Steps of pipeline repair in construction
The open pipeline is narrow and the air is pure, so it is not convenient to fix the pipeline at a fixed point, and it is easy to form a safety hazard for the maintenance personnel in the well. Wuhan's "Sixth Urban Drainage Pipeline Inspection and Evaluation and Trenchless Repair Professional and Technical Post Training Course" learned that a point pipeline repair consumed by foreign enterprises can solve this problem.
With the increasingly rapid establishment of drainage equipment in the city, the acceptance of new pipe networks, the troubleshooting of old pipe networks and the daily maintenance, the workload is heavy, the difficulty is great, and the request is high. Intelligent equipment will certainly show its ingenuity and help to open the pipe network.
Generally speaking, the repair of open pipelines is mainly aimed at pipeline damage and misplacement, while the point repair of ordinary workers' point repair is not only time-consuming, but also has great safety risks.
After research and development last year, a point pipeline repairer was officially launched in the first half of this year. Through computer operation, the staff can control the robot's repair time in the pipeline, and at the same time, they can use the display device to view the clear images sent back in the pipeline. They can not only do "gastroscope" for the sewer pipeline, but also have a target according to the "condition".
The staff tied the glass fiber cloth soaked in epoxy resin to the repair with fine iron wire in advance, dragged it to the "disease" of the pipeline through the crawling robot, inflated it to the repair after positioning, made the data cling to the inner wall of the pipeline after shrinking, solidified the resin to form a composite inner liner with a certain strength under the action of ultraviolet light, and covered the damaged part of the pipeline, The curing time can be controlled throughout the process, and the curing process can be seen without personnel entering the pipeline.
Taking a damaged part of the pipeline as an example, the ordinary point repair requires 60 minutes, while the application of the light curing repair robot to stop the point repair of the pipeline is 5 times faster than the ordinary point repair, and it can also reflect the repair condition to the mobile end in real time, to minimize the traffic inconvenience caused by municipal construction and other disturbances, to maintain the service life of the pipeline, delay crack damage Restore the normal operation of the pipe network.