Flat steel bifurcated pipe and manufacturing method thereof

Abstract

The invention relates to a flat steel bifurcated pipe and a manufacturing method thereof. The flat steel bifurcated pipe comprises a main pipe, a left branch cone and a right branch cone, wherein one end of the left branch cone is communicated with one end of the main pipe; one end of the right branch cone is communicated with one end of the main pipe; one side of the left branch cone leans against and is welded with one side of the right branch cone; another end of the left branch cone and another end of the right branch cone are respectively communicated with a left branch pipe and a right branch pipe; bottoms of the main pipe, the left branch cone, the right branch cone, the left branch pipe and the right branch pipe are located at the same one altitude. The flat steel bifurcated pipe has the advantages that the shape of the flat steel bifurcated pipe is different from the principle of the same one altitude of axial lines of various pipe joints of the other steel bifurcated pipes and ensures the same one altitude on the bottom of the various pipe joints; the same one altitude on the bottom of the pipe has independent goodness; water can flow freely to be discharged when high-pressure pipes are maintained without pumping the water by a water pump or arranging holes on the steel bifurcated pipe and connecting with a special drainage system; the drainage time is shortened greatly, and the effective work time for maintenance is prolonged; the flat steel bifurcated pipe has the advantages of regular shape, no deformity portions, reasonable force and no stress concentration phenomenon.

Description

technical field [0001] The invention relates to a steel branch pipe and a manufacturing method thereof, in particular to a flat-bottomed steel branch pipe and a manufacturing method thereof. Background technique [0002] At present, a large number of world-class large-scale power stations are being built or under planning in the southwest of my country. The HD value of the product of the design head of the hydropower station and the pipe diameter of the diversion pipe is getting larger and larger, and the engineering geological conditions are becoming more and more complicated. The level of science and technology and technology put forward new requirements. The steel branch pipe is one of the important components of the pumped storage power station and the conventional diversion-type power station, and its safety is very important. Steel bifurcation pipes have been widely used in power stations that have been built and are under construction. Commonly used bifurcation pipe ...

AI Technical Summary

Problems solved by technology

However, in the process of operation, all the above types of steel branch pipes cannot consider the self-flowing drainage requirements of the penstock of the hydropower station during the inspection and maintenance process. If inspection and maintenance are required, water pumps can only be used to pump water or holes are left in the shell of the branch pipe to connect to the drainpipe. for drainage, etc.

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