CN216213679U - Liquid cooling energy storage system - Google Patents
Liquid cooling energy storage system Download PDFInfo
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- CN216213679U CN216213679U CN202122241555.3U CN202122241555U CN216213679U CN 216213679 U CN216213679 U CN 216213679U CN 202122241555 U CN202122241555 U CN 202122241555U CN 216213679 U CN216213679 U CN 216213679U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model discloses a liquid cooling energy storage system, which comprises an energy storage unit and a liquid cooling device, wherein the liquid cooling device comprises: a liquid cooling unit with a liquid return port and a liquid outlet; the equipment cabinet and set up in the inside first fan coil of equipment cabinet, first fan coil include first casing and be located the first coolant liquid passageway of first casing, follow the coolant liquid that the liquid cooling unit flows can flow to in the first coolant liquid passageway. The cooling liquid that flows from the liquid cooling unit can flow to first coolant liquid passageway in, to the air cooling in the first casing, and then first fan coil absorbs the interior heat of rack, simple structure, and the cost is lower, and only one set of cooling system, and system operational reliability is high. In addition, because the first fan coil is used for radiating the inside of the cabinet, only the cooling liquid pipeline penetrates through the wall of the cabinet, the cabinet is not required to be provided with air holes, the sealing performance of the cabinet is improved, the air in the cabinet is free of external environment and heat exchange, and the protection grade of the liquid cooling energy storage system is improved.
Description
Technical Field
The utility model relates to the technical field of energy storage equipment, in particular to a liquid cooling energy storage system.
Background
Objects to be cooled in the energy storage battery system include components such as a battery cell, a switch box, and a power distribution device. Among the prior art, some adopt the forced air cooling mode, switch box is independently installed to every mounting bracket, and the heat of switch box is taken away in the cooling electric core to cold wind, and the forced air cooling mode radiating efficiency is low, leads to the radiating effect unsatisfactory.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a liquid-cooled energy storage system, which has a simple structure, a low cost, a high reliability of system operation, and a high protection level.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a liquid cooling energy storage system, includes energy storage unit and liquid cooling device, the liquid cooling device includes:
a liquid cooling unit with a liquid return port and a liquid outlet;
the liquid cooling unit comprises a cabinet and a first fan coil arranged inside the cabinet, wherein the first fan coil comprises a first shell and a first cooling liquid channel positioned in the first shell, and cooling liquid flowing out of the liquid cooling unit can flow into the first cooling liquid channel.
Preferably, in the liquid-cooled energy storage system, the first fan coil is located at the top inside the cabinet, and the first shell is provided with an air outlet and an air return inlet;
and the air outlet and the air return inlet of the first shell are both arranged downwards.
Preferably, in the above liquid-cooled energy storage system, the energy storage unit includes a power distribution device and a switch box, and the power distribution device and the switch box are disposed in the cabinet.
Preferably, in the above liquid-cooled energy storage system, the power distribution device is opposite to the air return opening of the first housing;
the air outlet of the power distribution device is positioned at the top.
Preferably, in the above liquid-cooled energy storage system, the liquid-cooled device further includes a heat exchange system, the heat exchange system can exchange heat with the electric core of the energy storage unit, the heat exchange system has a second cooling liquid channel inside, and the cooling liquid flowing out of the liquid-cooled unit can flow into the second cooling liquid channel;
the second cooling liquid channel and the first cooling liquid channel are arranged in parallel.
