CN211856049U - Natural gas steady voltage sampling device - Google Patents
Natural gas steady voltage sampling device Download PDFInfo
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- CN211856049U CN211856049U CN201922278646.7U CN201922278646U CN211856049U CN 211856049 U CN211856049 U CN 211856049U CN 201922278646 U CN201922278646 U CN 201922278646U CN 211856049 U CN211856049 U CN 211856049U
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Abstract
The utility model provides a natural gas steady voltage sampling device belongs to natural gas sampling device technical field. Opening the pressurize stop valve and establishing pressure and this pressure is less than the pressure that the natural gas was hidden at sampling bottle one end, treat that sampling bottle one end manometer registration is stable, and the pressure of sampling bottle one end remains stable, closes the pressurize stop valve. Open the sample stop valve, the natural gas in the natural gas reservoir can get into the other end of sampling bottle under higher pressure effect, and sampling bottle one end has established pressure, and the natural gas is not direct from the environment that high pressure environment entering pressure is very low after getting into the sampling bottle, and throttling expansion can not appear in the natural gas, guarantees the steady voltage sample of natural gas. After the manometer registration reaches the stability again, can further open the pressurize flow control valve of sampling bottle one end, pressurize flow control valve adjusts the air current flow, and the natural gas of sampling bottle one end can slowly release, and the other end of sampling bottle can continue slowly to get into the natural gas simultaneously, is full of natural gas in the sampling bottle.
Description
Technical Field
The utility model relates to a natural gas sampling device technical field, in particular to natural gas steady voltage sampling device.
Background
Natural gas is used as high-quality, efficient, green and clean low-carbon energy, the position of the natural gas in world energy consumption is increasingly improved, and the natural gas has a wide development prospect. Natural gas is usually developed and collected in a natural gas reservoir, and before the natural gas reservoir is actually developed and collected, the natural gas in the natural gas reservoir needs to be sampled, and after the sampling, the subsequent collection of the natural gas reservoir is determined after the sampled natural gas is detected.
When adopting sampling device to take a sample to the natural gas at present, can be through setting up a sampling bottle, sampling bottle one end and natural gas are hidden the intercommunication, set up the piston in the sampling bottle, are connected with the control lever on the piston, and the other end of sampling bottle is stretched out to the control lever. Can control the pressure between sampling bottle and the natural gas reservoir through the pulling control lever and keep stable as far as possible, guarantee the steady voltage sample of natural gas reservoir, avoid appearing highly compressed natural gas when the lower sampling bottle of entering pressure, the throttle inflation appears because the pressure shock falls in the natural gas, lead to the temperature reduction of the natural gas of sample, and then certain heavy hydrocarbon component takes place the condensation in the natural gas of sample and the natural gas of final sample loses the representativeness. However, the sampling device needs manual operation, pressure regulation is difficult to control, the situation that the natural gas is throttled and expanded due to unbalance of the pressure in the sampling bottle is easy to occur, and the representativeness of the natural gas sample in the sampling bottle is difficult to ensure.
SUMMERY OF THE UTILITY MODEL
The embodiment of the disclosure provides a natural gas steady voltage sampling device, can guarantee the steady voltage sample of natural gas, guarantees the representativeness of the natural gas of sample. The technical scheme is as follows:
the embodiment of the disclosure provides a natural gas pressure stabilizing sampling device, which comprises a sampling container, a pressure maintaining stop valve, a pressure maintaining flow regulating valve, a pressure gauge and a sampling stop valve,
the sampling container comprises a sampling bottle and a piston, the piston is arranged in the sampling bottle in a sliding mode along the axial direction of the sampling bottle, the piston is arranged between the inner walls of the sampling bottle in a sealing mode, one end of the sampling bottle is communicated with the pressure maintaining stop valve and the natural gas reservoir in sequence, one end of the sampling bottle is communicated with the pressure maintaining flow regulating valve, the pressure gauge is arranged on one end of the sampling bottle, and the other end of the sampling bottle is communicated with the sampling stop valve and the natural gas reservoir in sequence.
Optionally, the natural gas steady voltage sampling device still includes the relief pressure valve, the relief pressure valve sets up between the one end of sample bottle and pressurize flow control valve.
