An inflatable cabinet for offshore wind power

Abstract

The present invention discloses an inflatable cabinet for offshore wind power, which relates to the technical field of inflatable cabinets and includes an inflatable cabinet body, wherein a plurality of partitions are arranged at intervals inside the inflatable cabinet body, and an integrated switch, a dynamic sealing assembly and an operating structure are sequentially arranged between each two adjacent partitions, wherein the integrated switch is connected to the operating structure through the dynamic sealing assembly, and one side of the integrated switch is also connected to a wiring pipe sleeve that passes through to the outside of the inflatable cabinet body, and a first pressure relief chamber and a second pressure relief chamber are also provided above the interior of the inflatable cabinet body, and a cooling pipe is provided at the edge of the partition. The present invention is mainly used in offshore wind power. Since there are strong winds at sea, it can use the strong winds at sea to circulate heat inside the inflatable cabinet, effectively improving the heat exchange efficiency inside and outside the inflatable cabinet; since the air at sea is humid, it can reduce the intrusion of humid air into the inflatable cabinet during the pressure relief process through double pressure relief, thereby extending the service life of the inflatable cabinet.

Description

Technical Field

[0001] The invention relates to the technical field of inflatable cabinets, specifically an inflatable cabinet for offshore wind power. Background Art

[0002] With the development of urban power grids and power distribution, the cost-effectiveness of inflatable cabinets is destined to make them increasingly popular. As a new generation of switchgear, inflatable cabinets feature compact structure, flexible operation, and reliable interlocking. They provide satisfactory technical solutions for various applications (especially those in harsh environments) and different user requirements.

[0003] Since offshore wind power applications are affected by strong winds, humidity and other environmental factors, existing inflatable cabinets are not suitable for this scenario. Since the inflatable cabinet is a sealed integrated machine, strong winds cannot blow into the cabinet and cannot dissipate the heat inside the cabinet. However, when the inflatable cabinet is depressurized, humid air can easily enter the cabinet from the pressure relief port, causing corrosion of the cabinet structure and shortening the service life of the inflatable cabinet. Summary of the Invention

[0004] The purpose of the invention is to solve the problems existing in the above-mentioned background technology and to propose an inflatable cabinet for offshore wind power.

[0005] To achieve the above objectives, the invention provides the following technical solutions:

[0006] An inflatable cabinet for offshore wind power generation, comprising an inflatable cabinet body, wherein a plurality of partitions are arranged at intervals within the inflatable cabinet body, and an integrated switch, a dynamic sealing assembly, and an operating structure are sequentially arranged between each two adjacent partitions, wherein the integrated switch is connected to the operating structure via the dynamic sealing assembly, and a wiring sleeve that extends to the outside of the inflatable cabinet body is also connected to one side of the integrated switch, and a first pressure relief chamber and a second pressure relief chamber are also provided on the upper part of the inflatable cabinet body;

[0007] The partition is provided with a plurality of heat dissipation holes, and a cooling pipe is provided at the edge of the partition. One section of the cooling pipe is located outside the main body of the inflatable cabinet, and a plurality of evenly distributed couplings are installed through this end. The coupling is sealed and assembled with the cooling pipe through a bearing. One end of the coupling is connected to the fan blade located outside the cooling pipe, and the other end of the coupling is connected to the blade located inside the cooling pipe. The cooling pipe is also connected to the injection end located outside the main body of the inflatable cabinet;

[0008] A reference plate is provided between the first pressure relief chamber and the second pressure relief chamber, and a vertically arranged elastic guide shaft is mounted on the reference plate. A guide shaft limit head located in the first pressure relief chamber is fixed to the end of the elastic guide shaft, and a first spring is nested on the elastic guide shaft. A first valve core that is horizontally arranged and located in the second pressure relief chamber is fixed to the end of the elastic guide shaft away from the guide shaft limit head. A plurality of vertically arranged and evenly distributed pressure relief pipes are also fixed to the edge of the first valve core, and a plurality of evenly distributed first pressure relief holes are provided on the pressure relief pipe, and the pressure relief pipe is always nested on the first guide shaft fixed in the first pressure relief chamber;

[0009] Second pressure relief holes are respectively opened on both sides of the upper part of the second pressure relief chamber, and second guide shafts symmetrical to each other are fixed at the second pressure relief holes. A second valve core is nested on the second guide shaft, and a guide shaft limit head is fixed on the end of the second guide shaft, and a second spring is nested on the second guide shaft.

