Direct cooling type industrial and commercial energy storage device

Abstract

The invention relates to the technical field of energy storage, in particular to a direct-cooling industrial and commercial energy storage device which comprises an energy storage cabinet, a battery pack, a high-pressure bin and a liquid cooler, the battery pack, the high-pressure bin and the liquid cooler are arranged in the energy storage cabinet, a plurality of mounting plates are fixedly connected to the inner side of the energy storage cabinet at equal intervals, and the battery pack is arranged on the mounting plates. An S-shaped main heat exchange pipe and an S-shaped branch heat exchange pipe are arranged on the mounting plate, a liquid inlet pipe and a liquid outlet pipe are arranged in the energy storage cabinet, the liquid inlet pipe and the liquid outlet pipe both communicate with the inlet end and the outlet end of the liquid cooler, conversion blocks are arranged on the mounting plate, and straight grooves are formed in the top ends of the conversion blocks. When the temperature of the battery pack is low, the refrigerant flowing out of the main heat exchange pipe can be automatically discharged into the branch heat exchange pipes for secondary heat exchange, the heat exchange staying time of the refrigerant under the battery pack is adjusted, heat is fully absorbed, and then the refrigerant returns to the liquid cooler, so that the temperature difference of the refrigerant in the pipeline is reduced, and the temperature uniformity of the whole system is improved.

Description

Technical Field

[0001] The present invention relates to the field of energy storage technology, and in particular to a direct-cooling industrial and commercial energy storage device. Background Art

[0002] Direct-cooling industrial and commercial energy storage devices are widely used in commercial and industrial fields. They dissipate heat through direct contact between the refrigerant and the battery cells, ensuring that the battery cells remain within a suitable operating temperature range during the charging and discharging process. However, existing direct-cooling energy storage devices have significant technical defects in long-distance transportation and large pipeline systems.

[0003] In long-distance transportation and large pipeline systems, refrigerant flow regulation is currently a common cooling control method. By adjusting the refrigerant flow, the cooling effect of the refrigerant on the battery cell can be changed. However, this flow regulation method has obvious limitations. When the flow suddenly increases, the cooling effect of the refrigerant at the front end of the pipeline may be very strong, but the cooling effect at the end of the pipeline will be significantly weakened. This is because the refrigerant absorbs a large amount of heat during the flow in the pipeline, causing its temperature to rise, thereby reducing the cooling capacity. This phenomenon makes the temperature distribution of the refrigerant in the pipeline uneven, and it is impossible to perform precise cooling according to the actual temperature requirements of the battery cell.

[0004] The application of this flow regulation method in long-distance transportation and large pipeline systems will not only lead to uneven cooling effects, but also increase the system's energy consumption and operating costs. Therefore, the development of a new cooling structure that can dynamically adjust the refrigerant residence time according to the battery core temperature is of great significance for improving the performance and reliability of direct-cooling industrial and commercial energy storage devices.

[0005] Therefore, a direct-cooling industrial and commercial energy storage device is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a direct-cooling industrial and commercial energy storage device.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: a direct-cooling industrial and commercial energy storage device, comprising an energy storage cabinet, and a battery pack, a high-pressure chamber and a liquid cooler arranged in the energy storage cabinet, wherein a plurality of mounting plates are fixedly connected at equal intervals to the inside of the energy storage cabinet, the battery pack is arranged on the mounting plate, and an S-shaped main heat exchange pipe and an S-shaped branch heat exchange pipe are respectively provided on the mounting plate, an inlet pipe and a liquid outlet pipe are provided in the energy storage cabinet, and the liquid inlet pipe and the liquid outlet pipe are both connected to the inlet and outlet ends of the liquid cooler, and a conversion block is provided on each of the mounting plates, a straight groove is provided on the top of the conversion block, a Z-shaped groove is provided on the side wall of the straight groove, and side grooves are provided on both ends of the inner side of the straight groove, the inlet end of the branch heat exchange pipe is fixedly connected to the side wall of the conversion block, and the inlet of the branch heat exchange pipe is connected through one of the side grooves, the outlet end of the main heat exchange pipe is fixedly connected to the side wall of the conversion block, and the outlet of the main heat exchange pipe is connected through the Z-shaped groove, and the conversion block is provided with an adjustment mechanism for adjusting the flow direction of the refrigerant.

