WO2022033299A1 - 一种用于储能设备的空调系统及储能系统 - Google Patents

一种用于储能设备的空调系统及储能系统 Download PDF

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Publication number
WO2022033299A1
WO2022033299A1 PCT/CN2021/108687 CN2021108687W WO2022033299A1 WO 2022033299 A1 WO2022033299 A1 WO 2022033299A1 CN 2021108687 W CN2021108687 W CN 2021108687W WO 2022033299 A1 WO2022033299 A1 WO 2022033299A1
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Prior art keywords
energy storage
conditioning system
air conditioning
storage device
circulation module
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PCT/CN2021/108687
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English (en)
French (fr)
Inventor
尹韶文
尹雪芹
王志伟
阳贵波
李韩伟
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比亚迪股份有限公司
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Publication of WO2022033299A1 publication Critical patent/WO2022033299A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—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
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • the present application belongs to the technical field of energy storage devices, and in particular relates to an air conditioning system and an energy storage system for energy storage devices.
  • Existing energy storage devices are installed on top of an overhead air conditioning system to cool the battery modules.
  • the overhead air-conditioning system is an integrated air-cooled air-conditioning system.
  • the air in the box is circulated from the top of the box of the energy storage device to the upper and back, so that the cold air generated during the working process of the overhead air-conditioning system circulates in the box. flow to make the temperature in the box more uniform and improve the cooling effect.
  • the integrated air conditioning system sets all structures on the top of the energy storage device, the overall height of the energy storage device increases a lot, increases the transportation cost, and the space utilization rate in the height direction is low.
  • the technical problem to be solved by the present application is: aiming at the problem that the air-conditioning system of the existing energy storage device is integrally arranged on the top of the energy storage device, resulting in the problem of low space utilization in the height direction of the energy storage device, an air conditioning system for the energy storage device is provided. Air conditioning system and energy storage system of energy storage equipment.
  • the embodiments of the present application provide an air conditioning system for energy storage equipment, including an inner circulation module and an outer circulation module, the inner circulation module and the outer circulation module are connected by a refrigerant pipe, and the inner circulation module and the outer circulation module are connected by a refrigerant pipe.
  • the circulation module is placed inside the energy storage device, and the outer circulation module is placed on top of the energy storage device.
  • the outer circulation module includes a plurality of condensation units, and the plurality of condensation units are arranged side by side.
  • the condensing unit includes a casing, a condenser and a condensing fan, the condenser and the condensing fan are arranged in the casing, an air inlet and an air outlet are provided on the casing, and the condensing fan is The condenser and the condensing fan are located on the channel between the air inlet and the air outlet.
  • the air outlet is located on a side of the housing away from the energy storage device.
  • the inner circulation module includes an outer frame and an electric control unit, a compressor, a liquid storage tank, a heat exchanger, an expansion valve and a water pump arranged in the outer frame, the compressor and the water pump are respectively electrically connected with the electronic control unit;
  • the compressor, the condenser, the expansion valve, the heat exchanger and the liquid storage tank are connected in sequence to form a refrigerant circulation system; the water pump, the heat exchanger and the The liquid cooling devices of the battery modules of the energy equipment are connected in sequence to form an antifreeze liquid circulation system.
  • two refrigerant circulation systems are provided, and the two refrigerant circulation systems share the heat exchanger.
  • the internal circulation module further includes a filter device, and the water pump, the heat exchanger, the liquid cooling device and the filter device are connected in sequence to form the antifreeze liquid circulation system.
  • the internal circulation module further includes an expansion tank and a heating water tank, and the water pump, the heat exchanger, the liquid cooling device, the filtering device and the heating water tank are connected in sequence to form the antifreeze liquid.
  • the opening of the expansion tank is connected to the pipeline between the heating water tank and the water pump.
  • the present application also provides an energy storage system, including an energy storage device and the air conditioning system described in any of the foregoing technical solutions.
