Energy storage liquid cooling system with heat recovery function

Abstract

The utility model relates to the technical field of energy storage liquid cooling systems, and discloses an energy storage liquid cooling system with a heat recovery function, which comprises an energy storage box, a liquid cooling box, a liquid outlet pipe and a liquid return pipe, the inner wall of one end of the energy storage box close to the liquid cooling box is fixedly connected with a heat recovery cover, and the liquid return pipe penetrates through the heat recovery cover. The outer wall of the end, located in the heat recovery cover, of the liquid return pipe is sleeved with and fixedly connected with a plurality of heat conduction plates, one side of the heat recovery cover is fixedly connected with a connecting cover, the other end of the connecting cover penetrates through the inner wall of the energy storage box to the outside and is connected with an air suction mechanism, and the output end of the air suction mechanism is connected with a heat recovery pipe. According to the energy storage liquid cooling system with the heat recovery function, heat carried in the liquid return pipe can be transferred into the heat recovery cover through the heat conducting plate, so that subsequent heat recovery and reutilization are facilitated; heat collected in the heat recovery cover can be conveyed into the heat recovery pipe through the air suction mechanism, so that water in the water tank can be heated, and the purpose of recycling is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage liquid cooling systems, in particular to an energy storage liquid cooling system with a heat recovery function. Background Art

[0002] Energy storage liquid cooling systems are thermal management systems used in battery energy storage devices. In large-scale energy storage applications, such as electric vehicles (EVs) and grid energy storage systems, battery packs generate significant heat, which not only affects battery performance but also shortens its service life. Therefore, effective thermal management is crucial to maintaining the battery's operating temperature within an ideal range.

[0003] The patent with the current announcement number CN221427877U discloses a liquid-cooled energy storage system. The liquid-cooled energy storage system includes: a box body, a storage chamber is provided inside the box body, and a battery cluster is placed in the storage chamber; an external device, and the external device is assembled on the outer wall of the box body. In this liquid-cooled energy storage system, by assembling the external device to the outer wall of the box body, so that the external device does not occupy the space of the storage chamber inside the box body, the space of the storage chamber can be fully utilized for reasonable arrangement, so as to achieve the purpose of increasing the number of battery clusters, thereby significantly increasing the system capacity, and the external placement of the external device is conducive to the design of the waterproof and sealing structure inside the box body, which can achieve better protection effect.

[0004] However, the above-mentioned liquid-cooled energy storage system still has the following problems in actual use:

[0005] After the battery pack in the energy storage system is cooled by liquid cooling, the heat carried in the coolant is generally cooled through equipment such as a heat exchanger or compressor to achieve subsequent cyclic cooling.

[0006] However, if the heat transferred through the heat exchanger or compressor is directly cooled, it will cause a waste of energy, which is not in line with the current principles of energy conservation, emission reduction and sustainable development. Utility Model Content

[0007] In view of the deficiencies of the prior art, the present invention provides an energy storage liquid cooling system with a heat recovery function to solve the problem that the current liquid cooling system of the energy storage box cannot recover and reuse the transferred heat.

[0008] The utility model provides the following technical solution: an energy storage liquid cooling system with a heat recovery function, comprising an energy storage box, a liquid cooling box installed on one side outside the energy storage box, a liquid outlet pipe installed at the output end of the liquid cooling box, and a liquid return pipe installed at the input end of the liquid cooling box, an inner wall of the energy storage box close to one end of the liquid cooling box is fixedly connected to a heat recovery cover, the liquid return pipe passes through the heat recovery cover, and the outer wall of the liquid return pipe at one end inside the heat recovery cover is sleeved and fixedly connected to a plurality of heat conduction plates, one side of the heat recovery cover is fixedly connected to a connecting cover, the other end of the connecting cover passes through the inner wall of the energy storage box to the outside, and is connected to an air suction mechanism, the output end of the air suction mechanism is connected to the heat recovery pipe, the outer wall of the energy storage box close to one end of the liquid cooling box is fixedly connected to a water tank, the end of the heat recovery pipe away from the air suction mechanism passes through one end of the water tank, and passes out from the other end of the water tank.

