High-speed EMU air-conditioning duct system

Abstract

The invention relates to an air conditioning air duct system of a high-speed motor train unit. The air conditioning air duct system of the high-speed motor train unit comprises an air conditioning unit, wherein the air conditioning unit is communicated with an air-supply outlet and an air-return inlet which are arranged in a train through an air-supply duct and an air-return duct, and the air conditioning unit is communicated with a fresh air port through a fresh air duct. The air-supply duct comprises a middle-top air-supply duct arranged in the central area on the top of a train body and / or side-top air-supply ducts arranged in the side-top areas on two sides of train body, and a plurality of air-supply outlets are evenly formed in the middle-top air-supply duct and the side-top air-supply ducts. According to the air conditioning air duct system of the high-speed motor train unit, air is supplied from the center and two sides of a coach of the train and returns from one end of the coach of the train, air motion and air distribution in the whole train are benefited, therefore air distribution in the train is uniform, the uniformity and stability of temperature, humidity, air speed and cleanliness in the train are guaranteed, and the requirement of comfort of passengers is met. Besides, an indoor machine is arranged at one end of the coach of the train, the air-return inlet is arranged on the position near the indoor machine, thus air return resistance is reduced, noise inside the train is reduced, and comfort in riding the train is improved.

Description

technical field

[0001] The invention relates to an air-conditioning air duct system, in particular to an air-conditioning air duct system used on higher-speed EMUs, and belongs to the technical field of rail vehicle air-conditioning manufacturing. Background technique

[0002] In medium and high-speed EMUs, each car is generally equipped with two air-conditioning units, each air-conditioning unit adopts a unit structure, and the air-conditioning unit is arranged at the bottom of the car body, and a ventilation device is also installed at the bottom of the car body. The air conditioning unit is connected to the air supply outlet and return air outlet in the car through the air supply duct and the return air duct. The return air outlet is provided with a waste air outlet in the bathroom and the passage table, and the waste air outlet is connected with the ventilation device through the waste exhaust duct, and the ventilation device is connected with the fresh air inlet at the ...

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