Air duct structure based on industrial and commercial energy storage system

Abstract

The utility model discloses an air duct structure based on an industrial and commercial energy storage system, which comprises an energy storage cabinet, a refrigeration cabinet I mounted at the top of the energy storage cabinet, a refrigeration cabinet II mounted at the bottom of the energy storage cabinet, a plurality of heat dissipation components mounted in the energy storage cabinet, and a battery pack arranged in the energy storage cabinet, the heat dissipation assembly comprises two first heat dissipation fins and two second heat dissipation fins, the two first heat dissipation fins are installed on the two sides of the battery pack respectively, the two second heat dissipation fins are installed at the top and the bottom of the battery pack respectively, fans are installed on one sides of the first heat dissipation fins and the second heat dissipation fins, an air conditioner is installed in the first refrigeration cabinet, a main air channel is installed in the energy storage cabinet, and an air outlet is formed in the energy storage cabinet. The branch air ducts which are symmetrically distributed are arranged on the two sides of the main air duct, the refrigerating effect of the battery pack is enhanced, the output end of the conveying pump is connected with a conveying pipe, and part of the conveying pipe is connected with a coiled pipe. According to the utility model, the loss of the air conditioner is reduced, the refrigeration uniformity of the battery pack is enhanced, and the refrigeration effect of the battery pack is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation in the energy storage industry, and in particular to an air duct structure based on an industrial and commercial energy storage system. Background Art

[0002] When analyzing the energy storage process, the part of the object or space range that is demarcated to determine the research object is called the energy storage system. It includes the input and output of energy and matter, and the energy conversion and storage equipment. The energy storage system often involves multiple energies, multiple devices, multiple materials, and multiple processes. It is a complex energy system that changes over time and requires multiple indicators to describe its performance. Common evaluation indicators include energy storage density, energy storage power, energy storage efficiency, energy storage price, and environmental impact.

[0003] Chinese patent number CN117791014A provides a high-security container-type industrial and commercial energy storage system, including a container body, an isolation plate is arranged inside the container body, and isolation distribution bins and isolation energy storage bins are arranged on both sides of the isolation plate, and also includes: a unit energy storage bin, and a plurality of unit energy storage bins are evenly arranged along the horizontal center line direction of the isolation energy storage bin. When a thermal runaway occurs to an energy storage battery pack in any unit battery rack of the present invention, the temperature monitoring probe can drive the unit battery rack loaded with the corresponding energy storage battery pack to move horizontally when it detects temperature abnormality, and move it out of the unit energy storage bin to expose it to the outside of the container body, so as to isolate the energy storage battery pack on the corresponding unit battery rack from the batteries in other unit energy storage bins, avoid the fire from spreading rapidly to other batteries, and facilitate the processing of the out-of-control battery, which is beneficial to improve the safety of the entire energy storage system.

[0004] The technical solution of existing products is usually to install an air-conditioning unit above the entire industrial and commercial energy storage cabinet. The air-conditioning unit and the battery pack are installed in two separate compartments respectively. The air outlet of the air conditioner is connected to the battery pack placement compartment. There is no other air duct in the battery pack placement compartment. Because the cold air from the air conditioner is freely and unrestrainedly filled in the entire battery compartment, the entire energy storage cabinet is made of metal welding, and the metal plate cannot isolate the temperature well. In addition, the surface area of ​​the energy storage cabinet is large, so a large part of the cold air is conducted to the air through the cabinet body, causing loss; the cooling of the battery compartment is uneven; the pressure at the air inlet of the battery pack is relatively small, and the cooling of the battery pack is not good. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the purpose of the present utility model is to provide a heat dissipation system for an industrial and commercial energy storage system, based on an air duct structure for the industrial and commercial energy storage system.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a technical solution adopted by the air duct structure based on the industrial and commercial energy storage system: comprising an energy storage cabinet, a refrigeration cabinet 1 is installed on the top of the energy storage cabinet, a refrigeration cabinet 2 is installed on the bottom of the energy storage cabinet, a plurality of heat dissipation components are installed inside the energy storage cabinet, a battery pack is arranged inside the energy storage cabinet, the heat dissipation component comprises two heat sinks 1 and two heat sinks 2, the two heat sinks 1 are respectively installed on both sides of the battery pack, the two heat sinks 2 are respectively installed on the top and bottom of the battery pack, and one of the heat sinks 1 and the heat sink 2 A fan is installed on the side, an air conditioner is installed inside the refrigeration cabinet one, a main air duct is installed inside the energy storage cabinet, and symmetrically distributed branch air ducts are arranged on both sides of the main air duct, a liquid nitrogen tank is installed inside the refrigeration cabinet two, a cooling tank is arranged on one side of the liquid nitrogen tank, a delivery pump is installed on the top of the cooling tank, the input end of the delivery pump is connected with the cooling tank through a pipeline, the output end of the delivery pump is connected with a delivery pipe, a partial section of the delivery pipe is connected with a serpentine pipe, the serpentine pipe is arranged in the branch air duct, a return pipe is installed at the other end of the delivery pipe, and one end of the return pipe is connected with the cooling tank.

