来源：http://www.wfzhongtebao.com 点击次数： 发布时间：2018-03-27
1. The mechanism of foam saving
The relative density of the foam is small, the fluidity is good, the durability and the burning resistance are strong, the thermal conductivity is low, and the adhesive force is great. These physical properties enable it to be quickly covered on the surface of incineration, which can obstruct the transmission of flammable steam, air and heat, plus the cooling effect, which has played an important role in saving lives.
Two. The structure and operation principle of the foam fire engine
The foam fire engine consists of the chassis of the car and the special equipment in the upper part of the car. The foam fire-fighting vehicles produced at home and abroad are mostly used for the two types of general vehicle chassis supplied by the whole vehicle manufacturers. Its special device mainly includes the force collector, water foam tank, device box, pump room, fire pump, vacuum pump, foam share mixing equipment, etc.
其作业原理是：经过取力器设备将汽车底盘发 动机的动力输出，并经一套传动设备驱动消防泵作业，经过消防泵、泡沫份额混合设备将水和泡沫按必定比例混合，再经消防炮和泡沫救活枪 喷出救活。
Its working principle is: after the equipment power take-off power output of the automobile chassis engine, and by a gear drive device of fire pump, fire pump, after the foam mixing equipment will share the water and foam are mixed according to a certain percentage, and then by the gun fire and foam gun spray to save living life.
Therefore, it is necessary for the vehicle chassis to be satisfied with the certain load and engine power. It has developed a national standard, "fire truck chassis selection based on general chassis series, types, basic parameters and technical requirements of the" national standards for selection, according to occupation standard "foamengine general skills" conditions of annex A requirements of the power of the engine is necessary with its rules.
1. Power output equipment
国产泡沫消防车多选用主车发动机取力方法，取力器安置方法可有多种方式，而现在中重型泡沫消防车多选用将取力器置于主离合器和变 速器之间的夹心式取力器（变速器前置式）和传动轴取力（变速器后置式）两种方式。选用夹心式取力器将主发动机的动力取出经传动系统传 到水泵，驱动水泵工作，能够实现双动功能。现在大多选用此种方式。
国产泡沫消防车多选用主车发动机取力方法，取力器安置方法可有多种方式，而现在中重型泡沫消防车多选用将取力器置于主离合器和变 速器之间的夹心式取力器（变速器前置式）和传动轴取力（变速器后置式）两种方式。 The power extraction of the main engine is used to pass the driving system of the main engine to the pump and drive the pump to realize the double dynamic function. Most of them are used in this way now.
2, water foam tank
Water - foam tank is the primary container save agent loading foam fire truck, according to the development of fire occupation can choose a variety of data produced, in 80s and 90s the last century using polyester FRP materials, now gradually developed into high-quality carbon steel and stainless steel material manufacturing.
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