CN116706320A - All-in-one energy storage temperature control system - Google Patents

All-in-one energy storage temperature control system Download PDF

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Publication number
CN116706320A
CN116706320A CN202310676004.0A CN202310676004A CN116706320A CN 116706320 A CN116706320 A CN 116706320A CN 202310676004 A CN202310676004 A CN 202310676004A CN 116706320 A CN116706320 A CN 116706320A
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China
Prior art keywords
condenser
temperature control
control system
heat exchanger
energy storage
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CN202310676004.0A
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Chinese (zh)
Inventor
陶林
谢虹
鞠俊
金长英
费天庠
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Taybo Shanghai Environmental Technology Co Ltd
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Taybo Shanghai Environmental Technology Co Ltd
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Priority to CN202310676004.0A priority Critical patent/CN116706320A/en
Publication of CN116706320A publication Critical patent/CN116706320A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
    • 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
    • Y02E60/14—Thermal energy storage

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The application relates to the field of temperature control systems, and discloses an all-in-one energy storage temperature control system which comprises a compressor, a four-way valve, a condenser, an expansion valve, a plate heat exchanger, a condensing fan and other components, wherein refrigerants form a refrigeration loop, a heat pump loop, an energy-saving cooling branch and a dehumidification branch in different flow directions in the components, and the functions of refrigeration cooling and heat pump heating are realized through the conversion of the four-way valve; the energy-saving cooling branch comprises a first electric control valve and two connecting pipes, the two connecting pipes are respectively connected with the condenser and the plate heat exchanger, and the condenser is positioned above the plate heat exchanger. The application heats or cools the medium in the water cooling system by the heat pump and the refrigeration principle; the energy-saving cooling branch is adopted, so that the temperature control system can still cool the medium in the water cooling system under the condition of not consuming energy; meanwhile, the refrigerant in the refrigeration loop can provide energy for the dehumidification branch, so that the energy consumption of the multi-in-one energy storage temperature control system when the water cooling system regulates and controls the temperature in the box body is obviously reduced.

Description

All-in-one energy storage temperature control system
Technical Field
The application relates to the field of temperature control systems, in particular to an all-in-one energy storage temperature control system.
Background
The energy storage power station has been developed rapidly due to the advantages of small occupied area, strong load adjusting capability, low operation cost and the like.
Currently, an energy storage power station is usually loaded by adopting a container, various components such as a battery pack in the container body can generate a large amount of heat in the operation process of the energy storage power station, and the temperature of the battery pack is required to be maintained in a proper range for charging and discharging the battery pack. In order to control the temperature of the battery pack in the box body, a water cooling system is adopted to heat or cool the temperature of the battery pack.
When the water cooling system is used for heating the battery pack, PTC electric heating is needed to be used for heating a medium in the water cooling system, and the heat medium is used for heating the battery pack; when the water cooling system cools the battery pack, the heat exchanger is required to cool the medium in the water cooling system, and the cold medium cools the battery pack again. Meanwhile, when the weather is hot, the condition that the humidity in the box body is often large exists, and at the moment, dehumidification equipment is needed to dehumidify the interior of the box body.
In conclusion, the energy consumption is higher when the water cooling system is used for regulating and controlling the internal temperature of the box body.
Disclosure of Invention
The application provides an all-in-one energy storage temperature control system for reducing energy consumption when a water cooling system regulates and controls the temperature in a box body.
The application provides an all-in-one energy storage temperature control system which adopts the following technical scheme:
the all-in-one energy storage temperature control system comprises a compressor, a four-way valve, a condenser, an expansion valve, a plate heat exchanger and a condensing fan, wherein the compressor, the four-way valve, the condenser, the expansion valve and the plate heat exchanger are connected, when a refrigerant output by the compressor sequentially passes through the condenser, the expansion valve and the plate heat exchanger through the four-way valve and then flows back to the compressor through the four-way valve, a refrigeration cooling loop is formed, and the condensing fan dissipates heat of the condenser; when the refrigerant output by the compressor sequentially passes through the plate heat exchanger, the expansion valve and the condenser through the four-way valve and then flows back to the compressor through the four-way valve, a heat pump heating loop is formed; the energy-saving cooling branch comprises a first electric control valve and two connecting pipes, the end parts of the two connecting pipes are respectively connected with a condenser and a plate heat exchanger, and the condenser is positioned above the plate heat exchanger; the dehumidification branch is connected with the refrigeration cooling loop in parallel.
