Energy storage safety management cabinet for all-vanadium redox flow battery

Abstract

The utility model discloses an all-vanadium redox flow battery energy storage safety management cabinet which comprises a battery cabinet, partition plates are fixedly connected to the inner wall of the battery cabinet, the partition plates divide the interior of the battery cabinet into a plurality of identical cavities, energy storage mechanisms are arranged in the middles of the cavities, sliding rails are installed in the middles of the two side ends of each energy storage mechanism respectively, and the sliding rails are connected with the battery cabinet. Two cabinet doors are installed at an opening of the battery cabinet, a plurality of vent holes are formed in the surfaces of the cabinet doors at equal intervals, a plurality of first electric butterfly valves are fixedly connected to the ends, away from the cabinet doors, of the battery cabinet at equal intervals, and a plurality of second electric butterfly valves are fixedly connected to one ends of the cabinet doors at equal intervals; supporting legs are fixedly connected to the four corners of the lower end of the battery cabinet correspondingly. The all-vanadium redox flow battery pack is independently placed through the cavity, the heat dissipation fan dissipates heat of the all-vanadium redox flow battery pack in the cavity, the battery cabinet is closed through the first electric butterfly valve and the second electric butterfly valve, and the battery cabinet has a good heat preservation effect after being closed in cooperation with the cavity and the heat dissipation cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of battery energy storage cabinets, in particular to an all-vanadium liquid flow battery energy storage safety management cabinet. Background Art

[0002] All-vanadium flow battery is a redox battery with vanadium as the active material in a circulating flowing liquid state. Compared with lithium-ion batteries, all-vanadium flow batteries have better safety. Under the condition of a theoretical state of charge of 100%, even if the positive and negative electrolytes are directly mixed, the temperature rises from 32°C to 70°C, and the all-vanadium flow battery system will not produce risks such as combustion and fire. However, the electrolyte of vanadium batteries will become unstable in high temperature (above 40°C) or low temperature (below 10°C) environments.

[0003] Common battery energy storage cabinets use cooling fans to dissipate heat from the internal battery packs, and use the high temperature generated by the battery packs when charging and discharging to heat the inside of the battery energy storage cabinet in a low-temperature environment. However, the battery packs in the battery energy storage cabinet are in a space, so the heat generated by the battery packs will cause the temperature in the battery energy storage cabinet to rise rapidly, and the hot air will gather in the upper layer of the battery energy storage cabinet, causing the temperature of the bottom layer of the battery energy storage cabinet to be lower than that of the upper layer, making the battery packs on the bottom and top layers vulnerable to damage, affecting their service life. Utility Model Content

[0004] The purpose of the utility model is to provide an all-vanadium liquid flow battery energy storage safety management cabinet, which can place the battery pack in the battery energy storage cabinet in a separate space, facilitate the adjustment of the temperature of the working environment in the battery pack, ensure the normal operation of the battery pack, and at the same time improve the thermal insulation effect of the battery energy storage cabinet on the battery pack.

[0005] In order to achieve the above-mentioned purpose, a vanadium liquid flow battery energy storage safety management cabinet is provided, including a battery cabinet, the inner wall of the battery cabinet is fixedly connected with a partition, the partition divides the interior of the battery cabinet into a plurality of identical chambers, an energy storage mechanism is arranged in the middle of the chamber, and slide rails are respectively installed in the middle of the two side ends of the energy storage mechanism, and the track of the slide rail is fixedly connected to the side wall of the chamber, the opening of the battery cabinet is equipped with two cabinet doors, and the opposite ends of the two cabinet doors are respectively hinged and connected to the battery cabinet, and the surface of the cabinet door is equidistantly provided with a plurality of passages. The battery cabinet has a plurality of air holes, and the air holes are located in the middle of the chamber and are connected to the chamber. The end of the battery cabinet away from the cabinet door is equidistantly fixedly connected with a plurality of first electric butterfly valves, and the first electric butterfly valve is located in the middle of the chamber. One end of the first electric butterfly valve passes through the battery cabinet, and one end of the first electric butterfly valve extends to the side end of the energy storage mechanism. One end of the cabinet door is equidistantly fixedly connected with a plurality of second electric butterfly valves, and the second electric butterfly valve and the battery cabinet are located on the same side of the cabinet door. The second electric butterfly valve is connected to the air holes, and the four corners of the lower end of the battery cabinet are respectively fixedly connected with support legs. The battery pack in the battery energy storage cabinet can be placed in a separate space, which is convenient for adjusting the temperature of the working environment in the battery pack, ensuring the normal operation of the battery pack, and improving the insulation effect of the battery energy storage cabinet on the battery pack.

