CN210834812U - Real-time analysis device for hydrogen sulfide in gas transmission pipeline - Google Patents
Real-time analysis device for hydrogen sulfide in gas transmission pipeline Download PDFInfo
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- CN210834812U CN210834812U CN201920182511.8U CN201920182511U CN210834812U CN 210834812 U CN210834812 U CN 210834812U CN 201920182511 U CN201920182511 U CN 201920182511U CN 210834812 U CN210834812 U CN 210834812U
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Abstract
The utility model discloses a gas transmission pipeline hydrogen sulfide real-time analysis device, include: the sampling probe is connected with the gas transmission pipeline; the inlet of the sample gas pipeline is connected with a first pressure reducing valve, and a first stop valve, a diaphragm type filter, a second stop valve, a pneumatic valve and a second stop valve are sequentially arranged on the sample gas pipeline,The check valve, the fourth stop valve and the pressure regulator; range gas line, its inlet and H2The S range gas steel cylinder is connected with a second reducing valve and a fifth stop valve which are arranged in sequence; zero gas line, its inlet and H2The S zero gas steel cylinder is connected with a third reducing valve and a sixth stop valve which are arranged in sequence; h2S analyzer with sample gas inlet connected to sample gas pipeline outlet, H2S analyzer range gas inlet connected to range gas pipeline outlet, H2The zero gas inlet of the S analyzer is connected with the outlet of the zero gas pipeline, H2The exhaust port of the S analyzer is connected with the atmosphere; station control system, pneumatic valve, pressure regulator and H2And an S analyzer is connected. The utility model has the advantages that: the analysis speed is fast, the automation degree is high, and the detection is accurate.
Description
Technical Field
The utility model relates to a pipe-line system technical field particularly, relates to a gas transmission pipeline hydrogen sulfide real-time analysis device.
Background
During the operation of the pipeline, due to the metering connection with a third party, the requirement on the components is high, and the components need to be sampled and analyzed. The traditional pipeline needs to sample from the pipeline, perform off-line analysis after sampling, and manually input the analyzed component information into a system to realize the analysis. The method cannot automatically perform component analysis on line, and has the problems of large personnel load, complex process, long time consumption, insufficient real-time performance and the like, so that the accuracy of the components of the gas pipeline is not high.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, an object of the present invention is to provide a hydrogen sulfide sensor for gas transmission pipeline with faster real-time analysis speed and high automation degreeTime analysis device, increasing gas pipeline H2And (3) the accuracy of S content detection.
The utility model provides a gas transmission pipeline hydrogen sulfide real-time analysis device, include:
the sampling probe is connected with the gas transmission pipeline, and the upper part of the sampling probe is connected with the first pressure reducing valve;
the inlet of the sample gas pipeline is connected with the first pressure reducing valve, and the sample gas pipeline is sequentially provided with a first stop valve, a diaphragm type filter, a second stop valve, a pneumatic valve, a one-way valve, a fourth stop valve and a pressure regulator;
range gas line, its inlet and H2S, connecting the range gas steel cylinders, and sequentially arranging a second pressure reducing valve and a fifth stop valve on the range gas pipeline;
zero gas line, its inlet and H2S, connecting zero gas steel cylinders, and sequentially arranging a third pressure reducing valve and a sixth stop valve on the zero gas pipeline;
H2s analyzer with sample gas inlet connected to sample gas pipeline outlet, H analyzer2The measuring range gas inlet of the S analyzer is connected with the outlet of the measuring range gas pipeline, and the H is2The zero gas inlet of the S analyzer is connected with the outlet of the zero gas pipeline, and the H2An exhaust port of the S analyzer is connected to the atmosphere;
station control system, and the pneumatic valve, the pressure regulator and the H2And the S analyzer is connected.
As a further improvement of the utility model, the diaphragm type filter is connected with the blowoff valve through a stainless steel pipe.
As a further improvement of the present invention, the present invention further includes a position between the second stop valve and the filter on the pipeline first tee joint with be located between the check valve and the fourth stop valve on the pipeline second tee joint, first tee joint first end with the filter links to each other, first tee joint second end with the second stop valve links to each other, second tee joint first end with the check valve links to each other, second tee joint second end with the fourth stop valve links to each other, first tee joint third end with the second tee joint third end links to each other, just first tee joint third end with be equipped with the third stop valve on the pipeline between the second tee joint third end.
