Subway compartment displacement ventilation device and control method

Abstract

The invention discloses a subway compartment displacement ventilation device comprising an air supplying unit arranged at the bottom of a seat. The air supplying unit comprises an air supplying box which is provided with a cavity and is of an open structure, an air supplying pipe arranged on one side wall of the air supplying box, and a fan arranged at the end of one side of the air supplying pipe; the first end of the air supplying pipe communicates with the cavity, and the other end of the air supplying pipe communicates with outside air in a dissociating mode; the fan pumps the outside airinto the cavity through the air supplying pipe, an open opening of the air supplying box is provided with a separating assembly used for separating and permeating of the air; the inner wall of the airsupplying box is provided with two arc-shaped guiding plates, the first ends of the two arc-shaped guiding plates are in butt joint with the air supplying pipe, and the second ends of the two arc-shaped guiding plates extend onto the separating assembly; and the first ends and the second ends of the arc-shaped guiding plates perpendicularly extend relative to the separating assembly. The subway compartment displacement ventilation device at least has the following advantages that the uniformity of air supplying can be well ensured, and the comfortableness of passengers is improved.

Description

technical field [0001] The invention relates to the technical field of displacement ventilation, in particular to a displacement ventilation device and a control method for subway cars. Background technique [0002] Displacement ventilation mainly works on the principle of extrusion. At present, the air-conditioning air supply system of subway cars in my country mainly adopts a mixed ventilation method (air supply from the upper part of the carriage, return air from the upper part; hereinafter collectively referred to as upper supply and upper return). , the distribution of airflow in the cabin is not reasonable, resulting in uneven distribution of parameters such as temperature in the cabin, which cannot meet the requirements of passengers for thermal comfort. [0003] The up-supply and up-back mode mainly works according to the principle of dilution. In this ventilation mode, the air supply port is installed on the ceiling or the side wall, and then the air is sent into the...

AI Technical Summary

Problems solved by technology

The above-mentioned ventilation method is difficult to achieve uniform air supply, and the temperature and other parameters in the cabin are not evenly distributed, and the comfort of passengers is poor.

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