Liquid oxygen explosive device

Abstract

The utility model discloses a liquid oxygen explosive device, and particularly relates to the technical field of explosive materials, the liquid oxygen explosive device comprises a wrapping layer, a solid combustible material, a tungsten filament ignition head, an oxygenating conduit and an exhaust pipe, the wrapping layer is provided with a closed space, the solid combustible material is filled in the closed space, one end of the tungsten filament ignition head is attached outside the solid combustible material, and the other end of the tungsten filament ignition head is attached outside the oxygenating conduit. The other end of the tungsten filament ignition head extends out of the wrapping layer to be connected with an external pulse power source through a wire, one ends of the oxygenating guide pipe and the exhaust pipe are inserted into the solid combustible materials respectively, the other end of the oxygenating guide pipe extends out of the wrapping layer to be connected with a liquid oxygen storage tank, and the other end of the exhaust pipe extends out of the wrapping layer to be communicated with the outside. The utility model has the advantages of strong high temperature resistance and fast response speed, can still work stably under severe working conditions such as moisture and high pressure, and has higher reliability.

Description

Technical Field

[0001] This utility model relates to the field of explosives technology, and in particular to a liquid oxygen explosive device. Background Technology

[0002] Traditional liquid oxygen explosive charges typically use resistance wires or heating bridge wires as ignition heads, igniting the explosive by heating it with an electric current. However, traditional resistance wires (such as nickel-chromium alloys) have insufficient high-temperature resistance and are prone to oxidation or melting at high temperatures, leading to ignition failure. The ignition head material has a low heating rate, resulting in a long detonation delay time. Moreover, it is prone to performance fluctuations and poor stability under extreme environments (such as high humidity and high pressure).

[0003] Therefore, there is an urgent need for a more reliable and efficient ignition device to improve the detonation performance of liquid oxygen explosive charges. Utility Model Content

[0004] The purpose of this invention is to provide a liquid oxygen explosive device to solve the problems existing in the prior art. It has strong high temperature resistance, fast response speed, and can still work stably under harsh working conditions such as humidity and high pressure, and has high reliability.

[0005] Low cost: simple structure, easy to mass-produce.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a liquid oxygen explosive device, including a wrapping layer, a solid combustible material, a tungsten filament igniter, an oxygen filling conduit, and an exhaust pipe. The wrapping layer has a closed space, and the solid combustible material fills the closed space. One end of the tungsten filament igniter is attached to the outside of the solid combustible material, and the other end of the tungsten filament igniter extends out of the wrapping layer and is connected to an external pulse power supply via a wire. One end of the oxygen filling conduit and the exhaust pipe are respectively inserted into the solid combustible material. The other end of the oxygen filling conduit extends out of the wrapping layer for connection to a liquid oxygen storage tank, and the other end of the exhaust pipe extends out of the wrapping layer for communication with the outside.

[0008] Preferably, the tungsten filament igniter is uniformly spirally wound around the outer wall of the solid combustible material along its length.

[0009] Preferably, the material of the wrapping layer is a PE soft film.

[0010] Preferably, one end of the oxygen supply conduit extends into the bottom of the solid combustible material.

[0011] Preferably, one end of the exhaust pipe extends into the middle of the solid combustible material.

[0012] Preferably, the sidewall of the end of the oxygen-filling conduit that extends into the solid combustible material is provided with drainage holes evenly distributed.

[0013] Preferably, the diameter of the tungsten filament igniter is 0.05mm-0.2mm.

[0014] Preferably, the solid combustible material is a solid combustible material made from one or more of paper scraps and cotton.

[0015] Preferably, the oxygen supply conduit is made of PVC tubing.

[0016] Preferably, the exhaust pipe is made of PVC flexible hose.

