“铁板烧”上的列车“清肺医生”：高温下守护旅客清凉出行
炎炎烈日下，兰州车辆段的客车整备场宛如一座巨大的“铁板烧”，车顶温度近60摄氏度，热浪滚滚。然而，一群身穿工作服的“清肺医生”却在车顶上忙碌着，他们冒着酷暑，对列车空调进行检修保养，为旅客的清凉出行保驾护航。
他们是兰州车辆段的空调检修作业人员，在暑运出行高峰期，他们将列车空调附属装置的检修频率由原来的2趟检修1次，调整为每趟检修1次，确保每一辆上线运营的列车设备正常。
空调机组对旅客列车而言，就像是人的“肺”，不仅起着制冷作用，更重要的是对车体通风换气。在列车行驶的过程中，空调机组不断把车外新鲜空气吸入到车内，再把车内的空气排到室外，实现车厢内部与外界环境之间的气体交换。
“压缩机、气液分离器等部件在长时间的高温运转下，容易因积灰、散热不良等原因，造成制冷效果差，需要我们不定期对空调机组内外进行清理。”空调检修作业负责人马方正说道。
为了完成对一列车的空调检修，他们需要爬上4米多高的车顶，在近60摄氏度的烈日下，对制冷系统、管系、压缩机组接线、冷凝器、蒸发器、伴热系统等进行检查，汗水浸透了他们的衣衫。
完成车顶的检查项目后，他们还要钻进车厢检查配电柜状态。此时，经历了几个小时暴晒后的车厢就像一个“大蒸笼”，配电柜触摸显示屏显示，车内配电室温度达51摄氏度。
“暑运出行高峰，遇到持续气温，保证列车运行过程中空调的正常运转极为重要，作为空调的第一把关人，我们的责任就是确保每一节上线运行列车的空调状态良好。”同为空调检修作业人员的马志驰一边检查一边说道。
在火热的整备场上，像他们这样在“大火炉”中穿梭的“清肺医生”还有很多。整个暑运期间，他们每个人每天来回穿梭在股道之间，检查近9列130多辆车的空调和电气设备，用自己的汗水和辛劳，守护着旅客的清凉出行。
英语如下：
“Iron Plate” Train and “Lung-Cleaning Doctors”: Keeping Passengers Coolin the Heat
Keywords: Train lung cleaning, air conditioning maintenance, Lanzhou Rolling Stock Depot
Content:
Under the scorching sun, the passenger car preparation yard of the Lanzhou Rolling Stock Depot resembles a giant “iron plate,” with temperatures on the roof reaching nearly 60 degrees Celsius. Heat waves roll over the yard. However, a group of “lung-cleaning doctors”in work clothes are busy on the roofs, braving the scorching heat to maintain and repair the train’s air conditioning systems, ensuring a cool journey for passengers.
These are the air conditioning maintenance personnel of the Lanzhou Rolling Stock Depot. During the peak travel season, they have adjusted the frequency of air conditioning auxiliary device inspections from once every two trains to once per train, ensuring that every train in operation has normal equipment.
Air conditioning units are like the “lungs”of passenger trains, not only providing cooling but also essential for ventilation. While the train is in motion, the air conditioning units continuously draw fresh air from outside into the carriages and then exhaust the air inside to the outside, achieving air exchange between the carriage interior and the external environment.
“Compressors, gas-liquidseparators, and other components are prone to poor cooling effects due to dust accumulation and poor heat dissipation during prolonged high-temperature operation, requiring us to clean the inside and outside of the air conditioning units regularly,” said Ma Fangzheng, the head of air conditioning maintenance.
To complete the air conditioning inspection of a train,they need to climb onto the roof, which is over four meters high. Under the scorching sun of nearly 60 degrees Celsius, they inspect the refrigeration system, piping, compressor unit wiring, condenser, evaporator, and heating system, their clothes soaked in sweat.
After completing the roof inspections, they need to crawlinto the carriage to check the status of the electrical distribution cabinet. By this time, the carriage, after hours of exposure to the sun, is like a “large steamer,” with the electrical distribution cabinet’s touch screen displaying a temperature of 51 degrees Celsius inside the electrical room.
“During the peak travelseason, when there is continuous high temperature, it is crucial to ensure the normal operation of the air conditioning system during train operation. As the first line of defense for air conditioning, our responsibility is to ensure that the air conditioning system of every train in operation is in good condition,” said Ma Zhichi, another airconditioning maintenance worker, while checking the equipment.
In the fiery preparation yard, there are many “lung-cleaning doctors” like them, shuttling through the “large furnace.” Throughout the peak travel season, each of them shuttles back and forth between the tracks every day, inspecting the air conditioning and electrical equipment ofnearly nine trains, over 130 carriages, using their sweat and hard work to ensure a cool journey for passengers.
【来源】http://www.chinanews.com/sh/2024/08-23/10273739.shtml
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