[0008] In the above technical solution, further, the outer walls of the liquid inlet pipe and the liquid outlet pipe are fixedly connected with an upper pipe and a lower pipe respectively relative to the position above the mounting plate, and the conversion block is sealed with an inspection plate for sealing the straight groove, Z-shaped groove and side groove by bolts. The inlet end of the lower pipe is fixedly connected to the top of the inspection plate, and the inlet of the lower pipe is connected to the inside of the straight groove. A branch pipe is fixedly connected between the outlet of the sub-heat exchange pipe and the outer wall of the lower pipe, the outlet end of the upper pipe is fixedly connected to the inlet of the main heat exchange pipe, and an upper one-way valve is provided on the branch pipe.

[0009] In the above technical solution, further, the adjustment mechanism includes an electric telescopic cylinder, which is fixedly connected to the side wall of the conversion block, and upper plates are fixedly connected on both sides of the inner side of the straight groove relative to the Z-shaped groove. Upper circular holes are penetrated through the side walls of the upper plates, and upper rubber blocks are provided between the upper plates, and both ends of the upper rubber blocks are set to be conical. Push rods are provided on the side walls of the upper rubber blocks, and the output end of the electric telescopic cylinder passes through the inner side of the straight groove and is fixedly connected to the side wall of the push rod, and the output end of the electric telescopic cylinder is sealed and slidably connected to the conversion block.

[0010] In the above technical solution, further, a branch pipe is fixedly connected between the middle of the branch heat exchange pipe and the outer wall of the conversion block, and the branch pipe is connected with the branch heat exchange pipe and the inside of another side groove, and a lower one-way valve is provided on the branch pipe.

[0011] In the above technical solution, further, the inner side of the straight groove is fixedly connected to the position beside the side groove, and the side walls of the side plates are penetrated with lower circular holes. The inner side of the straight groove is slidably connected to the position between the side plates. Lower rubber blocks are fixedly connected on both sides of the slider, and the side away from the lower rubber block is set to a cone shape. An oblique groove is opened on the slider, and a round rod is inserted in the oblique groove. The top of the round rod is fixedly connected to a push block.

[0012] In the above technical solution, further, the side wall of the upper rubber block is fixedly connected to a cylinder, a circular plate is slidably connected inside the cylinder, the push rod is fixedly connected to the side wall of the circular plate, an upper spring is fixedly connected between the side wall of the circular plate and the side wall of the upper rubber block, and the bottom end of the outer wall of the push rod is fixedly connected to the lower plate.

[0013] In the above technical solution, further, a lower spring is fixedly connected between the inner side of the straight groove and the side wall of the push block, and one of the lower rubber blocks is sealed and inserted in the lower circular hole, and the round rod is slidably connected to the bottom end of the straight groove.

[0014] In the above technical solution, further, a pair of guide grooves are opened on the inner side of the cylinder, a pair of guide blocks are fixedly connected to the outer wall of the circular plate, and the guide blocks are slidably connected to the inner sides of the guide grooves.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention, through the arrangement of structures such as the conversion block, the main heat exchange tube and the branch heat exchange tube, can automatically discharge the refrigerant flowing out of the main heat exchange tube into the branch heat exchange tube for reheat exchange when the temperature of the battery pack is low, adjust the time the refrigerant stays under the battery pack for heat exchange, and return it to the liquid cooler after fully absorbing heat, thereby reducing the temperature difference of the refrigerant in the pipeline and improving the temperature uniformity of the entire system.