[0009] As a preferred solution, a cabinet door 1 is installed on the front of the refrigeration cabinet 1 via a hinge, and a protective net is embedded and installed on the front of the cabinet door 1.

[0010] As a preferred solution, a cabinet door 2 is installed on the front of the second refrigeration cabinet via a hinge, and a handle is embedded and installed on the front of the second cabinet door.

[0011] As a preferred solution, a hanger is installed on the top of the first refrigerating cabinet, and a base is installed on the bottom of the second refrigerating cabinet.

[0012] As a preferred solution, a plurality of transverse partitions are installed inside the energy storage cabinet, and a vertical partition is installed between two adjacent transverse partitions.

[0013] As a preferred solution, an air outlet pipe is installed at the output end of the air conditioner, and the air outlet pipe is connected to the top of the main air duct.

[0014] As a preferred solution, a heat preservation pipe is installed on one side of the liquid nitrogen tank, one end of the heat preservation pipe passes through the cooling tank, and a section of the heat preservation pipe located in the cooling tank is a heat-conducting pipe.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides an air duct structure based on an industrial and commercial energy storage system, which has the following beneficial effects:

[0017] 1. Reduced air conditioning losses: The air duct is made of heat-insulating plastic material, so the cold air from the air conditioner will not fill the entire energy storage cabinet. Through the branch air duct, the cold air can directly reach the air inlet of the battery pack, avoiding the waste of cold air and thus reducing the loss of the air conditioner.

[0018] 2. Enhanced cooling uniformity of the battery pack: According to the installation layout of the battery pack, the branch air duct structure is symmetrical on the left and right, with a cross-sectional area design that is wide at the top and narrow at the bottom; the symmetrical main air duct makes the cross-sectional areas of the left and right branch air ducts the same; the main air duct cross-sectional area design that is wide at the top and narrow at the bottom, because the cold air flow rate at the air inlet of the main air duct is faster, the cross-sectional area is increased to reduce the flow rate, and the cold air flow rate at the end of the main air duct is slower, and the cross-sectional area is reduced to increase the flow rate, so that the cold air flow distributed to the left and right branch air ducts can be consistent, thereby improving the cooling uniformity of the upper and lower, left and right battery packs.

[0019] 3. Enhanced cooling effect of the battery pack: The air outlets of the left and right branch air ducts are directly and tightly fastened with the air inlet of the battery pack, so that the cold air is directly delivered to the battery pack. The fan installed in front of the battery pack provides part of the ventilation pressure, and the air conditioner also provides part of the ventilation pressure, which speeds up the flow rate of cold air inside the battery pack and improves the cooling effect.

