CN101986092B - Emission detonation cartridge for removing ice on power transmission line - Google Patents

Abstract

The invention relates to a launch-type detonation tube for deicing transmission lines, which changes the current method of manual removal of icing on transmission lines and towers and the high energy consumption of short-circuit current melting ice, and improves the efficiency of transmission lines and towers. The efficiency and safety of deicing work belong to the technical field of explosive charges. It includes a fairing, an outer tube, an inner tube, a charge, a delay charge and a launching device, and the launch device includes a propellant, a plug and a nozzle tube; the outer tube is a cylindrical cavity and the delay charge is installed in a hollow; the inner tube is a cylindrical cavity The charge is placed in the body cavity, the inner tube is freely loaded into the cavity of the outer tube and is located on the top of the delay drug; the top of the outer tube is a fairing, and the fairing is fixedly connected with the outer tube and the inner tube; the invention is used to remove power lines and Icing on towers; the invention replaces manual deicing; the invention ensures the safety of various power transmission facilities in equipment such as transmission lines and towers; the invention improves the efficiency of deicing work on transmission lines and towers, making transmission lines and the pylons get safe.

Description

A launch type detonation tube for deicing transmission lines

technical field

The invention relates to a launch-type detonation tube for removing icing from power lines, especially to remove icing on power lines and towers with different voltage levels, different heights and various complex terrains, changing the current manual removal of power lines The invention relates to a method for coating ice on towers and the high energy consumption of short-circuit current melting ice, improves the efficiency and safety of deicing work on transmission lines and towers, and belongs to the technical field of explosive charges.

Background technique

Ice and snow disasters have become one of the serious hidden dangers affecting the safe operation of high-voltage transmission lines. The harm of ice and snow disasters to power transmission is that when the power grid system is severely ice-covered, it will break the line and collapse the tower, resulting in a large-scale power outage accident, and the accident occurred in the severe winter season. . Therefore, ice and snow disasters are one of the serious threats faced by many national power grid systems. Since the 1940s, the threat of ice and snow disasters has been a major technical problem that the power system industry and academia have been trying to deal with for more than half a century. It can be seen that strengthening the research on key technologies for power grid ice and snow disaster mitigation has important practical significance for ensuring the safe operation of the power system.

At present, the de-icing technologies for high-voltage transmission lines mainly include thermal methods, mechanical methods, and passive methods. The thermal method is recognized as the most effective deicing technology in the world, but its deicing cost is high, and sometimes the effect is not obvious. For example, during the low temperature, rain, snow and freezing disasters in southern my country in early 2008, the thermal method of deicing in Hunan Power Grid was almost ineffective. The mechanical method is to directly use scrapers, sticks, rollers, cutters, etc. for deicing, which has low efficiency and limited scope of application. Passive methods are less effective in deicing. Therefore, the work of removing the icing on the high-voltage transmission line is mainly carried out manually at present. However, the method of manually deicing the insulators and wires is inefficient, and the safety of operators cannot be guaranteed. Therefore, the existing deicing technology for power transmission lines generally consumes a lot of energy, has low efficiency and poor safety, and there is no safe, effective and simple method.

The technical principle of the present invention is to adopt the Chinese national invention patent "A Shock Wave Removal of Icing Technology on Transmission Lines", the application number is: 200810179320.2.

Contents of the invention

The purpose of the present invention is to solve the problems of large energy consumption, low efficiency and poor safety in the existing technology for deicing transmission lines, and propose a launch type detonation tube for deicing transmission lines.

The purpose of the present invention is achieved through the following technical solutions.

A launch-type detonation charge tube for deicing transmission lines according to the present invention includes a fairing, an outer tube, an inner tube, a charging charge, a delay charge and a launching device, and the launching device includes a propellant charge, a blocking cover and a nozzle pipe; The connection relationship is: the outer tube is a cylindrical cavity, and there is a small hole at the bottom of the cavity of the outer tube; the launch device is installed at the bottom of the cavity of the outer tube; the center of the bottom end of the launch device has a narrow top and a wide bottom. The through hole is the nozzle, and the plug is located at the middle of the nozzle; propellant is installed on the top of the nozzle, one end of the fuse is fixedly connected with the propellant through the nozzle, and the other end of the fuse passes through the bottom of the outer tube. Aperture protrudes from the outer tube; the top of the launching device has a hollow cylinder, and the delay medicine is installed in the hollow of the hollow cylinder at the top of the launching device. It is connected with the propellant; the inner tube is a cylindrical cavity, and the charge is placed in the cavity of the inner tube, and the inner tube is freely loaded into the cavity of the outer tube and is located on the top of the delay charge; there is a small hole at the bottom of the cavity of the inner tube , the fuse connects the charge and the delay charge through the small hole at the bottom of the inner tube; the top of the outer tube is a fairing, and the fairing is fixedly connected with the outer tube and the inner tube;

