Helicopter temperature regulation and oil tank explosion-proof system

A technology of temperature regulation and explosion-proof system, which is applied in the direction of fuel tank safety measures, aircraft parts, air treatment equipment, etc. It can solve the problems of hollow airborne fiber membrane inertization, large total system mass, and large compensatory load, etc., and achieve light weight , high coefficient of performance, and simple installation

Active Publication Date: 2021-08-10
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

However, there are still some problems with this technology, such as the need to bleed a large amount of air from the engine, resulting in a large compensatory load; the inertness of the hollow airborne fiber membrane cannot be used, and the total mass of the system is too large

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  • Helicopter temperature regulation and oil tank explosion-proof system

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] The invention adopts the coupling mode of two-stage airborne evaporative cycle refrigeration and inert gas phase space on the upper part of the cooling oil tank to realize the temperature adjustment of the helicopter and the explosion-proof of the oil tank. Such as figure 1 As shown, the two-stage evaporative refrigeration cycle system mainly includes a first-stage compressor 1, a second-stage compressor 27, a condenser 4, a first-stage expansion valve 8, a second-stage expansion valve 20, a first-stage evaporator 13 and The second-stage evaporator 25; the cooling oil-gas inertization module mainly includes an air extractor 32, a second-stage evaporator 25, a pressure regulating valve, an oil separator, an oil tank and two solenoid valves; the cockpit module includes a fan 14, an electric compressor 18 and exhaust valve 19. T...

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Abstract

The invention discloses a helicopter temperature regulation and oil tank explosion-proof system which comprises a first-stage compressor, a condenser, a second-stage compressor, a first-stage evaporation refrigeration cycle system, a second-stage evaporation refrigeration cycle system, a cooling inerting module, a cabin pressurization system and a main controller. The first-stage evaporation refrigeration cycle system is connected with the cabin pressurization system, and a generated cooling capacity is used for reducing the temperature of a passenger cabin and a cabin; the second-stage evaporation refrigeration cycle system is connected with the cooling inerting module; the cooling inerting module is used for inerting liquid fuel oil in an onboard oil tank; and high-temperature and high-pressure refrigerant steam output by a first-stage compressor is condensed through a condenser and then subjected to pressure reduction treatment, one part of the steam is output to a first-stage evaporation cold circulation system, and the other part of the steam is output to a second-stage evaporation cold circulation system. The system solves the problem of insufficient air entraining pressure of the helicopter, reduces the total weight of an environment control system and an inerting system, and has the advantages of simple structure, reliable performance, safety, environmental protection and convenience in installation and maintenance.

Description

technical field [0001] The invention relates to a temperature regulation and explosion-proof system, in particular to a helicopter temperature regulation and fuel tank explosion-proof system. Background technique [0002] With the opening of low-altitude airspace in our country, the future development potential of civil helicopters is huge. In recent years, helicopters have been widely used in law enforcement, ambulance, agriculture, military, transport patrol, tourism and so on. A helicopter is an aircraft that is powered by a turbine engine in the form of a rotating output shaft and directly drives the rotor through a mechanical transmission system to generate lift and propulsion. It is a flight action that cannot be accomplished by conventional fixed-wing aircraft. As a special-purpose aircraft, the improvement and perfection of helicopter equipment has always been the key development goal of various countries. Installing the environmental control system on the helicop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D13/02B64D37/32
CPCB64D13/02B64D37/32Y02T50/40
Inventor 刘冠男彭孝天王立群潘江丽周文俊冯诗愚
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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