[0006] According to the all-vanadium liquid flow battery energy storage safety management cabinet, the energy storage mechanism is composed of a shell, a mounting plate, an all-vanadium liquid flow battery group and a heat dissipation fan, the slide rails are respectively installed on the two side ends of the shell, and the shell is located in the middle of the chamber, the mounting plate is arranged at one end of the shell, and the mounting plate and the cabinet door are located on the same side of the shell, the mounting plate and the outer end of the shell are installed with buckles, and the mounting plate and the shell are fixedly connected by the buckles, the all-vanadium liquid flow battery group is located in the shell, and one end of the all-vanadium liquid flow battery group is fixedly connected to the middle of the mounting plate, one end of the mounting plate is provided with an inlet, a heat dissipation cavity is provided in the shell, and the heat dissipation cavity is located on the outside of the all-vanadium liquid flow battery group, the heat dissipation fan is fixedly connected to the middle of one end of the shell away from the mounting plate, and the heat dissipation fan is connected to the heat dissipation cavity, the end of the heat dissipation fan away from the shell is connected to the first electric butterfly valve, and a plurality of heat dissipation holes are respectively provided on both sides of the shell, and the heat dissipation holes are connected to the heat dissipation cavity. The shell cooperates with the mounting plate to seal and protect the all-vanadium liquid flow battery pack. The heat generated during the charging and discharging process of the all-vanadium liquid flow battery pack is transferred to the shell. The cooling fan is used to allow air flow to enter the cooling cavity to dissipate heat from the shell.

[0007] According to the all-vanadium liquid flow battery energy storage safety management cabinet, one end of the heat dissipation fan is fixedly connected to a rubber ring, and the rubber ring is engaged with the first electric butterfly valve. The rubber ring buffers the energy storage mechanism after the energy storage mechanism is pushed into the battery cabinet to prevent the energy storage mechanism from colliding with the first electric butterfly valve and causing damage, and the rubber ring improves the sealing of the connection between the first battery butterfly valve and the energy storage mechanism.

[0008] According to the all-vanadium liquid flow battery energy storage safety management cabinet, a temperature sensor is fixedly connected to the inner wall of the heat dissipation cavity, and the temperature sensor is located on the side of the heat dissipation cavity close to the all-vanadium liquid flow battery group. The temperature sensor is used to detect the temperature inside the shell, thereby detecting the temperature of the all-vanadium liquid flow battery group, so that the device can adjust the temperature of the battery cabinet.

[0009] According to the all-vanadium liquid flow battery energy storage safety management cabinet, a handle is fixedly connected to the middle of one end of the mounting plate away from the all-vanadium liquid flow battery group. The handle facilitates the staff to pull the energy storage mechanism or pull the all-vanadium liquid flow battery group out of the housing.

[0010] According to the all-vanadium liquid flow battery energy storage safety management cabinet, the upper end of the battery cabinet is fixedly connected to a control cabinet, and the control cabinet is installed with a controller, a transformer and an inverter. The control cabinet is used to collect and process the detection data of the temperature sensor in the device, and control the operation of the first electric butterfly valve, the second electric butterfly valve and the cooling fan.

[0011] According to the all-vanadium liquid flow battery energy storage safety management cabinet, one end of the two cabinet doors is fixedly connected to a display panel, and the display panel is far away from the battery cabinet. The display panel is used to display the temperature data of each battery pack in the battery energy storage cabinet, which is convenient for staff to conduct inspections.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The all-vanadium liquid flow battery group is placed separately through the chamber, and the heat dissipation fan dissipates the heat of the all-vanadium liquid flow battery group in the chamber. The first electric butterfly valve and the second electric butterfly valve control the conduction between the battery cabinet and the outside world. The cooperation of the chamber and the heat dissipation cavity makes the battery cabinet have a good thermal insulation effect after being closed.