  • the external circulation module of the air conditioning system of the present application is installed on the energy storage device, and there is no need to occupy additional space for placement, thereby reducing the need for air conditioning.
  • the total area of the system; and the air conditioning system is divided into an inner circulation module placed inside the energy storage device and an outer circulation module placed on the top of the energy storage device, so as to avoid the installation of the integrated air conditioning system on the top of the energy storage device, which may lead to the failure of the energy storage device.
  • the overall height increases more, which reduces the increase of the air conditioning system in the height direction of the energy storage device, avoids a significant increase in transportation costs, and improves the space utilization in the height direction of the energy storage device.
  • FIG. 1 is a schematic structural diagram of an air conditioning system for an energy storage device provided by an embodiment of the present application
  • Fig. 2 is the structural representation of condensation unit in Fig. 1;
  • Fig. 3 is the A-A sectional view of Fig. 2;
  • Fig. 4 is the structural representation of inner circulation module among Fig. 1;
  • FIG. 5 is a schematic diagram of an air conditioning system for an energy storage device provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of an air conditioning system for an energy storage device according to another embodiment of the present application.
  • the air conditioning system for an energy storage device includes an inner circulation module 2 and an outer circulation module 1.
  • the inner circulation module 2 and the outer circulation module 1 are connected by a refrigerant pipe 3, and the inner circulation module 2 is placed inside the energy storage device, and the external circulation module 1 is placed on the top of the energy storage device.
  • the external circulation module 1 of the air conditioning system of the present application is installed on the energy storage device, and there is no need to occupy additional space for placement, thereby reducing the total occupation of the air conditioning system. and the air conditioning system is divided into an inner circulation module 2 placed inside the energy storage device and an outer circulation module 1 placed on the top of the energy storage device, to avoid the integrated air conditioning system being installed on the top of the energy storage device and causing the overall energy storage device
  • the height increases more, which reduces the increase of the air conditioning system in the height direction of the energy storage device, avoids a substantial increase in transportation costs, and improves the space utilization in the height direction of the energy storage device.
  • the inner circulation module 2 is placed on one side inside the energy storage device, and the inner circulation module 2 and the outer circulation module 1 are placed in an L shape; the inner circulation module 2 is prevented from interfering with the internal structure of the energy storage device, and the volume of the energy storage device is increased. utilization.
  • the inner circulation module 2 and the outer circulation module 1 are detachably connected; it is easy to install and remove.
  • the inner circulation module 2 and the outer circulation module 1 are not detachably connected; the whole air conditioning system is installed with the energy storage equipment, which reduces the assembly steps between the inner circulation module 2 and the outer circulation module 1, and improves the installation efficiency.
  • the external circulation module 1 includes a plurality of condensation units 11, and the plurality of condensation units 11 are arranged side by side; Quantity is used to control the cooling capacity of the air-conditioning system, avoiding the need to redesign a new air-conditioning system when the cooling demand of the integrated air-conditioning system is changed, and increasing the flexibility of the cooling capacity of the air-conditioning system.
  • the condensing unit 11 includes a casing 111 , a condenser 112 and a condensing fan 113 , the condenser 112 and the condensing fan 113 are arranged in the casing 111 , and the casing 111 is provided with There are an air inlet 114 and an air outlet 115.
  • the condenser 112 and the condensing fan 113 are located on the channel between the air inlet 114 and the air outlet 115; Installation and removal of module 1 and energy storage equipment.
  • the condenser 112 condenses the refrigerant, a large amount of heat is released, so that the temperature of the air in the casing 111 rises to form hot air, and the condensing fan 113 blows the hot air out of the casing 111 from the air outlet 115, and the cold air outside the casing 111 is blown out.
  • the number of condensing fans 113 is set to 8-16.
  • the casing 111 is a bottomless casing, which makes the external circulation module 1 lighter and reduces the weight of the air conditioning system.
