Ultrahigh-pressure quick-opening air valve and gas acting system

Abstract

The invention relates to valve equipment, in particular to an ultrahigh-pressure quick-opening air valve and a gas acting system.The ultrahigh-pressure quick-opening air valve comprises a valve body, a pressure container, a pilot piston, a main piston, a main valve rod, a first-stage pilot valve rod, a main valve and a valve push rod, an inner cavity of the valve body is divided into a first cavity and a second cavity through a partition plate, and the valve body is connected with the pressure container; the pressure container is provided with an outlet, the interior of the pressure container is used for releasing high-pressure gas, the main valve rod is connected to the first end of the valve body, and the pilot piston is suitable for moving front and back in the first cavity. The large-diameter part and part of the small-diameter part of the main piston are located in the second cavity, the other small-diameter part of the main piston sequentially extends into the second through hole and the first through hole, a second center hole is formed in the valve push rod and communicated with the first center hole, and the second center hole is communicated with the first center hole. The first-stage pilot valve rod is arranged in the first center hole. The device is small in size, high in integration level and capable of being quickly opened.

Description

Technical Field

[0001] The invention relates to a valve device, in particular to an ultra-high pressure fast-opening air valve and a gas working system. Background Art

[0002] In recent years, the application scenarios of gas power systems have become more and more numerous, but traditional gas power systems have problems such as low pressure and large volume. With the advancement of technology, the design and production of ultra-high pressure vessels can meet the requirements of the ultra-high pressure use environment of gas power systems, but as the pressure of the gas power system increases, the speed of the load out of the cylinder increases accordingly, and the movement time in the guide cylinder is shorter, so higher requirements are placed on the ultra-high pressure, large diameter, dynamic and static sealing, opening pressure accuracy and opening time of the air valve.

[0003] At present, the air valve used in the gas working system releases the driving force by driving the electromagnet movement through an external power supply, thereby releasing the high-pressure gas in the pilot chamber. This air valve is large in size and has a long valve opening time, which affects the release speed of the working medium in the pressure vessel of the gas working system, and ultimately affects the performance parameters such as the load's discharge speed, and cannot meet the requirements of the ultra-high pressure gas working system. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an ultra-high pressure quick-opening air valve and a gas working system which are small in size, highly integrated and can be opened quickly.

[0005] In order to solve the above technical problems, this application provides the following technical solutions:

[0006] The present invention discloses an ultra-high pressure quick-opening air valve, comprising a valve body, a pressure vessel, a pilot piston, a main piston, a main valve stem, a first-level pilot valve stem, a main valve, and a valve push rod.

[0007] The inner cavity of the valve body is divided into a first cavity and a second cavity by a partition, and a second through hole is provided on the partition. One end of the valve body is a first end, and the other end is a second end. The second end of the valve body is connected to the pressure vessel, and an outlet is provided at one end of the pressure vessel away from the valve body. The pressure vessel is used to release high-pressure gas.

[0008] The main valve stem is connected to the first end of the valve body, and the main valve stem extends into the first cavity.

[0009] The pilot piston is provided with a first through hole, the pilot piston is arranged in the first cavity, the pilot piston is suitable for moving forward and backward in the first cavity, a starting air cavity is formed between the pilot piston and the side wall of the first cavity close to the first end of the valve body, at least one through hole is provided on the side wall of the valve body, the through hole is connected with the second cavity, the through hole is closed when the pilot piston is in place, and the through hole is opened when the pilot piston moves to the right.

[0010] The outer wall of the main piston is in a step shape, and a first central hole extending in the length direction is provided on the main piston. The inner wall of the second cavity is in a step shape, and a spring seat is provided in the second cavity. The large diameter portion and part of the small diameter portion of the main piston are located in the second cavity, and the remaining small diameter portion of the main piston extends into the second through hole and the first through hole in sequence. The main piston is suitable for moving forward and backward relative to the valve body and the pilot piston. The small diameter portion of the main piston is sleeved with a first spring, and the first spring is clamped between the spring seat and the large diameter portion of the main piston. The large diameter portion of the main piston and the small diameter portion of the inner wall of the second cavity fit each other.

