CN213041595U - Automatic online sampling device of natural gas - Google Patents
Automatic online sampling device of natural gas Download PDFInfo
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- CN213041595U CN213041595U CN202022070771.1U CN202022070771U CN213041595U CN 213041595 U CN213041595 U CN 213041595U CN 202022070771 U CN202022070771 U CN 202022070771U CN 213041595 U CN213041595 U CN 213041595U
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Abstract
The utility model discloses an automatic online sampling device of natural gas sets up electric ball valve one, six and electric ball valve five, can realize sample department pressure and the self-balancing of sampler barrel pressure to the lower part space pre-pressurization of sampler barrel, guarantees the high-pressure state sample, avoids pressure reduction to destroy natural gas original state. The two electric needle valves are arranged, water in the lower space of the sampling cylinder is slowly discharged, so that a small pressure difference occurs between the upper space and the lower space of the sampling cylinder, the electric ball valve II and the check valve I are arranged, the upper space of the sampling cylinder is aerated and sampled under the small pressure difference, and the manual pump is not required for pressurization and pressure relief, so that the portable sampling device is convenient to carry. The controller is arranged to collect pressure data of the first pressure gauge and the second pressure gauge in real time, when pressure exceeds the limit, the relevant electric ball valve is automatically turned off, the four electric ball valves are turned on to release pressure, and safety performance of the device is improved. The device has the characteristics of pressure self-balance, no pressure release in the sampling process, no pump sampling, convenience in carrying, controllable temperature and high safety performance.
Description
Technical Field
The utility model belongs to the technical field of the sample, especially, relate to an automatic online sampling device of natural gas.
Background
In the storage and transportation process of natural gas, in order to know the running state of natural gas quality, equipment and pipeline comprehensively, often can carry out the sample analysis to the natural gas in pipeline or the production facility, and the sampling equipment is then the main device of this process. Traditional sampling device sets up the hand pump more, adopts the piston motion in the hand pump mode control sampling tube of advancing and retreating the pump, not only makes whole device become heavy portable not convenient to have increased the cost expense of device moreover. The traditional sampling device can not realize that the whole sampling process keeps higher sampling pressure, and the component state in the natural gas sample can be changed after the pressure is greatly reduced, such as the state of water and hydrate. Meanwhile, the traditional sampling device cannot control the sampling temperature, so that the state of a natural gas sample is easy to change, and the natural gas sampling device is different from natural gas in actual production. The sampling process is in the high pressure state, and the pressure data of each part of unable real-time supervision of traditional manual sampling has the risk of suppressing pressure, can't in time cut off the system, and the security performance is lower.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims at providing an automatic online sampling device of natural gas that pressure self-balancing, sampling process do not release pressure, no pump sample, portable, controllable temperature, security performance are high.
The utility model discloses set up electric ball valve one, six and electric ball valve five, can realize the sample department pressure and follow the sampler barrel pressure self-balancing to the lower part space pre-pressurization of sampler barrel, guarantee the high-pressure state sample, avoid pressure reduction to destroy the natural gas original state. The electric needle valve I and the electric needle valve II are arranged, liquid in the lower space of the sampling cylinder is slowly discharged to enable the upper space and the lower space of the sampling cylinder to have a small pressure difference, the electric ball valve II and the check valve I are arranged, the upper space of the sampling cylinder is inflated and sampled under the small pressure difference, and a manual pump is not needed any more for pressurization and pressure relief, so that the portable sampling device is convenient to carry. The controller is arranged to collect pressure data of the first pressure gauge and the second pressure gauge in real time, when pressure exceeds the limit, the relevant electric ball valve is automatically turned off, the four electric ball valves are turned on to release pressure, and safety performance of the device is improved.
