FIELD: construction.
SUBSTANCE: method includes cleaning of a pipeline from deposits, tamping of pipeline annular space, application of a coating onto the inner surface of the pipeline. Initially an interrupting coating layer is applied in the form of half-rounds on the inner surface of the pipeline, afterwards the coating is hardened. Then the coating is applied onto the entire length of the pipeline. The method is realised with a device made of chambers connected with pipeline ends. In each chamber there is a sleeve, the front end of which is bent and forms a tight cavity communicated with the system of fluid agent supply, and the second end of the sleeve is connected with a traction device. The device is equipped with a system of mixture supply to coat the inner surface of the pipeline communicated with the pipeline cavity and arranged in front of the inverted end of the sleeve. One of the sleeves is made with identical diameter along the entire length. The second sleeve is made with the diameter equal to the inner diameter of the pipeline, along the entire length of the sleeve there are slots in the form of half-rounds.
EFFECT: application of a coating with thickness from 5 to 500 mm during recovery of a pipeline with diameter of 100-5000 mm in two stages, increased strength of the coating.
4 cl, 5 dwg
