CN204411779U - Control system of gas-liquid separation device - Google Patents
Control system of gas-liquid separation device Download PDFInfo
- Publication number
- CN204411779U CN204411779U CN201420865709.3U CN201420865709U CN204411779U CN 204411779 U CN204411779 U CN 204411779U CN 201420865709 U CN201420865709 U CN 201420865709U CN 204411779 U CN204411779 U CN 204411779U
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- gas
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- magnetic valve
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- liquid separator
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- 239000007788 liquid Substances 0.000 title claims abstract description 158
- 238000000926 separation method Methods 0.000 title claims abstract description 21
- 239000007789 gas Substances 0.000 claims description 76
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 18
- 239000012530 fluid Substances 0.000 description 15
- 239000003345 natural gas Substances 0.000 description 9
- 238000005406 washing Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000008398 formation water Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000003467 diminishing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002343 natural gas well Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Landscapes
- Degasification And Air Bubble Elimination (AREA)
Abstract
The utility model provides a control system of a gas-liquid separation device, which comprises a vertical gas-liquid separator, wherein an outlet at the upper end of the vertical gas-liquid separator is connected with a third electromagnetic valve through a pipeline, and a gas flowmeter and a gas pressure gauge are sequentially arranged between the third electromagnetic valve and the vertical gas-liquid separator; the lower outlet of the vertical gas-liquid separator is connected with a first electromagnetic valve through a pipeline; the vertical gas-liquid separator is provided with a liquid level meter for detecting liquid level, detected signals are transmitted to the control element, and the control element controls the opening and closing of the first electromagnetic valve through the detected signals. The utility model discloses gaseous clearance reaches more than 98%, and bearing strength reaches 35MPa, and exit pressure is less than or equal to 2 MPa. Through control, the liquid level in the separation tank floats up and down in a safety range, a water cushion is always arranged, the gas flow does not go down, the liquid flow does not go up, and the purpose of gas-liquid separation is achieved.
Description
Technical field
The utility model belongs to oil gas field sewage disposal, ground test, gas testing field of operation, particularly a kind of control system of gas-liquid separation device.
Background technology
Open flow discharge opeing and test phase after natural gas well measures to reform, natural gas mixes fracturing outlet liquid and formation water etc. and in well, sprays well head together, be discharged in clean-up pit by pipeline, liquid outlet quantity carries out natural gas fired after reducing, not only erosion clean-up pit, and a large amount of natural gas is disposed in air and slatterns.To carry out fracturing outlet liquid recycling or natural gas Collection utilization, the high-pressure gas-liquid mixture ejected must be returned to well head be separated by a kind of device of utility model.
Utility model content
Mix fracturing outlet liquid and formation water etc. in well, spray to overcome natural gas the control system that waste the utility model that well head causes provides a kind of gas-liquid separation device together, fracturing outlet liquid recycling or natural gas Collection utilization can be carried out, control system makes liquid level in knockout drum fluctuate in safe range, all the time have " water cushion ", do not make down washing, do not make liquid stream is altered, reach the object of gas-liquid separation yet.
The technical solution of the utility model is:
A control system for gas-liquid separation device, comprises vertical gas-liquid separator, and described vertical gas-liquid separator upper end outlet is connected with the 3rd magnetic valve by pipeline, and the 3rd is provided with gas flowmeter between magnetic valve and vertical gas-liquid separator;
The lower part outlet of described vertical gas-liquid separator is connected with the first magnetic valve by pipeline;
Described vertical gas-liquid separator is provided with the liquid level gauge detecting liquid level, also comprises control element, control element receives the signal that liquid level gauge detects, controls opening and closing of the first magnetic valve after analyzing and processing; The signal that control element receiver gases flowmeter sends also carries out analyzing and processing, controls opening with closed of the 3rd magnetic valve.
Control element is formed by level sensing control module and the set of gas flow-control module, and described level sensing control module one end is connected with liquid level gauge, and the other end is connected with the first magnetic valve; Gas flow control module one end is connected with gas flowmeter, and the other end is connected with the 3rd magnetic valve.
Described control element also comprises gas pressure control module, pipeline between described gas flowmeter and vertical gas-liquid separator is also provided with gas gauge, gas gauge is connected with gas pressure control module, and gas pressure control module is also connected with the 3rd magnetic valve.
The lower part outlet of described vertical gas-liquid separator is also connected with the second magnetic valve by pipeline, and described first magnetic valve and the second magnetic valve are connected in parallel, and control element controls the opening and closing of the second magnetic valve.
