High-pressure gas ejection device and using method thereof

Abstract

The invention discloses a high-pressure gas catapulting device and a using method thereof.The catapulting device comprises a closed primary containing chamber and a plurality of power units installed in the primary containing chamber and used for loading high-pressure gas, the primary containing chamber is provided with a gas outlet, and the gas volumes of the power units are different. The high-pressure gas is released through the power unit and output through the gas outlet of the primary containing chamber to provide ejection power for the high-pressure gas ejection device. The inner wall of the launching device is prevented from being ablated by high-temperature fuel gas, meanwhile, the launching device is not prone to investigation, power units with different volumes are used in cooperation, the large power unit and the small power unit are reasonably arranged, and the adaptability of the device is improved; the installation and use operations are simplified, the internal pressure can be effectively borne, and the device is prevented from being damaged; the device is light in weight.

Description

Technical Field

[0001] The invention relates to the field of ejection power devices, and in particular to a high-pressure gas ejection device which is reusable, light in weight, can be quickly assembled and disassembled, and has high flexibility in use, and a method for using the same. Background Art

[0002] Ejection power devices are widely used in both military and civilian fields. Currently, most ejection power devices use gas injection, which uses high-temperature gas as the ejection medium. During the ejection operation, the high-temperature gas continuously generated by the ejection power unit drives the ejection carrier to move and eventually discharges it into the surrounding environment. On the one hand, this ejection power unit has ablation on the inner wall of the launch device, which reduces the number of ejection reuses and increases the cost of use; on the other hand, it is easy to be detected, which to a certain extent weakens the battlefield survivability of the ejection equipment; and the traditional ejection power device has the problems of heavy product weight, complex structure, and difficulty in use, and is not suitable for occasions that require rapid response. Summary of the invention

[0003] The present invention provides a high-pressure gas ejection device power unit and a use method thereof, so as to at least solve the technical problems mentioned in the background technology.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: A high-pressure gas ejection device comprises a sealed primary chamber and a plurality of power units installed in the primary chamber for loading high-pressure gas, the primary chamber being provided with a gas outlet, the gas volumes of the plurality of power units being different, the high-pressure gas being released through the power unit and output through the gas outlet of the primary chamber to provide ejection power for the high-pressure gas ejection device.

[0005] The high-pressure gas ejection device of the present invention uses the high-pressure gas in the power unit as the power source, and will not generate high-temperature combustion gas during the ejection process. Compared with the traditional ejection power device, it avoids the continuous ablation of the inner wall of the launch device, significantly prolongs the service life of the ejection device, reduces the use cost, and also reduces the possibility of being detected, thereby improving the survivability of the ejection equipment on the battlefield. At the same time, by using power units of different sizes in combination, different power units can be flexibly combined according to the preset ejection distance and speed requirements of the object to be ejected, thereby improving the use flexibility of the ejection device. Compared with the method of using a computer to control the opening and closing of the gas valve to adjust the power output, the mechanical structure of the present invention is more stable in use.

[0006] As a further preferred embodiment of the above technical solution, a large power unit and several small power units are installed in the primary chamber, the gas volume of the large power unit is larger than that of the small power units, the large power unit is installed in the middle of the primary chamber, and the small power units are evenly installed around the large power unit on the outside of the large power unit. This layout makes the high-pressure gas in the primary chamber relatively evenly distributed during release, thereby improving the stability and accuracy of the ejection and balancing the reaction force on the primary chamber.

[0007] As a further preferred embodiment of the above technical solution, the initial volume chamber includes an upper end plate, a cylinder wall and a lower end plate, which are enclosed to form a cylinder structure, and the upper end plate is provided with a gas outlet; a buffer chamber for bearing the pressure of the cylinder structure is provided below the cylinder structure, and the cylinder structure and the buffer chamber are enclosed to form a closed initial volume chamber. The setting of the buffer chamber can bear the pressure of the cylinder structure, avoid damage to the initial volume chamber due to excessive internal high-pressure gas pressure, and improve the safety and service life of the device.