[0010] By adopting the above scheme, the main body of the inflatable cabinet is mainly used in offshore wind power; wherein, the partition is used to support the integrated switch, dynamic sealing assembly and operating structure, the integrated switch, dynamic sealing assembly, operating structure and wiring pipe sleeve together constitute the inflatable cabinet equipment, the first pressure relief chamber and the second pressure relief chamber are used for pressure relief in the inflatable cabinet main body, the heat dissipation holes are used to assist the circulation of heat, the cooling pipe is used for circulation and cooling inside the inflatable cabinet main body, the coupling is used to assist the connection between the fan blades and the blades, the bearing is used to reduce the friction of the coupling, the fan blades serve as the driving source, the blades are used to promote the flow of coolant, the injection end is used for injecting or discharging coolant, and the reference plate serves as the pressure relief of the first valve core. Reference, the elastic guide shaft is used to assist the guiding movement of the first valve core, the guide shaft limit head is used to assist the limiting of the first spring, the first spring is used to push the first valve core, the first valve core is used to drive the movement of the pressure relief pipe, the pressure relief pipe is used to assist the pressure relief in the gas filling cabinet body, the first pressure relief hole is used for the circulation of high-pressure gas in the gas filling cabinet body, the first guide shaft is used to assist the guiding movement of the pressure relief pipe, the second pressure relief hole is used for the circulation of high-pressure gas in the second pressure relief cavity, the second guide shaft is used to assist the guiding movement of the second valve core, the second valve core is used for sealing the second pressure relief hole, the guide shaft limit head is used to assist the limiting of the second spring, and the second spring is used to assist the pushing of the second valve core.

[0011] Preferably, the fan blades can rotate under the influence of strong winds at sea, and under the action of the coupling, drive the blades to rotate synchronously, which can promote the circulation of coolant in the cooling pipe.

[0012] By adopting the above solution, although the strong wind at sea cannot blow into the interior of the inflatable cabinet body to cool it down, it can drive the fan blades to rotate. After the fan blades rotate, the coupling drives the blades to rotate synchronously, which can promote the circulation of coolant in the cooling pipe and take away the heat in the cabinet body through the coolant.

[0013] Preferably, the upper and lower surfaces of one section of the cooling pipe located outside the main body of the inflatable cabinet are both wavy.

[0014] By adopting the above solution, the contact area between the wavy surface and the outside world is larger, and when the heated coolant flows through the cooling pipe section located outside the inflatable cabinet body, the coolant can be quickly cooled down, thereby circulating.

[0015] Preferably, a coolant injection port and a coolant discharge port are respectively provided above and below the injection end.

[0016] By adopting the above solution, it is convenient to fill and discharge the coolant in the cooling pipe at a later stage.

[0017] Preferably, when the interior of the first pressure relief chamber is at standard atmospheric pressure, the first valve core can abut against the reference plate under the elastic action of the first spring, and at this time all the first pressure relief holes are located in the first pressure relief chamber.

[0018] By adopting the above solution, it is ensured that the outside world is isolated and moist air from the outside is prevented from entering the interior of the inflatable cabinet body.

[0019] Preferably, when the pressure inside the first pressure relief chamber is higher than the standard atmospheric pressure, the air pressure pushes the guide shaft limit head, and the first spring is compressed. At this time, the first pressure relief hole can enter the second pressure relief chamber.

[0020] By adopting the above solution, the electrical components inside the inflatable cabinet body generate heat when working, and the air inside the cabinet expands due to the heat, which easily generates high-pressure hot air, which will be discharged into the second pressure relief chamber through the first pressure relief hole.

[0021] Preferably, when the interior of the second pressure relief chamber is at standard atmospheric pressure, the second valve core can completely block the second pressure relief hole under the elastic action of the second spring.

[0022] By adopting the above solution, it is ensured that the outside world is isolated and moist air from the outside is prevented from entering the second pressure relief chamber.