The above fairing is made of plastic or fiberglass;

The above-mentioned outer tube is made of paper tube, plastic tube, glass fiber reinforced plastic, aluminum strip, aluminum alloy or PP-R, and its diameter and length vary with the charge inner tube;

The above-mentioned inner tube is made of paper tube, plastic tube, glass fiber reinforced plastic or PP-R, with a diameter of 20-60mm and a length of 200-600mm;

The above-mentioned charges are emulsion explosives, water gel explosives, powdery emulsion explosives, expanded ammonium nitrate explosives, ammonium oil explosives, ammonium antimony explosives, pyrotechnic powders, single-base drugs, double-base drugs or nitrocellulose, and the quality of the charge is 100 ~800g;

The above-mentioned delay medicine is a delay medicine or a delay detonator;

The above-mentioned propellant adopts black powder, single-base drug, double-base drug or composite drug, and the mass of the propellant is 2-10g;

The above-mentioned blocking cover is made of soil, plastic, glass fiber reinforced plastic, aluminum strip or aluminum alloy;

The above-mentioned nozzles are made of wood, plastic or fiberglass;

The above-mentioned launching type detonation tube can launch the detonation tube to a height of 10-100 meters, and the launching height can be adjusted freely.

The working process is:

At the power line deicing site, the launch-type detonation tube is assembled, the launch-type detonation tube and the propellant tube are assembled together, and the fixed connection between the launch-type detonation tube and the propellant tube is realized through threads. After the launch-type detonation tube is laid, the first mechanical safety is removed, and the mechanical timer starts to work. The launch-type detonation tube is still in the state of two-stage short-circuit insurance to ensure the safety of personnel evacuation. After dozens of minutes of mechanical safety delay, release the short-circuit of the mechanical switch of the launch-type detonation tube, connect the main power supply, and power on the circuit. At this time, the electronic switch still makes the launch-type detonation tube in the short-circuit insurance state. The third insurance is released through the remote control launch command, even if the electronic short-circuit switch is disconnected, the launch-type detonation tube is in the working standby state. After the detonation safety device receives the detonation command, it controls the electronic control switch to close, and outputs an ignition control signal to drive the launch-type detonation tube to ignite reliably.

Beneficial effect

1) The present invention can be used to remove icing on transmission lines and towers with different voltage levels, different heights and various complex terrains. The types of icing are A-type rain rime, B-type mixed rime, C-type light rime, D-type hoarfrost, E-type snow and fog, etc.;

2) The present invention can replace manual deicing and avoid the danger of manual deicing;

3) The present invention ensures the safety of various power transmission facilities in equipment such as transmission lines and towers while removing the icing on transmission lines and towers;

4) The present invention improves the efficiency of deicing work on the transmission line and the tower, so that the transmission line and the tower are safe.

Description of drawings

Fig. 1 is the schematic diagram of launching type detonation cartridge of the present invention;

Wherein, 1-fairing cover, 2-outer pipe, 3-inner pipe, 4-charge, 5-delay charge, 6-propellant charge, 7-blocking cover, 8-nozzle pipe.

Detailed ways

A launch-type detonation charge tube for removing icing from transmission lines, as shown in Figure 1, comprising a fairing 1, an outer tube 2, an inner tube 3, a charging charge 4, a delay charge 5 and a launching device, and the launching device includes a propelling charge 6. Blocking cover 7 and nozzle pipe 8; the connection relationship is as follows: the outer tube 2 is a cylindrical cavity, and the bottom end of the cavity of the outer tube 2 has a small hole; a launching device is installed at the bottom end of the cavity of the outer tube 2; The central position of the bottom of the launching device has a through hole with a narrow top and a wide bottom as the nozzle 8, and the plugging cover 7 is located at the middle waist position of the nozzle 8; the top of the nozzle 8 is equipped with propellant 6, and one end of the fuse passes The tube 8 is fixedly connected with the propellant, and the other end of the fuse stretches out of the outer tube through the small hole at the bottom of the outer tube 2; the top of the launcher has a hollow cylinder, and the delay charge 5 is installed in the hollow of the hollow cylinder at the top of the launcher. , the top of the launching device has a small hole, and the fuse connects the delay charge 5 with the propellant charge 6 through the small hole at the top of the launching device; the inner tube 3 is a cylindrical cavity, and the charge 4 is placed in the cavity of the inner tube 3, and The tube 3 is freely loaded into the cavity of the outer tube 2 and is located above the delay charge 5; there is a small hole at the bottom of the cavity of the inner tube 3, and the fuse connects the charge 4 and the delay charge through the small hole at the bottom of the inner tube 3. 5 connection; the top of the outer tube 2 is a fairing 1, and the fairing 1 is fixedly connected with the outer tube 2 and the inner tube 3;

