CN210014212U - Gas pipeline gas quality analysis integration detection device - Google Patents
Gas pipeline gas quality analysis integration detection device Download PDFInfo
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- CN210014212U CN210014212U CN201920550965.6U CN201920550965U CN210014212U CN 210014212 U CN210014212 U CN 210014212U CN 201920550965 U CN201920550965 U CN 201920550965U CN 210014212 U CN210014212 U CN 210014212U
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Abstract
The utility model discloses a gas transmission pipeline gas matter analysis integration detection device that integrates, the device includes: the gas outlet end of the sampling probe is divided into four branches and is respectively connected with the hydrocarbon dew point analyzer, the water dew point analyzer, the hydrogen sulfide analyzer and the component analyzer through stainless steel pipes; a control system electrically connected to the hydrocarbon dew point analyzer, the water dew point analyzer, the hydrogen sulfide analyzer, and the composition analyzer, respectively. The utility model has the advantages that: the on-line real-time detection function of hydrocarbon dew points, water dew points, hydrogen sulfide and components of the gas transmission pipeline can be realized, the comprehensive monitoring capability of the gas quality of natural gas in the gas transmission pipeline is improved, the on-line real-time detection function is timely and accurate, the operation safety of pipelines and equipment is ensured, the smooth operation of trade handover is ensured, and the workload of operators is greatly reduced.
Description
Technical Field
The utility model relates to a natural gas detects technical field, particularly, relates to a gas transmission pipeline gas matter analysis integration detection device.
Background
Firstly, in the process of transporting natural gas long-distance pipelines, the change of temperature and pressure can cause the change of natural gas hydrocarbon dew point and water dew point, when the natural gas hydrocarbon dew point and the water dew point exceed critical points, liquid hydrocarbon and water can be separated out, and the corrosion damage of the pipelines, compressors and other equipment is caused; secondly, when the content of hydrogen sulfide in the natural gas exceeds the standard, the corrosion of metal equipment and materials such as pipelines and the like can be caused; finally, natural gas delivery involves trade transfers, the amount of which is greatly affected by the composition, and therefore real-time detection of the composition is also required. Analysis of the hydrocarbon dew point, water dew point, hydrogen sulfide and composition of natural gas is essential. In the past, the analysis of the natural gas in the pipeline is to perform off-line detection in a laboratory in a station after the gas is sampled from the pipeline, the requirement on people is high for the sampling operation of the high-pressure pipeline, the operation risk is inevitable, and the method has the problems of large personnel load, complex process, long time consumption, insufficient real-time performance and the like, so that the accuracy of gas pipeline trade handover is not high finally.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an object of the present invention is to provide an integrated gas analysis and integration detection device for a gas pipeline, which can detect the hydrocarbon dew point, water dew point, hydrogen sulfide and component information of the gas pipeline rapidly, automatically and accurately.
The utility model provides a gas transmission pipeline gas matter analysis integration detection device, the device includes:
the gas outlet end of the sampling probe is divided into four branches and is respectively connected with the hydrocarbon dew point analyzer, the water dew point analyzer, the hydrogen sulfide analyzer and the component analyzer through stainless steel pipes;
a control system electrically connected to the hydrocarbon dew point analyzer, the water dew point analyzer, the hydrogen sulfide analyzer, and the composition analyzer, respectively.
As a further improvement, the sampling probe is provided with a sample gas treatment device on the upstream main pipeline of four branches at the gas outlet end.
As a further improvement, the sampling probe give vent to anger the end with be equipped with the filter between the inlet end of sample gas processing apparatus, the filter is equipped with two ends of giving vent to anger, sample gas processing apparatus's inlet end with the first end of giving vent to anger of filter is through nonrust steel pipe connection.
As a further improvement of the utility model, the second of filter is given vent to anger the end and is passed through nonrust steel pipe with flow regulator's inlet end and be connected, flow regulator's the end of giving vent to anger is led to safe region by the pipeline.
As a further improvement, the utility model also comprises a stainless steel cabin, a filter, a flow regulating device, a sample gas processing device, a hydrocarbon dew point analyzer, a water dew point analyzer, a hydrogen sulfide analyzer and a component analyzer are all arranged in the stainless steel cabin.
