Hydrogen damage detection on-line sampling device for hydrogen-doped natural gas pipeline

Abstract

The utility model discloses hydrogen damage detection on -line sampling device of natural gas hydrogen pipeline, including setting in the pry dress, two parallelly arranged sampling pipe, one end of two sampling pipes all stretches out from pry dress, and is connected with the natural gas pipeline to be tested, and the other end all is connected with the manifold, and the position of natural gas pipeline between two sampling pipes is equipped with main cut -off valve, and two sampling pipes from one end with natural gas pipeline to the other end connected with manifold all include sampling pipe cut -off valve, nitrogen replacement mouth, vent pipe connecting mouth, 8 blind plate cut -off mouth in proper order, and same number's multiple sampling section, and the pipeline material and pipe diameter of every sampling section are all completely same with natural gas pipeline, and all are equipped with the same welding seam with the welding process and anticorrosion process of natural gas pipeline, and the length of two sampling sections of two sampling pipes distance manifold same distance is same. The utility model can be under the condition of not stopping gas, and the hydrogen damage condition of hydrogen mixing natural gas pipeline in service is accurately evaluated.

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