The utility model discloses specific technical scheme as follows:
an automatic online natural gas sampling device comprises a connecting device, a first electric ball valve, a second electric ball valve, a first check valve, a first pressure gauge, a third electric ball valve, a sampling cylinder, a piston, a second pressure gauge, a fourth electric ball valve, a fifth electric ball valve, a sixth electric ball valve, a seventh electric ball valve, a first electric needle valve, a second check valve and a controller; a piston is arranged in the sampling cylinder, and the piston divides the sampling cylinder into an upper space and a lower space; the connecting device is divided into two pipelines, one pipeline is connected with the first electric ball valve, and the other pipeline is connected with the second electric ball valve; the electric ball valve II is connected with the one-way valve I; the first check valve is connected with the top of the sampling cylinder and communicated with the upper space of the sampling cylinder; the first pressure gauge and the third electric ball valve are connected with the top of the sampling cylinder through the same pipeline and are communicated with the upper space of the sampling cylinder; the second pressure gauge and the fourth electric ball valve are connected with the bottom of the sampling cylinder through the same pipeline and communicated with the lower space of the sampling cylinder; the electric ball valve six is connected with the electric ball valve I; the electric ball valve V is connected with the bottom of the sampling cylinder and is communicated with the lower space of the sampling cylinder; the electric ball valve seventh is connected with the electric ball valve fifth; a pipeline between the electric ball valve seven and the electric ball valve five is connected with the electric ball valve six; the electric ball valve is divided into two pipelines, one pipeline is connected with the first electric needle valve, and the other pipeline is connected with the second electric needle valve; and the pipeline where the electric needle valve I and the electric needle valve II are positioned is combined into one pipeline and then is connected with the one-way valve II.
The outside of the sampling tube is provided with electric tracing, and the temperature in the sampling tube can be controlled.
The electric ball valve I, the electric ball valve II, the pressure gauge I, the electric ball valve III, the pressure gauge II, the electric ball valve IV, the electric ball valve V, the electric ball valve VI, the electric ball valve VII, the electric needle valve I and the electric needle valve II are all connected with the controller through data lines.
Compared with the prior art, the invention has the following beneficial effects:
(1) the utility model discloses set up electric ball valve one, six and electric ball valve five, can realize the sample department pressure and follow the sampler barrel pressure self-balancing to the lower part space pre-pressurization of sampler barrel, guarantee the high-pressure state sample, avoid pressure reduction to destroy the natural gas original state.
(2) The electric needle valve I and the electric needle valve II are arranged, liquid in the lower space of the sampling cylinder is slowly discharged to enable the upper space and the lower space of the sampling cylinder to have a small pressure difference, the electric ball valve II and the check valve I are arranged, the upper space of the sampling cylinder is inflated and sampled under the small pressure difference, and a manual pump is not needed any more for pressurization and pressure relief, so that the portable sampling device is convenient to carry.
(3) The controller is arranged to collect pressure data of the first pressure gauge and the second pressure gauge in real time, when pressure exceeds the limit, the relevant electric ball valve is automatically turned off, the four electric ball valves are turned on to release pressure, and safety performance of the device is improved.
(4) The testing device has the characteristics of pressure self-balance, no pressure relief in the sampling process, no pump sampling, convenience in carrying, controllable temperature and high safety performance.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-a connecting device; 2, an electric ball valve I; 3-an electric ball valve II; 4-a one-way valve I; 5-a first pressure gauge; 6-electric ball valve III; 7-a sampling tube; 8-a piston; 9-pressure gauge two; 10-electric ball valve four; 11-electric ball valve five; 12-electric ball valve six; 13-electric ball valve seven; 14-electric needle valve I; 15-electric needle valve II; 16-a one-way valve II; 17-a controller.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of specific embodiments. The following is a more detailed description of the present invention taken in conjunction with specific preferred embodiments, and it is not intended that the present invention be limited to the specific embodiments described herein. For those skilled in the art, without departing from the spirit of the present invention, several simple deductions or substitutions may be made, which should be considered as belonging to the protection scope of the present invention.