Optionally, the natural gas pressure-stabilizing sampling device further includes a pressure-maintaining side gas recovery container and a sampling side gas recovery container, the pressure-maintaining side gas recovery container is sequentially communicated with the pressure-maintaining flow control valve and one end of the sampling bottle, and the sampling side gas recovery container is sequentially communicated with the flow control valve and the other end of the sampling bottle.
Optionally, the natural gas steady voltage sampling device still includes sample flow control valve, the other end intercommunication of sample bottle sample flow control valve.
Optionally, the sampling bottle comprises a sampling cylinder, a pressure maintaining cover and a sampling cover, the pressure maintaining cover and the sampling cover are respectively connected to two ends of the sampling cylinder in a sealing manner, the pressure maintaining cover is provided with a pressure maintaining through hole a, and the sampling cover is provided with a sampling through hole.
Optionally, the piston is arranged in the sampling tube, and a sealing ring is arranged between the piston and the inner wall of the sampling tube.
Optionally, the natural gas steady voltage sampling device still includes the box, the pressurize stop valve the pressurize flow control valve, the manometer with the sample stop valve all sets up in the box.
Optionally, the natural gas pressure stabilizing and sampling device further comprises rollers, and the rollers are arranged on two sides of the box body in a rolling manner.
Optionally, the natural gas pressure stabilizing and sampling device further comprises at least one of a roller and a handle, the roller is arranged on two sides of the box body in a rolling manner, and the handle is fixedly connected with the box body.
Optionally, the natural gas steady voltage sampling device still includes sampling bottle quick-operation joint, sampling bottle quick-operation joint sets up on the box, sampling bottle quick-operation joint with the both ends of sampling bottle pass through the tube coupling.
Optionally, a control valve rod of the holding pressure cutoff valve, a control valve rod of the holding pressure flow regulating valve, and a control valve rod of the sampling cutoff valve are all centrally disposed on the mounting surface of the case.
The technical scheme provided by the embodiment of the disclosure has the following beneficial effects: when the natural gas pressure stabilizing sampling device is used for extracting natural gas, the pressure maintaining stop valve can be opened, natural gas in a natural gas reservoir is introduced into one end of the sampling bottle, a certain pressure is established at one end of the sampling bottle, and the pressure is slightly smaller than or equal to the pressure of the natural gas reservoir. The piston keeps apart the one end and the other end of sampling bottle, and when the pressure of sampling bottle one end and the other end changed, the piston removed in the sampling bottle. After the reading of the pressure gauge at one end of the sampling bottle is stable, the pressure at one end of the sampling bottle is kept stable, and the pressure maintaining stop valve is closed. Open the sample stop valve again, the back is opened to the sample stop valve, and the natural gas in the natural gas reservoir can get into the other end of sampling bottle under higher pressure effect, because certain pressure has been established to the one end of sampling bottle, the natural gas is not direct from the very low environment of high pressure environment entering pressure behind the entering sampling bottle, and the expanded condition of throttle can not appear in the natural gas, guarantees the steady voltage sample of natural gas, and the manometer registration reaches after stabilizing once more. The pressurize flow control valve with sampling bottle one end can be further opened, and the air current slow release of sampling bottle one end can be controlled to pressurize flow control valve, and the pressure of sampling bottle one end slowly reduces, and the other end of sampling bottle can slowly get into the natural gas simultaneously this moment, and the pressurize flow control valve is closed to being full of the natural gas in the sampling bottle. The natural gas always enters the sampling bottle at a slow speed, and the pressure environment is relatively stable when the natural gas enters the sampling bottle, so that the representativeness of natural gas sampling is ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings used in the description of the embodiments will be briefly introduced,
fig. 1 is a schematic diagram of a natural gas pressure-stabilizing sampling device provided in an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a sampling bottle provided in an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a natural gas pressure-stabilizing sampling device provided by the embodiment of the disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a natural gas pressure-stabilizing sampling device provided by an embodiment of the present disclosure, and as shown in fig. 1, the natural gas pressure-stabilizing sampling device includes a sampling container 1, a pressure-maintaining stop valve 2, a pressure-maintaining flow regulating valve 3, a pressure gauge 4, and a sampling stop valve 5.
