The broken pipeline is near the entrance of the First People’s Hospital of Jianshe Road. The maintenance team is digging the sidewalk floor after closing the valves along the pipeline.
When Yang Zhiye arrived, he found that he had excavated the pipeline, which was old-fashioned iron water pipe. After more than ten years of installation, it was rusty now.
Yu Yusi, the captain of the maintenance team, hurried to climb from the pit. "There is a gap in the sewage drain near Yang, which washed away the sand around the water pipe. If the weather is cold, it will easily freeze and crack."
"You have worked hard to repair it as soon as possible."
"It may take two days to replace the main water pipe in Yang Zong," especially Yusi replied awkwardly
When Yang Zhiye heard this, he couldn’t help but have a headache. Suddenly he patted his forehead. "Didn’t you send a batch of emergency maintenance pipes and equipment when you used snail industrial equipment?"
A face of Meng force especially in thinking some unprepared "er … Yang Zong we don’t have the equipment and don’t know how to make it"
"Didn’t you say that if you can’t connect with snail industry?"
Naiyusi can send someone to the warehouse for more than 20 minutes. After that, the snail industry left here for emergency maintenance of pipelines and maintenance equipment, and it was pulled to the emergency repair site.
The repairmen hurried to look at it and found it very simple.
"Cut the frozen pipeline quickly."
The gas torch quickly cuts off the cracked section of the pipeline, and then the steel wire polisher polishes the surfaces of the pipelines on both sides.
Another repairman burned a red iron ring into the surface of the pipeline, and when the iron ring cooled, it would cling to the surface of the old pipeline because of thermal expansion and cold contraction.
For the purpose of matching emergency maintenance pipes, the set of iron rings was also heated, and the emergency maintenance iron pipes were inserted into two old pipes and naturally cooled for more than ten minutes. The emergency maintenance pipes and the old pipes were firmly buckled together.
In this case, it is not guaranteed that the pipeline joint will expand when heated and contract when cooled due to seasonal temperature changes.
The joint repairman sets an insulator similar to an automobile tire tightener to ensure that the seal protector will not leak.
You Yusi poured pure water according to the instructions, then took out a bottle of white powder and poured it into the pot.
Finally, insert the guide rod into the solution.
"all come"
To avoid contact, everyone left the tunnel.
You Yusi shouted "Tong"
The plating agent in the filter quickly reacts and condenses to the metal pipeline in the soaked solution, and a layer of silicon nano-coating will cover the surface of the pipeline.
After five minutes, it was ensured that the plating agent was exhausted before stopping.
When the plating maintenance ring was removed, the silver gray of the semi-transparent coating was exposed, especially when Yusi picked up the hammer and knocked it, it was found to be very hard.
"Continue to plate this section."
After more than two hours of busy back and forth, the surface of the old pipeline and emergency bushing was finally coated with a layer of silicon nano-coating.
After hitting several gates along the way, tap water quickly passed through the maintenance section.
"How is Laoyou?"
"There is no water leakage problem for the time being, and there is no deformation at the casing."
Yang Zhiye breathed a sigh of relief.
Immediately, the maintenance team repaired the sewage drain and covered the pipeline with insulation layer to avoid being frozen again.
After pumping the muddy water from the tunnel and backfilling a part of sand, the water pipe has been buried by sand for more than one meter, further increasing the heat preservation capacity.
Next, it is necessary to repair the sewer and fill in the pipeline with sand layer of more than one meter, which will be the frozen line of the basement layer.
Looking at the dark weather and covered in mud, Yang Zhiye, a repairman, ordered, "It is estimated that it will take a day or two for Lao You to take over the finishing work."
"good"
Yang Zhiye took out 3 yuan from his pocket "to take a bath and have a meal with his brothers".
"Thank you, Yang Zong"
A group of maintenance workers hurriedly changed their clothes and packed their tools to enclose the pit guardrail and pull warning belts and warning flashing lights.