As shown in fig. 1, the utility model discloses a connecting device 1, electric ball valve 2, electric ball valve two 3, check valve 4, manometer 5, electric ball valve three 6, sampler barrel 7, piston 8, manometer two 9, electric ball valve four 10, electric ball valve five 11, electric ball valve six 12, electric ball valve seven 13, electric needle valve one 14, electric needle valve two 15, check valve two 16, controller 17. The connecting device 1 is divided into two pipelines, one pipeline is connected with the first electric ball valve 2, and the other pipeline is connected with the second electric ball valve 3. The connection device 1 is used for connecting with an external sampled pipeline or an associated interface of equipment. And the electric ball valve II 3 is connected with the one-way valve I4. Be equipped with piston 8 in the sampling tube 7, piston 8 separates sampling tube 7 for upper portion space and lower part space, and upper portion space is used for filling the natural gas, and lower part space is used for filling water. The first check valve 4 is connected with the top of the sampling cylinder 7 and communicated with the upper space of the sampling cylinder 7, and only allows natural gas to flow from the direction of the second electric ball valve 3 to the direction of the top of the sampling cylinder 7, so that the backflow of fluid is prevented. The first pressure gauge 5 and the third electric ball valve 6 are connected with the top of the sampling cylinder 7 through the same pipeline and communicated with the upper space of the sampling cylinder 7. The first pressure gauge 5 is used for monitoring pressure data of the upper space of the sampling cylinder 7 in real time. And the third electric ball valve 6 is used for being connected with an analysis instrument, transferring the sampled natural gas into the analysis instrument and simultaneously can also be used for emptying the natural gas. The second pressure gauge 9 and the fourth electric ball valve 10 are connected with the bottom of the sampling cylinder 7 through the same pipeline. And the second pressure gauge 9 is used for monitoring the pressure data of the lower space of the sampling cylinder 7 in real time. And the electric ball valve four 10 is used for emergency pressure relief and can be used for discharging water in the lower space of the sampling cylinder 7. And the electric ball valve six 12 is connected with the electric ball valve I2. And the electric ball valve five 11 is connected with the bottom of the sampling cylinder 7. The pipelines where the six electric ball valves 12, the first electric ball valve 2 and the fifth electric ball valve 11 are located can guide natural gas to be communicated with the lower space of the monitoring sampling cylinder 7, so that a pressure self-balancing function is realized. And the electric ball valve seven 13 is connected with the electric ball valve five 11 and is used for controlling the discharge of water in the lower space of the sampling cylinder 7 to promote the piston 8 to descend. And a pipeline between the electric ball valve seven 13 and the electric ball valve five 11 is connected with the electric ball valve six 12. And the electric ball valve seven 13 is divided into two pipelines, one pipeline is connected with the electric needle valve I14, and the other pipeline is connected with the electric needle valve II 15. The first electric needle valve 14 and the second electric needle valve 15 are used for accurately controlling the flow of water discharge. And the pipelines where the first electric needle valve 14 and the second electric needle valve 15 are positioned are combined into one pipeline and then are connected with the second check valve 16. The second one-way valve 16 prevents the fluid from flowing backwards, and ensures that the fluid can only flow from the direction of the electric ball valve seven 13 to the direction of the second one-way valve 16. The outside of the sampling tube 7 is provided with electric tracing, and the temperature in the sampling tube 7 can be controlled. The electric ball valve I2, the electric ball valve II 3, the pressure gauge I5, the electric ball valve III 6, the pressure gauge II 9, the electric ball valve IV 10, the electric ball valve V11, the electric ball valve VI 12, the electric ball valve VII 13, the electric needle valve I14 and the electric needle valve II 15 are all connected with the controller 17 through data lines, and the controller 17 can automatically control the working state of each device and can collect relevant pressure data.
The specific operation process of the utility model is explained as follows:
pressure self-balancing: the operation controller 17 starts automatic sampling by connecting the connection device 1 to the device to be sampled. The piston 8 is at the top of the withdrawal chimney 7. The controller 17 gives an instruction to start heating the sample cylinder 7 to the sampling temperature by the electric tracing outside the sample cylinder 7. And opening the electric ball valve I2, the electric ball valve VI 12 and the electric ball valve V11, enabling the natural gas to flow to the lower space of the sampling cylinder 7 to pressurize the natural gas to the self pressure, and automatically acquiring pressure data by the pressure gauge II 9 and transmitting the data to the controller 17. And the controller 17 analyzes the pressure data transmitted by the second pressure gauge 9, sends out a control instruction after the pressure is stable, and closes the first electric ball valve 2 and the sixth electric ball valve 12.
Automatic sampling: and after the pressure self-balancing is completed, opening the electric ball valve II 3 and the electric ball valve seventh 13. The controller 17 identifies the pressure data transmitted by the first pressure gauge 5 and the second pressure gauge 9, and finely adjusts the first electric needle valve 14 and the second electric needle valve 15 to enable water in the space at the lower part of the sampling cylinder 7 to be slowly discharged outwards, and meanwhile, the pressure measured by the first pressure gauge 5 is slightly higher than that measured by the second pressure gauge 9, the pressure difference between the two is small, and the piston 8 slowly moves downwards. When the piston 8 moves to the bottom of the sampling cylinder 7, namely no water is discharged outwards, the electric ball valve II 3 and the electric ball valve seventh 13 are closed, and sampling is finished.
