Quick pressure release valve for large energy storage cabinet

Abstract

The utility model discloses a quick pressure release valve for a large energy storage cabinet. The quick pressure release valve comprises a valve main body, a gland, an inner special-shaped ring, an outer O-shaped ring, a guide block, a spring and a guide shaft, wherein the inner special-shaped ring is arranged in a groove in the upper side of the valve main body, and the outer O-shaped ring is arranged in a groove in the lower side of the valve main body; the guide block is arranged in the middle of the valve main body; the spring is arranged on the outer ring of the guide shaft in a sleeving manner; the guide shaft penetrates through the guide block from the lower side of the valve body and then is connected with the gland, and the gland and the inner special-shaped ring are sealed. According to the technical scheme provided by the utility model, a larger pressure relief area can be provided, the internal pressure is reduced, and the quick pressure relief requirement of a large energy storage cabinet is met.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof valves, in particular to a quick pressure relief valve used for a large energy storage cabinet. Background Art

[0002] In recent years, with the rapid development of the new energy industry, large energy storage cabinets have gradually become popular as a basic equipment that can store electrical energy. Along with this, there are issues regarding the safety of electricity use in energy storage cabinets. When the battery pack of the energy storage cabinet is in a state of thermal runaway, the explosion-proof valve needs to be used to quickly release pressure to prevent explosions caused by excessive internal pressure. The explosion-proof valves currently on the market are mainly used for rapid pressure relief on battery packs and are only suitable for explosion-proof pressure relief of single battery packs. The problem with the existing structure is that the pressure relief area is small, and it is difficult to exhaust in time in the case of thermal runaway of large energy storage cabinets, which needs to be improved. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the utility model proposes a quick pressure relief valve for a large energy storage cabinet, which can provide a larger pressure relief area, reduce internal pressure, and meet the quick pressure relief requirements of the large energy storage cabinet.

[0004] A quick pressure relief valve for a large energy storage cabinet, comprising a valve body, a gland, an inner special-shaped ring, an outer O-ring, a guide block, a spring and a guide shaft;

[0005] Wherein, the inner special-shaped ring is arranged in the upper groove of the valve body, and the outer O-ring is arranged in the lower groove of the valve body;

[0006] The guide block is arranged in the middle of the valve body; the spring is sleeved on the outer ring of the guide shaft; the guide shaft passes through the guide block from the lower side of the valve body and is connected to the gland, so that the gland and the inner special-shaped ring form a seal.

[0007] Optionally, a plurality of mounting holes are evenly arranged on the valve body, and the mounting holes are used to mount the valve body on a preset counterpart, so that the outer O-ring forms a fitting seal with the preset counterpart;

[0008] Optionally, the number of the mounting holes is evenly distributed and is located at the outer edge of the valve body;

[0009] Optionally, the inner side of the guide shaft is provided with a thread, and the lower side of the gland has a protruding screw thread; the guide shaft is connected to the gland through the thread and the screw thread;

[0010] Optionally, a guide block installation position is provided in the middle of the valve body, and the guide block is fixedly installed at the guide block installation position by screws;

[0011] Optionally, the inner special-shaped ring is circular or of an irregular geometric shape;

[0012] Optionally, the size of the valve body is consistent with the required size of a preset large-scale energy storage cabinet.

[0013] A quick pressure relief valve for a large-scale energy storage cabinet provided by the present utility model forms a seal between its inner special-shaped ring and the gland through the compression of a spring. At the same time, the size of the valve body can be customized according to the required size of the large-scale energy storage cabinet, so as to achieve the purpose of increasing the pressure relief area as much as possible. During use, this structure can quickly reduce the internal pressure in the energy storage cabinet, exhaust and relieve pressure in a timely manner, and reduce the risk of explosion. Description of the Drawings

[0014] Figure 1 is an exploded view of the quick pressure relief valve for a large-scale energy storage cabinet in an embodiment of the present utility model;

[0015] Figure 2 is a bottom view of the quick pressure relief valve for a large-scale energy storage cabinet in an embodiment of the present utility model;

[0016] Figure 3 is a front view of the quick pressure relief valve for a large-scale energy storage cabinet in an embodiment of the present utility model;

[0017] Figure 4 is a side view of the quick pressure relief valve for a large-scale energy storage cabinet in an embodiment of the present utility model;

[0018] Figure 5 is a side sectional view of the quick pressure relief valve for a large-scale energy storage cabinet in an embodiment of the present utility model;

[0019] Figure 6 is a schematic diagram of exhaust and pressure relief of the quick pressure relief valve for a large-scale energy storage cabinet in an embodiment of the present utility model;

[0020] The reference signs in the accompanying drawings of the specification are as follows:

[0021] 1. gland; 2. inner special-shaped ring; 3. valve body; 4. guide block; 5. outer O-ring; 6. spring; 7. guide shaft; 8. screw; 9. mounting hole. Detailed Embodiment

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] Provide an explosion-proof valve with a function of preventing sediment and foreign objects, such as Figures 1 to 6As shown in the figure, it includes a valve body 3, a gland 1, an inner special-shaped ring 2, an outer O-ring 5, a guide block 4, a spring 6, and a guide shaft 7.