Preferably, in the liquid-cooled energy storage system, the plurality of second cooling liquid channels of the heat exchange system are connected in parallel, the liquid-cooled energy storage system further includes a liquid supply main pipe connected to the liquid outlet of the liquid-cooled unit and a plurality of liquid supply branch pipes connected to the liquid supply main pipe, liquid inlet ends of the plurality of liquid supply branch pipes are all communicated with the liquid outlet end of the liquid supply main pipe, and liquid outlet ends of the plurality of liquid supply branch pipes are respectively communicated with liquid inlets of the second cooling liquid channels and liquid inlets of the first cooling liquid channels of the plurality of heat exchange systems;
still include with the liquid return house steward that the liquid return mouth of liquid cooling unit is connected and with a plurality of liquid return branch pipes that the liquid return house steward is connected, it is a plurality of the liquid outlet end of liquid return branch pipe all with the feed liquor end intercommunication of liquid return house steward, it is a plurality of the feed liquor end of liquid return branch pipe respectively with the liquid outlet of a plurality of second coolant liquid passageways and the liquid outlet intercommunication of first coolant liquid passageway.
Preferably, in the liquid-cooled energy storage system, the plurality of second cooling liquid channels of the heat exchange system are sequentially connected in series, and the plurality of second cooling liquid channels are connected in parallel with the first cooling liquid channel after being connected in series;
the liquid cooling energy storage system also comprises a liquid supply main pipe connected with a liquid outlet of the liquid cooling unit and two liquid supply branch pipes connected with the liquid supply main pipe, wherein liquid inlet ends of the two liquid supply branch pipes are communicated with a liquid outlet end of the liquid supply main pipe, and liquid outlet ends of the two liquid supply branch pipes are respectively communicated with a liquid inlet of a second cooling liquid channel at the foremost side in the flow direction and a liquid inlet of a first cooling liquid channel;
still include with the liquid return house steward that the liquid return mouth of liquid cooling unit is connected and with a plurality of liquid return branch pipes that the liquid return house steward is connected, two the play liquid end of liquid return branch pipe all with the feed liquor end intercommunication of liquid return house steward, two the feed liquor end of liquid return branch pipe communicates with the liquid outlet of the second coolant liquid passageway of flow direction rear side and the liquid outlet of first coolant liquid passageway respectively.
Preferably, in the above liquid-cooled energy storage system, the liquid supply branch pipe and the liquid return branch pipe are in threaded connection with the end of the first cooling liquid channel.
Preferably, in the above liquid-cooled energy storage system, a flow control valve is disposed on a connection pipeline of the liquid inlet of the first cooling liquid channel.
Preferably, in the above liquid-cooling energy storage system, the heat exchange system includes a plurality of plate-shaped heat exchangers, and the plate-shaped heat exchangers are disposed at the bottom of the battery cell.
Preferably, the liquid-cooled energy storage system further includes a second fan coil for dehumidification, the second fan coil includes a second housing and a third cooling liquid channel located in the second housing, and the cooling liquid flowing out of the liquid-cooled unit can flow into the third cooling liquid channel;
and a bypass valve is connected in series with a connecting pipeline of the liquid inlet of the third cooling liquid channel, and/or a bypass valve is connected in series with a connecting pipeline of the liquid outlet of the third cooling liquid channel.
Preferably, in the above liquid-cooled energy storage system, a flow guide member is disposed at the bottom of the second housing.
The utility model provides a liquid cooling energy storage system which comprises an energy storage unit and a liquid cooling device. The energy storage unit may include components such as a battery cell, a power distribution device, and a switch box. The structures of the battery core, the power distribution device and the switch box may be the same as those of the battery core, the power distribution device and the switch box of the energy storage battery system in the prior art, and are not described herein again.
The liquid cooling device comprises a liquid cooling unit, a cabinet and a first fan coil. Wherein, liquid cooling unit has liquid return mouth and liquid outlet, and the coolant liquid can flow out liquid cooling unit through the liquid outlet, and the coolant liquid can also flow back to liquid cooling unit through liquid return mouth.
First fan coil sets up in the rack, and first fan coil includes first casing and is located the first coolant liquid passageway in the first casing. The cooling liquid flowing out of the liquid cooling unit can flow into the first cooling liquid channel. So air in the first casing can with the coolant heat transfer in the first coolant passageway to make first fan coil absorb the interior heat of rack.