[0008] As a further preferred embodiment of the above technical solution, an air bag is arranged in the buffer chamber, which further enhances the buffer effect, can better absorb and disperse the pressure transmitted from the initial volume chamber, protect the initial volume chamber structure, and also helps to maintain the overall stability of the device.

[0009] As a further preferred embodiment of the above technical solution, flanges are installed outside the gas charging ports of the power units, the large power unit is fixed to the lower end plate of the initial volume chamber through the flanges, and the small power unit is fixed to the flanges of the large power unit and the lower end plate of the initial volume chamber through the flanges. The installation of the flanges makes it easier to install and remove the power unit, and it is easy to replace the power unit after the excitation, so as to achieve the reuse of the high-pressure gas ejection device and reduce the use cost. The small power unit, the large power unit, and the initial volume chamber are connected through the flanges to form an integral structure, which improves the structural strength and stability.

[0010] As a further preferred embodiment of the above technical solution, the lower end plate is provided with a through hole at a position corresponding to the installation position of the power unit, so that the cylindrical structure and the buffer chamber are connected. The opening of the lower end plate is conducive to simplifying the installation of the power unit on the one hand, and the power unit can be directly pushed to the set position from the opening; on the other hand, it is also conducive to the conduction and dispersion of pressure. When under pressure, the airbag or other elastic material in the buffer chamber can contact the power unit from the opening, providing it with a better support effect and ensuring the stability of the entire primary chamber structure.

[0011] As a further preferred embodiment of the above technical solution, the cylinder wall includes an inner metal cylinder wall and a composite cylinder wall attached to the outside of the metal cylinder wall; the composite cylinder wall is obtained by impregnating at least one of carbon fiber, glass fiber, basalt fiber and aramid fiber with resin and winding it with the metal cylinder wall as a core mold. This structure not only utilizes the high strength and good sealing of the metal cylinder wall, but also combines the characteristics of light weight and high strength of the composite cylinder wall, reduces the overall weight of the device, and at the same time improves the compression resistance and corrosion resistance of the cylinder wall, thereby extending the service life of the device.

[0012] As a further preferred embodiment of the above technical solution, the power unit includes an air chamber, which is provided with an air filling port and an air outlet; an air outlet screw cover is provided outside the air outlet, and an air outlet hole is provided inside the air outlet screw cover to connect the air outlet; a threshold plate is provided at the air outlet, and the threshold plate is a steel plate loaded with an ignition device and gunpowder, and the threshold plate separates the air outlet hole from the air outlet.

[0013] As a further preferred embodiment of the above technical solution, a groove is provided on the steel plate surface of the threshold plate, and the groove divides the middle area of ​​the threshold plate into several parts, and the gunpowder is loaded in the groove. The gunpowder is installed in the groove. When the gunpowder is triggered, the high temperature generated causes the material performance at the groove to drop significantly or even fuse. Under the action of the internal pressure, the threshold plate cracks along the groove and bends outward to form a gas channel, which can avoid the threshold plate from being irregularly broken and causing the blockage of the gas outlet hole. The groove can be designed in different forms, such as a cross groove or a cross groove. The more grooves there are, the larger the area of ​​the gas channel formed in the middle of the threshold plate in the later stage. Therefore, the power output of the gas unit can be controlled by controlling the groove form. At the same time, the groove depth, groove width and threshold plate material of the groove can be designed according to the internal pressure requirements. The threshold plate is made of materials with good toughness such as 304 stainless steel and 316 stainless steel, and the gunpowder is made of a blunt, high energy density heat-generating agent.

[0014] As a further optimization of the above technical solution, the air chamber includes a metal liner and a composite material layer attached to the outer wall of the metal liner; the composite material layer is obtained by impregnating at least one of carbon fiber, glass fiber, basalt fiber and aramid fiber with resin and winding it with the metal liner as a core mold. The combination of composite materials and metal liner greatly reduces the weight of the power unit. On the one hand, it can reduce the requirements for the carrying capacity of the ejection device, and on the other hand, it can reduce the difficulty of assembling the power unit, so that the assembly can be completed by one person without the assistance of multiple people and tooling, and the installation and deployment can be completed quickly, which improves the application flexibility and practicality of the ejection power unit.

