CN220136116U - Electrolyte heat exchange system of energy storage battery pack - Google Patents
Electrolyte heat exchange system of energy storage battery pack Download PDFInfo
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- CN220136116U CN220136116U CN202321095195.3U CN202321095195U CN220136116U CN 220136116 U CN220136116 U CN 220136116U CN 202321095195 U CN202321095195 U CN 202321095195U CN 220136116 U CN220136116 U CN 220136116U
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- heat exchange
- electrolyte
- tank
- energy storage
- storage battery
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 91
- 238000004146 energy storage Methods 0.000 title claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 45
- 239000007788 liquid Substances 0.000 claims description 35
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 9
- 239000006096 absorbing agent Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 229940021013 electrolyte solution Drugs 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
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- Hybrid Cells (AREA)
Abstract
The utility model discloses an electrolyte heat exchange system of an energy storage battery pack, which belongs to the technical field of electrolyte heat exchange and comprises the following components: the device comprises a heat exchange tank, a stirring mechanism and a supply mechanism, wherein a heat exchange cavity for storing heat exchange media is formed in the heat exchange tank, an inlet and an outlet which are communicated with the heat exchange cavity are respectively formed at two ends of the heat exchange tank, two heat exchange pipes for respectively conveying positive electrolyte and negative electrolyte are arranged in the heat exchange cavity, and inlets and outlets of the two heat exchange pipes are respectively communicated with the inlet and the outlet of the positive electrolyte tank and the negative electrolyte tank; the stirring mechanism comprises a driving piece and a stirring piece, the stirring piece is internally provided with a heat exchange cavity, and the driving piece is connected with the stirring piece; the inlet and the outlet of the supply mechanism are respectively communicated with the outlet and the inlet; the device is convenient to heat exchange and control the temperature of the positive electrolyte and the negative electrolyte simultaneously, avoids the mixing of the positive electrolyte and the negative electrolyte in the heat exchange process, and has good heat exchange effect.
Description
Technical Field
The utility model relates to the technical field of electrolyte heat exchange, in particular to an electrolyte heat exchange system of an energy storage battery pack.
Background
The flow battery system is composed of a battery, electrolyte, an electrolyte storage unit, a pipeline conveying system, a heat exchanger, a BMS (battery management system) and the like. Due to the characteristics of flexible configuration, long cycle life, safety, environmental protection and the like, the method is widely applied to the fields of wind-solar complementation, peak clipping and valley filling, intelligent micro-grid, emergency power supply and the like. In practical application, as charge and discharge are carried out, the temperature of the electrolyte is continuously increased, the performance of the electrolyte and the battery is greatly affected by temperature factors, and the electrolyte is precipitated and crystallized due to the fact that the temperature of the electrolyte is too high; in cold areas, the electrolyte may crystallize due to low temperature. These problems can lead to dramatic degradation of battery performance until failure. Therefore, it is very critical to effectively control the temperature of the flow battery system, while the electrolyte is used as a key material, is also a charged substance, circulates in the system, and is critical to the stable operation of the system.
The utility model discloses a CN105428680B provides a vanadium battery electrolyte storage device, it includes negative pole electrolyte liquid storage pot, anodal electrolyte liquid storage pot, heat absorber and heating device etc. when using, it need utilize heat absorber and heating device to carry out heat transfer to the inside anodal electrolyte of negative pole electrolyte liquid storage pot and anodal electrolyte liquid storage pot and negative pole electrolyte and heat sink, when the electrolyte reserves is great, only is difficult to realize the temperature control to electrolyte at the internal outside heat absorber of jar or heating device, its heat transfer effect is relatively poor.
Disclosure of Invention
The utility model aims to overcome the technical defects, and provides an electrolyte heat exchange system of an energy storage battery pack, which solves the technical problems in the prior art.