[0011] The valve push rod is provided with a second center hole extending in the axial direction, one end of the valve push rod is a pushing end, the pushing end is arranged in the second cavity and the end of the pushing end is close to the end of the main piston, the outer wall of the pushing end and the large diameter part of the inner wall of the second cavity are sealed with each other, the pushing end divides the second cavity into two parts, the part close to the pressure vessel is the main air cavity, and the part away from the pressure vessel is the pilot air cavity, the other part of the valve push rod passes through the valve body and enters the pressure vessel, the valve push rod is coaxially arranged with the main piston, and the second center hole is communicated with the first center hole,

[0012] The first-level pilot valve stem is arranged in the first center hole, and the first-level pilot valve stem is suitable for moving left and right relative to the first center hole. When the first-level pilot valve stem moves to the left to block the first center hole, the end of the main valve stem away from the pressure vessel touches an end of the main valve stem located in the valve body. When the first-level pilot valve stem moves to the right and leaves the end of the main valve stem located in the valve body, the first center hole is connected with the starting air cavity and the second center hole. In the natural state, the first-level pilot valve stem blocks the first center hole.

[0013] The main valve is connected to one end of the valve push rod located in the pressure vessel. The main valve is used to block the outlet or open the outlet. A through hole is provided on the main valve to connect the inner cavity of the pressure vessel with the second center hole.

[0014] Furthermore, it also includes an exciter, which is arranged in the pressure vessel. The pressure vessel contains a working medium, and the exciter is used to excite the working medium to generate high-pressure gas.

[0015] Further, the first center hole includes a large diameter portion and a small diameter portion, the large diameter portion is close to one end of the pressure vessel, the first-stage pilot valve stem includes a valve stem body and a blocking block arranged on one end of the valve stem body close to the pressure vessel, the blocking block and part of the valve stem body are located in the large diameter portion of the first center hole, and the rest of the valve stem body is located in the small diameter portion of the first center hole, and a second spring is sleeved on the valve stem body located in the large diameter portion of the first center hole, one end of the second spring abuts against the blocking block, and when the blocking block abuts against the side wall of the large diameter end of the first center hole, the end of the valve stem body away from the pressure vessel touches an end of the main valve stem located in the valve body.

[0016] Furthermore, it also includes a guide cylinder, which is threadedly connected to the end of the large diameter part of the first center hole, and a mounting groove is provided at a position close to the center of the pushing end of the valve push rod, and the guide cylinder is placed in the mounting groove. A gap is provided between the guide cylinder and the groove wall of the mounting groove, and a groove is provided on the outer wall of the guide cylinder to connect the second center hole with the pilot air cavity, and one end of the valve stem body close to the pressure vessel extends into the guide cylinder.

[0017] Furthermore, it also includes a secondary pilot valve stem, which corresponds to the through hole one by one. A valve stem hole is set on the partition plate, and the secondary pilot valve stem passes through the valve stem hole. One end of the secondary pilot valve stem abuts against the end of the pilot piston away from the first end of the valve body, and the other end extends into the second cavity to seal the through hole. In the natural state, the secondary pilot valve stem seals the through hole, and the through hole opens when the pilot piston pushes the secondary pilot valve stem.

[0018] Furthermore, one end of the secondary pilot valve stem is a mounting end and the other end is a blocking end, the mounting end is a radial boss, the blocking end is conical, a first groove is provided on a side surface of the pilot piston away from the first end of the valve body, the radial boss is arranged in the first groove, a spring groove is provided on the partition plate, a third spring is provided on the secondary pilot valve stem, and the third spring is arranged in the spring groove.

[0019] Furthermore, the main valve stem is threadedly connected to the first end portion of the valve body, and the length of the main valve stem extending into the first cavity is adjustable.

