Explosion venting mechanism of electrochemical energy storage power station prefabricated cabin

Abstract

The utility model relates to an explosion venting mechanism of an electrochemical energy storage power station prefabricated cabin, and belongs to the technical field of energy storage power stations, the explosion venting mechanism comprises a prefabricated cabin, a fixing plate and a sealing door structure located at an explosion venting opening of the prefabricated cabin, and the sealing door structure comprises a mounting frame and a cover plate buckled to the mounting frame; the fixing plate is further provided with a plunger structure used for being connected with the cover plate, and the plunger structure comprises a plunger rod located on the cover plate and a limiting piece located between the plunger rod and the cover plate. According to the explosion venting mechanism of the electrochemical energy storage power station prefabricated cabin, the cover plate used for sealing the explosion venting opening of the prefabricated cabin and the mounting frame are limited through the C-shaped clamp and the bending rod which are buckled with each other, so that the sealing effect of the cover plate in a normal state is good, the cover plate is blocked by the fixing plate and the plunger rod, and the sealing effect of the cover plate is good as well; the C-shaped clamp and the bending rod can be separated only under the internal pressure state, namely, the cover plate can be separated for pressure relief, and the sealing and stabilizing effect of the cover plate is better.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage power stations, and specifically to an explosion relief mechanism for a prefabricated cabin of an electrochemical energy storage power station. Background Art

[0002] An electrochemical energy storage power station is a facility that uses electrochemical reactions to convert electrical energy into chemical energy for storage, and then converts chemical energy into electrical energy for release when needed. This type of power station usually includes components such as battery packs, electrolyzers, electrolytes, electrodes, etc. Common electrochemical energy storage power stations include lithium batteries and lead-acid batteries used in daily life.

[0003] Referring to the utility model patent with announcement number CN219979750U, an electrochemical energy storage prefabricated cabin and its explosion relief device, the middle part of the frame has an explosion relief window, the door panel is located on one side of the frame and covers the explosion relief window, one end of the door panel can be rotatably mounted on the frame, and a reset elastic member is provided at the connection between the door panel and the frame; the shutter is located on the side of the frame away from the door panel and arranged corresponding to the explosion relief window. Through the above optimized design of the explosion relief device for the electrochemical energy storage prefabricated cabin, the gas channel is opened / closed with the pressure change through the cooperation of the door panel and the explosion relief window to achieve rapid gas discharge, thereby quickly reducing the internal pressure of the prefabricated cabin, preventing the explosion of combustible gas in the prefabricated cabin, and resetting after the pressure drops, it can be used repeatedly with low maintenance cost.

[0004] After searching, the above patent is the prior art closest to the present application. Although it estimates the explosion relief range and uses the closing method of the door panel to relieve pressure, the closure of the door panel is sealed by its own weight. Since there is no limit on the closure of the door panel relative to the frame, the prefabricated cabin can directly complete gas exchange through the door panel structure, and the airtightness is not strong. In addition, there is a possibility of orientation adjustment in the electrochemical energy storage power station during use. The reset method of only adding a torsion spring by its own weight is difficult to adapt to practical applications. Therefore, an explosion relief mechanism for a prefabricated cabin of an electrochemical energy storage power station is proposed to solve the above-mentioned problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present application provides an explosion relief mechanism for a prefabricated cabin of an electrochemical energy storage power station, which has the advantages of good self-sealing effect and the ability to release the self-sealing effect for use under pressure.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an explosion relief mechanism of a prefabricated cabin of an electrochemical energy storage power station, comprising a prefabricated cabin, a fixing plate and a sealing door structure located at the explosion relief port of the prefabricated cabin, the sealing door structure comprising a mounting frame and a cover plate buckled on the mounting frame, and a plunger structure for connecting the cover plate is also provided on the fixing plate;

[0007] The plunger structure comprises a plunger rod located on the cover plate and a stopper located between the plunger rod and the cover plate;

[0008] The limiting member includes a C-shaped card located on the fixed plate and a bending rod fixedly installed under the cover plate, the C-shaped card is plugged into the right-angle end of the bending rod, and a push rod is rotatably installed between the C-shaped card and the plunger rod.