  • the air outlet 115 is located on the side of the casing 111 away from the energy storage device, and the hot air inside the casing 111 is blown out from the top of the casing 111 to prevent the hot air from blowing to the user or the user.
  • the side-by-side arrangement of multiple energy storage devices can be realized, and noise can also be reduced.
  • the air inlet 114 is located on one side of the casing 111 ; and the side of the casing 111 with the air inlet 114 is opposite to the side of the casing 111 with the air outlet 115 . Adjacent; increase the distance between the air inlet 114 and the air outlet 115 to make the air circulation inside and outside the housing 111 smoother.
  • the side of the housing 111 with the air inlet 114 is adjacent to the side of the housing 111 facing the adjacent condensing unit 11; to avoid the air inlet 114 of the condensing unit 11 being blocked by the adjacent condensing unit 11, Ensure that the air circulation inside and outside the casing 111 operates normally.
  • the outer circulation module 1 is flat; the height of the outer circulation module 1 is reduced, the increase in the height direction of the energy storage device is reduced, and the height direction of the energy storage device is increased. space utilization.
  • the outer circulation module 1 is a flat cuboid, and the height of the outer circulation module 1 is smaller than its width and length, which is convenient for processing and installation.
  • the inner circulation module 2 includes an outer frame 21 and an electronic control unit 22 , a compressor 23 , a liquid storage tank 24 , a heat exchanger 25 , an expansion unit 22 , a compressor 23 , a liquid storage tank 24 , a The valve 26 and the water pump 27, the compressor 23 and the water pump 27 are respectively electrically connected to the electronic control unit 22;
  • the compressor 23, the condenser 112, the expansion valve 26, the heat exchanger 25 and the liquid storage tank 24 are connected in sequence to form a refrigerant circulation system;
  • the water pump 27, the heat exchanger 25 and the liquid cooling device arranged in the battery of the energy storage device 4 are connected in sequence to form an antifreeze circulation system;
  • the inner circulation module 2 is designed as a frame as a whole, and the inner circulation module 2 can be taken out for maintenance as a whole, which reduces maintenance time and maintenance difficulty and facilitates maintenance; it can also reduce the overall size of the inner circulation module 2. weight.
  • This application uses a combination of a refrigerant circulation system and an antifreeze liquid circulation system to liquid-cool the battery module, the refrigerant circulation system is used to generate cooling capacity, and the heat exchanger 25 is used to realize the connection between the refrigerant circulation system and the antifreeze liquid circulation system.
  • the antifreeze circulation system is used to transfer the cold energy to each battery module for direct heat exchange; it can ensure the cooling of each battery module, improve the accuracy of temperature control of each battery module, and improve the air conditioning. The utilization efficiency of system cooling capacity.
  • the refrigerant circulation system is used to generate cooling capacity, and its working process is roughly as follows: the compressor 23 inhales the gaseous refrigerant, compresses it into high-temperature and high-pressure gas and sends it to the condenser 112; the condenser 112 condenses the high-temperature and high-pressure gas into a low temperature High-pressure gas; low-temperature and high-pressure gas is throttled and depressurized into low-temperature and low-pressure liquid through expansion valve 26; Then the low-temperature and medium-pressure gas-liquid two-phase body is separated through the liquid storage tank 24, the liquid refrigerant remains in the liquid storage tank 24, and the gaseous refrigerant enters the compressor 23 and is compressed into a high-temperature and high-pressure gas, and repeats the above cycle ( Circulation path shown by the hollow arrow in Fig. 5).
  • the antifreeze circulation system is used to deliver cold energy to the battery module, and its working process is roughly as follows: the water pump 27 drives the antifreeze to flow into the heat exchanger 25 and exchanges heat with the refrigerant to become antifreeze that carries cold energy; The cold antifreeze flows into the liquid cooling device 4 of the battery module and exchanges heat with the battery module to become antifreeze that carries heat. The antifreeze transfers the cold energy to the battery module, and the temperature of the battery module decreases; The hot antifreeze flows into the water pump 27, and the above cycle is repeated (the circulation path shown by the solid arrow in FIG. 5).
