In cities, in addition to sanitation vehicles such as sprinklers, garbage trucks, and sweepers, we can also see special vehicles like fire trucks from time to time. Especially in summer, the frequency of seeing fire trucks is even higher.
Ascending platform fire trucks, the appearance of fire trucks is mostly red, mainly because the red light wave is the longest and has strong penetrating power. It is easy for people to see even in foggy, dusty environment or heavy rain. It gave way in order to complete the fire and rescue mission. The top of the fire truck is usually equipped with alarm bells, warning lights and strobe lights. Common types of fire trucks include water tank fire trucks, foam fire trucks, pump fire trucks, and elevated platform fire trucks.
Pumped fire trucks, as the earliest type of fire trucks, play an important role in today's fire fighting work. The main structure of the pumped fire truck includes fire pumps, equipment and passenger seats.
Most domestic pump fire trucks are modified by Jeep chassis or other types of car chassis. Since there is no designed water source onboard, pumped fire trucks can only use water sources near the fire site to extinguish fires, such as fire hydrants and rivers. The pumped fire truck has a simple structure and does not need to be equipped with a water tank, so the vehicle is small in size and light in weight. It has the characteristics of flexible response and can quickly reach the fire scene in the shortest time.
Because of this advantage, pumped fire trucks are widely used in cities and towns with narrow roads, and most fire command vehicles are also used by pumped fire trucks.
Water tank fire trucks and pump fire trucks can only be used on fire sites close to the water source. When encountering fire sites without water sources, pump fire trucks seem helpless. At this time, water tank fire fighting came into being.
In addition to being equipped with water pumps and equipment, water tank fire trucks are also equipped with larger capacity water storage tanks, water guns, and water cannons. Water and firefighters can be transported to the fire site for independent fire fighting operations.
Water tank fire trucks are suitable for putting out house construction and general solid material fires. Combined with other types of fire extinguishing equipment, it can greatly increase the applicability of water tank fire trucks. At present, the water tank fire truck is a standing fire fighting vehicle for the public security fire brigade and the full-time enterprise fire brigade. Because of its simple structure and mature technology, every fire truck factory can produce this kind of fire truck. In recent years, water tank fire trucks have gradually begun to popularize the CAN bus system in order to achieve intelligent and simplified control. In order to improve the efficiency of fire fighting, imported fire pumps and large-caliber hoses have become the mainstream trend.
Foam fire trucks are more complicated than water tank fire trucks. The upper part is mainly composed of liquid tanks, pump rooms, equipment boxes, power output and transmission systems, piping systems, and electrical systems. Foam fire trucks are suitable for urban public security fire brigades, petrochemicals, factories and mines, forests, ports, docks and other departments. According to the different foam mixing ratio and foam production principle, the fire truck can be equipped with a foam liquid tank, an air foam ratio mixer, a pressure balance valve, a foam liquid pump, and a foam gun. When the foam ratio mixing system is used for fire fighting, 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, foam fire trucks equipped with CAN bus are mainly concentrated on imported models, which can realize the modular management of the control system. Future fire trucks will be more controlled by computer programs to make the ratio of water and foam more accurate and the fire extinguishing effect better.
The ascending platform fire truck is composed of a car chassis and two or more sections of arms. The top of the arm is equipped with a manned platform. It is an advanced ascending equipment with full-slewing, folding arm lifting and hydraulic transmission.
The maximum deployment angle of the working arm of the climbing fire truck is 85 degrees, and the working height is high. Currently, the highest used climbing platform fire truck in the world is 101 meters. The ascending platform fire truck is suitable for special fire fighting vehicles for high-rise building fire fighting, rescue and high-altitude operations. Home.
