A natural gas pipeline and pipeline connector

Abstract

The invention belongs to the technical field of pipeline equipment, and in particular relates to a natural gas pipeline and a pipeline connector. The ends of the natural gas pipeline are butted through the pipeline connector, and a locking mechanism and a sealing mechanism are provided on the end of the natural gas pipeline and the pipeline connector; the pipeline connection The fitting includes a mounting ring with the same inner diameter and outer diameter as the natural gas pipeline; the locking mechanism includes a first mounting seat, a second mounting seat, a locking plate, a first rubber strip, a mounting plate, a first spring and a second rubber strip; The sealing mechanism includes a first sealing ring, a second sealing ring, a sealing oil groove, a first accommodating groove, a second accommodating groove, a second spring, an oil storage tank, an oil passage, a valve and an oil inlet. The invention connects and fixes two natural gas pipelines through the pipeline connecting piece, so even in a very low ambient temperature, the locking effect of the pipeline connecting piece on the natural gas pipeline can be ensured, and the occurrence of natural gas leakage can be avoided.

Description

technical field [0001] The invention belongs to the technical field of pipeline equipment, and in particular relates to a natural gas pipeline and a pipeline connector. Background technique [0002] Natural gas pipeline refers to the pipeline that transports natural gas from the mining area to the urban gas distribution center or industrial enterprise users, also known as the gas transmission pipeline. Gas pipelines are made of steel and are usually assembled from individual pipes connected one by one. In the existing natural gas pipelines, flanges are fixedly installed at both ends of each pipeline, and the flanges of the two pipelines are fastened together by bolts during installation to realize the connection and sealing between the two pipelines. In the actual use process, the existing natural gas pipelines have the following problems: (1) Since the bolts used to fasten the pipeline are made of metal materials, they have the characteristics of thermal expansion and cont...

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Problems solved by technology

[0004] The invention provides a natural gas pipeline and a pipeline connector, aiming to solve the following problems existing in the current natural gas pipeline during use: (1) Since the bolts used to fasten the pipeline are made of metal materials, there is thermal expansion and contraction Due to its characteristics, the volume shrinkage will occur in the environment with low temperature, which will lead to the deterioration of the fastening effect between the two pipes, and the gaps will easily appear at the joints of the pipes, resulting in natural gas leakage; (2) due to the steel pipe itself There is a characteristic of thermal expansion and contraction, and axial contraction will occur in an environment with low temperature, which will also cause gaps at the joints of pipelines, resulting in natural gas leakage

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