Metro vehicle compound air supply system

Abstract

The invention relates to a metro vehicle compound air supply system. The metro vehicle compound air supply system comprises a main air duct and branch air ducts arranged at two sides of the main air duct in a spaced mode. An air inlet connected with an air outlet of an air conditioning unit is formed in the top of the main air duct. Longitudinal partition plates with ventilation openings are symmetrically arranged inside the main air duct in the longitudinal direction to divide the main air duct into a main air duct cavity and lateral air duct cavities. Transverse partition plates are arrangedinside the lateral air duct cavities to divide the lateral air duct cavities into a plurality of static pressure cavities. Middle-roof air outlets are formed in the bottoms of the static pressure cavities. The branch air ducts are connected with the outer sides of the static pressure cavities in the corresponding positions. According to the compound air supply system adopting a multi-angle air supply method combining top supply and lateral supply, the flow velocity of the air in the middle of a compartment is lowered, and the flow velocity of the air in door areas and window areas is improved. Splitter plates are arranged inside the static pressure cavities and at the outlets of the branch air ducts, so that the air outlet uniformity of each single opening is improved. Therefore, the metro vehicle compound air supply system improves the comfort of passengers in the middle area, door areas and window areas of the metro compartment and the air outlet uniformity of each single opening, and meanwhile installation of the air ducts is convenient.

Description

technical field [0001] The invention relates to a composite air supply system for subway vehicles and belongs to the technical field of rail vehicle air conditioning systems. Background technique [0002] The subway air-conditioning duct transports the air treated by the air-conditioning unit to the compartment. The air supply angle of the existing air-conditioning air supply system in the industry is relatively single, and the air is mainly supplied from both sides of the roof in the compartment, resulting in uneven distribution of the wind speed field and temperature field in the width direction of the compartment, especially for passengers in the door area and seat area slightly less comfortable. Therefore, it is necessary to consider air supply to the passenger room from multiple angles. [0003] For conventional subway cars, an air supply channel is installed above the middle roof, and the diffusers on both sides of the built-in middle roof are used to supply air to t...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is mainly to provide a composite air supply system for subway vehicles, which uses multi-angle air supply combined with top delivery and side delivery, and reduces Improve the air flow rate in the middle of the compartment and increase the air flow rate in the door area and window area

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