A flow gas release device

Abstract

The present invention discloses a flow gas release device. The device includes: a hole seat, a hole cover, a pneumatic cylinder body, a release rod, a conical limit release sleeve, a first steel ball, a second steel ball, a piston ring, a spring, a shearing piece, a rectifier cover, a pneumatic cylinder cover, a first sealing ring, a second sealing ring, a third sealing ring, a sealing gasket, a large pressure ring, a medium pressure ring, and a small pressure ring; the device has a simple structure and can achieve an airtight function when working on land and an underwater seal when working underwater, and can also meet the needs of rapid pressure relief when the internal pressure of underwater equipment is too high, thereby minimizing the risk of explosion. The parts of the present invention are simple to process and have a high cost-effectiveness. It can solve the problem of a sudden increase in the internal pressure of a device or equipment and the requirement for rapid gas release to a certain extent, and has strong feasibility.

Description

Technical Field

[0001] The present invention relates to the technical field of gas release, and in particular to a flow gas release device. Background Art

[0002] Equipment safety is gaining increasing attention. During transportation, storage, and use, weapons loaded with high-energy explosives and equipment equipped with lithium batteries may be exposed to high temperatures, leading to chemical reactions and the generation of large amounts of gas. This can increase internal pressure and even create the risk of explosion. These devices or equipment typically require safety valves, but traditional safety valves on the market are generally small in size and have limited pressure relief flow (the pressure relief hole diameter is typically around 10mm). This makes it difficult to achieve rapid pressure relief and provide safety protection. Furthermore, these safety valves typically only provide daily airtightness and lack underwater sealing capabilities, making them unsuitable for underwater operations.

[0003] With regard to the problem that safety valves in the prior art cannot achieve rapid pressure relief, no effective solution has been proposed so far. Summary of the Invention

[0004] An embodiment of the present invention provides a flow gas release device to solve the problem in the prior art that a safety valve cannot achieve rapid pressure relief.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a flow gas release device, which includes: a hole seat, which is arranged in the mounting hole of the gas generating equipment; a rectifying cover is installed on the top of the hole seat; a hole cover is installed on the bottom of the hole seat; a medium-pressure ring is installed on the top of the hole cover; a pneumatic cylinder body is installed on the bottom of the hole cover; an air inlet is provided on the side of the hole cover; a release rod, which is a cylindrical structure, and the outer surface of the release rod is air-tightly connected to the inner surface of the medium-pressure ring; a first groove is provided on the bottom side of the release rod for clamping a first steel ball; a conical limit release sleeve, which is arranged in the inner cavity of the hole cover, and the top inner surface of the conical limit release sleeve It is connected to the first groove through the first steel ball; the inner cavity of the conical limit release sleeve is provided with a spring; the bottom side surface of the conical limit release sleeve is provided with a second groove for clamping the second steel ball; the piston ring, the top of the piston ring penetrates into the inner cavity of the conical limit release sleeve, and the spring is compressed between the top of the piston ring and the bottom of the release rod; the piston ring and the pneumatic cylinder body are connected through the second steel ball; an air intake channel is provided at the top of the pneumatic cylinder body; the top of the air intake channel and the air intake hole form an air intake space; the bottom of the air intake channel is connected to the piston ring; a shearing piece, the shearing piece is provided at the bottom of the piston ring, for limiting the downward movement of the piston ring.

[0006] Optionally, a piston cavity is provided in the piston ring for allowing the columnar member to penetrate; a first step hole is provided at the bottom of the piston ring and on the inner surface of the bottom of the piston cavity for placing the shearing plate; the shearing plate abuts against the columnar member.

[0007] Optionally, it further includes: a small pressure ring; the small pressure ring is used to fix the shearing piece on the piston ring.

[0008] Optionally, it also includes: a pneumatic cylinder cover; the pneumatic cylinder cover is fixedly connected to the bottom of the pneumatic cylinder body; the columnar member is fixed on the pneumatic cylinder cover; the columnar member and the pneumatic cylinder cover are an integrated structure.

[0009] Optionally, a through hole is provided in the middle of the fairing cover, for allowing the release rod to pop out from the through hole via a spring.

[0010] Optionally, the inner surface of the hole seat and the top surface of the hole cover are fixedly connected via a large pressure ring.

[0011] Optionally, a stepped threaded hole is provided on the top of the hole cover for threaded connection with the medium-pressure ring; and a sealing gasket is provided between the hole cover and the medium-pressure ring.

[0012] Optionally, a first sealing ring is provided between the release rod and the medium pressure ring.