By adopting the technical scheme, when the battery pack in the box body is heated, the exhaust end of the compressor discharges high-temperature and high-pressure gaseous refrigerant, the gaseous refrigerant enters the plate heat exchanger and exchanges heat with a medium in the water cooling system, the medium absorbs heat and heats up to become a heat medium, and the heat medium heats the battery pack; when the battery pack in the box body is cooled, the exhaust end of the compressor discharges high-temperature and high-pressure gaseous refrigerant, the gaseous refrigerant is cooled through the condenser, then passes through the expansion valve, finally becomes a low-temperature and low-pressure gas-liquid two-phase state, the low-temperature and low-pressure refrigerant enters the plate heat exchanger and exchanges heat with a medium in the water cooling system, the medium releases heat and is cooled to become a cold medium, and the cold medium cools the battery pack; when the energy storage power station is used in winter and the battery pack needs to be cooled, the first electric control valve is opened, the four-way valve and the expansion valve are closed, the refrigerant in the plate heat exchanger absorbs heat in a medium in the water cooling system and evaporates to be in a gaseous state, the gaseous refrigerant rises to the condenser along the energy-saving cooling branch, the condenser is cooled by an external low-temperature environment, the refrigerant is further converted into a liquid state, and flows back to the plate heat exchanger from the energy-saving cooling branch under the action of gravity and exchanges heat with the medium in the water cooling system, and the cooling medium cools the battery pack; when the interior of the box body needs to be dehumidified, the refrigerant flows into the dehumidification branch from the refrigeration cooling loop, and the dehumidification branch dehumidifies the interior of the box body. The heat pump and refrigeration principle are adopted to heat and cool the medium in the water cooling system, so that the energy consumption of the water cooling system is reduced; the energy-saving cooling branch is adopted, so that the temperature control system can still cool the medium in the water cooling system under the condition of not consuming energy; the refrigerant in the refrigeration cooling loop can provide energy for the dehumidification branch circuit simultaneously, so that the energy consumption of dehumidification is reduced, and the energy consumption of the water cooling system when the temperature in the box body is regulated and controlled is greatly reduced by using the all-in-one energy storage temperature control system.
Preferably, the energy-saving cooling branch is provided with two gravity heat pipes, the connecting pipes are gravity heat pipes, one gravity heat pipe at two ends of the first electric control valve is respectively connected with one end of the plate heat exchanger and one end of the condenser, and the other gravity heat pipe at two ends of the first electric control valve is respectively connected with the other end of the plate heat exchanger and the other end of the condenser.
Through adopting above-mentioned technical scheme, when two first automatically controlled valves open, gaseous refrigerant in the plate heat exchanger rises from two gravity heat pipe middle part and flows to the condenser, and the liquid refrigerant in the condenser receives the effect of gravity again and flows back plate heat exchanger from the pipe wall decline of two gravity heat pipes to realize the circulation, and two energy-conserving cooling branch ways form closed return circuit with plate heat exchanger and condenser, and then make the circulation effect of refrigerant better.
Preferably, the dehumidification branch comprises a second electric control valve, a throttling device and a dehumidifier which are sequentially connected, the front end of the second electric control valve is connected with the rear end of the condenser, and the rear end of the dehumidifier is connected with the air suction end of the compressor.
Through adopting above-mentioned technical scheme, when needs dehumidify in the box, the second electrically controlled valve is opened, and the refrigerant in the condenser gets into throttling arrangement and phase transition into the gas-liquid two-phase state of low temperature low pressure through the second electrically controlled valve, and after the low temperature low pressure refrigerant got into the dehumidifier, the dehumidifier dehumidify in the box.
Preferably, a first sensor is arranged at the output end of the dehumidifier, and the first sensor detects the return air temperature and the return air humidity of the dehumidifier.