In order to achieve the technical purpose, the technical scheme of the utility model provides an electrolyte heat exchange system of an energy storage battery pack, which comprises the following components:
the heat exchange tank is internally provided with a heat exchange cavity for storing heat exchange media, two ends of the heat exchange tank are respectively provided with an inlet and an outlet which are communicated with the heat exchange cavity, two heat exchange pipes for respectively conveying positive electrolyte and negative electrolyte are arranged in the heat exchange cavity, and the inlets and the outlets of the two heat exchange pipes are respectively communicated with the inlet and the outlet of the positive electrolyte tank and the negative electrolyte tank;
the stirring mechanism comprises a driving piece and a stirring piece, the stirring piece is internally provided with a heat exchange cavity, and the driving piece is connected with the stirring piece and used for driving the stirring piece to rotate so as to stir a heat exchange medium;
the inlet and the outlet of the supply mechanism are respectively communicated with the outlet and the inlet so as to convey the heat medium or the cold medium into the heat exchange cavity, so that the heat exchange medium in the heat exchange cavity is at a set temperature.
In some embodiments, both heat exchange tubes are helically wound from one end of a heat exchange tank to the other end of the heat exchange tank.
In some embodiments, the helical axes of the two heat exchange tubes are intertwined and parallel.
In some embodiments, the outer walls of the two heat exchange tubes are connected in sequence.
In some embodiments, one of the heat exchange tubes is sleeved outside of the other heat exchange tube.
In some embodiments, the stirring member is disposed inside the two heat exchange tubes.
In some embodiments, the electrolyte heat exchange system of the energy storage battery pack further comprises two first water pumps, wherein the water inlets of the first water pumps are respectively communicated with one end of each heat exchange tube through first water pipes, the water outlets of the first water pumps are respectively communicated with the water inlet and the water outlet of the positive electrode electrolyte liquid tank and the negative electrode electrolyte liquid tank, and the other ends of the heat exchange tubes protrude out of the heat exchange tanks.
In some embodiments, the stirring member comprises a central rod and a plurality of stirring assemblies, the central rod is vertically arranged in the heat exchange cavity, and each stirring assembly is arranged around the outer peripheral surface of the central rod and comprises stirring rods which are arranged along the length direction of the central rod and are connected with the central rod.
In some embodiments, the drive member comprises a motor, the drive shaft of which is coaxially connected to the central rod.
In some embodiments, the supply mechanism comprises a water chiller, wherein the liquid outlet pipeline of the water chiller is connected with the top end of the heat exchange tank through a first pipeline, and the liquid return pipeline of the water chiller is connected with the bottom end of the heat exchange tank through a second pipeline.
Compared with the prior art, the utility model has the beneficial effects that: through the heat exchange tank, the heat exchange pipe and the stirring mechanism matched with the heat exchange pipe, the positive and negative electrolyte is conveyed respectively, the positive and negative electrolyte can be prevented from being mixed during heat exchange, and the heat exchange of the positive and negative electrolyte is realized during conveying, so that the electrolyte can realize continuous heat exchange in the flowing process, the overhigh or overlow temperature of a galvanic pile is avoided, in the heat exchange process, the stirring mechanism is used for stirring a heat exchange medium, and the inconsistent temperature of each region caused by heat exchange of the heat exchange medium is avoided, so that the device can conveniently and simultaneously perform heat exchange and temperature control on the positive and negative electrolyte through the arrangement of one heat exchange tank, and the heat exchange effect is good;
through the supply mechanism arranged, the heat medium or the cold medium can be conveyed into the heat exchange cavity, so that the temperature of the heat exchange medium in the heat exchange tank can be controlled conveniently.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of an electrolyte heat exchange system of an energy storage battery pack according to the present utility model;
FIG. 2 is a schematic cross-sectional front view of a heat exchange tube installation of the electrolyte heat exchange system of the energy storage battery of FIG. 1;
FIG. 3 is a schematic cross-sectional front view of the agitation mechanism installation of the electrolyte heat exchange system of the energy storage battery of FIG. 1;
FIG. 4 is a schematic perspective view of a heat exchange tube of the electrolyte heat exchange system of the energy storage battery of FIG. 1;
fig. 5 is a schematic structural diagram of a water chiller of the electrolyte heat exchange system of the energy storage battery of fig. 1.
In the figure:
1. a heat exchange tank; 11. a heat exchange tube; 12. a first water pump; 13. a first water pipe;
2. a stirring mechanism; 21. a driving member; 211. a motor; 22. an agitating member; 221. a central rod; 222. a stirring rod;
3. a supply mechanism; 31. a water chiller; 32. a second water pump; 33. a first pipeline; 34. and a second pipeline.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 3, the present utility model provides an electrolyte heat exchange system of an energy storage battery pack, comprising: a heat exchange tank 1, a stirring mechanism 2 and a supply mechanism 3.