[0014] 2. The energy storage mechanism can be pulled out of the battery cabinet by using the slide rail, which is convenient for the staff to maintain the all-vanadium liquid flow battery pack. After the energy storage mechanism is pushed into the battery cabinet, the rubber ring automatically connects the cooling fan with the first electric butterfly valve, and ensures the sealing of the connection between the first electric butterfly valve and the cooling fan, ensuring the efficiency of the cooling fan in exhausting hot air.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is a three-dimensional diagram of an all-vanadium liquid flow battery energy storage safety management cabinet of the utility model;

[0018] Figure 2 A three-dimensional diagram of a battery cabinet of an all-vanadium liquid flow battery energy storage safety management cabinet of the utility model;

[0019] Figure 3 It is a partial cross-sectional view of a battery cabinet of an all-vanadium liquid flow battery energy storage safety management cabinet of the utility model;

[0020] Figure 4 It is a three-dimensional diagram of an energy storage mechanism of an all-vanadium liquid flow battery energy storage safety management cabinet of the utility model;

[0021] Figure 5 This is a cross-sectional view of an energy storage mechanism of an all-vanadium liquid flow battery energy storage safety management cabinet of the utility model;

[0022] Figure 6 It is a cross-sectional view of the cooperation between the energy storage mechanism and the first electric butterfly valve of an all-vanadium liquid flow battery energy storage safety management cabinet of the utility model;

[0023] Figure 7 It is a three-dimensional diagram of a cabinet door of an all-vanadium liquid flow battery energy storage safety management cabinet of the utility model.