Through adopting above-mentioned technical scheme, use first sensor to detect the return air temperature and the return air humidity of dehumidifier to be convenient for monitor the dehumidification effect of dehumidification branch road.
Preferably, a second sensor is arranged at one end of the expansion valve, which is close to the plate heat exchanger, and the second sensor detects the temperature of the rear end of the expansion valve in the refrigeration cooling loop.
Through adopting above-mentioned technical scheme, use the second sensor to detect the temperature of gas-liquid two-phase state refrigerant department in the refrigeration cooling circuit to can reduce the refrigeration cooling circuit and appear freezing the condition.
Preferably, the air suction end of the compressor and one end of the condenser close to the four-way valve are both provided with refrigerant filling ports.
By adopting the technical scheme, the refrigerant filling port is used for conveniently adding the refrigerant into the temperature control system.
Preferably, the gravity heat pipe inner wall is provided with a reflux groove along the self axis direction.
Through adopting above-mentioned technical scheme, in the liquid refrigerant in the condenser got into gravity heat pipe's reflux tank under the action of gravity, the refrigerant was through reflux tank whereabouts back plate heat exchanger, used the reflux tank to reduce the area of contact with gaseous refrigerant in the liquid refrigerant backward flow process for the gaseous refrigerant backward flow in-process is difficult for evaporating once more, thereby has improved the work efficiency of energy-conserving cooling branch road.
Preferably, the width of the bottom wall of the reflux groove is larger than the width of the top opening of the reflux groove.
By adopting the technical scheme, on one hand, the volume of the reflux tank is increased, so that the reflux tank can accommodate more liquid refrigerant, and on the other hand, the contact area between the liquid refrigerant and the gaseous refrigerant is further reduced.
Preferably, the flow-back grooves are arranged at intervals along the circumference of the gravity assisted heat pipe, the inner wall of the gravity assisted heat pipe is close to the top end of the plate heat exchanger and provided with flow-back ring grooves, and the flow-back ring grooves are communicated with the flow-back grooves.
By adopting the technical scheme, the liquid refrigerant in the condenser firstly enters the split ring groove, and the split ring groove splits the liquid refrigerant into a plurality of reflux grooves, so that the reflux grooves can further accommodate more liquid refrigerant.
Preferably, the gravity assisted heat pipe is provided with a plurality of guide blocks on the side wall of the split ring groove at intervals, each guide block is located between two adjacent reflux grooves, the top width of the guide block is smaller than the bottom width, and two bottom ends of the guide block are connected with two adjacent reflux grooves.
Through adopting above-mentioned technical scheme, when liquid refrigerant got into the reposition of redundant personnel annular in, a plurality of guide blocks in the reposition of redundant personnel annular guide liquid refrigerant for liquid refrigerant can equally divide in a plurality of reflux slots, thereby reduces the condition that liquid refrigerant overflowed from the reflux slot.
In summary, the present application includes at least one of the following beneficial technical effects:
1. heating or cooling the medium in the water cooling system by adopting a heat pump and refrigeration principle; the energy-saving cooling branch is adopted, so that the temperature control system can still play a cooling effect under the condition of not consuming energy; the refrigerant in the refrigeration cooling loop is adopted to simultaneously provide energy for the dehumidification branch, so that the energy consumption of the water cooling system for regulating and controlling the temperature in the box body can be greatly reduced;
2. the contact area between the liquid refrigerant and the gaseous refrigerant in the process of refluxing is reduced by adopting the reflux groove, so that the gaseous refrigerant is not easy to evaporate again in the process of refluxing, and the working efficiency of the energy-saving cooling branch is improved;
3. the guide block is adopted to guide the liquid refrigerant, so that the liquid refrigerant can be equally divided into a plurality of reflux grooves, and the overflow condition of the liquid refrigerant from the reflux grooves is reduced.
Drawings
FIG. 1 is a block diagram of an all-in-one energy storage temperature control system of the present application;
FIG. 2 is a schematic view of a portion of a gravity assisted heat pipe according to the present application;
FIG. 3 is a cross-sectional view of a portion of the structure of the present application showing a gravity assisted heat pipe.