[0009] Furthermore, the inner side of the installation frame extends outward in a frame shape, the explosion relief opening provided on the prefabricated cabin corresponds to the frame-shaped structure extending from the installation frame, and a dust screen is fixedly installed in the explosion relief opening of the prefabricated cabin.

[0010] Furthermore, a fixing plate is fixedly mounted on the inner wall of the mounting frame, and a return spring is installed between the fixing plate and the cover plate.

[0011] Furthermore, a guide rod is fixedly mounted on the lower end of the cover plate, and the guide rod passes through and is slidably connected to the fixed plate.

[0012] Furthermore, a sealing ring is fixedly installed on the outside of the plunger rod, and the sealing ring is tightly slidably connected to the fixing plate.

[0013] Furthermore, a telescopic rod and a push spring are connected between the cover plate and the plunger rod.

[0014] Furthermore, a limit frame is fixedly mounted on the lower end of the plunger rod, and the limit frame is a disc-shaped frame and extends toward the outside of the plunger rod.

[0015] Furthermore, a guide rail is fixedly installed above the fixed plate, the C-shaped card is slidably connected to the guide rail, and a fillet is extended on the inner wall of the guide rail, and the fillet is slidably connected to the C-shaped card.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] The explosion relief mechanism of the prefabricated cabin of the electrochemical energy storage power station is restricted by a cover plate for closing the explosion relief port of the prefabricated cabin and a mounting frame through mutually interlocking C-shaped clips and bending rods, so that the cover plate has a good sealing effect under normal conditions, and is blocked by a fixed plate and a plunger rod, so that the sealing effect is also good. The C-shaped clip and the bending rod can be separated only when subjected to internal pressure, that is, the cover plate can be separated and depressurized, so that the sealing stability effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of this application;

[0019] Figure 2This is a structural stereogram of the limit frame of this application;

[0020] Figure 3 This is a structural side view of the C-shaped card connection guide rail of this application.

[0021] In the figure: 1. prefabricated cabin; 2. installation frame; 3. dust screen; 4. cover plate; 5. fixing plate; 6. plunger rod; 7. telescopic rod; 8. push spring; 9. sealing ring; 10. guide rod; 11. return spring; 12. bending rod; 13. guide rail; 14. C-shaped card; 15. push rod; 16. limit frame; 17. embedding strip. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] See also Figure 1-3 In this embodiment, an explosion relief mechanism of a prefabricated cabin of an electrochemical energy storage power station includes a prefabricated cabin 1, a fixing plate 5, and a sealing door structure located at the explosion relief port of the prefabricated cabin 1, wherein the sealing door structure includes an installation frame 2 and a cover plate 4 buckled on the installation frame 2, wherein the inner side of the installation frame 2 extends toward the outside in a frame shape, and the explosion relief port opened on the prefabricated cabin 1 corresponds to the frame-shaped structure extending on the installation frame 2.

[0024] This design allows the installation frame 2 to be easily pre-positioned with the explosion relief port on the prefabricated cabin 1, providing convenience for the subsequent installation and fixation of the prefabricated cabin 2. The installation frame 2 and the prefabricated cabin 1 are fixed with bolts.

[0025] In this embodiment, a dust-proof net 3 is fixedly installed in the explosion-proof opening of the prefabricated cabin 1 to reduce the entry of external dust during pressure relief.

[0026] It should be noted that a fixing plate 5 is fixedly mounted on the inner wall of the mounting frame 2 , and a return spring 11 is installed between the fixing plate 5 and the cover plate 4 .

[0027] In a specific embodiment, one end of the reset spring 11 is fixedly connected to the cover plate 4, and the other end is fixedly connected to the fixed plate 5. By pulling the cover plate 4 toward the fixed plate 5 by the reset spring 11, the cover plate 4 can be snapped and pulled back to the mounting frame 2.

