Large energy storage distributed liquid cooling heat management system

Abstract

The utility model discloses a large-scale energy storage distributed liquid cooling heat management system which comprises a low-temperature radiator, a cooling liquid guide pipe and a plurality of refrigerating units, and each refrigerating unit comprises a distributed heat management system and a battery cluster. According to the utility model, large-scale energy storage is adapted according to a battery cluster through modular design, and one heat management system can be adapted to large-scale energy storage of different specifications, so that large-scale production is facilitated, a refrigerating unit can be operated independently, and a plurality of refrigerating units can be operated in parallel; therefore, different numbers of distributed thermal management systems can be configured according to the specification of large energy storage and the number of battery clusters.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of thermal management system, especially, relate to a large -scale energy storage distributed liquid cooling thermal management system. BACKGROUND

[0002] Large -scale energy storage projects (such as battery energy storage system BESS) in the energy storage process will produce a large amount of heat, especially when the battery charges and discharges, if the heat can not be effectively managed, temperature is too high possibly leads to battery aging, efficiency reduction, even safety accident occurs. To ensure the safe and stable operation of energy storage system, thermal management system plays a vital role in large -scale energy storage project.

[0003] The existing large -scale energy storage thermal management liquid cooling thermal management system mostly adopts centralized thermal management system, namely a large -scale energy storage is equipped with a thermal management system, such as the centralized energy storage equipment thermal management system disclosed in China patent network with the announcement number CN212303773U. Because it is separately adapted to large -scale energy storage, when the heat generation of large -scale energy storage is different, different thermal management systems need to be configured, such as 1075kWh and 2150kWh large -scale energy storage, need to be configured 5 clusters and 10 clusters 215kWh battery pack respectively, if it is a centralized management system, then 2 types of refrigerating units are needed, this will make the product variety and production become complex. Therefore, in view of the above problems, the utility model provides a large -scale energy storage distributed liquid cooling thermal management system has important significance. UTILITY MODEL CONTENT

[0004] The utility model provides a large -scale energy storage distributed liquid cooling thermal management system, through modular design, according to battery cluster to adapt large -scale energy storage, can use a kind of thermal management system to adapt different specifications of large -scale energy storage, to facilitate scale production;Refrigerating unit can be operated alone, multiple refrigerating units can also be operated in parallel, so that different numbers of distributed thermal management systems can be configured according to the specifications of large -scale energy storage and the number of battery clusters, and the above problems in the background art are solved.

[0005] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0006] A large -scale energy storage distributed liquid cooling thermal management system of the utility model, including low temperature radiator, cooling liquid pipe and a plurality of refrigerating units;

[0007] The refrigerating unit includes distributed thermal management system and battery cluster, the main structure of the distributed thermal management system in the refrigerating unit is: thermal management unit, sensor network, control unit, energy management module, the battery cluster in the refrigerating unit is composed of multiple battery modules, and each battery cluster includes a group of battery cells.

[0008] Further, a plurality of fans are mounted on the low-temperature radiator, and the fans are linearly distributed at equal intervals.

[0009] Further, the distributed thermal management system in each refrigeration unit is connected with the cooling liquid conduit through a branch pipe.

[0010] Further, the low-temperature radiator is connected with a refrigeration device, and the generated cooling liquid is introduced into the refrigeration unit, and the cooling liquid flowing into the refrigeration unit is guided out through the cooling liquid conduit and then introduced into the low-temperature radiator.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) The large-scale energy storage distributed liquid cooling thermal management system has modular design, can be adapted to large-scale energy storage according to battery clusters, can be adapted to large-scale energy storage of different specifications by using one thermal management system, and thus facilitates scale production.

[0013] (2) The large-scale energy storage distributed liquid cooling thermal management system can independently operate the refrigeration unit or can operate multiple refrigeration units in parallel, so that different numbers of distributed thermal management systems can be configured according to the specifications of the large-scale energy storage and the number of battery clusters.

[0014] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0016] Figure 1 It is a structure principle schematic view of the large-scale energy storage distributed liquid cooling thermal management system of the utility model.