[0023] Preferably, when the pressure inside the second pressure relief chamber is higher than the standard atmospheric pressure, the air pressure pushes the second valve core, and the second spring is compressed. At this time, the air pressure in the second pressure relief chamber is discharged from the second pressure relief hole.

[0024] By adopting the above scheme, after the high-pressure hot gas in the inflatable cabinet main body enters the second pressure relief chamber, the air pressure in the second pressure relief chamber gradually increases until the air pressure in the second pressure relief chamber is balanced with the first pressure relief chamber and the air pressure inside the inflatable cabinet main body, and then it is discharged from the second pressure relief hole. Since the first pressure relief hole is not directly connected to the outside world, when the pressure relief is opened, the intrusion of external humid air into the inflatable cabinet main body can be reduced.

[0025] Compared with the prior art, the beneficial effects of the invention are:

[0026] The invention is an inflatable cabinet for offshore wind power, which is mainly used in offshore wind power. Since there are strong winds at sea, it can use the strong winds at sea to circulate heat inside the inflatable cabinet, effectively improving the heat exchange efficiency inside and outside the inflatable cabinet; since the air at sea is humid, it can reduce the intrusion of humid air into the inflatable cabinet during the pressure relief process through double pressure relief, thereby extending the service life of the inflatable cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the main structure of the invention in a normal state;

[0028] Figure 2 for Figure 1 Cross-section at AA in the middle;

[0029] Figure 3 for Figure 2 A partial enlarged view of point B in the middle;

[0030] Figure 4 It is a schematic diagram of the top view of the structure of the invention in a normal state;

[0031] Figure 5 It is a rear view structural diagram of the invention in a normal state;

[0032] Figure 6 This is a schematic diagram of the internal structure of the invention in a normal state;

[0033] Figure 7 for Figure 6 A partial enlarged view of point C in the middle;

[0034] Figure 8 for Figure 6 A partial enlarged view of point D in the middle;

[0035] Figure 9 for Figure 6 A partial enlarged view of point E in the middle;

[0036] Figure 10 This is a schematic diagram of the main structure of the invention in the pressure relief state;

[0037] Figure 11 It is a rear view structural diagram of the invention in the pressure relief state;

[0038] Figure 12 A schematic diagram of the internal structure of the invention in the pressure relief state;

[0039] Figure 13 for Figure 12 A partial enlarged view of point F in the middle;

[0040] Figure 14for Figure 12 A partial enlarged view of point G in the middle.

[0041] In the figure: 1-inflatable cabinet body; 2-partition; 3-integrated switch; 4-dynamic sealing assembly; 5-operating structure; 6-wiring pipe sleeve; 7-first pressure relief chamber; 8-second pressure relief chamber; 9-heat dissipation hole; 10-cooling pipe; 11-coupling; 12-bearing; 13-fan blade; 14-paddle blade; 15-injection end; 16-reference plate; 17-elastic guide shaft; 18-guide shaft limit head; 19-first spring; 20-first valve core; 21-pressure relief pipe; 22-first pressure relief hole; 23-first guide shaft; 24-second pressure relief hole; 25-second guide shaft; 26-guide shaft limit head; 27-second spring; 28-second valve core. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention. Specific embodiments

[0043] Please refer to Figure 1-14 , the invention provides a technical solution:

[0044] An inflatable cabinet for offshore wind power generation, comprising an inflatable cabinet body 1, wherein a plurality of partitions 2 are provided at intervals within the inflatable cabinet body 1, and an integrated switch 3, a dynamic seal assembly 4, and an operating structure 5 are sequentially provided between each two adjacent partitions 2, wherein the integrated switch 3 is connected to the operating structure 5 via the dynamic seal assembly 4, and a wiring pipe sleeve 6 that extends to the outside of the inflatable cabinet body 1 is also connected to one side of the integrated switch 3, and a first pressure relief chamber 7 and a second pressure relief chamber 8 are further provided on the upper part of the inflatable cabinet body 1;

