WO2023077811A1 - 储能预制仓及储能系统 - Google Patents

储能预制仓及储能系统 Download PDF

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Publication number
WO2023077811A1
WO2023077811A1 PCT/CN2022/098904 CN2022098904W WO2023077811A1 WO 2023077811 A1 WO2023077811 A1 WO 2023077811A1 CN 2022098904 W CN2022098904 W CN 2022098904W WO 2023077811 A1 WO2023077811 A1 WO 2023077811A1
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WO
WIPO (PCT)
Prior art keywords
energy storage
explosion
prefabricated
bin
proof valve
Prior art date
Application number
PCT/CN2022/098904
Other languages
English (en)
French (fr)
Inventor
刘越
王增忠
郑陈铃
Original Assignee
宁德时代新能源科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to EP22888847.5A priority Critical patent/EP4254631A1/en
Priority to CN202280015458.7A priority patent/CN116918153A/zh
Priority to KR1020237022711A priority patent/KR20230118604A/ko
Priority to JP2023542624A priority patent/JP2024503672A/ja
Publication of WO2023077811A1 publication Critical patent/WO2023077811A1/zh
Priority to US18/347,552 priority patent/US20230344067A1/en

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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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/317—Re-sealable arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/383—Flame arresting or ignition-preventing means
    • 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
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, 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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/317—Re-sealable arrangements
    • H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/20—Pressure-sensitive devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
    • 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

Definitions

  • the present application relates to the technical field of electrochemical energy storage equipment, in particular to an energy storage prefabricated bin and an energy storage system.
  • the energy storage prefabricated warehouse is a highly concentrated energy storage device formed by placing multiple battery boxes in the warehouse. It has the advantages of short construction time, convenient movement, and small footprint. It has been continuously used in various large-scale projects in recent years. get applied.
  • the exhaust device can only discharge the gas into the chamber, and the combustible gas in the chamber may still cause deflagration or explosion of the energy storage prefabricated chamber.
  • the application provides a prefabricated energy storage warehouse, including:
  • Battery boxes including boxes and battery modules
  • the exhaust device has an intake end and an exhaust end.
  • the intake end communicates with the inside of the box body, and the exhaust end communicates with the outside of the bin body.
  • the exhaust device is controlled to conduct or disconnect the intake end and the exhaust end. .
  • the air intake end and the exhaust end can be controlled to conduct , so that the gas is quickly discharged to the outside of the chamber instead of the chamber, so the contact between the high-temperature and high-pressure gas and the combustible gas in the chamber is avoided, and the deflagration or explosion of the energy storage prefabricated chamber will not be caused.
  • the exhaust device includes an explosion-proof valve assembly having an inlet port and an exhaust port. It can quickly respond to the pressure difference between the inside of the box and the outside of the bin, and conduct the operation of turning on or disconnecting the intake port and the exhaust port.
  • the exhaust device also includes a pipe body
  • the explosion-proof valve assembly includes an inner layer explosion-proof valve and an outer layer explosion-proof valve arranged at both ends of the pipe body, the inner layer explosion-proof valve has an inlet port, and the outer layer explosion-proof valve has an exhaust port. end.
  • the way of setting the double-layer explosion-proof valve can improve the stability and reliability of the conduction and disconnection of the intake end and the exhaust end.
  • the inner explosion-proof valve and the outer explosion-proof valve are relatively independent structures. It can improve the stability of the combination of the two.
  • the exhaust device has an insulating space, and the insulating space can be kept warm by the gas enclosed in the insulating space when the intake end is disconnected from the exhaust end. It can avoid the temperature loss of the battery box at the exhaust device, that is, the loss of the explosion-proof area, which will affect the thermal insulation performance.
  • the energy storage prefabricated bin also includes an insulation layer, and the insulation layer is arranged between the box body and the bin body. It can improve the overall thermal insulation effect of the energy storage prefabricated warehouse.
  • the insulation includes rock wool insulation.
  • Rock wool has good fire and flame retardant safety, and is non-toxic, tasteless, non-radioactive pollution, harmless to the environment and human body, and easy to construct.
  • the energy storage prefabricated bin further includes a first elastic sealing ring
  • the box body is provided with a first communication port connecting the interior of the box body with the interior of the bin body, and the first elastic sealing ring is arranged on the outside of the box body, And set around the first communication port;
  • the exhaust device is connected with the box body and communicates with the first communication port, and the first elastic sealing ring is compressed between the exhaust device and the box body. In this way, the exhaust device can be docked with the first communication port from the outside of the box without affecting the installation of the battery module in the box, and the sealing method is simple and the sealing stability is high.
