Aircraft bleed air precooling and heat regeneration device and using method thereof

Abstract

The invention relates to the technical field of aviation equipment, in particular to an aircraft bleed air precooling and heat regeneration device and a using method thereof. The aircraft bleed air precooling and heat regeneration device comprises an engine body, a heat exchanger, an air purifier and a refrigerating device. The outside of the engine body communicates with a bleed air header pipe, and the end, away from the engine body, of the bleed air header pipe communicates with an inner cavity of the heat exchanger; a purification mechanism is arranged in the air purifier; according to the aircraft bleed air precooling and heat regeneration device, heat exchange can be carried out on bleed air airflow and fuel oil, the fuel oil can be preheated, the cooled bleed air airflow can enter an air-conditioning system of the airplane, meanwhile, air can be purified, air exchange work of a passenger cabin of the airplane can be completed, and the problems that a bleed air device used by an existing airplane is simple in function, heat from bleed air flow is wasted, and waste heat cannot be effectively utilized in the prior art are solved, so that the waste heat of the bleed air flow of the airplane can be effectively utilized, and the working efficiency of an airplane engine is improved.

Description

technical field [0001] The invention relates to the technical field of aviation equipment, in particular to an aircraft bleed air precooling and heating device and a method for using the same. Background technique [0002] Aircraft refers to a heavier-than-air aircraft that has one or more engines to generate forward thrust or pull, and the fixed wings of the fuselage to generate lift, and fly in the atmosphere. Aircraft bleed air is the process of drawing air from a suitable location in the compressor of an aeroengine into the cabin of the aircraft. Aircraft bleed air is generally bleed air at the first or last stages of the high-pressure compressor of the aeroengine, and then enter the precooler through the pressure regulating valve and overpressure valve to adjust the air temperature to the required air conditioner inlet temperature value. . On the other hand, the airflow introduced into the duct of the engine fan enters the precooler to cool the bleed air. [0003] At...

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of aircraft bleed air precooling heat recovery device and its use method, have the advantage that can make bleed air flow and fuel oil carry out heat exchange, fuel oil can be preheated, can effectively utilize the advantage of aircraft bleed air flow waste heat, It solves the problem that the bleed air device used in the current aircraft has relatively simple functions, wastes the heat from the bleed air flow, and cannot effectively use the waste heat

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