[0020] Furthermore, the valve body includes a first valve body assembly and a second valve body assembly, the first valve body assembly is connected to the second valve body assembly, the second valve body assembly is provided with a connecting end, and the pressure container is threadedly connected to the connecting end.

[0021] The present invention provides a gas working system including the above-mentioned ultra-high pressure quick-opening air valve, and also includes a guide cylinder, wherein the guide cylinder is connected to the outlet, the inner cavity of the guide cylinder is communicated with the inner cavity of the pressure vessel, the guide cylinder is used for placing a counterweight, and the high-pressure gas in the pressure vessel is used to do work on the counterweight.

[0022] Furthermore, it also includes a spray joint, which is connected to the outlet, and the guide cylinder is connected to the spray joint.

[0023] Compared with the prior art, the ultra-high pressure quick-opening air valve of the present invention has at least the following beneficial effects:

[0024] The present invention discloses an ultra-high pressure quick-opening air valve, which comprises a valve body, a pressure vessel, a pilot piston, a main piston, a main valve stem, a first-level pilot valve stem, a main valve and a valve push rod. When the pressure vessel reaches a set opening pressure, the first-level pilot valve stem triggers movement, and the high-pressure gas in the pressure vessel enters the starting air cavity, pushing the pilot piston to move rightward, and the pressure on the left side of the valve push rod decreases rapidly. Under the action of the pressure on the right side of the valve push rod, the main valve is instantly lifted from the valve seat of the pressure vessel, and the valve opens quickly, thereby realizing the function of accurately and quickly opening the valve under ultra-high pressure and large-caliber environments, and the valve has a small size and a high degree of integration, thereby providing technical support for the application and promotion of ultra-high pressure gas working systems.

[0025] The ultra-high pressure quick-opening air valve and the gas working system of the present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the ultra-high pressure quick-opening air valve of the present invention in a closed state;

[0027] Figure 2 It is a structural schematic diagram of the ultra-high pressure quick-opening air valve of the present invention in an open state;

[0028] Figure 3 This is a usage state diagram of the gas working system of the present invention. DETAILED DESCRIPTION

[0029] like Figure 1 , Figure 2 As shown, the present invention is an ultra-high pressure quick-opening air valve, comprising a valve body 01, a pressure vessel 02, a pilot piston 31, a main piston 32, a main valve stem 33, a first-stage pilot valve stem 34, a main valve 36, and a valve push rod 37.

[0030] The inner cavity of the valve body 01 is divided into a first cavity 11 and a second cavity 12 by a partition 10. A second through hole is provided on the partition 10. One end of the valve body 01 is the first end and the other end is the second end. The second end of the valve body 01 is connected to the pressure vessel 02. The second end of the valve body 01 and the pressure vessel 02 are sealed with each other. The pressure vessel 02 is used to release high-pressure gas. The inner cavity of the pressure vessel forms a container air cavity 21. An outlet is provided at one end of the pressure vessel 02 away from the valve body 01. When the outlet is opened, the valve is opened, and the high-pressure gas in the pressure vessel 02 is ejected.

[0031] The main valve stem 33 is connected to the first end of the valve body 01, and the main valve stem 33 extends into the first cavity 11.

[0032] A first through hole is provided on the pilot piston 31. The pilot piston 31 is provided in the first cavity 11. The pilot piston 31 is suitable for moving back and forth in the first cavity 11. A starting air chamber 13 is formed between the pilot piston 31 and the side wall of the first end of the first cavity 11 close to the valve body 01. At least one through hole 14 is provided on the side wall of the valve body 01. The through hole 14 is connected to the second cavity 12. In the natural state, the pilot piston 31 is in place, that is, the pilot piston 31 is close to the inner wall of the first end of the first cavity 11 close to the valve body 01, and the through hole 14 is closed. When the pilot piston 31 moves to the right, the through hole 14 is opened. Specifically, a groove is provided on the side wall of the pilot piston 31 close to the first end of the valve body 01. A starting air chamber 13 is formed between the groove and the inner wall of the first cavity 11. The pilot piston 31 and the side wall of the first cavity 11 are sealed to each other through multiple sealing rings.

