Online real-time detection method for gas-transmission-pipe water dew points
A real-time detection and gas pipeline technology, applied in the direction of material water content, etc., can solve the problems of long time consumption, insufficient real-time performance, and large personnel load, so as to reduce personnel load, improve timeliness and accuracy, and ensure safe operation. Effect
Inactive Publication Date: 2019-05-28
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the past, the water dew point detection of pipeline natural gas was generally carried out offline detection in the laboratory after sampling gas from the pipeline. For the sampling operation of high-pressure pipeline, the requirements for personnel are high, and the operation risk is 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
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.
[0026] Such as figure 1 As shown, what is described in the embodiment of the present invention is a method for online real-time detection of water dew point in a gas pipeline, the method comprising:
[0027] Step 1. Adjust all valves on the online real-time detection device for water dew point of the gas pipeline to the closed state;
[0028] Step 2, start the water dew point analyzer 10 and set its detection parameters;
[0029] Step 3, setting the outlet pressure value of the regulating valve 11;
[0030] Step 4, adjust the first cut-off valve 2 and the fourth cut-off valve 14 to fully open state, and then slowly open the second cut-off valve 4;
[0031] Step 5, open the first flow control valve 8 and adjust the second flow control valve 12, so that the gas flow rate flowing through the water dew point analyzer 10 is with...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an online real-time detection method for gas-transmission-pipe water dew points. The method includes the steps that 1, all valves on a gas-transmission-pipe-water-dew-point online real-time detection device are adjusted to be in a closed state; 2, a water-dew-point analysis meter is started, and the detecting parameters of the water-dew-point analysis meter are set; 3, an outlet pressure value of the adjusting valve is set; 4, the first stop valve and the fourth stop valve are adjusted to be in a full open state, and then the second stop valve is slowly opened; 5, the first flow control valve is opened, and the second flow control valve is adjusted, and the flow of gas flowing through the water-dew-point analysis meter is located in a requirement range of the water-dew-point analysis meter; 6, gas is detected by the water-dew-point analysis meter, and a detection result is transmitted to a control system. The online real-time detection method for the gas-transmission-pipe water dew points has the advantages that an automatic online detection function of gas-transmission-pipe-water-dew-point gas components is achieved; the detection timeliness and accuracy ofthe pipe water dew points are improved, the running safety of a pipe and equipment is guaranteed, and staff loads are reduced.
Description
technical field [0001] The invention relates to the technical field of natural gas detection, in particular to an online real-time detection method 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 detection of pipeline natural gas was generally carried out offline detection in the laboratory after sampling gas from the pipeline. For the sampling operation of high-pressure pipeline, the requirements for personnel are high, and the operation risk is inevitable, and this method has a large personnel load. , complex proc...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/66
Inventor 聂中文于永志王永吉
Owner BC P INC CHINA NAT PETROLEUM CORP