As a further improvement, the utility model also comprises an explosion-proof junction box which is connected with the outside of the stainless steel cabin through a connecting piece, the hydrocarbon dew point analyzer the water dew point analyzer the hydrogen sulfide analyzer and the component analyzer are all passed through the explosion-proof junction box with the control system is electrically connected.
As a further improvement of the present invention, the component analyzer is provided in a redundant configuration.
As a further improvement, the component analyzer is a gas chromatograph analyzer.
As a further improvement, the stainless steel cabin is internally provided with a combustible gas detector, a hydrogen sulfide detector and a ventilation device.
As a further improvement of the utility model, the stainless steel tube between the air outlet end of the flow regulating device and the safe area is provided with electric tracing.
The utility model has the advantages that: the on-line real-time detection function of hydrocarbon dew points, water dew points, hydrogen sulfide and components of the gas transmission pipeline can be realized, the comprehensive monitoring capability of the gas quality of natural gas in the gas transmission pipeline is improved, the on-line real-time detection function is timely and accurate, the operation safety of pipelines and equipment is ensured, the smooth operation of trade handover is ensured, and the workload of operators is greatly reduced.
Drawings
Fig. 1 is a schematic structural view of an integrated gas analysis and integration detection device for a gas pipeline according to an embodiment of the present invention.
In the figure, the position of the upper end of the main shaft,
1. a sampling probe; 2. a stainless steel tube; 3. a filter; 4. a flow regulating device; 5. a sample gas treatment device; 6. a hydrocarbon dew point analyzer; 7. a water dew point analyzer; 8. a hydrogen sulfide analyzer; 9. a component analyzer; 10. a first cable; 11. a second cable; 12. a third cable; 13. a fourth cable; 14. an explosion-proof junction box; 15. a fifth cable; 16. a connecting member; 17. a stainless steel cabin; 18. and (5) controlling the system.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
As shown in FIG. 1, the embodiment of the utility model provides a gas transmission pipeline gas matter analysis integration detection device, the device includes:
the gas inlet end of the sampling probe 1 is inserted into the gas transmission pipeline, and the gas outlet end of the sampling probe 1 is divided into four branches which are respectively connected with the hydrocarbon dew point analyzer 6, the water dew point analyzer 7, the hydrogen sulfide analyzer 8 and the component analyzer 9 through the stainless steel pipe 2;
and a control system 18 which is electrically connected with the hydrocarbon dew point analyzer 6, the water dew point analyzer 7, the hydrogen sulfide analyzer 8 and the component analyzer 9 respectively. In this embodiment, the control system 18 is a PLC or DCS system.
Further, a sample gas processing device 5 is arranged on the upstream main pipeline of the four branches at the gas outlet end of the sampling probe 1.
Further, be equipped with filter 3 between the end of giving vent to anger of sampling probe 1 and the inlet end of sample gas processing apparatus 5, filter 3 is equipped with two ends of giving vent to anger, and the inlet end of sample gas processing apparatus 5 and the first end of giving vent to anger of filter 3 are connected through stainless steel pipe 2.
Further, the second end of giving vent to anger of filter 3 passes through stainless steel pipe 2 with the inlet end of flow control device 4 and is connected, and the end of giving vent to anger of flow control device 4 leads to safe region through stainless steel pipe 2.
Further, the device comprises a stainless steel cabin 17, and the filter 3, the flow regulating device 4, the sample gas processing device 5, the hydrocarbon dew point analyzer 6, the water dew point analyzer 7, the hydrogen sulfide analyzer 8 and the component analyzer 9 are all arranged inside the stainless steel cabin 17. In order to avoid the influence of the external environment on each detection instrument in the detection device, the filter 3, the flow rate adjusting device 4, the sample gas processing device 5, the hydrocarbon dew point analyzer 6, the water dew point analyzer 7, the hydrogen sulfide analyzer 8, and the component analyzer 9 are all placed inside the stainless steel cabin 17. The gas outlet end of the sample gas processing device 5 is respectively connected with a hydrocarbon dew point analyzer 6, a water dew point analyzer 7, a hydrogen sulfide analyzer 8 and a component analyzer 9 through a stainless steel pipe 2.
