1. Pipeline positioning First, use ground-penetrating radar to detect the direction of the pipeline. After the node is excavated, use an active crawling camera robot to start from the node to determine the position, inner diameter and position of the elbow number node that is difficult to find on the ground inside the pipeline.

2. Pipe cleaning adopts PIG physical cleaning technology to clean the original pipe. For a small amount of solid deposits and obstacles, the Noula method can be used for continuous cleaning. After the pipe is cleaned, use the CCTV image system to think about the cleaning result. This process is an important part of the repair technology of the inner cross HDPE double-wall corrugated pipe. The cleaning result is to determine whether the six steps of HDPE double-wall corrugated pipe turning will not be scratched during the lining process, as well as to ensure maintenance.

3.PE water supply pipe manufacturer HDPE pipe welding equipment uses a hot melt welding machine to punch holes in the lining pipe and reflect on the quality. During the impact joint process, parameters such as temperature, pressure and time of the impact joint should be strictly controlled. The reasonable choice of different parameters during the welding process is the factor that determines the quality of the interface. Each weld will be numbered and the welding parameters and quality will be recorded. After the welding is completed, the tightness test of the HDPE pipe is carried out with a pressure of 0.1MPa to reflect the welding density of the HDPE pipe.

How to connect HDPE double wall winding pipe?

1. During the connection process of HDPE double-wall corrugated pipe interface, the manufacturer of HDPE double-wall corrugated pipe needs to clean the inside of the HDPE winding pipe. After cleaning, bring some lubricant to the inside of the hdpe double-wall winding pipe. The socket also needs to apply a certain amount of lubricant, and then align it with the shaft of the hdpe winding pipe socket.

2. Before connecting the hdpe double wall winding pipe joint, check the rubber ring to see if all the rubber ring support tools are in the correct position, and check the placement of the sealing rubber ring. At the same time, check the insertion depth of the hdpe double wall winding pipe joint.

3. The connection method of the hdpe double-wall winding pipe is to hang up the socket of the hdpe winding pipe with a cotton yarn rope, and then insert the base of the double-wall winding pipe around the hdpe with a long crowbar. The insertion method of the long crowbar is oblique insertion. At the same time, plug the baffle in the middle of one end of the hdpe winding pipe, and then slowly enter the desired position of the hdpe winding pipe with a certain force. Pull the hand blocks on both sides at the same time, and then place them in the corresponding position with a sealing rubber ring.