Gas pipeline water dew point online real-time detecting device

Abstract

The invention discloses a gas pipeline water dew point online real-time detecting device. The device comprises a water dew point analyzer, a filter, a first stop valve and a pressure regulating valveand is characterized in that the gas inlet end of the water dew point analyzer is connected with the upper end of a sampling probe through a stainless steel pipe, and the gas outlet end of the water dew point analyzer is connected with the gas inlet end of a second flow control valve through a stainless steel pipe; the filter is arranged on the stainless steel pipe between the sampling probe and the water dew point analyzer, and the bottom end of the filter is connected with a first flow control valve through a stainless steel pipe; the first stop valve is arranged on the stainless steel pipebetween the sampling probe and the filter; the pressure regulating valve is arranged on the stainless steel pipe between the water dew point analyzer and the second flow control valve. The gas pipeline water dew point online real-time detecting device has the advantages that automatic online detection of gas pipeline water dew point gas components is achieved; the timeliness and accuracy of pipeline water dew point detection are increased, pipeline and equipment operation safety is guaranteed, and staff workload is relieved.

Description

technical field [0001] The invention relates to the technical field of natural gas detection, in particular to an online real-time detection device for water dew point of a gas transmission pipeline. Background technique [0002] In the process of long-distance natural gas pipeline transportation, changes in temperature and pressure will lead to changes in the dew point of natural gas water. When the critical point is exceeded, liquid water will be precipitated, causing corrosion damage to equipment such as pipelines and compressors. Therefore, real-time monitoring of natural gas water dew point is particularly important. In the past, the water dew point monitoring of pipeline natural gas was generally carried out off-line after the gas was sampled from the pipeline, and the laboratory in the station carried out offline detection. For the sampling operation of high-pressure pipelines, the requirements for personnel are high, and operational risks are inevitable, and this met...

AI Technical Summary

Problems solved by technology

In the past, the water dew point monitoring of pipeline natural gas was generally carried out off-line after the gas was sampled from the pipeline, and the laboratory in the station carried out offline detection. For the sampling operation of high-pressure pipelines, the requirements for personnel are high, and operational risks are inevitable, and this method has a large personnel load. , complex process, long time-consuming, and insufficient real-time performance, etc., which ultimately lead to low accuracy of custody transfer of gas pipelines

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