CN115528351A - Energy storage liquid cooling system capable of utilizing inverter waste heat - Google Patents
Energy storage liquid cooling system capable of utilizing inverter waste heat Download PDFInfo
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- CN115528351A CN115528351A CN202211410887.2A CN202211410887A CN115528351A CN 115528351 A CN115528351 A CN 115528351A CN 202211410887 A CN202211410887 A CN 202211410887A CN 115528351 A CN115528351 A CN 115528351A
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- 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
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- 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
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- 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
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- 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
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/667—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an electronic component, e.g. a CPU, an inverter or a capacitor
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- 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
Abstract
The invention relates to the technical field of energy storage systems, in particular to an energy storage liquid cooling system capable of utilizing waste heat of an inverter, which comprises an energy storage battery, a liquid cooling inverter, a heater, a water cooling machine, a three-way pipe A, a three-way pipe B, a three-way valve A, a three-way valve B, a liquid cooling inverter radiator and a controller, wherein temperature sensors are arranged in the energy storage battery and the liquid cooling inverter.
Description
Technical Field
The invention relates to the technical field of energy storage system production, in particular to an energy storage liquid cooling system capable of utilizing waste heat of an inverter.
Background
The technical route of energy storage heat management in the market at present is air cooling and liquid cooling, the comprehensive advantages of the liquid cooling scheme in the aspects of ensuring the safety of an energy storage system, the heat dissipation efficiency and the like are obvious, and the liquid cooling scheme is continuously increased in the future.
At present, the main stream of the liquid-cooled energy storage cabinet is standard 0.5C charging and discharging multiplying power, and 1.0C charging and discharging multiplying power can be realized along with the technical breakthrough of a liquid-cooled inverter and a liquid-cooled energy storage battery. When the energy storage battery works, the liquid cooling inverter works, and heat generated by the working of the liquid cooling inverter needs to be cooled by the radiator.
Under winter or the low temperature condition, the energy storage battery needs the heating, and the liquid cooling dc-to-ac converter during operation, prior art does not utilize the heat that the work of liquid cooling dc-to-ac converter produced to heat for the battery, and this energy is just direct loss, and the liquid cooling dc-to-ac converter during operation needs the radiator to give off the heat simultaneously, extra production energy consumption. Therefore, an energy storage liquid cooling system capable of utilizing waste heat of the inverter is put into use so as to solve the problems.
Disclosure of Invention
The invention aims to provide an energy storage liquid cooling system capable of utilizing residual heat of an inverter to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an energy storage liquid cooling system capable of utilizing waste heat of an inverter comprises an energy storage battery, a liquid cooling inverter, a heater, a water cooler, a three-way pipe A, a three-way pipe B, a three-way valve A, a three-way valve B, a liquid cooling inverter radiator and a controller, wherein temperature sensors are arranged in the energy storage battery and the liquid cooling inverter;
three liquid inlets of the three-way pipe A are respectively communicated with a cooling liquid outlet of the energy storage battery, a first liquid inlet of the three-way valve A and a liquid inlet of the heater;
three liquid inlets of the three-way pipe B are respectively communicated with a liquid inlet of the energy storage battery, a liquid outlet of the water cooler and a first liquid inlet of the three-way valve B, and a liquid outlet of the heater is communicated with a liquid inlet of the water cooler;
the liquid outlet of the liquid-cooling inverter is communicated with the second liquid inlet of the three-way valve A, and the liquid inlet of the liquid-cooling inverter is communicated with the second liquid inlet of the three-way valve B;
a liquid inlet of the liquid-cooling inverter radiator is communicated with a third liquid inlet of the three-way valve A, and a liquid outlet of the liquid-cooling inverter radiator is communicated with a third liquid inlet of the three-way valve B;
the controller is respectively electrically connected with the temperature sensor, the liquid cooling inverter, the heater, the water cooler three-way valve A, the three-way valve B and the liquid cooling inverter radiator.
Preferably, a first water pump and a first expansion kettle are arranged on a connecting pipeline between the three-way pipe A and the heater, and the first water pump is electrically connected with the controller.
