In the city, we often see fire trucks, special vehicles such as sprinklers, garbage trucks, sweepers, etc. from time to time. Especially in summer, the frequency of seeing a fire engine is even higher. In this issue, Longxing Xiaobian will introduce several fire engines for everyone!
Ascent platform fire truck
The appearance of the fire truck is mostly red, mainly because the red light wave is the longest and has strong penetrating power. Even in a dense fog, dusty environment or heavy rain, it is easy for people to see and make way for it to complete. Fire rescue mission.
The top of the fire truck is usually equipped with a whistle, a warning light and a strobe light. Common types of fire engines include tank fire engines, foam fire engines, pump fire engines, and platform fire engines.
Pump fire truck
Pump fire truck
Pump fire trucks, as the earliest type of fire engine, played an important role in today's fire fighting work. The main components of the pump fire truck top include fire pumps, equipment and crew seats.
Most domestic pump fire engines are retrofitted to Jeep chassis or other types of automotive chassis. Because there is no design for on-board water, the pump fire truck can only use the water source near the fire site to extinguish the fire, such as fire hydrants and rivers.
The pump fire truck has a simple structure and does not need to be equipped with a water tank. Therefore, the vehicle has a smaller body, a lighter quality, and a flexible response, and can quickly reach the fire field in the shortest possible time.
It is precisely this advantage that pump fire trucks are widely used in narrow cities and townships, and fire command vehicles are mostly served by pump fire engines.
Water tanker fire truck
Water tanker fire truck
Pump fire trucks can only be used in the fire field near the water source, and encounter fire sites without water sources, so pumping fire trucks can't help. At this point, the tank fire truck came into being.
In addition to equipped with pumps and equipment, the tank fire truck also has large-capacity water storage tanks, water guns, and water cannons. Water and firefighters can be transported to the fire to perform fire-fighting operations independently.
Water tanker fire truck
The tank fire truck is suitable for fighting house construction and general solid material fires. Combined with other types of fire extinguishing equipment, it can greatly increase the applicability of the tank fire truck. At present, the jug fire truck is a fire-fighting vehicle reserved for public security fire brigade and enterprises and professional fire brigade.
Due to the simple structure and mature technology, each fire engine factory can produce such fire engines. In recent years, water tanker fire trucks have gradually started to popularize the CAN bus system to realize intelligent and simple control. In order to improve the fire extinguishing efficiency, imported fire pumps and large-diameter water hoses have become the mainstream trend.
Foam fire truck
Foam fire truck
Foam fire trucks are more complicated than water tank fire engines. The top part is mainly composed of liquid tanks, pump rooms, equipment boxes, power output and transmission systems, piping systems, and electrical systems. Foam fire engines are suitable for urban public security fire brigades, petrochemicals, factories and mines, forests, ports, and docks.
According to the foam mixing ratio and the principle of foam production, fire engines can be equipped with foam tanks, air bubble ratio mixers, pressure balance valves, foam liquid pumps, and foam guns. When foam mixing systems are used for fire extinguishing, the ratio of water to foam is generally 97:3 and 96:6, and the mixed liquid is sent to the foam generating device by a water pump.
At present, the foam fire trucks equipped with CAN bus are mainly gathered on the imported vehicles and can realize the modular management of the control system. The future of fire engines will be more controlled by computer programs, so that the proportion of water and foam is more accurate and the fire extinguishing effect is better.
Ascent platform fire truck
Ascent platform fire truck
The climbing platform fire truck consists of an automobile chassis and two or more section arms. The top of the arm is equipped with a passenger platform. It is a kind of advanced climbing equipment that adopts hydraulic transmission and is a kind of full rotation and folding arm lifting.
The height of the working arm of the ascendant fire truck is 85 degrees, and the working height is high. At present, the world's highest used platform for climbing a fire truck is 101 meters. The platform fire truck is suitable for special fire fighting vehicles in high-rise building fire fighting, rescue and high-altitude operations.
Due to the high technical requirements for climbing fire engines, China's current type of fire engines are mainly imported. Zoomlion and Xugong are among the few manufacturers that can produce this type of fire engines.
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