[0033] The outer wall of the main piston 32 is stepped, and a first center hole extending in the length direction is provided on the main piston 32. The inner wall of the second cavity 12 is stepped, and a spring seat 121 is provided in the second cavity 12. The large diameter portion and part of the small diameter portion of the main piston 32 are located in the second cavity 12, and the remaining small diameter portion of the main piston 32 extends into the second through hole and the first through hole in sequence. The main piston 32 is suitable for moving forward and backward relative to the valve body 01 and the pilot piston 31. The small diameter portion of the main piston 32 is sleeved with a first spring 122, and the first spring 122 is clamped between the spring seat 121 and the large diameter portion. The large diameter portion of the main piston 32 and the small diameter portion of the inner wall of the second cavity 12 fit each other.

[0034] A second center hole 371 extending axially is provided on the valve push rod 37, one end of the valve push rod 37 is a pushing end, the pushing end is arranged in the second cavity 12 and the end of the pushing end is close to the end of the main piston 32, the outer wall of the pushing end and the large diameter part of the inner wall of the second cavity 12 are sealed with each other, the pushing end divides the second cavity 12 into two parts, the part close to the pressure vessel 02 is the main air cavity 123, and the part away from the pressure vessel 02 is the pilot air cavity 124, the other part of the valve push rod 37 passes through the valve body 01 and enters the pressure vessel 02, the valve push rod 37 is coaxially arranged with the main piston 32, the second center hole 371 is connected with the first center hole, the second center hole 371 forms a conducting air cavity, and in the natural state, the pilot air cavity 124, the main air cavity 123 and the container air cavity 21 are connected with each other through the second center hole 371.

[0035] The first-stage pilot valve stem 34 is arranged in the first center hole. The first-stage pilot valve stem 34 is suitable for moving left and right relative to the first center hole. When the first-stage pilot valve stem 34 moves to the left to block the first center hole, the end of the main valve stem 34 away from the pressure vessel 02 touches the end of the main valve stem 33 located in the valve body 01. When the first-stage pilot valve stem 34 moves to the right to leave the end of the main valve stem 33 located in the valve body 01, the first center hole is connected with the starting air cavity 13 and the second center hole 371. In the natural state, the first-stage pilot valve stem 34 blocks the first center hole.

[0036] The main valve 36 is connected to one end of the valve push rod 37 located in the pressure vessel 02. The main valve 36 is used to block the outlet or open the outlet. A through hole is provided on the main valve 36 to connect the inner cavity of the pressure vessel 02 with the second central hole 371. In the natural state and when the pressure vessel 02 is filled with high-pressure gas, the main valve 36 blocks and seals the outlet under the action of the internal and external pressure difference. Specifically, the main valve 36 and the pressure vessel 02 are both made of metal materials. The main valve 36 and the pressure vessel 02 are sealed by metal surface contact. As the pressure in the pressure vessel 02 increases, a better sealing effect is achieved by relying on the internal and external pressure difference, and sealing under high pressure is achieved.

