The working steel pipe of the steel sleeve steel steam direct buried insulation pipe generally adopts No. 20 seamless steel pipe, and the working steel pipe is a pipeline for medium transportation in the process of use, which needs to withstand a certain temperature and working pressure, so there can be no sloppiness when choosing the working steel pipe, if there is a leakage, it will bring a great threat to the safety of life and property.
The steel sleeve steel steam direct buried insulation pipe should be designed and installed according to the drawings when laying, wherein the fixed bracket and the tide drain pipe are an indispensable part, the fixed bracket is divided into the internal fixing bracket and the internal and external fixed bracket, the internal fixed bracket is fixed between the working steel pipe and the outer protection steel pipe through the special structure inside the fixed support, so that the steel sleeve steel steam direct buried insulation pipe can be fixed with the outer steel pipe without using cement concrete piers, which saves the construction cost and reduces the difficulty of laying.
In the process of production, the steel pipe is not allowed to have welds, which is also considered for the sake of not having any problems in the operation of the steam pipe network.
When the steel jacket steel steam direct buried insulation pipe is installed and laid on the construction site, the welding of the working steel pipe also needs to be welded by a professional welding master, usually with argon arc welding as the bottom, carbon dioxide protection welding for filling and covering, after the welding is completed, it must go through a comprehensive X-ray flaw detection and water pressure test, the weld of the steel jacket steel steam direct buried insulation pipe can not appear pores, slag inclusions, undercuts and other defects, and the problem should be repaired in time until it fully meets the standard.
In the process of laying the steel jacket steel steam direct buried insulation pipe, if the rainy season is encountered, the water ingress in the pipeline is inevitable, and after the installation of the pipeline, the heat of the steam itself will evaporate the water in the insulation layer and discharge it through the tide exhaust pipe.
At the same time, the tide drain pipe also has the function of alarm, if the steam pipeline runs ** leakage, the steam will be discharged in the tide drain pipe, at this time, as long as you observe which tide drain pipe is running out of steam, you can determine which section of the steel sleeve steel steam directly buried insulation pipe leaks according to the position of the tide drain pipe.