[0020] 4. The entire energy storage cabinet retains the original compartment design and air conditioning top design, and adds a duct structure assembly that can guide and limit flow to the battery pack compartment. The duct is made of plastic insulation material, and the air inlet of the duct is tightly fitted with the air outlet of the air conditioner. According to the layout of the battery pack, the duct is designed with multiple outlets, and each outlet is directly tightly fitted with the air inlet at the rear end of the battery pack, so that the cold air enters the duct and directly reaches the battery pack air inlet, and will not escape and fill the entire battery compartment. The branch duct outlet is designed to be symmetrical on the left and right, and the upper and lower main duct cross-sectional areas are designed to be wide at the top and narrow at the bottom to achieve a uniform diversion effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the battery pack, heat sink and heat dissipation fan structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the back structure of the utility model;

[0025] Figure 5 It is a schematic diagram of the internal structure of the air duct of the utility model.

[0026] In the figure: 1. Energy storage cabinet; 2. Refrigeration cabinet one; 3. Refrigeration cabinet two; 4. Cabinet door one; 5. Protective net; 6. Cabinet door two; 7. Handle; 8. Hanger; 9. Base; 10. Horizontal partition; 11. Vertical partition; 12. Heat dissipation component; 13. Battery pack; 14. Heat sink one; 15. Heat sink two; 16. Fan; 17. Air conditioner; 18. Air outlet duct; 19. Main air duct; 20. Air duct; 21. Liquid nitrogen tank; 22. Insulation pipe; 23. Cooling tank; 24. Delivery pump; 25. Delivery pipe; 26. Serpentine pipe; 27. Reflux pipe. DETAILED DESCRIPTION

[0027] The present invention is further described and illustrated below in conjunction with specific embodiments and accompanying drawings:

[0028] See also Figure 1-5 The utility model comprises an energy storage cabinet 1, a refrigeration cabinet 2 is installed on the top of the energy storage cabinet 1, a plurality of heat dissipation components 12 are installed inside the energy storage cabinet 1, a plurality of transverse partitions 10 are installed inside the energy storage cabinet 1, a vertical partition 11 is installed between two adjacent transverse partitions 10, the heat dissipation components 12 are placed on the transverse partitions 10, a battery pack 13 is arranged inside the energy storage cabinet 1, the heat dissipation components 12 comprise two heat sinks 14 and two heat sinks 15, the heat sinks 14 and the heat sinks 15 can quickly absorb the heat of the battery pack 13, and can quickly dissipate the heat of the battery pack 13 in conjunction with other equipment, the two heat sinks 14 are respectively installed on both sides of the battery pack 13, the two heat sinks 15 are respectively installed on the top and the bottom of the battery pack 13, a fan 16 is installed on one side of the heat sink 14 and the heat sink 15, the fan 16 installed in front of the battery pack 13 provides a part of the ventilation pressure, and the air conditioner 17 also provides a part of the ventilation pressure, so that the flow rate of cold air inside the battery pack 13 is accelerated, and the heat dissipation is improved. The refrigeration effect is improved. At the same time, the air duct is made of heat-insulating plastic material. An air conditioner 17 is installed inside the refrigeration cabinet 2. An air outlet duct 18 is installed at the output end of the air conditioner 17. The air outlet duct 18 is connected to the top of the main air duct 19. The main air duct 19 is installed inside the energy storage cabinet 1. The cross-sectional area of ​​the main air duct 19 is designed to be wide at the top and narrow at the bottom. Because the cold air flow rate at the air inlet of the main air duct 19 is faster, the cross-sectional area is increased to reduce the flow rate. The cold air flow rate at the end of the main air duct 19 is slower, and the cross-sectional area is reduced to increase the flow rate. In this way, the cold air flow rate distributed to the left and right branch air ducts 20 can be consistent, thereby improving the cooling uniformity of the upper and lower and left and right battery packs 13. The main air duct 19 is provided with symmetrically distributed branch air ducts 20 on both sides. The air conditioner 17 allows the cold air to enter the main air duct 19 through the air outlet pipe 18, and then directly delivers it to the battery pack 13 through the branch air duct 20. The branch air duct 20 is symmetrical in structure, with a cross-sectional area design that is wide at the top and narrow at the bottom. The left and right symmetrical main air duct 19 makes the cross-sectional areas of the left and right branch air ducts 20 the same;