Further, the device comprises an explosion-proof junction box 14 which is connected with the outer side of a stainless steel cabin 17 through a connecting piece 16, and the hydrocarbon dew point analyzer 6, the water dew point analyzer 7, the hydrogen sulfide analyzer 8 and the component analyzer 9 are electrically connected with a control system 18 through the explosion-proof junction box 14. The explosion-proof junction box 14 ensures the safety of the detection result in the transmission process, and the detection process and the transmission of the detection result cannot be influenced by the change of the current. The hydrocarbon dew point analyzer 6 is electrically connected with the input end of an explosion-proof junction box 14 through a first cable 10, the water dew point analyzer 7 is electrically connected with the input end of the explosion-proof junction box 14 through a second cable 11, the hydrogen sulfide analyzer 8 is electrically connected with the input end of the explosion-proof junction box 14 through a third cable 12, the component analyzer 9 is electrically connected with the input end of the explosion-proof junction box 14 through a fourth cable 13, and the output end of the explosion-proof junction box 14 is electrically connected with a control system 18 through a fifth cable 15.
Further, the component analyzer 9 is provided redundantly.
Further, the composition analyzer 9 is a gas chromatograph analyzer.
Since the component information is an important parameter participating in the flow rate calculation, the present embodiment designs the component analyzers 9 as a redundant arrangement, so that even if one component analyzer 9 fails, the entire detection apparatus can normally detect the components of the detected gas. The component analyzer 9 in this embodiment is a gas chromatograph.
Further, a combustible gas detector, a hydrogen sulfide detector and a ventilation device are arranged inside the stainless steel cabin 17. Because the stainless steel cabin 17 is a closed space and the gas pipeline transports natural gas, a combustible gas detector, a hydrogen sulfide detector and a ventilation device are also required to be arranged inside the stainless steel cabin 17. Once gas leakage occurs inside the stainless steel cabin 17, the worker can start the ventilation device or take other corresponding measures according to the detection result of the detector.
Further, an electric tracing is arranged on the stainless steel pipe 2 between the air outlet end of the flow regulating device 4 and the safe area. In consideration of the quality of the outdoor environment, the electric tracing heat is arranged on the pipeline of the outdoor part, and the electric tracing heat needs to be started or closed according to the external temperature condition in the practical application process. And when the temperature is lower, the electric tracing is turned on to heat the gas transmission pipeline, and when the temperature is higher, the electric tracing is turned off.
To the problem that the gas quality of current natural gas line can't carry out gas detection in real time on line, this embodiment uses hydrocarbon dew point analysis appearance 6, water dew point analysis appearance 7, hydrogen sulfide analysis appearance 8 and component analysis appearance 9 to the gas transmission pipeline in to integrate into integration sled dress equipment, realize the online real-time detection of gas pipeline gas quality. The detection principle is as follows: in the whole pipeline of the detection device, firstly, the sampling probe 1 obtains representative sample gas from a gas transmission pipeline filled with high-pressure natural gas. The sample gas is pretreated by a sample gas treatment device in the pipeline of the detection device, the obtained sample gas meeting the conditions is injected into a detection analysis instrument for analysis, and then the analysis result is uploaded to the control system 18.
The specific detection method of the detection device in this embodiment is as follows: firstly, extracting a detection sample gas from a gas transmission pipeline through a sampling probe 1, and then conveying the detection sample gas into a filter 3 for filtering treatment; the flow regulating device 4 is started to regulate the flow of the sample gas, so that the flow of the sample gas meets the flow requirements of the hydrocarbon dew point analyzer 6, the water dew point analyzer 7, the hydrogen sulfide analyzer 8 and the component analyzer 9, redundant sample gas is conveyed to a safe region through the gas outlet end of the flow regulating device 4 to be discharged, the rest sample gas to be detected is subjected to pretreatment such as pressure regulation and drying through the sample gas treatment device 5, the sample gas to be detected enters the hydrocarbon dew point analyzer 6, the water dew point analyzer 7, the hydrogen sulfide analyzer 8 and the component analyzer 9 respectively after the pretreatment is finished to be subjected to corresponding detection and analysis, and then respective detection and analysis results are conveyed to the control system 18 through a transmission cable.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a gas transmission pipeline gas matter analysis integration detection device which characterized in that includes:
the gas outlet end of the sampling probe (1) is divided into four branches and is respectively connected with a hydrocarbon dew point analyzer (6), a water dew point analyzer (7), a hydrogen sulfide analyzer (8) and a component analyzer (9) through a stainless steel pipe (2);
a control system (18) electrically connected to the hydrocarbon dew point analyzer (6), the water dew point analyzer (7), the hydrogen sulfide analyzer (8), and the component analyzer (9), respectively.
