Aviation cockpit refrigeration/purification integrated system based on cockpit airborne energy comprehensive recycling

Abstract

The invention relates to an aviation cockpit refrigeration / purification integrated system based on airborne energy comprehensive recycling. The refrigeration / purification integrated system is characterized by comprising a combined airplane refrigeration bag assembly and a renewable purification assembly, wherein a four-flow heat exchanger is used for realizing the heat exchange of multiple flows of cold and hot air to recover the high-temperature heat source energy of the airborne refrigeration bag assembly and regenerate the renewable purification assembly, so that the introduction quantity of ram air is reduced, and further the flight resistance is reduced; the concentration of pollutant in recirculation air of the cockpit is reduced by the renewable purification assembly, therefore, the air quality of the cockpit is effectively improved so as to reduce the fresh air rate of the airplane and achieve the purpose of reducing the energy consumption of the airplane; because a rotating wheel purification regeneration mode is used by the renewable purification assembly, the working reliability of the system is high, and the system can be used for working for a long term without frequently replacing the assemblies; silica gel is used as a purification medium by the renewable purification assembly, which is suitable for low-humidity environment in the aviation cockpit, so that the air purification effect is better, and the regeneration temperature is low; and the recirculation air of the cockpit is used as regeneration air of the renewable purification assembly, and fresh air isnot used for regeneration, which is helpful to further reducing the airplane energy consumption.

Description

technical field [0001] The invention relates to a novel aircraft cockpit refrigeration / purification integrated system, which is suitable for combined use of cockpit temperature and humidity environment control and recirculation air purification of civil aircraft and transport aircraft. Background technique [0002] The aircraft refrigeration package system is an important subsystem of the aircraft. It has two functions: it is used to provide fresh air to the aircraft cabin, and to control the temperature of the air to reach an appropriate value before supplying it into the aircraft cabin. figure 1 A schematic diagram of a typical prior art aircraft refrigeration pack system and recirculated air system is shown. The fresh air 101 enters the aircraft refrigeration package system 102 from the engine bleed air (traditional aircraft) or high-altitude bleed air (more electric aircraft), and the recirculation air 105 of the aircraft is treated by the high-efficiency filter 108, and...

AI Technical Summary

Problems solved by technology

At present, the existing technology of civil aircraft is to use a high-efficiency filter, which has a better filtering effect on pollutants such as dust and other large particles, but this existing technology faces the following problems: it has no effect on gaseous pollutants such as VOC (volatile organic compounds), Therefore, the current aircraft use expensive fresh air and high ventilation efficiency to ensure the high air quality requirements of the cockpit, resulting in high energy consumption of the aircraft.

But make this invention can not be directly applied on the aircraft owing to there is following problem:

[0005] (1) Due to the shortage of on-board energy of the aircraft, fresh air outside the aircraft cannot be used as regeneration air;

[0006] (2) The aircraft cockpit is a pressurized cockpit (the pressure inside the cabin is 80kPa, and the pressure outside the cabin is 20kPa), so the regenerated exhaust gas cannot be directly discharged out of the cabin;

[0007] (3) Electric heaters cannot be directly used on the aircraft to heat and regenerate the regeneration side of the purification components, which will increase the energy consumption of the aircraft, and a new energy path must be found for regeneration heating;

[0008] (4) Since the aircraft cockpit is a closed space, the regenerated air (the recirculated air to be purified) and the regenerated exhaust gas are in the same space, the above two types of gases cannot be managed in an open manner, and closed gas pipelines must be used

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