[0017] The present invention achieves the following technical advantages over the prior art:

[0018] This invention provides a liquid oxygen explosive device that replaces the traditional ignition head material with a tungsten filament ignition head. Tungsten has a melting point of 3422℃, far exceeding that of traditional materials. This means the tungsten filament ignition head can withstand the high temperatures generated during ignition and is less prone to melting or deformation at high temperatures. This ensures the stability and reliability of the ignition head under repeated use or prolonged high-temperature environments, reducing the probability of ignition failure due to ignition head damage. Tungsten filament has low resistivity and can heat up to the ignition temperature within milliseconds after being energized, achieving rapid response. Tungsten has good corrosion and oxidation resistance at room temperature and can resist the erosion of strong oxidizers such as liquid oxygen. In the liquid oxygen explosive device, the tungsten filament ignition head can maintain its stable performance for a long time and will not be rapidly corroded or oxidized due to contact with liquid oxygen, extending the service life of the ignition head and reducing safety hazards caused by aging of the ignition head. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a liquid oxygen explosive device.

[0021] Figure 2 This is a schematic diagram of the oxygen supply catheter.

[0022] In the diagram: 1-Coating layer; 2-Solid combustible material; 3-Tungsten filament igniter; 4-Oxygen filling conduit; 5-Exhaust pipe; 6-Wire; 7-Drain hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The purpose of this invention is to provide a liquid oxygen explosive device to solve the problems existing in the prior art. It has strong high temperature resistance, fast response speed, and can still work stably under harsh working conditions such as humidity and high pressure, and has high reliability.

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] This utility model provides a liquid oxygen explosive device, such as... Figure 1As shown, it includes a wrapping layer 1, a solid combustible material 2, a tungsten filament igniter head 3, an oxygen filling conduit 4, and an exhaust pipe 5. The wrapping layer 1 has a closed space, and the solid combustible material 2 is filled in the closed space. One end of the tungsten filament igniter head 3 is attached to the outside of the solid combustible material 2, and the other end of the tungsten filament igniter head 3 extends out of the wrapping layer 1 and is connected to an external pulse power supply through a wire 6. The wire 6 is covered with a high-temperature resistant insulating layer and is led out to the external pulse power supply through a sealed interface. One end of the oxygen filling conduit 4 and the exhaust pipe 5 are respectively inserted into the solid combustible material 2. The other end of the oxygen filling conduit 4 extends out of the wrapping layer 1 for connection to a liquid oxygen storage tank, and the other end of the exhaust pipe 5 extends out of the wrapping layer 1 for communication with the outside. By replacing the traditional ignition head material with a tungsten filament ignition head 3, the melting point of tungsten, reaching 3422℃, is significantly higher than that of traditional materials. This means the tungsten filament ignition head 3 can withstand the high temperatures generated during ignition and is less prone to melting or deformation at high temperatures. This ensures the stability and reliability of the ignition head under repeated use or prolonged high-temperature environments, reducing the probability of ignition failure due to ignition head damage. Tungsten filament has low resistivity and can heat up to the ignition temperature within milliseconds after being energized, achieving rapid response. Tungsten has good corrosion and oxidation resistance at room temperature and can resist the erosion of strong oxidizers such as liquid oxygen. In liquid oxygen explosive devices, the tungsten filament ignition head 3 can maintain its stable performance for a long time and will not be rapidly corroded or oxidized due to contact with liquid oxygen, extending the service life of the ignition head and reducing safety hazards caused by aging of the ignition head. Furthermore, the other end of the tungsten filament ignition head 3 extends out of the wrapping layer 1 and is connected to an external pulse power supply via a wire 6. The voltage and current output by the pulse power supply are relatively stable, effectively avoiding voltage fluctuations and surge currents that may occur with traditional power supplies. Stable electrical stress keeps the tungsten filament igniter 3 in a relatively mild electrical environment, reducing problems such as localized overheating of the tungsten filament and uneven electric field caused by electrical shock, thus lowering the risk of tungsten filament damage. When liquid oxygen is introduced into the enclosed space through the oxygen filling conduit 4, the liquid oxygen easily absorbs heat and vaporizes at room temperature. The exhaust pipe 5 can discharge the oxygen that has absorbed heat and vaporized in the enclosed space, preventing excessive pressure inside the pipe due to oxygen vaporization and avoiding danger. At the same time, it can also allow more liquid oxygen to be injected into the enclosed space, ensuring the detonation effect.

