CN220304338U - Electrolyte cooling heat exchanger - Google Patents
Electrolyte cooling heat exchanger Download PDFInfo
- Publication number
- CN220304338U CN220304338U CN202322034177.0U CN202322034177U CN220304338U CN 220304338 U CN220304338 U CN 220304338U CN 202322034177 U CN202322034177 U CN 202322034177U CN 220304338 U CN220304338 U CN 220304338U
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- heat exchange
- electrolyte
- refrigerant
- tube
- plate
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 67
- 238000001816 cooling Methods 0.000 title claims abstract description 25
- 239000003507 refrigerant Substances 0.000 claims abstract description 65
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004023 plastic welding Methods 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims 7
- 238000005536 corrosion prevention Methods 0.000 abstract description 2
- 229910052720 vanadium Inorganic materials 0.000 description 6
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 6
- 238000004146 energy storage Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to the field of heat exchange, and provides an electrolyte cooling heat exchanger. The heat exchange device comprises a heat exchange shell, wherein a flange plate is arranged at the opening end of the heat exchange shell, a refrigerant cover is arranged on the outer side of the flange plate, a tube plate is arranged between the refrigerant cover and the flange plate, and a heat exchange core body is arranged in the heat exchange shell; the refrigerant cover is a plastic cover, a pair of mutually independent semicircular cavities are arranged on one side of the refrigerant cover facing the flange plate, the pair of semicircular cavities are distributed up and down, a refrigerant liquid inlet pipe and a refrigerant liquid return pipe are arranged on one side of the refrigerant cover away from the flange plate, the refrigerant liquid inlet pipe is communicated with the semicircular cavity below, and the refrigerant liquid return pipe is communicated with the semicircular cavity above; a flow dispersing plate is arranged in the semicircular cavity below. The technical scheme is that the heat exchanger designed for the corrosive electrolyte meets the heat exchange requirement of the electrolyte on a large flow rate on the basis of corrosion prevention design, and ensures the working temperature of the heat exchanger.
Description
Technical Field
The utility model relates to the field of heat exchange, in particular to an electrolyte cooling heat exchanger.
Background
The vanadium redox flow battery energy storage system has high safety, and when the vanadium redox flow battery energy storage system operates at normal temperature and normal pressure, heat generated by the battery system can be effectively discharged through electrolyte solution and then discharged outside the system through heat exchange, and the electrolyte solution is non-combustion and non-explosion aqueous solution, so that the system has high operation safety and is widely applied to the energy storage field, in particular to energy storage of wind power generation.
The electrolyte of the vanadium battery can be recycled infinitely in the working process, and no attenuation exists in the life-span shortage period, so that the vanadium battery has an ultra-long service life. The ideal running temperature of the electrolyte in the vanadium battery is 48-55 ℃, and when the temperature is too high, the energy storage efficiency and the safety of the battery are affected, and the service life of the battery is affected, so that the electrolyte is required to be cooled, and the working temperature of the electrolyte is ensured.
At present, the conventional cooling mode mainly comprises air cooling and compression refrigeration cooling, because wind power generation is usually carried out at places such as seaside, desert, ocean platform and the like, and a battery is generally positioned in a unit, under the high-temperature environment, the air cooling effect is poor due to the limitation of the environment temperature and the space of the place, and water cooling is usually adopted. The water cooling can be performed by selecting condensed water or refrigerant for cooling, and the heat exchange between the electrolyte and the cooling water is performed by the heat exchanger, so that the heat in the electrolyte is taken out, and the working temperature of the electrolyte is ensured. Conventional heat exchangers cannot be used for heat exchange because of the corrosive nature of the electrolyte.