When using above-mentioned liquid cooling energy storage system, the coolant liquid that flows from the liquid cooling unit can flow to first coolant liquid passageway in, to the air cooling in the first casing, and then first fan coil absorbs the interior heat of rack, adopts air conditioner forced air cooling to compare before, simple structure, and the cost is lower, and only one set of cooling system, and system operational reliability is high. In addition, because the first fan coil is used for radiating the inside of the cabinet, only the cooling liquid pipeline penetrates through the wall of the cabinet, the cabinet is not required to be provided with air holes, the sealing performance of the cabinet is improved, the air in the cabinet is free of external environment and heat exchange, and the protection grade of the liquid cooling energy storage system is improved.
It should be noted that the inside of the cabinet may be a closed space, that is, the cabinet is a sealed cabinet. The cooling liquid pipeline and the cabinet wall are arranged in a sealing mode, and a sealing ring or a sealing foaming agent can be arranged between the cooling liquid pipeline and the cabinet wall.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a liquid-cooled energy storage system according to an embodiment of the present invention;
fig. 2 is a simplified flow diagram of a liquid-cooled energy storage system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an inside of a cabinet according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a connection of a second fan coil provided by an embodiment of the utility model.
In fig. 1-4:
the system comprises a liquid cooling unit 1, a liquid cooling unit 2, a battery core 2, a cabinet 3, a liquid supply main pipe 4, a liquid supply branch pipe 5, a liquid return branch pipe 6, a liquid return main pipe 7, a first fan coil 8, a switch box 9, a power distribution device 10, a heating element 11, a flow regulating valve 12, a second fan coil 13, a bypass valve 14, a drainage piece 15, a container 16 and an energy storage system A.
Detailed Description
Based on the prior art, the air cooling mode has poor heat dissipation effect, and the liquid cooling mode has good heat dissipation and temperature equalization effects, so the liquid cooling mode is more and more applied to the energy storage battery system. When the battery core of the energy storage battery system is cooled by liquid, the switch box, the power distribution device and other heating components are cooled by air. Specifically, the switch box 9, the power distribution device 10 and other heating components are integrated in one cabinet, and heat in the cabinet is taken away by the air conditioner in an air cooling mode. Therefore, the energy storage battery system is provided with two sets of cooling systems of air cooling and liquid cooling, the complexity of the system structure and the production and operation costs are increased, and meanwhile, compared with one set of cooling system, the two sets of cooling systems increase the failure rate of the system, so that the reliability of the system operation is reduced. In addition, the air conditioning system needs to exchange heat with the external environment, the protection level of the system is reduced due to the arrangement of the air supply surface and the air return surface of the air conditioner, and the service life and the reliability of the energy storage system are greatly reduced for application places with high corrosivity such as offshore places.
Aiming at the technical problems, the utility model provides the liquid cooling energy storage system which is simple in structure, low in cost, high in system operation reliability and high in protection grade.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left" and "right", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus are not to be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1-2, a liquid-cooled energy storage system provided by the present invention includes an energy storage unit and a liquid-cooled device. The energy storage unit may include the battery cell 2, the power distribution device 10, and the switch box 9. The structures of the battery cell 2, the power distribution device 10, and the switch box 9 may be the same as the battery cell 2, the power distribution device 10, and the switch box 9 of the energy storage battery system in the prior art, which is not described herein again.
The liquid cooling device comprises a liquid cooling unit 1, a cabinet 3 and a first fan coil 8. Wherein, liquid cooling unit 1 has liquid return mouth and liquid outlet, and the coolant liquid can flow out liquid cooling unit 1 through the liquid outlet, and the coolant liquid can also flow back to liquid cooling unit 1 through liquid return mouth.