[0045] The partition 2 is provided with a plurality of heat dissipation holes 9, and a cooling pipe 10 is provided at the edge of the partition 2. One section of the cooling pipe 10 is located outside the inflatable cabinet body 1, and a plurality of evenly distributed couplings 11 are installed through this end. The coupling 11 is sealed and assembled with the cooling pipe 10 through a bearing 12. One end of the coupling 11 is connected to the fan blade 13 located outside the cooling pipe 10, and the other end of the coupling 11 is connected to the blade 14 located inside the cooling pipe 10. The cooling pipe 10 is also connected to the injection end 15 located outside the inflatable cabinet body 1;

[0046] A reference plate 16 is provided between the first pressure relief chamber 7 and the second pressure relief chamber 8. A vertically arranged elastic guide shaft 17 is mounted on the reference plate 16. A guide shaft limit head 18 located in the first pressure relief chamber 7 is fixed to the end of the elastic guide shaft 17. A first spring 19 is nested on the elastic guide shaft 17. A first valve core 20 that is horizontally arranged and located in the second pressure relief chamber 7 is fixed to the end of the elastic guide shaft 17 away from the guide shaft limit head 18. A plurality of vertically arranged and evenly distributed pressure relief pipes 21 are also fixed to the edge of the first valve core 20. A plurality of evenly distributed first pressure relief holes 22 are provided on the pressure relief pipe 21. The pressure relief pipe 21 is always nested on the first guide shaft 23 fixed in the first pressure relief chamber 7.

[0047] Second pressure relief holes 24 are respectively opened on both sides of the upper part of the second pressure relief chamber 8, and second guide shafts 25 symmetrically fixed to the second pressure relief holes 24, a second valve core 28 is nested on the second guide shaft 25, a guide shaft limit head 26 is fixed on the end of the second guide shaft 25, and a second spring 27 is nested on the second guide shaft 25.

[0048] The inflatable cabinet body 1 is mainly used in offshore wind power; wherein, the partition 2 is used to support the integrated switch 3, the dynamic sealing assembly 4 and the operating structure 5, the integrated switch 3, the dynamic sealing assembly 4, the operating structure 5 and the wiring pipe sleeve 6 together constitute the inflatable cabinet equipment, the first pressure relief chamber 7 and the second pressure relief chamber 8 are used for pressure relief in the inflatable cabinet body 1, the heat dissipation hole 9 is used to assist the circulation of heat, the cooling pipe 10 is used for circulation and cooling inside the inflatable cabinet body 1, the coupling 11 is used to assist the connection between the fan blade 13 and the blade 14, the bearing 12 is used to reduce the friction of the coupling 11, the fan blade 13 is used as a driving source, the blade 14 is used to promote the flow of coolant, the injection end 15 is used for injecting or discharging coolant, the reference plate 16 is used as the pressure relief reference of the first valve core 20, the elastic guide shaft 1 7 is used to assist the guided movement of the first valve core 20, the guide shaft limit head 18 is used to assist the limiting of the first spring 19, the first spring 19 is used to push the first valve core 20, the first valve core 20 is used to drive the movement of the pressure relief pipe 21, the pressure relief pipe 21 is used to assist the pressure relief in the gas filling cabinet body 1, the first pressure relief hole 22 is used for the circulation of high-pressure gas in the gas filling cabinet body 1, the first guide shaft 23 is used to assist the guided movement of the pressure relief pipe 21, the second pressure relief hole 24 is used for the circulation of high-pressure gas in the second pressure relief chamber 8, the second guide shaft 25 is used to assist the guided movement of the second valve core 28, the second valve core 28 is used to block the second pressure relief hole 24, the guide shaft limit head 26 is used to assist the limiting of the second spring 27, and the second spring 27 is used to assist the pushing of the second valve core 28.

[0049] In the above description, the fan blades 13 can rotate under the influence of strong winds at sea, and under the action of the coupling 11 , drive the blades 14 to rotate synchronously, which can promote the circulation of the coolant in the cooling pipe 10 .

[0050] Although strong winds at sea cannot blow into the interior of the inflatable cabinet body 1 to cool it down, they can blow the fan blades 13 to rotate. After the fan blades 13 rotate, they drive the blades 14 to rotate synchronously through the coupling 12, which can promote the circulation of the coolant in the cooling pipe 10 and take away the heat in the cabinet body through the coolant.

[0051] In the above description, the upper and lower surfaces of one section of the cooling pipe 10 located outside the inflatable cabinet body 1 are both wavy.