Disclosure of Invention
In order to meet the cooling requirement of the electrolyte of the vanadium battery, the utility model aims to provide a cooling heat exchanger suitable for the application occasion of cooling the electrolyte.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the electrolyte cooling heat exchanger comprises a heat exchange shell, wherein one end of the heat exchange shell is closed, the other end of the heat exchange shell is open, a flange is arranged at the open end of the heat exchange shell, a refrigerant cover is arranged on the outer side of the flange, a tube plate is arranged between the refrigerant cover and the flange, and the refrigerant cover, the tube plate and the flange are fixedly connected through a plurality of bolts; the inside of the heat exchange shell is provided with a heat exchange core, the outer side surface of the heat exchange shell is provided with an electrolyte inlet pipe and an electrolyte outlet pipe, the electrolyte inlet pipe is close to one side of the flange, the electrolyte outlet pipe is close to one side of the closed end of the heat exchange shell, and electrolyte enters the heat exchange shell through the electrolyte inlet pipe and is output from the heat exchange shell through the electrolyte outlet pipe; the refrigerant cover is a plastic cover, a pair of mutually independent semicircular cavities are arranged on one side, facing the flange, of the refrigerant cover, a refrigerant liquid inlet pipe and a refrigerant liquid return pipe are arranged on one side, far away from the flange, of the refrigerant cover, the refrigerant liquid inlet pipe is communicated with the semicircular cavity below, and the refrigerant liquid return pipe is communicated with the semicircular cavity above; a diffusing plate is arranged in the semicircular cavity below, the diffusing plate corresponds to the cross section of the semicircular cavity below, and densely distributed diffusing holes are formed in the diffusing plate; the tube plate is made of plastic, the tube plate is tightly attached to the refrigerant cover, a gasket is arranged between the tube plate and the refrigerant cover, and liquid passing holes which are uniformly distributed are respectively arranged at the positions of the tube plate corresponding to the pair of semicircular cavities; the heat exchange core body comprises a U-shaped heat exchange tube, a plurality of baffle plates and a plurality of parallel fixing screws, the U-shaped heat exchange tube is a titanium alloy heat exchange tube, a refrigerant liquid inlet end of the U-shaped heat exchange tube passes through a liquid passing hole on the tube plate to be communicated with a corresponding semicircular cavity, a refrigerant enters the U-shaped heat exchange tube through a refrigerant liquid inlet tube, and electrolyte after heat exchange in the U-shaped heat exchange tube returns to the refrigerating unit through a refrigerant liquid return tube.
Further, the fixed screw is a plastic screw, and one end of the fixed screw is fixedly connected with the blind hole on the tube plate through external threads; the U-shaped heat exchange tubes penetrate through the baffle plates, and a plurality of parallel fixing screws penetrate through the edges of the baffle plates to fix the baffle plates.
Further, the baffle plate is a round plastic plate corresponding to the internal section of the heat exchange shell, the bottom or the top of the baffle plate is cut off to form a through flow port, and the cut-off part is less than half of the sectional area of the heat exchange shell.
Further, a positioning sleeve is sleeved on each fixed screw, and two ends of the positioning sleeve limit the opposite side surfaces of two adjacent baffle plates.
Further, at least two connecting holes corresponding to the bolt holes of the flange plate are formed in the outer ring of the gasket, and through holes corresponding to the pair of semicircular cavities are formed in the gasket.
Further, a sealing ring is arranged between the tube plate and the flange plate, a reinforcing ring is arranged on one side, far away from the tube plate, of the flange plate, and the reinforcing ring is fixedly connected with the flange plate, the tube plate and the refrigerant cover through bolts.
Further, the sealing ring is a tetrafluoro gasket, the center of the tetrafluoro gasket is a through hole corresponding to the end face of the heat exchange shell, and a circle of screw holes corresponding to the flange plate are formed in the position, close to the outer side edge, of the tetrafluoro gasket.
Still further, electrolyte feed liquor pipe and electrolyte drain pipe are plastic tubing, pass through plastic welded connection with the heat exchange shell.
After the technical scheme is adopted, the beneficial effects of the utility model are as follows:
in order to meet the cooling requirement of electrolyte and avoid the electrolyte from corroding the heat exchanger, the shell, the tube plate, the refrigerant cover, the baffle plate, the liquid inlet and outlet pipelines, the heat exchange shell and the like which are made of plastic materials are adopted in the technical scheme, corrosion is avoided, the U-shaped heat exchange tube in the heat exchange core body is made of corrosion-resistant titanium metal, the screw rod for fixing the heat exchange core body is made of plastic materials, corrosion can be effectively avoided, and the heat exchange application of the electrolyte is met.
Refrigerant is introduced into the tube pass inside the U-shaped heat exchange tube, electrolyte is introduced into the shell pass formed by the heat exchange shell and the baffle plate, so that heat exchange between the tube pass and the shell pass is formed, the heat exchange requirement of the high-flow electrolyte is met, and meanwhile, the time for heat exchange is increased due to the arrangement of the baffle plate, and the heat exchange effect is ensured.