A first fan coil 8 is disposed within the cabinet 3, the first fan coil 8 including a first housing and a first coolant channel located within the first housing. The cooling liquid flowing out of the liquid cooling unit 1 can flow into the first cooling liquid passage. So air in the first casing can with the coolant heat transfer in the first coolant passageway, and then first fan coil 8 absorbs the interior heat of rack 3.
When the liquid cooling energy storage system is applied, the cooling liquid flowing out of the liquid cooling unit 1 can flow into the first cooling liquid channel to cool the air in the first shell, and then the first fan coil 8 absorbs the heat in the cabinet 3. Compared with the prior air-conditioning air cooling, the air-conditioning air cooling system has the advantages of simple structure, lower cost, only one set of cooling system and high system operation reliability. In addition, because use first fan coil 8 to 3 inside heat dissipations of rack, only the coolant liquid pipeline pass 3 walls of rack can, rack 3 need not set up the wind hole, and the leakproofness of rack 3 improves, and the air in the rack 3 does not have external environment and does not have the heat exchange, and then makes this liquid cooling energy storage system's protection level improve.
It should be noted here that the inside of the cabinet 3 may be a closed space, that is, the cabinet 3 is a sealed cabinet 3. The cooling liquid pipeline and the wall of the machine cabinet 3 are arranged in a sealing mode, and a sealing ring or a sealing foaming agent can be arranged between the cooling liquid pipeline and the wall of the machine cabinet 3.
The cooling fluid may be water or other heat exchange medium, and is not limited herein.
As shown in fig. 3, the first fan coil 8 may be located at the top of the cabinet 3 to cool the hot air entering the first fan coil 8 inside the cabinet 3, considering that the cold air sinks and the hot air rises inside the cabinet 3. The first shell is provided with an air outlet and an air return inlet. The cooling liquid flowing out of the liquid cooling unit 1 can flow into the first cooling liquid passage. Air in so first casing can with the coolant liquid heat transfer in the first coolant liquid passageway, the air current that blows out from first casing can be to cooling down in the rack 3, absorbs in the rack 3 thermal air current can flow back to first casing through the return air inlet, has realized the circulation flow of the interior air of rack 3, so reciprocal to last 3 inside heat dissipations of rack, guaranteed energy storage battery system and operated safely high-efficiently.
And, the air outlet and the return air inlet of first casing can all set up down to the part that needs the heat dissipation is blown fast to the air current that blows off from first casing, and hot-air gets into first casing fast. Of course, the air outlet and the air return opening of the first casing may also be disposed on the side wall, and are not limited herein.
The power distribution device 10 and the switch box 9 are disposed in the cabinet 3. Other heating elements 11 in the liquid-cooled energy storage system besides the power distribution device 10, the switch box 9 and the battery cells 2 can also be arranged in the cabinet 3. Specifically, a support frame may be provided in the cabinet 3, and the power distribution device 10, the switch box 9, and the other heating elements 11 may be fixed on the support frame. The cooling liquid flowing out of the liquid cooling unit 1 can flow into the second cooling liquid channel, so that the heat exchange system can dissipate heat of the battery cell 2.
The airflow blown out of the first housing can dissipate heat from the power distribution devices 10, the switch box 9 and other heat generating elements 11 within the cabinet 3. With such an arrangement, heat dissipation from the power distribution device 10, the switch box 9 and other heating elements 11 can be achieved by using the liquid cooling unit 1 and the first fan coil 8.
The power generation amount of the power distribution device 10 is large, so that the power distribution device 10 can be made to oppose the return air opening of the first casing, specifically, the return air opening of the first casing is located above the power distribution device 10, to more quickly take away the heat of the power distribution device 10.
Further, the air outlet of the power distribution device 10 is located at the top, and thus the air outlet of the power distribution device 10 is opposite to the air return opening of the first shell, and the air return opening of the first shell is located above the air outlet of the power distribution device 10, so as to improve the heat dissipation effect of the power distribution device 10.