[0027] In a further preferred embodiment of this invention, the tungsten filament igniter 3 is uniformly spirally wound around the outer wall of the solid combustible material 2 along its length. This uniform spiral winding of the tungsten filament igniter 3 around the outer wall of the solid combustible material 2 ensures that all parts of the solid combustible material 2 are ignited simultaneously, avoiding localized pre-ignition and uneven heat distribution. This allows the solid combustible material 2 to participate in the combustion reaction synchronously as a whole, releasing a large amount of energy in a short time, effectively improving combustion efficiency, and making the explosion effect more stable and intense.

[0028] In a further preferred embodiment of this utility model, the material of the wrapping layer 1 is a PE soft film.

[0029] A further preferred embodiment of this utility model is, as follows: Figure 2 As shown, one end of the oxygen-filling conduit 4 extends into the bottom of the solid combustible material 2, and drainage holes 7 are evenly distributed on the side wall of the end of the oxygen-filling conduit 4 that extends into the solid combustible material 2. This ensures that the solid combustible material 2 can be evenly wetted by liquid oxygen, thereby improving the blasting effect.

[0030] In a further preferred embodiment of this utility model, one end of the exhaust pipe 5 that extends into the solid combustible material 2 extends into the middle of the solid combustible material 2.

[0031] In a further preferred embodiment of this invention, the diameter of the tungsten filament igniter 3 is 0.05mm-0.2mm. In practical applications, the length and diameter of the tungsten filament can be adjusted according to the size of the medicine pack.

[0032] In a further preferred embodiment of this invention, the solid combustible material 2 is made from one or more of paper scraps and cotton. As an absorbent and buffering material, the solid combustible material 2 can reduce the impact of external impacts on the ignition structure.

[0033] In a further preferred embodiment of this utility model, the oxygen supply conduit 4 is made of PVC hose, and the exhaust pipe 5 is made of PVC hose.

[0034] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A liquid oxygen explosive device, characterized by: The device includes a wrapping layer, a solid combustible material, a tungsten filament igniter, an oxygen-filling conduit, and an exhaust pipe. The wrapping layer has a closed space, and the solid combustible material fills the closed space. One end of the tungsten filament igniter is attached to the outside of the solid combustible material, and the other end of the tungsten filament igniter extends out of the wrapping layer and is connected to an external pulse power supply via a wire. One end of the oxygen-filling conduit and the exhaust pipe are respectively inserted into the solid combustible material. The other end of the oxygen-filling conduit extends out of the wrapping layer for connection to a liquid oxygen storage tank, and the other end of the exhaust pipe extends out of the wrapping layer for communication with the outside.

2. The liquid oxygen explosive device of claim 1, wherein: The tungsten filament igniter is uniformly spirally wound around the outer wall of the solid combustible material along its length.

3. The liquid oxygen explosive device of claim 1, wherein: The material of the wrapping layer is PE soft film.

4. The liquid oxygen explosive device of claim 1, wherein: One end of the oxygen supply conduit extends into the bottom of the solid combustible material.

5. The liquid oxygen explosive device of claim 1, wherein: One end of the exhaust pipe extends into the solid combustible material and into the middle of the solid combustible material.

6. The liquid oxygen explosive device of claim 4, wherein: The oxygen supply conduit has evenly distributed drainage holes on the side wall of the end that extends into the solid combustible material.

7. The liquid oxygen explosive device of claim 1, wherein: The diameter of the tungsten filament igniter is 0.05mm-0.2mm.

8. The liquid oxygen explosive device of claim 1, wherein: The solid combustible material is a solid combustible material made from one or more of paper scraps and cotton.

9. The liquid oxygen explosive device of claim 1, wherein: The oxygen supply tubing is made of PVC flexible tubing.

10. The liquid oxygen explosive device of claim 1, wherein: The exhaust pipe is made of PVC flexible hose.

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