  • the liquid cooling device 4 is provided as a liquid cooling plate.
  • the internal circulation module 2 further includes a filter device 210, the water pump 27, the heat exchanger 25, the liquid cooling device 4 and the filter device 210 are connected in sequence to form an antifreeze liquid circulation system; After the circulation, impurities may be carried and the water pump 27 may be damaged, thereby improving the operation safety of the water pump 27 .
  • the inner circulation module 2 further includes an expansion tank 28 and a heating water tank 29 .
  • the water pump 27 , the heat exchanger 25 , the liquid cooling device 4 , the filtering device 210 and the heating water tank 29 are connected in sequence to form
  • the opening of the expansion tank 28 is connected to the pipeline between the heating water tank 29 and the water pump 27; the temperature of the antifreeze liquid increases after passing through the liquid cooling device 4, and a part of the antifreeze liquid may be vaporized to cause expansion, and the heating water tank 29 and
  • the expansion tank 28 can buffer expansion; the heating water tank 29 can also store antifreeze to prevent the water pump 27 from idling and ensure the safe operation of the water pump 27; at the same time, when the temperature of the battery module is lower than the optimal working temperature, the heating water tank 29 can The antifreeze is heated, thereby raising the temperature of the battery module to reach the optimum operating temperature.
  • the water pump is a double-connected water pump; two water pumps 27 are connected in parallel on the pipeline of the antifreeze liquid circulation system to form a double-connected water pump; the service life of the water pump 27 can be extended, and it can also play a backup role. , when one of the water pumps 27 fails, the other water pump 27 can be activated to avoid affecting the normal operation of the antifreeze circulation system.
  • the two refrigerant circulation systems share the heat exchanger 25; it can play a backup role, and avoid the failure of a single refrigeration circulation system to cause the battery to fail to be lowered.
  • the temperature of the module thus affects the use efficiency of the energy storage device and ensures the cooling effect of the battery module.
  • the heat exchanger 25 is set as a plate heat exchanger 25; the plate heat exchanger 25 is provided with two sets of mutually isolated cold fluid passages, and the two refrigerant circulation systems correspond to the two sets of cold fluid passages one-to-one respectively, so as to The refrigerant of a refrigerant circulation system is made to flow into a group of cold fluid passages to exchange heat with the antifreeze liquid in the hot fluid passages of the plate heat exchanger 25 .
  • the present application also provides an energy storage system, including an energy storage device and the air conditioning system described in any of the foregoing embodiments; the external circulation module 1 of the air conditioning system is installed on the energy storage device, There is no need to occupy additional space for placement, reducing the total area of the air conditioning system; and the air conditioning system is divided into an inner circulation module 2 placed inside the energy storage device and an outer circulation module 1 placed on the top of the energy storage device, avoiding the installation of an integrated air conditioning system At the top of the energy storage device, the height of the energy storage system increases a lot, reducing the increase of the air conditioning system in the height direction of the energy storage device, avoiding a substantial increase in transportation costs, and improving the space utilization of the energy storage system in the height direction. .

