CN215953124U - Natural gas sampling device and natural gas pipeline - Google Patents
Natural gas sampling device and natural gas pipeline Download PDFInfo
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- CN215953124U CN215953124U CN202122137287.0U CN202122137287U CN215953124U CN 215953124 U CN215953124 U CN 215953124U CN 202122137287 U CN202122137287 U CN 202122137287U CN 215953124 U CN215953124 U CN 215953124U
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Abstract
The utility model relates to a natural gas sampling device, which comprises a sampling pipeline and a sampling branch pipe, wherein one end of the sampling pipeline is provided with a natural gas inlet, the other end of the sampling pipeline is provided with a natural gas outlet, one end of the sampling branch pipe is communicated with the sampling pipeline, the other end of the sampling branch pipe is blocked, the sampling outlet is formed in the sampling branch pipe, a sampling inlet is formed in the sampling pipeline, a sampling unit is connected between the sampling inlet and the sampling outlet, the sampling unit comprises a sampling bottle, a first control valve, a second control valve and a connecting piece, the inlet and the outlet are respectively formed in two ends of the sampling bottle, the first control valve is arranged at the inlet of the sampling bottle, the second control valve is arranged at the outlet of the sampling bottle, and the connecting piece is arranged outside the sampling bottle and detachably connected with the sampling pipeline or the sampling branch pipe. The utility model improves the working efficiency of natural gas sampling, the obtained natural gas sample has better consistency, the stability of the connection between the sampling bottle and the natural gas pipeline is improved, and the safety of the sampling process is improved.
Description
Technical Field
The utility model belongs to the technical field of natural gas sampling, and particularly relates to a natural gas sampling device and a natural gas pipeline.
Background
In the performance test process of modern gas turbines and combined cycle power stations, natural gas at the inlet of a gas turbine or the inlet of a natural gas pressure regulating station is generally required to be sampled and detected. Current natural gas sampling device adopts instrument tube and sample steel bottle to carry out simple series connection, and the connection between sample steel bottle and the natural gas line is unstable enough, firm, and sealing performance is poor, leads to the sample steel bottle to take place to drop easily and causes the condition such as leakage.
In addition, when carrying out the natural gas sample at present, generally can only carry out the sample work of a natural gas sample simultaneously, if need a plurality of samples, need divide many times and take a sample. However, according to the regulations of performance test, at least two natural gas samples should be collected for each sampling monitoring, one sample is sent to qualified laboratories for analysis and testing, and the other sample needs to be kept until the analysis of all fuels is completed and the result is confirmed to be doubtful. The natural gas samples obtained by sampling for multiple times at present cannot ensure that the components of the samples obtained each time are consistent, differences may exist, the accuracy of the test result is damaged, and the sampling for multiple times consumes a large amount of time, so that the working efficiency is reduced.
Disclosure of Invention
The utility model aims to provide a natural gas sampling device, which is used for solving the problems of complicated sampling process and poor stability of a connecting structure in the prior art.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a natural gas sampling device comprises a sampling pipeline, wherein a natural gas inlet is formed at one end of the sampling pipeline, a natural gas outlet is formed at the other end of the sampling pipeline, the device further comprises a sampling branch pipe, one end of the sampling branch pipe is communicated with the sampling pipeline, the other end of the sampling branch pipe is blocked, a sampling outlet is formed in the sampling branch pipe, a sampling inlet is formed in the sampling pipeline and is positioned between the natural gas inlet and the sampling branch pipe, a sampling unit is connected between the sampling inlet and the sampling outlet and comprises a sampling bottle, a first control valve, a second control valve and a connecting piece, an inlet and an outlet are formed at the two ends of the sampling bottle respectively, the first control valve is arranged at the inlet of the sampling bottle and used for controlling the opening and closing of the inlet of the sampling bottle, the second control valve set up the exit of sampling bottle and be used for controlling the switching of sampling bottle exit, the connecting piece set up the outside of sampling bottle, just the connecting piece with sample pipeline or sample branch pipe detachably connect.
Preferably, the sampling inlet of the sampling pipeline and the sampling outlet of the sampling branch pipe are provided with a plurality of sampling inlets and sampling outlets, the number and the positions of the sampling inlets and the sampling outlets correspond to each other, and the sampling unit is connected between each sampling inlet and each sampling outlet.
