First, the basic theoretical knowledge of high fire trucks
(a) Definition of high fire trucks
First of all, to understand the significance of lifting high-fire trucks and equipment, it can be understood that lifting and extinguishing equipment can be used to carry out fire extinguishing or fire rescue. It can be used to support the use of fire engines.
(II) Classification of fire fighting vehicles and their structure and characteristics
Generally, there are also differences in the use of the structure of the high-lift fire truck jib system, and the specific performance is also different. It can be divided into three kinds of fire trucks with ladder ladders, fire platforms for climbing platforms and high-elevation fire engines.
It is understood that the development of high-power fire engines has a history of more than 100 years. Over the years, with the continuous improvement of actual combat and manufacturing processes, the front section of the ladder truck can be equipped with a folding forearm to form a straight arm-lifting vehicle. Ascending platform vehicles can continue to raise heights and continue to be hung on high-elevation fire engines. This way, through a composite combination, they can also play a role in the rescue and improve the rescue methods.
This article only discusses the above three main types of fire engines:
( 1 ) The ladder ladder fire truck adopts a telescopic boom structure, the main advantage of which is that the operation is very simple and the purpose can be achieved. Yunti fire truck also has many advantages. In the process of reconstruction, fixed pipelines are also loaded. The installation of this platform can make the carrying capacity of the platform relatively small and can also play a certain role.
Ladder fire truck
( 2 ) The climbing platform fire truck, also known as the hydraulic lifting trolley, is also known as a crank arm due to its curved arm structure. In the 1990s , along with the progress of manufacturing technology, a straight arm telescopic arm structure was also featured. Among them, there are also many advantages, of which the scope is very wide and the area of ​​the work platform has also become larger. The main point is that the work has become more stable. In this way, we can carry out firefighting rescue work and achieve fire extinguishment while also saving people, so that the working arm can be deployed at an angle of 85 degrees and work very high, and it can also facilitate work in it, and save relatively precious time in a limited time. Supplies.
Ascent platform fire truck
( 3 ) The high-ejection fire-fighting vehicle is commonly known as a high-spraying vehicle. It adopts a crank arm structure and is equipped with a fire monitor at its top. The liquid-controlled gun can spray water and spray foam. It has a long range, high flow, and can easily occupy the high altitude. Spray fire extinguishing agent. Under normal circumstances, modern high-spray trucks have water tanks, including fire-fighting pumps, and vacuum drinking water pumps. However, in this case, surface water can be used alone. If there is no water source around, it cannot be used. Used, need to have a matching set, so supporting to ensure that the high jet can continue to shoot, can let the water spray directly to the indoor and many other features.
Lift high jet fire truck
Second, the factors that limit the effectiveness of fire engines
( 1 ) Fire-fighting passages are often occupied and blocked, which brings about many unfavorable factors and influences on fire-fighting and rescue. This indirectly leads to the frequent occurrence of property losses and casualties that can be completely avoided.
( 2 ) Most of the high-grade fire engines are large tonnage and large-volume vehicles. This gives the driver higher requirements for the orderly development of the driving route, parking position selection and stretching operations.
( 3 ) With the development of science and technology, the functions of high-grade fire engines are becoming more and more complex and diverse. Drivers and security personnel are required to master more skills and precautions.
( 4 ) The daily duty preparations do not pay enough attention to the maintenance and maintenance of vehicles, and do not pay attention to the joint training of pilots, operators, and combatants, resulting in various kinds of hidden dangers caused by fire engines that cannot be used in actual combat.
Third, to improve the effectiveness of fire engines
( 1 ) The vehicle in the fire rescue should be close to the target building as far as traffic conditions permit, and choose hard ground. The carrying capacity of the ground should be greater than the vehicle itself, and the sewers, natural gas pipelines, manhole covers should be avoided below the support legs. Soft ground, sand, potholes, and all hidden and unconsolidated underground structures shall extend their horizontal legs as far as possible. All four legs shall support the ground to increase the bearing surface so that the tires will just leave. The ground is suitable, and at the same time, leveling is done to reduce the vehicle's center of gravity and prevent the vehicle from overturning and shaking.
( 2 ) Due to the limitations of the upper arm lift range, the working range that the working platform can reach should be estimated in advance when parking, and the secondary parking operation should be prevented because the working platform cannot reach the predetermined position, and the best rescue time is missed.
( 3 ) During the operation, the supporting surface and the smooth condition of the vehicle should be monitored at any time. When working at height, you should always be vigilant. Keep in touch with the ground and high altitude, especially when you encounter obstacles, especially billboards, high-altitude cables, high-voltage lines, etc., and you must maintain a safe distance from obstacles.
( 4 ) The fire scene is ever-changing, and it must be done every minute and every second to strengthen the firefighters' practice of aerial operation, continuously improve the ability of working at heights, and strengthen psychological counseling. Therefore, the operator has a good psychological quality and is a reuse factor for successful rescue. .
( 5 ) Do a good job of maintenance and repair. In ancient times, if workers want to do good, they must first sharpen their tools. The quality of equipment directly affects the success or failure of firefighting and rescue, and it is particularly important to strengthen the daily maintenance of vehicles.
1 Lift fire engines should be parked in a clean and dry garage, and regularly check whether the connecting parts and fasteners of each assembly are kept intact, fastened, locked, and can be used effectively to prevent loosening. Breakage, loss, etc. In particular, pay attention to whether the upper arm of the vehicle is fastened or not, and whether or not the wire rope used for lifting and lowering the ladder frame is stretched and relaxed.
2 pairs of extended steel wire ropes should be timely adjusted and reset by means of adjusting bolts; greases should be inspected frequently to ensure that the surface of the wire rope forms a layer of grease to prevent corrosion and rust of the steel wire ropes; if it is found to be damaged or broken, it should be immediately stopped. And timely replacement to ensure that the ladder can be used safely.
3 Be sure to check for missing fuel, lubricant, brake fluid, shock absorber fluid, and working fluid of the hydraulic drive system from time to time. If any are missing, add them in time. The maintenance of vehicle equipment must be institutionalized, regularized, and refined.
Fourth, the conclusion
Because of the special nature of their work, high fire trucks have higher requirements for safety. In the fighting of fire fighting, whether it is to fight the fire of high-rise buildings or chemical plant fires, it can be said to be indispensable. Only by ensuring its maximum optimization can it exert its maximum rescue capability.
The information in this article comes from the Internet and was reorganized and edited by China Rescue Equipment Network.
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