Preferably, a second water pump and a second expansion kettle are arranged on a connecting pipeline between the three-way valve A and the liquid cooling inverter radiator, and the second water pump is electrically connected with the controller.
Preferably, a first water inlet pressure sensor and a first water inlet temperature sensor are arranged on a connecting pipeline between the three-way pipe A and the heater, a first water outlet temperature sensor and a first water outlet pressure sensor are arranged on a connecting pipeline between the water cooler and the three-way pipe B, and the controller is electrically connected with the first water inlet pressure sensor, the first water inlet temperature sensor, the first water outlet temperature sensor and the first water outlet pressure sensor respectively.
Preferably, a second water inlet temperature sensor and a second water inlet pressure sensor are arranged on a connecting pipeline between the three-way valve A and the liquid cooling inverter radiator, a second water outlet temperature sensor and a second water outlet pressure sensor are arranged on a connecting pipeline between the liquid cooling inverter radiator and the three-way valve B, and the controller is electrically connected with the second water inlet pressure sensor, the second water inlet temperature sensor, the second water outlet temperature sensor and the second water outlet pressure sensor respectively.
Preferably, the system also comprises a water cooler radiator, and a liquid inlet and a liquid outlet of the water cooler radiator are respectively communicated with the water cooler.
Preferably, a connecting pipeline between the water cooler radiator and the water cooler is provided with a liquid storage tank, a compressor and an electronic expansion valve, and the water cooler radiator, the compressor and the electronic expansion valve are all electrically connected with the controller.
Preferably, the number of the liquid cooling inverters is at least two, and the two groups of the liquid cooling inverters are connected in parallel or in series.
Compared with the prior art, the invention has the beneficial effects that:
the invention is connected with the liquid cooling inverter through the three-way valve and the connecting pipeline on the basis of the existing liquid cooling system of the energy storage battery, so that the heat generated by the liquid cooling inverter during the operation can be provided for the energy storage battery, the heating effect of the energy storage battery is further achieved, the energy consumption of the heater and the radiator of the liquid cooling inverter is saved, and in the heating process of the energy storage battery, the heater and the radiator of the liquid cooling inverter can work less or not work by releasing the heat of the liquid cooling inverter, and the noise of the whole machine is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an energy storage liquid cooling system according to the present invention;
fig. 2 is a schematic view of a flow structure of the energy storage liquid cooling system of the present invention.
In the drawings, the reference numbers indicate the following list of parts:
1. an energy storage battery; 2. a liquid-cooled inverter; 3. a heater; 4. a water cooling machine; 5. a three-way pipe A; 6. a three-way pipe B; 7. a three-way valve A; 8. a three-way valve B; 9. a liquid-cooled inverter radiator; 10. a first water pump; 11. a first expansion tank; 12. a second water pump; 13. a second expansion tank; 14. a first inlet water pressure sensor; 15. a first inlet water temperature sensor; 16. a first effluent temperature sensor; 17. a first water outlet pressure sensor; 18. a second inlet water temperature sensor; 19. a second inlet water pressure sensor; 20. a second effluent temperature sensor; 21. a second effluent pressure sensor; 22. a water cooler radiator; 23. a water cooler radiator; 24. a water cooling machine; 25. an electronic expansion valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution:
an energy storage liquid cooling system capable of utilizing waste heat of an inverter comprises an energy storage battery 1, a liquid cooling inverter 2, a heater 3, a water cooler 4, a three-way pipe A5, a three-way pipe B6, a three-way valve A7, a three-way valve B8, a liquid cooling inverter radiator 9 and a controller, wherein temperature sensors are arranged in the energy storage battery 1 and the liquid cooling inverter 2;
three liquid inlets of the three-way pipe A5 are respectively communicated with a cooling liquid outlet of the energy storage battery 1, a first liquid inlet of the three-way valve A7 and a liquid inlet of the heater 3;
three liquid inlets of the three-way pipe B6 are respectively communicated with a liquid inlet of the energy storage battery 1, a liquid outlet of the water cooler 4 and a first liquid inlet of the three-way valve B8, and a liquid outlet of the heater 3 is communicated with a liquid inlet of the water cooler 4;
the liquid outlet of the liquid-cooled inverter 2 is communicated with the second liquid inlet of the three-way valve A7, and the liquid inlet of the liquid-cooled inverter 2 is communicated with the second liquid inlet of the three-way valve B8;
a liquid inlet of the liquid-cooling inverter radiator 9 is communicated with a third liquid inlet of the three-way valve A7, and a liquid outlet of the liquid-cooling inverter radiator 9 is communicated with a third liquid inlet of the three-way valve B8;
the controller is respectively and electrically connected with the temperature sensor, the liquid cooling inverter 2, the heater 3, the water cooler 4, the three-way valve A7, the three-way valve B8 and the liquid cooling inverter radiator 9.