Preferably, sample entry, sample export and the sample bottle between through threaded connection, sample entry, sample exit be formed with the internal thread, the both ends of sample bottle all be formed with the external screw thread, internal thread, external screw thread mutually support and form threaded connection.
Preferably, the device further comprises a third control valve, a fourth control valve and a fifth control valve for controlling the opening and closing of the sampling pipeline, wherein the third control valve is arranged at the natural gas inlet of the sampling pipeline, the fourth control valve is arranged at the natural gas outlet of the sampling pipeline, and the fifth control valve is arranged on the sampling pipeline which is positioned between the sampling inlet and the sampling branch pipe.
Further preferably, the third control valve, the fourth control valve and the fifth control valve are needle valves.
Preferably, the device further comprises a measuring assembly for measuring the pressure of the natural gas in the sampling pipeline, wherein the measuring assembly comprises a first measuring part and a second measuring part, the first measuring part is arranged at the natural gas inlet of the sampling pipeline, and the second measuring part is arranged at the natural gas outlet of the sampling pipeline.
Further preferably, the first measuring part and the second measuring part adopt pressure gauges, and the measuring range of the pressure gauges is 0-5 MPa.
Preferably, the sampling pipeline and the sampling branch pipe are made of TP304, and the diameters of the sampling pipeline and the sampling branch pipe are 8 mm.
Preferably, the connecting piece comprises a first plate body, a second plate body, a first rod piece and a second rod piece, the first plate body and the second plate body are arranged oppositely, the first plate body and the second plate body at least comprise arc sections, and an area for clamping the sampling bottle is formed between the arc sections of the first plate body and the second plate body; the both ends of first plate body all with the one end of first member rotate to be connected, the other end of first member with the both ends detachably of second plate body connect, the movably connection of one end of second member be in first member on, just the second member can follow self axis direction and stretch out and draw back, the other end detachably of second member connect sample pipeline or sample branch pipe on.
Another object of the present invention is to provide a natural gas pipeline having a natural gas sampling device.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a natural gas pipeline having a natural gas sampling device, characterized by: including natural gas line, natural gas sampling device be the aforesaid a natural gas sampling device, natural gas line on be formed with the natural gas sample export, natural gas line's natural gas sample export with the natural gas entry of sample pipeline be linked together, natural gas line's natural gas sample exit be provided with the sixth control valve, the sixth control valve be used for control the switching of natural gas sample export.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
according to the utility model, the plurality of sampling units are arranged, so that the collection of a plurality of natural gas samples can be completed simultaneously, a large amount of labor and time can be saved in the collection process, the working efficiency of natural gas sampling is improved, the obtained natural gas samples have good consistency, the accuracy of test results is ensured, the stability of connection between the sampling bottle and the natural gas pipeline is improved, the situations of natural gas leakage and the like can be prevented, and the safety of the natural gas sampling process is further improved.
Drawings
FIG. 1 is a schematic diagram of a natural gas sampling device and a natural gas pipeline system according to this embodiment;
fig. 2 is a schematic structural view of the connector of the present embodiment.
In the above drawings: 1. a natural gas pipeline; 11. a sixth control valve; 2. a natural gas sampling device; 21. a sampling pipe; 22. sampling branch pipes; 23. a sampling unit; 231. sampling a bottle; 232. a first control valve; 233. a second control valve; 234. a connecting member; 2341. a first plate body; 2342. a second plate body; 2343. a first bar member; 2344. a second bar member; 24. a third control valve; 25. a fourth control valve; 26. a fifth control valve; 27. a measurement assembly; 271. a first measuring member; 272. a second measuring member.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides a natural gas line with natural gas sampling device, as shown in fig. 1, includes natural gas line 1, natural gas sampling device 2, is formed with the natural gas sample export on the natural gas line 1, and the natural gas sample export of natural gas line 1 is linked together with natural gas sampling device 2, wherein:
a sixth control valve 11 is arranged at the natural gas sampling outlet of the natural gas pipeline 1, and the sixth control valve 11 is used for controlling the opening and closing of the natural gas sampling outlet of the natural gas pipeline 1.