As a further improvement, the utility model discloses still including being located the fourth stop valve with third tee bend on the pipeline between the voltage regulator, third tee bend first end with the stop valve links to each other, third tee bend second end with the voltage regulator links to each other, third tee bend third termination has first manometer.
As a further improvement of the present invention, the system further comprises a voltage regulator and the H2And a fourth tee joint on the pipeline between the S analyzers, wherein the first end of the fourth tee joint is connected with the pressure regulator, and the third end of the fourth tee joint is connected with a second pressure gauge.
As a further improvement of the present invention, the fourth tee joint further comprises a third joint located between the fourth tee joint and the H2A fifth tee joint on a pipeline between the S analyzer and a sixth tee joint on a pipeline between the fifth tee joint and the atmosphere, wherein the first end of the fifth tee joint is connected with the second end of the fourth tee joint, and the second end of the fifth tee joint is connected with the H2The sample gas inlet of the S analyzer is connected, the first end of the sixth tee is connected with the third end of the fifth tee, the second end of the sixth tee is connected to the atmosphere, and the third end of the sixth tee is connected with the H2And an exhaust port of the S analyzer is connected, and a safety relief valve is arranged on a pipeline between the third end of the fifth tee joint and the first end of the sixth tee joint.
As a further improvement of the utility model, the sampling probe is connected with the gas transmission pipeline through the welding short pipe.
As a further improvement, the two ends of the second pressure reducing valve are respectively provided with a third pressure gauge and a fourth pressure gauge.
As a further improvement, the two ends of the third pressure reducing valve are respectively provided with a fifth pressure gauge and a sixth pressure gauge.
As a further improvement, the utility model also comprises an explosion-proof junction box, the voltage regulatorConnected to the explosion-proof junction box by a first cable, H2The S analyzer is connected with the explosion-proof junction box through a second cable, the pneumatic valve is connected with the explosion-proof junction box through a fourth cable, and the explosion-proof junction box is connected with the station control system through a third cable.
The utility model has the advantages that:
can realize the gas transmission pipeline H2Automatic on-line analysis of S gas component and improvement of gas transmission pipeline H2The accuracy and timeliness of S content detection enable the online analysis of gas components in the gas pipeline to be more practical, and personnel load is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a real-time analysis device for hydrogen sulfide in 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. welding short sections; 2. a sampling probe; 3. a first pressure reducing valve; 4. a first shut-off valve; 5. a membrane type filter; 6. a stainless steel tube; 7. a blowoff valve; 8. a filter; 9. a first tee joint; 10. a second stop valve; 11. a pneumatic valve; 12. a one-way valve; 13. a second tee joint; 14. a third stop valve; 15. a fourth stop valve; 16. a third tee joint; 17. a first pressure gauge; 18. a voltage regulator; 19. a fourth tee joint; 20. a second pressure gauge; 21. a fifth tee joint; 22. h2S, an analyzer; 23. a safety blow-off valve; 24. a sixth tee joint; 25. h2S range gas cylinder; 26. a second pressure reducing valve; 27. a third pressure gauge; 28. a fourth pressure gauge; 29. a fifth stop valve; 30. h2S, a zero gas steel cylinder; 31. a third pressure reducing valve; 32. a fifth pressure gauge; 33. a sixth pressure gauge; 34. a sixth stop valve; 35. a first cable; 36. a second cable; 37. A third cable; 38. a fourth cable; 39. explosion-proof junction box.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
The embodiment of the utility model provides a gas pipeline hydrogen sulfide real-time analysis device, with H2S analyzer shouldThe gas composition analysis device is used for a gas pipeline, and automatic online analysis of gas components in the gas pipeline is realized. As shown in fig. 1, the utility model discloses a real-time analysis device of gas transmission pipeline hydrogen sulfide includes: sampling probe 2, sample gas pipeline, measuring range gas pipeline, zero gas pipeline and H2 An S analyzer 22 and a station control system.
