External variable-cross-section balanced ventilation system for rapid trains

Abstract

The invention discloses an external variable-cross-section balanced ventilation system for rapid trains. The external variable-cross-section balanced ventilation system comprises an air-conditioning unit, a variable-cross-section main air supply channel, at least one secondary air supply channel and an air return channel, wherein the variable-cross-section main air supply channel is arranged on a longitudinal central line of a train body, and one end of the air supply channel is connected with an exhaust end of the air-conditioning unit; the secondary air supply channels are arranged on two longitudinal sides of the main air supply channel and are provided with at least one air supply opening; the end part of the air return channel is connected with an air inlet end of the air-conditioning unit, and the air return channel is provided with at least one air return opening; the secondary air supply channel is connected with the main air supply channel through a spiral air pipe; and the secondary air supply channel and the air return channel are communicated with areas to be supplied with air in carriages respectively through the air supply opening and the air return opening. The external variable-cross-section balanced ventilation system has the beneficial effect that in a long and narrow carriage, because the length of the main air supply channel and the length of the secondary air supply channel are equal to the length of the areas to be supplied with the air and a single-pore-plate regulating device is arranged on a connecting part between the spiral air pipe and the main air supply channel, equivalent air is ensured to be supplied to various areas, so that the uniformity in air supply is enhanced and the traveling comfortableness is guaranteed.

Description

technical field [0001] The invention relates to an air-conditioning air supply system, in particular to an air-conditioning air supply system applied to high-speed rail vehicles. Background technique [0002] Ventilation systems are very important components in various interior environment control systems including high-speed trains. In order to reduce strong turbulence and noise, good sealing measures are generally taken in the compartment. Due to the high density of people in the train and the long and narrow space in the train, it is necessary to supply the same amount of air to each area along the length of the train to achieve uniform air supply. The existing air supply system cannot be regarded as a uniform air supply in a complete sense. However, high-speed trains are different from ordinary passenger trains, and their sealing requirements are higher than those of ordinary carriages. Due to the increasing difficulty of controlling the air environment in the train, ...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide an external variable cross-section uniform air supply system for high-speed trains that overcomes the uneven air supply in the current narrow and long carriages and improves the uniformity of the air supply so that the airflow in the carriages can be distributed reasonably and the ride comfort can be ensured.

Images