CN115377470A - Distributed energy storage equipment for commercial complex - Google Patents

Distributed energy storage equipment for commercial complex Download PDF

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Publication number
CN115377470A
CN115377470A CN202211000704.XA CN202211000704A CN115377470A CN 115377470 A CN115377470 A CN 115377470A CN 202211000704 A CN202211000704 A CN 202211000704A CN 115377470 A CN115377470 A CN 115377470A
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CN
China
Prior art keywords
battery body
battery
radiator
liquid storage
liquid
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Pending
Application number
CN202211000704.XA
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Chinese (zh)
Inventor
于津
骆宗义
侯虎成
吕默影
王晔辰
刘晓谦
范彬彬
汤伟华
滕家扬
蒋一傲
黄昱凯
盛凯
汪柯文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Zhejiang Electric Power Co Ltd Lanxi Power Supply Co
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State Grid Zhejiang Electric Power Co Ltd Lanxi Power Supply Co
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Application filed by State Grid Zhejiang Electric Power Co Ltd Lanxi Power Supply Co filed Critical State Grid Zhejiang Electric Power Co Ltd Lanxi Power Supply Co
Priority to CN202211000704.XA priority Critical patent/CN115377470A/en
Publication of CN115377470A publication Critical patent/CN115377470A/en
Pending legal-status Critical Current

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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
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
    • H01M8/184—Regeneration by electrochemical means
    • H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04701—Temperature
    • H01M8/04731—Temperature of other components of a fuel cell or fuel cell stacks
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Hybrid Cells (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses distributed energy storage equipment for a commercial complex, which comprises a liquid storage tank, a battery body and a charge-discharge circuit, wherein the battery body is connected with the charge-discharge circuit in series, the battery body comprises a battery anode, a battery cathode and a diaphragm positioned between the battery anode and the battery cathode, two ends of the battery anode are respectively communicated with the anode liquid storage tank through pipelines to form a first liquid loop, two ends of the battery cathode are respectively communicated with the cathode liquid storage tank through pipelines to form a second liquid loop, at least one of the two liquid loops is connected with two radiators in parallel, and the two radiators are respectively arranged at the upstream and the downstream of the battery body. And an electric control valve is arranged at the communication part of the radiator and the liquid loop provided with the radiator. According to the technical scheme, the targeted heat dissipation is performed according to the temperature of the liquid storage tank in the distributed energy storage equipment and the temperature condition of the battery body, so that the heat dissipation target is more direct, and the heat dissipation effect is better.