Reference numerals illustrate: 1. a compressor; 2. a four-way valve; 3. a condenser; 4. an expansion valve; 5. a plate heat exchanger; 6. a condensing fan; 7. an energy-saving cooling branch; 71. a first electrically controlled valve; 72. a gravity assisted heat pipe; 8. a dehumidification branch; 81. a second electrically controlled valve; 82. a throttle device; 83. a dehumidifier; 9. a refrigerant filling port; 10. a reflux groove; 11. a split ring groove; 12. a guide block; 13. a dehumidifying fan.
Detailed Description
The application is described in further detail below with reference to fig. 1-3.
The embodiment of the application discloses an all-in-one energy storage temperature control system.
Referring to fig. 1, an all-in-one energy storage temperature control system includes a compressor 1, a four-way valve 2, a condenser 3, a condensing fan 6, an expansion valve 4, a plate heat exchanger 5, a condensing branch and a dehumidifying branch 8. The first port of the four-way valve 2 is connected with an exhaust pipe of the compressor 1 through a pipeline, the second port of the four-way valve 2 is connected with one end of the condenser 3 through a pipeline, the third port of the four-way valve 2 is connected with one end of the plate heat exchanger 5 through a pipeline, and the fourth port of the four-way valve 2 is connected with an air suction end of the compressor 1 through a pipeline. The condenser 3, the expansion valve 4 and the plate heat exchanger 5 are sequentially communicated through pipelines, and the condensing fan 6 is arranged at the side of the condenser 3.
When the refrigerant in the compressor 1 sequentially passes through the four-way valve 2, the condenser 3, the expansion valve 4, the plate heat exchanger 5 and the four-way valve 2 and flows back to the compressor 1, the components form a refrigeration cooling loop. The exhaust end of the compressor 1 discharges high-temperature and high-pressure gaseous refrigerant, the gaseous refrigerant enters the condenser 3 through the second port of the four-way valve 2, the cooling fan 6 cools the refrigerant in the condenser 3, the refrigerant is condensed into a medium-temperature and high-pressure liquid state, the liquid refrigerant enters the expansion valve 4 again, the expansion valve 4 throttles the refrigerant, the refrigerant is converted into a low-temperature and low-pressure gas-liquid two-phase state, the refrigerant enters the plate heat exchanger 5 again and exchanges heat with a medium of the water cooling system, the cooled medium cools the battery pack, and the refrigerant after heat exchange flows back to the compressor 1 from the air suction end of the compressor 1 through the four-way valve 2.
When the refrigerant in the compressor 1 sequentially passes through the four-way valve 2, the plate heat exchanger 5, the expansion valve 4, the condenser 3 and the four-way valve 2 and flows back to the compressor 1, the components form a heat pump heating loop. The exhaust end of the compressor 1 discharges high-temperature and high-pressure gaseous refrigerant, the gaseous refrigerant enters the plate heat exchanger 5 through the third port of the four-way valve 2 and exchanges heat with a medium of the water cooling system, the heat medium after heat exchange heats the battery pack, and the refrigerant after heat exchange sequentially passes through the expansion valve 4, the condenser 3 and the four-way valve 2 and flows back to the compressor 1 from the air suction end of the compressor 1. The heat pump and the refrigeration principle are adopted to heat or cool the medium of the water cooling system, so that the battery pack can be heated or cooled.
Two energy-saving cooling branches 7 are arranged, and the two energy-saving cooling branches 7 are arranged on the refrigerating cooling loop in parallel. The energy-saving cooling branch 7 comprises a first electric control valve 71 and two connecting pipes, wherein in the application, the connecting pipes are gravity heat pipes 72, and the first electric control valve 71 is an electric ball valve. Two gravity heat pipes 72 are respectively installed at two ends of the first electric control valve 71, the end parts of the two gravity heat pipes 72, which are far away from each other, are respectively communicated with the condenser 3 and the plate heat exchanger 5, and the condenser 3 is positioned above the plate heat exchanger 5.