[0015] As a further preferred embodiment of the above technical solution, an inflatable screw cover is arranged outside the inflation port, and an inflation through hole is opened on the inflatable screw cover to connect with the inflation port; sealing rings are arranged between the air chamber and the inflatable screw cover and between the air chamber and the threshold plate.

[0016] Based on the same technical concept, the present invention also provides a method for using the above-mentioned high-pressure gas ejection device, comprising the following steps: S1. Fill the power unit with high-pressure gas before use. After filling, fix the power unit to the predetermined installation position of the cylindrical structure, and then install the buffer chamber under the cylindrical structure to achieve the sealing of the primary chamber; S2, sending a signal to the power unit to make the high-pressure gas ejected from the power unit to the primary chamber, and then output from the gas outlet after being mixed in the primary chamber, to provide ejection power to the high-pressure gas ejection device; S3. After the excitation is completed, the buffer chamber and the power unit are removed in sequence, and after the power unit is replaced, S1 to S3 are repeated to achieve the reuse of the high-pressure gas ejection device.

[0017] Compared with the prior art, the advantages of the present invention are: The ejection device of the present invention adopts high-pressure gas as the ejection medium, thereby avoiding the ablation of the inner wall of the launch device by high-temperature combustion gas, and is not easy to be detected, thereby improving the battlefield survivability; the power units of different volumes are used in combination, and the layout of large and small power units is reasonable, and the gas release amount and speed can be flexibly adjusted according to the ejection requirements, thereby enhancing the adaptability and stability of the device; the special structure of the initial volume chamber and the setting of the buffer chamber are conducive to the modular installation of the power unit, simplifying the installation and use operations, and can effectively bear the internal pressure to prevent the device from being damaged; the device is light in weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram (half section) of the high-pressure gas ejection device of Example 1; Figure 2 Schematic diagram of the installation position of the power unit of Example 1 in the primary chamber; Figure 3 Schematic diagram of the structure of the cylindrical structure in the primary chamber of Example 1; Figure 4 It is a structural schematic diagram (cross section) of the large power unit of Example 1; Figure 5 It is a structural schematic diagram of the large power unit of Example 1 (stereoscopic); Figure 6 Schematic diagram of the slotting of the threshold plate in the large power unit of Example 1.

[0019] Legend: 1. Initial volume chamber; 11. Upper end plate; 12. Composite material cylinder wall; 13. Metal cylinder wall; 14. Lower end plate; 15. Middle casing; 2. Large power unit; 21. Air outlet screw cover; 22. Threshold plate; 23. Metal liner; 24. Composite material layer; 25. Flange; 26. Inflatable screw cover; 3. Small power unit; 4. End face sealing ring; 5. Bolts; 6. Airbag. DETAILED DESCRIPTION

[0020] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and Examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0021] Embodiment 1: like Figure 1-Figure 3 As shown, the high-pressure gas ejection device of this embodiment includes an initial volume chamber 1 and a power unit installed in the initial volume chamber 1 for loading high-pressure gas, the initial volume chamber 1 includes an upper end plate 11, a cylinder wall and a lower end plate 14, the upper end plate 11, the cylinder wall and the lower end plate 14 are enclosed to form a cylinder structure, the upper end plate 11 is provided with a gas outlet; a middle protective tube 15 is arranged in the middle of the cylinder structure; the cylinder wall includes a metal cylinder wall 13 and a composite material cylinder wall 12 attached to the outside of the metal cylinder wall 13; a buffer chamber for bearing the pressure of the cylinder structure is arranged below the cylinder structure, the cylinder structure and the buffer chamber are enclosed, and a closed initial volume chamber 1 is formed by bolts 5, an end face sealing ring 4 is installed between the cylinder structure and the buffer chamber; an airbag 6 is arranged in the buffer chamber. The power unit is divided into a large power unit 2 (300mm in diameter and 400mm in height) with a larger gas volume and a small power unit 3 (150mm in diameter and 350mm in height) with a smaller gas volume. The high-pressure gas is released through the power unit and output through the gas outlet of the primary chamber 1 to provide ejection power for the high-pressure gas ejection device.

