Gas blasting trigger and fracturing device

Abstract

The invention discloses a gas blasting trigger and a fracturing device. The gas blasting trigger comprises a shell body, a filling cavity, an igniting mechanism and an inflating mechanism. The filling cavity is located inside the shell body. The shell body is connected with the igniting mechanism and the inflating mechanism in a sealed mode. Supercritical oxygen and a carbonaceous organic material or a reducible simple substance is filled in the filling cavity. The igniting mechanism comprises a heating wire, a conducting wire, a conducting wire penetrating hole and a sealed substrate. The heating wire is connected with the conducting wire. The conducting wire penetrating hole is formed in the axial part of the sealed substrate. The conducting wire wrapped through an insulating layer penetrates through the conducting wire penetrating hole. One end of the conducting wire penetrating hole is an inner thread hole. An inner sealing rubber ring is arranged at the bottom of the inner thread hole. The inner thread hole is matched with a penetrating hole screw. A penetrating hole is formed in the axis of the penetrating hole screw. The conducting wire penetrates the inner sealing rubber ring and the penetrating hole screw. The penetrating hole screw is matched with the inner thread hole to compress the inner sealing rubber ring to enable the conducting wire hole to be sealed. The gas blasting trigger has the advantages of being low in manufacturing cost, high in reacting material mixing uniformity and exothermal efficiency and good in transportation safety.

Description

technical field [0001] The invention belongs to the technical field of detonators, in particular to a gas explosion detonator and a cracker. Background technique [0002] Gas blasting technology is to use the vaporization and expansion of easily vaporized liquid or solid substances to generate high-pressure gas, which makes the surrounding medium expand to do work and cause fragmentation. It has the characteristics of no open flame, safety and high efficiency. [0003] Carbon dioxide gas blasters are typical blasting equipment in gas blasting technology, and are widely used in mining, geological exploration, cement, steel, electric power and other industries, subways and tunnels, municipal engineering, underwater engineering, and emergency rescue. [0004] The existing gas blaster mainly includes a vaporization liquid storage pipe and a heating detonator installed in the vaporization liquid storage pipe; the heating detonator ignites and generates heat to vaporize easily vap...

AI Technical Summary

Problems solved by technology

[0006] The detonator with the above structure has the following problems: 1. The thermal reactants to be filled in the detonator need to be processed by mixing, mixing, coiling or bagging, and the filling process is time-consuming. 2. During the filling process of the detonator, the oxidant and reducing agent are prone to uneven mixing, resulting in low heat release efficiency; 3. The thermal reaction material needs to be mixed and filled in advance, and the temperature during transportation is too high. It is highly likely to cause combustion or explosion, and has a greater potential safety hazard; 4. Due to the delay of the detonating material or other situations, it is easy to appear the situation of squibs, and it is impossible to judge the cause of the squibs, so it cannot be eliminated by rowing the squibs Potential safety hazard; 5. The detonation method of the existing gas blaster uses a solid activator to burn to generate high temperature, which directly conducts heat to the liquid carbon dioxide, causing the liquid carbon dioxide to gasify and expand, and the heat absorption efficiency of the liquid carbon dioxide is low; 6. The heat release of the detonator The speed is slow, the chemical reaction is insufficient, the thermal release efficiency is low, the pressure of the liquid is relatively small after gasification, and the blasting power is small; 7. After the blasting, the reactants in the detonator produce a large amount of toxic and harmful gases, such as sulfur Gases such as hydrogen, sulfur dioxide, nitric oxide, and nitrogen dioxide bring relatively large poisonous pollution to the blasting site

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