Strong wind smoke ejector truck of aircraft engine drive fan

Abstract

The invention discloses a strong wind smoke ejector truck of an aircraft engine drive fan. The strong wind smoke ejector truck comprises a vehicle, a water pot, a water pump, a lifting platform, a rotary mechanism and a pitching mechanism, wherein the pitching mechanism controls the pitching of a vent pipe; the inside of the vent pipe is provided with an aerial piston engine, a fan, a cowling anda commutator segment; the vent pipe is sleeved on the outside of the aerial piston engine; the fan is arranged on the output shaft of the aerial piston engine; the cowling is arranged in the shell ofthe vent pipe through the commutator segment; the vent pipe, the aerial piston engine, the fan and the cowling are on the same axis; and the vent pipe and the aerial piston engine are arranged on thesupport of the lifting platform. In the strong wind smoke ejector truck, the used aerial piston engine with small volume, light weight, high power and high reliability is used to drive the fan, thus the input power is increased to more than 200kW, the outlet air velocity of the fan is up to 45m / s, the air flow is up to 300,000m<3> / h and the stream ejection speed is more than 100m. Therefore, the strong wind smoke ejector truck provided by the invention has the largest air flow in China.

Description

technical field [0001] The invention belongs to a strong wind smoke exhaust fire truck, more specifically a high-power strong wind smoke exhaust fire truck driven by a decommissioned aviation piston engine. Background technique [0002] A large number of synthetic decoration materials are used in the residences, offices, public entertainment places, supermarkets, petrochemical factories, and large warehouses of modern cities, and a variety of energetic substances are gathered. A large amount of toxic smoke generated after a fire not only blocks the line of sight, but also causes It is difficult for personnel to escape, and it is the main factor causing death by inhalation poisoning. Statistics show that about 85% of urban fire deaths are caused by toxic smog. The smoke also prevented firefighters from entering the fire and fighting the fire. For this reason, a kind of smoke exhaust fire truck is auxiliary used in modern fire fighting and fire fighting, and the strong airfl...

AI Technical Summary

Problems solved by technology

[0004] However, these smoke exhaust fire trucks produced at home and abroad have the following defects: one is to drive the smoke exhaust fan with a hydraulic motor, and the automobile engine is still required to drive the hydraulic pump to provide hydraulic energy for it, and the energy is lost after two energy conversions. Larger, which limits the increase of the power of the smoke exhaust machine, which directly affects the smoke exhaust and cooling effect at the fire scene

Therefore, the strong wind flow rate of domestic smoke exhaust fire fighting equipment is 30,000-100,000m 3 Between / h, it is difficult to meet the needs of fire extinguishing and accident emergency rescue; second, the particle size of the water mist sprayed by the fine water mist nozzle is large, and at the same time, the nozzle is installed on the periphery of the air guide tube, which cannot make the fine water mist and The sprayed strong wind airflow is evenly mixed, and the fine water droplets with large particle sizes have fallen to the ground before being injected into the fire scene, which affects the effect of cooling the fire scene and absorbing toxic smoke

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