[0037] like Figure 1As shown, in the initial state of an ultra-high pressure quick-opening air valve of the present invention, under the action of the gas pressure in the pressure vessel 02, the main valve 36 blocks and seals the outlet of the pressure vessel 02, and the pilot air chamber 124, the main air chamber 123 and the container air chamber 21 are connected through the second center hole 371. The pressures in the pilot air chamber 124, the main air chamber 123 and the container air chamber 21 are basically the same, and the pressure in the starting air chamber 13 is basically equal to the atmospheric pressure. When it is necessary to do work externally, the high-pressure gas is released from the pressure vessel 02. When the pressure in the pressure vessel 02 reaches the set pressure value, the high-pressure gas acts on the main piston 32 through the second center hole 371, driving the first-stage pilot valve stem 34 to move leftward. The first-stage pilot valve stem 34 moves to the right side, and the start-up air chamber 13 is connected to the container air chamber 21. The pressure in the start-up air chamber 13 increases, and the pilot piston 31 is pushed to the right side, so that the pilot air chamber 124 is connected to the outside atmosphere through the through hole 14, and the gas in the pilot air chamber 124 is quickly discharged to the atmosphere. The pressure difference between the main air chamber 123 and the pilot air chamber 124 increases. Under the action of pressure, the valve push rod 34 is driven to push the main piston 32 to move quickly to the left side, so that the main valve 36 quickly leaves the outlet of the pressure container 02, and the valve is opened. Figure 2 As shown, the ultra-high pressure quick-opening air valve of the present invention is applicable to a maximum pressure of not less than 350 MPa.

[0038] The present invention discloses an ultra-high pressure quick-opening air valve, which comprises a valve body 01, a pressure vessel 02, a pilot piston 31, a main piston 32, a main valve stem 33, a first-level pilot valve stem 34, a main valve 36, and a valve push rod 37. When the set opening pressure is reached in the pressure vessel 02, the first-level pilot valve stem 34 is triggered to move, and the high-pressure gas in the pressure vessel 02 enters the starting air chamber 13, pushing the pilot piston 31 to move rightward, and the pressure on the left side of the valve push rod 37 is rapidly reduced. Under the action of the pressure on the right side of the valve push rod 37, the main valve 36 is instantly lifted from the valve seat of the pressure vessel 02, and the valve is quickly opened, realizing the function of accurately and quickly opening the valve in an ultra-high pressure and large-caliber environment, and the valve has a small size and a high degree of integration, thereby providing technical support for the application and promotion of ultra-high pressure gas working systems.

[0039] Optionally, an exciter 38 is further included, which is arranged in the pressure vessel 02, and a working medium is arranged in the pressure vessel 02. The exciter 38 is used to excite the working medium to generate high-pressure gas. The outlet of the pressure vessel 02 is connected to a blowdown joint 04, and the inner cavity of the blowdown joint 04 is a blowdown air cavity 41. The energy form of the exciter 38 includes electrical energy, chemical energy, air energy and gas form, and the working medium can be carbon dioxide, nitrogen, argon, etc. In the initial state, the working medium in the pressure vessel 02 acts on the main valve 36 by the initial pressure, and the main valve 36 and the pressure vessel 02 are reliably sealed by the pressure difference between the container air cavity 21 and the blowdown air cavity 41. The pressure vessel 02 is provided with a working medium and an exciter 38, and the exciter 38 is used to excite the working medium to generate high-pressure gas, so that the ultra-high pressure quick-opening air valve of the present invention triggers the first-stage pilot valve stem 34 to open by the pressure of the working medium in the pressure vessel 02 until the valve is opened. The entire opening process does not require an external power source to drive, and a passive valve opening is realized.

[0040] Optionally, the first center hole includes a large diameter portion and a small diameter portion, the large diameter portion is close to the second end of the valve body 01, the first-stage pilot valve stem 34 includes a valve stem body 341 and a blocking block 342 arranged on one end of the valve stem body 341 close to the pressure vessel 02, the blocking block 342 and part of the valve stem body 341 are located in the large diameter portion of the first center hole, and the remaining valve stem body 341 is located in the small diameter portion of the first center hole, and the valve stem body 341 located in the large diameter portion of the first center hole is sleeved with a second spring 343, one end of the second spring 343 abuts against the blocking block 342, when the blocking block 342 abuts against the side wall of the large diameter end of the first center hole, the end of the valve stem body 341 away from the pressure vessel 02 touches an end of the main valve stem 33 located in the valve body 01, and in the natural state, under the action of the second spring 343, the blocking block 342 blocks the first center hole.