The separation of the refrigerant liquid inlet and liquid outlet is realized through the two semicircular cavities on the refrigerant cover, and the leakage and mixing of the refrigerant are prevented by adding a gasket; a sealing ring is arranged between the tube plate and the flange plate, so that leakage of electrolyte is prevented; the electrolyte inlet and outlet pipe is connected with the heat exchange shell through plastic welding, so that leakage at the joint can be avoided.
The technical scheme is that the heat exchanger designed for the corrosive electrolyte meets the heat exchange requirement of the electrolyte on a large flow rate on the basis of corrosion prevention design, and ensures the working temperature of the heat exchanger.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the refrigerant cover.
Fig. 3 is a schematic view of the structure of the tube sheet.
Fig. 4 is a schematic structural view of a heat exchange core.
In the figure: the heat exchange tube comprises a shell 1, a tube plate 2, a refrigerant cover 3, a heat exchange core 4,U type heat exchange tube 41, a plurality of baffle plates 42, a fixing screw 43, a flange plate 5, an electrolyte inlet tube 6, an electrolyte outlet tube 7, a semicircular cavity 8, a refrigerant inlet tube 9, a refrigerant return tube 10, a gasket 11, a liquid passing hole 12, a tetrafluoro gasket 13, a reinforcing ring 14, a diffusion plate 15 and a blind hole 16.
Detailed Description
The following detailed description of the utility model refers to the accompanying drawings, which illustrate specific embodiments of the utility model:
as shown in fig. 1, an electrolyte cooling heat exchanger is composed of a heat exchange shell 1, a tube plate 2, a refrigerant cover 3 and a heat exchange core 4. The heat exchange shell 1 is made of plastic materials, preferably fluoroplastic, the heat exchange shell 1 is a horizontal cylindrical shell, one end of the heat exchange shell is closed, the other end of the heat exchange shell is open, a flange 5 is arranged at the open end of the heat exchange shell, the flange 5 is welded on the end face of the heat exchange shell 1 in a plastic welding mode, and the tube plate 2 and the refrigerant cover 3 are sequentially installed on the outer side of the flange 5 from inside to outside. The tube plate 2 and the refrigerant cover 3 are respectively provided with a circle of mounting holes corresponding to the bolt holes of the flange plate, and the tube plate 2, the refrigerant cover 3 and the flange plate 5 are fixed through a plurality of bolts. The heat exchange core 4 is arranged inside the heat exchange shell 1, the end part of the heat exchange core 4 is connected with the tube plate 2, the heat exchange core 5 is internally provided with a refrigerant to form a tube side of the heat exchanger, and a gap between the heat exchange shell 1 and the heat exchange core 4 forms a shell side of the heat exchanger.
An electrolyte inlet pipe 6 and an electrolyte outlet pipe 7 are arranged on the outer side face of the heat exchange shell 1, the electrolyte inlet pipe 6 is close to one side of the flange plate 5, the electrolyte outlet pipe 7 is close to one side of the closed end of the heat exchange shell 1, the electrolyte inlet pipe 6 and the electrolyte outlet pipe 7 are welded on the outer side of the heat exchange shell 1 in a plastic welding mode and are communicated with the shell side of the heat exchange shell 1, electrolyte enters the shell side through the electrolyte inlet pipe 6 to exchange heat with the heat exchange core 4, and the electrolyte after heat exchange and temperature reduction is output through the electrolyte outlet pipe 7.
As shown in fig. 2-3, a pair of mutually independent semicircular cavities 8 are arranged on one side of the refrigerant cover 3 facing the flange plate 5, the pair of semicircular cavities 8 are distributed up and down, a refrigerant liquid inlet pipe 9 and a refrigerant liquid return pipe 10 are arranged on one side of the refrigerant cover 3 far away from the flange plate 5, the refrigerant liquid inlet pipe 9 is communicated with the semicircular cavity below, and the refrigerant liquid return pipe 10 is communicated with the semicircular cavity above. The tube plate 2 is made of plastic, the tube plate 2 is tightly attached to the refrigerant cover 3, a gasket 11 is arranged between the tube plate 2 and the refrigerant cover 3, at least two connecting holes corresponding to the bolt holes of the flange plate are arranged on the outer ring of the gasket 11, through holes corresponding to a pair of semicircular cavities are formed in the gasket 11, sealing is further formed through the gasket 11, and the pair of semicircular cavities 8 are separated. The tube plate 2 and the pair of semicircular cavities 8 are respectively provided with uniformly distributed liquid passing holes 12 at the corresponding positions.