Technique effect of the present utility model is:
High-pressure gas-liquid separator control system described in the utility model comprises liquid level gauge, control element magnetic valve, gas gauge, gas flowmeter, and control element is connected with liquid level gauge, to control liquid flow control valve; Control element is connected with gas flowmeter with gas gauge, to control gas flow control valve simultaneously.By controlling, liquid level in vertical gas-liquid separator being fluctuated in safe range, has all the time " water cushion ", do not make down washing, also not making liquid stream is altered, reach the object of gas-liquid separation.
The utility model can solve an isolation technics difficult problem for high-pressure gas-liquid mixture, and when can realize work, gas line no liquid is returned out, and tapping line bubble-free is returned out, and gas clearance reaches more than 98%, and bearing strength reaches 35MPa, outlet pressure≤2MPa.
Be described in detail below with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the control system of gas-liquid separation device.
In figure, Reference numeral is: 1, vertical gas-liquid separator; 2, gas gauge; 3, gas flowmeter; 4, liquid level gauge; 5, control element; 6, the first magnetic valve; 7, the second magnetic valve; 8, the 3rd magnetic valve.
Detailed description of the invention
Embodiment 1:
Mix fracturing outlet liquid and formation water etc. in well, spray to overcome natural gas the waste that well head causes together, the utility model provides the control system of a kind of gas-liquid separation device as shown in Figure 1, fracturing outlet liquid recycling or natural gas Collection utilization can be carried out, control system makes liquid level in knockout drum fluctuate in safe range, all the time have " water cushion ", do not make down washing, also do not make liquid stream is altered, reach the object of gas-liquid separation.
A control system for gas-liquid separation device, comprises vertical gas-liquid separator 1, and described vertical gas-liquid separator 1 upper end outlet is connected with between the 3rd magnetic valve the 8, three magnetic valve 8 and vertical gas-liquid separator 1 by pipeline and is provided with gas flowmeter 3;
The lower part outlet of described vertical gas-liquid separator 1 is connected with the first magnetic valve 6 by pipeline;
Described vertical gas-liquid separator 1 is provided with the liquid level gauge 4 detecting liquid level, also comprise control element 5, control element 5 receives the signal that liquid level gauge 4 detects, controls opening and closing of the first magnetic valve 6 after analyzing and processing; The signal that control element 5 receiver gases flowmeter 3 sends also carries out analyzing and processing, controls opening with closed of the 3rd magnetic valve 8.
Vertical gas-liquid separator 1 is provided with the liquid level gauge 4 detecting liquid level, the Signal transmissions detected is to control element 5, and control element 5 controls opening of the first magnetic valve 6 by the signal detected and closes; The signal that control element 5 receiving body flowmeter 3 and gas gauge 2 send also carries out analyzing and processing, controls opening with closed of the 3rd magnetic valve 8.
The level sensing control module adopted in the present embodiment is the FU-95S of Ku Da Science and Technology Ltd. of Shenzhen, gas flow control module is the model of HORIBA group company is SEC-N100, the UR-Z700 of gas pressure control module model HORIBA group company.
Control element 5 is formed by level sensing control module and the set of gas flow-control module, and described level sensing control module one end is connected with liquid level gauge 4, and the other end is connected with the first magnetic valve 6; Gas flow control module one end is connected with gas flowmeter 3, and the other end is connected with the 3rd magnetic valve 8.
Described control element 5 also comprises gas pressure control module, pipeline between described gas flowmeter 3 and vertical gas-liquid separator 1 is also provided with gas gauge 2, gas gauge 2 is connected with gas pressure control module, and gas pressure control module is also connected with the 3rd magnetic valve 8.
Gas gauge 2, gas flowmeter 3 send signal to control element 5, and control element 5, by after Data Management Analysis, sends instruction to No. three magnetic valve 8, and result is presented on control element 5.
Liquid level gauge 4 detects the liquid level in vertical gas-liquid separator 1, by Signal transmissions to control element 5, when liquid level minimum close to A point time, open the valve of control the 3rd magnetic valve 8, close the valve that the first magnetic valve 6 and the second magnetic valve 7 are arranged, ensure that vertical gas-liquid separator has " water cushion "; When liquid level the highest close to C point time, the valve of the 3rd magnetic valve 8 turns down to anticlockwise, or the valve passage of opening on the second magnetic valve 7 in parallel, the valve simultaneously the first magnetic valve 6 and the second magnetic valve 7 arranged is opened greatly to right rotation, even standard-sized sheet, liquid level is declined, if liquid level continues to rise, then No. three magnetic valve 8 thus force liquid level to decline.
Normally there are liquid, sand, there is huge discharge gas situation: now gas, liquid, solid three-phase flow enters cyclonic separation, gas rises and enters gas pipeline, according to gas flowmeter 3 survey the requirement of throughput and wellhead back pressure, regulate the valve in gas circuit to control wellhead back pressure by control element 5 motorized motions the 3rd magnetic valve 8.