  • the energy storage prefabricated bin further includes a second elastic sealing ring
  • the bin body is provided with a second communication port connecting the interior of the bin body with the exterior of the bin body
  • the exhaust device is provided with the second communication port
  • the second The elastic sealing ring is compressed between the exhaust device and the inner wall of the second communication port.
  • the present application provides an energy storage system, including the above-mentioned prefabricated energy storage bin.
  • the air intake end and the exhaust end can be controlled to conduct , so that the gas is quickly discharged to the outside of the chamber instead of the chamber, so the contact between the high-temperature and high-pressure gas and the combustible gas in the chamber is avoided, and the deflagration or explosion of the energy storage prefabricated chamber will not be caused.
  • Fig. 1 is a three-dimensional structural schematic diagram of a prefabricated energy storage bin in an embodiment of the present application
  • Fig. 2 is a schematic cross-sectional structure diagram of a partial structure of a prefabricated energy storage bin in an embodiment of the present application
  • Fig. 3 is a schematic structural diagram of a partial structure of an energy storage system in an embodiment of the present application.
  • Energy storage prefabricated bin 100 bin body 10, battery box 20, box body 21, battery module 22, exhaust device 30, air intake end 31, exhaust end 32, explosion-proof valve assembly 33, inner explosion-proof valve 331, outer Layer explosion-proof valve 332, pipe body 34, heat preservation space 35, heat preservation layer 40, energy storage system 200, electrical warehouse 210.
  • multiple refers to more than two (including two), similarly, “multiple groups” refers to more than two groups (including two), and “multiple pieces” refers to More than two pieces (including two pieces).
  • an explosion-proof valve is arranged on one side of the box body of the battery box, so that the high-temperature gas generated by the battery cells inside the box body is directly discharged out of the box body through the explosion-proof valve.
  • the explosion-proof valve can reduce the explosion of the battery box to a certain extent, the gas discharged to the outside of the battery box will flow into the cabin of the energy storage prefabricated cabin, and then interact with the combustible gas in the cabin. When the gas meets, it will bring a new danger of deflagration or explosion of the energy storage prefabricated warehouse.
  • Fig. 1 shows a schematic three-dimensional structural view of a prefabricated energy storage bin in an embodiment of the present application
  • Fig. 2 is a schematic cross-sectional structural view of a partial structure of a prefabricated energy storage bin in an embodiment of the present application.
  • the drawings only show structures related to the embodiments of the present application.
  • an embodiment of the present application provides a bin body 100 , including a bin body 10 , a battery box 20 and an exhaust device 30 .
  • the bin body 100 of the present application is applied to an energy storage system 200 .
  • the energy storage system 200 may also include other bins, such as the electrical bin 210, the fire bin, etc., which are well known to those skilled in the art and will not be described in detail here.
  • the bin body 100 may be a prefabricated liquid-cooled energy storage bin, or a prefabricated energy storage bin with other cooling methods, which is not limited here.
  • the battery box 20 includes a box body 21 and a battery module 22 disposed in the box body 21 .
  • the battery module 22 is formed by combining a plurality of battery cells, and the plurality of battery cells are arranged in series or in parallel.
  • the bin body 100 may include a plurality of battery boxes 20, and the plurality of battery boxes 20 may be arranged in sequence along the width direction of the bin body 10.
  • one battery box 20 may include a plurality of battery modules 22, and a plurality of The battery modules 22 can be arranged along the height direction of the battery box 20 .
  • the exhaust device 30 has an intake port 31 and an exhaust port 32.
  • the intake port 31 communicates with the inside of the box body 21, and the exhaust port 32 communicates with the outside of the bin body 10.
  • the exhaust device 30 is controlled to be turned on or off.
  • An intake port 31 and an exhaust port 32 . It should be noted that, in order to ensure the airtightness between the exhaust device 30 and the box body 21 and the box body 10, and prevent the gas in the box body 21 from flowing into the box body 10, or the outside air from flowing into the box body 21, the box body A sealing structure should be provided between the body 21 and the air inlet end 31 and between the bin body 10 and the air outlet end 22.
  • multiple exhaust devices 30 may also be included, and the multiple exhaust devices 30 are provided in one-to-one correspondence with the multiple battery boxes 20 .
  • the one-to-one correspondence enables the exhaust device 30 to quickly respond to the corresponding state of the internal pressure of the battery box 20 and improves the reliability of the exhaust.
  • at least two battery boxes 20 can also share the same exhaust device 30, and the boxes 21 of at least two battery boxes 20 communicate with each other, and the exhaust device 30 is arranged in the box of one of the battery boxes 20 Body 21. In this way, the exhaust effect can also be achieved.