The inside of the heat exchange tank 1 is provided with a heat exchange cavity for storing heat exchange media, two ends of the heat exchange tank 1 are respectively provided with an inlet and an outlet which are communicated with the heat exchange cavity, two heat exchange pipes 11 for respectively conveying positive electrolyte and negative electrolyte are arranged in the heat exchange cavity, and the inlets and the outlets of the two heat exchange pipes 11 are respectively communicated with the inlet and the outlet of the positive electrolyte tank and the negative electrolyte tank.
The stirring mechanism 2 comprises a driving piece 21 and a stirring piece 22, wherein the stirring piece 22 is arranged in the heat exchange cavity, and the driving piece 21 is connected with the stirring piece 22 so as to drive the stirring piece 22 to rotate to stir the heat exchange medium.
The inlet and the outlet of the supply mechanism 3 are respectively communicated with the outlet and the inlet so as to convey the heat medium or the cold medium into the heat exchange cavity, so that the heat exchange medium in the heat exchange cavity is at a set temperature.
In the device, two ends of two heat exchange pipes 11 are respectively communicated with a liquid inlet and a liquid outlet of an anode electrolyte tank and a liquid inlet and a liquid outlet of a cathode electrolyte tank in a one-to-one correspondence manner, and the heat exchange pipes 11 are arranged in a heat exchange cavity, so that positive and negative electrolyte solutions can be respectively conveyed to avoid mixing during heat exchange, and the electrolyte solution can be subjected to heat exchange with a heat exchange medium during conveying to the heat exchange cavity, so that the temperature of a galvanic pile is prevented from being too high or too low; in the heat exchange process, the stirring piece 22 is driven to rotate by the driving piece 21 to stir the heat exchange medium in the heat exchange cavity after heat exchange, so that inconsistent temperature of each area after heat exchange in the heat exchange cavity is avoided, and the heat exchange effect of the electrolyte is further improved; by means of the supply means 3, a heating medium or a cooling medium can be fed into the heat exchange chamber in order to control the temperature of the heat exchange medium in the heat exchange tank 1.
Further, the heat exchange medium may be a liquid or a gas.
As shown in fig. 1 and 2, in some embodiments, the electrolyte heat exchange system of the energy storage battery pack further includes two first water pumps 12, the first water pumps 12 are used for generating acting forces for respectively and circularly conveying the electrolyte in the two heat exchange tubes 11 to the inside of the positive and negative electrolyte tanks, water inlets of the first water pumps 12 are respectively communicated with one ends of the heat exchange tubes 11 through first water pipes 13, water outlets of the first water pumps 12 are respectively communicated with the liquid inlets and the liquid outlets of the positive and negative electrolyte tanks, and the other ends of the heat exchange tubes 11 protrude out of the heat exchange tank 1.
Further, a temperature sensor is disposed in the heat exchange cavity to monitor the temperature of the medium therein, and the temperature sensor is electrically connected with the heating device and the refrigerating device in the water chiller 31 through a control system.
As shown in fig. 2 and 4, in some embodiments, in order to increase the time for heat exchange between the heat exchange tubes 11 and the heat exchange medium, two heat exchange tubes 11 are arranged to be spirally wound from one end of the heat exchange tank 1 to the other end of the heat exchange tank 1, the spiral axes of the two heat exchange tubes 11 are mutually wound and parallel, the heat exchange tubes 11 are arranged at intervals with the inner wall of the heat exchange tank 1, and two ends of the heat exchange tubes 11 are fixedly connected with the heat exchange tank 1.
Further, in some embodiments, to improve the stability of the two heat exchange tubes 11, the outer walls of the two heat exchange tubes 11 are fixedly connected in sequence.
Further, in other embodiments, one heat exchange tube 11 may be sleeved outside the other heat exchange tube 11, so that the two heat exchange tubes 11 are arranged at intervals, which is beneficial to improving the heat exchange effect.
