Special renovation of air conditioning for plateau trains

"At present, it is a critical period of wind season and epidemic prevention and control. We must carry out fine inspection and repair to ensure high-quality operation of air conditioning system." On March 10, at the early handover meeting of the air conditioning team in the tram room of Xining depot, Yang Yingchang, the foreman, told everyone.

China Railway Qinghai Tibet Group Co., Ltd. has scientifically formulated the air conditioning renovation plan for passenger trains in combination with the reality of passenger train servicing in spring and the shutdown of some trains during the epidemic. It plans to carry out comprehensive inspection and renovation of 6 crh5g EMUs and 920 passenger trains from February 22 to April 20, so as to create a safe and comfortable riding environment for passengers.

Three special maintenance groups were set up for the vehicle system of Qinghai Tibet group company to sort out and summarize the faults prone to the air conditioning system of passenger trains, organize technicians to analyze the causes of the faults, establish a special problem bank, and carry out special reinforcement training for weak links such as ventilation and refrigeration of the air conditioning system, so as to effectively improve the technical level of maintenance personnel.

There is a large amount of sand in spring in the Qinghai Tibet Plateau. The cleaning quality of air conditioning filter directly determines the quality of air conditioning and ventilation. Qinghai Tibet group company refine the maintenance process, strictly implement the maintenance standards, adopt the maintenance method of foreman's guarantee and registered type, increase the cleaning frequency of filter screen, test the air conditioning system one by one, check the status of return air network, evaporator network, four in one control cabinet and refrigeration system by pulling the net, check, clean and disinfect the evaporator and condenser of air conditioning in time, and ensure the air conditioning system In good condition. So far, they have completed the air conditioning renovation of 235 passenger cars.

At the same time, in combination with the epidemic prevention and control work, Qinghai Tibet group company strengthened the patrol inspection of the air conditioning system during the operation of the train, so as to make the air conditioning device in working condition throughout the whole process and ensure the good ventilation effect of the carriage.