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Abstract

本申请涉及一种用于储能设备的空调系统和储能系统，包括内循环模块和外循环模块，内循环模块及外循环模块通过冷媒管连接，内循环模块置于储能设备内部，外循环模块置于储能设备顶部。与现有技术相比，本申请空调系统的外循环模块安装在储能设备上，无需另外占地摆放，减少空调系统总占地面积；且空调系统分为放置在储能设备内部的内循环模块和放置在储能设备顶部的外循环模块，避免一体式空调系统安装在储能设备的顶部导致储能设备的整体高度增加较多，减少空调系统在储能设备的高度方向上的增加量，避免大幅度增加运输成本，提高在储能设备的高度方向上的空间利用率。

Description

一种用于储能设备的空调系统及储能系统
相关申请的交叉引用
本申请基于申请号为202021693648.9(申请日为2020-08-13)的中国专利申请提出，并要求上述中国专利申请的优先权，上述中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请属于储能设备技术领域，特别是涉及一种用于储能设备的空调系统及储能系统。
背景技术
储能设备在充放电过程中，有大量的热量产生，导致储能设备内部温度升高，从而影响储能设备内电池模组的充放电效率。
现有的储能设备是在其顶部安装一种顶置空调系统以对电池模组进行降温。顶置空调系统为一体式风冷空调系统，从储能设备的箱体的顶部对箱体内的空气实现上送上回的空气内循环，使顶置空调系统工作过程产生的冷气在箱体内循环流动，以使箱体内的温度更加均匀，提高降温效果。
但该顶置空调系统存在以下缺点：
1、一体式空调系统的制冷能力难以调节、灵活性差，当冷量需求变化时，需要对顶置空调系统整体进行重新设计更换，耗时长，成本高。
2、由于一体式空调系统将所有结构均设置在储能设备的顶部，导致储能设备整体高度增加较多，增加运输费用，高度方向上空间利用率低。
申请内容
本申请所要解决的技术问题是：针对现有的储能设备的空调系统整体设置在储能设备的顶部，导致在储能设备的高度方向上的空间利用率低的问题，提供一种用于储能设备的空调系统和储能系统。
为解决上述技术问题，本申请实施例提供一种用于储能设备的空调系统，包括内循环模块和外循环模块，所述内循环模块及所述外循环模块通过冷媒管连接，所述内循环 模块置于储能设备内部，所述外循环模块置于所述储能设备顶部。
可选地，所述外循环模块包括多个冷凝单元，多个所述冷凝单元并排设置。
可选地，所述冷凝单元包括壳体、冷凝器和冷凝风机，所述冷凝器和所述冷凝风机设置在所述壳体内，所述壳体上设有进风口和出风口，所述冷凝器和冷凝风机位于所述进风口与所述出风口之间的通道上。
可选地，所述出风口位于所述壳体的远离所述储能设备的一侧。
可选地，所述内循环模块包括外框架及设置在所述外框架内的电控单元、压缩机、储液罐、换热器、膨胀阀及水泵，所述压缩机及所述水泵分别与所述电控单元电连接；
所述压缩机、所述冷凝器、所述膨胀阀、所述换热器及所述储液罐顺次连接形成制冷剂循环系统；所述水泵、所述换热器及设置在所述储能设备的电池模组的液冷装置顺次连接形成防冻液循环系统。
可选地，所述制冷剂循环系统设置有两个，两个所述制冷剂循环系统共用所述换热器。
可选地，所述内循环模块还包括过滤装置，所述水泵、所述换热器、所述液冷装置及所述过滤装置顺次连接形成所述防冻液循环系统。
可选地，所述内循环模块还包括膨胀罐和加热水箱，所述水泵、所述换热器、所述液冷装置、所述过滤装置及所述加热水箱顺次连接形成所述防冻液循环系统，所述膨胀罐的开口连接在所述加热水箱与水泵之间的管路上。
另一方面，本申请还提供了一种储能系统，包括储能设备及前述任一技术方案所述的空调系统。