As shown in fig. 3, in some embodiments, the stirring member 22 includes a central rod 221 and a plurality of stirring assemblies, the central rod 221 and the plurality of stirring assemblies are disposed inside the two heat exchange tubes 11, the central rod 221 is vertically disposed in the heat exchange cavity, one end of the central rod 221 is rotatably connected with the heat exchange tank 1 through a bearing, and each stirring assembly is disposed around the outer circumferential surface of the central rod 221 and includes a stirring rod 222 disposed along the length direction of the central rod 221 and fixedly connected with the central rod 221.
Further, in some embodiments, the driving member 21 includes a motor 211, and a driving shaft of the motor 211 is fixedly connected to the center rod 221 coaxially.
When the heat exchange device is used, the motor 211 can drive the central rod 221 to rotate so as to drive each stirring rod 222 to stir at the inner sides of the two heat exchange tubes 11, and the heat exchange medium at the inner sides and the outer sides of the heat exchange tubes 11 can be fully mixed by stirring at the inner sides of the heat exchange tubes 11, and meanwhile, the heat exchange medium newly added through the supply mechanism 3 can be stirred and mixed with the heat exchange medium in the heat exchange tank 1, so that the centralized control effect on the temperature of the electrolyte and the heat exchange effect are further improved.
As shown in fig. 5, in some embodiments, the supply mechanism 3 includes a water chiller 31, the water chiller 31 has a refrigeration mode and a heating mode, so as to facilitate temperature control of heat exchange liquid, a liquid outlet pipeline and a liquid inlet pipeline of the water chiller 31 are both provided with a second water pump 32, the liquid outlet pipeline is connected with the top end of the heat exchange tank 1 through a first pipeline 33, so as to supply heat exchange liquid to the heat exchange tank 1, a liquid return pipeline of the water chiller 31 is connected with the bottom end of the heat exchange tank 1 through a second pipeline 34, so as to realize heat exchange liquid in the heat exchange tank 1 to be pumped back, and the water circulation and transportation are realized through the second water pump 32, which needs to be noted that the water chiller 31 is a prior art and is widely applied in the refrigeration industry, and can refer to the working principle thereof.
Further, the supply mechanism 3 may also be an air cooling system, which includes a fan and a semiconductor cooling plate or heating plate, where the heat exchange medium is gas, and the air after cooling or heating is conveyed to the heat exchange cavity by the fan to realize heat exchange with the electrolyte.
Working principle: when the heat exchange device is used, the inlets and outlets of the two heat exchange tubes 11 are respectively communicated with the liquid inlet and the liquid outlet of the positive electrolyte tank and the negative electrolyte tank in a one-to-one correspondence manner, the liquid outlet pipeline of the water chilling unit 31 is connected with the top end of the heat exchange tank 1 through the first pipeline 33, the liquid return pipeline is connected with the bottom end of the heat exchange tank 1 through the second pipeline 34, the heat exchange liquid with set temperature is conveyed to the top end of the heat exchange tank 1 through the first pipeline 33 by utilizing the second water pump 32 during use, the heat exchange liquid subjected to heat exchange is pumped back at the bottom end of the heat exchange tank 1, the circulation supply of the heat exchange liquid is realized, the positive electrolyte liquid and the negative electrolyte liquid are respectively flowed through the two heat exchange tubes 11 to be discharged to the positive electrolyte tank and the negative electrolyte tank after heat exchange with the heat exchange liquid in the heat exchange cavity, meanwhile, the motor 211 drives the center rod 221 and the stirring rod 222 to rotate to stir the heat exchange liquid, and the temperature of each region is kept consistent after heat exchange medium is subjected to heat exchange, and the heat exchange effect is improved.
According to the utility model, through the heat exchange tank 1, the heat exchange pipe 11 and the stirring mechanism 2 which are matched, the heat exchange pipe 11 is utilized to realize the separate transportation of positive and negative electrolyte, the positive and negative electrolyte can be prevented from being mixed during heat exchange, and the heat exchange of the positive and negative electrolyte is realized during transportation, so that the electrolyte can realize continuous heat exchange in the flowing process, the temperature of a galvanic pile is prevented from being too high or too low, in the heat exchange process, the stirring mechanism 2 is utilized to stir the heat exchange medium, the temperature of each area is prevented from being inconsistent after the heat exchange medium passes through the heat exchange, and meanwhile, the heat exchange medium supplied by the supply mechanism 3 can be quickly mixed with the heat exchange medium in the heat exchange tank 1, so that the device can conveniently and simultaneously perform heat exchange and temperature control on the positive and negative electrolyte, has good heat exchange effect, and is beneficial to reducing the production cost compared with the conventional equipment by designing a plurality of heat exchange tanks 1;
by means of the supply means 3, a heating medium or a cooling medium can be fed into the heat exchange chamber in order to control the temperature of the heat exchange medium in the heat exchange tank 1.