When the energy storage power station is used in winter and the battery pack needs to be cooled, the four-way valve 2 and the expansion valve 4 are closed, the two first electric control valves 71 are opened, and the condenser 3, one energy-saving cooling branch 7, the plate heat exchanger 5, the other energy-saving cooling branch 7 and the condenser 3 are sequentially connected and form a closed loop. After exchanging heat with the medium in the water cooling system, the liquid refrigerant in the plate heat exchanger 5 is converted into a high-temperature gaseous refrigerant, and the gaseous refrigerant sequentially passes through the gravity heat pipe 72, the first electric control valve 71 and the gravity heat pipe 72 to rise into the condenser 3. At this time, the condenser 3 radiates heat to the refrigerant by means of the low-temperature environment, so that the refrigerant is converted into a low-temperature liquid state, and the liquid refrigerant is influenced by gravity and then flows down through the gravity heat pipe 72, the first electric control valve 71 and the gravity heat pipe 72 in sequence to the plate heat exchanger 5, thereby realizing the reciprocating cycle of the refrigerant. The energy-saving cooling branch 7 is used, so that the temperature control system can still cool the medium in the water cooling system under the condition of not consuming energy.
Referring to fig. 2 and 3, the gravity assisted heat pipe 72 has a circulation groove 10 formed in the inner wall thereof in the axial direction thereof, and eight circulation grooves 10 formed in the circumferential direction of gravity assisted heat exchange. The cross section of the reflux groove 10 is trapezoid, and the width of the bottom wall of the reflux groove 10 is larger than that of the top opening of the reflux groove 10. When the liquid refrigerant flows into the gravity assisted heat pipe 72, the liquid refrigerant flows into the reflow groove 10, and at this time, the liquid refrigerant flows downward in the reflow groove 10, and the gaseous refrigerant flows upward in the middle of the gravity assisted heat pipe 72. In this way, the contact area between the high-temperature gaseous refrigerant and the low-temperature liquid refrigerant in the gravity heat pipe 72 is reduced, so that the liquid refrigerant is not easy to evaporate when flowing back downwards, and the cooling efficiency of the energy-saving cooling branch 7 can be improved.
The top end of the gravity heat pipe 72, which is close to the condenser 3, is provided with a split ring groove 11, and the split ring groove 11 is communicated with the top ends of the eight reflux grooves 10. The gravity assisted heat pipe 72 is located on the side wall of the split ring groove 11, eight guide blocks 12 are formed in an integrated mode at equal intervals along the circumferential direction of the gravity assisted heat pipe 72, each guide block 12 is triangular, each guide block 12 is located between two adjacent reflux grooves 10, the top ends of the guide blocks 12 point to the condenser 3, and two bottom feet of the guide blocks 12 are located at the top ends of two adjacent reflux grooves 10 respectively.
When the liquid refrigerant flows into the gravity heat pipe 72, the liquid refrigerant flows into the split ring groove 11, and after the liquid refrigerant is guided by the guide block 12, the liquid refrigerant flows into the plurality of reflux grooves 10 uniformly, so that the liquid refrigerant is not easy to gather in a single reflux groove 10. Meanwhile, two side walls at the top end of the guide block 12 are close to one end of the side wall of the diversion ring groove 11 and incline inwards, and the inclined side wall of the guide block 12 guides the liquid refrigerant, so that the liquid refrigerant is not easy to flow out of the guide block 12.
Referring to fig. 1, a dehumidifying branch 8 is connected in parallel to a refrigerating and cooling circuit, and the dehumidifying branch 8 includes a second electrically controlled valve 81, a throttling device 82 and a dehumidifier 83 which are sequentially connected through a pipeline, wherein the second electrically controlled valve 81 is an electromagnetic valve, and the throttling device 82 is a capillary tube. The front end of the second electric control valve 81 is connected with the rear end of the condenser 3 in the refrigeration cooling loop through a pipeline, and the rear end of the dehumidifier 83 is connected with the air suction end of the compressor 1. Meanwhile, a dehumidifying fan 13 is installed at the outer side of the dehumidifier 83.
