Vehicle cabin negative pressure isolation system

Abstract

A vehicle cabin negative pressure isolation system comprises a high-pressure air curtain air supply subsystem and a negative pressure air collection and exhaust subsystem. The high-pressure air curtain air supply subsystem can be arranged in a cabin ceiling and comprises a high-pressure air curtain air supply pipeline, a high-pressure air curtain air supply port and a booster fan. One side of the high-pressure air curtain air supply pipeline is connected to a main air supply pipeline of the vehicle air distribution system, the high-pressure air curtain air supply port is formed in the other side of the high-pressure air curtain air supply pipeline, and air flow sent out forms an air curtain from top to bottom so as to form an isolation area; the negative-pressure air collection and exhaust subsystem can be arranged below a cabin floor and comprises a negative-pressure air collection tank, an exhaust pipeline, an exhaust port and an exhaust valve, one side of the exhaust pipeline is connected to the negative-pressure air collection tank, and the other side of the exhaust pipeline is connected to the exhaust valve; the exhaust outlet is formed in the top of the negative-pressure gas collection tank; and the negative pressure gas collection tank is arranged on a region corresponding to the gas curtain isolation region. By means of the system, an air curtain isolation area can be formed to reduce the infection risk, and the system can be connected with an original ventilation system to achieve conversion under different conditions of epidemic prevention.

Description

technical field [0001] The present invention relates to an air-conditioning system of a vehicle, in particular to an air-conditioning system for providing an anti-pollution isolation space in a cockpit of a vehicle such as an airplane or a train. Background technique [0002] Existing means of transportation, such as taking civil aircraft as an example, its air distribution system usually adopts the ventilation mode of air supply from the top of the cabin and exhaust from the bottom. In order to reduce the air supply to the engine, the aircraft is usually equipped with a recirculation system, that is, part of the cabin exhaust is filtered by the recirculation system and then returns to the cabin to participate in air circulation. At the same time, although the existing aircraft cockpit is divided into different classes such as first class, business class, and economy class, and separate air supply and exhaust are used between different class cabins, in the entire aircraft ca...

AI Technical Summary

Problems solved by technology

However, this existing technology only arranges pipelines in some areas, instead of setting up the overall air supply and exhaust isolation system on the machine, and needs to entrain the air in the areas on both sides of the smoking room, and cannot realize the isolation of air supply and exhaust between areas

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