Sampling container 1 includes sampling bottle 101 and piston 102, piston 102 sets up in sampling bottle 101 along the axial slidable of sampling bottle 101, sealed setting between the inner wall of piston 102 and sampling bottle 101, the one end of sampling bottle 101 communicates pressurize stop valve 2 and natural gas in proper order and holds, the one end of sampling bottle 101 still communicates pressurize flow control valve 3, manometer 4 sets up in one of sampling bottle 101 and serves, the other end of sampling bottle 101 communicates sample stop valve 5 and natural gas in proper order and holds.
When the natural gas pressure stabilizing sampling device is used for extracting natural gas, the pressure maintaining stop valve 2 can be opened, natural gas in a natural gas reservoir is fed into one end of the sampling bottle 101, a certain pressure is established at one end of the sampling bottle 101, and the pressure is slightly smaller than or equal to the pressure of the natural gas in the natural gas reservoir. The piston 102 isolates one end of the sampling bottle 101 from the other end thereof, and the piston 102 moves in the sampling bottle 101 when the pressure at one end of the sampling bottle 101 changes. After the reading of the pressure gauge 4 at one end of the sampling bottle 101 is stable, the pressure at one end of the sampling bottle 101 is kept stable, and the pressure maintaining stop valve 2 is closed. Open sampling stop valve 5 again, the back is opened to sampling stop valve 5, and the natural gas in the natural gas reservoir can get into the other end of sampling bottle 101 under higher pressure effect, because certain pressure has been established to the one end of sampling bottle 101, the natural gas is not directly from the very low environment of high pressure environment entering pressure behind the entering sampling bottle 101, and the gas can not appear the expanded condition of throttle, guarantees the stable sample of natural gas, and 4 readings of manometer reach after stable once more. Can further open the pressurize flow control valve 3 of sampling bottle 101 one end, pressurize flow control valve 3 can control the air current of sampling bottle 101 one end and slowly release, and the pressure of sampling bottle 101 one end slowly reduces, and the other end of sampling bottle 101 can slowly get into the natural gas simultaneously this moment, is full of the natural gas in the sampling bottle 101, closes pressurize flow control valve 3. The natural gas enters the sampling bottle 101 at a slow speed all the time, and the pressure environment is controlled to be relatively stable when the natural gas enters the sampling bottle 101, so that the representativeness of natural gas sampling is ensured.
In addition, in the device, because the pressure of the gas in the sampling bottle 101 is established by the natural gas in the natural gas reservoir, the gas at the two ends of the piston 102 of the sampling bottle 101 is homologous, and the natural gas is not easy to be polluted and lose representativeness.
As shown in fig. 1, the natural gas pressure-stabilizing sampling device may further include a pressure reducing valve 6, and the pressure reducing valve 6 is disposed between one end of the sampling bottle 101 and the pressure-maintaining flow rate regulating valve 3.
The pressure reducing valve 6 arranged between one end of the sampling bottle 101 and the pressure maintaining flow regulating valve 3 can play a role in stabilizing the pressure at one end of the sampling bottle 101, after the pressure maintaining flow regulating valve 3 is opened, the gas at one end of the sampling bottle 101 is slowly released, the other end of the sampling bottle 101 continues to be filled with natural gas, the pressure at one end of the sampling bottle 101 is close to the set pressure of the pressure reducing valve 6, and the reading of the pressure gauge 4 is stable again. In the arrangement, the switch of the pressure maintaining flow regulating valve 3 is not required to be controlled manually according to the moving state of the piston 102 in the sampling bottle 101, so that the instability caused by manual work can be reduced, and the pressure stabilizing sampling of natural gas is ensured.
As shown in fig. 1, the natural gas pressure-stabilizing sampling device may further include a sampling flow regulating valve 7, and the other end of the sampling bottle 101 is further communicated with the sampling flow regulating valve 7.