  • the air intake port 31 and the exhaust port 32 can be controlled to conduct, thereby quickly
  • the gas is exhausted to the outside of the bin body 10 rather than inside the bin body 10, so the contact between the high-temperature and high-pressure gas and the combustible gas in the bin body 10 is avoided, and the deflagration or explosion of the energy storage prefabricated bin 100 will not be caused.
  • the exhaust device 30 includes an explosion-proof valve assembly 33 , and the explosion-proof valve assembly 33 has an inlet port 31 and an exhaust port 32 .
  • the explosion-proof valve assembly 22 By setting the explosion-proof valve assembly 22 , it is possible to quickly respond to the pressure difference between the inside of the box body 21 and the outside of the bin body 10 , and conduct or disconnect the inlet port 31 and the exhaust port 32 .
  • the inlet port 31 and the exhaust port 32 are connected, and the gas can be guided from the inside of the box body 21 to the warehouse body 10.
  • the air inlet port 31 is disconnected from the exhaust port 32, so that other gases outside the warehouse body 10 cannot enter the interior of the box body 21 .
  • the explosion-proof valve assembly 22 can also have a preset pressure difference. When the preset pressure difference is reached, the inlet port 31 and the exhaust port 32 are connected. When the pressure difference is preset, the intake port 31 is disconnected from the exhaust port 32 , wherein the preset pressure difference is a non-zero value.
  • the exhaust device 30 also includes a pipe body 34
  • the explosion-proof valve assembly 33 includes an inner layer explosion-proof valve 331 and an outer layer explosion-proof valve 332 arranged at both ends of the pipe body 34
  • the inner layer explosion-proof valve 331 has an inlet port 31
  • the outer layer explosion-proof valve 332 has an exhaust port 32 .
  • the arrangement of the double-layer explosion-proof valve can improve the stability and reliability of the connection and disconnection between the intake port 31 and the exhaust port 32 .
  • both ends of the pipe body 34 have a first installation port and a second installation port, the inner explosion-proof valve 331 is sealed and installed at the first installation port, and the outer layer explosion-proof valve 332 is sealed and installed at the second installation port.
  • the first installation opening and the second installation opening are oppositely arranged along the installation direction of the battery box 20 relative to the bin body 10 .
  • the length of the tube body 34 can be shortened and the space occupied by it can be reduced.
  • the inner layer explosion-proof valve 331 and the outer layer explosion-proof valve 332 are two separate explosion-proof valves, not an explosion-proof valve integrally arranged, that is, the inner layer explosion-proof valve 331 and the outer layer explosion-proof valve 332 are opposite independent structure. In this way, the stability of the cooperation between the two can be improved.
  • the inner explosion-proof valve 331 and the outer explosion-proof valve 332 can also be an integrated structure, which is not limited here.
  • the gas generated by the battery cells increases the internal air pressure of the box body 21, and the inner explosion-proof valve 331 opens when it reaches the cracking pressure due to the pressure difference on both sides, so that the box body
  • the gas inside 21 flows into the pipe body 34, thereby flowing to the outer layer explosion-proof valve 332, and the outer layer explosion-proof valve 332 opens when reaching the cracking pressure due to the pressure difference on both sides, and then makes the gas flow to the outside of the warehouse body 10. Therefore, the gas flow path in the box body 21 passes through the inner layer explosion-proof valve 331 , the pipe body 34 , and the outer layer explosion-proof valve 332 in sequence, and finally reaches the outside of the warehouse body 10 .
  • the exhaust device 30 has an insulated space 35 which can be insulated by the gas sealed in the insulated space 35 when the inlet port 31 is disconnected from the exhaust port 32 . In this way, the temperature of the battery box 20 can be prevented from being lost at the exhaust device 30 , that is, at the explosion-proof area, thereby affecting the heat preservation performance.
  • the pipe body 34 , the inner explosion-proof valve 331 and the outer explosion-proof valve 332 enclose the heat preservation space 35 .
  • the thermal insulation space 23 is used as a space connecting the exhaust end 21 and the intake end 22, and cannot be filled with other thermal insulation materials, otherwise the communication between the exhaust end 21 and the intake end 22 will be affected. relationship, affecting the normal exhaust function of the exhaust device 30.
  • the bin body 100 further includes an insulating layer 40 disposed between the box body 21 and the bin body 10 .
  • Setting the insulation layer 40 can also strengthen the insulation effect on the battery box 20 .