Above-mentioned fairing 1 adopts PVC to make;

The above-mentioned outer tube 2 is made of glass fiber reinforced plastic;

The above-mentioned inner pipe 3 is made of PVC, with a diameter of 36.5 mm mm and a length of 422 mm;

Above-mentioned charge 4 adopts pyrotechnic powder, and the quality of charge 4 is 200g;

The above delay drug 5 is a 1.5-2s delay drug;

Above-mentioned propellant 6 adopts No. 4 black powder, and the quality of propellant 6 is 5g;

The above-mentioned blocking cover 7 is made of aluminum strip;

Above-mentioned spray pipe 8 adopts the manufacture of cloth bakelite;

The launch-type detonation tube prepared by using the above materials, using a simple PP-R launch tube to launch the launch-type detonation tube to a height of about 50m, to a distance of 2m from the 50kV transmission line covered with mixed rime, and the charge will detonate , the deicing effect is 50%, without any damage to the transmission line.

Claims (10)

1. A launch-type detonation charge tube for removing icing from transmission lines, including a fairing (1), an outer tube (2), an inner tube (3), a charging charge (4), a delay charge (5) and a launching device , the launching device comprises propellant powder (6), plugging cover (7) and nozzle pipe (8); It is characterized in that: The outer tube (2) is a cylindrical cavity, and the bottom of the cavity of the outer tube (2) has a small hole; the launcher is installed at the bottom of the cavity of the outer tube (2); the center of the bottom of the launcher has a The upper narrow and lower wide through hole is the nozzle pipe (8), and the plugging cover (7) is located at the middle waist position of the nozzle pipe (8); the propellant (6) is installed on the top of the nozzle pipe (8), and one end of the fuse passes through The nozzle (8) is fixedly connected with the propellant, and the other end of the fuse stretches out of the outer tube through the small hole at the bottom of the outer tube (2); the top of the launching device has a hollow cylinder, and the hollow cylinder at the top of the launching device The delay charge (5) is installed inside, and there is a small hole at the top of the launching device, and the fuse connects the delay charge (5) and the propellant charge (6) through the small hole at the top of the launch device; the inner tube (3) is a cylindrical cavity , the charge (4) is placed in the cavity of the inner tube (3), the inner tube (3) is freely loaded into the cavity of the outer tube (2) and is positioned on the top of the delay medicine (5); the cavity of the inner tube (3) There is a small hole at the bottom of the body, and the fuse connects the charge (4) and the delay charge (5) through the small hole at the bottom of the inner tube (3); the top of the outer tube (2) is a fairing (1), and the fairing (1) is fixedly connected with the outer pipe (2) and the inner pipe (3). 2. A launch-type detonation tube for deicing transmission lines according to claim 1, characterized in that: the fairing (1) is made of plastic. 3. according to a kind of emission type detonation tube that removes the icing of transmission line shown in claim 1, it is characterized in that: outer tube (2) adopts paper tube, plastic tube, aluminum strip or aluminum alloy to make, and its diameter is the same as The length varies with the charge inner tube. 4. A launch-type detonation tube for deicing transmission lines according to claim 1, characterized in that: the inner tube (3) is made of paper tube or plastic tube, with a diameter of 20-60 mm and a length of 200 mm. ~600mm. 5. according to a kind of launch-type detonation tube that removes the icing of transmission line shown in claim 1, it is characterized in that: charge (4) adopts emulsion explosive, water-gel explosive, expanded ammonium nitrate explosive, ammonium oil explosive, Ammonium antimony explosive, pyrotechnic powder, single-base drug, double-base drug or nitrocellulose, the mass of charge (4) is 100-800g. 6. A launch type detonation charge tube for deicing transmission lines according to claim 1, characterized in that the delay charge (5) is a delay detonator. 7. A kind of launch-type detonation charge pipe for removing icing on transmission line shown in claim 1, characterized in that: the propellant (6) adopts black powder, single-base charge, double-base charge or compound charge, and the propellant charge is (6) has a mass of 2 to 10 g. 8. A launch-type detonation tube for deicing transmission lines according to claim 1, characterized in that: the plugging cover (7) is made of soil, plastic, aluminum strip or aluminum alloy. 9. A launch-type detonation tube for deicing transmission lines according to claim 1, characterized in that: the nozzle (8) is made of wood or plastic. 10. A launch-type detonation tube for deicing transmission lines according to claim 1, characterized in that: the launch-type detonation tube can launch the detonation tube to a height of 10-100 meters, and can Freely adjust launch height.

Images