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What role does the thermal insulation waterproof end seal play in the pipeline construction?

发布时间:2018-12-10 11:14 Publisher: Hebei Xinfang Strategy Pipeline Release time: 2018-12-10 11:14

What is the role of thermal insulation and waterproof end seals in pipeline construction? Let's find out!

The heat insulation and waterproof end seal uses a common internal fixing structure. The three-layer steel flange and the two-layer asbestos flange are used to maintain the relative fixation between the front and back steel pipes. The high-temperature partition material is useful to avoid cold bridges, and no reinforced concrete structure is required for construction.

The relative fixing of the front and back steel flanges can accept a sufficient axial thrust according to the planning requirements, which can fully ensure the safe operation of the entire pipeline. The water-repellent system is installed at the water-repellent port of the compensator. The water-repellent system may be installed as close to the fixed bracket as possible. If the water-repellent system is installed on the pipeline, a water collection tank should be installed on the pipeline and then led out with a metal hose.

Waterproof and waterproof end seal

Two branch tubes are listed in the back to the hydrophobic operation well, one is to start the hydrophobic, and the other is the regular hydrophobic. Recurrent drains are controlled with thermodynamic traps. Then introduce drainage wells or manholes. It is advisable to separate the operation well from the drainage to facilitate operation and avoid the risk of outbreaks.

Steel casing is used for external protection and internal insulation treatment. According to the compensation amount of the elbow during the design of the pipeline, the thermal insulation waterproof end seal should increase the diameter of the outer protective sleeve accordingly to ensure that after the expansion and deformation, the elbow part still has a satisfactory insulation thickness. Insulation materials should also be changed accordingly, and high-resilient soft insulation materials should be selected. Thermal insulation and waterproof end seals are also made into thermal insulation prefabricated parts in the prefabrication plant.

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