A high-efficiency water mist fire extinguishing aerial bomb for forest surface fire

Abstract

The invention provides a high-efficiency water mist fire extinguishing aerial bomb for forest surface fires, comprising a bomb body (2) and a tail (6), the body (2) is threadedly connected with the tail (6), and the The projectile body (2) includes a gas generator (1) and a water system fire extinguishing accommodation part (4), and they are all arranged inside the projectile body (2), and the gas generator (1) and the projectile body (2) The head end is threaded; the spring tail (6) is provided with a fine water mist nozzle assembly (5), which includes a catheter (3) and a nozzle (12) that is provided with a pressure valve (11), and the fluid guide One end of the pipe (3) is connected with the nozzle, and the open end of the catheter (3) is arranged at the head end of the projectile body. The invention adopts the delivery method of helicopter or aircraft, can carry a large number of fire-extinguishing aerial bombs, and the delivery height is not limited, and it can accurately land on the target fire area.

Description

technical field [0001] The invention relates to a fire extinguishing device, in particular to a high-efficiency fine water mist fire extinguishing aerial bomb used for forest surface fires. Background technique [0002] There are more than 220,000 forest fires in the world every year, and the burned forest area exceeds 6.4 million hectares, accounting for more than 0.23% of the world's forest coverage. my country's forest area is 120 million hectares, and the forest area engulfed by fire every year is 1.1 million hectares, accounting for 0.8% to 0.9% of the national forest area. Therefore, forest fire fighting has always been the national disaster prevention and mitigation work. One of the main content. [0003] Forest fires are usually divided into three types: surface fires, tree crown fires, and underground fires according to their burning objects and burning parts. Surface fire is the most common forest fire, which accounts for 94% of all forest fires. Surface fires ca...

AI Technical Summary

Problems solved by technology

[0004] For extinguishing forest surface fires, practice shows that Fengshui fire extinguishers have the longest fire extinguishing time, and the water spray volume is small, mainly relying on wind to disperse the fire; water pump spray fire extinguishing is the most primitive fire extinguishing method, which takes the shortest time and has the best fire extinguishing effect. It is good, but the equipment is bulky, and it is difficult to transport and replenish water. This is also a problem that is difficult to solve in forest firefighting. Compared with water pumps, water guns save water, but the water flow is small, and the fire extinguishing time is long. Operators are manual and easy to fatigue. Can be used to fight small-scale fires, not suitable for fighting forest fires

When using airplane or helicopter to lift water or dry powder to extinguish the fire, it is difficult for the fire extinguishing agent to fall on the ground due to the high temperature air waves of the crown fire, and the cost of fire extinguishing is extremely high

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