Liquid oxygen cartridge bag detonating device

Abstract

The utility model discloses a liquid oxygen cartridge detonating device, which relates to the technical field of blasting and comprises a plastic pipe, a plugging cover, an exhaust pipe, an oxygen conveying pipe, an absorbent and an ignition device. The plastic pipe is provided with a containing cavity, one end of the plastic pipe is blocked, and an opening is formed in one end of the plastic pipe; the plugging cover is detachably fixed at the opening, and the plugging cover can plug the opening; the ignition device comprises an ignition head and an excitation wire; the excitation wire is connected with the ignition head; the tail end of the exhaust pipe and the tail end of the oxygen conveying pipe are both located in the containing cavity, and the ignition head and the absorbent are both arranged in the containing cavity. The oxygen delivery pipe can deliver liquid oxygen into the accommodating cavity; and penetrating holes through which the exhaust pipe, the oxygen catheter and the excitation wire penetrate are formed in the plugging cover. The whole weight can be reduced, transportation and operation are convenient, the corrosion resistance is good, the device can be suitable for a humid or corrosive environment, and the machining cost is low.

Description

Technical Field

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

[0002] In traditional detonation devices, steel pipes are often used for the encapsulation and protection of liquid oxygen explosive packages, mainly because of their high strength and pressure resistance.

[0003] However, the high density of steel pipes increases the overall weight of the detonation device, making transportation and operation inconvenient; in humid or acidic environments, steel pipes are prone to corrosion, affecting the safety and reliability of the device; moreover, the processing of steel pipes requires complex welding and machining processes, and the production and processing of steel pipes consumes a lot of energy, increasing manufacturing costs. Utility Model Content

[0004] The purpose of this invention is to provide a liquid oxygen charge detonation device to solve the problems existing in the prior art, reduce the overall weight, facilitate transportation and operation, have good corrosion resistance, be suitable for humid or corrosive environments, and have low processing costs.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a liquid oxygen charge initiation device, including a plastic tube, a sealing cap, an exhaust pipe, an oxygen delivery pipe, an absorbent, and an ignition device. The plastic tube has a cavity, one end of the plastic tube is sealed, and the other end of the plastic tube has an opening. The sealing cap is detachably fixed to the opening and can seal the opening. The ignition device includes an ignition head and an ignition wire, and the ignition wire is connected to the ignition head. The ends of the exhaust pipe and the oxygen delivery pipe are both located within the cavity, and the ignition head and the absorbent are both disposed within the cavity. The oxygen delivery pipe can input liquid oxygen into the cavity. The sealing cap is provided with a through hole for the exhaust pipe, the oxygen delivery pipe, and the ignition wire to pass through.

[0007] Preferably, each of the sealing caps is provided with an indicator corresponding to the position of each of the through holes, and each of the indicators is used to indicate the through hole corresponding to the exhaust pipe, the oxygen supply pipe and the excitation wire.

[0008] Preferably, the outer wall of the plastic tube is provided with at least one slit communicating with the accommodating cavity.

[0009] Preferably, when the axis of the plastic tube is in a vertical position, the length extension direction of the slit has an inclined angle with the horizontal plane.

[0010] Preferably, the width of the cut is ≤ 1 / 10 of the length of the cut.

[0011] Preferably, the included angle of inclination is 30° to 60°.

[0012] Preferably, when the number of slits is greater than 1, the minimum distance between two adjacent slits is 1 / 5 to 1 / 2 of the length of the plastic tube along its own axis.

[0013] Preferably, the length of the slit is 1 / 4 to 1 / 2 of the outer diameter of the plastic tube.

[0014] Preferably, a PE soft film is fixedly provided on the inner sidewall and the inner bottom of the accommodating cavity.

[0015] Preferably, the PE film is fixed to the inner wall and bottom of the accommodating cavity by adhesive.

