小型电动消防车说明

消防车泵房冬季常用的保温方式

我国地域辽阔，南北纬度跨度较大，特别是在冬季，南北气候分布差别非常明显。东北地区，冬天气温 低甚至可达零下四五十度。在寒冬，载满灭火剂的消防车在救火的中途，其进出水阀门、进出水管路、消防水泵，都有被冻裂的可能。如果消防泵被冻裂，那整个消防车将失去它本该发挥的作用。所以，北方地区，在冬季对消防泵的保温显得尤为重要。

1．泵房保温的目的

维持消防车冬季出警时泵房内的温度，防止由于环境温度低于0℃导致管路内的水结冰，从而导致管路、阀门、泵体等出现涨裂损伤。大家都知道，冰的密度小于水。当相同质量的水凝结成冰时，体积会发生膨胀；而消防车管路的封闭空间会阻止这种膨胀， 终就会导致在膨胀力的作用下管路、阀门、泵体等出现涨裂的情况。

2．小型电动消防车常见的几种御寒方式：

（1）“穿棉裤”：消防车泵房管路常见的保温方式就是在管路外面包裹一层毛毡或隔温材料。这属于被动式，就像大家小时候见到过的冰棍箱，在冰棍上盖上一层棉被，用于阻止热量散发。

（2）“电褥子”：在球阀及管路上缠绕电阻丝，通过电阻丝发热来对管路进行加温。这就属于主动式了，就像给泵房里面铺上一层电褥子，通过主动加温方式来防止结冻。这种方式常见在出口球阀上。

（3）“吹空调”：在泵房内安置热风机，通过向泵房内吹热风的方式来保证泵房温度。这种方式需要泵房密封，防止散热太快。这也属于主动方式，就像在泵房里安装了一个供热空调。

（4）“电暖气”：在泵房内放置一台家用电暖气，用于泵房内加温。这属于临时应急处理办法，且需要泵房内有足够空间来放置电暖气。

Description of small electric fire truck

Special function description

The overall streamline design, the appearance is novel, the water pump adopts the sandwich power take-off mode, to achieve the movement, fire synchronous action, economic and practical, flexible, is a new generation of the same type of fire truck alternative products. This vehicle is suitable for small and medium-sized cities, fire brigade, fire brigade, township fire station and full-time fire brigade of mining enterprises to put out general material fire.

The history of small electric fire engines

Fire engine - before the invention of steam engine, horse drawn fire engines with human powered water pumps were used in cities and towns. In the 19th century, urban fire brigades in Europe and America began to equip pumping fire extinguishing devices powered by steam engines, and produced special fire engines with such fire extinguishing devices. This kind of fire truck can produce high water flow, long range and requires less manpower, but it is still driven by horse. At the beginning of the 20th century, Mara's steam fire engine was replaced by the fire engine powered by internal combustion engine and car chassis. Modern fire engine is a special truck equipped with water pump, pressure pump, water pipe or chemical extinguishing agent, which can spray high pressure water column or foam powder of extinguishing agent. The fire engine has its own water tank. When the water tank is used to store water for fire fighting, the canvas hose can also be connected to the fire hydrant near the fire site to get water for fire fighting.

[functions of each part of water supply fire truck]

Generally speaking, water supply fire engines can be divided into four parts according to their functions. The front part of the fire truck is the cab, in which the driver and commander sit; Behind the cab are the other firefighters. All kinds of tools, including water and fire hose, are placed behind the rolling shutters of the car body. Behind these tools is the water tank for storing fire water. Near the end of the fire truck is the pump house. As the name suggests, this is the place where the pump is placed. Generally, there are rolling curtains on three sides of the pump cabin. When the rolling curtain at the tail is folded, you can see the display screen showing the working state of the pump. In the pump cabin, the necessary tools for using the pump are generally provided.