[0052] The wavy surface has a larger contact area with the outside world. When the heated coolant flows through the cooling pipe 10 located outside the inflatable cabinet body 1, the coolant can be quickly cooled down and circulated.

[0053] In the above description, a coolant injection port and a coolant discharge port are respectively provided above and below the injection end 15 .

[0054] This facilitates the filling and discharge of the coolant in the cooling pipe 10 at a later stage.

[0055] In the above description, when the interior of the first pressure relief chamber 7 is at standard atmospheric pressure, the first valve core 20 can abut against the reference plate 16 under the elastic action of the first spring 19 , and at this time all the first pressure relief holes 22 are located in the first pressure relief chamber 7 .

[0056] Ensure isolation from the outside world to prevent moist air from entering the interior of the inflatable cabinet body 1.

[0057] In the above description, when the pressure inside the first pressure relief chamber 7 is higher than the standard atmospheric pressure, the air pressure pushes the guide shaft limit head 18 , and the first spring 19 is compressed. At this time, the first pressure relief hole 22 can enter the second pressure relief chamber 8 .

[0058] When the electrical components inside the inflatable cabinet body 1 are working, they generate heat, and the air inside the cabinet expands due to the heat, which easily generates high-pressure hot gas, which will be discharged into the second pressure relief chamber 8 through the first pressure relief hole 22.

[0059] In the above description, when the interior of the second pressure relief chamber 8 is at standard atmospheric pressure, the second valve core 28 can completely block the second pressure relief hole 24 under the elastic action of the second spring 27 .

[0060] Ensure isolation from the outside world to prevent external humid air from entering the second pressure relief chamber 8.

[0061] In the above description, when the pressure inside the second pressure relief chamber 8 is higher than the standard atmospheric pressure, the air pressure pushes the second valve core 28 , and the second spring 27 is compressed. At this time, the air pressure in the second pressure relief chamber 8 is discharged from the second pressure relief hole 24 .

[0062] After the high-pressure hot gas in the inflatable cabinet main body 1 enters the second pressure relief chamber 8, the air pressure in the second pressure relief chamber 8 gradually increases until the air pressure in the second pressure relief chamber 8 is balanced with the first pressure relief chamber 7 and the internal air pressure of the inflatable cabinet main body 1, and then it is discharged from the second pressure relief hole 24. Since the first pressure relief hole 22 is not directly connected to the outside world, when the pressure relief is opened, it can reduce the intrusion of external humid air into the inflatable cabinet main body 1.

[0063] Working principle of the invention:

[0064] The integrated switch 3, dynamic sealing assembly 4, operating structure 5 and wiring pipe sleeve 6 in the inflatable cabinet body 1 will generate heat when working. Although the strong wind at sea cannot blow to the interior of the inflatable cabinet body 1 to cool it down, the fan blades 13 can be blown to rotate. After the fan blades 13 rotate, the coupling 12 drives the blades 14 to rotate synchronously, which can promote the circulation of the coolant in the cooling pipe 10 and take away the heat in the cabinet body through the coolant. The wavy surface of the cooling pipe 10 has a larger contact area with the outside world. When the heated coolant flows through the cooling pipe 10 section located outside the inflatable cabinet body 1, the coolant can be quickly cooled down and circulated. If the coolant cannot cool down the inside of the gas cabinet body 1 in time, the air inside the cabinet will expand due to the heat, and high-pressure hot air will easily be generated, which will be discharged into the second pressure relief chamber 8 through the first pressure relief hole 22. After the high-pressure hot air in the gas cabinet body 1 enters the second pressure relief chamber 8, the air pressure in the second pressure relief chamber 8 gradually increases until the air pressure in the second pressure relief chamber 8 is balanced with the air pressure in the first pressure relief chamber 7 and the inside of the gas cabinet body 1, and then it is discharged through the second pressure relief hole 24. Since the first pressure relief hole 22 is not directly connected to the outside world, when the pressure relief is opened, it can reduce the intrusion of external humid air into the gas cabinet body 1.

