Cleaning of catenary insulators in Golmud overhaul work area
At 8:00 on October 4th, when the first ray of morning light appeared in the sky, the yard of the Golmud overhaul in the Xining power supply section was already very lively. The driver of the operation vehicle was checking the condition of the operation vehicle and washing the vehicle in an orderly manner, and the catenary worker was counting the tools and materials. After a string of crisp bells, the pre-class division was held on time.
"Today's work is to clean the catenary insulators from No. 0011 to No. 0135 on the Qinghai-Tibet Railway from Chaerhan to Golmud East. The operation time is from 11:45 to 13:45. Ni Peidong is responsible for station liaison, and Ma Bin is responsible for the scene. Protection, pay attention to personal safety during the cleaning process, and stop work in time when the adjacent line comes." Foreman Wang Jing began to arrange the day's work.
After intense preparations, at 7:55, the catenary operation vehicle slowly drove out of Golmud Station, facing the rising sun, heading for Chaerhan Station, 65 kilometers away. According to regulations, they must arrive at the work station to stand by 1 hour before the start of the work. The Qinghai-Tibet Railway passes through the Chaerhan Salt Lake from east to west. Because the insulators of the railway catenary are exposed all the year round, and the air salt content in the salt lake area is high, the salt pollution formed on the surface of the insulators is likely to cause pollution flashovers in rain and snow, affecting the power supply equipment. safe operation. In order to ensure the safety and stability of the equipment, the Xining Power Supply Section of Qinghai-Tibet Group Corporation cleans the 140,000 catenary insulators in the Salt Lake section every spring and autumn.
After an hour of operation, the catenary operation vehicle ran to the skylight operation site Chaerhan Station at 9:00 to wait for the operation order to be issued. At 11:45, the "skylight" order was issued. The washing car moved slowly at a speed of 5 kilometers per hour. The two employees on the car were wearing safety helmets and rain-proof insulating clothing. They looked up and stared at the insulator. Go to the sky, wash the catenary insulators 6 meters above the ground, and the insulators are quickly exposed to bright red from the original gray as the water rises and falls. For the insulators on the outside of the line that cannot be touched by the water flushing gun, they climbed to the top of the pillars and scrubbed them with a small watering can and a towel. At the job site, the "cici" sound of the water gun, the answering sound of the walkie-talkie and the roaring sound of the work truck came one after another.
"When we clean the insulators, we will encounter many difficulties. If the water flow from the high-pressure water gun encounters strong winds, it will be like a heavy rainstorm on the platform. Even if they wear raincoats, the whole body of the staff will be wet. Because The water pressure sprayed by the high-pressure water gun is very high. In order to clean it, the operator of the platform water gun needs to keep shaking his arm to ensure that the water flow sweeps the insulator without leaving a dead angle. Each person has to wave the brush more than 20,000 times a day, especially when it is cold. In the late autumn, the temperature at night is below 0 degrees Celsius. Although they wear waterproof clothes, they will still get wet clothes. The hardships can be imagined. After each washing operation, everyone is too tired to lift their arms, and their hands are numb when eating. It's shaking." Gao Qihong, deputy director of the Golmud overhaul workshop, shared the hard work of cleaning the insulators.
"In the past, we used rags, kettles and high-pressure water guns. Now we use water to wash the car. We have updated our cleaning equipment to the third generation, and each generation is stronger than the next generation." Wang Li, a workshop worker, introduced that the water washing car was pulled by a catenary rail car. , flush the catenary insulator equipment at a speed of 5 to 10 kilometers per hour. In the tense "skylight" operation, the water washing vehicle has high operation efficiency, good washing effect and low labor intensity, which is a powerful tool to protect the safety of railway transportation. At exactly 14:45, the three-hour "skylight" came to an end, and the work truck slowly parked in the middle of the 7th track of Chaerhan Station. When they took off their safety helmets, the workers looked like they had just been pulled out of the water, their hair was wet, and their work clothes were already soaked in sweat and clinging to their bodies. Everyone took off their gloves, briefly wiped the sweat from their heads, and started to eat the lunch they brought in the morning. The day's homework came to a successful end.