[0016] 2. The present invention can further adjust the position of the refrigerant discharged into the sub-heat exchange tube according to the temperature of the battery pack through the arrangement of structures such as the side panels, the lower rubber block and the slider, thereby adjusting the time for the refrigerant to flow under the battery pack, further meeting different temperature regulation requirements and improving the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall appearance of the energy storage device of the present invention when it is opened; Figure 2 This is a schematic diagram of the overall appearance of the liquid cooler and battery pack of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the mounting plate of the present invention from a top view; Figure 4 The appended Figure 3 A schematic diagram of the partially enlarged structure at center A; Figure 5 This is a schematic top view of the three-dimensional structure of the main heat exchange tube and the sub-heat exchange tube of the present invention; Figure 6 This is a schematic top view of the three-dimensional structure of the conversion block and the access plate separated according to the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the electric telescopic cylinder, side panels and upper panel of the present invention when viewed from above; Figure 8 This is a schematic diagram of the separated three-dimensional structure of the electric telescopic cylinder, round rod and slider of the present invention; Figure 9 It is a partially cutaway perspective structural diagram of the upper rubber block and the push rod separated from each other in the present invention.

[0018] In the figure: 1. Energy storage cabinet; 2. Battery pack; 3. High-pressure chamber; 4. Liquid cooler; 5. Mounting plate; 6. Main heat exchange tube; 7. Branch heat exchange tube; 8. Liquid inlet pipe; 9. Liquid outlet pipe; 10. Conversion block; 11. Branch pipe; 12. Inspection panel; 13. Upper pipe; 14. Lower pipe; 15. Upper one-way valve; 16. Electric telescopic cylinder; 17. Upper plate; 18. Upper rubber block; 19. Push rod; 20. Branch pipe; 21. Lower one-way valve; 22. Side plate; 23. Upper circular hole; 24. Lower circular hole; 25. Slider; 26. Lower rubber block; 27. Inclined groove; 28. Round rod; 29. ​​Push block; 30. Cylinder; 31. Round plate; 32. Upper spring; 33. Lower plate; 34. Lower spring; 35. Guide groove; 36. Guide block. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] In actual use, it is found that in long-distance transportation and large pipeline systems, refrigerant flow regulation is currently a common cooling control method. By adjusting the flow of the refrigerant, the cooling effect of the refrigerant on the battery cell can be changed. However, this flow regulation method has obvious limitations. When the flow suddenly increases, the cooling effect of the refrigerant at the front end of the pipeline may be very strong, but the cooling effect at the end of the pipeline will be significantly weakened. This is because the refrigerant absorbs a large amount of heat during the flow in the pipeline, causing its temperature to rise, thereby reducing the cooling capacity. This phenomenon makes the temperature distribution of the refrigerant in the pipeline uneven, and it is impossible to perform precise cooling according to the actual temperature requirements of the battery cell. In order to solve the above problems, the following structure is specially invented.

