초록 ▼

A method for renovation of pipelines, comprising introduction of lining layers into the existing pipeline, the lining layers corresponding in length to the length of the pipeline to be renovated. The lining layers consist of fusible polymers and are presurized and fused together by the introduction

A method for renovation of pipelines, comprising introduction of lining layers into the existing pipeline, the lining layers corresponding in length to the length of the pipeline to be renovated. The lining layers consist of fusible polymers and are presurized and fused together by the introduction of a heat source into the inside of the innermost lining layer.

대표청구항 ▼

[ What is claimed is:] [1.]1. Method for renovation of a length of a pipeline comprising introduction of a lining pipe into an existing pipeline, said lining pipe having a length corresponding to a length to be renovated and consisting of fusible polymer lining layers in a folded condition, and unfo

[ What is claimed is:] [1.]1. Method for renovation of a length of a pipeline comprising introduction of a lining pipe into an existing pipeline, said lining pipe having a length corresponding to a length to be renovated and consisting of fusible polymer lining layers in a folded condition, and unfolding of the lining pipe in order to line the existing pipeline, comprising the steps of building up said lining pipe by successively introducing said lining layers (1,4,5,6,7,8,9) in the existing pipeline to be lined, successively pressuring said lining layers and fusing them together by exposing said lining layers (1, 4-9) to fusion heat from an infrared heat source (3), wherein said lining layers are alternately opaque and translucent to infrared heating energy from said infrared heat source (3), and wherein said infrared heat source (3) is carried along an inside surface of an innermost layer of said lining pipe built up so far.