[0013] Optionally, a second sealing ring is provided between the hole seat and the hole cover; and a third sealing ring is provided between the piston ring and the cylinder body of the pneumatic cylinder.

[0014] Optionally, the top of the hole seat is fixedly connected to the fairing cover by a first fastening screw; the pneumatic cylinder gland is fixedly connected to the bottom of the pneumatic cylinder body by a second fastening screw.

[0015] Beneficial effects of the present invention:

[0016] The present invention provides a flow gas release device, which adopts a simple mechanical structure. By using conventional parts and standard parts such as a hole seat, a hole cover, a pneumatic cylinder body, a release rod, a conical limit release sleeve, a first steel ball, a second steel ball, a piston ring, a spring, a shearing piece, a fairing cover, a pneumatic cylinder cover, a first sealing ring, a second sealing ring, a third sealing ring, and a sealing gasket, it can achieve underwater sealing in both onshore and underwater working states, and can also meet the needs of rapid pressure relief when the internal pressure of underwater equipment is too high, thereby minimizing the risk of explosion. The parts of the present invention are simple to process and have a high cost-effectiveness. It can to a certain extent solve the problem of sudden increase in internal pressure of a device or equipment, requiring rapid gas release, and has strong feasibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a flow gas release device provided by an embodiment of the present invention.

[0018] Explanation of symbols:

[0019] Hole seat-1, fairing cover-2, hole cover-3, medium pressure ring-4, pneumatic cylinder body-5, release rod-6, first steel ball-7, conical limit release sleeve-8, spring-9, second steel ball-10, piston ring-11, air inlet hole-12, air inlet channel-13, shear plate-14, columnar part-15, small pressure ring-16, pneumatic cylinder cover-17, large pressure ring-18, sealing gasket-19, first sealing ring-20, second sealing ring-21, third sealing ring-22, first fastening screw-23, second fastening screw-24. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the embodiments described are only some, not all, of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0021] Equipment safety is gaining increasing attention. During transportation, storage, and use, weapons loaded with high-energy explosives and equipment equipped with lithium batteries may be exposed to high temperatures, leading to chemical reactions and the generation of large amounts of gas. This can increase internal pressure and even create the risk of explosion. These devices or equipment typically require safety valves, but traditional safety valves on the market are generally small in size and have limited pressure relief flow (the pressure relief hole diameter is typically around 10mm). This makes it difficult to achieve rapid pressure relief and provide safety protection. Furthermore, these safety valves typically only provide daily airtightness and lack underwater sealing capabilities, making them unsuitable for underwater operations.

[0022] Therefore, the present invention provides a large flow gas release device for high pressure (overpressure) protection. Figure 1 Schematic diagram of a flow gas release device provided by an embodiment of the present invention. Figure 1 As shown, the device includes:

[0023] 1. A hole seat 1, which is installed in the mounting hole of a gas-generating device; a rectifying cover 2 is installed on the top of the hole seat 1; a hole cover 3 is installed on the bottom of the hole seat 1; a medium-pressure ring 4 is installed on the top of the hole cover 3; a pneumatic cylinder body 5 is installed on the bottom of the hole cover 3; an air inlet 12 is provided on the side of the hole cover 3;

[0024] Specifically, a mounting hole is provided on the shell of the gas-generating equipment (i.e., a weapon equipped with high-energy explosives, or a device equipped with a power lithium battery), and a hole seat 1 is disposed in the mounting hole and is welded and fixed to the shell of the gas-generating equipment. Two steps (a top step and a bottom step) are provided in the middle of the hole seat 1, and a rectifier cover 2 is installed on the top step (the top step is fixedly connected to the rectifier cover 2 by a first fastening screw 23), and the rectifier cover 2 is also disposed in the mounting hole. The rectifier cover 2 is used to beautify the appearance and rectify the appearance of the gas-generating equipment, that is, the exterior of the rectifier cover 2 (the top surface of the rectifier cover 2) can be set according to the outer curve of the gas-generating equipment, and the interior of the rectifier cover 2 (the bottom surface of the rectifier cover 2) is a planar structure, and a through hole is provided in the middle of the rectifier cover 2 for ejecting the release rod 6.

[0025] A hole cover 3 is mounted on the bottom step of the hole seat 1. The inner surface of the hole seat 1 and the top surface of the hole cover 3 are fixedly connected via a large pressure ring 18. That is, the side surface of the large pressure ring 18 presses against the inner surface of the hole seat 1, and the bottom surface of the large pressure ring 18 presses against the top surface of the hole cover 3. A second sealing ring 21 is provided between the hole seat 1 and the hole cover 3.