[0029] A refrigeration cabinet 23 is installed at the bottom of the energy storage cabinet 1, and a liquid nitrogen tank 21 is installed inside the refrigeration cabinet 23. An insulation pipe 22 is installed on one side of the liquid nitrogen tank 21. One end of the insulation pipe 22 passes through the cooling tank 23, and the insulation pipe 22 is located in the cooling tank 23. The section is a heat-conducting pipe. A cooling tank 23 is arranged on one side of the liquid nitrogen tank 21. Liquid nitrogen enters the refrigeration pipe to cool the coolant inside the cooling tank 23. A delivery pump 24 is installed on the top of the cooling tank 23. The delivery pump 24 passes the cold zone liquid through the cooling pipe. The delivery pipe 25 enters into the serpentine pipe 26, thereby further cooling the air flowing in the branch air duct 20. The input end of the delivery pump 24 is connected to the cooling tank 23 through a pipeline, and the output end of the delivery pump 24 is connected to the delivery pipe 25. A partial section of the delivery pipe 25 is connected to the serpentine pipe 26. The serpentine pipe 26 is arranged in the branch air duct 20. A return pipe 27 is installed at the other end of the delivery pipe 25. One end of the return pipe 27 is connected to the cooling tank 23, and the coolant flows back to the cooling tank 23 through the return pipe 27.

[0030] As a preferred solution, a cabinet door 4 is installed on the front of the refrigeration cabinet 2 through a hinge, and a protective net 5 is embedded in the front of the cabinet door 4. The protective net 5 can also provide an air outlet for the cabinet door 4 to discharge the heat of the battery pack 13 to the outside. A cabinet door 6 is installed on the front of the refrigeration cabinet 3 through a hinge, and a handle 7 is embedded in the front of the cabinet door 6. The handle 7 is convenient for opening the refrigeration cabinet 3. A hanger 8 is installed on the top of the refrigeration cabinet 2, and a base 9 is installed at the bottom of the refrigeration cabinet 3.