[0024] In the figure: 1. control cabinet; 2. cabinet door; 3. vent; 4. display panel; 5. support leg; 6. battery cabinet; 7. slide rail; 8. energy storage mechanism; 9. chamber; 10. partition; 11. first electric butterfly valve; 12. shell; 13. mounting plate; 14. handle; 15. wire inlet; 16. heat dissipation hole; 17. all-vanadium liquid flow battery pack; 18. heat dissipation fan; 19. rubber ring; 20. heat dissipation cavity; 21. temperature sensor; 22. second electric butterfly valve. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1 - Figure 7The utility model provides a technical solution: a vanadium liquid flow battery energy storage safety management cabinet, including a battery cabinet 6, the inner wall of the battery cabinet 6 is fixedly connected with a partition 10, the partition 10 divides the inside of the battery cabinet 6 into a plurality of identical chambers 9, and an energy storage mechanism 8 is arranged in the middle of the chamber 9, the energy storage mechanism 8 is composed of a shell 12, a mounting plate 13, a vanadium liquid flow battery group 17 and a heat dissipation fan 18, the slide rails 7 are respectively installed at the two side ends of the shell 12, and the shell 12 is located in the middle of the chamber 9, the shell 12 is made of aluminum alloy or steel alloy with good thermal conductivity, the mounting plate 13 is arranged at one end of the shell 12, and the mounting plate 13 and the cabinet door 2 are located on the same side of the shell 12, and the mounting plate 13 and the outer end of the shell 12 are connected. A buckle is installed, and the mounting plate 13 and the shell 12 are fixedly connected by the buckle. The all-vanadium liquid flow battery group 17 is located in the shell 12, and one end of the all-vanadium liquid flow battery group 17 is fixedly connected to the middle part of the mounting plate 13. An inlet 15 is opened at one end of the mounting plate 13. A heat dissipation cavity 20 is provided in the shell 12, and the heat dissipation cavity 20 is located on the outside of the all-vanadium liquid flow battery group 17. A temperature sensor 21 is fixedly connected to the inner wall of the heat dissipation cavity 20, and the temperature sensor 21 is located on the side of the heat dissipation cavity 20 close to the all-vanadium liquid flow battery group 17. The temperature sensor 21 is used to detect the temperature in the shell 12, thereby detecting the temperature of the all-vanadium liquid flow battery group 17, so that the device can adjust the temperature of the battery cabinet 6. The heat dissipation fan 18 is fixedly connected to the middle of one end of the housing 12 away from the mounting plate 13, and the heat dissipation fan 18 is connected to the heat dissipation cavity 20. The end of the heat dissipation fan 18 away from the housing 12 is connected to the first electric butterfly valve 11. One end of the heat dissipation fan 18 is fixedly connected to a rubber ring 19, and the rubber ring 19 is engaged with the first electric butterfly valve 11. The rubber ring 19 buffers the energy storage mechanism 8 after the energy storage mechanism 8 is pushed into the battery cabinet 6 to prevent the energy storage mechanism 8 from colliding with the first electric butterfly valve 11 and causing damage. The rubber ring 19 also improves the sealing of the connection between the first battery butterfly valve and the energy storage mechanism 8. A plurality of heat dissipation holes 16 are respectively provided on both sides of the housing 12, and the heat dissipation holes 16 are connected to the heat dissipation cavity 20. The housing 12 cooperates with the mounting plate 13 to seal and protect the all-vanadium liquid flow battery group 17. The heat generated during the charging and discharging process of the all-vanadium liquid flow battery group 17 is transferred to the housing 12. The heat dissipation fan 18 is used to allow the airflow to enter the heat dissipation cavity 20 to dissipate the heat of the housing 12.Slide rails 7 are respectively installed in the middle of both side ends of the energy storage mechanism 8, and the tracks of the slide rails 7 are fixedly connected to the side walls of the chamber 9. Two cabinet doors 2 are installed at the opening of the battery cabinet 6, and the opposite ends of the two cabinet doors 2 are rotatably connected to the battery cabinet 6 in a hinged manner. A plurality of ventilation holes 3 are equidistantly provided on the surface of the cabinet door 2, and the ventilation holes 3 are located in the middle of the chamber 9 and are connected to the chamber 9. A plurality of first electric butterfly valves 11 are equidistantly fixedly connected to one end of the battery cabinet 6 away from the cabinet door 2, and the first electric butterfly valve 11 is located in the middle of the chamber 9. One end of the first electric butterfly valve 11 passes through the battery cabinet 6, and one end of the first electric butterfly valve 11 extends to the side end of the energy storage mechanism 8. A plurality of second electric butterfly valves 22 are equidistantly fixedly connected to one end of the cabinet door 2, and the second electric butterfly valve 22 and the battery cabinet 6 are located on the same side of the cabinet door 2, and the second electric butterfly valve 22 is connected to the ventilation holes. Support legs 5 are respectively fixedly connected to the four corners of the lower end of the battery cabinet 6. A handle 14 is fixedly connected to the middle of one end of the mounting plate 13 away from the all-vanadium liquid flow battery pack 17. The handle 14 is convenient for the staff to pull the energy storage mechanism 8 or pull the all-vanadium liquid flow battery pack 17 out of the housing 12. A control cabinet 1 is fixedly connected to the upper end of the battery cabinet 6, and a controller, a transformer and an inverter are installed in the control cabinet 1. The control cabinet 1 is used to collect and process the detection data of the temperature sensor 21 in the device, and control the operation of the first electric butterfly valve 11, the second electric butterfly valve 22 and the cooling fan 18. A display panel 4 is fixedly connected to one end of the two cabinet doors 2, and the display panel 4 is away from the battery cabinet 6. The display panel 4 is used to display the temperature data of each battery pack in the battery energy storage cabinet, which is convenient for the staff to conduct inspections.

