1. Steel sleeve steel direct buried steam insulation pipe is fixed and drained
The unique internal fixing structure is used to maintain the relative fixation between the inner and outer steel pipes by the three-layer steel flange and the two-layer asbestos flange. The high-temperature insulation material effectively prevents the heat bridge from being generated, and the construction does not need to add the reinforced concrete structure. The relative fixing of the inner and outer steel flanges can withstand sufficient axial thrust according to the design requirements, which can fully guarantee the safe operation of the entire pipeline.
2, steel sleeve steel direct buried steam insulation pipe compensator
When the bellows compensator is used, it is recommended to form a direct buried type with the pipeline. To prevent corrosion of the bellows compensator caused by heat dissipation and water penetration, it should be made into a heat-insulating and waterproof sealing structure. In order to maintain the rationality of the internal fixed thrust and the stability of the compensator during pipeline operation, it is recommended that the compensator be symmetrically arranged at both ends of the inner fixed, and a guide bracket is added at each end of the compensator to ensure that the compensator only bears the axial direction. Thrust to extend the life of the compensator.
3, steel sleeve steel direct buried steam insulation pipe drainage system
The hydrophobic system is placed in the hydrophobic port of the compensator or installed as close as possible to the internal fixed position. If the hydrophobic system is installed on the pipe, the water collecting tank should be installed on the pipe first, then taken out by the metal hose, and returned to the hydrophobic operation well. Two branch tubes are listed, one for starting hydrophobicity and one for regular hydrophobicity. Regular hydrophobicity is controlled by a thermodynamic steam trap and then introduced into a drainage well or a well. It is recommended that the operating well be separated from the drainage well for easy operation and avoiding hazards.
4, the valve
Valves for steam pipes are recommended to be installed in valve wells for ease of operation and maintenance. At the same time, when installing the valve, the pipe at both ends of the valve should be sealed with a corrugated cap to prevent the water in the well from entering the inside of the insulation layer.
5, steel sleeve steel direct buried steam insulation pipe elbow
The steel casing is externally protected and the inside is insulated. According to the compensation amount of the elbow in the pipeline design, the diameter of the outer sheath tube is increased accordingly to ensure sufficient thickness of the elbow after the expansion deformation. Insulation materials should also be changed accordingly, using high-rebound soft insulation materials. The thermal insulation elbow is also made into a thermal insulation prefabricated part in the prefabrication plant.
6, steel sleeve steel direct buried steam insulation pipe tee, reducer
The three-way and reducer are generally used in the branch of the steam pipe trunk to provide users with the necessary means of heat source. In the processing of the above nodes, our products have unique technical processing experience and can provide users with the best advice. Under normal circumstances, fixed points are set at the three-way or four-way to ensure the stability of the pipeline. In addition, natural compensation is provided on the branch line to reduce the thrust tee to the main line and the reducer can be insulated on site. It can be made into prefabricated parts. According to the displacement given by the design, the T-shaped steel jacket can be appropriately enlarged to increase the insulation thickness of the branch pipe.