When dehumidification is needed in the box body, the second electric control valve 81 is opened, the refrigerant in the condenser 3 enters the capillary tube, the throttling device 82 throttles the refrigerant, the refrigerant is converted into a low-temperature low-pressure gas-liquid two-phase state, the refrigerant enters the dehumidifier 83, the dehumidifier 83 dehumidifies the humid air in the box body, and the dehumidification fan 13 blows the dehumidified dry air of the dehumidifier 83 into the box body. Therefore, the temperature control system has the functions of cooling and heating and also has the function of dehumidification.
In conclusion, the heat pump and the refrigeration principle are adopted to heat or cool the medium in the water cooling system, so that the energy consumption of the water cooling system is reduced; the energy-saving cooling branch 7 is adopted, so that the temperature control system can still cool the medium in the water cooling system under the condition of not consuming energy; the refrigerant in the refrigeration cooling loop can provide energy for the dehumidification branch 8 at the same time, so that the energy consumption of dehumidification is reduced. Therefore, the energy consumption of the water cooling system when the internal temperature of the box body is regulated and controlled can be greatly reduced by the integrated energy storage temperature control system.
The second ports of the air suction end and the air discharge valve of the compressor 1 are provided with refrigerant filling ports 9, and refrigerant can be filled into the temperature control system through the two refrigerant filling ports 9.
The output end of the dehumidifier 83 is provided with a first sensor, and the first sensor detects the return air temperature T1 and the return air humidity RH of the dry air after the dehumidifier 83 dehumidifies, so that whether the dehumidification effect of the dehumidifier 83 reaches the standard or not is judged conveniently.
The expansion valve 4 is close to the one end of the plate heat exchanger 5 and installs the second sensor, and the second sensor detects the temperature T2 of the two-phase state refrigerant of gas-liquid in the refrigeration cooling circuit to be convenient for judge the temperature in the refrigeration cooling circuit pipeline, reduce the circumstances that the refrigeration cooling circuit appears freezing because of the temperature is too low in the pipeline.
A third sensor is arranged at the outer side of the box body and detects the external temperature T3 of the box body, so that whether the external temperature accords with the use condition of the energy-saving cooling branch 7 or not is judged conveniently;
the fourth sensor is installed to the suction end of compressor 1, and the fourth sensor detects suction pressure P4 and the suction temperature T4 of compressor 1 suction end, and the fifth sensor is installed to the exhaust end of compressor 1, and the exhaust pressure P5 and the exhaust temperature T5 of compressor 1 exhaust end are detected to the fifth sensor to the condition of use of compressor 1 is convenient for judge.
The condenser 3 is provided with a sixth sensor, and the sixth sensor detects the heat radiation and defrosting temperature T6 of the condenser 3, so that the use condition of the condenser 3 can be judged conveniently.
The implementation principle of the embodiment of the application is as follows: the heat pump and the refrigeration principle are adopted to heat or cool the medium in the water cooling system, so that the energy consumption of the water cooling system is reduced; the energy-saving cooling branch 7 is adopted, so that the temperature control system can still cool the medium in the water cooling system under the condition of not consuming energy; the refrigerant in the refrigeration cooling loop can provide energy for the dehumidification branch 8 at the same time, so that the energy consumption of dehumidification is reduced. Therefore, the energy consumption of the water cooling system when the internal temperature of the box body is regulated and controlled can be greatly reduced by the integrated energy storage temperature control system.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. An all-in-one energy storage temperature control system is characterized in that: the cooling system comprises a compressor (1), a four-way valve (2), a condenser (3), an expansion valve (4) and a plate heat exchanger (5) which are connected, and further comprises a condensing fan (6), wherein when a refrigerant output by the compressor (1) sequentially passes through the condenser (3), the expansion valve (4) and the plate heat exchanger (5) through the four-way valve (2) in a regulating manner, and then flows back to the compressor (1) through the four-way valve (2), a refrigerating cooling loop is formed, and the condensing fan (6) dissipates heat of the condenser (3); when the refrigerant output by the compressor (1) sequentially passes through the plate heat exchanger (5), the expansion valve (4) and the condenser (3) through the four-way valve (2) in a regulating way, and then flows back to the compressor (1) through the four-way valve (2), a heat pump heating loop is formed;
the energy-saving cooling branch circuit (7) comprises a first electric control valve (71) and two connecting pipes, the end parts of the two connecting pipes are respectively connected with the condenser (3) and the plate heat exchanger (5), and the condenser (3) is positioned above the plate heat exchanger (5);
the dehumidification branch circuit (8) is connected with the refrigeration cooling loop in parallel.