[0024] Among them, the size of the valve body is consistent with the required size of the preset large energy storage cabinet to meet the pressure relief requirements of the large energy storage cabinet. For example, the diameter of the valve body is 140 mm and the radius is 70 mm.

[0025] Both the upper and lower sides of the valve body have grooves; the inner special-shaped ring is arranged in the upper groove of the valve body, and the outer O-ring is arranged in the lower groove of the valve body. The shapes and sizes of the grooves are respectively adapted to the inner special-shaped ring and the outer O-ring. Both the inner special-shaped ring and the outer O-ring play a sealing role. The inner special-shaped ring can specifically be circular or an irregular geometric shape.

[0026] The guide block is arranged in the middle of the valve body for the guide shaft to pass through and serves to connect the gland, the valve body, the spring, and the guide shaft. Specifically, a guide block installation position is provided in the middle of the valve body, and the guide block is fixedly installed at the guide block installation position through a screw 8.

[0027] The spring is sleeved on the outer ring of the guide shaft to form a squeezing effect after the guide shaft and the gland are connected. The guide shaft passes through the guide block from the lower side of the valve body and is then connected to the gland, and the gland and the inner special-shaped ring form a seal.

[0028] The connection method between the guide block and the gland can be various. For example, in a simple implementation method, a thread is provided on the inner side of the guide shaft, and a protruding thread is provided on the lower side of the gland; through the thread and the thread, the guide shaft is connected to the gland. This connection method is simple and easy to implement.

[0029] Furthermore, a plurality of mounting holes are uniformly arranged on the valve body. The mounting holes are used to mount the valve body on a preset counterpart and make the outer O-ring form a fitting seal with the preset counterpart. Preferably, the mounting holes are three and are evenly distributed at the outer edge of the valve body. The stable three-hole mounting can make the outer O-ring evenly fit the preset counterpart to solve the problem of air leakage caused by the middle depression and small sealing compression amount.

[0030] The pressure relief process of the quick pressure relief valve for large energy storage cabinets during use is as Figure 6 shown. The internal air pressure enters from the air hole of the valve body, squeezes open the gland, and then discharges. Since the size of the valve body is large enough, the pressure relief area is also large, which can meet the quick pressure relief requirements of the large energy storage cabinet.

[0031] The above is the elaboration of the rapid pressure relief valve for large energy storage cabinets of the present utility model, which is used to help understand the present utility model; however, the implementation mode of the present utility model is not limited by the above embodiments. Any changes, modifications, substitutions, combinations, and simplifications made without departing from the principle of the present utility model shall be equivalent replacement methods and are all included in the protection scope of the present utility model.

Claims

1. A rapid pressure relief valve for a large energy storage cabinet, characterized in that, It includes a valve body, a gland, an inner special-shaped ring, an outer O-ring, a guide block, a spring and a guide shaft; Among them, the inner special-shaped ring is arranged in the upper groove of the valve body, and the outer O-ring is arranged in the lower groove of the valve body; The guide block is arranged in the middle of the valve body; the spring is sleeved on the outer ring of the guide shaft; the guide shaft passes through the guide block from the lower side of the valve body and then is connected to the gland, and makes the gland form a seal with the inner special-shaped ring.

2. The quick pressure relief valve for a large energy storage cabinet according to claim 1, wherein A plurality of mounting holes are uniformly arranged on the valve body, and the mounting holes are used to mount the valve body on a preset counterpart, and make the outer O-ring form a fitting seal with the preset counterpart.

3. The quick pressure relief valve for large energy storage cabinets according to claim 2, characterized in that, The mounting holes are three and are evenly distributed, and are located at the outer edge of the valve body.

4. The quick pressure relief valve for a large energy storage cabinet according to claim 1, wherein, Threads are provided on the inner side of the guide shaft, and protruding threads are provided on the lower side of the gland; through the threads and the threads, the guide shaft is connected to the gland.

5. The quick pressure relief valve for large energy storage cabinets according to claim 1, characterized in that, A guide block mounting position is arranged in the middle of the valve body, and the guide block is fixedly mounted at the guide block mounting position by screws.

6. The quick pressure relief valve for a large energy storage cabinet according to claim 1, characterized in that, The inner special-shaped ring is circular or has an irregular geometric shape.

7. The quick pressure relief valve for large energy storage cabinets according to any one of claims 1 to 6, characterized in that, The size of the valve body is consistent with the required size of a preset large energy storage cabinet.

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