  • the insulation layer 40 is provided with escape holes for avoiding the exhaust device 30 . That is to say, the insulation layer 40 is arranged in the explosion-proof area where the non-explosion-proof valve assembly 33 is located, so that the thermal insulation effect at the non-explosion-proof area can be improved.
  • the insulation layer 40 is disposed on the inner wall of the container body 10 . More specifically, the thermal insulation layer 40 can be covered on one inner wall of the entire warehouse body 10, or on all inner walls of the warehouse body 10, so as to achieve a good thermal insulation effect.
  • the insulation layer 40 includes a rock wool insulation layer. In other embodiments, it may also be a glass wool insulation layer or a ceramic insulation layer, which is not limited here.
  • Rock wool has good fire and flame retardant safety, and is non-toxic, tasteless, non-radioactive pollution, harmless to the environment and human body, and easy to construct.
  • the bin body 100 further includes a first elastic sealing ring for sealing the box body 21 and the exhaust device 30 .
  • the box body 21 is provided with a first communication port connecting the interior of the box body 21 and the interior of the warehouse body 10
  • the first elastic sealing ring is arranged on the outside of the box body 21, and is arranged around the first communication port
  • the exhaust device 30 is connected to the box body 21 and communicates with the first communication port, and the first elastic sealing ring is compressed between the exhaust device 30 and the box body 21 .
  • the exhaust device 30 can be docked with the first communication port from the outside of the box body 21 without affecting the installation of the battery module 22 in the box body 21 , and the sealing method is simple and the sealing stability is high.
  • the first elastic sealing ring is compressed between the inner explosion-proof valve 331 and the box body 21 .
  • the inner explosion-proof valve 331 can be connected to the outer wall of the box body 21 by screws, so as to compress the first elastic sealing ring. More specifically, there are multiple screws, and multiple screws are spaced around the inner explosion-proof valve 331 to achieve connection reliability.
  • the bin body 100 further includes a second elastic sealing ring
  • the bin body 10 is provided with a second communication port connecting the interior of the bin body 10 with the exterior of the bin body 10
  • the exhaust device 30 is provided with the second communication port
  • the second elastic sealing ring is compressed between the exhaust device 30 and the inner wall of the second communication port.
  • the second elastic sealing ring is compressed between the outer explosion-proof valve 332 and the inner wall of the second communication port.
  • the box body 21 has a skin, the second communication port is pierced through the skin, and the second elastic sealing ring is compressed between the outer explosion-proof valve 332 and the inner wall of the skin corresponding to the second communication port.
  • the second elastic sealing ring is compressed between the exhaust device 30 and the inner wall of the second communication port.
  • the sealing form is simple and reliable.
  • the structure of the exhaust device 30 on the outside of the warehouse body 10, so as to avoid being damaged by the impact of the external environment.
  • the intake end 31 of the exhaust device 30 is on the outside of the warehouse body 10, and the second communication port of the warehouse body 10 is penetrated to the inside of the warehouse body 10, and then communicated with the first The ports are docked, and the exhaust end 32 can be installed at the second communication port.
  • the first elastic sealing ring and the second elastic sealing ring can be compressed to achieve sealing.
  • the exhaust device 30 is located on the opposite side of the battery box 20 to the bin body 10 along its installation direction relative to the bin body 10.
  • the gas device 30 is disposed at the bottom of the battery box 20 along the installation direction.
  • the exhaust device 30 may also be located in other parts of the battery box 20 , such as a side part, which is not limited here.
  • Fig. 3 shows a schematic structural diagram of a partial structure of an energy storage system in an embodiment of the present application.
  • the present application also provides an energy storage system 200 , including the above-mentioned bin body 100 .
  • the energy storage system 200 also includes other bins, such as the electrical bin 210 and the fire bin.
  • the bin body 100 and the energy storage system 200 provided in the embodiment of the present application have the following beneficial effects.