The sampling probe 2 is connected with the gas transmission pipeline through the welding short pipe 1, and the upper part of the sampling probe 2 is connected with the first pressure reducing valve 3.
The inlet of the sample gas pipeline is connected with the first pressure reducing valve 3, and the outlet of the sample gas pipeline is connected with the H2The sample gas inlet of the S analyzer 22 is connected to inject the sample gas taken out by the sampling probe 2 into the H2S analyzer 22. The sample gas pipeline is sequentially provided with a first stop valve 4, a diaphragm type filter 5, a filter 8, a second stop valve 10, a pneumatic valve 11, a one-way valve 12, a fourth stop valve 15 and a pressure regulator 18. Preferably, the regulator 18 is provided with a heater.
Further, the diaphragm type filter 5 is connected with a blowoff valve 7 through a stainless steel pipe 6, and after the analysis is completed, the blowoff valve 7 is opened to discharge part of residual gas in the sample gas pipeline to a safe area.
Furthermore, a first tee joint 9 is arranged on a pipeline between the filter 8 and the second stop valve 10, and a second tee joint 13 is arranged on a pipeline between the one-way valve 12 and the fourth stop valve 15. The first end of the first tee joint 9 is connected with the filter 8, the second end of the first tee joint 9 is connected with the second stop valve 10, the first end of the second tee joint 13 is connected with the one-way valve 12, the second end of the second tee joint 13 is connected with the fourth stop valve 15, the third end of the first tee joint 9 is connected with the third end of the second tee joint 13, and a third stop valve 14 is arranged on a pipeline between the third end of the first tee joint 9 and the third end of the second tee joint 13. The check valve 12 is to prevent reverse flow and is prone to malfunction, and the third stop valve 14 is provided mainly to prevent malfunction of the check valve 12 and facilitate maintenance.
Further, a third tee joint 16, a pressure regulator 18 and an H-shaped tee joint are arranged on a pipeline between the fourth stop valve 15 and the pressure regulator 182A fourth tee 19 is arranged on the pipeline between the S analyzer 22. A first end of a third tee joint 16 is connected with a fourth stop valve 15, a second end of the third tee joint 16 is connected with a pressure regulator 18, and a third tee joint 16The third end of the tube 16 is connected with a first pressure gauge 17. The first end of the fourth tee 19 is connected with the pressure regulator 18, and the third end of the fourth tee 19 is connected with a second pressure gauge 20. In the process of regulating the pressure of the pressure regulator 18, the first pressure gauge 17 and the second pressure gauge 20 monitor the pressure value on the sample gas pipeline in real time.
Further, a fourth tee 19 and H2A fifth tee joint 21 is arranged on a pipeline between the S analyzer 22, and a sixth tee joint 24 is arranged on a pipeline between the fifth tee joint 21 and the atmosphere. The first end of the fifth tee 21 is connected with the second end of the fourth tee 19, and the second end of the fifth tee 21 is connected with H2A sample gas inlet of the S analyzer 22 is connected, a first end of a sixth tee 24 is connected with a third end of the fifth tee 21, a second end of the sixth tee 24 is connected to the atmosphere, and a third end of the sixth tee 24 is connected with the H2S analyzer 22 connected to the exhaust port, H2An exhaust port of the S analyzer 22 is connected to the atmosphere, and a safety relief valve 23 is arranged on a pipeline between the third end of the fifth tee joint 21 and the first end of the sixth tee joint 24. After the analysis is completed, the safety relief valve 23 is opened to discharge part of the residual gas in the sample gas pipeline to the atmosphere.
Inlet of range gas pipeline and H2S range gas cylinder 25 is connected, and the outlet of range gas pipeline is connected with H2The range gas inlet of the S analyzer 22 is connected, and a second reducing valve 26 and a fifth stop valve 29 are sequentially arranged on the range gas pipeline.
Further, a third pressure gauge 27 and a fourth pressure gauge 28 are respectively arranged at two ends of the second pressure reducing valve 26, and pressure values on the measuring range air pipeline are monitored in real time.