Description

Distributed energy storage equipment for commercial complex
Technical Field
The invention relates to the technical field of distributed energy storage equipment, in particular to distributed energy storage equipment for a commercial complex.
Background
Along with the increasingly prominent energy problem, more and more commercial complexes begin to arrange distributed energy storage equipment, discharge at load peak period by utilizing the distributed energy storage equipment, charge from the power grid at load valley period, reduce peak load demand, save power consumption expense, also can utilize commercial complex roof to set up photovoltaic module and charge distributed energy storage equipment daytime, make full use of the solar energy on the commercial complex reduces the internal temperature of commercial complex simultaneously. The distributed energy storage device can also be used as an emergency power supply in case of emergency power failure. In a plurality of chemical energy storage technologies, the all-vanadium redox flow battery is increasingly applied to distributed energy storage equipment due to the advantages of good charge and discharge performance, large capacity, long service life, high safety and the like, and effective temperature control needs to be carried out on the all-vanadium redox flow battery energy storage equipment to realize safe and reliable operation of the all-vanadium redox flow battery energy storage equipment, so that the all-vanadium redox flow battery energy storage equipment can work within a proper temperature range to adapt to a high-temperature environment and a low-temperature environment. In the existing heat dissipation scheme for dissipating heat of the battery, the battery is generally cooled through an external heat dissipation structure, various heat dissipation structures are required to be arranged outside the battery, the miniaturization of the size of the battery is not facilitated, the scheme can only dissipate heat of the surface of the battery, and the heat dissipation effect cannot directly reach the inside of the battery.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides the distributed energy storage equipment for the commercial complex, and performs targeted heat dissipation according to the temperature of the liquid storage tank in the distributed energy storage equipment and the temperature condition of the battery body, so that the heat dissipation target is more direct, and the heat dissipation effect is better.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a distributed energy storage equipment for commercial complex, includes liquid storage pot, battery body and charge-discharge circuit, the liquid storage pot is including the anodal liquid storage pot that is equipped with anodal electrolyte and the negative pole liquid storage pot that is equipped with negative pole electrolyte, battery body and charge-discharge circuit establish ties, and battery body includes battery positive pole, battery negative pole and is located the diaphragm between battery positive pole and the battery negative pole, the anodal both ends of battery form first liquid return circuit through pipeline and anodal liquid storage pot intercommunication respectively, and the both ends of battery negative pole form the second liquid return circuit through pipeline and negative pole liquid storage pot intercommunication respectively, and two liquid return circuits all are equipped with the circulating pump that is used for driving the interior electrolyte of liquid return circuit and flow, and parallelly connected has two radiators on at least one in two liquid return circuits, and two radiators set up the upper reaches and the low reaches at battery body respectively, the radiator is equipped with the electrically controlled valve with the intercommunication department in the liquid return circuit that is equipped with this radiator to control liquid return circuit in the pipeline whether this radiator flows through, be equipped with temperature sensor in the liquid storage pot, be equipped with temperature sensor in the battery body.
Among the above-mentioned technical scheme, parallelly connected radiator in the liquid return circuit, directly dispel the heat to positive electrolyte or negative electrode electrolyte through the radiator, realize the heat dissipation to distributed energy storage equipment, the heat dissipation target is more direct, and the radiating effect is better, and the radiator does not set up on battery body, can reduce battery body's volume, and battery body is kept away from to the radiator, and it arranges according to the on-the-spot condition to be convenient for, can increase the radiating effect with the radiator setting in ventilation shade's position. When the radiator is required to radiate, the electrolyte in the liquid loop flows through the radiator through the electric control valve to radiate the electrolyte; when the radiator is not needed for radiating, the electrolyte in the liquid loop directly circulates in the liquid loop without flowing through the radiator through the electric control valve, and the radiator can not radiate the electrolyte. The temperature sensor is connected with a control system of the distributed energy storage equipment, the temperatures of the liquid storage tank and the battery body are fed back to the control system in real time, and the control system can conveniently carry out on-off control on the radiator according to the temperatures of the liquid storage tank and the battery body. And two radiators are arranged on the liquid loop and are respectively arranged at the upstream and the downstream of the battery body. The two radiators can respectively radiate the electrolyte flowing into the battery body and the electrolyte flowing out of the battery body. When the temperatures in the liquid storage tank and the battery body are too high, the two radiators positioned at the upstream and the downstream of the battery body are opened simultaneously, the electrolyte flowing into and out of the battery body can be radiated, and the distributed energy storage equipment achieves the best radiating effect. When the temperature in the liquid storage tank is too high and the temperature in the battery body is normal, the radiator