[0026] A medium pressure ring 4 is installed on the top of the hole cover 3. Specifically, a stepped threaded hole is provided on the top of the hole cover 3 for threaded connection of the medium pressure ring 4. A sealing gasket 19 is provided between the hole cover 3 and the medium pressure ring 4 to ensure the airtight and watertight function of the medium pressure ring 4 and the hole cover 3. Furthermore, the medium pressure ring 4 and the hole cover 3 can be provided as a single part.

[0027] A pneumatic cylinder body 5 is mounted on the bottom of the hole cover 3. Specifically, a threaded hole is provided at the bottom of the hole cover 3 for threaded connection to the pneumatic cylinder body 5. An air inlet 12 is provided on the side of the hole cover 3. There are multiple air inlet holes 12. Preferably, in the present invention, four air inlet holes 12 are provided.

[0028] 2. Release rod 6, which is a cylindrical structure. The outer surface of the release rod 6 is airtightly connected to the inner surface of the medium pressure ring 4. A first groove is provided on the bottom side of the release rod 6 for clamping the first steel ball 7;

[0029] The release rod 6 is a cylindrical structure, and the outer surface of the middle part of the release rod 6 is provided with two radial first sealing grooves for installing the first sealing ring 20; that is, the first sealing ring 20 is provided between the release rod 6 and the medium pressure ring 4. A first groove is provided on the bottom side of the release rod 6 for accommodating the first steel ball 7; the bottom end face of the release rod 6 is provided with a step hole for limiting the spring 9. The outer diameter of the release rod 6 is related to the gas release flow of the gas generating equipment, and should be designed and selected according to the size of the gas generating equipment and the safety pressure value. If the gas release flow is to be large, the outer diameter of the release rod 6 needs to be designed to be larger, and correspondingly, the diameter of the through hole in the middle of the fairing 2 should also be larger.

[0030] 3. A conical limit release sleeve 8, which is arranged in the inner cavity of the hole cover 3. The top inner surface of the conical limit release sleeve 8 is connected to the first groove through the first steel ball 7; a spring 9 is provided in the inner cavity of the conical limit release sleeve 8; and a second groove is provided on the bottom side surface of the conical limit release sleeve 8 for clamping the second steel ball 10;

[0031] Specifically, the conical limit release sleeve 8 is arranged in the middle inner cavity of the hole cover 3; the conical limit release sleeve 8 is a rotating structure, and its top inner surface accommodates the first steel ball 7, that is, the top inner surface of the conical limit release sleeve 8 and the first groove of the release rod 6 form a first accommodating space that can accommodate the first steel ball 7, and the first steel ball 7 and the conical limit release sleeve 8 and the release rod 6 abut against each other. The middle inner cavity of the conical limit release sleeve 8 is provided with a spring 9, one end of the spring 9 is compressed in the step hole of the bottom end face of the release rod 6, and the other end is compressed in the inner step hole of the middle inner cavity of the conical limit release sleeve 8. The bottom side surface of the conical limit release sleeve 8 is provided with a second groove for accommodating the second steel ball 10.

[0032] 4. Piston ring 11. The top of the piston ring 11 penetrates the inner cavity of the conical limit release sleeve 8. The spring 9 is compressed between the top of the piston ring 11 and the bottom of the release rod 6. The piston ring 11 is connected to the cylinder body 5 via the second steel ball 10.

[0033] The top of the piston ring 11 is a rocket-shaped structure. The top of the piston ring 11 sequentially penetrates the bottom and middle inner cavity of the conical limit release sleeve 8. The spring 9 is compressed between the top of the piston ring 11 and the bottom of the release rod 6. The pneumatic cylinder body 5, the second groove of the conical limit release sleeve 8, and the top side surface of the piston ring 11 form a second accommodating space that can accommodate the second steel ball 10. The second steel ball 10 abuts against the top side surface of the piston ring 11, the pneumatic cylinder body 5, and the second groove of the conical limit release sleeve 8. When the second steel ball 10 falls off, the spring 9 will apply a downward force to the conical limit release sleeve 8, prompting the conical limit release sleeve 8 to move toward the piston ring 11.

[0034] Two sealing grooves are provided on the outer surface of the piston ring 11 for installing a third sealing ring 22; that is, a third sealing ring 22 is provided between the piston ring 11 and the pneumatic cylinder body 5 to achieve airtight and watertight functions between the pneumatic cylinder body 5 and the piston ring 11.

