"Emergency" doctor at high temperatures

Jimu News reporter Huang Yongjin

Video editing Huang Yongjin

Correspondent Li Li Yan Jie Yang Ming

Intern Hu Yutong

In the past 8 years, he insisted on judging the failure of the vehicle in the shortest time, and then "the right medicine" to allow the vehicle to return to normal driving.

His name is Liu Hejie, and the leader of the three companies of Wuhan Public Transport Group.

At noon on July 13, Wuhan's temperature has reached 36 degrees. In the Gutian warranty workshop in Wuhan Public Transport Group, Liu Hejie received the for help from the bus driver. The other party claimed that the vehicle battery alarm had to be suspended and returned to repair.

Liu Hejie took a laptop and detected the vehicle electromechanical system to judge that the battery thermal management system had a failure. Liu Hejie told Jimu Journalist that there was a small "air conditioner" system to cool the battery. Once the small air conditioner failed, it would cause abnormal battery temperature. If it was light, it was poorly exposed, and the high temperature of the battery caused the vehicle to stop. Speaking, Liu Hejie and the worker Jiang Qi took the tools into the ground groove under the car, and the reporter followed him.

Liu Hejie tested the vehicle mechanical and electrical system (the picture was provided by the correspondent)

Just now, I just felt a heat wave rushing to face. The chassis of the vehicle after driving touched the hot hand, and the mercury thermometer had reached 42 degrees. Liu Hejie opened the cover. In the cycle system for the battery, the surface temperature of the water outlet pipe reached more than 50 degrees, and people were like staying in a "steamer". The large sweat beads flowed down his face, and Liu Hejie tested it together to judge that it was caused by the leakage of the pipeline, the water circulation in the cooling system was not smooth, causing gas resistance, and the failure caused by the strike of the cooling system.

Half an hour later, Liu Hejie checked the leakage point and cooperated with Jiang Qi's division of labor. He immediately "ligated" the fastener card, discharged the air, and determined whether the air in the pipeline was exhausted through the finger. After the failure was eliminated, the "small air conditioner" was running smoothly, and the cooling effect was well played, and the vehicle immediately returned to normal. Liu Hejie and Jiang Qi worked for nearly 40 minutes in a row, and their work clothes could already be screwed with water.

Liu Hejie is 31 years old and has worked for 8 years. He is a party member. He told reporters that his daily work was to "see the emergency" for the bus, and every time he strived to judge the failure of the vehicle in the shortest time, and then "the right medicine" was "right" to return it to normal. Sometimes a failure to detect for one or two hours, plus the failure of the failure, staying in the ground tank for several hours is common.

Li Jun, deputy manager of the warranty branch, told reporters that Gutian's warranty workshop is also creating a good working environment for employees working at high temperatures. Several large fans have been added in each work area. Drink for employees for cold drinks.

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