[0009] Furthermore, the air suction mechanism includes an air suction hood, an air suction motor and an impeller. One side outer wall of the air suction hood is fixedly connected to the outer side wall of the energy storage box, and the other side outer wall of the air suction hood is fixedly connected to the outer wall of the air suction motor. The output shaft of the air suction motor passes through the outer wall of the air suction hood and is fixedly connected to one end of the impeller. The impeller is located inside the air suction hood, the input end of the air suction hood is fixedly connected and communicated with the connecting hood, and the output end of the air suction hood is fixedly connected and communicated with the end of the heat recovery pipe away from the water tank.

[0010] Furthermore, an air inlet is formed through one end of the heat recovery cover away from the connection cover, and the air inlet, the heat recovery cover and the interior of the connection cover are communicated.

[0011] Furthermore, the inner wall of the heat recovery pipe passing through one end of the water tank and the inner wall of the air inlet are both fixedly connected with dustproof nets.

[0012] Furthermore, the upper part of one end of the water tank is fixedly connected to and communicated with a water supply pipe, and the lower part of the other end of the water tank is fixedly connected to and communicated with a drainage pipe.

[0013] Furthermore, a valve is provided on the drain pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This energy storage liquid cooling system with heat recovery function, by adding a heat recovery cover and several heat conduction plates, can transfer the heat carried in the return liquid pipe to the heat recovery cover through the heat conduction plates, thereby facilitating subsequent heat recovery and reuse;

[0016] 2. This energy storage liquid cooling system with heat recovery function sets an air suction mechanism outside the energy storage box, connects the input end of the air suction mechanism to the heat recovery cover, and connects the output end of the air suction mechanism to the heat recovery pipe. In this way, the heat collected inside the heat recovery cover can be transported to the heat recovery pipe through the air suction mechanism, thereby heating the water in the water tank and achieving the purpose of recycling and reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall appearance of the utility model;

[0018] Figure 2 It is a partial cross-sectional schematic diagram of the energy storage box of the utility model;

[0019] Figure 3 It is a detailed connection diagram of the suction mechanism, heat recovery cover and water tank of the utility model;

[0020] Figure 4 This is a detailed connection diagram of the suction mechanism, heat recovery pipe, water tank and other components of the utility model;

[0021] Figure 5 This is an exploded schematic diagram of the various components of the suction mechanism of the present invention.

[0022] In the figure: 1. Energy storage box; 2. Liquid cooling box; 3. Liquid outlet pipe; 4. Water tank; 5. Water supply pipe; 6. Heat recovery pipe; 7. Drain pipe; 8. Suction hood; 9. Suction motor; 10. Connecting hood; 11. Heat recovery hood; 1101. Air inlet; 12. Liquid return pipe; 13. Heat conduction plate; 14. Impeller. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] See also Figure 1-Figure 5 A heat storage liquid cooling system with heat recovery function includes an energy storage tank 1, a liquid cooling tank 2 installed on one side outside the energy storage tank 1, a liquid outlet pipe 3 installed at the output end of the liquid cooling tank 2, and a liquid return pipe 12 installed at the input end of the liquid cooling tank 2. A heat recovery cover 11 is fixedly connected to the inner wall of the energy storage tank 1 near one end of the liquid cooling tank 2. The liquid return pipe 12 passes through the heat recovery cover 11, and the outer wall of the liquid return pipe 12 at one end inside the heat recovery cover 11 is sleeved and fixedly connected with a plurality of heat conducting plates 13. A connecting cover 10 is fixedly connected to one side of the heat recovery cover 11, and the other end of the connecting cover 10 passes through the inner wall of the energy storage tank 1 to the outside and is connected to an air suction mechanism. The output end of the air suction mechanism is connected to a heat recovery pipe 6. The outer wall of the energy storage tank 1 near one end of the liquid cooling tank 2 is fixedly connected to a water tank 4. The end of the heat recovery pipe 6 away from the air suction mechanism passes through one end of the water tank 4 and exits from the other end of the water tank 4.

