Gas transmitting pipeline and gas quality analysis integrated detecting method
A technology for gas pipelines and detection methods, applied in the pipeline system, gas/liquid distribution and storage, mechanical equipment, etc., can solve the problems of low accuracy, heavy personnel load, and complicated process of gas pipeline trade transfer, and achieve Improve comprehensive monitoring capabilities, reduce workload, and ensure smooth progress
Inactive Publication Date: 2019-07-12
BC P INC CHINA NAT PETROLEUM CORP +2
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Problems solved by technology
In the past, the analysis of pipeline natural gas was performed offline in the laboratory after sampling gas from the pipeline. For the sampling operation of high-pressure pipelines, the requirements for personnel are high, and operational risks are inevitable. Problems such as complexity, long time-consuming, and insufficient real-time performance ultimately lead to low accuracy of custody transfer of gas pipelines
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[0024] The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.
[0025] Such as figure 1 As shown, what is described in the embodiment of the present invention is an integrated detection method for gas pipeline gas analysis, which includes:
[0026] Step 1. Adjust all valves in the detection device to a closed state;
[0027] Step 2, start the hydrocarbon dew point analyzer 6, the water dew point analyzer 7, the hydrogen sulfide analyzer 8 and the component analyzer 9, and set the output type of each equipment detection result;
[0028] Step 3. Open the corresponding valve in the detection device to fill the pipeline of the detection device with gas;
[0029] Step 4, start the flow regulating device 4 so that the gas flow is within the required range of the hydrocarbon dew point analyzer 6, the water dew point analyzer 7, the hydrogen sulfide analyzer 8 and the component analyzer 9;
[0...
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The invention discloses a gas transmitting pipeline and gas quality analysis integrated detecting method. The method comprises the following steps of adjusting all valves in a detecting device to a closed state; starting a hydrocarbon dew point analyzer, a water dew point analyzer, a hydrogen sulfide analyzer and a component analyzer, and detecting the result output type; filling the detecting device pipeline with gas; starting a flow regulating device to enable the gas flow to be within the required range of the hydrocarbon dew point analyzer, the water dew point analyzer, the hydrogen sulfide analyzer and the component analyzer; and after the gas flow is stable, detecting the gas flow by each analyzer, and uploading the final detecting result to a controlling system. The method has the beneficial effects that the online real-time detecting function of the hydrocarbon dew point, the water dew point, the hydrogen sulfide and the component of the gas pipeline can be realized, the comprehensive monitoring capability of the gas quality in the gas pipeline is improved, and the monitoring is timely and precise, so that the operation safety of the pipeline and equipment is ensured, the smooth proceeding of the trade handover is ensured, and the working load of operators is largely reduced.
Description
technical field [0001] The invention relates to the technical field of natural gas detection, in particular to an integrated detection method for gas pipeline gas analysis integration. Background technique [0002] First of all, during the long-distance natural gas pipeline transportation, changes in temperature and pressure will lead to changes in the dew point of natural gas hydrocarbons and water dew points. When the critical point is exceeded, liquid hydrocarbons and water will be precipitated, causing corrosion damage to equipment such as pipelines and compressors. ;Secondly, when the hydrogen sulfide content in natural gas exceeds the standard, it will also cause corrosion of metal equipment and materials such as pipelines; Finally, natural gas transportation involves custody transfer, and the transfer volume is greatly affected by components, so real-time monitoring of components is also required. detection. Therefore, the analysis of hydrocarbon dew point, water dew...
Claims
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Login to View More IPC IPC(8): F17D5/00F17D5/02F17D3/10
CPCF17D3/10F17D5/00F17D5/02
Inventor聂中文于永志单超冯骋黄晶
OwnerBC P INC CHINA NAT PETROLEUM CORP