  • the air inlet port 31 and the exhaust port 32 can be controlled to conduct, thereby quickly dissipating The gas is discharged to the outside of the bin body 10 instead of inside the bin body 10, so the contact between the high temperature and high pressure gas and the combustible gas in the bin body 10 is avoided, and the deflagration or explosion of the energy storage prefabricated bin 100 will not be caused.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Gas Exhaust Devices For Batteries (AREA)

Abstract

本申请涉及一种储能预制仓(100)及储能系统(200)，储能预制仓(100)包括仓体(10)；电池箱(20)，包括箱体(21)及电池模组(22)；以及排气装置(30)，具有进气端(31)和排气端(32)，进气端(31)与箱体(21)的内部连通，排气端(32)与仓体(10)的外部连通，排气装置(30)受控导通或断开进气端(31)与排气端(32)。通过设置排气装置(30)，可在电池单体因发生热失控，而在电池箱(20)内产生大量的高温高压气体时，受控使进气端(31)与排气端(32)导通，从而快速地将气体排出至仓体(10)的外部，而非仓体(10)内，故避免了高温高压的气体与仓体(10)内的可燃气体接触，不会造成储能预制仓(100)的爆燃或爆炸。

Description

储能预制仓及储能系统
交叉引用
本申请引用于2021年11月04日递交的名称为“储能预制仓及储能系统”的第202122685670.X号中国专利申请，其通过引用被全部并入本申请。
技术领域
本申请涉及电化学储能设备技术领域，特别是涉及一种储能预制仓及储能系统。
背景技术
储能预制仓，是将多个电池箱放置在仓体内而形成一个高度集中的储能装置，具有施工时间短、移动方便、占地面积小等优点，近年来已在各类大型工程中不断得到应用。
通常情况下，电池箱内的电池模组中的电池单体在发生热失控时，会产生大量的高温高压气体，为了避免电池箱炸裂，需要将气体及时排出。
但一些情形下的排气装置仅能将气体排至仓体内，仓体内的可燃气体仍然有可能造成储能预制仓的爆燃或爆炸。
发明内容
基于此，有必要针对的一些情形下的储能预制仓的排气装置仅能将气体排至仓体内，仍然会造成储能预制仓的爆燃或爆炸的问题，提供一种避免气体排至仓体内，且不会造成储能预制仓的爆燃或爆炸的储能预制仓及储能系统。
第一方面，本申请提供了一种储能预制仓，包括：
仓体；
电池箱，包括箱体及电池模组；以及
排气装置，具有进气端和排气端，进气端与箱体的内部连通，排气端与仓体的外部连通，排气装置受控导通或断开进气端与排气端。
本申请实施例的技术方案中，通过设置排气装置，可在电池单体因发生热失控，而在电池箱内产生大量的高温高压气体时，受控使进气端与排气端导通，从而快速地将气体排出至仓体的外部，而非仓体内，故避免了高温高压的气体与仓体内的可燃气体接触，不会造成储能预制仓的爆燃或爆炸。
在一些实施例中，排气装置包括防爆阀组件，防爆阀组件具有进气端与排气端。能够快速地响应箱体内部与仓体外部两侧的压力差值，并作出导通或者断开进气端与排气端的操作。
在一些实施例中，排气装置还包括管体，防爆阀组件包括设于管体两端的内层防爆阀和外层防爆阀，内层防爆阀具有进气端，外层防爆阀具有排气端。设置双层防爆阀的方式，能够提高进气端与排气端导通与断开的稳定性和可靠性。
在一些实施例中，内层防爆阀与外层防爆阀为相对独立的结构。可提高两者配合的稳定性。
在一些实施例中，排气装置具有保温空间，保温空间能够在进气端与排气端断开时，通过封闭在保温空间内的气体保温。可避免电池箱的温度在排气装置处流失，也就是防爆区域流失，进而影响保温性能。
在一些实施例中，储能预制仓还包括保温层，保温层设于箱体与仓体之间。可提升储能预制仓的整体保温效果。
在一些实施例中，保温层包括岩棉保温层。岩棉具有良好的防火阻燃安全性，并且无毒、无味、无放射性污染，对环境和人体无害，另外，施工简便。
在一些实施例中，储能预制仓还包括第一弹性密封圈，箱体开设有连通箱体的内部与仓体的内部的第一连通口，第一弹性密封圈设于箱体的外侧，且环绕第一连通口设置；
