【 Weak current College 】 airport fire trucks of basic performance requirements

Summary: Describes the airport fire truck chassis and fire-fighting system of basic performance requirements.
Keywords: airport fire trucks; chassis; fire protection; performance requirements
Airport fire trucks is dedicated to the prevention and suppression aircraft fire, and on the machine to be timely rescue crews, can be used in vehicles in Jet fire extinguishing agent. Due to its characteristics and peculiarities of the environment, the airport fire trucks compared with ordinary fire trucks have higher performance requirements.
1 the classification of the airport fire trucks
According to airport firefighting tactical needs, airport fire trucks are divided into:
Rapid mobilization of car 1.1 (RIV)
Also called head car, it's fire-fighting capability is relatively small, but speed is particularly high, the engine without preheating, temperature 7? C above, loaded with speed 0 ~ 25s in greater than 80km/h. Its role is in main bubble cars did not reach the aircraft crash sites before the crash the plane carried out fire fighting, trying to control the fire, to prevent the spread of fire.
1.2 main bubble cars (GTLF)
Also known as the main vehicle of the fire-fighting capability, it is large, strong adaptability, equipment complete, is the airport crash when major-fighting and rescue vehicles. Main car loaded with moving within 0-40s may accelerate to 80km/h, the maximum speed in 100km/h or more.
2 airport fire trucks of basic performance requirements
According to the International Civil Aviation Organization (ICAO) statistics, there are 91 per cent of the crash occurring in the plane taking off or landing, most occurred along both sides of the runway centre line and fallback 600m regional runway, where 71 per cent of the crash the plane because of fire and burned.
Because the aircraft was on fire during the combustion of mostly fuel, polymer materials and light metals, produces large amounts of toxic gases and smoke, fire crews can after machine escape time very short, so the airport fire truck must be in the shortest time arrived on the scene, making this escape time, the fire to get timely control and help the occupant evacuation on board. International Civil Aviation Organization expressly: airport fire engines arrived at the airport and landing zone of any part of the response time should not exceed three minutes, it is best not to exceed two minutes.
At present, China's airport fire performance requirements as there is no national standards, in order to meet the standard MH7002-94 of the civil air transport airport fire station equipment with the requirements of effective fire-fighting and rescue, the airport must meet the following requirements: basic properties
2.1 chassis
Airport fire trucks have chosen chassis must ensure that the required response time arrived at the crash site. Although the airport runway area is flat, but often there may be obstacles, such as Groove, loose soil, airport fire truck must cross the obstacle to reach the airport fire range of all possible crash sites.
2.1.1 cross-country, must be an all-wheel drive, the chassis must have sufficient strength and stiffness, ground clearance and departure angle of approach angle, etc, should meet the requirements.
2.1.2 than power (15 above), dynamic performance, i.e. acceleration performance, the maximum speed is fast.
2.1.3 transmission system should try to use automatic transmission, the driving and operation with a high degree of automation, and sensitive, easy, and reliable.
2.1.4 stability, low center of gravity, off-road driving good lateral stability, General requirements for vehicles in 20 per cent (approximately 10?) Roll on the slopes, and still have good operational stability.
2.1.5 braking system must be a dual independent system, when the primary braking system failure, another independent system can also be scoped to brake, to ensure the security and reliability of the braking system. Main brake should be able to make fully loaded vehicles in 50% of the slopes.
2.1.6 vehicles, interior noise must be controlled at 85 DB or less.
2.1.7 vehicle maintenance, maintenance of close to nature.
2.2 fire protection system
2.2.1 bulk, versatile, high performance, high reliability. Fire load, fire pumps, high efficiency, reliable work.
2.2.2 fire cannons mounted in the cab or the vehicle's front end, you can rotate the 200, elevation angle greater than 45, pitching is greater than 15. Fire monitor the flow is large and can adjust at any time under fire, with a range of needs.
2.2.3 reaction speed, capable of maximum speed enables the system to work.
2.2.4 steering systems with a high degree of automation, easy operation, safe and reliable, responsive, typically using electro-pneumatic or electro-hydraulic power steering unit, at the same time equipped with standby manually operated device for dynamical systems fail.
2.2.5 use light signals and display of the instrument, apparatus, identity, firefighters keep accurately get device status information.
2.2.6 manipulation device should be arranged in the firemen view, reach, a firefighter to control fire-fighting equipment control device.
2.2.7 cab on both sides of the front, body, self-insured nozzle installed to protect body and wheels.
2.2.8 fire pipe and valve should be corrosion-resistant materials.
2.3 other
Airport fire trucks also should have good flexibility and a certain fire rescue capabilities, i.e. it should not only have the edge driving ability edge Jet fire extinguishing agent, must also have in the fire under control or the fight at rescue crews and aircraft on board. Therefore there should be a fire engine for rescue work of firemen's seats and equipped with the necessary rescue equipment and safety equipment.