Natural gas sampling device 2 includes sampling pipe 21, sample branch pipe 22, sampling unit 23, third control valve 24, fourth control valve 25, fifth control valve 26 and measuring component 27, the one end of sampling pipe 21 forms the natural gas entry, the other end of sampling pipe 21 forms the natural gas export, the natural gas entry of sampling pipe 21 is linked together with natural gas pipe 1's natural gas sample export, sampling branch pipe 22's one end and sampling pipe 21 intercommunication, sampling branch pipe 22's other end shutoff, the sample export has been seted up on the sampling branch pipe 22, the sample entry has been seted up on the sampling pipe 21, be connected with sampling unit 23 between sampling pipeline 21's the sample entry and sampling branch pipe 22's the sample export, specifically:
the sample entry of sampling pipe 21 is located sampling pipe 21 between sampling pipe 21's natural gas entry and the intercommunication sample branch pipe 22, and the sample entry of sampling pipe 21, the sample export of sample branch pipe 22 all are provided with a plurality ofly, and the sample entry of sampling pipe 21, the quantity and the position of the sample export of sample branch pipe 22 correspond to each other, all is connected with sampling unit 23 between the sample entry of every sampling pipe 21, the sample export of sample branch pipe 22, in this embodiment: the pipe section where the sampling inlet of the sampling pipeline 21 is located is parallel to the sampling branch pipe 22, 3 sampling inlets of the sampling pipeline 21 are arranged, 3 sampling outlets of the sampling branch pipe 22 are correspondingly arranged, and a sampling unit 23 is connected between the sampling inlet of each sampling pipeline 21 and the sampling outlet of the sampling branch pipe 22; the sampling pipeline 21 and the sampling branch pipe 22 are all seamless steel pipes, the materials of the sampling pipeline 21 and the sampling branch pipe 22 are all TP304, and the diameters of the sampling pipeline 21 and the sampling branch pipe 22 are both 8 mm.
The sampling unit 23 comprises a sampling bottle 231, a first control valve 232, a second control valve 233 and a connecting piece 234, wherein the two ends of the sampling bottle 231 respectively form an inlet and an outlet, the inlet of the sampling bottle 231 is communicated with the sampling inlet of the sampling pipeline 21, and the outlet of the sampling bottle 231 is communicated with the sampling outlet of the sampling branch pipe 22; the first control valve 232 is disposed at an inlet of the sampling bottle 231 and serves to control opening and closing of the inlet of the sampling bottle 231, the second control valve 233 is disposed at an outlet of the sampling bottle 231 and serves to control opening and closing of the outlet of the sampling bottle 231, the connection member 234 is disposed outside the sampling bottle 231, and the connection member 234 is detachably connected to the sampling pipe 21 or the sampling branch pipe 22. In this embodiment: through threaded connection between the sample entry of sample pipeline 21, the sample export of sample branch pipe 22 and the sample bottle 231, the sample entry of sample pipeline 21, the sample exit of sample branch pipe 22 are formed with the internal thread, and the both ends of sample bottle 231 all are formed with the external screw thread, and internal thread, external screw thread mutually support and form threaded connection.
The connecting piece 234 is used for improving the stability that the sampling bottle 231 is connected, as shown in fig. 2, the connecting piece 234 includes first plate body 2341, second plate body 2342, first pole piece 2343, second pole piece 2344, first plate body 2341, second plate body 2342 set up relatively, and first plate body 2341, second plate body 2342 all include the segmental arc at least, form the region of centre gripping sampling bottle 231 between the segmental arc of first plate body 2341, second plate body 2342, specifically:
the middle part of first plate body 2341, second plate body 2342 is formed with the segmental arc, forms anti-skidding line or sets up the slipmat in the inside of segmental arc, increases the frictional force between first plate body 2341, second plate body 2342 and the sampling bottle 231, prevents the sampling bottle 231 landing.
Both ends of first plate body 2341 all are provided with first member 2343, and the both ends of first plate body 2341 all rotate with the one end of first member 2343 and are connected, make first member 2343 can rotate around its one end, and the other end of first member 2343 is connected with the both ends detachably of second plate body 2342. In this embodiment: the both ends of second plate body 2342 all are formed with the recess, and the other end of first member piece 2343 is formed with the screw thread section, installs the nut on the screw thread section that is located the second plate body 2342 top, can make the other end card of first member piece 2343 in the recess of second plate body 2342 through the nut to and second plate body 2342 between locking.