[0022] like Figures 1-9 A direct-cooling industrial and commercial energy storage device is shown, comprising an energy storage cabinet 1, and a battery pack 2, a high-pressure chamber 3 and a liquid cooler 4 arranged in the energy storage cabinet 1. Several mounting plates 5 are fixedly connected at equal intervals on the inside of the energy storage cabinet 1, and the battery pack 2 is arranged on the mounting plate 5. The mounting plate 5 is respectively provided with an S-shaped main heat exchange tube 6 and an S-shaped branch heat exchange tube 7. A liquid inlet pipe 8 and a liquid outlet pipe 9 are provided in the energy storage cabinet 1, and the liquid inlet pipe 8 and the liquid outlet pipe 9 are both connected to the inlet and outlet ends of the liquid cooler 4. A conversion block 10 is provided on each mounting plate 5. A straight groove is provided at the top of the conversion block 10, a Z-shaped groove is provided on the side wall of the straight groove, and side grooves are provided at both ends of the inner side of the straight groove. The inlet end of the branch heat exchange tube 7 is fixedly connected to the side wall of the conversion block 10, and the inlet of the branch heat exchange tube 7 is connected through one of the side grooves. The outlet end of the main heat exchange tube 6 is fixedly connected to the side wall of the conversion block 10, and the outlet of the main heat exchange tube 6 is connected through the Z-shaped groove. The conversion block 10 is provided with an adjustment mechanism for adjusting the flow direction of the refrigerant. The outer walls of the liquid inlet pipe 8 and the liquid outlet pipe 9 are fixedly connected with an upper pipe 13 and a lower pipe 14 respectively relative to the upper position of the mounting plate 5. The conversion block 10 is sealed with an access plate 12 for blocking the straight groove, Z-shaped groove and side groove by bolts. The inlet end of the lower pipe 14 is fixedly connected to the top of the access plate 12, and the inlet of the lower pipe 14 is connected to the inside of the straight groove. A branch pipe 11 is fixedly connected between the outlet of the sub-heat exchange pipe 7 and the outer wall of the lower pipe 14. The outlet end of the upper pipe 13 is fixedly connected to the inlet of the main heat exchange pipe 6. An upper one-way valve 15 is provided on the branch pipe 11. The setting of the upper one-way valve 15 prevents the refrigerant passing through the lower pipe 14 from entering the branch pipe 11 and then entering the sub-heat exchange pipe 7; When the battery pack 2 of the energy storage device is operating in a high-load charge and discharge state, the refrigerant generated by the liquid cooler 4 enters each upper tube 13 through the liquid inlet pipe 8, and then enters the main heat exchange tube 6 under each battery pack 2. The refrigerant is in direct contact with the battery cell casing of the battery pack 2 and can quickly absorb heat. The refrigerant after heat exchange is then discharged into the Z-shaped groove through the other end of the main heat exchange tube 6. At this time, since the upper plate 17 close to the side of the sub-heat exchange tube 7 is in a blocked state, the refrigerant that enters will be discharged from the upper circular hole 23 on the upper plate 17 on the other side, enter the lower tube 14, and then flow into the liquid outlet pipe 9 back to the liquid cooler 4 for cooling treatment. This is repeated to quickly dissipate the heat of the battery pack 2.

[0023] The adjustment mechanism includes an electric telescopic cylinder 16, which is fixedly connected to the side wall of the conversion block 10. Upper plates 17 are fixedly connected to both sides of the inner side of the straight groove relative to the Z-shaped groove. Upper circular holes 23 are opened through the side walls of the upper plates 17. An upper rubber block 18 is provided between the upper plates 17, and both ends of the upper rubber block 18 are configured as conical shapes. A push rod 19 is provided on the side wall of the upper rubber block 18. The output end of the electric telescopic cylinder 16 passes through the inner side of the straight groove and is fixedly connected to the side wall of the push rod 19. The output end of the electric telescopic cylinder 16 is sealed and slidably connected to the conversion block 10. The side wall of the upper rubber block 18 is fixedly connected to a cylinder 30, a circular plate 31 is slidably connected inside the cylinder 30, the push rod 19 is fixedly connected to the side wall of the circular plate 31, and an upper spring 32 is fixedly connected between the side wall of the circular plate 31 and the side wall of the upper rubber block 18; When the battery pack 2 is in a low load state and the temperature of the battery pack 2 is low, the electric telescopic cylinder 16 can be operated to start driving the push rod 19. During this process, the movement of the push rod 19 will push the circular plate 31 and the upper spring 32, and then drive the cylinder 30 and the upper rubber block 18 to move under the elastic force of the upper spring 32, and then move the upper rubber block 18 out from the upper plate 17 close to the side of the sub-heat exchange tube 7, and then move the conical surface on the other side of the upper rubber block 18 into the upper circular hole 23 on the other upper plate 17 to block the upper circular hole 23, and then the refrigerant flowing out of the main heat exchange tube 6 will enter the straight groove through the Z-shaped groove, and then enter the side groove through the unblocked upper circular hole 23, and then enter from the inlet of the sub-heat exchange tube 7, so that the refrigerant passes through the bottom of the battery cell shell of the battery pack 2 again for heat exchange, extending the time the refrigerant stays under the battery pack 2 for heat exchange, and returns to the liquid cooler 4 after fully absorbing heat.