As shown in fig. 4, the heat exchange core 4 is composed of a U-shaped heat exchange tube 41, a plurality of baffles 42, and a plurality of parallel fixing screws 43. The U-shaped heat exchange tube 41 is a titanium alloy heat exchange tube, corrosion resistance is guaranteed, a refrigerant liquid inlet end of the U-shaped heat exchange tube 41 passes through the liquid passing hole 12 on the tube plate 2 or is communicated with the liquid passing hole 12 on the tube plate 2, so that communication with the corresponding semicircular cavity 8 is realized, a refrigerant enters the semicircular cavity below through the refrigerant liquid inlet tube 9, enters the U-shaped heat exchange tube 41 after being separated by the liquid passing hole 12 of the tube plate 2, and the refrigerant after heat exchange is discharged from the U-shaped heat exchange tube 41, enters the semicircular cavity above through the liquid passing hole 12 on the tube plate 2 and is discharged from the refrigerant liquid return tube 10 to the cooling circulation in the refrigerating system. In order to avoid uneven distribution and impact caused by too high speed of the refrigerant entering the U-shaped heat exchange tube 41, the flow dispersing plate 15 is arranged in the semicircular cavity below, the flow dispersing plate 15 corresponds to the cross section of the semicircular cavity below, and uniformly distributed flow dispersing holes are arranged on the flow dispersing plate 15.
The fixed screw 43 is a plastic screw, and one end of the fixed screw 43 is fixedly connected with the blind hole 16 on the tube plate 2 through external threads; the baffle plate 42 is a circular plastic plate corresponding to the internal section of the heat exchange shell, the bottom or the top of the baffle plate 42 is cut off to form a through flow port, and the cut-off part is less than half, and generally one third, of the sectional area of the heat exchange shell. The baffle plates 42 are uniformly distributed in the heat exchange shell along the length direction of the heat exchange shell, the cut-off parts are staggered up and down, a broken line channel is formed in the heat exchange shell, the U-shaped heat exchange tube 41 passes through each baffle plate 42, a plurality of parallel fixing screws 43 pass through the edges of the baffle plates 42 to fix the baffle plates 42, in order to prevent the baffle plates 42 from sliding on the fixing screws 43, a positioning sleeve is sleeved on each fixing screw 43, two ends of the positioning sleeve limit opposite side surfaces of two adjacent baffle plates, nuts are arranged at the tail ends of the fixing screws 43, and the end baffle plates 42 are abutted tightly by the nuts to form fixation.
A support plate is installed at the bottom of one end of the U-shaped heat exchange tube 41 far away from the tube plate 2, so that the stability of the structure of the U-shaped heat exchange tube is improved. A tetrafluoro gasket 13 is arranged between the tube plate 2 and the flange plate 5, the center of the tetrafluoro gasket 13 is a through hole corresponding to the end face of the heat exchange shell 1, and a circle of connecting holes corresponding to the flange plate are arranged on the edge of the tetrafluoro gasket 13 close to the outer side, so that the tetrafluoro gasket is convenient to fix through bolts. Because the flange plate 5 is of a plastic structure, in order to prevent deformation during bolt installation, a reinforcing ring 14 is installed on one side of the flange plate 5 far away from the tube plate 2, the reinforcing ring can be made of stainless steel, is corresponding to the size of the flange plate, is correspondingly provided with a bolt hole, and a nut of the bolt is extruded with the end face of the reinforcing ring 14.