The above-described embodiments of the present utility model do not limit the scope of the present utility model. Any other corresponding changes and modifications made in accordance with the technical idea of the present utility model shall be included in the scope of the claims of the present utility model.
Claims (10)
1. An electrolyte heat exchange system for an energy storage battery, comprising:
the heat exchange tank is internally provided with a heat exchange cavity for storing heat exchange media, two ends of the heat exchange tank are respectively provided with an inlet and an outlet which are communicated with the heat exchange cavity, two heat exchange pipes for respectively conveying positive electrolyte and negative electrolyte are arranged in the heat exchange cavity, and the inlets and the outlets of the two heat exchange pipes are respectively communicated with the inlet and the outlet of the positive electrolyte tank and the negative electrolyte tank;
the stirring mechanism comprises a driving piece and a stirring piece, the stirring piece is arranged in the heat exchange cavity, and the driving piece is connected with the stirring piece and used for driving the stirring piece to rotate so as to stir the heat exchange medium;
and the inlet and the outlet of the supply mechanism are respectively communicated with the outlet and the inlet so as to convey the heat medium or the cold medium into the heat exchange cavity, so that the heat exchange medium in the heat exchange cavity is at a set temperature.
2. The electrolyte heat exchange system of an energy storage battery of claim 1 wherein both of the heat exchange tubes are helically coiled from one end of the heat exchange tank to the other end of the heat exchange tank.
3. The electrolyte heat exchange system of an energy storage battery of claim 2 wherein the helical axes of the two heat exchange tubes are intertwined and parallel.
4. The electrolyte heat exchange system of an energy storage battery pack according to claim 3, wherein the outer walls of the two heat exchange tubes are connected in sequence.
5. The electrolyte heat exchange system of an energy storage battery of claim 2 wherein one of said heat exchange tubes is sleeved outside of the other of said heat exchange tubes.
6. The electrolyte heat exchange system of an energy storage battery of claim 2 wherein said agitation members are positioned inside two of said heat exchange tubes.
7. The electrolyte heat exchange system of an energy storage battery pack according to claim 1, further comprising two first water pumps, wherein the water inlet of each first water pump is respectively communicated with one end of each heat exchange tube through a first water pipe, the water outlet of each first water pump is respectively communicated with the water inlet and the water outlet of the positive electrode electrolyte tank and the negative electrode electrolyte tank, and the other end of each heat exchange tube protrudes out of the heat exchange tank.
8. The electrolyte heat exchange system of an energy storage battery pack according to claim 1, wherein the stirring member comprises a central rod and a plurality of stirring assemblies, the central rod is vertically arranged in the heat exchange cavity, and each stirring assembly is arranged around the outer peripheral surface of the central rod and comprises a stirring rod arranged along the length direction of the central rod and connected with the central rod.
9. The electrolyte heat exchange system of an energy storage battery of claim 8, wherein the drive member comprises a motor, a drive shaft of the motor being coaxially coupled to the central rod.
10. The electrolyte heat exchange system of an energy storage battery pack according to claim 1, wherein the supply mechanism comprises a water chilling unit, a liquid outlet pipeline of the water chilling unit is connected with the top end of the heat exchange tank through a first pipeline, and a liquid return pipeline of the water chilling unit is connected with the bottom end of the heat exchange tank through a second pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321095195.3U CN220136116U (en) | 2023-05-04 | 2023-05-04 | Electrolyte heat exchange system of energy storage battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321095195.3U CN220136116U (en) | 2023-05-04 | 2023-05-04 | Electrolyte heat exchange system of energy storage battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220136116U true CN220136116U (en) | 2023-12-05 |
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ID=88957273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321095195.3U Active CN220136116U (en) | 2023-05-04 | 2023-05-04 | Electrolyte heat exchange system of energy storage battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220136116U (en) |
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2023
- 2023-05-04 CN CN202321095195.3U patent/CN220136116U/en active Active
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