CN221176392U - Phase-change cold-storage type battery energy storage cabinet temperature control system - Google Patents
Phase-change cold-storage type battery energy storage cabinet temperature control system Download PDFInfo
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- CN221176392U CN221176392U CN202323166753.3U CN202323166753U CN221176392U CN 221176392 U CN221176392 U CN 221176392U CN 202323166753 U CN202323166753 U CN 202323166753U CN 221176392 U CN221176392 U CN 221176392U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 128
- 238000009825 accumulation Methods 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 230000007704 transition Effects 0.000 claims 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052744 lithium Inorganic materials 0.000 abstract description 8
- 238000007599 discharging Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The phase-change cold accumulation type battery energy storage cabinet temperature control system comprises a phase-change cold accumulation module, a refrigerating unit and a battery energy storage cabinet, wherein the outlet end of the phase-change cold accumulation module is connected with a second water supply pipe through a first electric three-way valve, the second water supply pipe is connected with a third water supply pipe and a fourth water supply pipe, the third water supply pipe is connected with a battery energy storage cabinet liquid cooling pipeline, the battery energy storage cabinet liquid cooling pipeline is connected with a water return pipeline, the fourth water supply pipe is connected with a water return pipeline, the water return pipeline is connected with the refrigerating unit, and the refrigerating unit is connected with a sixth water supply pipe; the inlet end of the phase change cold accumulation module is connected with a fifth water supply pipe, and the fifth water supply pipe is connected with a second water supply pipe and a sixth water supply pipe through a second electric three-way valve; the water return pipeline is provided with a circulating water pump. The utility model overcomes the defects of the prior art, can effectively and quickly control the temperature rise of the lithium battery in the charging and discharging peak period and reduce the configuration power of the refrigerator; and the cold accumulation module can be used for buffer adjustment, so that the refrigerator can be maintained in the optimal operation condition, and the energy efficiency of the refrigerator is improved.
Description
Technical Field
The utility model relates to the technical field of lithium battery thermal management, in particular to a phase-change cold-storage battery energy storage cabinet temperature control system.
Background
Along with the problem of instability and discontinuity of new energy sources, the energy storage industry is rapidly developed. The lithium battery energy storage accounts for a main part of the novel energy storage industry, and has better working performance only in a proper temperature range, so that the thermal management of the lithium battery is very important. At present, the lithium battery thermal management has two modes of air cooling and liquid cooling, and the air cooling structure is simple and the cost is low; the liquid cooling efficiency is high, and the energy storage density is high; the liquid cooling mode is rapidly increasing year by year.
The traditional liquid cooling mode is generally a direct cooling mode of a refrigerator, and the existing scheme has the following problems: 1) The configuration power of the refrigerator needs to meet the heating peak power of the battery, a refrigerator with larger power is needed, the equipment cost is higher, and the distribution capacity of the corresponding refrigerator is also larger; 2) The heat productivity of the battery generally fluctuates, and when the heat productivity of the battery is low, the refrigerator runs at a low speed, and the energy efficiency is low. 3) When the battery is discharged, the refrigerator often needs to consume the electric quantity of the battery for refrigeration, and the effective output electric quantity of the battery is reduced.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a phase-change cold-storage battery energy storage cabinet temperature control system, which overcomes the defects of the prior art, has reasonable design, and can effectively and rapidly control the temperature rise in the charging and discharging peak period of a lithium battery to reduce the configuration power of a refrigerator; when the heat productivity of the battery changes, the cold accumulation module can be used for buffer adjustment, so that the refrigerator can be maintained under the optimal operation condition, and the energy efficiency of the refrigerator can be improved.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
The phase-change cold accumulation type battery energy storage cabinet temperature control system comprises a phase-change cold accumulation module, a refrigerating unit and a battery energy storage cabinet, wherein the outlet end of the phase-change cold accumulation module is connected with one end of a first water supply pipe, the other end of the first water supply pipe is connected with a second water supply pipe, one end of the second water supply pipe is respectively connected with one end of a third water supply pipe and one end of a fourth water supply pipe through a first electric three-way valve, the other end of the third water supply pipe is connected with the inlet end of a battery energy storage cabinet liquid cooling pipeline, the outlet end of the battery energy storage cabinet liquid cooling pipeline is connected with one end of a water return pipeline, the other end of the fourth water supply pipe is connected with the water return pipeline, and the other end of the water return pipeline is connected with the inlet end of the refrigerating unit;
The inlet end of the phase-change cold accumulation module is connected with one end of a fifth water supply pipe, and the other end of the fifth water supply pipe is respectively connected with the other end of the second water supply pipe and the other end of the sixth water supply pipe through a second electric three-way valve; and the water return pipeline is fixedly provided with a circulating water pump.
