Throttling booster conveying device for fire truck

Abstract

The invention relates to a throttling pressurized transportation device of a fire fighting truck. The throttling pressurized transportation device comprises a foldable material delivery pipe and a nozzle, wherein the foldable material delivery pipe comprises a plurality of steel pipes and a plurality of movable joints, and the diameters of the steel pipes are sequentially reduced from bottom to top; the nozzle is fixedly connected to an automatic angle adjusting component; and the automatic angle adjusting component is fixedly connected to an outlet of the steel pipe at the top end of the foldable material delivery pipe. According to the throttling pressurized transportation device of the fire fighting truck, dry powder is prevented from depositing on the walls of the steel pipes, the concentration of the dry powder in airflow can be ensured, and the airflow can carry the dry powder to impact open fire in a certain pressure, a certain speed and a certain impact force, so that the open fire is impacted, blocked and covered, and a rapid fire extinction effect can be realized; and meanwhile, the direction and angle of the nozzle can be conveniently adjusted by the throttling pressurized transportation device, so that the fire extinction efficiency is further improved.

Description

technical field [0001] The invention relates to the field of fire-fighting material conveying devices for fire-fighting equipment, in particular to a throttling and pressurized conveying device for dry powder conveying of dry powder fire trucks. Background technique [0002] With the rapid development of the economy, the human and economic losses caused by fires are also increasing. When a large fire occurs, fire trucks will be used to extinguish the fire. Some of the existing fire trucks use water to extinguish fires, and some use foam to extinguish fires. Fire extinguishing by gas, but there is no fire truck for effective dry powder fire extinguishing at present. The advantage of dry powder fire extinguishing is that it will not cause impact and immersion damage to the fire extinguishing object like water fire extinguishing, and will not cause corrosion damage to the fire extinguishing object like foam fire extinguishing. There is no secondary damage and pollution, and it ...

AI Technical Summary

Problems solved by technology

The dry powder delivery pipeline of this dry powder fire truck uses a hose. The airflow carries the dry powder during the ascent process. As the conveying distance increases, the speed and pressure of the airflow gradually decrease. The dry powder is easily deposited on the hose wall. When the airflow When it reaches the nozzle, the concentration of the dry powder carried is already very low, and the pressure of the airflow is not enough. In addition to the structural problems of the nozzle, after the airflow is sprayed from the nozzle, it lacks momentum and will quickly diffuse into the air, and the dry powder carried will also quickly drift away. , cannot form impact blocking coverage on open flames, and the effect of fire extinguishing is not obvious

Images