本申请实施例提供的用于储能设备的空调系统和储能系统，与现有技术相比，本申请空调系统的外循环模块安装在储能设备上，无需另外占地摆放，减少空调系统总占地面积；且空调系统分为放置在储能设备内部的内循环模块和放置在储能设备顶部的外循环模块，避免一体式空调系统安装在储能设备的顶部导致储能设备的整体高度增加较多，减少空调系统在储能设备的高度方向上的增加量，避免大幅度增加运输成本，提高在储能设备的高度方向上的空间利用率。
附图说明
图1是本申请一实施例提供的用于储能设备的空调系统的结构示意图；
图2是图1中冷凝单元的结构示意图；
图3是图2的A-A剖视图；
图4为图1中内循环模块的结构示意图；
图5为本申请一实施例提供的用于储能设备的空调系统的原理图；
图6为本申请另一实施例提供的用于储能设备的空调系统的原理图。
说明书中的附图标记如下：
1、外循环模块；11、冷凝单元；111、壳体；112、冷凝器；113、冷凝风机；
114、进风口；115、出风口；
2、内循环模块；21、外框架；22、电控单元；23、压缩机；24、储液罐；
25、换热器；26、膨胀阀；27、水泵；28、膨胀罐；29、加热水箱；
210、过滤装置；
3、冷媒管；4、液冷装置。
具体实施方式
为了使本申请所解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本申请进行进一步的详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
如图1所示，本申请实施例提供的用于储能设备的空调系统，包括内循环模块2和外循环模块1，内循环模块2及外循环模块1通过冷媒管3连接，内循环模块2置于储能设备内部，外循环模块1置于储能设备顶部。
本申请实施例提供的用于储能设备的空调系统，与现有技术相比，本申请空调系统的外循环模块1安装在储能设备上，无需另外占地摆放，减少空调系统总占地面积；且空调系统分为放置在储能设备内部的内循环模块2和放置在储能设备顶部的外循环模块1，避免一体式空调系统安装在储能设备的顶部导致储能设备的整体高度增加较多，减少空调系统在储能设备的高度方向上的增加量，避免大幅度增加运输成本，提高在储能设备的高度方向上的空间利用率。
具体地，内循环模块2置于储能设备内部的一侧，内循环模块2与外循环模块1呈L形放置；避免内循环模块2干涉储能设备的内部结构，提高储能设备的体积利用率。
在一实施例中，内循环模块2与外循环模块1可拆连接；便于安装与拆卸。
在另一实施例中，内循环模块2与外循环模块1不可拆连接；空调系统整体与储能 设备安装，减少了内循环模块2与外循环模块1之间的组装步骤，提高安装效率。
在一实施例中，如图1所示，外循环模块1包括多个冷凝单元11，多个冷凝单元11并排设置；对于不同冷量需求的储能设备，可以通过增加或减少冷凝单元11的数量来控制空调系统的制冷能力，避免采用一体式空调系统时冷量需求改变后导致需要重新设计新的空调系统，增大了空调系统冷量变更的灵活性。
在一实施例中，如图2和图3所示，冷凝单元11包括壳体111、冷凝器112和冷凝风机113，冷凝器112和冷凝风机113设置在壳体111内，壳体111上设有进风口114和出风口115，冷凝器112和冷凝风机113位于进风口114与出风口115之间的通道上；冷凝器112和冷凝风机113固定在壳体111内形成一个整体，便于外循环模块1与储能设备的安装与拆卸。
冷凝器112对制冷剂进行冷凝时，释放出大量的热量使得壳体111内的空气温度上升形成热空气，冷凝风机113将热空气从出风口115吹出壳体111外，壳体111外的冷空气从进风口114流入壳体111内，接着冷空气吸收冷凝器112释放的热量变成热空气，热空气被冷凝风机113从出风口115吹出壳体111外，进而形成壳体111内外的空气循环(如图3中箭头所示的路径)以带走将冷凝器112工作时释放的热量。