Specifically, a first water pump 10 and a first expansion kettle 11 are arranged on a connecting pipeline between the three-way pipe A5 and the heater 3, and the first water pump 10 is electrically connected with the controller.
Specifically, a second water pump 12 and a second expansion kettle 13 are arranged on a connecting pipeline between the three-way valve A7 and the liquid cooling inverter radiator 9, and the first water pump 12 is electrically connected with the controller.
From the above description it follows that: the expansion kettle is arranged on the connecting pipeline, so that the pressure inside the connecting pipeline can be prevented from being too high, and the flow rate of the cooling liquid inside the connecting pipeline can be adjusted by the water pump.
Specifically, a first water inlet pressure sensor 14 and a first water inlet temperature sensor 15 are arranged on a connecting pipeline between the three-way pipe A5 and the heater 3, a first water outlet temperature sensor 16 and a first water outlet pressure sensor 17 are arranged on a connecting pipeline between the water cooler 4 and the three-way pipe B8, and the controller is electrically connected with the first water inlet pressure sensor 14, the first water inlet temperature sensor 15, the first water outlet temperature sensor 16 and the first water outlet pressure sensor 17 respectively.
From the above description it follows that: can monitor the real-time temperature and the pressure of the inside coolant liquid of connecting tube to the controller can be according to the velocity of flow of energy storage battery's temperature demand control coolant liquid, with this control energy storage battery's heat time.
Specifically, a second water inlet temperature sensor 18 and a second water inlet pressure sensor 19 are arranged on a connecting pipeline between the three-way valve A7 and the liquid cooling inverter radiator 9, a second water outlet temperature sensor 20 and a second water outlet pressure sensor 21 are arranged on a connecting pipeline between the liquid cooling inverter radiator 9 and the three-way valve B8, and the controller is electrically connected with the second water inlet pressure sensor 18, the second water inlet temperature sensor 19, the second water outlet temperature sensor 20 and the second water outlet pressure sensor 21 respectively.
From the above description it follows that: can monitor inside real-time temperature and the pressure of connecting tube to this velocity of flow of adjusting the coolant liquid, thereby the power of control radiator makes the liquid cooling dc-to-ac converter reach suitable radiating effect.
Specifically, the device further comprises a water cooler radiator 22, and a liquid inlet and a liquid outlet of the water cooler radiator 22 are respectively communicated with the water cooler 4.
Specifically, a liquid storage tank 23, a compressor 24 and an electronic expansion valve 25 are arranged on a connecting pipeline between the water cooler radiator 22 and the water cooler 4, and the water cooler radiator 22, the compressor 24 and the electronic expansion valve 25 are all electrically connected with the controller.
Specifically, the number of the liquid cooling inverters 2 is at least two, the two groups of the liquid cooling inverters 2 are connected in parallel or in series, and multiple groups of the liquid cooling inverters can be used for heating the energy storage battery, so that the waste heat utilization effect and the heating effect are improved.
