| Rapid development as the country’s footsteps, pipeline engineering construction hasbecome an important part in national product life, and our country’s economy developmentand the improvement in people’s lives are closely related. In recent years, due to the gradualimplementation of the national energy strategy especially clean energy strategy, the most ofcities across the country have been laid or start laying gas pipeline network.The main materials are steel gas pipeline network and PE pipe. In the pipelineconstruction process, purging, pressure test and temporary plugging is essential for theconstruction process and construction management requirements.This topic is committed to the development of the project for the construction phase (canalso be used to run the pipeline network has been put under special circumstances rescue,repair or normal maintenance) temporary closure of specialized equipment. The temporaryclosure device combining functions in the practical application of the project site, usingdescriptive and experimental research method to study the way the Combination.Through the analysis of various forms of plugging, plugging materials andcorresponding calculation, determine the air to make the seal tube sealing device. Use of toolsand is commonly used in engineering construction materials, developed the plugging devicewith simple structure form, and in the engineering the field trial, improvements andapplications. The sealing device is characterized by: simple, strong practicability, convenientinstallation and is suitable for large-scale popularization and application.This device is suitable for gas network, at the same time can also be applied to the restof the room temperature (high temperature and high pressure) professional network (watersupply, drainage, trachea, pipelines and other network) at room temperature. |