Of course, the air return opening of the first housing may be opposite to the switch box 9 or other heating element 11, and is not limited herein. In addition, the first fan coil 8 may be located at the bottom or the middle of the inside of the cabinet 3 according to actual conditions, and is not limited herein.
A fan may be disposed inside the first housing to accelerate air circulation.
In a specific embodiment, the liquid cooling device further includes a heat exchange system, the heat exchange system can exchange heat with the battery cell 2, and a second cooling liquid channel is arranged inside the heat exchange system. In the coolant liquid that flows out from liquid cooling unit 1 can flow to second coolant liquid passageway, electric core 2 can carry out the heat exchange with the coolant liquid in the second coolant liquid passageway to realize heat transfer system and dispel the heat to electric core 2. In consideration of the fact that the number of the battery cells 2 is large and the heat productivity of the battery cells 2 is large, the heat exchange system may have a plurality of second cooling liquid channels inside. Each second coolant channel dissipates heat from one or more of the cells 2 to improve the heat dissipation effect of the cells 2.
The second coolant passage and the first coolant passage are arranged in parallel. Therefore, the temperature of the cooling liquid entering the second cooling liquid channel and the first cooling liquid channel is lower, and the heat dissipation effect on the battery cell 2 and the power distribution device 10 and the switch box 9 in the cabinet 3 is better. Of course, the second cooling liquid channel and the first cooling liquid channel may be disposed in series, and are not limited herein.
In the above embodiment, the plurality of second cooling liquid channels of the heat exchange system may be connected in parallel, that is, the second cooling channel and the plurality of first cooling channels are all connected in parallel. The liquid-cooled energy storage system further comprises a liquid supply main pipe 4, a liquid return main pipe 7, a plurality of liquid supply branch pipes 5 and a plurality of liquid supply branch pipes 5. The liquid inlet end of the liquid supply main pipe 4 is connected with the liquid outlet of the liquid cooling unit 1, the liquid inlet ends of the liquid supply branch pipes 5 are communicated with the liquid outlet end of the liquid supply main pipe 4, and the liquid outlet ends of the liquid supply branch pipes 5 are respectively communicated with the liquid inlets of the second cooling liquid channels and the liquid inlets of the first cooling liquid channels. Thus, the cooling liquid flowing out of the liquid cooling unit 1 enters the liquid supply main pipe 4, the cooling liquid flowing out of the liquid supply main pipe 4 enters the plurality of liquid supply branch pipes 5, and finally the cooling liquid flows into the second cooling channel and the plurality of first cooling channels.
The liquid return port of the liquid cooling unit 1 is communicated with the liquid outlet end of the liquid return main pipe 7. The liquid outlet ends of the liquid return branch pipes 6 are communicated with the liquid inlet end of the liquid return header pipe 7, and the liquid inlet ends of the liquid return branch pipes 6 are respectively communicated with the liquid outlets of the second cooling liquid channels and the liquid outlets of the first cooling liquid channels. Therefore, the cooling liquid flowing out of the second cooling channel and the first cooling channels respectively flows into the liquid return branch pipes 6, the cooling liquid flowing out of the liquid return branch pipes 6 flows into the liquid return header pipe 7 uniformly, and the cooling liquid flowing out of the liquid return header pipe 7 finally flows back to the liquid cooling unit 1 for cooling again.
In the above embodiment, the liquid supply header pipe 4, the liquid return header pipe 7, the plurality of liquid supply branch pipes 5 and the plurality of liquid supply branch pipes 5 are used to realize that the second cooling channel and the plurality of first cooling channels are all connected in parallel. Of course, the supply main pipe 4 and the return main pipe 7 may not be provided, and a flow divider and a flow combiner may be used instead of the supply main pipe 4 and the return main pipe 7, which is not limited herein.