The other end at sample bottle 101 communicates sample flow control valve 7, and in this kind of setting, before opening pressurize stop valve 2, can open the sample stop valve 5 of the sample bottle 101 other end earlier, the natural gas that gets into in the natural gas reservoir in the sample stop valve 5 carries out pressure and establishes, treats that 4 readings of manometer are stable, closes sample stop valve 5. And the pressure maintaining stop valve 2 is opened again, so that one end of the sampling bottle 101 is stabilized to enter natural gas, and the pressure maintaining stop valve 2 is closed after the pressure gauge 4 is stabilized again. And opening the sampling flow regulating valve 7, slowly releasing the natural gas at the other end of the sampling bottle 101, and closing the sampling flow regulating valve 7 until the readings of the pressure gauge 4 are stable and unchanged. At this time, one end of the sampling bottle 101 is filled with natural gas, and the natural gas enters one end of the sampling bottle 101 at a slow speed and with a stable pressure, so that representativeness of the natural gas is guaranteed, and bottle washing work of the sampling bottle 101 is completed. And finally, the sampling stop valve 5 and the pressure maintaining flow regulating valve 3 can be opened again, and the other end of the sampling bottle 101 begins to slowly enter the natural gas. The sampling bottle 101 uses the homologous natural gas to perform pressure stabilization bottle washing before sampling, so that the natural gas can be prevented from being polluted, and the representativeness of the natural gas is further ensured.
Optionally, the natural gas pressure-stabilizing sampling device further includes a pressure-maintaining side gas recovery container 8 and a sampling side gas recovery container 9, the pressure-maintaining side gas recovery container 8 is sequentially communicated with the pressure-maintaining flow control valve 3 and one end of the sampling bottle 101, and the sampling side gas recovery container 9 is sequentially communicated with the flow control valve 7 and the other end of the sampling bottle 101.
The pressure maintaining side gas recovery container 8 can be used as a storage device of natural gas for storing released natural gas, so that the natural gas is prevented from polluting the air, and the safe sampling of the natural gas is ensured. The sampling side gas recovery container 9 can also store released natural gas, so that the safety of natural gas sampling is ensured.
Fig. 2 is a schematic structural diagram of a sampling bottle according to an embodiment of the present disclosure, and as shown in fig. 2, the sampling bottle 101 may include a sampling cylinder 1011, a pressure maintaining cap 1012 and a sampling cap 1013, the pressure maintaining cap 1012 and the sampling cap 1013 are respectively connected to two ends of the sampling cylinder 1011 in a sealing manner, the pressure maintaining cap 1012 is provided with a pressure maintaining through hole 1012a, and the sampling cap 1013 is provided with a sampling through hole 1013 a.
By adopting the arrangement, the sampling bottle 101 is beneficial to realizing the movement of the piston 102 in the sampling cylinder 1011 on the one hand, and on the other hand, the whole sampling bottle 101 can be conveniently disassembled and assembled, and the connection and the disassembly between the sampling bottle 101 and other structures are conveniently realized.
As shown in fig. 2, the piston 102 is disposed in the sampling cylinder 1011, and a seal m is disposed between the piston 102 and the inner wall of the sampling cylinder 1011.
The piston 102 with the structure can better isolate the two ends of the sampling bottle 101, and the risk of natural gas running at the two ends of the sampling bottle 101 is reduced.
The sampling cylinder 1011 may be a cylinder.
Alternatively, in the case that the sampling cylinder 1011 is a cylinder, the pressure maintaining cover 1012 may include a cylinder 1012b and a circular plate 1012c, the cylinder 1012b and the circular plate 1012c are coaxially fixed, the cylinder 1012b is fixed in the sampling cylinder 1011, the side wall of the cylinder 1012b and the inner wall of the sampling cylinder 1011 are sealed by a sealing ring m, and the circular plate 1012c is detachably connected to the sampling cylinder 1011.
In this arrangement, the sealing effect between the cylinder 1012b and the sampling cylinder 1011 is good, and the positioning and installation of the pressure-retaining cover 1012 are also facilitated.
In the case where the piston 102 is coaxially disposed within the sampling cylinder 1011, the pressure holding through-hole 1012a may be coaxially disposed on the pressure holding cap 1012. The coaxial setting of pressurize through-hole 1012a can guarantee the stable inflow and the outflow of natural gas on the gland 1012 for the pressure that the natural gas received mainly comes from the axial of sampling bottle 101, and the direction that the natural gas flows out also is the axial of sampling bottle 101, avoids the natural gas atress unstable.
Alternatively, the sampling vial 101 may be made of stainless steel. The stainless steel has better pressure resistance, and can prolong the service life of the sampling bottle 101.
It should be noted that the structure of the sampling cap 1013 is the same as that of the pressure maintaining cap 1012, and the details of the disclosure are not repeated herein.