排气装置与箱体相连，并与第一连通口连通，第一弹性密封圈压缩于排气装置与箱体之间。如此，排气装置可在从箱体的外侧与第一连通口对接，不影响电池模组在箱体内的安装，且密封方式简单，密封稳定性高。
在一些实施例中，储能预制仓还包括第二弹性密封圈，仓体开设有连通仓体的内部与仓体的外部的第二连通口，排气装置穿设第二连通口，第二弹性密封圈压缩于排气装置与第二连通口的内壁之间。一方面密封形式简单且密封可靠，另一方面，相较于前述的第一弹性密封圈的压缩方式，不用额外增加排气装置在仓体外侧的结构，避免受外部环境碰撞受损。
第二方面，本申请提供了一种储能系统，包括上述的储能预制仓。
本申请实施例的技术方案中，通过设置排气装置，可在电池单体因发生热失控，而在电池箱内产生大量的高温高压气体时，受控使进气端与排气端导通，从而快速地将气体排出至仓体的外部，而非仓体内，故避免了高温高压的气体与仓体内的可燃气体接触，不会造成储能预制仓的爆燃或爆炸。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领 域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据附图获得其他的附图。在附图中：
图1为本申请一实施例中的储能预制仓的立体结构示意图；
图2为本申请一实施例中的储能预制仓的部分结构的剖面结构示意图；
图3为本申请一实施例中的储能系统的部分结构的结构示意图。
储能预制仓100、仓体10、电池箱20、箱体21、电池模组22、排气装置30、进气端31、排气端32、防爆阀组件33、内层防爆阀331、外层防爆阀332、管体34、保温空间35、保温层40、储能系统200、电气仓210。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施 例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
正如背景技术所言，电池单体在发生热失控时，会产生大量的高温高压气体，若不及时将气体排气，将导致电池箱的箱体炸裂，进而使得外部空气进入电池箱内部，而产生明火，故需要及时将气体排出。
目前的电池箱内均是通过在电池箱的箱体的一侧上设置防爆阀，以将位于箱体内部的电池单体所产生的高温气体通过防爆阀直接排出箱体外。
但经申请人研究发现，虽然防爆阀在一定程度上能够降低电池箱的炸裂，但由于排出至电池箱的箱体的外侧的气体会流入储能预制仓的仓体内，进而与仓体内的可燃气体相遇，会带来使储能预制仓爆燃或爆炸的新的危险。
因此，需要提供一种避免气体排至储能预制仓内，且不会造成储能预制仓的爆燃或爆炸的储能预制仓及储能系统。
图1示出了本申请一实施例中的储能预制仓的立体结构示意图，图2为本申请一实施例中的储能预制仓的部分结构的剖面结构示意图。为便于描述，附图仅示出了与本申请实施例相关的结构。
参阅上述附图，本申请一实施例提供一种仓体100，包括仓体10、电池箱20以及排气装置30。本申请的仓体100应用于储能系统200。可以理解，储能系统200还可以包括其他仓，例如电气仓210、消防仓等，此为本领域技术人员熟知，在此不作详述。
具体地，仓体100可为液冷储能预制仓，也可以为具有其他冷却方式的储能预制仓，在此不作限制。
电池箱20包括箱体21及设于箱体21内的电池模组22，可以理解，电池模组22由多个电池单体组合形成，多个电池单体之间串联或者并联设置。需要指出的是，仓体100可包括多个电池箱20，多个电池箱20可沿仓体10的宽度方向依次排列，当然，一个电池箱20内可包括多个电池模组22，多个电池模组22可沿电池箱20的高度方向排列设置。
排气装置30具有进气端31和排气端32，进气端31与箱体21的内部连通，排气端32与仓体10的外部连通，排气装置30受控导通或断开进气端31与排气端32。需要说明的是，为了确保排气装置30与箱体21及仓体10之间的密封性，而避免箱体21内的气体流至仓体10内，或者外部气体流入箱体21内，箱体21与进气端31及仓体10与出气端22之间均应当设有密封结构。
在本申请的实施例中，在电池箱20包括多个的情况下，排气装置30也可包括多个，多个排气装置30与多个电池箱20一一对应设置。一一对应的方式能够使排气装置30快速地响应对应的电池箱20内部压力的状态，提高排气的可靠性。在其他一些实施例中，至少两个电池箱20也可共用同一排气装置30，及至少两个电池箱20的箱体21彼此连通，而排气装置30设置于其中一个电池箱20的箱体21上。如此，也能达到排气效果。
如此，通过设置排气装置30，可在电池单体因发生热失控，而在电池箱20内产生大量的高温高压气体时，受控使进气端31与排气端32导通，从而快速地将气体排出至仓体10的外部，而非仓体10内，故避免了高温高压的气体与仓体10内的可燃气体接触，不会造成储能预制仓100的爆燃或爆炸。