In another embodiment, the plurality of second cooling liquid channels of the heat exchange system are connected in series, and the plurality of second cooling liquid channels are connected in parallel with the first cooling liquid channel after being connected in series. Thus, the liquid-cooled energy storage system further comprises a liquid supply main pipe 4, a liquid return main pipe 7, two liquid supply branch pipes 5 and two liquid supply branch pipes 5. The liquid inlet end of the liquid supply main pipe 4 is connected with the liquid outlet of the liquid cooling unit 1, the liquid inlet ends of the two liquid supply branch pipes 5 are communicated with the liquid outlet end of the liquid supply main pipe 4, and the liquid outlet ends of the two liquid supply branch pipes 5 are respectively communicated with the liquid inlet of the second cooling liquid channel and the liquid inlet of the first cooling liquid channel which are arranged at the foremost side in the flow direction. The liquid return port of the liquid cooling unit 1 is communicated with the liquid outlet end of the liquid return main pipe 7. Liquid outlet ends of the two liquid return branch pipes 6 are communicated with a liquid inlet end of the liquid return header pipe 7, and liquid inlet ends of the two liquid return branch pipes 6 are respectively communicated with a liquid outlet of the second cooling liquid channel at the last side of the flow direction and a liquid outlet of the first cooling liquid channel. Wherein the second coolant passage along the foremost side in the flow direction means a second coolant passage through which the coolant passes first; the second coolant passage along the rearmost side in the flow direction refers to the second coolant passage through which the coolant passes last.
For ease of assembly, the liquid supply branch pipe 5 and the liquid return branch pipe 6 may be threaded onto the ends of the first coolant passages. Of course, the liquid supply branch pipe 5 and the liquid return branch pipe 6 may be in snap fit or interference fit with the end of the first cooling liquid channel, and are not limited herein.
Of course, the plurality of second cooling liquid channels and the first cooling liquid channel may be all connected in series, that is, the plurality of second cooling liquid channels of the heat exchange system may be sequentially connected in series and then connected in series with the first cooling liquid channel, which is not limited herein.
Optionally, a flow control valve 12 is disposed on a connection pipeline of the liquid inlet of the first cooling liquid channel, and the flow of the cooling liquid entering the first cooling liquid channel can be adjusted by using the flow control valve 12, so as to adjust the flow of the cooling liquid of the first cooling liquid channel in real time according to the temperature in the cabinet 3, so that the temperature of components in the cabinet 3 is kept within a reasonable range, and thus the safety and reliability of the operation of the cabinet are ensured.
In order to improve the heat dissipation effect, the heat exchange system may be a plate-shaped heat exchanger, and the plate-shaped heat exchanger is disposed at the bottom of the electric core 2. The plate-shaped heat exchanger can be directly contacted with the bottom of the battery cell 2, or heat conducting grease is arranged between the plate-shaped heat exchanger and the bottom of the battery cell 2. Of course, the heat exchange system may also be located on the top or the side of the electric core 2, and the heat exchange system may also be another type of heat exchanger, which is not limited herein.
The first cooling liquid channel may be a channel inside the heat exchange tube or the plate heat exchanger, and is not limited herein.
In the above-mentioned liquid cooling energy storage system, especially in container formula liquid cooling energy storage battery system, because the difference in temperature between air and the coolant liquid is great in ambient air or container 16, lead to coolant liquid pipeline, heat transfer system surface to have the comdenstion water, the production in a large number of comdenstion water easily causes circuit system short circuit and equipment corrosion, influences energy storage battery system's safe operation. As shown in fig. 4, in view of the above, the liquid-cooled energy storage system further comprises a second fan coil 13 for dehumidification, and the second fan coil 13 comprises a second housing and a third cooling liquid channel located in the second housing, and the cooling liquid flowing out of the liquid-cooled machine set 1 can flow into the third cooling liquid channel. So set up, the coolant liquid that gets into in the third cooling channel and the air heat exchange in the second casing to air cooling in the second casing makes moisture in the high temperature air form the comdenstion water on third casing surface, thereby has reduced the comdenstion water on coolant liquid pipeline, heat transfer system surface.
