CN109818105B - Marine power battery pack step thermal management system based on phase change material - Google Patents
Marine power battery pack step thermal management system based on phase change material Download PDFInfo
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- CN109818105B CN109818105B CN201910051562.1A CN201910051562A CN109818105B CN 109818105 B CN109818105 B CN 109818105B CN 201910051562 A CN201910051562 A CN 201910051562A CN 109818105 B CN109818105 B CN 109818105B
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- pipeline
- battery pack
- phase change
- sea water
- heat exchanger
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- 239000012782 phase change material Substances 0.000 title claims abstract description 31
- 239000013535 sea water Substances 0.000 claims abstract description 60
- 238000010612 desalination reaction Methods 0.000 claims abstract description 24
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 238000007493 shaping process Methods 0.000 claims abstract description 15
- 239000013505 freshwater Substances 0.000 claims abstract description 12
- 230000008859 change Effects 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 6
- 238000009835 boiling Methods 0.000 claims description 10
- 239000000839 emulsion Substances 0.000 claims description 3
- 239000003094 microcapsule Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000010248 power generation Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 11
- 239000012267 brine Substances 0.000 description 8
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 8
- 239000003507 refrigerant Substances 0.000 description 7
- 230000007704 transition Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a marine power battery pack cascade thermal management system based on phase change materials, which is characterized by comprising a battery pack, a heat pump system, a heat exchanger, a sea water desalination device and a fresh water tank, wherein a shaping phase change material is arranged in the battery pack, a channel is arranged in the shaping phase change material, functional hot fluid is filled in the channel, the phase change temperature of the functional hot fluid is higher than that of the shaping phase change material, the channel is communicated with the heat exchanger through a pipeline, a peristaltic pump is arranged on the pipeline connecting the heat exchanger and the channel, a sea water pump is connected on the heat exchanger through a pipeline, a sea water pipeline replacement mechanism is arranged among the heat exchanger, the sea water pump and the heat pump system, and the sea water desalination device are connected through a pipeline; the power battery pack has the advantages that the power battery pack can realize step heat management, and has good cooling effect; and the heat generated by the battery pack can be transferred to the seawater at the same time, so that the seawater is subjected to fresh water conversion, and the energy-saving and emission-reducing solar energy power generation system is used for ship navigation and crew life.
Description
Technical Field
The invention relates to cooling of a marine power battery, in particular to a marine power battery pack step thermal management system based on a phase change material.
Background
With the increasingly strict environmental protection requirements and the implementation of pollutant emission control areas, electric ships with unique advantages in aspects of pollutant emission control, vibration noise reduction and the like are rapidly developed. Based on the safety and economical considerations, most of the current newly-manufactured electric ships adopt lithium iron phosphate batteries, and the lithium iron phosphate batteries emit a large amount of heat due to internal resistance, chemical reaction and the like in the charge and discharge process. In addition, electric ships are mostly charged by shore power, so that rapid charging has become mainstream for shortening port leaning time, and rapid discharging is unavoidable due to improvement of ship performance and existence of special working conditions (high wind waves, emergency collision prevention and the like). However, for lithium ion batteries, the heat density of the lithium ion batteries is rapidly increased due to rapid charge and discharge, the temperature of the battery pack is rapidly increased, the temperature difference between batteries is increased, the service life of the batteries is influenced, and even the batteries are out of control, so that safety accidents are caused.
At present, the power battery of the electric ship is cooled in an air cooling mode, but the air cooling is greatly affected by the temperature of the external environment, the heat exchange coefficient is low, the heat dissipation requirement of the high-capacity power battery of the ship cannot be obviously met, meanwhile, the heat dissipation requirement of the power battery is hardly met by the single cooling mode at present due to the improvement of the quick charge and quick discharge requirement in the operation process of the ship.
Disclosure of Invention
The invention aims to solve the technical problem of providing an energy-saving marine power battery pack step thermal management system based on phase change materials, which has a good cooling effect on a battery pack.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a marine power battery group step thermal management system based on phase change material, includes group battery, heat pump system, heat exchanger, sea water desalination device and fresh water cabinet, the group battery in be provided with the design phase change material, the design phase change material in be provided with the passageway, the passageway in pour into and have the functional hot fluid, the phase transition temperature of functional hot fluid be higher than the phase transition temperature of design phase change material, passageway with the heat exchanger between be linked together through the pipeline, connect the heat exchanger with the pipeline of passageway on be provided with peristaltic pump, the heat exchanger on be connected with the sea water pump through the pipeline, the heat exchanger sea water pump with heat pump system three between be provided with sea water pipeline change mechanism, the heat pump system with sea water desalination device be connected through the pipeline, sea water desalination device be connected through the pipeline with fresh water cabinet.
Further, the heat pump system comprises a compressor, a condenser, a throttle valve and an evaporator which are connected in sequence through pipelines, and the condenser is connected with the sea water desalting device through pipelines.
