Pressure unbalance emergency processing system for aircraft test and processing method thereof

Abstract

The invention discloses a pressure unbalance emergency treatment system for aircraft testing and a treatment method thereof, and belongs to the technical field of aircraft testing, the treatment system comprises a heat preservation sealing plate, a driving assembly, a sealing assembly, a damping assembly and a PLC, the heat preservation sealing plate is hinged to the interior of a fire fighting access, and the driving assembly comprises a first hydraulic rod and a second hydraulic rod; one end of the first hydraulic rod is hinged to the fire-fighting access, the other end is hinged to the heat-preservation sealing plate, and the second hydraulic rod is arranged at the bottom of the fire-fighting access and movably connected with the heat-preservation sealing plate; the sealing assembly comprises an electric heating plate and a sealing strip, the electric heating plate is arranged on the side wall of the heat preservation sealing plate, and the sealing strip is arranged outside the electric heating plate in a sleeving mode. The damping assembly is arranged in the fire fighting access and used for buffering vibration generated when the heat preservation sealing plate descends. The PLC is electrically connected with each electric device; the system is reasonable in structural design, the thermal insulation sealing plate is rapid in response action, and the safety and reliability of aircraft testing work can be improved.

Description

technical field [0001] The invention relates to the technical field of aircraft testing, in particular to a pressure imbalance emergency processing system for aircraft testing and a processing method thereof. Background technique [0002] As a large-scale carrying facility for aircraft environmental tests, the climate and environment laboratory can accommodate full-size aircraft and can provide all-weather, time-independent high temperature, low temperature and other environmental conditions. The engine start-up environment simulation is to simulate the low temperature, high temperature, humid heat and other climate environments encountered during the start-up or operation of the aircraft engine in the climate environment laboratory. The environment laboratory must be equipped with an air compensation system and an exhaust gas emission system. Due to the ground driving test in the engine laboratory, the amount of air consumed is huge. If there is a delay in the dynamic resp...

AI Technical Summary

Problems solved by technology

If there is a delay in the dynamic response of the laboratory air compensation system relative to the change of engine air intake during the engine start-up process, it will cause a large change in the indoor pressure in a short period of time, and the indoor and outdoor pressure difference exceeds the allowable value of the building design. The test environment has adverse effects, damages the laboratory building structure, and threatens the safety of personnel, test pieces and equipment

[0003] At the same time, because the test aircraft is stored in an extreme climate environment, its aircraft fuel, hydraulic oil, and lubricating oil are likely to leak and volatilize.

The climate and environment laboratory is a confined space, where leakage and volatilization lead to an increase in the concentration of oil and gas, and there is a risk of flash explosion or fire

Moreover, due to the requirements of the engine start-up test, the test aircraft carries a large amount of fuel, which further aggravates the risk and poses a serious threat to the safety of the entire laboratory

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