The second fan coil 13 is arranged on the outer side of the energy storage system body A, and the second fan coil 13 is arranged close to the energy storage system body A. For a container-type liquid-cooled energy storage battery system, the second fan coil 13 is disposed within the container 16. It should be noted here that if the first fan coil 8 inside the energy storage system body a is used for dehumidification, the flow of the condensed water inside the energy storage system body a may damage the wires or the electronic components.
Furthermore, a bypass valve 14 is connected in series with a connecting pipeline of the liquid inlet of the third cooling liquid channel, and/or a bypass valve 14 is connected in series with a connecting pipeline of the liquid outlet of the third cooling liquid channel. When the relative humidity of the air is high and the temperature of the cooling liquid generated by the liquid cooling unit is lower than the dew point temperature of the air, the bypass valve 14 is opened, the low-temperature cooling liquid generated by the liquid cooling unit flows through the second fan coil, and at the moment, the water vapor in the air in the environment or the air in the container is condensed into liquid water on the surface of the second shell. When the relative humidity of the air in the environment or the air in the container is reduced to a set value, the bypass valve 14 is closed, the low-temperature cooling liquid generated by the liquid cooling unit enters the energy storage system body A, at the moment, because the relative humidity of the air in the environment or the air in the container is low, no condensed water is generated on the battery cooling plate and the pipeline, and the operation safety of the battery core and other electric components is ensured.
When the temperature of the cooling liquid generated by the liquid cooling unit is higher than the dew point temperature of the air in the tank, namely the water vapor in the air is not condensed on the cold plate and the pipeline, the bypass valve 14 can be kept closed, so that the purpose of reducing energy consumption is achieved.
In order to facilitate the drainage of the condensed water, the bottom of the second housing is provided with a drain 15. For container type liquid cooled energy storage battery systems, the drain 15 may drain the condensate water to the outside of the container 16.
The second housing may also be provided with an air outlet and an air return to dissipate heat from within the container 16.
A fan may be provided inside the second housing to accelerate air circulation.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Claims (12)
1. The utility model provides a liquid cooling energy storage system, includes the energy storage unit, its characterized in that still includes the liquid cooling device, the liquid cooling device includes:
a liquid cooling unit (1) having a liquid return port and a liquid outlet;
rack (3) with set up in inside first fan coil (8) of rack (3), first fan coil (8) include first casing and are located first coolant liquid passageway in the first casing, follow the coolant liquid that liquid cooling unit (1) flow can flow to in the first coolant liquid passageway.
2. The liquid-cooled energy storage system of claim 1, wherein the first fan coil (8) is located at the top of the cabinet (3), and the first housing defines an air outlet and an air return inlet;
and the air outlet and the air return inlet of the first shell are both arranged downwards.
3. The liquid-cooled energy storage system of claim 2, wherein the energy storage unit comprises a power distribution device (10) and a switch box (9), and wherein the power distribution device (10) and the switch box (9) are disposed within the cabinet (3).
4. The liquid cooled energy storage system of claim 3, wherein said power distribution device (10) is opposite a return air inlet of said first housing;
the air outlet of the power distribution device (10) is positioned at the top.
5. The liquid-cooled energy storage system according to claim 1, wherein the liquid-cooled apparatus further comprises a heat exchange system, the heat exchange system can exchange heat with the electric core (2) of the energy storage unit, the heat exchange system has a second cooling liquid channel inside, and the cooling liquid flowing out from the liquid-cooled unit (1) can flow into the second cooling liquid channel;
the first cooling liquid channel and the second cooling liquid channel are arranged in parallel.