With reference to fig. 1 and 2, the natural gas pressure stabilizing sampling device may further include a pressure maintaining pipe 10 and a pressure relief pipe 11, the pressure maintaining through hole 1012a is communicated with one end of the pressure maintaining pipe 10 and one end of the pressure relief pipe 11, the pressure maintaining stop valve 2 is disposed on the pressure relief pipe 10, and the pressure maintaining flow regulating valve 3 is disposed on the pressure relief pipe 11.
The sampling bottle 101 can be more conveniently communicated with the natural gas reservoir and the outside by using the structure.
When the natural gas pressure-stabilizing sampling device includes the pressure-maintaining-side gas recovery container 8, the other end of the pressure-relief pipe 11 communicates with the pressure-maintaining-side gas recovery container 8.
The pressure maintaining pipe 10 and the pressure relief pipe 11 can be connected with the pipeline of the pressure maintaining through hole 1012a through a three-way joint.
Referring to fig. 1 and 2, the sampling stop valve 5 and the sampling through hole 1013a can be communicated with the natural gas reservoir by using a pipeline, which is not described herein.
Fig. 3 is a schematic structural diagram of the natural gas pressure stabilizing sampling device provided by the embodiment of the present disclosure, and as shown in fig. 3, the natural gas pressure stabilizing sampling device may further include a box 12, and the pressure maintaining stop valve 2, the pressure maintaining flow regulating valve 3, the pressure gauge 4 and the sampling stop valve 5 are all disposed in the box 12.
The pressure maintaining stop valve 2, the pressure maintaining flow regulating valve 3, the pressure gauge 4 and the sampling stop valve 5 are all arranged in the box body 12, so that the whole natural gas pressure stabilizing sampling device can be conveniently carried, and the safety of the whole device can be ensured.
Optionally, the natural gas pressure stabilizing and sampling device further comprises at least one of a roller 13 and a handle 14, the roller 13 is arranged on two sides of the box body 12 in a rolling manner, and the handle 14 is fixedly connected with the box body 12.
The rollers 13 arranged on the two sides of the box body 12 can facilitate the movement of the natural gas pressure stabilizing device, and the portability of the natural gas pressure stabilizing device is improved. The handle 14 is fixedly connected to the housing 12. The addition of the handle 14 may further improve the portability of the natural gas pressure stabilizer.
As shown in fig. 3, the natural gas pressure-stabilizing sampling device further includes two sampling bottle quick connectors 15, the two sampling bottle quick connectors 15 are all disposed on the box 12, one sampling bottle quick connector 15 is communicated with one end of the sampling bottle 101 and the pressure-maintaining stop valve 2 through a pipeline, and the other sampling bottle quick connector 15 is communicated with the other end of the sampling bottle 101 and the sampling stop valve 5 through a pipeline.
The sampling bottle quick connector 15 can realize the connection of the pipeline between the sampling bottle 101 or the disconnection of the pipeline without tools, and can control the connection and disconnection between the structure in the box body 12 and the sampling bottle 101 so as to maintain or adjust the parameters of the structure in the box body 12.
Alternatively, the control stem of the holding pressure stop valve 2, the control stem of the holding pressure flow regulating valve 3, and the control stem of the sampling stop valve 5 are collectively provided on the mounting surface 121 of the case 12.
As shown in figure 3, the arrangement can facilitate the adjustment of the pressure maintaining stop valve 2 by the staff according to the indication of the pressure gauge 4.
Optionally, a pressure gauge adjustment lever 16 may also be disposed on the mounting surface 121. The pressure gauge 4 can be adjusted to the desired pressure.
As shown in fig. 3, the case 12 is further provided with a quick coupling 17 for connecting the holding-side gas recovery vessel 8 and the canister of the sampling-side gas recovery vessel 9. For storing gas.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (10)
1. A natural gas pressure stabilizing sampling device is characterized in that the natural gas pressure stabilizing sampling device comprises a sampling container (1), a pressure maintaining stop valve (2), a pressure maintaining flow regulating valve (3), a pressure gauge (4) and a sampling stop valve (5),
sampling container (1) is including sampling bottle (101) and piston (102), piston (102) are followed the axial slidable ground of sampling bottle (101) sets up in sampling bottle (101), piston (102) with sealed the setting between the inner wall of sampling bottle (101), the one end of sampling bottle (101) communicates in proper order pressurize stop valve (2) and natural gas reservoir, the one end intercommunication of sampling bottle (101) pressurize flow control valve (3), manometer (4) set up one of sampling bottle (101) is served, the other end of sampling bottle (101) communicates in proper order sample stop valve (5) and natural gas reservoir.