One end of the second rod 2344 is movably connected to the first rod 2343, and the second rod 2344 is extendable and retractable in the direction of its axis, and the other end of the second rod 2344 is detachably connected to the sampling pipe 21 or the sampling branch pipe 22. In this embodiment: the one end of second member 2344 is movably established on the screw thread section of first member 2343, and the other end of second member 2344 is provided with the elastic component, is connected with the couple on the elastic component, makes second member 2344 can stretch out and draw back along self axis direction and the couple can be connected with sample pipeline 21 or sample branch pipe 22.
The third control valve 24, the fourth control valve 25 and the fifth control valve 26 are arranged on the sampling pipeline 21 and are used for controlling the opening and closing of the sampling pipeline 21. A third control valve 24 is provided at the natural gas inlet of the sampling pipe 21, a fourth control valve 25 is provided at the natural gas outlet of the sampling pipe 21, and a fifth control valve 26 is provided on the sampling pipe 21 between the sampling inlet of the sampling pipe 21 and the communicating sampling branch pipe 22. In this embodiment: needle valves are adopted for the third control valve 24, the fourth control valve 25 and the fifth control valve 26; the third control valve 24 provided at the natural gas inlet of the sampling pipe 21 is screw-coupled with the sixth control valve 11 provided at the natural gas sampling outlet of the natural gas pipe 1.
The measuring assembly 27 is arranged on the sampling pipeline 21 and used for measuring the pressure of natural gas in the sampling pipeline 21, the measuring assembly 27 comprises a first measuring piece 271 and a second measuring piece 272, the first measuring piece 271 is arranged at the natural gas inlet of the sampling pipeline 21, and the second measuring piece 272 is arranged at the natural gas outlet of the sampling pipeline 21. In this embodiment: the first measuring part 271 and the second measuring part 272 adopt pressure gauges, and the measuring range of the pressure gauges is 0-5 MPa.
In the working process of the embodiment:
the natural gas sampling device 2 is communicated with the natural gas pipeline 1, the sampling unit 23 is installed, so that the inlet and the outlet of the sampling bottle 231 are respectively communicated with the sampling inlet of the sampling pipeline 21 and the sampling outlet of the sampling branch pipe 22, and the other end of the second rod 2344 of the connecting piece 234 is connected with the sampling pipeline 21; zero calibration is carried out on the first measuring part 271 and the second measuring part 272, the connection between the natural gas sampling device 2 and the natural gas pipeline 1 is confirmed, and the first control valve 232 and the second control valve 233 of each sampling unit 23 are opened; opening the sixth control valve 11 and the third control valve 24, closing the fourth control valve 25 and the fifth control valve 26, starting to increase the readings of the first measuring part 271 and the second measuring part 272, closing the sixth control valve 11 and the third control valve 24 when the readings of the first measuring part 271 and the second measuring part 272 are consistent and are kept unchanged, opening the fourth control valve 25, closing the fourth control valve 25 when the readings of the first measuring part 271 and the second measuring part 272 are reduced to zero, and repeating the operation for 2-3 times; after the above steps are completed, the sixth control valve 11 and the third control valve 24 are opened again, the fourth control valve 25 and the fifth control valve 26 are closed, the readings of the first measuring part 271 and the second measuring part 272 are increased, when the readings of the first measuring part 271 and the second measuring part 272 are consistent and are kept unchanged, the sixth control valve 11 and the third control valve 24 are closed, the first control valve 232 and the second control valve 233 of each sampling unit 23 are closed, the fourth control valve 25 and the fifth control valve 26 are opened, and when the readings of the first measuring part 271 and the second measuring part 272 are reduced to zero, each sampling unit 23 is taken down, natural gas sampling is completed, and a plurality of natural gas samples are obtained.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides a natural gas sampling device, includes the sample pipeline, the one end of sample pipeline form the natural gas entry, the other end of sample pipeline form the natural gas export, its characterized in that: the device also comprises a sampling branch pipe, one end of the sampling branch pipe is communicated with the sampling pipeline, the other end of the sampling branch pipe is blocked, a sampling outlet is arranged on the sampling branch pipe, a sampling inlet is arranged on the sampling pipeline, the sampling inlet is positioned on the natural gas inlet and is communicated with the sampling pipeline between the sampling branch pipes, a sampling unit is connected between the sampling inlet and the sampling outlet, the sampling unit comprises a sampling bottle, a first control valve, a second control valve and a connecting piece, the inlet and the outlet are respectively formed at the two ends of the sampling bottle, the first control valve is arranged at the inlet of the sampling bottle and is used for controlling the opening and closing of the inlet of the sampling bottle, the second control valve is arranged at the outlet of the sampling bottle and is used for controlling the opening and closing of the outlet of the sampling bottle, the connecting piece set up the outside of sampling bottle, just the connecting piece with sample pipeline or sample branch pipe detachably connect.
