Air leakage testing bed and detection method using same

Abstract

The invention relates to a detection device, in particular to an air leakage testing bed and a detection method using the same. The air leakage testing bed comprises an air-tight bin, a seamless steel tube arranged on the lower portion of the air-tight bin in a connected mode, a pressure differential sensor respectively communicated with the air-tight bin and the seamless steel tube, and a vacuum pump connected with the seamless steel tube. The air-tight bin and the seamless steel tube are respectively provided with a height meter, the air-tight bin is provided with an installation hole used for installing of a cockpit pressure exhaust valve, and the seamless steel tube is communicated with the air-tight bin through the cockpit pressure exhaust valve. The air-tight bin is communicated with compressed air and the atmosphere through two pipelines respectively, and the two pipelines are respectively provided with a flow sensor and a control valve. The air leakage testing bed is small in size and simple and convenient to operate, testing results are not influenced by environment, and calibration and maintenance of a cockpit pressure controller and the cockpit pressure exhaust valve are facilitated.

Description

technical field [0001] The invention relates to a test device for the sealing performance of a cabin, in particular to a test device for air leakage in a cabin and a detection method using the same. Background technique [0002] Aircraft cockpit pressure control system is a necessary equipment to overcome the adverse effects of the environment on human body and equipment when the aircraft is flying at high altitude, and to ensure the safety and reliability of the personnel and equipment in the cabin. Aircraft cockpit pressure control system is an important part of aircraft environmental control. It mainly controls and adjusts the pressure parameters in the cockpit, so that it can adjust the cockpit pressure according to the requirements of the pressure system, so as to ensure that the aircraft can meet the physiological functions of the human body at different flight altitudes. , but also to ensure the integrity of the aircraft fuselage structure. [0003] The function of t...

AI Technical Summary

Problems solved by technology

[0004] Due to the long design of the original air leakage test device, the selected components are old, and it is difficult to replace and repair the damaged parts

Secondly, the original design is relatively bulky and has many components, which not only increases the volume of the device, but also increases the difficulty of the assembly process.

Furthermore, the original air leakage test device has many control valves and the control is cumbersome, which requires high assembly technology

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