Helicopter fire extinguishing system

Abstract

The invention provides a helicopter fire extinguishing system. The helicopter fire extinguishing system comprises a helicopter main body (10), and a water tank (20) and a fire extinguishing agent box(30) arranged on the helicopter main body (10); the fire extinguishing agent box (30) accommodates aerial anti-evaporation fire extinguishing agents for condensing water molecules and increasing waterdrop cohesive force to prevent early dispersion and evaporation of fire extinguishing water agents; the fire extinguishing water agents are near a fire field; under high-temperature effect of the fire field, the cohesive force is reduced; when the evaporation quantity is increased through dispersion of the water agents for quick cooling, the insulation performance is guaranteed; the fire extinguishing agent box (30) communicates with the water tank (20) for injecting the aerial anti-evaporation fire extinguishing agents into the water tank (20); and the water tank (20) is provided with a fireextinguishing water gun (21) for spraying water to fire points to extinguish fire. Through feeding of the aerial anti-evaporation fire extinguishing agents, the aerial dispersion is prevented, and the evaporation quantity is increased; and in a low-altitude area near the fire field, the fire extinguishing fire agents are quickly dispersed as fire extinguishing water drops, and air gaps are formedbetween the water drops to improve the insulation performance to achieve the purposes of efficient cooling and electrified fire extinguishing.

Description

technical field [0001] The invention relates to the technical field of mountain fire prevention for power transmission lines, in particular to a helicopter fire extinguishing system. Background technique [0002] Wildfire is a natural disaster that occurs in many countries. In recent years, UHV AC / DC transmission lines have experienced many trips and outages due to wildfires, and wildfires have become a major hazard that seriously threatens the power grid. [0003] The mountain fires on transmission lines are multi-faceted and spread rapidly, and the time limit for prevention and control is extremely high. At present, research has been carried out in China on the prevention and control of mountain fires on transmission lines, including man-made mountain fire prediction, satellite fire point monitoring, and ground-based efficient fire extinguishing. [0004] However, during periods of high mountain fires such as Qingming Festival and Spring Festival, there are many people r...

AI Technical Summary

Problems solved by technology

[0007] ②According to the accident investigation, the mountain fire that causes the line trip is usually within 30 meters near the transmission line, but the live voltage of the transmission line is as high as 1000kV, requiring the helicopter fire extinguishing device to keep a sufficient safety distance. The transmission line discharges the helicopter or touches the line risk;

[0008] ③ Bucket fire extinguishing and ordinary fire water gun fire extinguishing can easily lead to tripping of transmission lines;

[0009] Therefore, the existing ordinary helicopter fire extinguishing equipment cannot meet the fire extinguishing requirements of multi-fire points, safety and high insulation of transmission line mountain fires

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