2. The gas pipeline gas quality analysis integrated detection device according to claim 1, wherein a sample gas processing device (5) is arranged on an upstream main pipeline of the four branches at the gas outlet end of the sampling probe (1).
3. The gas pipeline gas quality analysis integrated detection device according to claim 2, wherein a filter (3) is arranged between the gas outlet end of the sampling probe (1) and the gas inlet end of the sample gas processing device (5), the filter (3) is provided with two gas outlet ends, and the gas inlet end of the sample gas processing device (5) is connected with the first gas outlet end of the filter (3) through a stainless steel pipe (2).
4. The gas pipeline gas quality analysis integrated detection device according to claim 3, wherein the second gas outlet end of the filter (3) is connected with the gas inlet end of the flow regulating device (4) through a stainless steel pipe (2), and the gas outlet end of the flow regulating device (4) is led to a safe area through the stainless steel pipe (2).
5. The gas pipeline gas quality analysis integrated detection device according to claim 4, further comprising a stainless steel cabin (17), wherein the filter (3), the flow regulating device (4), the sample gas processing device (5), the hydrocarbon dew point analyzer (6), the water dew point analyzer (7), the hydrogen sulfide analyzer (8) and the component analyzer (9) are all disposed inside the stainless steel cabin (17).
6. The gas pipeline gas quality analysis integrated detection device according to claim 5, further comprising an explosion-proof junction box (14) connected with the outside of the stainless steel cabin (17) through a connecting piece (16), wherein the hydrocarbon dew point analyzer (6), the water dew point analyzer (7), the hydrogen sulfide analyzer (8) and the component analyzer (9) are electrically connected with the control system (18) through the explosion-proof junction box (14).
7. The gas pipeline gas quality analysis integrated detection device according to claim 1, wherein the component analyzer (9) is provided redundantly.
8. The gas pipeline gas mass analysis integrated detection device according to claim 1, wherein the component analyzer (9) is a gas chromatograph analyzer.
9. The gas pipeline gas quality analysis integrated detection device according to claim 5, wherein a combustible gas detector, a hydrogen sulfide detector and a ventilation device are arranged inside the stainless steel cabin (17).
10. The gas pipeline gas quality analysis integrated detection device according to claim 4, wherein an electric tracing is arranged on the stainless steel pipe (2) between the gas outlet end of the flow regulating device (4) and the safe area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920550965.6U CN210014212U (en) | 2019-04-22 | 2019-04-22 | Gas pipeline gas quality analysis integration detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920550965.6U CN210014212U (en) | 2019-04-22 | 2019-04-22 | Gas pipeline gas quality analysis integration detection device |
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| CN210014212U true CN210014212U (en) | 2020-02-04 |
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| CN201920550965.6U Active CN210014212U (en) | 2019-04-22 | 2019-04-22 | Gas pipeline gas quality analysis integration detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005959A (en) * | 2019-04-22 | 2019-07-12 | 中国石油天然气集团有限公司 | A kind of gas pipeline makings analysis integration detection device |
| CN114593364A (en) * | 2022-02-11 | 2022-06-07 | 龙金丽 | Online gas sampling equipment in oil field oil transportation pipe |
-
2019
- 2019-04-22 CN CN201920550965.6U patent/CN210014212U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005959A (en) * | 2019-04-22 | 2019-07-12 | 中国石油天然气集团有限公司 | A kind of gas pipeline makings analysis integration detection device |
| CN114593364A (en) * | 2022-02-11 | 2022-06-07 | 龙金丽 | Online gas sampling equipment in oil field oil transportation pipe |
| CN114593364B (en) * | 2022-02-11 | 2024-05-31 | 南京溧星晨电子科技有限公司 | On-line gas sampling equipment in oil field oil delivery pipe |
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