positioned at the downstream of the battery body is opened, and the radiator positioned at the upstream of the battery body is closed. The electrolyte of battery body low reaches can rise through the charge-discharge temperature, electrolyte and external temperature difference are bigger, dispel the heat through being located through the radiator of battery body low reaches and can reach better radiating effect, because this internal temperature of battery is normal, if dispel the heat to the electrolyte through the radiator of battery body high reaches, probably lead to the electrolyte temperature to hang down (especially under the severe cold weather), on the contrary be unfavorable for the performance of electrolyte in the battery body, consequently, can guarantee to get into the temperature of this internal electrolyte of battery through the mode of closing the radiator that is located the battery body upper reaches. The temperature in the liquid storage tank is normal, and when the temperature in the battery body is too high, the radiator positioned at the upstream of the battery body is opened, and the radiator positioned at the downstream of the battery body is closed. The radiator positioned at the upstream of the battery body can radiate the electrolyte before entering the battery body to reduce the temperature of the electrolyte, then the electrolyte enters the battery body to radiate the battery body, the temperature in the liquid storage tank is normal, the radiator positioned at the downstream of the battery body does not need to be opened to radiate the heat, if the radiator positioned at the downstream of the battery body is only opened to radiate the heat, the radiated electrolyte enters the liquid storage tank and is mixed with the electrolyte in the liquid storage tank, the mixed electrolyte flows out of the electrolyte in the liquid storage tank, the temperature of the flowing electrolyte is not greatly reduced, and the radiating effect on the battery body is not good; if the radiators positioned at the upstream and the downstream of the battery body are opened simultaneously for heat dissipation, the temperature in the liquid storage tank can be reduced, and the temperature maintenance of the electrolyte in the liquid storage tank is not facilitated.
Preferably, when the temperatures in the liquid storage tank and the battery body are both overhigh, two radiators positioned at the upstream and the downstream of the battery body are opened simultaneously; when the temperature in the liquid storage tank is overhigh and the temperature in the battery body is normal, the radiator positioned at the downstream of the battery body is opened, and the radiator positioned at the upstream of the battery body is closed; the temperature in the liquid storage tank is normal, and when the temperature in the battery body is too high, the radiator positioned at the upstream of the battery body is opened, and the radiator positioned at the downstream of the battery body is closed.
Preferably, the electrically controlled valve is arranged upstream of the radiator. The structure can control whether the electrolyte flows into the radiator or not through the electric control valve to radiate heat.
Preferably, the outer side of the liquid storage tank is provided with a heat preservation layer. The heat preservation can keep warm to the liquid storage pot, avoids the too fast decline of electrolyte temperature in the liquid storage pot under low temperature environment, influences battery body's working property.
Preferably, the bottom of the liquid storage tank is provided with a heating device, and the heating device is connected with the charging and discharging circuit. The heating device can actively heat the liquid storage tank, so that the liquid storage tank is suitable for a low-temperature environment.
Preferably, a heat preservation shell is arranged on the outer side of the battery body. The heat preservation shell can keep warm to battery body, avoids battery body's temperature at low temperature environment too fast decline, influences battery body's working property.
Preferably, the heat preservation shell is provided with an air inlet, an air outlet and a heat dissipation fan, and the heat dissipation fan is arranged at the air inlet or the air outlet. The structure can be to carrying out ventilation cooling in the lagging casing, carries out supplementary heat dissipation to battery body under high temperature environment.
Preferably, the electric control valve and the circulating pump are both connected with the charging and discharging circuit and are powered by the charging and discharging circuit. The electric control valve and the circulating pump are both powered by the charging and discharging circuit, and the electric control valve and the circulating pump can continuously work when power is off externally.
Preferably, a liquid outlet is formed in the bottom of the liquid storage tank, a liquid inlet is formed in the side wall of the liquid storage tank, and the distance from the liquid inlet to the top of the liquid storage tank is greater than 1/5 of the height of the liquid storage tank and smaller than 1/2 of the height of the liquid storage tank. Electrolyte in the liquid storage tank can appear certain loss in the use, can not guarantee that the liquid storage tank keeps full of the state at any time, the inlet sets up on the lateral wall of liquid storage tank, even partial loss appears in the electrolyte, also can make the inlet be in under the electrolyte liquid level height, can avoid the electrolyte to fall from the top and send the noise. The liquid outlet sets up in the bottom of liquid storage pot, can make the electrolyte that gets into the liquid storage pot mix in the liquid storage pot as far as possible, and the liquid outlet then flows from the liquid outlet again, the electrolyte of each position in the make full use of liquid storage pot.
Preferably, when the temperatures in the liquid storage tank and the battery body are both too high, the two radiators located upstream and downstream of the battery body are simultaneously turned on.
Preferably, when the temperature in the tank is too high and the temperature in the battery body is normal, the radiator located downstream of the battery body is opened, and the radiator located upstream of the battery body is closed.