[0017] In the drawings, the component list represented by each number is as follows:

[0018] 1, low-temperature radiator; 2, cooling liquid conduit; 3, distributed thermal management system; 4, battery cluster; 5, fan. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0020] In the description of the present utility model, it should be understood that the terms "relative", "one end", "interior", "transverse", "end", "two ends", "two sides", "front", "one end surface", "another end surface" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the indicated components or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0021] Please refer to Figure 1 The utility model discloses a large energy storage distributed liquid cooling heat management system, including low temperature radiator 1, cooling liquid pipe 2 and a plurality of refrigerating units,

[0022] The refrigerating unit includes a distributed heat management system 3 and a battery cluster 4. According to the refrigeration requirement, when a single battery cluster 4 is running, the refrigerating unit can be run alone, and when multiple battery clusters 4 are running, multiple refrigerating units can be run in parallel, so that different numbers of distributed heat management systems 3 can be configured according to the specifications of the large energy storage and the number of battery clusters 4. The main structure of the distributed heat management system 3 in the refrigerating unit is: a heat management unit, a sensor network, a control unit and an energy management module. The battery cluster 4 in the refrigerating unit is composed of multiple battery modules, each battery cluster 4 contains a group of battery cells, and the battery cells are connected together in series and parallel. The battery clusters 4 have the same voltage and capacity, and they can be combined together to form a complete battery system, so as to disassemble a large system into multiple small identical parts, thereby making the production and installation modularized.

[0023] Among them, the low temperature radiator 1 is provided with a plurality of fans 5, the fans 5 are linearly distributed at equal intervals, and the whole energy storage heat management system can realize external heat exchange through the plurality of fans 5.

[0024] Among them, the distributed heat management system 3 in each refrigerating unit is connected with the cooling liquid pipe 2 through a branch pipe, and the cooling liquid flowing into each distributed heat management system 3 can be introduced into the cooling liquid pipe 2 through the branch pipe.

[0025] The low-temperature radiator 1 is connected with a refrigeration device, and the generated cooling liquid is introduced into the refrigeration unit, the cooling liquid flowing into the refrigeration unit is led out through the cooling liquid pipe 2 and is re-introduced into the low-temperature radiator 1, and the cooling liquid introduced into the refrigeration unit flows into the battery cluster 4 through the distributed thermal management system 3 and is re-introduced into the distributed thermal management system 3 by the battery cluster 4, so that the cooling liquid can be circulated to cool each refrigeration unit.

[0026] The circuit, electronic components and chip modules involved in the utility model are all prior art, and can be realized by those skilled in the art without further description, and the content protected by the utility model does not involve improvement of software and methods.

[0027] The standard parts used in the application file can be purchased from the market, all components in the application file can be ordered according to the description and drawings, and the specific connection mode of each part adopts conventional means such as bolts, rivets and welding in the prior art, and the mechanical parts and equipment adopt conventional types in the prior art.

[0028] The working principle of the utility model is:

[0029] In use, the distributed thermal management system 3 in each refrigeration unit can be operated independently or in parallel, so that different numbers of distributed thermal management systems 3 can be configured according to the specifications of large energy storage and the number of battery clusters 4, specifically, according to the refrigeration requirement, when a single battery cluster 4 is operated, the refrigeration unit can be operated independently, and when multiple battery clusters 4 are operated, multiple refrigeration units can be operated in parallel, compared with the prior art, the utility model is modularized, and is adapted to large energy storage according to the battery cluster 4, so that one thermal management system can be adapted to large energy storage of different specifications, thereby facilitating large-scale production.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that those skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A large-scale energy storage distributed liquid cooling thermal management system, characterized in that, Including low-temperature radiator, coolant pipe and several refrigeration units; The refrigeration unit includes a distributed thermal management system and a battery cluster. The main structure of the distributed thermal management system in the refrigeration unit is: a thermal management unit, a sensor network, a control unit, and an energy management module. The battery cluster in the refrigeration unit is composed of multiple battery modules, and each battery cluster contains a group of battery cells.

2. The large-scale energy storage distributed liquid cooling thermal management system according to claim 1, wherein, A plurality of fans are installed on the low-temperature radiator, and the fans are linearly distributed at equal distances.

3. The large-scale energy storage distributed liquid cooling thermal management system according to claim 1, wherein, The distributed thermal management system in each refrigeration unit is connected to the coolant conduit through a branch pipe.

4. The large-scale energy storage distributed liquid cooling thermal management system of claim 1, wherein, The low-temperature radiator is externally connected to a refrigeration device and introduces the generated coolant into the refrigeration unit. The coolant flowing into the refrigeration unit is discharged through a coolant conduit and reintroduced into the low-temperature radiator.

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