[0024] To sum up, through the design of the above structure, when the temperature of the battery pack 2 is low, the refrigerant flowing out of the main heat exchange pipe 6 can be automatically discharged into the sub-heat exchange pipe 7 for re-heat exchange, and the time for the refrigerant to stay under the battery pack 2 for heat exchange is adjusted. After fully absorbing heat, it returns to the liquid cooler 4, thereby reducing the temperature difference of the refrigerant in the pipeline and improving the temperature uniformity of the entire system.

[0025] On the basis of the above embodiments, it was found during use that when the battery pack 2 is in different temperature ranges, it is difficult to meet complex temperature regulation requirements by simply switching the main heat exchange tube 6 and the sub-heat exchange tube 7. In particular, when the temperature of the battery pack 2 is in the intermediate temperature range, the residence time of the refrigerant cannot be finely adjusted. In order to solve the above problems, the above structure has been further improved.

[0026] A branch pipe 20 is fixedly connected between the middle portion of the branch heat exchange pipe 7 and the outer wall of the conversion block 10. The branch pipe 20 is in communication with the branch heat exchange pipe 7 and the interior of another side groove. A lower one-way valve 21 is provided on the branch pipe 20. The setting of the lower one-way valve 21 can prevent the refrigerant flowing through the branch heat exchange pipe 7 from entering the branch pipe 20 and the side groove, thereby avoiding excessive heat exchange. The inner side of the straight groove is fixedly connected to the position beside the side groove, and the side walls of the side plates 22 are penetrated by a lower circular hole 24. The inner side of the straight groove is slidably connected to the position between the side plates 22 with a slider 25. The slider 25 slides between the two side plates 22. Both sides of the slider 25 are fixedly connected to a lower rubber block 26, and the side away from the lower rubber block 26 is set to a cone shape. The cone shape can be used to achieve a tight seal of the lower circular hole 24 by squeezing the lower rubber block 26. An oblique groove 27 is opened on the slider 25, and a round rod 28 is inserted in the oblique groove 27. The top of the round rod 28 is fixedly connected to a push block 29, and the bottom end of the outer wall of the push rod 19 is fixedly connected to the lower plate 33. A lower spring 34 is fixedly connected between the inner side of the straight groove and the side wall of the push block 29. Through the setting of the lower spring 34, when the electric telescopic cylinder 16 is reset and the lower plate 33 releases the thrust on the push block 29, the push block 29 and the round rod 28 are pulled to reset, and then the slider 25 is pulled to reset through the inclined groove 27, thereby driving the lower rubber block 26 to block the lower round hole 24 on the inlet side of the heat exchange tube 7, and the side wall of the push block 29 leaves a gap for the lower plate 33 to push, and one of the lower rubber blocks 26 is sealed and inserted in the lower round hole 24, and the round rod 28 is slidably connected to the bottom end of the straight groove, and the sliding direction of the round rod 28 is the same as the moving direction of the push rod 19; A pair of guide grooves 35 are formed on the inner side of the cylinder 30, and a pair of guide blocks 36 are fixedly connected to the outer wall of the circular plate 31. The guide blocks 36 are slidably connected to the inner sides of the guide grooves 35. The arrangement of the guide grooves 35 and the guide blocks 36 can guide the sliding of the circular plate 31 when the electric telescopic cylinder 16 pushes the push rod 19 and the circular plate 31 to slide inside the cylinder 30, thereby preventing the cylinder 30 from rotating on the circular plate 31 and affecting the stability of the device. By setting the branch pipe 20 and the lower rubber block 26, the heat exchange can be placed in three states. The first is that the refrigerant is directly discharged after passing through the main heat exchange pipe 6, which is the position with the fastest residence time. The second is that the refrigerant enters the branch pipe 20 from the middle of the branch heat exchange pipe 7 after passing through the main heat exchange pipe 6, which is a mid-range position of residence time (it should be noted here that when the branch pipe 20 is opened, the inlet of the branch heat exchange pipe 7 is in a blocked state and the liquid cannot flow. Then, when the refrigerant enters from the middle of the branch heat exchange pipe 7 from the branch pipe 20, the refrigerant will not flow to the inlet of the branch heat exchange pipe 7, but will only flow to the outlet). The third is that the refrigerant passes through the main heat exchange pipe 6 and enters from the inlet of the branch heat exchange pipe 7, which is the slowest gear of residence time. (It should be noted here that three interval temperature values ​​can be set before use and coordinated with the temperature monitoring unit in the battery pack 2. When the battery pack 2 is at the corresponding temperature, the controller controls the electric telescopic cylinder 16 to start and perform corresponding operations).