Preferably, when the temperature in the liquid storage tank is normal and the temperature in the battery body is too high, the radiator located upstream of the battery body is opened, and the radiator located downstream of the battery body is closed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the structure of a battery body according to the present invention.
In the figure: the device comprises a liquid storage tank 1, a liquid outlet 1.1, a liquid inlet 1.2, an anode liquid storage tank 1.3, a cathode liquid storage tank 1.4, a battery body 2, a battery anode 2.1, a battery cathode 2.2, a diaphragm 2.3, a charging and discharging circuit 3, a liquid loop 4, a circulating pump 5, a radiator 6, an electric control valve 7, a heat preservation layer 8, a heating device 9, a heat preservation shell 10, an air inlet 10.1, an air outlet 10.2 and a cooling fan 10.3.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Example 1:
as shown in fig. 1 and fig. 2, a distributed energy storage device for a commercial complex comprises a liquid storage tank 1, a battery body 2 and a charging and discharging circuit 3, wherein the liquid storage tank 1 comprises an anode liquid storage tank 1.3 filled with anode electrolyte and a cathode liquid storage tank 1.4 filled with cathode electrolyte, the battery body 2 is connected with the charging and discharging circuit 3 in series, the battery body 2 comprises a battery anode 2.1, a battery cathode 2.2 and a diaphragm 2.3 positioned between the battery anode 2.1 and the battery cathode 2.2, two ends of the battery anode 2.1 are respectively communicated with the anode liquid storage tank 1.3 through pipelines to form a first liquid loop 4, two ends of the battery cathode 2.2 are respectively communicated with the cathode liquid storage tank 1.4 through pipelines to form a second liquid loop 4, both liquid loops 4 are provided with a circulating pump 5 for driving the electrolyte in the liquid loops 4 to flow, at least one of the two liquid loops 4 is connected with a radiator 6 in parallel, an electric control valve 7 is arranged at the communication position of the radiator 6 and the liquid loop 4 to control whether the electrolyte flows through the pipeline 6 in the liquid loop, and the liquid loop 6 is arranged between the battery body 1 and the radiator 2.
In the above technical scheme, the distributed energy storage device further comprises a control system for controlling charging and discharging of the charging and discharging circuit 3, controlling the starting and closing of the circulating pump 5, and controlling the communicating channel in the electric control valve 7. The control instructions required by the control system are common control instructions in the prior art, and the control functions can be realized by adopting the existing control programs and control modules. The radiator 6 adopts a common radiator 6 for radiating liquid, the radiator 6 is provided with radiating fins and a fan for radiating the radiating fins, and the pipeline in the radiator 6 is made into a bent structure so as to prolong the retention time of the liquid in the radiator 6. Among the above-mentioned technical scheme, battery body 2 can discharge to the outside through charge-discharge circuit 3, also can charge battery body 2 through charge-discharge circuit 3, no matter battery body 2 externally discharges or charges, circulating pump 5 all operates, will make the continuous circulation of electrolyte in the liquid storage pot 1 get into anodal 2.1 of battery or battery negative pole 2.2, makes battery body 2 can continuously externally discharge, and the 2 volumes of battery body can be done very little, increases the storable electric quantity of energy storage equipment through enlarging liquid storage pot 1. The battery body 2 can generate heat in the discharging and charging processes, the performance of the energy storage device can be influenced by the overhigh temperature, and fire is caused by the arrangement, so that the energy storage device needs to be properly cooled. Parallelly connected radiator 6 in liquid circuit 4, directly dispel the heat to positive electrolyte or negative pole electrolyte through radiator 6, realize the heat dissipation to distributed energy storage equipment, the heat dissipation target is more direct, and the radiating effect is better, and radiator 6 does not set up on battery body 2, can reduce battery body 2's volume, and battery body 2 is kept away from to radiator 6, and it arranges according to the on-the-spot condition of being convenient for, can set up radiator 6 in the position of ventilating shade and cool increase radiating effect. When the radiator 6 is required to radiate heat, the electrolyte in the liquid loop 4 flows through the radiator 6 through the electric control valve 7 to radiate the electrolyte; when the radiator 6 is not required to radiate heat, the electrolyte in the liquid circuit 4 is directly circulated in the liquid circuit 4 without flowing through the radiator 6 by the electric control valve 7, and the radiator 6 does not radiate heat to the electrolyte. The liquid storage tank 1 can be selected to be in a proper size according to actual needs.
A temperature sensor is arranged in the liquid storage tank 1, and a temperature sensor is arranged in the battery body 2. Two radiators 6 are provided on one of the liquid circuits 4, and the two radiators 6 are provided upstream and downstream of the battery body 2 in the liquid circuit 4, respectively. The electrically controlled valve 7 is arranged upstream of the radiator 6. The temperature sensor is connected with a control system of the distributed energy storage equipment, the temperatures of the liquid storage tank 1 and the battery body 2 are fed back to the control system in real time, and the control system is convenient to control the heat radiator 6 to be switched on and off according to the temperatures of the liquid storage tank 1 and the battery body 2. The two heat sinks 6 can dissipate heat of the electrolyte flowing into the battery body 2 and the electrolyte flowing out of the battery body 2, respectively. When the temperatures in the liquid storage tank 1 and the battery body 2 are both too high, the two radiators 6 positioned at the upstream and