Further, the evaporator is provided with a first air inlet and a first air outlet, the battery pack is provided with an outer shell, the outer shell is provided with a second air inlet and a second air outlet, and the first air outlet is opposite to the second air inlet or communicated with the second air inlet through an air pipe.
Further, the seawater pipeline replacement mechanism comprises a stop valve and a flow regulating valve, the stop valve is respectively connected with the heat exchanger and the seawater pump through pipelines, the seawater pump is connected with the flow regulating valve through pipelines, and the heat exchanger and the flow regulating valve are respectively connected with the condenser through pipelines.
Further, the seawater desalination device is a vacuum boiling type seawater desalination device, and a condensate pump in the vacuum boiling type seawater desalination device is connected with the fresh water cabinet through a pipeline.
Further, the functional thermal fluid is a phase-change emulsion or microcapsule suspension.
Further, the channel is an externally-added pipeline or a channel which is built in the shaping phase-change material.
Compared with the prior art, the invention has the advantages that the power battery pack can realize step heat management, when the temperature of the battery pack is lower than the phase change temperature of the functional hot fluid, the shaping phase change material in the battery pack carries out passive heat management, and meanwhile, cold air generated in the heat pump system carries out active air cooling on the battery pack; when the temperature of the battery pack is higher than the phase change temperature of the functional hot fluid, the functional hot fluid circularly flows, and at the moment, the phase change material, liquid cooling and air cooling of the battery pack are cooperatively cooled, so that the cooling effect is good; and the heat generated by the battery pack can be transferred to the seawater at the same time, so that the seawater is subjected to fresh water conversion, and the device is used for ship navigation and crew life, realizes waste heat utilization and has the effects of energy conservation and emission reduction.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in the figure, the marine power battery pack cascade thermal management system based on phase change materials comprises a battery pack 1, a heat pump system, a heat exchanger 2, a vacuum boiling type sea water desalination device 3 and a fresh water cabinet 4, wherein a shaping phase change material 5 is arranged in the battery pack 1, a channel 51 is arranged in the shaping phase change material 5, the channel 51 is an externally-added pipeline or a self-constructed channel in the shaping phase change material 5, functional thermal fluid is filled in the channel 51, the functional thermal fluid is phase change emulsion or microcapsule suspension, the phase change temperature of the functional thermal fluid is higher than the phase change temperature of the shaping phase change material 5, the channel 51 is communicated with the heat exchanger 2 through a pipeline, a peristaltic pump 6 is arranged on the pipeline connecting the heat exchanger 2 with the channel 51, a sea water pump 7 is connected on the heat exchanger 2 through a pipeline, the heat pump system comprises a compressor 8, a condenser 9, a throttle valve 10 and an evaporator 11 which are sequentially connected through the pipeline, the evaporator 11 is provided with a first air inlet and a first air outlet, the battery pack 1 is provided with an outer shell, the outer shell is provided with a second air inlet and a second air outlet, the first air outlet is opposite to the second air inlet or is communicated with the second air inlet through an air pipe, a seawater pipeline replacement mechanism is arranged among the heat exchanger 2, the seawater pump 7 and the condenser 9 and comprises a stop valve 12 and a flow regulating valve 13, the stop valve 12 is respectively connected with the heat exchanger 2 and the seawater pump 7 through pipelines, the seawater pump 7 is connected with the flow regulating valve 13 through pipelines, the heat exchanger 2 and the flow regulating valve 13 are respectively connected with the condenser 9 through pipelines, the condenser 9 is connected with the vacuum boiling type seawater desalination device 3 through pipelines, a condensate pump 31 in the vacuum boiling type seawater desalination device 3 is connected with the fresh water tank 4 through pipelines, the brine discharge pump 32 in the vacuum boiling type sea water desalination device 3 discharges the brine into the sea.
