Air supply system of airplane cabin

Abstract

Disclosed is an air supply system of an airplane cabin. The air supply system of the airplane cabin comprises an air source, a main air supply channel, first air supply openings, second air supply openings and a flow adjusting device. The main air supply channel is limited between a covering of the cabin and an inner trimming plate of the cabin and communicated with fluid of the air source. The first air supply openings are limited in the part, located above seats and below a luggage rack, of the inner trimming plate, communicated with the main air supply channel and used for supplying air to the upper parts of passengers. The second air supply openings are limited in the part, located below the seats of the cabin, of the inner trimming plate, communicated with the main air supply channel and used for supplying air to the lower parts of the passengers. The flow adjusting device is arranged in the main air supply channel and used for adjusting the flow ratio of air-conditioned air coming from the first air supply openings and air-conditioned air coming from the second air supply openings. The air supply system of the airplane cabin can meet the requirements for the temperature comfort of the cabin of the passengers under different environment temperature conditions and having different dressing characteristics and the passengers having different sensitivities to the temperature environment conditions around the cabin, improve the cabin temperature environment where the passengers feel cool in head and hot in foot in summer and feel hot in head and cold in foot in winter and avoid the phenomenon that temperatures in the cabin are layered.

Description

technical field [0001] The invention relates to an air supply system for an aircraft cockpit. Background technique [0002] Due to the wide range of commercial aircraft operations and the special operating environment, they will encounter various extreme weather, and different passengers have different requirements for the comfort of the cockpit. [0003] In summer, in some areas, the temperature is higher and the humidity is also higher. When the aircraft is on the ground, the skin temperature sometimes reaches above 50°C, and the air temperature in the cockpit of the aircraft will also reach above 40°C without the air conditioner turned on. However, when the aircraft is in the cruising state, the temperature of the outside atmosphere will gradually drop below -10°C. [0004] In winter, in some cold regions, the climate is cold, with low temperature and low humidity. When the aircraft is on the ground and in extremely cold weather, when the air conditioner is not turned ...

AI Technical Summary

Problems solved by technology

However, when the thermal load of the aircraft is small or negative, the temperature of the air around the passengers is relatively low, and the temperature of the air-conditioning air supply is relatively high. It feels that the air temperature is high and the air is relatively dry. When the air-conditioning air flows to the feet and legs of the human body, the temperature has dropped. Therefore, the passenger feels that the head is hot and the feet are cool. The temperature comfort requirements of the environment, which is the temperature stratification phenomenon in the cabin

[0008] The current air-conditioning air supply system of commercial aircraft is difficult to meet the human body's requirements for temperature and comfort

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