocity of flow adjust dirigibility of this tank is strong, after relation between definite motor speed and flow rate of water flow, only needs the regulating electric machine rotating speed can reach the purpose of controlling flow rate of water flow, and is simple to operation.This tank is except cell body itself, and remaining part is detachable, replacing all, maintains easily, and can prolong the serviceable life of tank.In addition, the tank one-piece construction is simple, manufactures and designs conveniently, and according to different Peak Flow Rate demands, the motor that only needs to change different capacity gets final product.This tank is showed test applicable to multiple hydraulics physical test and teaching, has very strong adaptability and practicality.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the longitudinal section of Fig. 1;
Fig. 3 is the structural representation of power system of the present invention.
Among the figure: 1, cell body, 2, horizontal baffle, 3, front flow guiding plate, 4, jet orifice, 5, rear fair water fin, 6, honeycomb screen, 7, the advection plate, 8, motor and controller, 9, synchronizing shaft, 10, transmission shaft, 11, bearing, 12, rotary blade, 13, the bearing sealing, 14, transmission shaft sealing, 15, rubber blanket, 16, packing_seal, 17, water filling port, 18, freeing port, 19, gauge.
Embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
See also Fig. 1～Fig. 3, a kind of test self-loopa tank, comprise cell body 1 and power system, in described cell body 1, be provided with front and back horizontal baffle 2 placed in the middle, described horizontal baffle 2 is affixed with the left and right sides sidewall of described cell body 1, described horizontal baffle 2 is divided into up and down two parts with the inner space of described cell body 1, and top is test section, and the bottom is the Drainage Section; The front end of described horizontal baffle 2 is connected with front flow guiding plate 3, the rear end of described horizontal baffle 2 is connected with rear fair water fin 5, described front flow guiding plate 3 is provided with rear portion flat plate section and the anterior arc plate section affixed with described horizontal baffle 2, the starting the arc that makes progress of described anterior arc plate section, go out circulation road before forming between the front side wall of described anterior arc plate section and described cell body 1, be provided with a plurality of jet orifices 4 in described rear portion flat plate section; Described rear fair water fin 5 is whistle shape, comprise anterior tilted plate section and rear portion arc plate section, the high rear end of the front end of described anterior tilted plate section is low, the front end of described anterior tilted plate section and described horizontal baffle 2 following affixed, the front end of the rear end of described anterior tilted plate section and described rear portion arc plate section forms one, form laggard circulation road between the rear wall of described rear portion arc plate section and described cell body, the left and right sides of the left and right sides of described front flow guiding plate 3 and described rear fair water fin 5 is all affixed with the left and right sides sidewall of described cell body 1; Be provided with honeycomb screen 6 on the end of described horizontal baffle 2 near the front side wall of described cell bodies 1, described honeycomb screen 6 is vertical with described horizontal baffle 2, and the flow channels of described honeycomb screen 6 is parallel with water (flow) direction; Described power system comprises motor and controller 8, and described motor-driven transmission shaft 10 is equipped with rotary blade 12 on the described transmission shaft 10, and described rotary blade 12 is positioned at described cell body 1, and below being covered on by described rear portion arc plate section.Same as the prior art, be provided with water filling port 17 on the top of described cell body 1, be provided with freeing port 18 in the bottom of described cell body 1.
In the present embodiment, floating on the water surface between the front side wall of described honeycomb screen 6 and described cell body 1 have an advection plate 7.Described transmission shaft 10 is by 11 supportings of two bearings, described bearing 11 is fixed on the outside of described cell body 1, the outside of described bearing 11 is covered with bearing sealing 13, and described bearing sealing 13 is fixed on the described cell body 1, has clamped rubber blanket between described bearing sealing 13 and described cell body 1; Be provided with the transmission shaft sealing 14 that is installed on the described transmission shaft 10 in the outside near the described bearing sealing 13 of described motor, in the described transmission shaft sealing packing_seal 16 be housed.Described transmission shaft 10 is connected by synchronizing shaft 9 with described motor.Left side wall at described cell body 1 is provided with gauge 19, and 0 scale of described gauge 9 is concordant with the upper surface of described horizontal baffle 2.Described horizontal baffle is positioned at the middle and lower part of described cell body, and the degree of depth of described test section is greater than the degree of depth of described Drainage Section.The inclination angle of described anterior tilted plate section is 20 °～30 °.The sweeping angle of described anterior arc plate section is 90 °.The sweeping angle of described rear portion arc plate section is 200 °.Described rotary blade 12 is no more than 1/10th of described rotary blade 12 diameters with the maximum spacing of described rear portion arc plate section.