Normally there are liquid, sand, have huge discharge gas situation: liquid-solid two-phase enters vertical gas-liquid separator bottom due to centrifugal force and gravity.Liquid level gauge 4 monitoring liquid liquid level, when liquid level reaches A position, by the valve that control element 5 drives magnetic valve to open fluid path is arranged, keep liquid level fluctuate at A line: liquid level upwards time valve to right rotation, open " greatly " a bit, when liquid level is downward, 3rd magnetic valve 8 closes to anticlockwise, closes " little " a bit, remains in tank and have " water cushion ", isolation upper gas, the fluid path under not making it scurry into it.Now, the increase of tolerance, the disposal ability of vertical gas-liquid separator is higher than sign treating capacity.
Tolerance is constant or increase and liquid measure also increases situation: when liquid level reaches B point, open in advance all the first magnetic valve 6 that fluid path is arranged, liquid level is returned and continues rising.
Tolerance reduces, until be all liquid case without gas: this device gas circuit is monitored by gas flowmeter 3 and gas gauge 2, the pressure of gas circuit depends primarily on the back pressure to well head, when tolerance reduces, 3rd magnetic valve 8 is fastened to keep back pressure, and to when being all liquid, air pressure is also zero, now gas circuit can be closed, and does not affect fluid loop.When being all liquid, liquid is heavy collection by eddy flow, and when liquid level reaches A, fluid path valve is opened, and regulates situation as above.
The situation that liquid measure slowly diminishes: little or when diminishing in liquid measure, gas circuit is without impact, and it only controls by the impact of wellhead back pressure.When starting working, liquid measure is lower than B line, and the 3rd magnetic valve 8 is not opened, and in the course of work, liquid measure is lower than B line, and the 3rd magnetic valve 8 closes " little ", forces liquid level to be gone up, if liquid level can not rise, valve just cuts out, and just opens again until liquid level rises B line.The situation that liquid measure diminishes suddenly time the most dangerous is: import liquid measure is suddenly by 2 sides/minute drop to zero, and now the 3rd magnetic valve 8 is in full-gear.Now the 3rd magnetic valve 8 is caused to turn down because liquid level declines, when liquid level drops to a certain ad-hoc location A, control element 5 makes the first magnetic valve 6 open larger, make the pressure drop of liquid level, at this moment the first magnetic valve 6 continues descending, fluid path resistance increases, and liquid level decrease speed slows down, and is enough to make the first magnetic valve 6 of fluid path thoroughly close and leave in fluid path " water cushion ".
Gas through the 3rd magnetic valve 8 enters gas transmission line, and in the first magnetic valve 6, second magnetic valve 7, isolated liquid enters low pressure and further processes.
By controlling, liquid level in knockout drum being fluctuated in safe range, has all the time " water cushion ", do not make down washing, also not making liquid stream is altered, reach the object of gas-liquid separation.
Embodiment 2:
On basis based on embodiment 1, the lower part outlet of described vertical gas-liquid separator 1 is also connected with the second magnetic valve 7 by pipeline, and described first magnetic valve 6 and the second magnetic valve 7 are connected in parallel, and control element 5 controls the opening and closing of the second magnetic valve 7.
In tolerance constant or increase and liquid measure also increases situation: when reaching B point when liquid level, all open the valve of fluid path in advance, if the first magnetic valve 6 standard-sized sheet still can not make liquid level return and continue to rise, then open service valve path in parallel, the second magnetic valve 7 can be adopted to regulate.If under extreme case, two valves are opened, and liquid level still continues to rise to C point, and now, controller commander gas circuit performs valve and turns down until close the 3rd magnetic valve 8, and adjusting air valve is until be tending towards closing.
Tolerance reduces, until be all liquid case without gas: this device gas circuit is monitored by gas flowmeter 3 and gas gauge 2, the pressure of gas circuit depends primarily on the back pressure to well head, when tolerance reduces, gas circuit valve is fastened to keep back pressure, and to when being all liquid, air pressure is also zero, now gas circuit can be closed, and does not affect fluid loop.When being all liquid, liquid is heavy collection by eddy flow, and when liquid level reaches A, fluid path valve is opened, and regulates situation as above.Another also can on access to plant mouth a pipeline in parallel, when being all liquid, walk this pipeline.
