An air-conditioning system with down-supply and up-return air passages suitable for civil airliner cabins

Abstract

The invention discloses an air-conditioning system provided with a bottom supply and top return air flow channel for a civil airplane cabin. The air-conditioning system comprises air supply openings, air return openings and an environment control system of the civil airplane cabin. The air supply openings are formed in the bottoms of passenger seats and the aisle floor of the cabin. The air return openings are formed in the top or / and the side wall of the civil airplane cabin. The air supply openings are connected with an air supply pipeline of the environment control system of the civil airplane cabin, and the air return openings are connected with an air return pipeline of the environment control system of the civil airplane cabin. The air supply openings in the aisle floor of the cabin are set to be normally open. A pressure control air supply system is arranged at the lower parts of the passenger seats, and an air quantity control system is arranged at the upper parts of the passenger seats. Fresh air is supplied to the air supply openings in the bottoms of the passenger seats through the environment control system of an airplane, then is entrained to a breathing zone through the heat plume of passengers and finally is supplied to the air return openings in the top of the civil airplane cabin, and therefore the air flow channel is formed. Compared with traditional air flow distribution of the civil airplane cabin, the air-conditioning system has the advantages that pollutants can be removed more efficiently, and the energy consumption of fresh air treatment of the environment control system can be lowered.

Description

technical field [0001] The invention relates to the airflow organization design of the cockpit of a civil passenger plane, in particular to an air conditioning system suitable for the cockpit of a civil passenger plane. Background technique [0002] At present, civil aviation transportation, as one of the modern modes of transportation, plays an increasingly prominent role and is an indispensable means of transportation. The survey shows that about 25% of the passengers in the cockpit are dissatisfied with the thermal environment in the cockpit. Due to the special means of transportation of the aircraft, passengers need to spend a short journey ranging from a few hours to tens of hours in a very limited free space, so the comfort and health of the cabin environment are particularly important. [0003] The airflow organization of the cockpit of a common civil airliner adopts a mixed air supply system. This airflow organization will form an obvious vortex flow in the cabin an...

AI Technical Summary

Problems solved by technology

This makes the distribution of airflow velocity around passengers in different positions in the cabin uneven, resulting in poor thermal comfort

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