[0065] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations that come within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An inflatable cabinet for offshore wind power, characterized by: The invention comprises an inflatable cabinet body (1), wherein a plurality of partitions (2) are arranged at intervals inside the inflatable cabinet body (1), and an integrated switch (3), a dynamic sealing component (4) and an operating structure (5) are sequentially arranged between each two adjacent partitions (2), wherein the integrated switch (3) is connected to the operating structure (5) through the dynamic sealing component (4), and one side of the integrated switch (3) is also connected to a wiring pipe sleeve (6) that passes through the outside of the inflatable cabinet body (1), and a first pressure relief chamber (7) and a second pressure relief chamber (8) are also arranged above the interior of the inflatable cabinet body (1); The partition (2) is provided with a plurality of heat dissipation holes (9) therethrough, and a cooling pipe (10) is provided at the edge of the partition (2). One section of the cooling pipe (10) is located outside the main body (1) of the gas cabinet, and a plurality of evenly distributed couplings (11) are installed through the section. The coupling (11) is sealed and assembled with the cooling pipe (10) through a bearing (12). One end of the coupling (11) is connected to a fan blade (13) located outside the cooling pipe (10), and the other end of the coupling (11) is connected to a blade (14) located inside the cooling pipe (10). The cooling pipe (10) is also connected to an injection end (15) located outside the main body (1) of the gas cabinet. A reference plate (16) is provided between the first pressure relief chamber (7) and the second pressure relief chamber (8), and a vertically arranged elastic guide shaft (17) is mounted on the reference plate (16), and a guide shaft limit head (18) located in the first pressure relief chamber (7) is fixed to the end of the elastic guide shaft (17), and a first spring (19) is nested on the elastic guide shaft (17), and a first valve core (20) which is horizontally arranged and located in the second pressure relief chamber (8) is fixed at the end of the elastic guide shaft (17) away from the guide shaft limit head (18), and a plurality of vertically arranged and evenly distributed pressure relief pipes (21) are fixed on the edge of the first valve core (20), and a plurality of evenly distributed first pressure relief holes (22) are provided on the pressure relief pipe (21), and the pressure relief pipe (21) is always nested on the first guide shaft (23) fixed in the first pressure relief chamber (7); Second pressure relief holes (24) are respectively provided on both sides of the upper portion of the second pressure relief chamber (8), and mutually symmetrical second guide shafts (25) are fixed to the second pressure relief holes (24). A second valve core (28) is nested on the second guide shaft (25), and a guide shaft limit head (26) is fixed to the end of the second guide shaft (25), and a second spring (27) is nested on the second guide shaft (25).

2. The offshore wind power inflatable cabinet according to claim 1, characterized in that: The fan blades (13) can rotate under the influence of strong winds at sea, and under the action of the coupling (11), drive the blades (14) to rotate synchronously, thereby promoting the circulation of the coolant in the cooling pipe (10).

3. The offshore wind power inflatable cabinet according to claim 1, characterized in that: The upper and lower surfaces of one section of the cooling pipe (10) located outside the inflatable cabinet body (1) are both wavy.

4. The offshore wind power inflatable cabinet according to claim 1, characterized in that: A coolant injection port and a coolant discharge port are respectively provided above and below the injection end (15).

5. The offshore wind power inflatable cabinet according to claim 1, characterized in that: When the interior of the first pressure relief chamber (7) is at standard atmospheric pressure, the first valve core (20) can abut against the reference plate (16) under the elastic action of the first spring (19), and at this time all the first pressure relief holes (22) are located in the first pressure relief chamber (7).

6. The offshore wind power inflatable cabinet according to claim 1, characterized in that: When the pressure inside the first pressure relief chamber (7) is higher than the standard atmospheric pressure, the air pressure pushes the guide shaft limit head (18), and the first spring (19) is compressed. At this time, the first pressure relief hole (22) can enter the second pressure relief chamber (8).

7. The offshore wind power inflatable cabinet according to claim 1, characterized in that: When the interior of the second pressure relief chamber (8) is at standard atmospheric pressure, the second valve core (28) can completely block the second pressure relief hole (24) under the elastic action of the second spring (27).

8. The offshore wind power inflatable cabinet according to claim 1, characterized in that: When the pressure inside the second pressure relief chamber (8) is higher than the standard atmospheric pressure, the air pressure pushes the second valve core (28), and the second spring (27) is compressed.

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