[0027] Working principle: During heat dissipation, the heat generated during the charging and discharging process of the all-vanadium liquid flow battery group 17 is transferred to the shell 12 and the mounting plate 13, the first electric butterfly valve 11 and the second electric butterfly valve 22 are opened, and the heat dissipation fan 18 works. The outside low-temperature air enters the chamber 9 through the vent 3 to cool the mounting plate 13, and then the low-temperature air enters the heat dissipation cavity 20 through the heat dissipation hole 16 to dissipate the heat of the shell 12. Finally, the air is discharged from the battery cabinet 6 through the heat dissipation fan 18 and the first electric butterfly valve 11 in turn. When the battery energy storage cabinet works in a low-temperature environment, the first electric butterfly valve 11 and the second electric butterfly valve 22 are closed, the heat dissipation fan 18 stops working, and the air in the chamber 9 and the heat dissipation cavity 20 is used as a heat insulation material to keep the all-vanadium liquid flow battery group 17 warm.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An all-vanadium liquid flow battery energy storage safety management cabinet, comprising a battery cabinet (6), characterized in that: The inner wall of the battery cabinet (6) is fixedly connected to a partition (10), and the partition (10) divides the interior of the battery cabinet (6) into a plurality of identical chambers (9). An energy storage mechanism (8) is provided in the middle of the chamber (9), and slide rails (7) are respectively installed in the middle of the two side ends of the energy storage mechanism (8), and the track of the slide rail (7) is fixedly connected to the side wall of the chamber (9). The opening of the battery cabinet (6) is equipped with two cabinet doors (2), and the opposite ends of the two cabinet doors (2) are respectively hinged and rotatably connected to the battery cabinet (6). The surface of the cabinet door (2) is provided with a plurality of vent holes (3) at equal intervals, and the vent holes (3) are located in the middle of the chamber (9) and are aligned with the chamber. (9), one end of the battery cabinet (6) away from the cabinet door (2) is equidistantly fixedly connected to a plurality of first electric butterfly valves (11), and the first electric butterfly valves (11) are located in the middle of the chamber (9), one end of the first electric butterfly valve (11) passes through the battery cabinet (6), and one end of the first electric butterfly valve (11) extends to the side end of the energy storage mechanism (8), one end of the cabinet door (2) is equidistantly fixedly connected to a plurality of second electric butterfly valves (22), and the second electric butterfly valves (22) and the battery cabinet (6) are located on the same side of the cabinet door (2), the second electric butterfly valves (22) are connected to the ventilation holes, and the four corners of the lower end of the battery cabinet (6) are respectively fixedly connected to support legs (5).

2. The all-vanadium liquid flow battery energy storage safety management cabinet according to claim 1, characterized in that: The energy storage mechanism (8) is composed of a shell (12), a mounting plate (13), an all-vanadium liquid flow battery group (17) and a heat dissipation fan (18); the slide rails (7) are respectively mounted on both side ends of the shell (12), and the shell (12) is located in the middle of the chamber (9); the mounting plate (13) is arranged at one end of the shell (12), and the mounting plate (13) and the cabinet door (2) are located on the same side of the shell (12); buckles are installed on the outer ends of the mounting plate (13) and the shell (12), and the mounting plate (13) and the shell (12) are fixedly connected by the buckle; the all-vanadium liquid flow battery group (17) is located in the shell (12), and the all-vanadium liquid flow battery group (17) One end of the housing (12) is fixedly connected to the middle of a mounting plate (13); one end of the mounting plate (13) is provided with a wire inlet (15); a heat dissipation cavity (20) is provided in the housing (12), and the heat dissipation cavity (20) is located outside the all-vanadium liquid flow battery group (17); the heat dissipation fan (18) is fixedly connected to the middle of one end of the housing (12) away from the mounting plate (13), and the heat dissipation fan (18) is communicated with the heat dissipation cavity (20); one end of the heat dissipation fan (18) away from the housing (12) is communicated with a first electric butterfly valve (11); and a plurality of heat dissipation holes (16) are respectively provided on both sides of the housing (12), and the heat dissipation holes (16) are communicated with the heat dissipation cavity (20).

3. The all-vanadium liquid flow battery energy storage safety management cabinet according to claim 2, characterized in that: One end of the heat dissipation fan (18) is fixedly connected to a rubber ring (19), and the rubber ring (19) is engaged with the first electric butterfly valve (11).

4. The all-vanadium liquid flow battery energy storage safety management cabinet according to claim 2, characterized in that: A temperature sensor (21) is fixedly connected to the inner wall of the heat dissipation cavity (20), and the temperature sensor (21) is located on a side of the heat dissipation cavity (20) close to the all-vanadium liquid flow battery group (17).

5. The all-vanadium liquid flow battery energy storage safety management cabinet according to claim 2, characterized in that: A handle (14) is fixedly connected to the middle of one end of the mounting plate (13) away from the all-vanadium liquid flow battery pack (17).

6. The all-vanadium liquid flow battery energy storage safety management cabinet according to claim 1, characterized in that: The upper end of the battery cabinet (6) is fixedly connected to a control cabinet (1), and a controller, a transformer and an inverter are installed in the control cabinet (1).

7. The all-vanadium liquid flow battery energy storage safety management cabinet according to claim 1, characterized in that: One end of the two cabinet doors (2) is fixedly connected to a display panel (4), and the display panel (4) is away from the battery cabinet (6).

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