[0041] Optionally, a guide cylinder 322 is further included, the guide cylinder 322 is threadedly connected to the end of the large diameter portion of the first center hole, a mounting groove 372 is provided at the pushing end of the valve push rod 37 near the center, the guide cylinder 322 is placed in the mounting groove 372, a gap is provided between the guide cylinder 322 and the groove wall of the mounting groove 372, a groove is provided on the outer wall of the guide cylinder 322 to connect the second center hole 371 with the pilot air cavity 124, and one end of the valve stem body 341 near the pressure vessel 02 extends into the guide cylinder 322. The guide cylinder 322 is provided to prevent the first-stage pilot valve stem 34 from being misaligned during movement.

[0042] Optionally, it also includes a secondary pilot valve stem 35, which corresponds one-to-one to the through hole 14. A valve stem hole is provided on the partition 10, and the secondary pilot valve stem 35 passes through the valve stem hole. One end of the secondary pilot valve stem 35 abuts against the end of the first end of the pilot piston 31 away from the valve body 01, and the other end extends into the second cavity 21 to be sealed at the through hole 14. In the natural state, the secondary pilot valve stem 35 is sealed on the through hole 14, and the through hole 14 is opened when the pilot piston 31 pushes the secondary pilot valve stem 35.

[0043] Optionally, one end of the secondary pilot valve stem 35 is a mounting end and the other end is a blocking end, the mounting end is a radial boss, the blocking end is conical, a first groove 311 is provided on one side of the first end of the pilot piston 31 away from the valve body 01, the radial boss is arranged in the first groove 311, a spring groove is arranged on the partition 10, a third spring 351 is arranged on the secondary pilot valve stem 35, and the third spring 351 is arranged in the spring groove. Under the action of the third spring 351, the secondary pilot valve stem 35 blocks the through hole 14 in a natural state, and when the pilot piston 31 pushes the secondary pilot valve stem 35, the through hole 14 is opened. By installing the mounting end in the first groove 311, the pilot piston 31 and the secondary pilot valve stem 35 are in stable contact, the blocking end is conical, and the conical blocking end can block the through hole 14 tightly.

[0044] Optionally, the main valve stem 33 is threadedly connected to the first end of the valve body 01, and the length of the main valve stem 33 extending into the first cavity 11 is adjustable. By rotating the main valve stem 33, the length of the main valve stem 33 extending into the first cavity 11 is adjusted, and then the distance between the main valve stem 33 and the first-stage pilot valve stem 34 is adjusted, so as to adjust the opening pressure. The larger the distance, the greater the opening pressure. The pressure setting between 50 and 350 MPa can be achieved by adjusting the position of the main valve stem 33.

[0045] Optionally, the valve body 01 includes a first valve body assembly 15 and a second valve body assembly 16. The first valve body assembly 15 is connected to the second valve body assembly 16. A connecting end 161 is provided on the second valve body assembly 16. The pressure vessel 02 is threadedly connected to the connecting end 161. A spring tension sealing ring is provided on the inner side of the thread, and a self-tightening sealing ring is provided on the outer side of the thread, etc., so as to achieve reliable sealing in an ultra-high pressure environment.

[0046] The present invention provides a gas working system for an ultra-high pressure fast opening air valve, such as Figure 3 As shown, it includes the above-mentioned ultra-high pressure quick opening air valve, and also includes a guide cylinder 05, the guide cylinder 05 is connected to the outlet, the inner cavity of the guide cylinder 05 is communicated with the inner cavity of the pressure container 02, and the counterweight 06 is arranged on the inner wall of the guide cylinder 05 near the end of the pressure container 02. The high-pressure gas in the pressure container 02 is released into the guide cylinder 05 through the outlet, and the counterweight 06 is pushed to accelerate along the guide cylinder 05 until it exits the cylinder at high speed to do work on the outside.

[0047] Optionally, it also includes a spraying joint 04 , which is connected to the outlet, and the guide tube 05 is connected to the spraying joint 04 .