Tank shown in the present embodiment is applicable to flow rate of water flow and is no more than 0.5m.s
-1Hydraulics physical test or teaching show test.In the present embodiment, cell body 1, horizontal baffle 2, front and back fair water fin 3,5, honeycomb screen 6, rotary blade 12, bearing sealing 13, transmission shaft sealing 14, water filling port 17 and freeing port 18 are pmma material; Advection plate 7 is wood materials; Synchronizing shaft 9 and transmission shaft 10 are pressed against steel for plating; Motor is selected the micro-machine of 250W, and subsidiary rotational speed governor, maximum (top) speed 1350r.min
-1The left side wall rear and front end section of above-mentioned cell body 1 arranges respectively a gauge 19.The width of horizontal baffle 2 is identical with the groove width of cell body 1, is fixed on the left and right sides sidewall of cell body 1, and the vacant certain distance of front and back sidewall among of horizontal baffle 2 and cell body 1 guarantees the setting of fair water fin and the abundant supply of current; Jet orifice on the front flow guiding plate can guarantee that current in the turning point smooth transition, avoid occuring whirlpool; The rear portion arc plate section size of rear fair water fin and the rotary blade size in the power system are complementary; Leading section at horizontal baffle arranges many rectification screens, and quantity is 10～15, following current to be evenly arranged in horizontal baffle 2 above.When the smooth-going condition of current does not reach requirement, advection plate 7 is set, be placed on the water surface between honeycomb screen 6 and cell body front side wall floating getting final product.The motor and controller 8 of power system can be configured according to the tank needs, is no more than the test of 0.5m.s-1 for flow velocity, selects the motor of 250W～500W to get final product; Transmission shaft passes the left and right sides sidewall of cell body 1 and supports by bearing, and bearing is fixed on the sidewall of cell body; Be positioned on the transmission shaft 10 of cell body 1 fixedly rotary blade 12, the material of rotary blade 12 can also be steel.The length of rotary blade 12 should be wide more smaller than tank, and diameter is more smaller than the diameter of rear portion arc plate section, and be no more than 1/10th of rotary blade diameter with the maximum spacing of rear portion arc plate section, and blade quantity is 4～8, and the coaxial radiation shape distributes; The bearing sealing is box-like, is placed in the bearing outside, and is affixed by flange and cell body sidewall, and pad is established rubber blanket 15 between flange and tank sidewall, guarantees sealing; Transmission shaft sealing 14 is sleeve-shaped, is fixed on bearing sealing 13 outsides of motor one side, is placed on the transmission shaft 10, and inside arranges packing and guarantees sealing.Concrete manufacture process is: make cell body 1, forward and backward fair water fin 3,5, honeycomb screen 6, advection plate 7 and rotary blade 12 according to real needs, selected transmission shaft 10 and bearing 11 are made sealing, and are finished above-mentioned each assembling parts; According to the selected motor and controller 8 of real needs, motor is connected fixed electrical machinery with transmission shaft 10; Trial run, the utilization current meter is determined the funtcional relationship between motor speed and the flow velocity, formulates flow velocity-tachometer gage, finishes tank and makes.
Although the above is described the preferred embodiments of the present invention by reference to the accompanying drawings; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away from the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.