[0016] The present invention achieves the following technical advantages over the prior art:

[0017] The liquid oxygen charge detonator provided by this utility model uses a plastic tube instead of the original steel tube. The density of the plastic tube is much lower than that of the steel tube, which significantly reduces the weight of the detonator, facilitating transportation and operation. Furthermore, the plastic tube has excellent chemical corrosion resistance, making it suitable for humid or corrosive environments. The plastic tube can be efficiently produced through injection molding and other processes, resulting in low processing costs and low energy consumption during production and use. The plastic tube is also less prone to breakage under impact, providing better protection for the liquid oxygen charge. The overall structure is simple, installation is convenient, and the sealing cap can be quickly installed and replaced, allowing operators to quickly complete the installation or replacement of the sealing cap. Replacement; Due to the perforation on the sealing cap, the positions of the oxygen delivery tube, exhaust tube, and ignition wire can be fixed to ensure that they do not loosen or shift during use; The sealing cap can prevent liquid oxygen from accidentally spraying out during filling or use, protecting operators from frostbite or chemical burns; The sealing cap can also prevent external dust, moisture, or other impurities from entering the medicine pack. Although it cannot completely seal, it can reduce the contamination of internal components (such as ignition head, absorbent, etc.) by the external environment; The sealing cap can also provide a certain degree of physical protection for the internal components of the plastic tube, preventing damage from collisions or vibrations during transportation or operation. Attached Figure Description

[0018] 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.

[0019] Figure 1 A schematic diagram of the overall structure of the liquid oxygen charge initiation device provided by this utility model;

[0020] Figure 2 A schematic diagram of the slit on the plastic tube in the liquid oxygen charge initiation device provided by this utility model;

[0021] Figure 3 A schematic diagram showing the positional correspondence between the PE membrane inside the plastic tube and the inner wall of the plastic tube in the liquid oxygen explosive charge initiation device provided by this utility model.

[0022] In the picture:

[0023] 10-Plastic pipe; 11-Slit; 12-Inclined angle;

[0024] 20 - Exhaust pipe;

[0025] 30 - Oxygen delivery tube;

[0026] 40 - Ignition head; 41 - Excitation wire;

[0027] 50-PE soft film. Detailed Implementation

[0028] 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.

[0029] The purpose of this invention is to provide a liquid oxygen charge detonation device to solve the problems existing in the prior art, reduce the overall weight, facilitate transportation and operation, have good corrosion resistance, be suitable for humid or corrosive environments, and have low processing costs.

[0030] 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.

[0031] Example 1

[0032] This embodiment provides a liquid oxygen charge initiation device, such as... Figures 1-3As shown, the device includes a plastic tube 10, a sealing cap, an exhaust pipe 20, an oxygen delivery pipe 30, an absorbent, and an ignition device. The plastic tube 10 has a cavity, one end of which is sealed, and the other end has an opening. The sealing cap is detachably fixed to the opening and can seal the opening. The ignition device includes an ignition head 40 and an ignition wire 41, which is connected to the ignition head 40. The ends of the exhaust pipe 20 and the oxygen delivery pipe 30 are both located within the cavity, and the ignition head 40 and the absorbent are both located within the cavity. The oxygen delivery pipe 30 can input liquid oxygen into the cavity. The sealing cap has a through hole for the exhaust pipe 20, the oxygen delivery pipe 30, and the ignition wire 41 to pass through.

[0033] By replacing the original steel pipe with a plastic pipe 10, the density of the plastic pipe 10 is much lower than that of the steel pipe, which can significantly reduce the weight of the detonating device, facilitating transportation and operation; moreover, the plastic pipe 10 has good chemical corrosion resistance, making it suitable for humid or corrosive environments; the plastic pipe 10 can be efficiently produced through injection molding, foundation and other processes, with low processing costs, and the plastic pipe 10 material has low energy consumption during production and use; the plastic pipe 10 is not easily broken under impact, which can better protect the liquid oxygen charge; the overall structure is simple, easy to install, and the sealing cap can be quickly installed and replaced, allowing operators to quickly complete the installation or replacement of the sealing cap; due to the sealing... The perforated holes on the cap secure the oxygen delivery tube 30, exhaust tube 20, and excitation wire 41, ensuring they do not loosen or shift during use. The cap prevents liquid oxygen from accidentally spraying out during filling or use, protecting operators from frostbite or chemical burns. Furthermore, the cap prevents external dust, moisture, or other impurities from entering the pack. While not completely sealing it, it reduces external contamination of internal components (such as the ignition head 40 and absorbent). The cap also provides physical protection for the internal components of the plastic tube 10, preventing damage from collisions or vibrations during transport or operation.