[0028] The lower end of the cover plate 4 in this embodiment is also fixedly mounted with a guide rod 10, which passes through and is slidably connected to the fixed plate 5. At this time, the opening and pressure relief angle of the cover plate 4 relative to the installation frame 2 is limited, so that the installation frame 2 will not be displaced after reset.

[0029] In this embodiment, a plunger structure for connecting the cover plate 4 is further provided on the fixing plate 5 , and the plunger structure includes a plunger rod 6 located on the cover plate 4 and a limiting member located between the plunger rod 6 and the cover plate 4 .

[0030] The present application forms a sealing layer by cooperating the plunger rod 6 with the fixed plate 5, which can ensure effective sealing in the prefabricated cabin 1, and through the limiter between the plunger rod 6 and the cover plate 4, it can limit the natural opening of the cover plate 4 under normal conditions, further improving the sealing effect.

[0031] It should be noted that a sealing ring 9 is fixedly installed on the outside of the plunger rod 6, and the sealing ring 9 is tightly and slidably connected to the fixed plate 5. It is squeezed by the high-temperature gas in the prefabricated cabin 1, so that the plunger rod 6 can slide relative to the fixed plate 5 after being compressed.

[0032] In order to connect the plunger rod 6 and the cover plate 4 , a telescopic rod 7 and a push spring 8 are connected between the cover plate 4 and the plunger rod 6 in this embodiment. One end of the telescopic rod 7 is fixedly connected to the cover plate 4 , and the other end is fixedly connected to the plunger rod 6 .

[0033] In a specific implementation, the plunger rod 6 is pushed by the push spring 8 to move toward the side away from the cover plate 4 , which helps the plunger rod 6 to be relocated relative to the fixing plate 5 .

[0034] In this embodiment, a limit frame 16 is fixedly mounted on the lower end of the plunger rod 6 . The limit frame 16 is a disc-shaped frame and extends toward the outside of the plunger rod 6 . The outer diameter of the limit frame 16 is larger than the opening diameter of the fixing plate 5 .

[0035] Such a design ensures that when the plunger rod 6 is pushed by the air pressure in the prefabricated cabin 1, the limiting frame 16 can abut against the fixing plate 5 at the moment when the plunger rod 6 is separated from the fixing plate 5 to limit the separation of the plunger rod 6.

[0036] It should be noted that the limiting member includes a C-shaped card 14 located on the fixing plate 5 and a bending rod 12 fixedly installed below the cover plate 4 , and the C-shaped card 14 is plugged into the right-angle end of the bending rod 12 .

[0037] The mutual connection between the C-shaped clip 14 and the bending rod 12 can prevent the cover plate 4 from being directly opened under normal conditions.

[0038] A guide rail 13 is fixedly installed above the fixing plate 5 , and the C-shaped card 14 is slidably connected to the guide rail 13 , so that the activity stability of the C-shaped card 14 can be improved through the guide rail 13 .

[0039] In this embodiment, a fillet 17 extends from the inner wall of the guide rail 13 , and the fillet 17 is slidably connected to the C-shaped card 14 .

[0040] Such design makes it difficult for the C-shaped card 14 to escape from the guide rail 13 .

[0041] In this embodiment, a push rod 15 is rotatably installed between the C-shaped card 14 and the plunger rod 6. Through the connection of the push rod 15, when the plunger rod 6 moves, the C-shaped card 14 can be gradually pushed to slide relative to the guide rail 13, thereby releasing the relative connection between the C-shaped card 14 and the bending rod 12.