the downstream of the battery body 2 are simultaneously opened, so that the electrolyte flowing into and out of the battery body 2 can be radiated, and the distributed energy storage equipment can achieve the best radiating effect. When the temperature in the liquid storage tank 1 is too high and the temperature in the battery body 2 is normal, the radiator 6 located at the downstream of the battery body 2 is opened, and the radiator 6 located at the upstream of the battery body 2 is closed. The electrolyte in the lower reaches of the battery body 2 can rise through the temperature rise of charging and discharging, the temperature difference between the electrolyte and the outside is larger, the heat dissipation effect can be better achieved through the heat dissipation of the heat radiator 6 in the lower reaches of the battery body 2, because the temperature in the battery body 2 is normal, if the heat dissipation is carried out on the electrolyte through the heat radiator 6 in the upper reaches of the battery body 2, the temperature of the electrolyte can be excessively low (especially in severe cold weather), and the performance of the electrolyte in the battery body 2 can not be favorably exerted, therefore, the temperature of the electrolyte entering the battery body 2 can be ensured through the mode of closing the heat radiator 6 in the upper reaches of the battery body 2. When the temperature in the liquid storage tank 1 is normal and the temperature in the battery body 2 is too high, the radiator 6 located at the upstream of the battery body 2 is opened, and the radiator 6 located at the downstream of the battery body 2 is closed. The radiator 6 positioned at the upstream of the battery body 2 can radiate the electrolyte before entering the battery body 2 to reduce the temperature of the electrolyte, then the electrolyte enters the battery body 2 to radiate the heat of the battery body 2, the temperature in the liquid storage tank 1 is normal, the radiator 6 positioned at the downstream of the battery body 2 does not need to be opened to radiate the heat, if the radiator 6 positioned at the downstream of the battery body 2 is only opened to radiate the heat, the radiated electrolyte enters the liquid storage tank 1 to be mixed with the electrolyte in the liquid storage tank 1, the mixed electrolyte flows out of the liquid storage tank 1, the temperature of the flowing electrolyte is not reduced greatly, and the heat radiation effect on the battery body 2 is not good; if the radiators 6 located upstream and downstream of the battery body 2 are simultaneously turned on to radiate heat, the temperature inside the reservoir 1 may be lowered, which is disadvantageous to the temperature maintenance of the electrolyte inside the reservoir 1.
The electric control valve 7 and the circulating pump 5 are both connected with the charge and discharge circuit 3 and are powered by the charge and discharge circuit 3. The electric control valve 7 and the circulating pump 5 are both powered by the charging and discharging circuit 3, and the electric control valve and the circulating pump 5 can continue to work when power is cut off externally.
The bottom of the liquid storage tank 1 is provided with a liquid outlet 1.1, the side wall of the liquid storage tank 1 is provided with a liquid inlet 1.2, and the distance from the liquid inlet 1.2 to the top of the liquid storage tank 1 is greater than 1/5 of the height of the liquid storage tank 1 and less than 1/2 of the height of the liquid storage tank 1. Electrolyte in the liquid storage pot 1 can appear certain loss in the use, can not guarantee that liquid storage pot 1 keeps full of the state at any time, inlet 1.2 sets up on the lateral wall of liquid storage pot 1, even partial loss appears in the electrolyte, also can make inlet 1.2 be in under the electrolyte liquid level height, can avoid the electrolyte to fall from the top and send the noise. The liquid outlet 1.1 is arranged at the bottom of the liquid storage tank 1, so that the electrolyte entering the liquid storage tank 1 can be mixed in the liquid storage tank 1 as much as possible, the liquid outlet 1.1 then flows out from the liquid outlet 1.1, and the electrolyte in each position in the liquid storage tank 1 is fully utilized.
In this embodiment, the battery body 2 may be formed by alternately stacking a plurality of battery anodes 2.1 and a plurality of battery cathodes 2.2, and diaphragms are disposed between the battery anodes 2.1 and the battery cathodes 2.2, and the diaphragms are ion exchange membranes or proton exchange membranes commonly used in liquid batteries. The anodes 2.1 of the batteries are communicated with the anode liquid storage tank 1.3 through pipelines, and the cathodes 2.2 of the batteries are communicated with the cathode liquid storage tank 1.4 through pipelines.
Example 2:
as shown in fig. 1 and 2, an insulating layer 8 is arranged on the outer side of the liquid storage tank 1, a heating device 9 is arranged at the bottom of the liquid storage tank 1, and the heating device 9 is connected with the charge and discharge circuit 3. The heat preservation layer 8 can preserve heat of the liquid storage tank 1, and the phenomenon that the temperature of electrolyte in the liquid storage tank 1 is reduced too fast under a low-temperature environment to affect the working performance of the battery body 2 is avoided. The heating device 9 can actively heat the liquid storage tank 1, so that the liquid storage tank 1 is adaptive to a low-temperature environment.
The outer side of the battery body 2 is provided with a heat preservation shell 10, the heat preservation shell 10 is provided with an air inlet 10.1, an air outlet 10.2 and a heat radiation fan 10.3, and the heat radiation fan 10.3 is arranged at the air inlet 10.1. The heat preservation shell 10 can preserve heat of the battery body 2, and the phenomenon that the temperature of the battery body 2 is reduced too fast under a low-temperature environment to affect the working performance of the battery body 2 is avoided. The structure can ventilate and radiate the heat in the heat preservation shell 10, and can radiate the battery body 2 in an auxiliary way in a high-temperature environment. In another embodiment, the heat dissipation fan 10.3 is disposed at the air outlet 10.2.