In the above embodiment, the working process of the step thermal management system is as follows: when the battery pack 1 generates heat, the shaped phase change material 5 contacts with the battery pack 1 to absorb heat emitted by the battery pack 1. When the temperature reaches the phase transition temperature of the shaping phase change material 5, the shaping phase change material 5 undergoes phase transition, a large amount of heat is stored in the form of latent heat, as the temperature of the battery pack 1 is further increased, the functional hot fluid further stores the heat in the form of latent heat, when the temperature of the battery pack 1 is further increased to enable the temperature of the functional hot fluid to exceed the phase transition temperature, the peristaltic pump 6, the stop valve 12 and the sea water pump 7 are opened, the flow regulating valve 13 is closed, the high-temperature functional hot fluid and the low-temperature sea water are subjected to countercurrent heat exchange through the heat exchanger 2, the functional hot fluid transfers the heat to the sea water to release heat and cool and then circulate to the battery pack 1 to absorb heat further, and the sea water absorbs heat and heats up and then enters the condenser 9 in the heat pump system, as the refrigerant of the heat pump system is compressed into high-temperature high-pressure gas through the compressor 8, the high-temperature high-pressure refrigerant transfers the heat to the sea water after absorbing heat from the condenser 9, the sea water temperature is further increased to reach the temperature requirement of vacuum sea water desalination (80-90 ℃) and enters the vacuum boiling sea water desalination device 3 for vaporization, the high-temperature functional hot fluid is subjected to heat condensation, the sea water enters the brine tank 4 through the heat pump 31 for heat absorption and then enters the brine vapor desalination device for desalination, and is discharged into the brine pump 32 after the brine;
If the temperature of the functional hot fluid is lower than the phase transition temperature, the peristaltic pump 6 and the stop valve 12 are closed, the seawater pump 7 and the flow regulating valve 13 are opened, the seawater enters the condenser 9 through the seawater pump 7 and the flow regulating valve 13 to absorb heat, the flow of the seawater is controlled by regulating the flow regulating valve 13, the seawater reaches the temperature requirement of vacuum seawater desalination and enters the vacuum boiling type seawater desalination device 3 to be vaporized, the water vapor is condensed and then enters the fresh water tank 4 through the condensate pump 31, and the strong brine is discharged into the seawater through the brine discharge pump 32.
The heat pump system is always in operation, the refrigerant is compressed into high-temperature high-pressure gas through the compressor 8, the high-temperature high-pressure refrigerant transfers heat to the sea water through the condenser 9, then the refrigerant enters the evaporator 11 through the throttle valve 10, the refrigerant absorbs heat in the evaporator 11, the outside air is conveyed into the battery pack 1 to cool the battery pack 1 by wind after releasing heat and reducing temperature in the evaporator 11, and the refrigerant returns to the compressor 8 after absorbing heat and circulates in sequence.
Claims (4)
1. The marine power battery pack cascade thermal management system based on the phase change material is characterized by comprising a battery pack, a heat pump system, a heat exchanger, a sea water desalination device and a fresh water cabinet, wherein a shaping phase change material is arranged in the battery pack, a channel is arranged in the shaping phase change material, functional hot fluid is filled in the channel, the phase change temperature of the functional hot fluid is higher than that of the shaping phase change material, the channel is communicated with the heat exchanger through a pipeline, a peristaltic pump is arranged on the pipeline connecting the heat exchanger with the channel, the heat exchanger is connected with a sea water pump through a pipeline, the heat pump system comprises a compressor, a condenser, a throttle valve and an evaporator which are sequentially connected through the pipeline, the condenser is connected with the sea water desalination device through the pipeline, and the sea water desalination device is connected with the fresh water cabinet through the pipeline; the evaporator on be provided with first air intake and first air outlet, the group battery on be provided with the shell body, the shell body on be provided with second air intake and second air outlet, first air outlet with the second air intake just to or be linked together through the tuber pipe, the heat exchanger sea water pump with heat pump system three between be provided with sea water pipeline change mechanism, sea water pipeline change mechanism include stop valve and flow control valve, the stop valve pass through the pipeline and be connected with the heat exchanger respectively sea water pump be connected with the flow control valve through the pipeline, heat exchanger with the flow control valve be connected with the condenser through the pipeline respectively.
2. The marine power battery pack step thermal management system based on phase change materials of claim 1, wherein: the seawater desalination device is a vacuum boiling type seawater desalination device, and a condensate pump in the vacuum boiling type seawater desalination device is connected with the fresh water cabinet through a pipeline.
3. The marine power battery pack step thermal management system based on phase change materials of claim 1, wherein: the functional hot fluid is phase-change emulsion or microcapsule suspension.
4. The marine power battery pack step thermal management system based on phase change materials of claim 1, wherein: the channel is an externally-added pipeline or a channel which is built in the shaping phase-change material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910051562.1A CN109818105B (en) | 2019-01-21 | 2019-01-21 | Marine power battery pack step thermal management system based on phase change material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910051562.1A CN109818105B (en) | 2019-01-21 | 2019-01-21 | Marine power battery pack step thermal management system based on phase change material |
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| Publication Number | Publication Date |
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| CN109818105A CN109818105A (en) | 2019-05-28 |
| CN109818105B true CN109818105B (en) | 2024-04-19 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110839980A (en) * | 2019-11-25 | 2020-02-28 | 郑州轻工业大学 | Garment capable of achieving active/passive intelligent temperature adjustment through composite energy storage material |
| US20220325930A1 (en) * | 2021-04-07 | 2022-10-13 | Rheem Manufacturing Company | Battery-integrated heat pump systems and methods of managing battery temperatures |
| CN113809449B (en) * | 2021-08-28 | 2023-09-19 | 西北工业大学 | An active and passive collaborative cooling underwater vehicle battery pack thermal management system |
| CN116014284B (en) * | 2022-12-27 | 2024-11-08 | 吉林大学 | Electric automobile battery composite cooling system and control method thereof |
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