Zero gas line inlet and H2S zero gas cylinder 30 is connected, and the outlet of the zero gas pipeline is connected with H2The zero gas inlet of the S analyzer 22 is connected to each other, and a third pressure reducing valve 31 and a sixth stop valve 34 are sequentially provided in the zero gas line.
Further, a fifth pressure gauge 32 and a sixth pressure gauge 33 are respectively arranged at two ends of the third pressure reducing valve 31, and pressure values on the zero-point gas pipeline are monitored in real time.
Further, H2S analyzer 22 is high precision H2And (4) an S analyzer.
Air-operated valve 11, pressure regulator 18, and H2 The S analyzer 22 is connected to a station control system, which is PLC or DCS, etc., respectively.
Further, an explosion-proof junction box 39 is further included, and the explosion-proof junction box 39 is connected with the station control system through a third cable 37. The pressure regulator 18 is connected with an explosion-proof junction box 39 through a first cable 35, and a pressure signal of the pressure regulator 18 is connected to the station control system. H2The S analyzer 22 is connected to an explosion-proof junction box 39 via a second cable 36 to connect H to2And the real-time analysis result of the S analyzer 22 is accessed to the station control system. The air-operated valve 11 is connected with an explosion-proof junction box 39 through a fourth cable 38, and a valve signal of the air-operated valve 11 is connected to the station control system.
The sample gas pipeline, the measuring range gas pipeline and the zero gas pipeline are all stainless steel pipes 6. Further, the stainless steel pipe 6 is provided with an electric heat tracing according to the ambient temperature and the like in consideration of the outdoor environment.
The utility model discloses a gas transmission pipeline hydrogen sulfide real-time analysis device's concrete detection principle does: first of all, multiple injections of H through zero gas line2S zero gas, to H2Zero calibration of the S analyzer 22. Then injected H through the process gas pipeline2S range gas, H2Zero calibration of the S analyzer 22. Then, a representative sample gas is obtained from the gas pipeline filled with the high-pressure natural gas by the sampling probe 2. The sample gas filling H meeting the conditions is obtained by utilizing devices such as filtering, pressure regulating and the like on the sample gas pipeline2S analyzer 22, then from H2And the S analyzer analyzes the sample gas and outputs component information to the station control system.
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 real-time analytical equipment of gas transmission pipeline hydrogen sulfide which characterized in that includes:
the sampling probe (2) is connected with the gas transmission pipeline, and the upper part of the sampling probe (2) is connected with the first pressure reducing valve (3);
the inlet of the sample gas pipeline is connected with the first pressure reducing valve (3), and the sample gas pipeline is sequentially provided with a first stop valve (4), a diaphragm type filter (5), a filter (8), a second stop valve (10), a pneumatic valve (11), a one-way valve (12), a fourth stop valve (15) and a pressure regulator (18);
range gas line, its inlet and H2The S measuring range gas steel cylinder (25) is connected, and a second reducing valve (26) and a fifth stop valve (29) are sequentially arranged on the measuring range gas pipeline;
zero gas line, its inlet and H2The S zero gas steel cylinder (30) is connected, and a third reducing valve (31) and a sixth stop valve (34) are sequentially arranged on the zero gas pipeline;
H2an S analyzer (22) having a sample gas inlet connected to the outlet of the sample gas line, H2The range gas inlet of the S analyzer (22) is connected with the outlet of the range gas pipeline, and the H is2A zero gas inlet of the S analyzer (22) is connected with an outlet of the zero gas pipeline, and the H is2An exhaust port of the S analyzer (22) is connected to the atmosphere;
a station control system associated with the pneumatic valve (11), the pressure regulator (18) and the H2The S analyzer (22) is connected.
2. The real-time analysis device for hydrogen sulfide in a gas pipeline according to claim 1, wherein the diaphragm type filter (5) is connected with a blowdown valve (7) through a stainless steel pipe (6).