6. The liquid-cooled energy storage system according to claim 5, wherein the plurality of second cooling liquid channels of the heat exchange system are connected in parallel, the liquid-cooled energy storage system further comprises a liquid supply main pipe (4) connected to the liquid outlet of the liquid-cooled unit (1) and a plurality of liquid supply branch pipes (5) connected to the liquid supply main pipe (4), the liquid inlet ends of the plurality of liquid supply branch pipes (5) are all communicated with the liquid outlet end of the liquid supply main pipe (4), and the liquid outlet ends of the plurality of liquid supply branch pipes (5) are respectively communicated with the liquid inlet of the second cooling liquid channels of the plurality of heat exchange systems and the liquid inlet of the first cooling liquid channel;
still include with the liquid return house steward (7) that the liquid return mouth of liquid cooling unit (1) is connected and with a plurality of liquid return branch pipes (6) that liquid return house steward (7) are connected, it is a plurality of the play liquid end of liquid return branch pipe (6) all with the feed liquor end intercommunication of liquid return house steward (7), it is a plurality of the feed liquor end of liquid return branch pipe (6) respectively with the liquid outlet of a plurality of second coolant liquid passageways and the liquid outlet intercommunication of first coolant liquid passageway.
7. The liquid-cooled energy storage system of claim 5, wherein the plurality of second cooling fluid channels of the heat exchange system are sequentially connected in series, and are connected in parallel with the first cooling fluid channel after being connected in series;
the liquid cooling energy storage system further comprises a liquid supply main pipe (4) connected with a liquid outlet of the liquid cooling unit (1) and two liquid supply branch pipes (5) connected with the liquid supply main pipe (4), liquid inlet ends of the two liquid supply branch pipes (5) are communicated with a liquid outlet end of the liquid supply main pipe (4), and liquid outlet ends of the two liquid supply branch pipes (5) are respectively communicated with a liquid inlet of a second cooling liquid channel and a liquid inlet of a first cooling liquid channel on the foremost side in the flow direction;
still include with the liquid return house steward (7) that the liquid return mouth of liquid cooling unit (1) is connected and with a plurality of liquid return branch pipes (6) that liquid return house steward (7) are connected, two the play liquid end of liquid return branch pipe (6) all with the feed liquor end intercommunication of liquid return house steward (7), two the feed liquor end of liquid return branch pipe (6) communicates with the liquid outlet of the second coolant liquid passageway of flow direction rearmost side and the liquid outlet of first coolant liquid passageway respectively.
8. The liquid-cooled energy storage system of claim 6 or 7, wherein the branch liquid supply pipe (5) and the branch liquid return pipe (6) are in threaded connection with the end of the first coolant channel.
9. The liquid-cooled energy storage system according to claim 1, wherein a flow control valve (12) is arranged on a connection pipeline of the liquid inlet of the first cooling liquid channel.
10. The liquid-cooled energy storage system according to claim 5, wherein the heat exchange system comprises a plurality of plate-shaped heat exchangers, and the plate-shaped heat exchangers are arranged at the bottom of the battery cell (2).
11. The liquid-cooled energy storage system of claim 1, further comprising a second fan coil (13) for dehumidification, the second fan coil (13) comprising a second housing and a third coolant channel within the second housing into which coolant flowing from the liquid-cooled unit (1) can flow;
and a bypass valve (14) is connected in series with a connecting pipeline of the liquid inlet of the third cooling liquid channel, and/or a bypass valve (14) is connected in series with a connecting pipeline of the liquid outlet of the third cooling liquid channel.
12. The liquid cooled energy storage system of claim 11, wherein a drain (15) is provided at a bottom of the second housing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122241555.3U CN216213679U (en) | 2021-09-15 | 2021-09-15 | Liquid cooling energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122241555.3U CN216213679U (en) | 2021-09-15 | 2021-09-15 | Liquid cooling energy storage system |
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| CN216213679U true CN216213679U (en) | 2022-04-05 |
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| CN202122241555.3U Active CN216213679U (en) | 2021-09-15 | 2021-09-15 | Liquid cooling energy storage system |
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| CN (1) | CN216213679U (en) |
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