[0034] The following are the instructions regarding the installation of the sealing cap:

[0035] Specifically, the sealing cap has a sealing head and a limiting cap. The sealing head is coaxially fixed to one end of the limiting cap. The outer diameter of the sealing head is consistent with the inner diameter of the opening of the plastic tube 10, and the outer diameter of the limiting cap is consistent with the outer diameter of the plastic tube 10 (the outer diameter of the limiting cap can also be slightly larger than the outer diameter of the plastic tube 10, which can be set as needed).

[0036] Specifically, to enhance the sealing effect of the sealing cap on the opening, a sealing ring groove can be provided on the circumferential side wall of the sealing head, and a sealing ring can be fitted inside the sealing ring groove.

[0037] In the optional embodiments of this example, a preferred embodiment is that the sealing cap is provided with markers corresponding to the positions of each through hole. Each marker is used to indicate the through hole corresponding to the exhaust pipe 20, oxygen supply pipe 30, and excitation wire 41. The markers indicate the correct installation positions of the exhaust pipe 20, oxygen supply pipe 30, and excitation wire 41.

[0038] Specifically, the markings can be written text, such as "exhaust pipe 20 corresponding port", or numbers, or other markings that make it easy for the operator to know the installation instructions for each hole and pipe.

[0039] Other related structural settings for the plastic tube 10 are described below:

[0040] Specifically, the plastic material of plastic pipe 10 meets the following conditions:

[0041] 1. Its density is much lower than that of steel pipes, significantly reducing the weight of the detonation device;

[0042] 2. Choose recyclable plastic materials to reduce environmental impact and improve economic efficiency;

[0043] 3. Select specially treated conductive plastics or static dissipation materials to prevent static electricity from causing liquid oxygen explosions;

[0044] 4. Liquid oxygen has an extremely low temperature, so the plastic tube 10 must have good low-temperature resistance to prevent it from becoming brittle or breaking in low-temperature environments;

[0045] 5. Liquid oxygen has strong oxidizing properties, and the plastic tube 10 must be able to resist the chemical corrosion of liquid oxygen to avoid material degradation or aging.

[0046] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 2 As shown, at least one slit 11 communicating with the accommodating cavity is provided on the outer wall of the plastic tube 10. The slit 11 can, to some extent, facilitate heat dissipation and reduce weight, and enhance the flexibility of the plastic tube 10.

[0047] Specifically, the slit 11 has the following four characteristics:

[0048] First, weight reduction and air permeability: The air seal design can reduce the weight of the plastic tube 10, while allowing some gas or liquid to be discharged through the slit 11 when necessary, avoiding damage to the device due to excessive internal pressure (due to the microporous permeability of the PE soft film 50, a very small amount will be discharged when the internal temperature and pressure rise, to prevent excessive pressure, and the liquid may be discharged due to capillary action, which is the discharge under extreme conditions).

[0049] Second, it enhances heat dissipation: the slit 11 can help the plastic tube 10 dissipate heat well, which helps reduce the heat generated by the device during operation and prevents the plastic tube 10 from deforming or even being damaged due to overheating.

[0050] Third, flexibility and practicality: The slit design 11 can make the plastic pipe 10 more flexible and adaptable to a certain extent, and better adapt to different installation environments and operating conditions.

[0051] Fourth, visual indication: The cut 11 can serve as a visual indication, making it convenient for operators to inspect the inside of the plastic tube 10 and promptly identify potential problems.

[0052] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 2 As shown, when the axis of the plastic tube 10 is in a vertical position, the length extension direction of the slit 11 has an inclined angle 12 with the horizontal plane.

[0053] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 2 As shown, the included angle 12 is 30° to 60°. Preferably, it is 45° to 60°.

[0054] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 2 As shown, the width of the slit 11 is ≤ 1 / 10 of the length of the slit 11. A smaller slit 11 width can reduce the risk of external impurities entering the device.

[0055] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 2 As shown, the length of the slit 11 is 1 / 4 to 1 / 2 of the outer diameter of the plastic tube 10. For example, the length of the slit 11 is 1 / 2 of the diameter of the plastic tube 10. If the slit 11 is too long, it will weaken the overall strength of the plastic tube 10 too much, while if it is too short, it will not be able to effectively achieve the functions of air permeability and heat dissipation.