具体地，冷凝风机113的数量设为8-16个。
在一实施例中，壳体111为无底壳体；使外循环模块1更加轻便，减轻空调系统的重量。
在一实施例中，如图2所示，出风口115位于壳体111的远离储能设备的一侧，壳体111内部的热空气从壳体111顶部吹出，避免热空气吹到使用者或其他设备上，能够实现多个储能设备的并排设置，也能降低噪声。
在一实施例中，如图2所示，进风口114位于壳体111的一侧；且壳体111的设有进风口114的一侧与壳体111的设有出风口115的一侧相邻；增大进风口114与出风口115之间的距离，使壳体111内外的空气循环更加顺畅。
优选地，壳体111的设有进风口114的一侧与壳体111的正对于相邻冷凝单元11的一侧相邻；避免冷凝单元11的进风口114被相邻的冷凝单元11遮挡，保证壳体111内外的空气循环正常运行。
在一实施例中，如图2所示，外循环模块1呈扁平状；降低外循环模块1的高度，减少在储能设备的高度方向上的增加量，提高在储能设备的高度方向上的空间利用率。
优选地，外循环模块1呈扁平的长方体，外循环模块1的高度小于其宽度和长度； 便于加工与安装。
在一实施例中，如图4和图5所示，内循环模块2包括外框架21及设置在外框架21内的电控单元22、压缩机23、储液罐24、换热器25、膨胀阀26及水泵27，压缩机23及水泵27分别与电控单元22电连接；
压缩机23、冷凝器112、膨胀阀26、换热器25及储液罐24顺次连接形成制冷剂循环系统；水泵27、换热器25及设置在储能设备的电池内的液冷装置4顺次连接形成防冻液循环系统；内循环模块2整体呈框架式设计，能够将内循环模块2整体取出进行检修，减少维护时间和维护难度，便于维护；也能减轻内循环模块2的整体重量。
本申请采用制冷剂循环系统和防冻液循环系统相结合对电池模组进行液冷，制冷剂循环系统用于产生冷量，换热器25用于实现制冷剂循环系统和防冻液循环系统之间的热交换，防冻液循环系统用于将冷量传送至各个电池模组上直接进行热交换；能够确保对各个电池模组进行降温，提高对各个电池模组温度控制的精确性，也提高空调系统冷量的利用效率。
制冷剂循环系统用于产生冷量，其工作过程大致如下：压缩机23吸入气态制冷剂，将其压缩成高温高压的气体并输送至冷凝器112；冷凝器112将高温高压的气体冷凝成低温高压的气体；低温高压的气体经过膨胀阀26节流降压成低温低压的液体；低温低压的液体经过换热器25与防冻液进行热交换后变为低温中压的气液两相体；接着低温中压的气液两相体经过储液罐24进行分离，液态制冷剂留在储液罐24中，气态制冷剂进入压缩机23内被压缩成高温高压的气体，再重复上述循环(如图5中空心箭头所示的循环路径)。
防冻液循环系统用于将冷量输送到电池模组上，其工作过程大致如下：水泵27驱动防冻液流入换热器25中与制冷剂进行热交换变为携带冷量的防冻液；接着携带冷量的防冻液流入电池模组的液冷装置4中与电池模组进行热交换变为携带热量的防冻液，防冻液将冷量传送到电池模组上，电池模组的温度降低；携带热量的防冻液流入水泵27中，再重复上述循环(如图5中实心箭头所示的循环路径)。
具体地，液冷装置4设置为液冷板。
在一实施例中，如图5所示，内循环模块2还包括过滤装置210，水泵27、换热器25、液冷装置4及过滤装置210顺次连接形成防冻液循环系统；避免防冻液经过循环后可能携带杂质从而损坏水泵27，提高水泵27运行的安全性。
在一实施例中，如图5所示，内循环模块2还包括膨胀罐28及加热水箱29，水泵 27、换热器25、液冷装置4、过滤装置210及加热水箱29顺次连接形成防冻液循环系统，膨胀罐28的开口连接在加热水箱29与水泵27之间的管路上；防冻液经过液冷装置4后温度升高，一部分防冻液可能气化从而导致膨胀，加热水箱29和膨胀罐28能够起到缓冲膨胀；加热水箱29也能储存防冻液，避免水泵27空转，保证水泵27的安全运行；同时当电池模组的温度低于最佳工作温度时，加热水箱29能够对防冻液进行加热，从而提高电池模组的温度已达到最佳工作温度。