Preferably, the inlet end and the outlet end of the phase change cold accumulation module, the inlet end and the outlet end of the refrigerating unit and the inlet end and the outlet end of the liquid cooling pipeline of the battery energy storage cabinet are respectively provided with a control valve.
Preferably, the water return pipeline is provided with a Y-shaped filter at a position between the circulating water pump and the fourth water supply pipe.
Preferably, check valves are arranged on the position, between the circulating water pump and the refrigerating unit, of the water return pipeline and on the sixth water supply pipe.
The utility model provides a temperature control system of a phase-change cold-storage battery energy storage cabinet. The beneficial effects are as follows: in the electricity release stage, the phase change cold storage module can be preferably used for cooling the battery energy storage cabinet, and the insufficient part is supplemented by the refrigerating unit, so that the refrigerating machine can be maintained in the optimal operation condition, and the energy efficiency of the refrigerating machine is improved. And then the temperature rise in the charging and discharging peak period of the lithium battery is effectively and quickly controlled to reduce the configuration power of the refrigerating unit. The phase change cold accumulation module is used for buffer adjustment, so that the optimal operation condition of the refrigerating unit can be effectively maintained, and the energy efficiency of the refrigerating unit is improved. And the circulating water can directly store cold for the phase-change cold storage module after being cooled by the refrigerating unit in a period of low electricity consumption. Thereby reducing the battery power consumed by the refrigeration unit during the discharge phase.
Drawings
In order to more clearly illustrate the utility model or the technical solutions in the prior art, the drawings used in the description of the prior art will be briefly described below.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a structure of a refrigerating unit in the present utility model when the refrigerating unit is a phase change cold storage module for cold storage;
FIG. 3 is a schematic diagram of a refrigerating unit for refrigerating a battery energy storage cabinet according to the present utility model;
The reference numerals in the figures illustrate:
1. A phase change cold accumulation module; 2. a refrigerating unit; 3. a battery energy storage cabinet; 4. a first water supply pipe; 5. a second water supply pipe; 6. a first electric three-way valve; 7. a third water supply pipe; 8. a fourth water supply pipe; 9. a water return line; 10. a fifth water supply pipe; 11. a second electric three-way valve; 12. a sixth water supply pipe; 13. a circulating water pump; 14. a Y-type filter; 15. a check valve; 16. a water inlet pipeline; 17. and a water outlet pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings.