Referring to fig. 1-2, a first embodiment of the present application is:
an energy storage liquid cooling system capable of utilizing waste heat of inverters comprises an energy storage battery 1, two liquid cooling inverters 2 (the two liquid cooling inverters 2 are connected in series, namely, a liquid outlet of one liquid cooling inverter 2 is communicated with a liquid inlet of the other liquid cooling inverter 2), a heater 3, a water cooler 4, a three-way pipe A5, a three-way pipe B6, a three-way valve A7, a three-way valve B8, a liquid cooling inverter radiator 9 and a controller, wherein a temperature sensor is arranged in the energy storage battery 1, and the three-way valve A \ B are two-position three-way valves;
three liquid inlets of the three-way pipe A5 are respectively communicated with a cooling liquid outlet of the energy storage battery 1, a first liquid inlet of the three-way valve A7 and a liquid inlet of the heater 3, a first water pump 10 and a first expansion kettle 11 are arranged on a connecting pipeline between the three-way pipe A5 and the heater 3, the expansion kettle arranged on the connecting pipeline can avoid overlarge pressure inside the connecting pipeline, the water pump can adjust the flow velocity of the cooling liquid inside the connecting pipeline, a first water inlet pressure sensor 14 and a first water inlet temperature sensor 15 are arranged on the connecting pipeline between the three-way pipe A5 and the heater 3, a first water outlet temperature sensor 16 and a first water outlet pressure sensor 17 are arranged on the connecting pipeline between the water cooler 4 and the three-way pipe B8, and a controller is respectively electrically connected with the first water inlet pressure sensor 14, the first water inlet temperature sensor 15, the first water outlet temperature sensor 16 and the first water outlet pressure sensor 17 and can monitor the real-time temperature and pressure of the cooling liquid inside the connecting pipeline, so that the controller can control the flow velocity of the cooling liquid according to the temperature demand of the energy storage battery and control the heating time of the energy storage battery;
three liquid inlets of the three-way pipe B6 are respectively communicated with a liquid inlet of the energy storage battery 1, a liquid outlet of the water cooler 4 and a first liquid inlet of the three-way valve B8, and a liquid outlet of the heater 3 is communicated with a liquid inlet of the water cooler 4;
the liquid outlet of the liquid-cooled inverter 2 is communicated with the second liquid inlet of the three-way valve A7, and the liquid inlet of the liquid-cooled inverter 2 is communicated with the second liquid inlet of the three-way valve B8;
a liquid inlet of the liquid-cooled inverter radiator 9 is communicated with a third liquid inlet of a three-way valve A7, a liquid outlet of the liquid-cooled inverter radiator 9 is communicated with a third liquid inlet of a three-way valve B8, a second water pump 12 and a second expansion kettle 13 are arranged on a connecting pipeline between the three-way valve A7 and the liquid-cooled inverter radiator 9, the expansion kettle arranged on the connecting pipeline can avoid overlarge pressure inside the connecting pipeline, the water pump can adjust the flow rate of cooling liquid inside the connecting pipeline, a second water inlet temperature sensor 18 and a second water inlet pressure sensor 19 are arranged on the connecting pipeline between the three-way valve A7 and the liquid-cooled inverter radiator 9, a second water outlet temperature sensor 20 and a second water outlet pressure sensor 21 are arranged on the connecting pipeline between the liquid-cooled inverter radiator 9 and the three-way valve B8, and a controller is respectively electrically connected with the second water inlet pressure sensor 18, the second water inlet temperature sensor 19, the second water outlet temperature sensor 20 and the second water outlet pressure sensor 21 and can monitor the real-time temperature and pressure inside the connecting pipeline, so as to adjust the flow rate of the cooling liquid, thereby controlling the power of the radiator and enabling the liquid-cooled inverter to achieve a proper heat dissipation effect;
the controller is respectively and electrically connected with the temperature sensor, the liquid cooling inverter 2, the heater 3, the water cooler 4, the three-way valve A7, the three-way valve B8 and the liquid cooling inverter radiator 9.
The water cooling system is characterized by further comprising a water cooling machine radiator 22, a liquid inlet and a liquid outlet of the water cooling machine radiator 22 are respectively communicated with the water cooling machine 4, a liquid storage tank 23, a compressor 24 and an electronic expansion valve 25 are arranged on a connecting pipeline between the water cooling machine radiator 22 and the water cooling machine 4, and the water cooling machine radiator 22, the compressor 24 and the electronic expansion valve 25 are all electrically connected with the controller.
