Short pipe lining replacement repair pipeline inspection and repair

Replacement and repair of short pipe liningFeatures:

(1) Dot shaped CIPP repair uses polyester resin, epoxy resin, or vinyl resin. Cobalt containing compounds or organic peroxides can be used as catalysts to accelerate the curing of the resin and undergo polymerization reactions to form polymer compounds. This material is a single liquid grouting material, with simple construction and convenient equipment cleaning.
(2) The resin has good miscibility with water, and the slurry self disperses and emulsifies upon contact with water, immediately undergoing polymerization reaction. The induction time can be adjusted by the ratio.
(3) This material has strong adaptability to water quality, and its properties are generally unaffected by acidity, alkalinity, and rainwater.

Replacement and repair of short pipe liningProcess flow:
(1) Soak the felt cylinder in a suitable resin.
(2) Wrap the felt tube around the airbag and guide it to the repair site under television guidance.
(3) Inflate the airbag to press the felt cylinder "patch" onto the pipeline, maintaining pressure until the resin solidifies.
(4) The airbag is compressed and pulled out of the pipeline.
(5) Afterwards, conduct television inspection and construction quality testing.
(6) The drainage pipeline is located in the hidden layer of flowing sand or soft soil. Due to the formation of gaps at the interface, the flowing sand and soft soil around the pipeline infiltrate into the drainage pipeline through the gaps, causing soil loss around the pipeline, instability of the soil subgrade, pipeline subsidence, and road subsidence. Therefore, when repairing the dot shaped CIPP, it is necessary to clean the damaged tube and confirm that the TV is clean.

Scope of application: This type of repair technology can be applied to the renewal of old pipelines made of ceramics, unreinforced concrete, asbestos cement, plastic or cast iron pipes, with a diameter range of 75-2000mm.Using domestic product box culvert dredging robots, the construction process is safer, with lower impact on the surrounding environment, and has significant economic, environmental, and social benefits.