Claims (9)
1. test self-loopa tank, comprise cell body and power system, it is characterized in that, in described cell body, be provided with front and back horizontal baffle placed in the middle, the left and right sides sidewall of described horizontal baffle and described cell body is affixed, described horizontal baffle is divided into up and down two parts with the inner space of described cell body, and top is test section, and the bottom is the Drainage Section;
The front end of described horizontal baffle is connected with front flow guiding plate, the rear end of described horizontal baffle is connected with rear fair water fin, described front flow guiding plate is provided with rear portion flat plate section and the anterior arc plate section affixed with described horizontal baffle, the starting the arc that makes progress of described anterior arc plate section, go out circulation road before forming between the front side wall of described anterior arc plate section and described cell body, flat plate section is provided with a plurality of jet orifices at described rear portion; Described rear fair water fin is whistle shape, comprise anterior tilted plate section and rear portion arc plate section, the high rear end of the front end of described anterior tilted plate section is low, the front end of described anterior tilted plate section and described horizontal baffle following affixed, the front end of the rear end of described anterior tilted plate section and described rear portion arc plate section forms one, form laggard circulation road between the rear wall of described rear portion arc plate section and described cell body, the left and right sides of described front flow guiding plate and the left and right sides of described rear fair water fin are all affixed with the left and right sides sidewall of described cell body;
Be provided with honeycomb screen on the end of described horizontal baffle near the front side wall of described cell body, described honeycomb screen is vertical with described horizontal baffle, and the flow channels of described honeycomb screen is parallel with water (flow) direction;
Described power system comprises motor and controller, and described motor-driven transmission shaft is equipped with rotary blade on the described transmission shaft, and described rotary blade is positioned at described cell body, and below being covered on by described rear portion arc plate section.
2. test according to claim 1 self-loopa tank is characterized in that, floating on the water surface between the front side wall of described honeycomb screen and described cell body have an advection plate.
3. test according to claim 1 self-loopa tank, it is characterized in that, described transmission shaft is supported by two bearings, described bearing is fixed on the outside of described cell body, the outside of described bearing is covered with the bearing sealing, described bearing sealing is fixed on the described cell body, has clamped rubber blanket between described bearing sealing and described cell body;
Be provided with the transmission shaft sealing that is installed on the described transmission shaft in the outside near the described bearing sealing of described motor, in the described transmission shaft sealing packing_seal be housed.
4. test according to claim 1 self-loopa tank is characterized in that, is provided with gauge at the left side wall of described cell body, and 0 scale of described gauge is concordant with the upper surface of described horizontal baffle.
5. test according to claim 1 self-loopa tank is characterized in that, described horizontal baffle is positioned at the middle and lower part of described cell body, and the degree of depth of described test section is greater than the degree of depth of described Drainage Section.
6. test according to claim 1 self-loopa tank is characterized in that, the inclination angle of described anterior tilted plate section is 20 °～30 °.
7. test according to claim 1 self-loopa tank is characterized in that, the sweeping angle of described anterior arc plate section is 90 °.
8. test according to claim 1 self-loopa tank is characterized in that, the sweeping angle of described rear portion arc plate section is 200 °.