3. The real-time analysis device for hydrogen sulfide in gas transmission pipelines according to claim 1, further comprising a first three-way joint (9) located on the pipeline between the filter (8) and the second stop valve (10) and a second three-way joint (13) located on the pipeline between the one-way valve (12) and the fourth stop valve (15), the first end of the first tee joint (9) is connected with the filter (8), the second end of the first tee joint (9) is connected with the second stop valve (10), the first end of the second tee joint (13) is connected with the one-way valve (12), the second end of the second tee joint (13) is connected with the fourth stop valve (15), the third end of the first tee joint (9) is connected with the third end of the second tee joint (13), and a third stop valve (14) is arranged on a pipeline between the third end of the first tee joint (9) and the third end of the second tee joint (13).
4. The real-time analysis device for hydrogen sulfide in a gas transmission pipeline according to claim 1, further comprising a third tee joint (16) located on a pipeline between the fourth stop valve (15) and the pressure regulator (18), wherein a first end of the third tee joint (16) is connected with the fourth stop valve (15), a second end of the third tee joint (16) is connected with the pressure regulator (18), and a third end of the third tee joint (16) is connected with a first pressure gauge (17).
5. The real-time analysis device for hydrogen sulfide in gas transmission pipeline according to claim 1, further comprising a pressure regulator (18) and a H-shaped pressure regulator2And a fourth tee joint (19) on the pipeline between the S analyzer (22), wherein the first end of the fourth tee joint (19) is connected with the pressure regulator (18), and the third end of the fourth tee joint (19) is connected with a second pressure gauge (20).
6. The real-time analysis device for hydrogen sulfide in gas transmission pipeline according to claim 5, further comprising a fourth tee joint (19) and the H2A fifth tee joint (21) on the pipeline between the S analyzer (22) and a sixth tee joint (24) on the pipeline between the fifth tee joint (21) and the atmosphere, wherein the first end of the fifth tee joint (21) is connected with the second end of the fourth tee joint (19), and the second end of the fifth tee joint (21) is connected with the H2A sample gas inlet of the S analyzer (22) is connected, a first end of a sixth tee joint (24) is connected with a third end of a fifth tee joint (21), a second end of the sixth tee joint (24) is connected to the atmosphere, and a third end of the sixth tee joint (24) is connected with the H2And an exhaust port of the S analyzer (22) is connected, and a safety relief valve (23) is arranged on a pipeline between the third end of the fifth tee joint (21) and the first end of the sixth tee joint (24).
7. The real-time analysis device for hydrogen sulfide in a gas transmission pipeline according to claim 1, wherein the sampling probe (2) is connected with the gas transmission pipeline through a welding short pipe (1).
8. The real-time analysis device for hydrogen sulfide in gas transmission pipelines according to claim 1, wherein a third pressure gauge (27) and a fourth pressure gauge (28) are respectively arranged at two ends of the second pressure reducing valve (26).
9. The real-time analysis device for hydrogen sulfide in gas transmission pipelines according to claim 1, wherein a fifth pressure gauge (32) and a sixth pressure gauge (33) are respectively arranged at two ends of the third pressure reducing valve (31).
10. The real-time analysis device for hydrogen sulfide in gas transmission pipelines according to claim 1, characterized by further comprising an explosion-proof junction box (39), wherein the pressure regulator (18) is connected with the explosion-proof junction box (39) through a first cable (35), and the H is2The S analyzer (22) is connected with the explosion-proof junction box (39) through a second cable (36), the pneumatic valve (11) is connected with the explosion-proof junction box (39) through a fourth cable (38), and the explosion-proof junction box (39) is connected with a station control system through a third cable (37).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920182511.8U CN210834812U (en) | 2019-02-01 | 2019-02-01 | Real-time analysis device for hydrogen sulfide in gas transmission pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920182511.8U CN210834812U (en) | 2019-02-01 | 2019-02-01 | Real-time analysis device for hydrogen sulfide in gas transmission pipeline |
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| CN210834812U true CN210834812U (en) | 2020-06-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856334A (en) * | 2019-02-01 | 2019-06-07 | 中国石油天然气集团公司 | A kind of real-time analytical equipment of gas pipeline hydrogen sulfide |
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2019
- 2019-02-01 CN CN201920182511.8U patent/CN210834812U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856334A (en) * | 2019-02-01 | 2019-06-07 | 中国石油天然气集团公司 | A kind of real-time analytical equipment of gas pipeline hydrogen sulfide |
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