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Real-time analysis method for hydrogen sulfide in gas pipeline

A real-time analysis and gas pipeline technology, applied in the field of pipeline systems, can solve the problems of large personnel load, long time consumption, and low accuracy of gas pipeline components, and achieve the effect of improving accuracy and reducing personnel load.

Inactive Publication Date: 2019-06-18
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method cannot automatically analyze the components on-line, and there are problems such as large personnel load, complicated process, long time consumption, and insufficient real-time performance, which ultimately leads to low accuracy of gas pipeline components

Method used

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  • Real-time analysis method for hydrogen sulfide in gas pipeline
  • Real-time analysis method for hydrogen sulfide in gas pipeline

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Embodiment Construction

[0031] The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

[0032] Such as figure 1 As shown, a real-time analysis method for hydrogen sulfide in a gas pipeline according to an embodiment of the present invention includes:

[0033] Step 1, start H 2 S Analyzer 22.

[0034] Step 2, close all valves of the hydrogen sulfide real-time analysis device in the gas pipeline.

[0035] Step 3, set H 2 The analysis parameters of S analyzer 22 include temperature, analysis duration and analysis time interval.

[0036] Step 4, setting the pressure values ​​of the second pressure reducing valve 26 on the span gas pipeline and the third pressure reducing valve 31 on the zero gas pipeline.

[0037] Further, through the third pressure gauge 27 and the fourth pressure gauge 28 at both ends of the second pressure reducing valve 26, the pressure values ​​before and after the pressure reduction of the...

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Abstract

The invention discloses a real-time analysis method for hydrogen sulfide in a gas pipeline. The method comprises steps that an H2S analyzer starts; all valves are closed; parameters for starting the H2S analyzer are set; a pressure value of a valve on a span gas pipeline is set; the valve is opened, zero gas is injected, and zero calibration of the H2S analyzer is performed; the valve is opened, range gas is injected, and range calibration of the H2S analyzer is performed; pressure values of the valve and a regulator on a sampling probe are set; a manual valve on a sample gas pipeline is opened; a pneumatic valve on the sample gas pipeline is opened, and the sample gas is injected; the sample gas is analyzed by the H2S analyzer, the analysis result is outputted and uploaded to a station control system, and the pneumatic valve is closed; all the valves and the H2S analyzer are closed after all analyses are completed. The method is advantaged in that the method can realize automatic online analysis of H2S gas components of a gas pipeline, improve accuracy and timeliness of H2S content detection of the gas pipeline, make online analysis of the gas components of the gas pipeline more practical and reduce personnel load.

Description

technical field [0001] The invention relates to the technical field of pipeline systems, in particular to a real-time analysis method for hydrogen sulfide in gas pipelines. Background technique [0002] During the operation of the pipeline, due to the custody transfer with the third party, the requirements for the components are relatively high, and the components need to be sampled and analyzed. Traditional pipelines need to take samples from the pipeline, analyze them offline after sampling, and then manually enter the analyzed component information into the system to achieve this. This method cannot automatically analyze the components online, and there are problems such as large personnel load, complicated process, long time consumption, and insufficient real-time performance, which ultimately leads to low accuracy of gas pipeline components. Contents of the invention [0003] In order to solve the above problems, the object of the present invention is to provide a re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 聂中文黄晶王永吉于永志
Owner BC P INC CHINA NAT PETROLEUM CORP
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