The waste heat utilization process of the inverter of the energy storage liquid cooling system in the above embodiment is as follows (as shown in fig. 2):
under the low temperature condition, energy storage battery 1 is in charge or discharge state, and liquid cooling inverter 2 starts work, and energy storage battery 1 has the heating demand, and the controller compares the heating demand of energy storage battery 1 and the calorific capacity of liquid cooling inverter 2 self work (the heating demand is obtained by the temperature sensor inside energy storage battery 1, the calorific capacity of liquid cooling inverter 2 work is obtained by the temperature sensor inside):
1) When the heating demand of energy storage battery 1 > 2 self calorific capacity of liquid cooling dc-to-ac converter, the work of heater 3 start-up, working power is according to actual demand power output, provides energy storage battery 1 with 2 heats of liquid cooling dc-to-ac converter through connecting line simultaneously to the controller passes through temperature sensor real time monitoring energy storage battery 1's heating demand, compares 1 surplus heating demands of energy storage battery and 2 calorific capacities of liquid cooling dc-to-ac converter:
if the residual heating requirement is larger than the heat productivity of the liquid cooling inverter 2, the heater 3 continues to work, the working power of the heater 3 is output according to the actual required power, and meanwhile, the heat of the liquid cooling inverter 2 is provided for the energy storage battery 1 through the connecting pipeline;
if the residual heating requirement is less than or equal to the heat productivity of the liquid cooling inverter 2, the heater 3 stops working, and the heat of the liquid cooling inverter 2 is provided for the energy storage battery 1 through the connecting pipeline.
And the controller judges whether the heating requirement of the energy storage battery 1 is finished, if not, the liquid cooling inverter 2 continues to provide heat, if so, the controller closes a connecting pipeline for supplying heat to the energy storage battery 1 by the liquid cooling inverter 2, and the heating of the energy storage battery 1 is finished.
(2) When the heating requirement of the energy storage Battery 1 is less than or equal to the self heating value of the liquid cooling inverter 2, the heater 3 does not work, the heat of the liquid cooling inverter 2 is provided for the energy storage Battery 1 through the connecting pipeline, the controller judges whether the energy storage heating requirement is completed or not, if the energy storage heating requirement is not completed, the liquid cooling inverter 2 continues to provide heat, if the energy storage Battery heating requirement is completed, the controller closes the connecting pipeline for the liquid cooling inverter 2 to supply heat to the energy storage Battery 1, and the Battery Battery heating of the energy storage Battery is finished.
The working principle of the energy storage liquid cooling system inverter waste heat utilization in the above embodiment is as follows:
(1) Under the low temperature condition, energy storage battery 1 charges or the discharge state, and 2 start-ups of liquid cooling inverter, energy storage battery 1 has the heating demand this moment, and liquid cooling inverter 2 has the heat dissipation demand:
the controller disconnects the connecting pipeline on the side of the liquid cooling inverter radiator 9 by controlling the two-position three-way valve A7 and the two-position three-way valve B8, opens the connecting pipeline on the side of the energy storage battery 1, and is communicated with the connecting pipeline of the liquid cooling system of the energy storage battery 1 through the three-way valve A7 on the side of the energy storage battery 1, and the heat of the liquid cooling inverter 2 is provided for the energy storage battery 1 through the connecting pipeline to heat the energy storage battery 1; the controller monitors the first water inlet temperature sensor 15, the first water inlet pressure sensor 14, the first water outlet temperature sensor 18 and the first water outlet pressure sensor 17, and controls the speed of water flow in a connecting pipeline of the water cooling machine 4, so that the heating time of the energy storage battery 1 is controlled;
if the controller judges that the current water flow speed in the connecting pipeline reaches the maximum value but still does not meet the heating requirement of the energy storage battery 1, the liquid cooling system starts the heater 3 to heat the water temperature.
If the controller judges that the water flow speed in the current connecting pipeline can meet the heating requirement of the energy storage battery 1, the liquid cooling system closes the heater 3.