2. The all-in-one energy storage temperature control system of claim 1, wherein: the energy-saving cooling branch circuit (7) is provided with two, the connecting pipe is a gravity heat pipe (72), and one two gravity heat pipes (72) at two ends of the first electric control valve (71) are respectively connected with one end of the plate heat exchanger (5) and one end of the condenser (3), and the other two gravity heat pipes (72) at two ends of the first electric control valve (71) are respectively connected with the other end of the plate heat exchanger (5) and the other end of the condenser (3).
3. The all-in-one energy storage temperature control system of claim 1, wherein: the dehumidification branch circuit (8) comprises a second electric control valve (81), a throttling device (82) and a dehumidifier (83) which are sequentially connected, the front end of the second electric control valve (81) is connected with the rear end of the condenser (3), and the rear end of the dehumidifier (83) is connected with the air suction end of the compressor (1).
4. The all-in-one energy storage temperature control system of claim 3, wherein: the output end of the dehumidifier (83) is provided with a first sensor, and the first sensor detects the return air temperature and the return air humidity of the dehumidifier (83).
5. The all-in-one energy storage temperature control system of claim 1, wherein: and a second sensor is arranged at one end of the expansion valve (4) close to the plate heat exchanger (5), and the second sensor detects the temperature of the rear end of the expansion valve (4) in the refrigeration cooling loop.
6. The all-in-one energy storage temperature control system of claim 1, wherein: the air suction end of the compressor (1) and one end, close to the four-way valve (2), of the condenser (3) are both provided with a refrigerant filling port (9).
7. The all-in-one energy storage temperature control system of claim 2, wherein: the gravity heat pipe (72) is provided with a reflux groove (10) on the inner wall along the self axis direction.
8. The multiple in one energy storage temperature control system of claim 7, wherein: the width of the bottom wall of the reflux groove (10) is larger than the width of the top opening of the reflux groove (10).
9. The multiple in one energy storage temperature control system of claim 7, wherein: the gravity heat pipe (72) is characterized in that a plurality of flow dividing grooves (10) are formed in the gravity heat pipe (72) at intervals along the circumferential direction, a flow dividing ring groove (11) is formed in the inner wall of the gravity heat pipe (72) close to the top end of the plate heat exchanger (5), and the flow dividing ring groove (11) is communicated with the plurality of flow dividing grooves (10).
10. The all-in-one energy storage temperature control system of claim 9, wherein: the gravity assisted heat pipe (72) is arranged on the side wall of the split ring groove (11) at intervals, a plurality of guide blocks (12) are arranged between two adjacent reflux grooves (10) at intervals, the top width of each guide block (12) is smaller than the bottom width, and two bottom ends of each guide block (12) are connected with two adjacent reflux grooves (10).
CN202310676004.0A 2023-06-08 2023-06-08 All-in-one energy storage temperature control system Pending CN116706320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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CN116706320A true CN116706320A (en) 2023-09-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117117387A (en) * 2023-10-19 2023-11-24 深圳市首航新能源股份有限公司 Energy storage thermal management system
CN117293449A (en) * 2023-11-27 2023-12-26 豫新汽车热管理科技有限公司 Refrigerant direct-cooling and direct-heating type heat management system for energy storage cabinet and flow distribution structure of refrigerant direct-cooling and direct-heating type heat management system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117117387A (en) * 2023-10-19 2023-11-24 深圳市首航新能源股份有限公司 Energy storage thermal management system
CN117117387B (en) * 2023-10-19 2024-02-06 深圳市首航新能源股份有限公司 Energy storage thermal management system
CN117293449A (en) * 2023-11-27 2023-12-26 豫新汽车热管理科技有限公司 Refrigerant direct-cooling and direct-heating type heat management system for energy storage cabinet and flow distribution structure of refrigerant direct-cooling and direct-heating type heat management system

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