Claims (8)

1. The utility model provides a distributed energy storage equipment for commercial complex, includes liquid storage pot, battery body and charge-discharge circuit, the liquid storage pot is including the anodal liquid storage pot that is equipped with anodal electrolyte and the negative pole liquid storage pot that is equipped with negative pole electrolyte, battery body and charge-discharge circuit establish ties, battery body includes battery positive pole, battery negative pole and is located the diaphragm between battery positive pole and the battery negative pole, the anodal both ends of battery form first liquid return circuit through pipeline and anodal liquid storage pot intercommunication respectively, and the both ends of battery negative pole form the second liquid return circuit through pipeline and negative pole liquid storage pot intercommunication respectively, and two liquid return circuits all are equipped with the circulating pump that is used for driving the interior electrolyte flow of liquid return circuit, and characterized by, have two radiators in parallel on at least one in two liquid return circuits, and two radiators set up the upper reaches and the low reaches of battery body respectively, the radiator is equipped with the electrically controlled valve with the liquid return circuit's of this radiator intercommunication department to control liquid return circuit in whether this radiator flows through this radiator of the pipeline of liquid return circuit, be equipped with temperature sensor in the liquid storage pot, be equipped with temperature sensor in the battery body.
2. A distributed energy storage apparatus for a commercial complex according to claim 1, wherein both said heat sinks are simultaneously turned on both upstream and downstream of the battery body when the temperature in the tank and in the battery body is too high; when the temperature in the liquid storage tank is overhigh and the temperature in the battery body is normal, the radiator positioned at the downstream of the battery body is opened, and the radiator positioned at the upstream of the battery body is closed; the temperature in the liquid storage tank is normal, and when the temperature in the battery body is too high, the radiator positioned at the upstream of the battery body is opened, and the radiator positioned at the downstream of the battery body is closed.
3. A distributed energy storage apparatus for a commercial complex according to claim 1, wherein the electrically controlled valve is disposed upstream of the radiator.
4. A distributed energy storage apparatus for a commercial complex according to claim 1, 2 or 3, wherein an insulating layer is provided outside the tank.
5. A distributed energy storage apparatus for a commercial complex as claimed in claim 1, 2 or 3 wherein the base of the tank is provided with heating means, said heating means being connected to a charging and discharging circuit.
6. A distributed energy storage apparatus for a commercial complex according to claim 1, 2 or 3 wherein the outside of the cell body is provided with a thermally insulating casing.
7. The distributed energy storage device of claim 6, wherein the thermal insulation housing is provided with an air inlet, an air outlet and a heat dissipation fan, and the heat dissipation fan is arranged at the air inlet or the air outlet.
8. A distributed energy storage apparatus for a commercial complex according to claim 1, 2 or 3, wherein the electrically controlled valve and the circulation pump are both connected to and powered by a charging and discharging circuit.
CN202211000704.XA 2022-08-19 2022-08-19 Distributed energy storage equipment for commercial complex Pending CN115377470A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211000704.XA CN115377470A (en) 2022-08-19 2022-08-19 Distributed energy storage equipment for commercial complex

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211000704.XA CN115377470A (en) 2022-08-19 2022-08-19 Distributed energy storage equipment for commercial complex

Publications (1)

Publication Number Publication Date
CN115377470A true CN115377470A (en) 2022-11-22

Family

ID=84065549

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Application Number Title Priority Date Filing Date
CN202211000704.XA Pending CN115377470A (en) 2022-08-19 2022-08-19 Distributed energy storage equipment for commercial complex

Country Status (1)

Country Link
CN (1) CN115377470A (en)

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