Fire-fighting bomb launching method

Abstract

The invention discloses a fire-fighting bomb launching method. According to the fire-fighting bomb launching method, symmetric double friction wheels are adopted for friction launching of fire-fighting bombs. The double friction wheels are symmetrically arranged on the two sides of the launching area, after the fire-fighting bomb enters the launching area, the double friction wheels make contact with the two sides of the fire-fighting bomb, and the fire-fighting bomb obtains the initial running speed and is launched out through rotation of the double friction wheels. An existing fire-fighting bomb launching mode is changed, and the unsafe defect existing in compressed gas launching, elastic force launching, fire blast launching, gunpowder launching, electromagnetic launching and the like is overcome. On the premise of guaranteeing the safety, the fire extinguishing device is simple in design, the manufacturing cost is reduced, and the fire extinguishing effect is improved. The long-body fire-fighting bomb launcher can launch a long-body fire-fighting bomb and can also launch a spherical bomb, the shooting precision can be improved, and the shooting error can be reduced.

Description

technical field [0001] The invention relates to a method for launching fire-fighting bombs, belonging to the technical field of fire-fighting bomb launching. Background technique [0002] The currently approved fire bomb launch methods are as follows: [0003] 1. Compressed gas launch: use high-pressure gas with a pressure value of more than 25Mpa to launch fire bombs. The greater the gas pressure, the longer the launch line to maintain the air pressure, and the longer the fire bomb can be launched. Compressed gas can be provided by an air compressor, or a high-pressure gas storage tank that meets the pressure value is often used. [0004] 2. Elastic launch: use the sudden release of the compression spring to make the fire bomb live at a certain initial speed. [0005] 3. Detonation launch: Quantitatively deliver combustible gas (methane) to the combustion chamber to mix with air, use electric spark to ignite, form a rapidly expanding explosive gas and launch the fire bom...

AI Technical Summary

Problems solved by technology

[0009] 1. Compressed gas launch: Because it takes a certain amount of time to obtain the air pressure value that satisfies the launch, the launch design implements a complete fire bomb launch process with a relatively long interval, and at the same time it is impossible to obtain continuous launch effects

It is an unsafe pressure for aircraft, and it is difficult to obtain approval during airworthiness certification

If this design is used for the modification of fire rescue helicopters, the high-pressure gas required by the launching device is an unsafe pressure for the aircraft, and it is difficult to obtain approval for such modifications during airworthiness certification

[0010] 2. Elastic launch: the mechanism efficiency is very low, the vibration is large, and the noise is large

If it is used for civil fire fighting, it is actually prone to secondary disasters such as accidental injury to people and financial damage

At the same time, because this type of design uses the gunpowder combustion method, this achievement cannot be used in aircraft modification

[0013] 5. Electromagnetic emission: complex technology and high cost of equipment production

[0016] However, such a launch method has the following disadvantages:

[0017] 1. In the above-mentioned launch method, a single friction wheel is adopted to launch the fire extinguishing bomb, and the fire extinguishing bomb is a spherical bomb. Therefore, the fire extinguishing bomb will produce a strong rotation, which will cause the spherical fire extinguishing bomb to produce an irregular arc motion, thus deviating from the launch target, causing shooting error

[0018] 2. From the above launch method, it can be clearly seen that only spherical bullets can be launched, and other fire bombs other than spherical shapes cannot be launched.

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