[0042] The working principle of the above embodiment is:

[0043] When overheating occurs in the prefabricated cabin 1 and gas is generated, the superheated gas pushes the plunger rod 6 at the explosion-proof opening of the closed prefabricated cabin 1 upward to slide relative to the fixed plate 5. During the sliding process of the plunger rod 6 relative to the fixed plate 5, the push rod 15 connected to the outside of the plunger rod 6 pushes the C-shaped card 14 located on the guide rail 13 to slide synchronously. The C-shaped card 14 slides away relative to the bending rod 12. At this time, the cover plate 4 is released from the restriction and can be disengaged from the installation frame 2 to release pressure. Subsequently, the plunger rod 6 is disengaged from the fixed plate 5 under the pressure. The plunger rod 6 is abutted against the fixed plate 5 through the limit frame 16 at the lower end to complete the restriction. At this time, the air pressure impacts the cover plate 4 upward, causing the cover plate 4 to be disengaged from the installation frame 2. At this time, the explosion-proof opening of the prefabricated cabin 1 is directly connected to the outside to complete the pressure relief.

[0044] In the normal state of the prefabricated cabin 1, the plunger rod 6 is pushed by the return spring 11 and the push spring 8 to move, and drive the push rod 15 to pull the C-shaped card 14. At this time, the C-shaped card 14 is buckled on the outside of the bending rod 12, so that the cover plate 4 cannot fall out of the installation frame 2, thereby improving the airtightness of the prefabricated cabin 1 in the normal state.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An explosion relief mechanism for a prefabricated cabin of an electrochemical energy storage power station, comprising a prefabricated cabin (1), a fixing plate (5) and a sealing door structure located at the explosion relief opening of the prefabricated cabin (1), characterized in that: The door sealing structure comprises a mounting frame (2) and a cover plate (4) buckled on the mounting frame (2), and a plunger structure for connecting the cover plate (4) is also provided on the fixing plate (5); The plunger structure comprises a plunger rod (6) located on the cover plate (4) and a stopper located between the plunger rod (6) and the cover plate (4); The limiting member comprises a C-shaped card (14) located on the fixing plate (5) and a bending rod (12) fixedly installed below the cover plate (4); the C-shaped card (14) is plugged into the right-angle end of the bending rod (12); and a push rod (15) is rotatably installed between the C-shaped card (14) and the plunger rod (6).

2. The explosion relief mechanism of the prefabricated cabin of the electrochemical energy storage power station according to claim 1 is characterized in that: The inner side of the installation frame (2) extends outwardly in a frame shape, the explosion relief opening provided on the prefabricated cabin (1) corresponds to the frame-shaped structure extending from the installation frame (2), and a dust screen (3) is also fixedly installed in the explosion relief opening of the prefabricated cabin (1).

3. The explosion relief mechanism of the prefabricated cabin of the electrochemical energy storage power station according to claim 1 is characterized in that: A fixing plate (5) is also fixedly mounted on the inner wall of the mounting frame (2), and a return spring (11) is mounted between the fixing plate (5) and the cover plate (4).

4. The explosion relief mechanism of the prefabricated cabin of the electrochemical energy storage power station according to claim 1 is characterized in that: A guide rod (10) is also fixedly mounted on the lower end of the cover plate (4), and the guide rod (10) penetrates through and is slidably connected to the fixing plate (5).

5. The explosion relief mechanism of the prefabricated cabin of the electrochemical energy storage power station according to claim 1 is characterized by: A sealing ring (9) is fixedly mounted on the outside of the plunger rod (6), and the sealing ring (9) is tightly slidably connected to the fixing plate (5).

6. The explosion relief mechanism of the prefabricated cabin of the electrochemical energy storage power station according to claim 1 is characterized by: A telescopic rod (7) and a push spring (8) are connected between the cover plate (4) and the plunger rod (6).

7. The explosion relief mechanism of the prefabricated cabin of the electrochemical energy storage power station according to claim 1 is characterized by: A limit frame (16) is also fixedly mounted on the lower end of the plunger rod (6); the limit frame (16) is a disc-shaped frame and extends toward the outside of the plunger rod (6).

8. The explosion relief mechanism of the prefabricated cabin of the electrochemical energy storage power station according to claim 1 is characterized by: A guide rail (13) is fixedly installed above the fixed plate (5), and the C-shaped card (14) is slidably connected to the guide rail (13). A fillet (17) extends from the inner wall of the guide rail (13), and the fillet (17) is slidably connected to the C-shaped card (14).

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