1-3, A phase-change cold accumulation type battery energy storage cabinet temperature control system comprises a phase-change cold accumulation module 1, a refrigerating unit 2 and a battery energy storage cabinet 3, wherein the outlet end of the phase-change cold accumulation module 1 is connected with one end of a first water supply pipe 4, the other end of the first water supply pipe 4 is connected with a second water supply pipe 5, one end of the second water supply pipe 5 is respectively connected with one end of a third water supply pipe 7 and one end of a fourth water supply pipe 8 through a first electric three-way valve 6, the other end of the third water supply pipe 7 is connected with the inlet end of a liquid cooling pipeline of the battery energy storage cabinet 3, the outlet end of the liquid cooling pipeline of the battery energy storage cabinet 3 is connected with one end of a water return pipeline 9, the other end of the fourth water supply pipe 8 is connected with the inlet end of the refrigerating unit 2, and the outlet end of the refrigerating unit 2 is connected with one end of a sixth water supply pipe 12;
The inlet end of the phase change cold accumulation module 1 is connected with one end of a fifth water supply pipe 10, and the other end of the fifth water supply pipe 10 is respectively connected with the other end of the second water supply pipe 5 and the other end of a sixth water supply pipe 12 through a second electric three-way valve 11; the water return pipeline 9 is fixedly provided with a circulating water pump 13. In this embodiment, the water return pipeline 9 is further provided with a water inlet pipeline 16 and a water outlet pipeline 17, and control valves are respectively arranged in the water inlet pipeline 16 and the water outlet pipeline 17 and are used for supplementing or discharging the circulating water in the circulating pipeline.
Working principle:
In this embodiment, three ports of the first electric three-way valve 6 may be set as an a port, a B port, and a C port, wherein the a port is connected to the second water supply pipe 5, the B port is connected to the third water supply pipe 7, and the C port is connected to the fourth water supply pipe 8; three ports of the second electric three-way valve 11 are set as an X port, a Y port, and a Z port, wherein the X port is connected to the sixth water supply pipe 12, the Y port is connected to the second water supply pipe 5, and the Z port is connected to the fifth water supply pipe 10. In the normal electricity storage stage, the port A of the first electric three-way valve 6 is communicated with the port B, the port X of the second electric three-way valve 11 is communicated with the port Z, so that the refrigerating unit 2 is fully operated, the circulating water pump 13 is started, after the circulating water is refrigerated by the refrigerating unit 2, the circulating water flows into the phase-change cold storage module 1 through the sixth water supply pipe 12 and the fifth water supply pipe 10 to store the cold for the phase-change cold storage module 1, and meanwhile, the circulating water enters the liquid cooling pipeline of the battery energy storage cabinet 3 through the first water supply pipe 4, the second water supply pipe 5 and the third water supply pipe 7 in sequence, so that the temperature of the battery energy storage cabinet 3 can be reduced. Flows through the liquid cooling pipeline of the battery energy storage cabinet 3 and flows into the refrigerating unit 2 again through the water return pipeline 9.
In the electricity release stage (electricity consumption peak stage), the phase change cold storage module 1 can be preferably used for cooling the battery energy storage cabinet 3, and the insufficient part is supplemented by the refrigerating unit 2, so that the optimal operation condition of the refrigerator can be maintained, and the energy efficiency of the refrigerator is improved. And then the temperature rise in the charging and discharging peak period of the lithium battery is effectively and quickly controlled to reduce the configuration power of the refrigerating unit 2. And when the heating value of the battery energy storage cabinet 3 changes, the phase change cold storage module 1 can be used for buffering adjustment, so that the refrigerating unit 2 can be effectively maintained in the optimal operation condition, and the energy efficiency of the refrigerating machine is improved.
In this embodiment, the a port and the C port of the first electric three-way valve 6 are connected, the X port and the Z port of the second electric three-way valve 11 are connected, and the circulating water pump 13 is started again, so that the circulating water is cooled by the refrigerating unit 2 and then is directly stored in the phase-change cold storage module 1. Thereby reducing battery power consumption by the refrigeration unit 2 during the discharge phase.
In addition, when the phase change cold storage module 1 needs to be maintained, the port A and the port B of the first electric three-way valve 6 can be directly communicated, and the port X and the port Y of the second electric three-way valve 11 are communicated, so that circulating water directly flows into the liquid cooling pipeline of the battery energy storage cabinet 3 through the sixth water supply pipe 12, the second water supply pipe 5 and the third water supply pipe 7 in sequence after being cooled by the refrigerating unit 2, and the battery energy storage cabinet 3 can be cooled.