[0022] In this embodiment, a large power unit 2 and eight small power units 3 are installed in the initial volume chamber 1. The large power unit 2 is installed in the middle casing 15 of the initial volume chamber 1. The small power units 3 are evenly installed on the outside of the large power unit 2 around the large power unit 2. The gas outlet of the small power unit 3 faces the center, so that the gas can quickly fill the initial volume chamber 1 after being ejected, and ensure the stability and continuity of the pressure at the center. Flanges 25 are installed outside the gas filling ports of the large power unit 2 and the small power unit 3. The large power unit 2 is fixed to the lower end plate 14 of the initial volume chamber 1 through the threaded holes on the flange 25 and the corresponding 4 bolts 5. The small power unit 3 is fixed to the flange 25 of the large power unit 2 and the lower end plate 14 of the initial volume chamber 1 through the threaded holes on the flange 25 and the corresponding bolts 5. The lower end plate 14 is provided with a through hole at the corresponding position of the power unit installation position, so that the cylindrical structure and the buffer chamber are connected.

[0023] In this embodiment, the composite material cylinder wall 12 is obtained by impregnating carbon fiber with epoxy resin and then winding the carbon fiber with the metal cylinder wall 13 as a core mold.

[0024] In this embodiment, Figure 4 and Figure 5 As shown, the large power unit 2 includes an air chamber, which is provided with an air filling port and an air outlet; an air outlet screw cover 21 is provided outside the air outlet, and an air outlet through hole is provided inside the air outlet screw cover 21 to connect the air outlet; an air charging screw cover 26 is provided outside the air filling port, and an air charging through hole is provided on the air charging screw cover 26 to connect the air filling port; a threshold plate 22 is provided at the air outlet, and the threshold plate 22 is a steel plate loaded with an ignition device and gunpowder, and the threshold plate 22 separates the air outlet through hole from the air outlet. Sealing rings are provided between the air chamber and the air charging screw cover 26 and between the air chamber and the threshold plate 22. The air outlet through hole is a curved hole, and the end of the air outlet through hole is 90° with the axial direction of the air outlet.

[0025] In this embodiment, Figure 6 As shown, the threshold plate 22 is made of 304 stainless steel, with a pound-shaped groove in the middle, the groove width is 3mm, the groove depth is 2.5mm, and micro-explosives are loaded in the groove.

[0026] In this embodiment, the air chamber includes a metal liner 23 and a composite material layer 24 attached to the outer wall of the metal liner 23; the composite material layer 24 is obtained by impregnating carbon fiber with epoxy resin and winding it around the metal liner 23 as a core mold.

[0027] In this embodiment, the structure of the small power unit 3 is substantially the same as that of the large power unit 2, and the only difference is the size.

[0028] The high-pressure gas ejection device of this embodiment, when in use, specifically includes the following steps: The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application. The above are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, improvements and changes obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A high-pressure gas ejection device, characterized in that: The invention comprises a sealed primary chamber (1) and a plurality of power units installed in the primary chamber (1) for carrying high-pressure gas, wherein the primary chamber (1) is provided with a gas outlet, and the gas volumes of the plurality of power units are different. The high-pressure gas is released through the power units and output through the gas outlet of the primary chamber (1) to provide ejection power for a high-pressure gas ejection device.

2. The high-pressure gas ejection device according to claim 1, characterized in that: A large power unit (2) and a plurality of small power units (3) are installed in the primary volume chamber (1); the gas volume of the large power unit (2) is larger than that of the small power units (3); the large power unit (2) is installed in the middle of the primary volume chamber (1); and the small power units (3) surround the large power unit (2) and are evenly installed on the outside of the large power unit (2).