When the heating requirement of the energy storage battery 1 is completed, the controller opens the connecting pipeline on the side of the liquid cooling inverter radiator 9 by controlling the two-position three-way valve A7 and the two-position three-way valve B8, and disconnects the connecting pipeline on the side of the energy storage battery 1.
(2) When energy storage battery 1 is in charge or discharge state, liquid cooling dc-to-ac converter 2 start-up work, energy storage battery 1 has the cooling demand, and liquid cooling dc-to-ac converter 2 has the heat dissipation demand:
the controller opens the connecting pipeline on the side of the liquid cooling inverter radiator 9 by controlling the two-position three-way valve A7 and the two-position three-way valve B8, and disconnects the connecting pipeline on the side of the energy storage battery 1; the controller controls the liquid cooling inverter side radiators 9 to work, and the heat generated by the two liquid cooling inverters 2 is dissipated by the liquid cooling inverter side radiators 9, so that the working temperature of the liquid cooling inverters 2 is reduced; and the controller monitors the second water inlet temperature sensor 18, the second water inlet pressure sensor 19, the second water outlet temperature sensor 20 and the second water outlet pressure sensor 21, and controls the flow rate of the cooling liquid through the second water pump 12, so as to control the power of the liquid cooling inverter radiator 9 and achieve a proper heat dissipation effect.
Meanwhile, the controller monitors the first water inlet temperature sensor 15, the first water inlet pressure sensor 14, the first water outlet temperature sensor 16 and the first water outlet pressure sensor 17, and respectively controls the power of the radiator 23 of the water cooling machine on the side of the energy storage battery 1 and the speed of water flow inside a connecting pipeline of the water cooling machine 4, so that the energy storage battery 1 is cooled.
(2) When the energy storage battery 1 is in a charging or discharging state, the liquid-cooled inverter starts to work, the energy storage battery 1 has no heating or cooling requirement, the controller opens the connecting pipeline on the side of the radiator 9 of the liquid-cooled inverter through the two-position three-way valve A7 and the two-position three-way valve B8 of control liquid, the connecting pipeline on the side of the energy storage battery 1 is disconnected, the controller controls the radiator 9 on the side of the liquid-cooled inverter to work, and heat generated by the work of the two liquid-cooled inverters 2 is dissipated by the radiator 9 on the side of the liquid-cooled inverter, so that the working temperature of the liquid-cooled inverter 2 is reduced; and the controller monitors the second water inlet temperature sensor 18, the second water inlet pressure sensor 19, the second water outlet temperature sensor 20 and the second water outlet pressure sensor 21, so as to control the power of the liquid cooling inverter radiator 9 and achieve a proper heat dissipation effect.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (8)
1. The utility model provides an energy storage liquid cooling system of usable inverter waste heat which characterized in that: the system comprises an energy storage battery (1), a liquid cooling inverter (2), a heater (3), a water cooler (4), a three-way pipe A (5), a three-way pipe B (6), a three-way valve A (7), a three-way valve B (8), a liquid cooling inverter radiator (9) and a controller, wherein temperature sensors are arranged in the energy storage battery (1) and the liquid cooling inverter (2);
three liquid inlets of the three-way pipe A (5) are respectively communicated with a cooling liquid outlet of the energy storage battery (1), a first liquid inlet of the three-way valve A (7) and a liquid inlet of the heater (3);
three liquid inlets of the three-way pipe B (6) are respectively communicated with a liquid inlet of the energy storage battery (1), a liquid outlet of the water cooler (4) and a first liquid inlet of the three-way valve B (8), and a liquid outlet of the heater (3) is communicated with a liquid inlet of the water cooler (4);
the liquid outlet of the liquid cooling inverter (2) is communicated with the second liquid inlet of the three-way valve A (7), and the liquid inlet of the liquid cooling inverter (2) is communicated with the second liquid inlet of the three-way valve B (8);
a liquid inlet of the liquid cooling inverter radiator (9) is communicated with a third liquid inlet of the three-way valve A (7), and a liquid outlet of the liquid cooling inverter radiator (9) is communicated with a third liquid inlet of the three-way valve B (8);
the controller is respectively and electrically connected with the temperature sensor, the liquid cooling inverter (2), the heater (3), the water cooling machine (4), the three-way valve A (7), the three-way valve B (8) and the liquid cooling inverter radiator (9).