[0035] An air intake passage 13 is provided at the top of the pneumatic cylinder body 5; the top of the air intake passage 13 and the air intake hole 12 form an air intake space; the bottom of the air intake passage 13 is connected to the piston ring 11;

[0036] Specifically, high-pressure gas acts on the piston ring 11 from the air inlet 12 along the air inlet passage 13. Under the action of the gas pressure, the piston ring 11 tends to move downward.

[0037] 5. A shearing piece 14 , which is provided at the bottom of the piston ring 11 and is used to limit the downward movement of the piston ring 11 .

[0038] Specifically, a piston cavity is provided in the piston ring 11 for the columnar member 15 to penetrate;

[0039] A first stepped hole is provided at the bottom of the piston ring 11 and on the inner surface of the bottom of the piston cavity for accommodating the shearing piece 14 ; the shearing piece 14 abuts against the top end of the columnar member 15 .

[0040] The shear plate 14 is a thin sheet structure with a weak link in the middle. When the internal pressure of the gas generating equipment increases, the shear plate 14 breaks in the middle. The thickness of the weak link in the middle is designed according to the maximum pressure safety value. The shear plate 14 is fixed to the piston ring 11 by a small pressure ring 16.

[0041] 6. A pneumatic cylinder cover 17, which is fixedly connected to the bottom of the pneumatic cylinder body 5 (specifically, the pneumatic cylinder cover 17 is fixedly connected to the bottom of the pneumatic cylinder body 5 via a second fastening screw 24); the columnar member 15 is fixed on the pneumatic cylinder cover 17; the columnar member 15 and the pneumatic cylinder cover 17 are an integrated structure.

[0042] It should be noted that, in the present invention, the flow gas release devices are all located inside the equipment that generates the gas, and the top of the fairing cover 2 is located outside the equipment that generates the gas.

[0043] The specific installation process of the present invention is as follows:

[0044] Install the second sealing ring 21 on the side of the hole cover 3, install the hole cover 3 with the second sealing ring 21 installed to the bottom step of the hole seat 1, and fix the hole cover 3 to the hole seat 1 with the large pressure ring 18; install the rectifier cover 2 to the top step of the hole seat 1, and fix it with the first fastening screw 23; wipe the installation position of the sealing gasket 19 corresponding to the hole cover 3 and the medium pressure ring 4, and put the sealing gasket 19 on the medium pressure ring 4; take the release rod 6, wipe the two sealing grooves on the outer surface of the release rod 6, and install the two first sealing rings 20; insert the release rod 6 from the bottom of the medium pressure ring 4. Thread the assembled medium pressure ring 4 into the hole cover 3; take the first steel ball 7, and embed it into the first groove provided on the bottom side of the release rod 6, and install the spring 9 at the bottom step hole of the release rod 6; take the conical limit release sleeve 8, and embed the second steel ball 10 into the second groove provided on the bottom side surface of the release rod 6, and then install it into the top hole of the pneumatic cylinder body 5, so that the second steel ball 10 is partially embedded in the pneumatic cylinder body 5, and the conical limit release sleeve 8 is positioned in the axial direction of the pneumatic cylinder body 5. Take the piston ring 11, wipe the two sealing grooves on the side of the piston ring 11, and install two third sealing rings 22; take the shearing piece 14, and place the shearing piece 14 in the bottom step hole of the piston ring 11, and fix the shearing piece 14 to the piston ring 11 with a small pressure ring 16. Insert the assembled piston ring 11 from the bottom of the cylinder body 5, and insert the top of the piston ring 11 into the inner cavity of the conical limit release sleeve 8. Take the cylinder gland 17, pass the columnar member 15 of the cylinder gland 17 through the piston ring 11 and the middle of the shearing piece 14, and use the second fastening screw 24 to securely connect the cylinder gland 17 to the cylinder body 5. Thread the assembled cylinder body 5 into the bottom of the hole cover 3, and the spring 9 is compressed.

[0045] The working process of the present invention is as follows:

[0046] When the gas generating equipment generates high-pressure gas accidentally, the high-pressure gas acts on the piston ring 11 from the air inlet 12 along the air inlet channel 13. Under the action of the high-pressure gas, the piston ring 11 tends to move toward its cavity, but the shearing piece 14 blocks the movement of the piston ring 11. When the air pressure increases to exceed the safe vertical, and the force of the air pressure acting on the piston ring 11 is greater than the shear force of the shearing piece 14, the shearing piece 14 is sheared, and the piston ring 11 moves toward the cavity. The second steel ball 10 falls off from the second groove. Under the action of the spring 9, the conical limit release sleeve 8 moves toward the direction of the piston ring 11, and the first steel ball 7 falls off from the first groove on the release rod 6. The release rod 6 releases the limit and pops out outward (towards the through hole in the middle of the fairing cover 2) under the action of the spring 9. The high-pressure gas is released and discharged from the through hole in the middle of the fairing cover 2 at a large flow rate.