请继续参阅图2，具体到本申请的实施例中，排气装置30包括防爆阀组件33，防爆阀组件33具有进气端31及排气端32。通过设置防爆阀组件22，能够快速地响应箱体21内部与仓体10外部两侧的压力差值，并作出导通或者断开进气端31与排气端32的操作。
具体在一些实施方式中，当箱体21的内部气体压力大于仓体10的外部气体压力时，进气端31与排气端32导通，可引导气体自箱体21的内部向仓体10的外部排出，而当箱体21的内部气体压力小于或等于仓体10的外部压力时，进气端31与排气端32断开，使得仓体10外部的其他无法进入箱体21的内部。当然，在其他实施方式中，也可使防爆阀组件22具有一个预设压力差值，当达到该个预设压力差值时，进气端31与排气端32导通，当未达到该预设压力差值时，进气端31与排气端32断开，其中，预设压力差值为非零值。
进一步地，排气装置30包括还包括管体34，防爆阀组件33包括设于管体34两端的内层防爆阀331和外层防爆阀332，内层防爆阀331具有进气端31，外层防爆阀332具有排气端32。设置双层防爆阀的方式，能够提高进气端31与排气端32导通与断开的稳定性和可靠性。具体地，管体34的两端具有第一安装口和第二安装口，内层防爆阀331密封安装于第一安装口处，外层防爆阀332，密封安装于第二安装口处。在一些实施例中，第一安装口与第二安装口沿电池箱20相对仓体10的安装方向相对设置。如此，可缩短管体34的长度，减少其占用空间。需要指出，防爆阀具体的结构形式是多样化的，其为本领域技术人员熟知的技术，在此不再赘述。
在本申请的实施方式中，内层防爆阀331和外层防爆阀332为单独的两个防爆阀，并非一体设置的一个防爆阀，也即内层防爆阀331和外层防爆阀332为相对独立的结构。如此，可提高两者配合的稳定性。当然，内层防爆阀331和外层防爆阀332也可以为一个集成的结构，在此不作限制。
具体到实际应用中，当电池单体热失控，电池单体产生的气体使得箱体21的内部气压升高，内层防爆阀331由于两侧压力差而达到开启压力时开启，故使箱体21内部的气体流向管体34内，从而流向外层防爆阀332，外层防爆阀332由于两侧压力差而达到开启压力时 开启，进而使气体流向仓体10的外部。故箱体21内的气体流向路径为依次经内层防爆阀331、管体34、外层防爆阀332，最后达到仓体10的外部。
在一些实施例中，排气装置30具有保温空间35，保温空间35能够在进气端31与排气端32断开时，通过密封在保温空间35内的气体保温。如此，可避免电池箱20的温度在排气装置30处流失，也就是防爆区域流失，进而影响保温性能。
具体地，管体34、内层防爆阀331及外层防爆阀332围合形成该保温空间35。需要指出的是，在本申请的实施例中，保温空间23作为连通排气端21与进气端22的空间，不能填充其他保温材质，否则会影响排气端21与进气端22的连通关系，影响排气装置30的正常排气功能。
在一些实施例中，仓体100还包括保温层40，保温层40设于箱体21与仓体10之间。设置保温层40也可加强对电池箱20的保温作用。具体地，保温层40开设有避让排气装置30的避位孔。也即保温层40设于非防爆阀组件33所在的防爆区域，如此，可提升非防爆区域处的保温效果。在一些实施方式中，保温层40设于仓体10的内壁上。更具体地，保温层40可覆设在整个仓体10的一侧内壁上，或者是仓体10的所有内壁上，以达到良好的保温效果。
在一些实施方式中，保温层40包括岩棉保温层。在其他实施方式中，也可以是玻璃棉保温层或者陶瓷保温层等，在此不作限制。岩棉具有良好的防火阻燃安全性，并且无毒、无味、无放射性污染，对环境和人体无害，另外，施工简便。
在一些实施例中，仓体100还包括第一弹性密封圈，第一弹性密封圈用于密封箱体21与排气装置30。具体地，箱体21开设有连通箱体21的内部与仓体10的内部的第一连通口，第一弹性密封圈设于箱体21的外侧，且环绕第一连通口设置，排气装置30与箱体21相连，并与第一连通口连通，第一弹性密封圈压缩于排气装置30与箱体21之间。如此，排气装置30可在从箱体21的外侧与第一连通口对接，不影响电池模组22在箱体21内的安装，且密封方式简单，密封稳定性高。在本申请的实施例中，第一弹性密封圈压缩于内层防爆阀331与箱体21之间。具体地，可通过螺钉将内层防爆阀331连接在箱体21的外壁上，以压缩第一弹性密封圈。更具体地，螺钉数量为多个，多个螺钉环绕内层防爆阀331间隔设置，以实现连接的可靠性。