2. The energy storage liquid cooling system using the residual heat of the inverter as claimed in claim 1, wherein: a first water pump (10) and a first expansion kettle (11) are arranged on a connecting pipeline between the three-way pipe A (5) and the heater (3), and the first water pump (10) is electrically connected with the controller.
3. The energy storage liquid cooling system using the residual heat of the inverter as claimed in claim 1, wherein: and a second water pump (12) and a second expansion kettle (13) are arranged on a connecting pipeline between the three-way valve A (7) and the liquid cooling inverter radiator (9), and the second water pump (12) is electrically connected with the controller.
4. The energy storage liquid cooling system using the residual heat of the inverter as claimed in claim 1, wherein: the water cooling system is characterized in that a first water inlet pressure sensor (14) and a first water inlet temperature sensor (15) are arranged on a connecting pipeline between the three-way pipe A (5) and the heater (3), a first water outlet temperature sensor (16) and a first water outlet pressure sensor (17) are arranged on a connecting pipeline between the water cooling machine (4) and the three-way pipe B (8), and the controller is electrically connected with the first water inlet pressure sensor (14), the first water inlet temperature sensor (15), the first water outlet temperature sensor (16) and the first water outlet pressure sensor (17) respectively.
5. The energy storage liquid cooling system using the residual heat of the inverter as claimed in claim 1, wherein: be provided with second temperature sensor (18) and the second pressure sensor (19) of intaking on the connecting pipeline between three-way valve A (7) and liquid cooling inverter radiator (9), be provided with second temperature sensor (20) and second pressure sensor (21) of going out on the connecting pipeline between liquid cooling inverter radiator (9) and three-way valve B (8), the controller is intake pressure sensor (18), second temperature sensor (19), second temperature sensor (20) and the second pressure sensor (21) electricity of going out with the second respectively and is connected.
6. The energy storage liquid cooling system capable of utilizing the residual heat of the inverter as claimed in claim 1, wherein: the water cooling device is characterized by further comprising a water cooling device radiator (22), wherein a liquid inlet and a liquid outlet of the water cooling device radiator (22) are respectively communicated with the water cooling device (4).
7. The energy storage liquid cooling system using the residual heat of the inverter as claimed in claim 6, wherein: a liquid storage tank (23), a compressor (24) and an electronic expansion valve (25) are arranged on a connecting pipeline between the water cooler radiator (22) and the water cooler (4), and the water cooler radiator (22), the compressor (24) and the electronic expansion valve (25) are all electrically connected with a controller.
8. The energy storage liquid cooling system capable of utilizing the residual heat of the inverter as claimed in claim 1, wherein: the number of the liquid cooling inverters (2) is at least two, and the two groups of the liquid cooling inverters (2) are connected in parallel or in series.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117039269A (en) * | 2023-10-10 | 2023-11-10 | 深圳市德兰明海新能源股份有限公司 | Energy storage system, temperature control method thereof and computer readable storage medium |
| CN117239297A (en) * | 2023-11-16 | 2023-12-15 | 西安奇点能源股份有限公司 | Energy-saving liquid cooling energy storage system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117039269A (en) * | 2023-10-10 | 2023-11-10 | 深圳市德兰明海新能源股份有限公司 | Energy storage system, temperature control method thereof and computer readable storage medium |
| CN117039269B (en) * | 2023-10-10 | 2024-01-12 | 深圳市德兰明海新能源股份有限公司 | Energy storage system, temperature control method thereof and computer readable storage medium |
| CN117239297A (en) * | 2023-11-16 | 2023-12-15 | 西安奇点能源股份有限公司 | Energy-saving liquid cooling energy storage system |
| CN117239297B (en) * | 2023-11-16 | 2024-03-01 | 西安奇点能源股份有限公司 | Energy-saving liquid cooling energy storage system |
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