[0025] The energy storage liquid cooling system with heat recovery function in the present invention is similar in structure to the existing energy storage liquid cooling system, such as the liquid cooling energy storage system disclosed in patent publication number CN221427877U. Figures 1 to 5As shown, when heat is recovered from the battery pack and the like inside the energy storage box 1 through the liquid cooling box 2, the liquid outlet pipe 3 and the liquid return pipe 12, the heat in the liquid return pipe 12 can be absorbed by the plurality of heat conducting plates 13 located inside the heat recovery cover 11, and air is extracted from the inside of the heat recovery cover 11 along the connecting cover 10 through the air suction mechanism, so that the hot air on the plurality of heat conducting plates 13 can be transferred to the heat recovery pipe 6, and then discharged from the heat recovery pipe 6 through one end of the water tank 4 to the external environment. At the same time, the heat inside the heat recovery pipe 6 will exchange heat with the water inside the water tank 4, so that the water inside the water tank 4 can be heated, thereby realizing the multiple use of thermal energy. At the same time, the temperature of the air discharged from the other end of the heat recovery pipe 6 will also be relatively low, so that it will not cause much impact on the external environment.

[0026] Special mention should be made here:

[0027] 1. The energy storage tank 1 and the liquid cooling tank 2 are both very mature technologies in the existing technology, so they will not be described in detail.

[0028] 2. Currently, in general liquid cooling systems, the main components include pumps, coolant, heat exchangers, and piping systems. These systems mainly rely on pumps to drive the coolant through the battery modules and dissipate the heat through the heat exchanger. However, in some system designs, in order to further improve the cooling effect, components such as compressors and evaporators / condensers may be added to form a closed-loop refrigeration cycle similar to an air-conditioning system. In this case, the compressor compresses the refrigerant, turning it into a high-temperature and high-pressure gas, which is then dissipated through the condenser to become liquid. The pressure and temperature are then reduced through the expansion valve, and finally the heat of the battery system is absorbed in the evaporator to complete a refrigeration cycle. These are currently common technologies, so they will not be described in detail and are not specifically shown in the figure.

[0029] Please refer to Figure 5 The suction mechanism includes a suction hood 8, a suction motor 9 and an impeller 14. One side outer wall of the suction hood 8 is fixedly connected to the outer side wall of the energy storage box 1, and the other side outer wall of the suction hood 8 is fixedly connected to the outer wall of the suction motor 9. The output shaft of the suction motor 9 passes through the outer wall of the suction hood 8 and is fixedly connected to one end of the impeller 14. The impeller 14 is located inside the suction hood 8. The input end of the suction hood 8 is fixedly connected and communicated with the connecting hood 10, and the output end of the suction hood 8 is fixedly connected and communicated with the end of the heat recovery pipe 6 away from the water tank 4.

[0030] More specifically, when it is necessary to suck away the hot air on the heat conduction plate 13 inside the heat recovery hood 11, it is only necessary to turn on the suction motor 9. After the suction motor 9 is started, the output shaft drives the impeller 14 located inside the suction hood 8 to rotate. During the rotation of the impeller 14, the hot air inside the heat recovery hood 11 will be sucked into the suction hood 8 through the suction hood 8 and the connecting hood 10, and then transported from the output end of the suction hood 8 to the heat recovery pipe 6.

[0031] Please refer to Figure 3 An air inlet 1101 is formed through one end of the heat recovery cover 11 away from the connection cover 10 , and the air inlet 1101 , the heat recovery cover 11 and the interior of the connection cover 10 are communicated.

[0032] More specifically, by providing the air inlet 1101, firstly, the lack of air inside the heat recovery cover 11 after the impeller 14 rotates and generates suction can be filled; secondly, the air inlet 1101 can directly absorb hot air from the inside of the energy storage tank 1, and absorb part of the heat inside the energy storage tank 1 that is not transferred by the return liquid pipe 12 into the heat recovery cover 11.

[0033] Please refer to Figure 1-Figure 4 The heat recovery pipe 6 passes through the inner wall of one end of the water tank 4 and the inner wall of the air inlet 1101, and a dustproof net is fixedly connected.

[0034] More specifically, by providing a dustproof net, dust or other fluff inside and outside the energy storage box 1 can be prevented from entering the heat recovery cover 11 or the heat recovery pipe 6, increasing the load of various components or accelerating the speed of damage to various components.

[0035] Please refer to Figure 1-Figure 4 , the top of one end of the water tank 4 is fixedly connected and communicated with a water supply pipe 5, and the bottom of the other end of the water tank 4 is fixedly connected and communicated with a drain pipe 7. A valve is provided on the drain pipe 7.

[0036] More specifically, by providing a water supply pipe 5 and a drain pipe 7, cold water can be added to the inside of the water tank 4 or hot water in the water tank 4 can be discharged to the outside as needed. The drain pipe 7 can be opened and closed as needed by a valve.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An energy storage liquid cooling system with a heat recovery function, comprising an energy storage box (1), a liquid cooling box (2) installed on one side of the outside of the energy storage box (1), a liquid outlet pipe (3) installed at the output end of the liquid cooling box (2), and a liquid return pipe (12) installed at the input end of the liquid cooling box (2), characterized in that: The inner wall of the energy storage box (1) close to one end of the liquid cooling box (2) is fixedly connected to a heat recovery cover (11), a liquid return pipe (12) passes through the heat recovery cover (11), and the outer wall of the liquid return pipe (12) at one end inside the heat recovery cover (11) is sleeved with and fixedly connected to a plurality of heat conducting plates (13), one side of the heat recovery cover (11) is fixedly connected to a connecting cover (10), the other end of the connecting cover (10) passes through the inner wall of the energy storage box (1) to the outside and is connected to an air suction mechanism, the output end of the air suction mechanism is connected to a heat recovery pipe (6), the outer wall of the energy storage box (1) close to one end of the liquid cooling box (2) is fixedly connected to a water tank (4), the end of the heat recovery pipe (6) away from the air suction mechanism passes through one end of the water tank (4) and passes out from the other end of the water tank (4).

2. The energy storage liquid cooling system with heat recovery function according to claim 1, characterized in that: The air suction mechanism comprises an air suction hood (8), an air suction motor (9) and an impeller (14); one side outer wall of the air suction hood (8) is fixedly connected to the outer side wall of the energy storage box (1); the other side outer wall of the air suction hood (8) is fixedly connected to the outer wall of the air suction motor (9); the output shaft of the air suction motor (9) passes through the outer wall of the air suction hood (8) and is fixedly connected to one end of the impeller (14); the impeller (14) is located inside the air suction hood (8); the input end of the air suction hood (8) is fixedly connected and communicated with the connecting hood (10); and the output end of the air suction hood (8) is fixedly connected and communicated with the end of the heat recovery pipe (6) away from the water tank (4).

3. The energy storage liquid cooling system with heat recovery function according to claim 1 or 2, characterized in that: An air inlet (1101) is provided through one end of the heat recovery cover (11) away from the connection cover (10), and the air inlet (1101), the heat recovery cover (11) and the interior of the connection cover (10) are in communication.

4. The energy storage liquid cooling system with heat recovery function according to claim 3, characterized in that: The heat recovery pipe (6) passes through the inner wall of one end of the water tank (4) and the inner wall of the air inlet (1101), and both are fixedly connected with a dustproof net.

5. The energy storage liquid cooling system with heat recovery function according to claim 4, characterized in that: The upper portion of one end of the water tank (4) is fixedly connected to and communicated with a water supply pipe (5), and the lower portion of the other end of the water tank (4) is fixedly connected to and communicated with a drainage pipe (7).

6. The energy storage liquid cooling system with heat recovery function according to claim 5, characterized in that: A valve is provided on the drain pipe (7).

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