Claims (8)
1. The electrolyte cooling heat exchanger comprises a heat exchange shell, wherein one end of the heat exchange shell is closed, the other end of the heat exchange shell is open, a flange is arranged at the open end of the heat exchange shell, a refrigerant cover is arranged on the outer side of the flange, a tube plate is arranged between the refrigerant cover and the flange, and the refrigerant cover, the tube plate and the flange are fixedly connected through a plurality of bolts; the inside of the heat exchange shell is provided with a heat exchange core, the outer side surface of the heat exchange shell is provided with an electrolyte inlet pipe and an electrolyte outlet pipe, the electrolyte inlet pipe is close to one side of the flange, the electrolyte outlet pipe is close to one side of the closed end of the heat exchange shell, and electrolyte enters the heat exchange shell through the electrolyte inlet pipe and is output from the heat exchange shell through the electrolyte outlet pipe; the cooling medium cover is a plastic cover, a pair of mutually independent semicircular cavities are arranged on one side, facing the flange, of the cooling medium cover, the pair of semicircular cavities are distributed up and down, a cooling medium liquid inlet pipe and a cooling medium liquid return pipe are arranged on one side, far away from the flange, of the cooling medium cover, the cooling medium liquid inlet pipe is communicated with the semicircular cavity below, and the cooling medium liquid return pipe is communicated with the semicircular cavity above; a diffusing plate is arranged in the semicircular cavity below, the diffusing plate corresponds to the cross section of the semicircular cavity below, and densely distributed diffusing holes are formed in the diffusing plate; the tube plate is made of plastic, the tube plate is tightly attached to the refrigerant cover, a gasket is arranged between the tube plate and the refrigerant cover, and liquid passing holes which are uniformly distributed are respectively arranged at the positions of the tube plate corresponding to the pair of semicircular cavities; the heat exchange core body comprises a U-shaped heat exchange tube, a plurality of baffle plates and a plurality of parallel fixing screws, the U-shaped heat exchange tube is a titanium alloy heat exchange tube, a refrigerant liquid inlet end of the U-shaped heat exchange tube passes through a liquid passing hole on the tube plate to be communicated with a corresponding semicircular cavity, a refrigerant enters the U-shaped heat exchange tube through a refrigerant liquid inlet tube, and electrolyte after heat exchange in the U-shaped heat exchange tube returns to the refrigerating unit through a refrigerant liquid return tube.
2. The electrolyte cooling heat exchanger according to claim 1, wherein the fixing screw is a plastic screw, and one end of the fixing screw is fixedly connected with the blind hole on the tube plate through an external thread; the U-shaped heat exchange tubes penetrate through the baffle plates, and a plurality of parallel fixing screws penetrate through the edges of the baffle plates to fix the baffle plates.
3. An electrolyte cooling heat exchanger according to claim 2 wherein the baffle is a circular plastic plate corresponding to the internal cross section of the heat exchange housing, the bottom or top of the baffle is truncated to form a through-flow port, and the truncated portion is less than half the cross section of the heat exchange housing.
4. An electrolyte cooled heat exchanger according to claim 2 wherein each of said set screws is sleeved with a locating sleeve, the ends of said locating sleeve being located on opposite sides of adjacent baffles.
5. The electrolyte cooling heat exchanger according to claim 1, wherein the outer ring of the gasket is provided with at least two connecting holes corresponding to the bolt holes of the flange, and the gasket is provided with through holes corresponding to the pair of semicircular chambers.
6. The electrolyte cooling heat exchanger according to claim 1, wherein a sealing ring is installed between the tube plate and the flange plate, a reinforcing ring is installed on one side of the flange plate away from the tube plate, and the reinforcing ring is fixedly connected with the flange plate, the tube plate and the refrigerant cover through bolts.
7. The electrolyte cooling heat exchanger according to claim 6, wherein the sealing ring is a tetrafluoro gasket, the center of the tetrafluoro gasket is a through hole corresponding to the end face of the heat exchange shell, and a circle of screw holes corresponding to the flange are formed on the outer edge of the tetrafluoro gasket.
8. The electrolyte cooling heat exchanger of claim 1, wherein the electrolyte inlet pipe and the electrolyte outlet pipe are plastic pipes, and are connected with the heat exchange shell by plastic welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322034177.0U CN220304338U (en) | 2023-07-31 | 2023-07-31 | Electrolyte cooling heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322034177.0U CN220304338U (en) | 2023-07-31 | 2023-07-31 | Electrolyte cooling heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220304338U true CN220304338U (en) | 2024-01-05 |
Family
ID=89373982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322034177.0U Active CN220304338U (en) | 2023-07-31 | 2023-07-31 | Electrolyte cooling heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220304338U (en) |
-
2023
- 2023-07-31 CN CN202322034177.0U patent/CN220304338U/en active Active
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