3. The high-pressure gas ejection device according to claim 2, characterized in that: The initial volume chamber (1) comprises an upper end plate (11), a cylinder wall and a lower end plate (14); the upper end plate (11), the cylinder wall and the lower end plate (14) are enclosed to form a cylinder-shaped structure; the upper end plate (11) is provided with a gas outlet; a buffer chamber for bearing the pressure of the cylinder-shaped structure is provided below the cylinder-shaped structure; the cylinder-shaped structure and the buffer chamber are enclosed to form a closed initial volume chamber (1).

4. The high-pressure gas ejection device according to claim 3, characterized in that: An air bag (6) is arranged in the buffer chamber.

5. The high-pressure gas ejection device according to claim 3, characterized in that: A flange (25) is installed outside the air filling port of each power unit. The large power unit (2) is fixed to the lower end plate (14) of the initial volume chamber (1) via the flange (25). The small power unit (3) is fixed to the flange (25) of the large power unit (2) and the lower end plate (14) of the initial volume chamber (1) via the flange (25).

6. The high-pressure gas ejection device according to claim 5, characterized in that: The lower end plate (14) is provided with a through hole at a position corresponding to the installation position of the power unit, so that the cylindrical structure and the buffer chamber are in communication.

7. The high-pressure gas ejection device according to claim 3, characterized in that: The cylinder wall comprises an inner metal cylinder wall (13) and a composite material cylinder wall (12) attached to the outside of the metal cylinder wall (13); the composite material cylinder wall (12) is obtained by impregnating at least one of carbon fiber, glass fiber, basalt fiber and aramid fiber with resin and then winding the composite material cylinder wall (13) with the metal cylinder wall (13) as a core mold.

8. The high-pressure gas ejection device according to any one of claims 1 to 7, characterized in that: The power unit comprises an air chamber, the air chamber is provided with an air filling port and an air outlet; an air outlet screw cover (21) is arranged outside the air outlet, and an air outlet through hole is arranged inside the air outlet screw cover (21) to communicate with the air outlet; a threshold plate (22) is arranged at the air outlet, the threshold plate (22) is a steel plate loaded with an ignition device and gunpowder, and the threshold plate (22) separates the air outlet through hole from the air outlet.

9. The high-pressure gas ejection device according to claim 8, characterized in that: A groove is provided on the steel plate surface of the threshold plate (22), the groove divides the middle area of ​​the threshold plate (22) into a plurality of parts, and the gunpowder is loaded in the groove.

10. The high-pressure gas ejection device according to claim 8, characterized in that: The air chamber comprises a metal liner (23) and a composite material layer (24) attached to the outer wall of the metal liner (23); the composite material layer (24) is obtained by impregnating at least one of carbon fiber, glass fiber, basalt fiber and aramid fiber with resin and winding the composite material layer (24) with the metal liner (23) as a core mold.

11. The high-pressure gas ejection device according to claim 8, characterized in that: An inflatable screw cover (26) is arranged outside the inflatable port, and an inflatable through hole is provided on the inflatable screw cover (26) and is connected to the inflatable port; sealing rings are arranged between the air chamber and the inflatable screw cover (26) and between the air chamber and the threshold plate (22).

12. A method for using the high-pressure gas ejection device according to any one of claims 3 to 11, characterized in that: The following steps are involved: S1. Fill the power unit with high-pressure gas before use. After filling, fix the power unit to a predetermined installation position of the cylindrical structure, and then install the buffer chamber under the cylindrical structure to achieve airtightness of the primary chamber (1); S2, sending a signal to the power unit, so that the high-pressure gas is ejected from the power unit to the primary chamber (1), and then mixed in the primary chamber (1) and output from the gas outlet to provide ejection power to the high-pressure gas ejection device; S3. After the excitation is completed, the buffer chamber and the power unit are removed in sequence, and after the power unit is replaced, S1 to S3 are repeated to achieve the reuse of the high-pressure gas ejection device.

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