Fire fighting truck

Abstract

The invention relates to a fire fighting truck which comprises a truck body, a high-pressure air pump, a high-pressure air storage tank, a dry powder tank, an electric cabinet and a controllable conveying device, wherein the high-pressure air pump, the high-pressure air storage tank, the dry powder tank, the electric cabinet and the controllable conveying device are arranged on the truck body, and the controllable conveying device is controlled through the electric cabinet; the air output end of the high-pressure air pump is connected with the high-pressure air storage tank; the high-pressure air storage tank is connected with a plurality of air inlets of the dry powder tank through air pipelines; the dry powder tank comprises an air-powder mixing part and a throttling and releasing part; an air outlet of the throttling and releasing part is connected with a feeding port of the controllable conveying device. According to the fire fighting truck, the atomization effect of dry powder is improved, the dry powder can be throttled, mixed, pressurized and accelerated multiple times in the conveying process, the dry powder can be effectively prevented from being accumulated on the pipe wall, and the concentration of the dry powder in the air flow is guaranteed; when the air flow carries the dry powder to a spray nozzle, under the action of bulking, throttling, mixing, pressurizing, accelerating, guiding, ordered bulking and guiding and the like of the spray nozzle, the air flow carries the dry powder to a kindling point with a certain impacting force, flame is prevented from rising, and the effect of fast fire extinguishing is achieved.

Description

technical field [0001] The invention relates to the field of fire-fighting equipment, in particular to a fire-fighting vehicle with functions of dry powder, water and foam fire extinguishing. 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. Extinguished by gas. But, also do not have at present the fire engine that can not only high-altitude dry powder fire extinguishing, but also low-altitude fire extinguishing, only have dry powder fire extinguisher 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 ext...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to aim at the fact that the dry powder in the existing fire trucks pointed out in the background technology cannot be fully atomized and sprayed at a certain concentration. When the dry powder is transported to a certain height, part of the dry powder will be deposited on the wall of the conveying pipeline due to the influence of gravity. , so that the dry powder concentration in the dry powder mist is low and the fire extinguishing effect is poor, and a fire truck that can solve the aforementioned problems is provided

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