A device for treating hydrazine waste gas of aircraft emergency power system and its application

Abstract

The invention discloses a device for treating hydrazine-containing waste gas in an aircraft emergency power system. The device comprises a static mixer, a gas-liquid separator, a high gravity reactor, an absorption liquid storage tank, an absorption liquid circulating pump and a waste liquid storage tank. A gas outlet of the static mixer is connected with a gas inlet of the gas-liquid separator, a liquid outlet of the gas-liquid separator is connected with a liquid inlet of the absorption liquid storage tank, and a gas outlet of the gas-liquid separator is connected with a gas inlet of the high gravity reactor. A liquid outlet of the high gravity reactor is connected with the liquid inlet of the absorption liquid storage tank; a liquid outlet of the absorption liquid storage tank is connected with the absorption liquid circulating pump which is connected with the waste liquid storage tank; two bypasses are arranged between the absorption liquid circulating pump and the waste liquid storage tank, one of the bypasses is a liquid inlet through which the absorption liquid circulating pump is connected with the static mixer, and the other one of the bypasses is a liquid inlet through which the absorption liquid circulating pump is connected with the high gravity reactor. The device can meet vehicle-mounted requirements, the hydrazine and ammonia removal efficiencies are high, the device is convenient to start or stop, operating flexibility is high and little space is occupied.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment. More specifically, it relates to a device for treating hydrazine exhaust gas of an aircraft emergency power system and its application. Background technique [0002] The structural characteristics and cycle process of modern aviation gas turbine engines determine that they must be driven by other power sources before they can work autonomously. In modern aircraft, the power unit with the main generator as the core is the main power source for starting the engine. In addition to the power unit, some aircraft are also equipped with an emergency power unit (EPU). The emergency power system is a small power device on the aircraft that provides emergency power and hydraulic energy. When the engine stalls or the main generator or hydraulic pump fails during flight, the emergency power system can immediately (2-3 seconds) provide independent energy to the key loads of the flight control an...

AI Technical Summary

Problems solved by technology

The device in the invention can meet the requirements of the vehicle, has high removal efficiency of hydrazine and ammonia, is convenient to start and stop, has large operating flexibility and takes up less space, and can meet the requirements of flexible response of ground handling work matched with flight equipment, and at the same time solve the problem of aircraft ground It is a new technology for highly efficient treatment of hydrazine waste gas during the inspection or test of aircraft emergency power system.

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