UV curing repair of the entire pipeline

UV curing repair technology for pipelines is an efficient, environmentally friendly, and economical method of pipeline maintenance, providing a convenient and safe solution for eliminating damaged structures inside pipelines. The UV curing repair technology for pipelines is widely used worldwide, especially in the energy, water treatment, aviation, transportation, and marine industries.

UV curing repair of pipelines is a new type of non excavation FRP repair technology that uses ultraviolet light irradiation to cure the resin material inside the pipeline, thereby achieving effective repair of pipeline damage and aging. This technology has been rapidly developed and applied due to its fast repair speed, high repair quality, high stability and reliability, and short pipeline blockage time.

The overall UV curing repair of the pipeline extends its service life. The in-situ repair technology of UV curing pipeline adopts the pulling method to pull the rolled glass fiber hose into the old pipeline to be repaired. Through UV curing equipment, the repair is carried out, eliminating the need for scaffolding, flipping, water use and other links, achieving advantages such as environmental protection, cost saving, and non excavation repair. Adopting this pipeline repair process can further extend the service life of the pipeline.

Due to rainfall and street washing, tree branches, irregular stones, etc. may be washed into the sewer, but these things will not easily flow with the flowing water and will remain inside the pipeline for a long time, which can easily lead to pipeline damage, blockage, and other situations. However, due to the narrow sewer system, manual access to these obstacles is not possible, and in this case, pipeline repair robots are needed to solve the problem.

The CIPP non excavation repair method using ultraviolet light curing can repair hoses up to a length of 500M in one go, even if there are changes in the size of a section of the pipeline or if the pipeline has a curvature of less than 30 °, it can be repaired without wrinkles. Flexible hoses are suitable for various types of pipelines, including circular, elliptical, egg shaped, square, and other special shapes. The range of inner lining repair is from DN150 to DN1600, and the inner lining wall thickness ranges from 3mm to 14mm. With flexible, diverse, fast, and highly innovative capabilities, as well as short response times and effective problem-solving methods, the UV curing CIPP inner lining repair process and device save a lot of resources in the planning and construction stages of urban pipe network repair.

UV-CIPP technology is a type of in-situ curing method for non excavation repair. The industry standard "Technical Regulations for Non excavation Repair and Renewal Engineering of Urban Drainage Pipelines" (CJJ/T210-2014) issued by the Ministry of Housing and Urban Rural Development defines in-situ curing as a repair method that uses flipping or pulling to place an impregnated resin liner into the original pipeline, and after curing, forms the inner lining of the pipeline.

UV light curing technology is an in-situ curing method in which glass fibers are woven into flexible tubes and impregnated with resin, and then pulled into the original pipeline for inflation and expansion, tightly adhering to the original pipeline. Under the action of ultraviolet light, the resin is cured to form an inner lining tube with a certain strength. This construction method adopts a UV resin system, and the hose material is glass fiber. The cured inner lining layer has high strength, corrosion resistance, and improves water flow conditions. No excavation is required, and the entire drainage pipeline can be repaired using inspection wells, which can repair structural defects such as rupture, misalignment, disconnection, tree root invasion, and leakage in the drainage pipeline.