[0047] When the present invention is used underwater, the first sealing ring 20, the sealing gasket 19, the second sealing ring 21 and the third sealing ring 22 are used in coordination to achieve the sealing requirements of underwater devices or equipment.

[0048] Beneficial effects of the present invention:

[0049] The present invention provides a flow gas release device, which adopts a simple mechanical structure. By using conventional parts and standard parts such as a hole seat 1, a hole cover 3, a pneumatic cylinder body 5, a release rod 6, a conical limit release sleeve 8, a first steel ball 7, a second steel ball 10, a piston ring 11, a spring 9, a shearing piece 14, a fairing cover 2, a pneumatic cylinder cover 17, a first sealing ring 20, a second sealing ring 21, a third sealing ring 22, and a sealing gasket 19, it can achieve underwater sealing in both onshore and underwater working states, and can also meet the needs of rapid pressure relief when the internal pressure of underwater equipment is too high, thereby minimizing the risk of explosion. The parts of the present invention are simple to process and have high cost-effectiveness. It can solve the problem of sudden increase in internal pressure of a device or equipment and the requirement for rapid gas release to a certain extent, and has strong feasibility.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A flow gas release device, characterized in that: include: A hole seat, the hole seat is arranged in the mounting hole of the gas generating equipment; a rectifying cover is installed on the top of the hole seat; a hole cover is installed on the bottom of the hole seat; a medium pressure ring is installed on the top of the hole cover; a pneumatic cylinder body is installed on the bottom of the hole cover; an air inlet is provided on the side of the hole cover; A release rod is a cylindrical structure, the outer surface of which is airtightly connected to the inner surface of the medium-pressure ring; a first groove is provided on the bottom side of the release rod for accommodating a first steel ball; A conical limit release sleeve, the conical limit release sleeve is arranged in the inner cavity of the hole cover, the top inner surface of the conical limit release sleeve is connected to the first groove through the first steel ball; the inner cavity of the conical limit release sleeve is provided with a spring; the bottom side surface of the conical limit release sleeve is provided with a second groove for clamping the second steel ball; A piston ring, the top of which penetrates into the inner cavity of the conical limit release sleeve, the spring is compressed between the top of the piston ring and the bottom of the release rod; the piston ring is connected to the cylinder body of the pneumatic cylinder via the second steel ball; An air intake passage is provided at the top of the cylinder body of the pneumatic cylinder; the top of the air intake passage and the air intake hole form an air intake space; the bottom of the air intake passage is connected to the piston ring; A shearing piece, which is arranged at the bottom of the piston ring and is used to limit the downward movement of the piston ring; A piston cavity is provided in the piston ring for the columnar member to penetrate; A first step hole is provided at the bottom of the piston ring and on the inner surface of the bottom of the piston cavity, for accommodating the shearing plate; the shearing plate abuts against the columnar member; Small pressure ring; the small pressure ring is used to fix the shearing piece on the piston ring; Pneumatic cylinder gland; the pneumatic cylinder gland is fixedly connected to the bottom of the pneumatic cylinder body; The columnar member is fixed on the pneumatic cylinder gland; The columnar member and the pneumatic cylinder cover are an integrated structure.

2. The device according to claim 1, characterized in that: A through hole is provided in the middle of the fairing cover, and is used to enable the release rod to pop out from the through hole through a spring.

3. The device according to claim 1, characterized in that: The inner side surface of the hole seat and the top surface of the hole cover are fixedly connected through a large pressure ring.

4. The device according to claim 1, characterized in that: A stepped threaded hole is provided on the top of the hole cover for threaded connection with the medium pressure ring; A sealing gasket is provided between the hole cover and the medium pressure ring.

5. The device according to claim 1, characterized in that: A first sealing ring is provided between the release rod and the medium pressure ring.

6. The device according to claim 1, characterized in that: A second sealing ring is provided between the hole seat and the hole cover; A third sealing ring is provided between the piston ring and the cylinder body of the pneumatic cylinder.

7. The device according to claim 1, characterized in that: The top of the hole seat is fixedly connected to the fairing cover by a first fastening screw; The pneumatic cylinder gland is fixedly connected to the bottom of the pneumatic cylinder body by a second fastening screw.

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