Combustion gas pipes house lead-in connecting equipment

Abstract

The fuel gas pipeline buyer junction device, including a fixed tube card, its structural features lies in it also to include three-way pipe body A and three-way pipe body B. Three-way pipe body A and the three-way pipe body B side port endophragm edge has to outside inclines horn the bevel, horn in the bevel inserts has the seal packing collar. The fixed tube embraces front end the cylinder shape tube card the endophragm edge has to outside inclines horn the bevel, in the bevel inserts has the seal packing collar, the cylinder shape tube card endophragm screw joint which the three-way pipe body A on port and the fixed tube embraces, and sets through a set on the three-way pipe body A locking nut locks, its side port and on three-way pipe body B port outer wall screw joint. And sets through a set on the three-way pipe body B locking nut locks, locks the nut internal installation to have the strut circle. This invention operation quick, the leak-proof quality is good, but effectively avoids the coal gas pipeline attachment divulging, guarantees the coal gas pipeline the installation work the quality.

Description

(1) Technical field [0001] The invention relates to a pipeline connection device, in particular to a gas pipeline household connection device. (2) Background technology [0002] Coal gas is a kind of clean energy, and it is easy to use. Pipeline gas has been widely used in the vast cities and towns of our country as raw materials for civil and industrial use. The safety performance is improved, and the installation is also much more convenient. But there are still different defects locally, especially at the connection between the garden pipe and the entrance pipe, sometimes the large-diameter cast iron pipe is cut off, and the small pipe fittings are connected by the outer thread of the steel short pipe (see schematic diagram). When this method is used in the processing of short steel pipes, the following problems exist in the threaded fasteners at both ends: 1. The galvanized anti-corrosion layer is damaged; 2. The pipe wall is thinned with a thickness of about 3 mm; 4. ...

AI Technical Summary

Problems solved by technology

However, there are still different defects in some parts, especially at the connection between the courtyard pipe and the entrance pipe, sometimes the large-diameter cast iron pipe is cut off, and the small pipe fittings are connected by the outer thread of the steel short pipe (see schematic diagram)

When this method is used to process short steel pipes, there are the following problems at the threaded fasteners at both ends: 1. The galvanized anti-corrosion layer is damaged; 2. The pipe wall is about 3 mm thick; 4. The connection of the pipe fittings here is uneven, without effective anti-corrosion treatment, and it is very easy to be corroded and rusted after being buried; so that once the pipe is subjected to external force, it is easy to break at the threaded buckle

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