[0027] Therefore, when the residence time of the refrigerant needs to be adjusted to the slowest gear, the electric telescopic cylinder 16 can be controlled to continue to start pushing the push rod 19 to move (before this, when the electric telescopic cylinder 16 drives the upper rubber block 18 to block the upper circular hole 23 in front of the lower tube 14, and the lower rubber block 26 blocks the side plate 22 next to the inlet of the heat exchange tube 7, at the same time, the lower plate 33 on the push rod 19 moves to the side of the push block 29), and then the continued movement of the push rod 19 will drive the lower plate 33 to push the push block 29 to move at the same time, and gradually stretch the lower spring 34, and at the same time drive The round rod 28 slides. Since the sliding direction of the round rod 28 is different from that of the side plate 22, the sliding of the round rod 28 in the inclined groove 27 will squeeze the inclined groove 27 to drive the slider 25 to move, thereby driving the lower rubber block 26 to move out of the side plate 22 near the inlet of the branch heat exchange tube 7 and move to the lower circular hole 24 on the other side plate 22, thereby blocking the lower circular hole 24 next to the branch tube 20. The refrigerant entering the straight groove will enter the branch heat exchange tube 7 from the unblocked lower circular hole 24, changing the residence time of the refrigerant under the battery pack 2 for heat exchange, thereby improving the heat conversion efficiency.

[0028] In summary, through the design of the above structure, the position of the refrigerant discharged into the sub-heat exchange tube 7 can be further adjusted according to the temperature of the battery pack 2, thereby adjusting the time for the refrigerant to flow under the battery pack 2, further meeting different temperature adjustment requirements and improving the flexibility of the device.

[0029] The basic principles, main features and advantages of the present invention are shown and described above.

[0030] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and the specification only describe the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A direct-cooling industrial and commercial energy storage device, comprising an energy storage cabinet (1), and a battery pack (2), a high-voltage chamber (3), and a liquid cooler (4) arranged in the energy storage cabinet (1), characterized in that: Several mounting plates (5) are fixedly connected at equal intervals on the inner side of the energy storage cabinet (1), the battery pack (2) is arranged on the mounting plate (5), and an S-shaped main heat exchange tube (6) and an S-shaped branch heat exchange tube (7) are respectively provided on the mounting plate (5). A liquid inlet pipe (8) and a liquid outlet pipe (9) are provided in the energy storage cabinet (1), and the liquid inlet pipe (8) and the liquid outlet pipe (9) are both connected to the inlet and outlet ends of the liquid cooler (4). A conversion block (10) is provided on each mounting plate (5), and the conversion block (10) A straight groove is provided at the top, a Z-shaped groove is provided on the side wall of the straight groove, and side grooves are provided at both ends of the inner side of the straight groove. The inlet end of the sub-heat exchange pipe (7) is fixedly connected to the side wall of the conversion block (10), and the inlet of the sub-heat exchange pipe (7) is connected to one of the side grooves through the inlet end. The outlet end of the main heat exchange pipe (6) is fixedly connected to the side wall of the conversion block (10), and the outlet of the main heat exchange pipe (6) is connected to the Z-shaped groove through the inlet end. The conversion block (10) is provided with an adjustment mechanism for adjusting the flow direction of the refrigerant.