The situation that liquid measure (slowly) diminishes: little or when diminishing in liquid measure, gas circuit is without impact, and it only controls by the impact of wellhead back pressure.When starting working, liquid measure is lower than B line, and valve is not opened, and in the course of work, liquid measure is lower than B line, and changeover valve closes " little ", forces liquid level to be gone up, if liquid level can not rise, valve just cuts out, and just opens again until liquid level rises B line.The situation that liquid measure diminishes suddenly time the most dangerous is: import liquid measure is suddenly by 2 sides/minute drop to zero, and now valve is in full-gear.Now valve is caused to turn down because liquid level declines, when liquid level drops to a certain ad-hoc location A, it is larger that control element 5 makes the valve of gas circuit open, make the pressure drop of liquid level, at this moment the valve of fluid path continues descending, fluid path resistance increases, and liquid level decrease speed slows down, and is enough to make the valve of fluid path thoroughly close and leave in fluid path " water cushion ".
Fracturing outlet liquid recycling or natural gas Collection utilization can be carried out, by controlling, to the left and right adjusting of valve, what allow valve open varies in size, liquid level in knockout drum is fluctuated in safe range, has all the time " water cushion ", do not make down washing, do not make liquid stream is altered, reach the object of gas-liquid separation yet.
The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (4)
1. the control system of a gas-liquid separation device, it is characterized in that: comprise vertical gas-liquid separator (1), described vertical gas-liquid separator (1) upper end outlet is connected with the 3rd magnetic valve (8) by pipeline, is provided with gas flowmeter (3) between the 3rd magnetic valve (8) and vertical gas-liquid separator (1);
The lower part outlet of described vertical gas-liquid separator (1) is connected with the first magnetic valve (6) by pipeline;
Described vertical gas-liquid separator (1) is provided with the liquid level gauge (4) detecting liquid level, also comprises control element (5), control element (5) receives the signal that liquid level gauge (4) detects, controls opening and closing of the first magnetic valve (6) after analyzing and processing; The signal that control element (5) receiver gases flowmeter (3) sends also carries out analyzing and processing, controls opening with closed of the 3rd magnetic valve (8).
2. the control system of a kind of gas-liquid separation device according to claim 1, it is characterized in that: control element (5) is formed by level sensing control module and the set of gas flow-control module, described level sensing control module one end is connected with liquid level gauge (4), and the other end is connected with the first magnetic valve (6); Gas flow control module one end is connected with gas flowmeter (3), and the other end is connected with the 3rd magnetic valve (8).
3. the control system of a kind of gas-liquid separation device according to claim 2, it is characterized in that: described control element (5) also comprises gas pressure control module, pipeline between described gas flowmeter (3) and vertical gas-liquid separator (1) is also provided with gas gauge (2), gas gauge (2) is connected with gas pressure control module, and gas pressure control module is also connected with the 3rd magnetic valve (8).
4. the control system of a kind of gas-liquid separation device according to claim 1, it is characterized in that: the lower part outlet of described vertical gas-liquid separator (1) is also connected with the second magnetic valve (7) by pipeline, described first magnetic valve (6) and the second magnetic valve (7) are connected in parallel, and control element (5) controls the opening and closing of the second magnetic valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865709.3U CN204411779U (en) | 2014-12-31 | 2014-12-31 | Control system of gas-liquid separation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865709.3U CN204411779U (en) | 2014-12-31 | 2014-12-31 | Control system of gas-liquid separation device |
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| Publication Number | Publication Date |
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| CN204411779U true CN204411779U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420865709.3U Expired - Fee Related CN204411779U (en) | 2014-12-31 | 2014-12-31 | Control system of gas-liquid separation device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104524817A (en) * | 2014-12-31 | 2015-04-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Control system of gas-liquid separation device |
| CN105903581A (en) * | 2016-05-31 | 2016-08-31 | 武汉工程大学 | Gas-liquid-solid three-phase cyclone separation testing system and method |
| CN106053726A (en) * | 2016-05-26 | 2016-10-26 | 天邦膜技术国家工程研究中心有限责任公司 | Portable gas-water-ratio tester for water-soluble helium |
-
2014
- 2014-12-31 CN CN201420865709.3U patent/CN204411779U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104524817A (en) * | 2014-12-31 | 2015-04-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Control system of gas-liquid separation device |
| CN104524817B (en) * | 2014-12-31 | 2016-06-01 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Control system of gas-liquid separation device |
| CN106053726A (en) * | 2016-05-26 | 2016-10-26 | 天邦膜技术国家工程研究中心有限责任公司 | Portable gas-water-ratio tester for water-soluble helium |
| CN105903581A (en) * | 2016-05-31 | 2016-08-31 | 武汉工程大学 | Gas-liquid-solid three-phase cyclone separation testing system and method |
| CN105903581B (en) * | 2016-05-31 | 2018-05-01 | 武汉工程大学 | A kind of gas-liquid-solid three-phase cyclonic separation test system and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20211231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |