Replacement air supply system applicable to civil airplane

Abstract

The invention discloses a replacement air supply system applicable to a civil airplane. The replacement air supply system comprises a plurality of replacement air supply openings and one or more return air inlet, the replacement air supply openings are connected with an air box, the air box is connected with a passenger cabin air supply system, the replacement air supply openings are formed in a passenger cabin floor, and the return air inlets are formed in the internal top of a passenger cabin. The replacement air supply system has the advantages that design is reasonable, and a heat comfortenvironment in the passenger cabin is within an acceptable range. Compared with mixed air supply in a traditional passenger cabin, the heat removal and pollution discharge efficiency of the replacement air supply system is improved. Therefore, by the aid of the system, air supply temperature can be increased, air supply volume is decreased, and the quality of air in the passenger cabin is improvedbased on energy consumption reduction. The system can be applied to passenger cabins such as single-channel passenger cabins and double-channel passenger cabins.

Description

technical field [0001] The invention relates to a replacement air supply system, in particular to a replacement air supply system suitable for civil airliners. Background technique [0002] At present, civil airliners use the air supply system to control the structure of the air flow field in the cabin, thereby controlling the environment in the cabin. When studying the cabin environment, the two aspects of thermal comfort and air quality are the most concerned. Civilian airliners usually use mixed ventilation air supply systems to control the environment. Current research shows that this traditional air supply system is not effective in controlling airborne infectious diseases. On the basis of mixed air supply, most commercial aircraft will also use adjustable individual air supply outlets for passengers to directly send fresh air to the breathing zone of passengers, thereby improving the thermal comfort in the cabin. However, this method of mixed ventilation and personal...

AI Technical Summary

Problems solved by technology

However, due to the complex structure in the engine room, the displacement air supply system in the building cannot be directly applied to the engine room

Moreover, due to the limited space in the cabin, the floor of the corridor needs to be used by the stewardess and passengers to walk around, and the floor under the seats needs to place luggage. Therefore, the application of the floor air supply in the cabin also has multiple restrictions.

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