2. A direct-cooling industrial and commercial energy storage device according to claim 1, characterized in that: The outer walls of the liquid inlet pipe (8) and the liquid outlet pipe (9) are fixedly connected with an upper pipe (13) and a lower pipe (14) respectively at a position above the mounting plate (5). The conversion block (10) is sealed with an inspection plate (12) for blocking the straight groove, the Z-shaped groove and the side groove by bolts. The inlet end of the lower pipe (14) is fixedly connected to the top of the inspection plate (12), and the inlet of the lower pipe (14) is connected to the inside of the straight groove. A branch pipe (11) is fixedly connected between the outlet of the sub-heat exchange pipe (7) and the outer wall of the lower pipe (14). The outlet end of the upper pipe (13) is fixedly connected to the inlet of the main heat exchange pipe (6). An upper one-way valve (15) is provided on the branch pipe (11).

3. The direct-cooling industrial and commercial energy storage device according to claim 1, characterized in that: The adjustment mechanism includes an electric telescopic cylinder (16), the electric telescopic cylinder (16) is fixedly connected to the side wall of the conversion block (10), the inner side of the straight groove relative to both sides of the Z-shaped groove are fixedly connected to an upper plate (17), the side walls of the upper plate (17) are penetrated by an upper circular hole (23), an upper rubber block (18) is provided between the upper plates (17), and both ends of the upper rubber block (18) are set to be conical, and the side wall of the upper rubber block (18) is provided with a push rod (19), the output end of the electric telescopic cylinder (16) passes through the inner side of the straight groove and is fixedly connected to the side wall of the push rod (19), and the output end of the electric telescopic cylinder (16) is sealed and slidably connected to the conversion block (10).

4. The direct-cooling industrial and commercial energy storage device according to claim 1, characterized in that: A branch pipe (20) is fixedly connected between the middle of the branch heat exchange pipe (7) and the outer wall of the conversion block (10), and the branch pipe (20) is connected to the branch heat exchange pipe (7) and the inside of another side groove through and through, and a lower one-way valve (21) is provided on the branch pipe (20).

5. The direct-cooling industrial and commercial energy storage device according to claim 1, characterized in that: The inner side of the straight groove is fixedly connected to a side plate (22) relative to the side groove, and the side wall of the side plate (22) is penetrated by a lower circular hole (24). The inner side of the straight groove is slidably connected to a slider (25) relative to the side plate (22), and both sides of the slider (25) are fixedly connected to a lower rubber block (26), and the side away from the lower rubber block (26) is set to be conical. The slider (25) is provided with an inclined groove (27), and a round rod (28) is inserted into the inclined groove (27). The top of the round rod (28) is fixedly connected to a push block (29).

6. The direct-cooling industrial and commercial energy storage device according to claim 3, characterized in that: The side wall of the upper rubber block (18) is fixedly connected to a cylinder (30), a circular plate (31) is slidably connected inside the cylinder (30), the push rod (19) is fixedly connected to the side wall of the circular plate (31), an upper spring (32) is fixedly connected between the side wall of the circular plate (31) and the side wall of the upper rubber block (18), and the bottom end of the outer wall of the push rod (19) is fixedly connected to a lower plate (33).

7. The direct-cooling industrial and commercial energy storage device according to claim 5, characterized in that: A lower spring (34) is fixedly connected between the inner side of the straight groove and the side wall of the push block (29), and one of the lower rubber blocks (26) is sealed and inserted into the lower circular hole (24), and the round rod (28) is slidably connected to the bottom end of the straight groove.

8. The direct-cooling industrial and commercial energy storage device according to claim 6, characterized in that: A pair of guide grooves (35) are provided on the inner side of the cylinder (30), a pair of guide blocks (36) are fixedly connected to the outer wall of the circular plate (31), and the guide blocks (36) are slidably connected to the inner sides of the guide grooves (35).

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