In the second embodiment, as a further preferable mode of the first embodiment, control valves are installed at the inlet and outlet ends of the phase change cold storage module 1, the inlet and outlet ends of the refrigerating unit 2, and the inlet and outlet ends of the liquid cooling pipeline of the battery energy storage cabinet 3. The flow of circulating water of the phase-change cold accumulation module 1, the refrigerating unit 2 and the battery energy storage cabinet 3 can be further effectively controlled through the control valve.
In the third embodiment, as a further preferable mode of the first embodiment, the water return line 9 is provided with a Y-filter 14 at a position between the circulating water pump 13 and the fourth water supply pipe 8. The circulating water can be effectively filtered through the Y-shaped filter 14, so that the damage to the circulating water pump 13 caused by excessive impurities in the circulating water in the use process is avoided.
In the fourth embodiment, as a further preferable mode of the first embodiment, check valves 15 are provided on both the sixth water supply pipe 12 and the return water pipe 9 at a position between the circulating water pump 13 and the refrigeration unit 2. The check valve 15 prevents the circulating water from flowing backward to damage the circulating water pump 13.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (4)
1. The utility model provides a phase transition cold-storage battery energy storage cabinet temperature control system which characterized in that: the phase-change cold accumulation device comprises a phase-change cold accumulation module (1), a refrigerating unit (2) and a battery energy storage cabinet (3), wherein the outlet end of the phase-change cold accumulation module (1) is connected with one end of a first water supply pipe (4), the other end of the first water supply pipe (4) is connected with a second water supply pipe (5), one end of the second water supply pipe (5) is respectively connected with one end of a third water supply pipe (7) and one end of a fourth water supply pipe (8) through a first electric three-way valve (6), the other end of the third water supply pipe (7) is connected with the inlet end of a liquid cooling pipeline of the battery energy storage cabinet (3), the outlet end of the liquid cooling pipeline of the battery energy storage cabinet (3) is connected with one end of a water return pipeline (9), the other end of the fourth water supply pipe (8) is connected with the inlet end of the water return pipeline (9), and the outlet end of the refrigerating unit (2) is connected with one end of a sixth water supply pipe (12);
The inlet end of the phase-change cold accumulation module (1) is connected with one end of a fifth water supply pipe (10), and the other end of the fifth water supply pipe (10) is respectively connected with the other end of the second water supply pipe (5) and the other end of a sixth water supply pipe (12) through a second electric three-way valve (11); and a circulating water pump (13) is fixedly arranged on the water return pipeline (9).
2. The phase-change cold-storage battery energy storage cabinet temperature control system according to claim 1, wherein: control valves are arranged at the inlet end and the outlet end of the phase change cold accumulation module (1), the inlet end and the outlet end of the refrigerating unit (2) and the inlet end and the outlet end of the liquid cooling pipeline of the battery energy storage cabinet (3).
3. The phase-change cold-storage battery energy storage cabinet temperature control system according to claim 1, wherein: the water return pipeline (9) is provided with a Y-shaped filter (14) at a position between the circulating water pump (13) and the fourth water supply pipe (8).
4. The phase-change cold-storage battery energy storage cabinet temperature control system according to claim 1, wherein: check valves (15) are arranged at the positions between the circulating water pump (13) and the refrigerating unit (2) and on the sixth water supply pipe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323166753.3U CN221176392U (en) | 2023-11-23 | 2023-11-23 | Phase-change cold-storage type battery energy storage cabinet temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323166753.3U CN221176392U (en) | 2023-11-23 | 2023-11-23 | Phase-change cold-storage type battery energy storage cabinet temperature control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221176392U true CN221176392U (en) | 2024-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323166753.3U Active CN221176392U (en) | 2023-11-23 | 2023-11-23 | Phase-change cold-storage type battery energy storage cabinet temperature control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221176392U (en) |
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2023
- 2023-11-23 CN CN202323166753.3U patent/CN221176392U/en active Active
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