2. The natural gas sampling device of claim 1, wherein: the sampling pipeline is characterized in that a plurality of sampling inlets and sampling outlets of the sampling branch pipes are arranged, the number and the positions of the sampling inlets and the sampling outlets correspond to each other, and each sampling inlet and the sampling outlet is connected with a sampling unit.
3. The natural gas sampling device of claim 1, wherein: sample entry, sample export with the sample bottle between through threaded connection, sample entry, sample exit be formed with the internal thread, the both ends of sample bottle all be formed with the external screw thread, internal thread, external screw thread mutually support and form threaded connection.
4. The natural gas sampling device of claim 1, wherein: the device still including be used for control the third control valve, fourth control valve, the fifth control valve of sample pipeline switching, the third control valve set up sample pipeline's natural gas entrance, the fourth control valve set up sample pipeline's natural gas exit, the fifth control valve set up and be located sample entry and intercommunication sample branch pipe between the sample pipeline on.
5. The natural gas sampling device of claim 4, wherein: and needle valves are adopted by the third control valve, the fourth control valve and the fifth control valve.
6. The natural gas sampling device of claim 1, wherein: the device still including be used for measuring the sample pipeline in the measurement subassembly of natural gas pressure, the measurement subassembly include first measuring part, second measuring part, first measuring part set up the natural gas entrance of sample pipeline, the second measuring part set up the natural gas exit of sample pipeline.
7. The natural gas sampling device of claim 6, wherein: the first measuring part and the second measuring part adopt pressure gauges, and the measuring range of the pressure gauges is 0-5 MPa.
8. The natural gas sampling device of claim 1, wherein: the sampling pipeline and the sampling branch pipe are made of TP304, and the diameters of the sampling pipeline and the sampling branch pipe are 8 mm.
9. The natural gas sampling device of claim 1, wherein: the connecting piece comprises a first plate body, a second plate body, a first rod piece and a second rod piece, wherein the first plate body and the second plate body are arranged oppositely and at least comprise arc sections, and an area for clamping the sampling bottle is formed between the arc sections of the first plate body and the second plate body; the both ends of first plate body all with the one end of first member rotate to be connected, the other end of first member with the both ends detachably of second plate body connect, the movably connection of one end of second member be in first member on, just the second member can follow self axis direction and stretch out and draw back, the other end detachably of second member connect sample pipeline or sample branch pipe on.
10. A natural gas pipeline having a natural gas sampling device, characterized by: the natural gas sampling device comprises a natural gas pipeline and a natural gas sampling device, wherein the natural gas sampling device is as claimed in any one of claims 1 to 9, a natural gas sampling outlet is formed in the natural gas pipeline, the natural gas sampling outlet of the natural gas pipeline is communicated with a natural gas inlet of the sampling pipeline, a sixth control valve is arranged at the natural gas sampling outlet of the natural gas pipeline, and the sixth control valve is used for controlling the opening and closing of the natural gas sampling outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122137287.0U CN215953124U (en) | 2021-09-06 | 2021-09-06 | Natural gas sampling device and natural gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122137287.0U CN215953124U (en) | 2021-09-06 | 2021-09-06 | Natural gas sampling device and natural gas pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN215953124U true CN215953124U (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122137287.0U Active CN215953124U (en) | 2021-09-06 | 2021-09-06 | Natural gas sampling device and natural gas pipeline |
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|---|---|
| CN (1) | CN215953124U (en) |
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2021
- 2021-09-06 CN CN202122137287.0U patent/CN215953124U/en active Active
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