[0048] The embodiments described above are merely descriptions of preferred implementation modes of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An ultra-high pressure quick-opening air valve, characterized in that: It comprises a valve body (01), a pressure container (02), a pilot piston (31), a main piston (32), a main valve stem (33), a first-stage pilot valve stem (34), a main valve (36), and a valve push rod (37). The inner cavity of the valve body (01) is divided into a first cavity (11) and a second cavity (12) by a partition (10); a second through hole is provided on the partition (10); one end of the valve body (01) is a first end, and the other end is a second end; the second end of the valve body (01) is connected to the pressure container (02); an outlet is provided at one end of the pressure container (02) away from the valve body (01); the pressure container (02) is used to release high-pressure gas; The main valve stem (33) is connected to the first end portion of the valve body (01), and the main valve stem (33) extends into the first cavity (11). The pilot piston (31) is provided with a first through hole. The pilot piston (31) is arranged in the first cavity (11). The pilot piston (31) is suitable for moving forward and backward in the first cavity (11). A starting air cavity (13) is formed between the pilot piston (31) and a side wall of the first cavity (11) close to the first end of the valve body (01). At least one through hole (14) is provided on the side wall of the valve body (01). The through hole (14) is connected with the second cavity (12). When the pilot piston (31) is in the original position, the through hole (14) is closed. When the pilot piston (31) moves to the right, the through hole (14) is opened. The outer wall of the main piston (32) is in a step shape. The main piston (32) is provided with a first central hole extending in the length direction. The inner wall of the second cavity (12) is in a step shape. A spring seat (121) is provided in the second cavity (12). The large diameter portion and part of the small diameter portion of the main piston (32) are located in the second cavity (12). The remaining small diameter portion of the main piston (32) extends into the second through hole and the first through hole in sequence. The main piston (32) is suitable for moving forward and backward relative to the valve body (01) and the pilot piston (31). The small diameter portion of the main piston (32) is sleeved with a first spring (122). The first spring (122) is clamped between the spring seat (121) and the large diameter portion of the main piston (32). The large diameter portion of the main piston (32) and the small diameter portion of the inner wall of the second cavity (12) fit each other. The valve push rod (37) is provided with a second center hole (371) extending in the axial direction. One end of the valve push rod (37) is a pushing end. The pushing end is arranged in the second cavity (12) and the end of the pushing end is close to the end of the main piston (32). The outer wall of the pushing end and the large diameter part of the inner wall of the second cavity (12) are sealed with each other. The pushing end divides the second cavity (12) into two parts. The part close to the pressure vessel (02) is the main air chamber (123), and the part away from the pressure vessel (02) is the pilot air chamber (124). The other part of the valve push rod (37) passes through the valve body (01) and enters the pressure vessel (02). The valve push rod (37) is coaxially arranged with the main piston (32). The second center hole (371) is connected with the first center hole. The first-level pilot valve stem (34) is arranged in the first center hole. The first-level pilot valve stem (34) is suitable for moving left and right relative to the first center hole. When the first-level pilot valve stem (34) moves leftward to block the first center hole, the end of the main valve stem (34) away from the pressure container (02) touches the end of the main valve stem (33) located in the valve body (01). When the first-level pilot valve stem (34) moves rightward away from the end of the main valve stem (33) located in the valve body (01), the first center hole is connected with the starting air cavity (13) and the second center hole (371). In the natural state, the first-level pilot valve stem (34) blocks the first center hole. The main valve (36) is connected to one end of the valve push rod (37) located inside the pressure container (02). The main valve (36) is used to block the outlet or open the outlet. A through hole is provided on the main valve (36) to connect the inner cavity of the pressure container (02) with the second center hole (371).

2. The ultra-high pressure quick-opening air valve according to claim 1, characterized in that: It also includes an exciter (38), which is arranged in the pressure container (02). A working medium is arranged in the pressure container (02), and the exciter (38) is used to excite the working medium to generate high-pressure gas.

