Air purification system of rail vehicle

Abstract

Disclosed is an air purification system of a rail vehicle. The system comprises a purification unit, a monitoring unit and a control unit; the purification unit comprises an ordinary purification device and a reinforcement purification device which are located in a container ventilation system; the monitoring unit comprises an in-vehicle air monitoring device and an out-vehicle air monitoring device; the control unit includes a fresh air inflow controller and a return air inflow controller; the fresh air inflow controller can control the flow rate of inflow of fresh air in the container ventilation system and the purification device which the inflow fresh air is about to pass through, and the return air inflow controller can control the flow rate of inflow of return air in the container ventilation system and the purification device which the inflow return air is about to pass through; the control unit controls mediums of the fresh air inflow controller, the return air inflow controller and the reinforcement purification device to prevent the work of a discharger according to monitoring results of the in-vehicle air monitoring device and the out-vehicle air monitoring device. The air purification system can select the amount of fresh air and return air according to the air quality inside and outside the vehicle and targetedly and efficiently purify the air in a vehicle body.

Description

technical field [0001] The invention relates to an air purification system for rail vehicles, belonging to the technical field of air purification for rail vehicles. Background technique [0002] As an important means of transportation, rail vehicles play a very important role in our country. The train compartment is a densely populated and relatively closed space, and the gas environment in the train compartment directly affects the comfort of passengers. Both the air quality in the carriage itself and the air quality of the fresh air introduced through the air conditioning system will affect the gas environment in the train carriage. [0003] The air-conditioning system adopts a mixed ventilation method, most of which is the return air in the car, and the fresh air content is relatively small. The car has long-term lack of effective ventilation, and there are many air pollutants such as formaldehyde, toluene, and germs in some cars. High carbon dioxide levels affect pass...

AI Technical Summary

Problems solved by technology

The air filtration method of the current rail vehicle air conditioning system is a non-woven filter, which can only remove some dust with a large diameter, but cannot remove small particle pollutants such as PM2.5 and industrial waste gas, etc.

Patent CN105172818A etc. also disclose some air purifiers designed for rail trains, but these air purifiers cannot carry out targeted evolution according to the air quality inside and outside the train

Images