9. test according to claim 1 self-loopa tank is characterized in that, the maximum spacing of described rotary blade and described rear portion arc plate section is no more than 1/10th of described rotary blade diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102886544A CN103353386A (en) | 2013-07-10 | 2013-07-10 | Self-circulation water tank used for tests |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102886544A CN103353386A (en) | 2013-07-10 | 2013-07-10 | Self-circulation water tank used for tests |
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| CN2013102886544A Pending CN103353386A (en) | 2013-07-10 | 2013-07-10 | Self-circulation water tank used for tests |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698103A (en) * | 2013-12-17 | 2014-04-02 | 河海大学 | River water environment physical model scale effect research test device |
| CN104599574A (en) * | 2014-12-29 | 2015-05-06 | 河海大学 | Physical model water tank with internal circulation flow generating device |
| CN105067284A (en) * | 2015-09-08 | 2015-11-18 | 山东省科学院海洋仪器仪表研究所 | Novel crane test bench and measuring mechanism |
| CN105761596A (en) * | 2016-05-09 | 2016-07-13 | 大连理工大学 | Combined water tank shear flow guiding device |
| CN106836112A (en) * | 2017-03-20 | 2017-06-13 | 清华大学 | A kind of experimental provision and method for studying waterpower water quality relation in cement lining river course |
| CN107462396A (en) * | 2017-06-29 | 2017-12-12 | 浙江大学 | A kind of experimental rig and method for being used to simulate Longkou closure hydrodynamic course |
| CN107817087A (en) * | 2017-11-01 | 2018-03-20 | 河海大学 | A kind of water tank device and operating method for being used to simulate open channel HYDRODYNAMIC CHARACTERISTICS |
| CN110375959A (en) * | 2019-08-09 | 2019-10-25 | 中山大学 | A kind of circulating water chennel combination unit and its water circulation method |
| CN110441029A (en) * | 2019-08-12 | 2019-11-12 | 西安交通大学 | Flow measurement experimental provision and experimental method based on MRI system |
| CN111254869A (en) * | 2020-01-21 | 2020-06-09 | 上海海洋大学 | Surface flow experiment system based on double-zone overflow |
| CN114112293A (en) * | 2021-08-30 | 2022-03-01 | 水利部交通运输部国家能源局南京水利科学研究院 | Rectification measurement and control system for water tank and flow regulation control method |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698103A (en) * | 2013-12-17 | 2014-04-02 | 河海大学 | River water environment physical model scale effect research test device |
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| CN104599574A (en) * | 2014-12-29 | 2015-05-06 | 河海大学 | Physical model water tank with internal circulation flow generating device |
| CN105067284A (en) * | 2015-09-08 | 2015-11-18 | 山东省科学院海洋仪器仪表研究所 | Novel crane test bench and measuring mechanism |
| CN105761596B (en) * | 2016-05-09 | 2018-05-04 | 大连理工大学 | Combined sink shear flow guiding device |
| CN105761596A (en) * | 2016-05-09 | 2016-07-13 | 大连理工大学 | Combined water tank shear flow guiding device |
| CN106836112A (en) * | 2017-03-20 | 2017-06-13 | 清华大学 | A kind of experimental provision and method for studying waterpower water quality relation in cement lining river course |
| CN107462396A (en) * | 2017-06-29 | 2017-12-12 | 浙江大学 | A kind of experimental rig and method for being used to simulate Longkou closure hydrodynamic course |
| CN107817087A (en) * | 2017-11-01 | 2018-03-20 | 河海大学 | A kind of water tank device and operating method for being used to simulate open channel HYDRODYNAMIC CHARACTERISTICS |
| CN107817087B (en) * | 2017-11-01 | 2020-02-21 | 河海大学 | Water tank device for simulating open channel hydrodynamic characteristics and operation method |
| CN110375959A (en) * | 2019-08-09 | 2019-10-25 | 中山大学 | A kind of circulating water chennel combination unit and its water circulation method |
| CN110375959B (en) * | 2019-08-09 | 2021-11-09 | 中山大学 | Circulating water tank combination device and water flow circulating method thereof |
| CN110441029A (en) * | 2019-08-12 | 2019-11-12 | 西安交通大学 | Flow measurement experimental provision and experimental method based on MRI system |
| CN110441029B (en) * | 2019-08-12 | 2020-09-25 | 西安交通大学 | Flow measurement experimental device and method based on nuclear magnetic resonance imaging system |
| CN111254869A (en) * | 2020-01-21 | 2020-06-09 | 上海海洋大学 | Surface flow experiment system based on double-zone overflow |
| CN114112293A (en) * | 2021-08-30 | 2022-03-01 | 水利部交通运输部国家能源局南京水利科学研究院 | Rectification measurement and control system for water tank and flow regulation control method |
| CN114112293B (en) * | 2021-08-30 | 2024-04-09 | 水利部交通运输部国家能源局南京水利科学研究院 | Rectifying measurement and control system and rectifying control method for water tank |
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Application publication date: 20131016 |