在一些实施例中，仓体100还包括第二弹性密封圈，仓体10开设有连通仓体10的内部与仓体10的外部的第二连通口，排气装置30穿设第二连通口，第二弹性密封圈压缩于排气装置30与第二连通口的内壁之间。在本申请的实施例中，第二弹性密封圈压缩于外层防爆阀332与第二连通口的内壁之间。具体地，箱体21具有蒙皮，第二连通口穿设蒙皮，第二弹性密封圈压缩于外层防爆阀332与第二连通口对应的蒙皮处的内壁之间。第二弹性密封圈压缩于排气装置30与第二连通口的内壁之间的方式，一方面密封形式简单且密封可靠，另一方 面，相较于前述的第一弹性密封圈的压缩方式，不用额外增加排气装置30在仓体10外侧的结构，避免受外部环境碰撞受损。
在具体地排气装置30的安装过程中，排气装置30的进气端31在仓体10的外侧，穿设仓体10的第二连通口至仓体10的内部，进而与第一连通口对接，且排气端32能够安装在第二连通口处，另外，在该安装过程中，能够使第一弹性密封圈及第二弹性密封圈压缩以实现密封。
为了避免电池箱20在仓体10内部的安装过程与排气装置30产生位置干扰，设置排气装置30位于电池箱20沿其相对仓体10的安装方向与仓体10的相对侧，即排气装置30设于电池箱20沿安装方向的底部。在其他实施例中，排气装置30也可以按照在电池箱20的其他部位，例如侧部，在此不作限制。
图3示出了本申请一实施例中的储能系统的部分结构的结构示意图。
参阅图3，基于同样的发明构思，本申请还提供一种储能系统200，包括上述的仓体100。
具体地，储能系统200还包括其他仓，例如电气仓210及消防仓等。
本申请实施例提供的仓体100及储能系统200，具有以下有益效果。
通过设置排气装置30，可在电池单体因发生热失控，而在电池箱20内产生大量的高温高压气体时，受控使进气端31与排气端32导通，从而快速地将气体排出至仓体10的外部，而非仓体10内，故避免了高温高压的气体与仓体10内的可燃气体接触，不会造成储能预制仓100的爆燃或爆炸。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (10)

  1. 一种储能预制仓(100)，包括：
    仓体(10)；
    电池箱(20)，包括箱体(21)及电池模组(22)；以及
    排气装置(30)，具有进气端(31)和排气端(32)，所述进气端(31)与所述箱体(21)的内部连通，所述排气端(32)与所述仓体(10)的外部连通，所述排气装置(30)受控导通或断开所述进气端(31)与所述排气端(32)。
  2. 根据权利要求1所述的储能预制仓(100)，其中，所述排气装置(30)包括防爆阀组件(33)，所述防爆阀组件(33)具有所述进气端(31)与所述排气端(32)。
  3. 根据权利要求2所述的储能预制仓(100)，其中，所述排气装置(30)还包括管体(34)，所述防爆阀组件(33)包括设于所述管体(34)两端的内层防爆阀(331)和外层防爆阀(332)，所述内层防爆阀(331)具有所述进气端(31)，所述外层防爆阀(332)具有所述排气端(32)。
  4. 根据权利要求3所述的储能预制仓(100)，其中，所述内层防爆阀(331)与所述外层防爆阀(332)为相对独立的结构。
  5. 根据权利要求1-4任一项所述的储能预制仓(100)，其中，所述排气装置(30)具有保温空间(35)，所述保温空间(35)能够在所述进气端(31)与所述排气端(32)断开时，通过封闭在所述保温空间(35)内的气体保温。
  6. 根据权利要求1-5任一项所述的储能预制仓(100)，其中，所述储能预制仓(100)还包括保温层(40)，所述保温层(40)设于所述箱体(21)与所述仓体(10)之间。
  7. 根据权利要求5所述的储能预制仓(100)，其中，所述保温层(40)包括岩棉保温层(40)。
  8. 根据权利要求1-5任一项所述的储能预制仓(100)，其中，所述储能预制仓(100)还包括第一弹性密封圈，所述箱体(21)开设有连通所述箱体(21)的内部与所述仓体(10)的内部的第一连通口，所述第一弹性密封圈设于所述箱体(21)的外侧，且环绕所述第一连通口设置；
    所述排气装置(30)与所述箱体(21)相连，并与所述第一连通口连通，所述第一弹性密封圈压缩于所述排气装置(30)与所述箱体(21)之间。
  9. 根据权利要求1-5任一项所述的储能预制仓(100)，其中，所述储能预制仓(100)还包括第二弹性密封圈，所述仓体(10)开设有连通所述仓体(10)的内部与所述仓体(10)的外部的第二连通口，所述排气装置(30)穿设所述第二连通口，所述第二弹性密封圈压缩于排气装置(30)与所述第二连通口的内壁之间。
  10. 一种储能系统(200)，其中，包括如权利要求1-9任一项所述的储能预制仓(100)。
PCT/CN2022/098904 2021-11-04 2022-06-15 储能预制仓及储能系统 WO2023077811A1 (zh)

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