[0031] The working principle of the utility model is: the energy storage cabinet 1 is placed at a designated position, and the heat sink 14 and the heat sink 2 15 are fixedly installed on the outside of the battery pack 13. The heat sink 14 and the heat sink 2 15 can quickly absorb the heat of the battery pack 13, and then cooperate with other equipment to quickly dissipate the heat of the battery pack 13. When in use, the air conditioner 17 is started, and the air conditioner 17 sends cold air into the main air duct 19 through the air outlet pipe 18, and then directly delivers it to the battery pack 13 through the branch air duct 20. According to the installation layout of the battery pack 13, the structure of the branch air duct 20 is The left-right symmetry, the upper-wide and lower-narrow cross-sectional area design, the left-right symmetric main air duct 19 makes the cross-sectional areas of the left and right branch air ducts 20 the same; the upper-wide and lower-narrow cross-sectional area design of the main air duct 19, because the cold air flow rate at the air inlet of the main air duct 19 is faster, the cross-sectional area is increased to reduce the flow rate, and the cold air flow rate at the end of the main air duct 19 is slower, the cross-sectional area is reduced to increase the flow rate, so that the cold air flow rate distributed to the left and right branch air ducts 20 can be consistent, thereby improving the cooling uniformity of the upper and lower, left and right battery packs 13, and the left and right branch air ducts 20 outlet The outlet is directly and tightly fastened with the air inlet of the battery pack 13, so that the cold air is directly delivered to the battery pack 13. The fan 16 installed in front of the battery pack 13 provides a part of the ventilation pressure, and the air conditioner 17 also provides a part of the ventilation pressure, so that the flow rate of the cold air inside the battery pack 13 is accelerated, and the cooling effect is improved. At the same time, the fan 16 is made of heat-insulating plastic material, and the cold air of the air conditioner 17 will not fill the entire energy storage cabinet 1. Through the branch air duct 20, the cold air can directly reach the air inlet of the battery pack 13, avoiding the waste of cold air. , thereby reducing the loss of the air conditioner 17. At the same time, the valve on the insulation pipe 22 allows the liquid nitrogen in the liquid nitrogen tank 21 to enter the refrigeration pipe in the cooling tank 23. The liquid nitrogen entering the refrigeration pipe can cool the coolant inside the cooling tank 23. Then the delivery pump 24 is started. The delivery pump 24 passes the cold zone liquid through the delivery pipe 25 into the serpentine pipe 26, thereby further cooling the air flowing in the branch air duct 20, thereby further improving the heat dissipation effect of the battery pack 13, and then the coolant flows back to the cooling tank 23 through the reflux pipe 27.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. An air duct structure based on an industrial and commercial energy storage system, comprising an energy storage cabinet (1), characterized in that: A refrigerating cabinet (2) is installed on the top of the energy storage cabinet (1), a refrigerating cabinet (3) is installed on the bottom of the energy storage cabinet (1), a plurality of heat dissipation components (12) are installed inside the energy storage cabinet (1), a battery pack (13) is arranged inside the energy storage cabinet (1), the heat dissipation component (12) comprises two heat dissipation fins (14) and two heat dissipation fins (15), the two heat dissipation fins (14) are installed on both sides of the battery pack (13), the two heat dissipation fins (15) are installed on the top and bottom of the battery pack (13), a fan (16) is installed on one side of the heat dissipation fin (14) and the heat dissipation fin (15), an air conditioner (17) is installed inside the refrigerating cabinet (2), and a cooling fan (16) is installed on the cooling fan (17) inside the energy storage cabinet (1). A main air duct (19) is provided, and symmetrically distributed branch air ducts (20) are provided on both sides of the main air duct (19); a liquid nitrogen tank (21) is installed inside the second refrigeration cabinet (3); a cooling tank (23) is provided on one side of the liquid nitrogen tank (21); a delivery pump (24) is installed on the top of the cooling tank (23); the input end of the delivery pump (24) is connected to the cooling tank (23) through a pipeline; the output end of the delivery pump (24) is connected to a delivery pipe (25); a part of the delivery pipe (25) is connected to a serpentine pipe (26); the serpentine pipe (26) is provided in the branch air duct (20); a return pipe (27) is installed at the other end of the delivery pipe (25); one end of the return pipe (27) is connected to the cooling tank (23).

2. The air duct structure based on the industrial and commercial energy storage system according to claim 1 is characterized in that: A cabinet door (4) is installed on the front of the refrigeration cabinet (2) via a hinge, and a protective net (5) is embedded and installed on the front of the cabinet door (4).

3. The air duct structure based on the industrial and commercial energy storage system according to claim 1 is characterized in that: The front of the second refrigeration cabinet (3) is provided with a second cabinet door (6) via a hinge, and the front of the second cabinet door (6) is provided with a handle (7) embedded therein.

4. The air duct structure based on the industrial and commercial energy storage system according to claim 1 is characterized in that: A hanger (8) is installed on the top of the first refrigerating cabinet (2), and a base (9) is installed on the bottom of the second refrigerating cabinet (3).

5. The air duct structure based on the industrial and commercial energy storage system according to claim 1 is characterized in that: A plurality of transverse partitions (10) are installed inside the energy storage cabinet (1), and a vertical partition (11) is installed between two adjacent transverse partitions (10).

6. The air duct structure based on the industrial and commercial energy storage system according to claim 1 is characterized in that: An air outlet pipe (18) is installed at the output end of the air conditioner (17), and the air outlet pipe (18) is connected to the top of the main air duct (19).

7. The air duct structure based on the industrial and commercial energy storage system according to claim 1 is characterized in that: A heat preservation pipe (22) is installed on one side of the liquid nitrogen tank (21), one end of the heat preservation pipe (22) passes through the cooling tank (23), and a section of the heat preservation pipe (22) located in the cooling tank (23) is a heat-conducting pipe.

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