3. The ultra-high pressure quick-opening air valve according to claim 2, characterized in that: The first center hole comprises a large diameter portion and a small diameter portion, wherein the large diameter portion is close to one end of the pressure vessel (02); the first-stage pilot valve stem (34) comprises a valve stem body (341) and a blocking block (342) arranged on one end of the valve stem body (341) close to the pressure vessel (02); the blocking block (342) and a part of the valve stem body (341) are located in the large diameter portion of the first center hole, and the rest of the valve stem body (341) is located in the small diameter portion of the first center hole; a second spring (343) is sleeved on the valve stem body (341) located in the large diameter portion of the first center hole, and one end of the second spring (343) abuts against the blocking block (342); when the blocking block (342) abuts against the side wall of the large diameter end of the first center hole, the end of the valve stem body (341) away from the pressure vessel (02) touches an end of the main valve stem (33) located in the valve body (01).

4. The ultra-high pressure quick-opening air valve according to claim 3, characterized in that: It also includes a guide cylinder (322), the guide cylinder (322) being threadedly connected to the end of the large diameter portion of the first center hole, a mounting groove (372) being provided at a position close to the center of the pushing end of the valve push rod (37), the guide cylinder (322) being placed in the mounting groove (372), a gap being provided between the guide cylinder (322) and the groove wall of the mounting groove (372), a groove being provided on the outer wall of the guide cylinder (322) so that the second center hole (371) is connected to the pilot air chamber (124), and an end of the valve stem body (341) close to the pressure vessel (02) extends into the guide cylinder (322).

5. The ultra-high pressure quick-opening air valve according to claim 4, characterized in that: It also includes a secondary pilot valve stem (35), which corresponds to the through hole (14) one by one. The partition plate (10) is provided with a valve stem hole, and the secondary pilot valve stem (35) passes through the valve stem hole. One end of the secondary pilot valve stem (35) abuts against the end of the first end of the pilot piston (31) away from the valve body (01), and the other end extends into the second cavity (21) to block the through hole (14). In the natural state, the secondary pilot valve stem (35) blocks the through hole (14), and the through hole (14) is opened when the pilot piston (31) pushes the secondary pilot valve stem (35).

6. The ultra-high pressure quick-opening air valve according to claim 5, characterized in that: One end of the secondary pilot valve stem (35) is a mounting end and the other end is a blocking end, the mounting end is a radial boss, and the blocking end is conical. A first groove (311) is provided on a side surface of the first end of the pilot piston (31) away from the valve body (01), and the radial boss is arranged in the first groove (311). A spring groove is provided on the partition plate (10), and a third spring (351) is provided on the secondary pilot valve stem (35), and the third spring (351) is arranged in the spring groove.

7. The ultra-high pressure quick-opening air valve according to claim 6, characterized in that: The main valve stem (33) is threadedly connected to the first end portion of the valve body (01), and the length of the main valve stem (33) extending into the first cavity (11) is adjustable.

8. The ultra-high pressure quick-opening air valve according to claim 7, characterized in that: The valve body (01) comprises a first valve body assembly (15) and a second valve body assembly (16); the first valve body assembly (15) is connected to the second valve body assembly (16); a connecting end (161) is provided on the second valve body assembly (16); and the pressure container (02) is threadedly connected to the connecting end (161).

9. A gas working system comprising the ultra-high pressure fast opening air valve according to any one of claims 1 to 8, characterized in that: It also includes a guide cylinder (05), the guide cylinder (05) is connected to the outlet, the inner cavity of the guide cylinder (05) is connected to the inner cavity of the pressure container (02), the guide cylinder (05) is used to place a counterweight (06), and the high-pressure gas in the pressure container (02) is used to do work on the counterweight (06).

10. The gas working system of the ultra-high pressure fast opening air valve according to claim 9, characterized in that: It also comprises a spraying joint (04), wherein the spraying joint (04) is connected to the outlet, and the guide cylinder (05) is connected to the spraying joint (04).

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