[0056] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 2 As shown, when the number of slits 11 is greater than 1, the minimum distance between two adjacent slits 11 is 1 / 5 to 1 / 2 of the length of the plastic tube 10 along its own axis. Figure 2 As shown, when there are 4 slits 11, and they are symmetrically distributed in pairs, the minimum distance between two adjacent slits 11 is 1 / 5 of the length of the plastic tube 10 along its own axis.

[0057] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 3 As shown, PE soft film 50 is fixedly installed on the inner side wall and the inner bottom of the cavity.

[0058] Specifically, the material of the PE PVC membrane 50 meets the requirements of low temperature resistance and chemical corrosion resistance. At the same time, its adhesion or compatibility with the plastic pipe 10 needs to be considered to prevent the PE PVC membrane 50 from falling off during use.

[0059] Specifically, the appropriate thickness of the PE membrane 50 can be selected according to actual needs. If higher sealing and buffering effects are required, the thickness can be increased appropriately. However, it should be noted that the PE membrane 50 will affect the heat exchange efficiency between liquid oxygen and the outside world, causing changes in the temperature of liquid oxygen and thus affecting the oxygen delivery efficiency.

[0060] In the optional solutions of this embodiment, it is more preferred that the PE soft film 50 is fixed to the inner wall and inner bottom of the accommodating cavity by adhesive.

[0061] Specifically, the adhesive material used cannot react with liquid oxygen and can maintain good adhesion of the PE film 50 even at low temperatures.

[0062] Specifically, the functions of PE soft film 50 are as follows:

[0063] 1. Enhanced sealing: The PE membrane 50 has good flexibility and sealing properties, which can effectively prevent liquid oxygen or other chemicals from leaking from the inside of the plastic tube 10, further improving the safety of the device;

[0064] 2. Reduced friction: The surface of PE soft membrane 50 is relatively smooth, which can reduce the friction between liquid oxygen and the pipe wall during flow, reduce energy loss, and improve oxygen delivery efficiency;

[0065] 3. Chemical compatibility: PE soft film 50 itself has good chemical stability and can resist the chemical corrosion of liquid oxygen. At the same time, it avoids direct contact between the plastic pipe 10 material and liquid oxygen, further reducing the risk of material degradation.

[0066] 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 charge initiator device, characterized by: Includes plastic tubes, sealing caps, exhaust pipes, oxygen supply pipes, absorbent, and ignition devices; The plastic tube has a cavity, one end of the plastic tube is sealed, and one end of the plastic tube has an opening; The sealing cap can be detachably fixed to the opening, and the sealing cap can seal the opening; The ignition device includes an ignition head and an excitation wire, wherein the excitation wire is connected to the ignition head; The ends of the exhaust pipe and the oxygen supply pipe are both located within the accommodating cavity, and the ignition head and the absorbent are both disposed within the accommodating cavity; the oxygen supply pipe can input liquid oxygen into the accommodating cavity; The sealing cap is provided with through holes for the exhaust pipe, the oxygen supply pipe and the excitation wire to pass through; At least one slit communicating with the accommodating cavity is provided on the outer wall of the plastic tube. PE soft film is fixedly installed on the inner wall and the inner bottom of the accommodating cavity.

2. The liquid oxygen charge initiator of claim 1, wherein: Each of the sealing caps is provided with a marker corresponding to the position of each of the through holes. Each marker is used to indicate the through hole corresponding to the exhaust pipe, the oxygen supply pipe and the excitation wire.

3. The liquid oxygen charge initiator of claim 1, wherein: When the axis of the plastic tube is in a vertical position, the length extension direction of the slit has an inclined angle with the horizontal plane.

4. The liquid oxygen charge initiator of claim 3, wherein: The width of the cut is less than or equal to 1 / 10 of the length of the cut.

5. The liquid oxygen charge initiator of claim 3, wherein: The included angle of inclination is 30° to 60°.

6. The liquid oxygen charge initiator of claim 3, wherein: When the number of slits is greater than 1, the minimum distance between two adjacent slits is 1 / 5 to 1 / 2 of the length of the plastic tube along its own axis.

7. The liquid oxygen charge initiation device according to claim 1, characterized in that: The length of the slit is 1 / 4 to 1 / 2 of the outer diameter of the plastic tube.

8. The liquid oxygen charge initiator of claim 1, wherein: The PE film is fixed to the inner wall and bottom of the accommodating cavity by adhesive.

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