Automatic overpressure cutoff: when the pressure measured by the first pressure gauge 5 and the second pressure gauge 9 exceeds the set safety pressure, the controller 7 automatically sends out a control instruction, the second electric ball valve 3, the fifth electric ball valve 11 and the seventh electric ball valve 13 are closed, and the fourth electric ball valve 10 is opened to release the pressure, so that the safety of the device is improved.
To sum up, the device sets up electric ball valve one, electric ball valve six and electric ball valve five, can realize the sample department pressure and the self-balancing of sampler barrel pressure to the lower part space pre-pressurization of sampler barrel, guarantees the high pressure state sample, avoids pressure reduction to destroy natural gas original state. The electric needle valve I and the electric needle valve II are arranged, liquid in the lower space of the sampling cylinder is slowly discharged to enable the upper space and the lower space of the sampling cylinder to have a small pressure difference, the electric ball valve II and the check valve I are arranged, the upper space of the sampling cylinder is inflated and sampled under the small pressure difference, and a manual pump is not needed any more for pressurization and pressure relief, so that the portable sampling device is convenient to carry. The controller is arranged to collect pressure data of the first pressure gauge and the second pressure gauge in real time, when pressure exceeds the limit, the relevant electric ball valve is automatically turned off, the four electric ball valves are turned on to release pressure, and safety performance of the device is improved. The device has the characteristics of pressure self-balance, no pressure release in the sampling process, no pump sampling, convenience in carrying, controllable temperature and high safety performance.
Claims (3)
1. An automatic online natural gas sampling device is characterized by comprising a connecting device, a first electric ball valve, a second electric ball valve, a first check valve, a first pressure gauge, a third electric ball valve, a sampling cylinder, a piston, a second pressure gauge, a fourth electric ball valve, a fifth electric ball valve, a sixth electric ball valve, a seventh electric ball valve, a first electric needle valve, a second check valve and a controller; a piston is arranged in the sampling cylinder, and the piston divides the sampling cylinder into an upper space and a lower space; the connecting device is divided into two pipelines, one pipeline is connected with the first electric ball valve, and the other pipeline is connected with the second electric ball valve; the electric ball valve II is connected with the one-way valve I; the first check valve is connected with the top of the sampling cylinder and communicated with the upper space of the sampling cylinder; the first pressure gauge and the third electric ball valve are connected with the top of the sampling cylinder through the same pipeline and are communicated with the upper space of the sampling cylinder; the second pressure gauge and the fourth electric ball valve are connected with the bottom of the sampling cylinder through the same pipeline and communicated with the lower space of the sampling cylinder; the electric ball valve six is connected with the electric ball valve I; the electric ball valve V is connected with the bottom of the sampling cylinder and is communicated with the lower space of the sampling cylinder; the electric ball valve seventh is connected with the electric ball valve fifth; a pipeline between the electric ball valve seven and the electric ball valve five is connected with the electric ball valve six; the electric ball valve is divided into two pipelines, one pipeline is connected with the first electric needle valve, and the other pipeline is connected with the second electric needle valve; and the pipeline where the electric needle valve I and the electric needle valve II are positioned is combined into one pipeline and then is connected with the one-way valve II.
2. The automatic on-line natural gas sampling device of claim 1, wherein: the outside of the sampling tube is provided with electric tracing, and the temperature in the sampling tube can be controlled.
3. The automatic on-line natural gas sampling device of claim 1, wherein: the electric ball valve I, the electric ball valve II, the pressure gauge I, the electric ball valve III, the pressure gauge II, the electric ball valve IV, the electric ball valve V, the electric ball valve VI, the electric ball valve VII, the electric needle valve I and the electric needle valve II are all connected with the controller through data lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022070771.1U CN213041595U (en) | 2020-09-19 | 2020-09-19 | Automatic online sampling device of natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022070771.1U CN213041595U (en) | 2020-09-19 | 2020-09-19 | Automatic online sampling device of natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213041595U true CN213041595U (en) | 2021-04-23 |
Family
ID=75535100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022070771.1U Expired - Fee Related CN213041595U (en) | 2020-09-19 | 2020-09-19 | Automatic online sampling device of natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213041595U (en) |
-
2020
- 2020-09-19 CN CN202022070771.1U patent/CN213041595U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210423 Termination date: 20210919 |