在另一实施例中，如图6所示，水泵为双联水泵；两个水泵27并联在防冻液循环系统的管路上构成双联水泵；延长水泵27的使用寿命，也能起到备用作用，其中一个水泵27故障时能够启用另一个水泵27，避免影响防冻液循环系统的正常运行。
在一实施例中，如图5所示，制冷剂循环系统设置有两个，两个制冷剂循环系统共用换热器25；能起到备用作用，避免单一制冷循环系统故障时导致无法降低电池模组的温度从而影响储能设备的使用效率，保证对电池模组的制冷效果。
具体地，换热器25设置为板式换热器25；板式换热器25内设有两组相互隔离的冷流体通道，两个制冷剂循环系统分别与两组冷流体通道一一对应，以使一个制冷剂循环系统的制冷剂流入一组冷流体通道内，从而与板式换热器25的热流体通道内的防冻液进行热量交换。
另一方面，未图示地，本申请还提供了一种储能系统，包括储能设备及前述任一实施例述及的空调系统；空调系统的外循环模块1安装在储能设备上，无需另外占地摆放，减少空调系统总占地面积；且空调系统分为放置在储能设备内部的内循环模块2和放置在储能设备顶部的外循环模块1，避免一体式空调系统安装在储能设备的顶部导致储能系统的高度增加较多，减少空调系统在储能设备的高度方向上的增加量，避免大幅度增加运输成本，提高储能系统的高度方向上的空间利用率。
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本申请的保护范围之内。

Claims (9)

  1. 一种用于储能设备的空调系统，其特征在于，包括内循环模块和外循环模块，所述内循环模块及所述外循环模块通过冷媒管连接，所述内循环模块置于储能设备内部，所述外循环模块置于所述储能设备顶部。
  2. 根据权利要求1所述的空调系统，其特征在于，所述外循环模块包括多个冷凝单元，多个所述冷凝单元并排设置。
  3. 根据权利要求2所述的空调系统，其特征在于，所述冷凝单元包括壳体、冷凝器和冷凝风机，所述冷凝器和所述冷凝风机设置在所述壳体内，所述壳体上设有进风口和出风口，所述冷凝器和冷凝风机位于所述进风口与所述出风口之间的通道上。
  4. 根据权利要求3所述的空调系统，其特征在于，所述出风口位于所述壳体的远离所述储能设备的一侧。
  5. 根据权利要求3所述的空调系统，其特征在于，所述内循环模块包括外框架及设置在所述外框架内的电控单元、压缩机、储液罐、换热器、膨胀阀及水泵，所述压缩机及所述水泵分别与所述电控单元电连接；
    所述压缩机、所述冷凝器、所述膨胀阀、所述换热器及所述储液罐顺次连接形成制冷剂循环系统；所述水泵、所述换热器及设置在所述储能设备的电池模组的液冷装置顺次连接形成防冻液循环系统。
  6. 根据权利要求5所述的空调系统，其特征在于，所述制冷剂循环系统设置有两个，两个所述制冷剂循环系统共用所述换热器。
  7. 根据权利要求5所述的空调系统，其特征在于，所述内循环模块还包括过滤装置，所述水泵、所述换热器、所述液冷装置及所述过滤装置顺次连接形成所述防冻液循环系统。
  8. 根据权利要求7所述的空调系统，其特征在于，所述内循环模块还包括膨胀罐和加热水箱，所述水泵、所述换热器、所述液冷装置、所述过滤装置及所述加热水箱顺次连接形成所述防冻液循环系统，所述膨胀罐的开口连接在所述加热水箱与水泵之间的管路上。
  9. 一种储能系统，其特征在于，包括储能设备及权利要求1-8任意一项所述的空调系统。
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