2. The natural gas pressure-stabilizing sampling device according to claim 1, further comprising a pressure reducing valve (6), wherein the pressure reducing valve (6) is disposed between one end of the sampling bottle (101) and the pressure-maintaining flow regulating valve (3).
3. The natural gas pressure-stabilizing sampling device according to claim 1, further comprising a sampling flow regulating valve (7), wherein the other end of the sampling bottle (101) is communicated with the sampling flow regulating valve (7).
4. The natural gas pressure-stabilizing sampling device according to claim 3, further comprising a pressure-holding-side gas recovery tank (8) and a sampling-side gas recovery tank (9), the pressure-holding-side gas recovery tank (8) being in communication with the pressure-holding flow regulating valve (3) and one end of the sampling bottle (101) in this order, the sampling-side gas recovery tank (9) being in communication with the flow regulating valve (7) and the other end of the sampling bottle (101) in this order.
5. The device for sampling and stabilizing the pressure of natural gas according to any one of claims 1 to 4, wherein the sampling bottle (101) comprises a sampling cylinder (1011), a pressure maintaining cover (1012) and a sampling cover (1013), the pressure maintaining cover (1012) and the sampling cover (1013) are respectively connected to two ends of the sampling cylinder (1011) in a sealing manner, the pressure maintaining cover (1012) is provided with a pressure maintaining through hole (1012a), and the sampling cover (1013) is provided with a sampling through hole (1013 a).
6. The natural gas pressure-stabilizing sampling device according to claim 5, characterized in that the piston (102) is arranged in the sampling cylinder (1011), and a sealing ring (m) is arranged between the piston (102) and the inner wall of the sampling cylinder (1011).
7. The natural gas pressure stabilizing sampling device according to any one of claims 1 to 4, characterized in that the natural gas pressure stabilizing sampling device further comprises a box body (12), and the pressure maintaining stop valve (2), the pressure maintaining flow regulating valve (3), the pressure gauge (4) and the sampling stop valve (5) are all arranged in the box body (12).
8. The natural gas pressure-stabilizing sampling device according to claim 7, further comprising at least one of a roller (13) and a handle (14), wherein the roller (13) is arranged on two sides of the box body (12) in a rolling manner, and the handle (14) is fixedly connected with the box body (12).
9. The natural gas pressure-stabilizing sampling device according to claim 7, further comprising two sampling bottle quick connectors (15), wherein the two sampling bottle quick connectors (15) are both disposed on the box body (12), one sampling bottle quick connector (15) is communicated with one end of the sampling bottle (101) and the pressure-maintaining stop valve (2) through a pipeline, and the other sampling bottle quick connector (15) is communicated with the other end of the sampling bottle (101) and the sampling stop valve (5) through a pipeline.
10. The natural gas pressure-stabilizing sampling device according to claim 7, characterized in that the control valve rod of the pressure-maintaining stop valve (2), the control valve rod of the pressure-maintaining flow regulating valve (3), and the control valve rod of the sampling stop valve (5) are all collectively provided on the mounting surface of the tank (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922278646.7U CN211856049U (en) | 2019-12-17 | 2019-12-17 | Natural gas steady voltage sampling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922278646.7U CN211856049U (en) | 2019-12-17 | 2019-12-17 | Natural gas steady voltage sampling device |
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| CN211856049U true CN211856049U (en) | 2020-11-03 |
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| CN201922278646.7U Active CN211856049U (en) | 2019-12-17 | 2019-12-17 | Natural gas steady voltage sampling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116718438A (en) * | 2023-08-07 | 2023-09-08 | 苏州杜尔气体化工装备有限公司 | Gas quality detection sampling device for natural gas skid-mounted gas station |
-
2019
- 2019-12-17 CN CN201922278646.7U patent/CN211856049U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116718438A (en) * | 2023-08-07 | 2023-09-08 | 苏州杜尔气体化工装备有限公司 | Gas quality detection sampling device for natural gas skid-mounted gas station |
| CN116718438B (en) * | 2023-08-07 | 2023-10-27 | 苏州杜尔气体化工装备有限公司 | Gas quality detection sampling device for natural gas skid-mounted gas station |
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