CN204313916U - A kind of gas-liquid two-phase separator double liquid level measuring device - Google Patents
A kind of gas-liquid two-phase separator double liquid level measuring device Download PDFInfo
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- CN204313916U CN204313916U CN201420765573.9U CN201420765573U CN204313916U CN 204313916 U CN204313916 U CN 204313916U CN 201420765573 U CN201420765573 U CN 201420765573U CN 204313916 U CN204313916 U CN 204313916U
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- liquid
- gas
- liquid level
- phase separator
- level gauge
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- 239000007788 liquid Substances 0.000 title claims abstract description 120
- 238000000926 separation method Methods 0.000 claims abstract description 33
- 241000521257 Hydrops Species 0.000 claims abstract description 19
- 206010030113 Oedema Diseases 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 23
- 239000011435 rock Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 18
- 238000005259 measurement Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 208000035475 disorder Diseases 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The utility model belongs to rock gas production technical field, specifically provide a kind of gas-liquid two-phase separator double liquid level measuring device, comprise the liquid separatnig tube on separation vessel top and the hydrops cylinder of separation vessel bottom, the air intake opening of described liquid separatnig tube connects magnetic flap level gauge upper end, described magnetic flap level gauge lower end is connected with the bottom of hydrops cylinder, the gas outlet of described liquid separatnig tube is connected differential pressure transmitter through connecting pipe one with high-low pressure equalizing valve group, described connecting pipe one is connected with the low pressure end of high-low pressure equalizing valve group, the described high-pressure side of high-low pressure equalizing valve group is connected by connecting pipe two with the bottom of hydrops cylinder.This utility model can effectively avoid existing single float level meter to affect the problem of rock gas production because the various fault such as silt, burn into distortion occurs falsity water level, guarantees that the automatic liquid-drainage function of gas-liquid two-phase separator is normal.
Description
Technical field
The utility model belongs to rock gas production technical field, is specifically related to a kind of gas-liquid two-phase separator double liquid level measuring device, is mainly used in the level monitoring to airtight separation vessel and falsity water level judgement.
Background technology
In rock gas is produced, it is extremely important and common gas conditioning link that gas-liquid two-phase is separated, at present, the bedroom gas-liquid two-phase separator that gas gathering station generally applies, employing be that single magnetic flap level gauge realizes separation vessel level gauging and long-range liquid level monitoring.
But, the system that this kind of single magnetic flap level gauge realizes separation vessel level gauging often causes automatic liquid-drainage function to lose efficacy because there is falsity water level in actual production, natural gas carrying liquid enters the compression link in downstream, the emergency event process causing compressor to stop, causes no small trouble to the natural gas collecting operation of region dispersion.
Chinese patent CN202748106U discloses one " fluid reservoir oil, the two float level meter of water liquid level magnetostriction ", the gauge outfit of this liquid level gauge measures mouth by Flange joint fluid reservoir, gauge outfit lower end connects float guide rod, on float guide rod Connection Density different, the oil level float that can move freely along guide rod and water-level float; During the work of this liquid level gauge, oil level float and water-level float float in oil-air interface and oil-water interface respectively, and can along with oil and water liquid level change and change, carry out the real-time measurement of two liquid levels, for follow-up oil, water separation data are accurately and reliably provided.This liquid level gauge is the double liquid level measure device of the fluid reservoir being applied to gas gathering station atmospheric pressure state, the liquid level of oil level and water liquid level can be measured simultaneously, what this liquid level gauge used under atmospheric pressure state designs for double liquid levels of oil and water, is different from the single level gauging of the separation vessel mixed liquor be under a few MPa state.
Chinese patent CN201347742Y discloses one " sand prevention device for liquid level meter of oil-gas separator ", form primarily of discharging tube, Shui Bao, gas outlet, guide pipe and anti-sand pocket, the shape of water bag is tubular, discharging tube is fixed on one end of water bag, discharging tube can be communicated with the feed tube of liquid level gauge, the outer wall of water bag is fixed with gas outlet, is fixed with guide pipe at the other end of water bag, in guide pipe, have anti-sand pocket.The method, by installing sand prevention device for liquid level meter, stops silt to enter liquid level gauge, the problem avoiding silt to block father and son occurring falsity water level.This structure proposes improvement due to the falsity water level just caused for silt, can not prevent, can not eliminate falsity water level completely and produce the accident potential brought to rock gas the falsity water level caused as hydrogen sulfide corrosion float.
Utility model content
The purpose of this utility model is to provide the problem that a kind of gas-liquid two-phase separator double liquid level measuring device is produced to avoid existing single float level meter to affect rock gas because the various fault such as silt, burn into distortion occurs falsity water level, guarantees that the automatic liquid-drainage function of gas-liquid two-phase separator is normal.
For this reason, the utility model provides a kind of gas-liquid two-phase separator double liquid level measuring device, comprise the liquid separatnig tube on separation vessel top and the hydrops cylinder of separation vessel bottom, the air intake opening of described liquid separatnig tube connects magnetic flap level gauge upper end, described magnetic flap level gauge lower end is connected with the bottom of hydrops cylinder, the gas outlet of described liquid separatnig tube is connected differential pressure transmitter through connecting pipe one with high-low pressure equalizing valve group, described connecting pipe one is connected with the low pressure end of high-low pressure equalizing valve group, and the described high-pressure side of high-low pressure equalizing valve group is connected by connecting pipe two with the bottom of hydrops cylinder.
The teletransmission numerical value of above-mentioned magnetic flap level gauge and differential pressure transmitter selects same zero reference.
The teletransmission numerical value of above-mentioned magnetic flap level gauge is the separation vessel liquid level millimeter value after converting.
The teletransmission numerical value of above-mentioned differential pressure transmitter is the separation vessel liquid level millimeter value after converting.
Above-mentioned magnetic flap level gauge and pass through Flange joint between liquid separatnig tube and hydrops cylinder.
The model of above-mentioned magnetic flap level gauge is UHZ-59SYF10.0CdcU/I/lb.
The model of above-mentioned differential pressure transmitter is 3051CD2A02A1BB1E5H2.
The beneficial effects of the utility model:
(1) this gas-liquid two-phase separator double liquid level measuring device that the utility model provides selects magnetic flap level gauge and differential pressure transmitter two kinds of liquid level gauges to measure separation vessel liquid level simultaneously, can in time, effectively find when one of them liquid level gauge breaks down and process, another liquid level gauge can be transformed into when a liquid level gauge fault again and guarantee the normal of separation vessel automatic liquid-drainage function, improve the reliability of level gauging result.
(2) this gas-liquid two-phase separator double liquid level measuring device that the utility model provides effectively can avoid the phenomenon causing the upstream device work disorder such as compressor, dehydration sled because separation vessel liquid level monitoring is malfunctioning, decrease the number of times that emergency event occurs, ensure that device security and rock gas are normally produced.
Below with reference to accompanying drawing, the utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model gas-liquid two-phase separator double liquid level measuring device.
Description of reference numerals: 1, liquid separatnig tube; 2, hydrops cylinder; 3, magnetic flap level gauge; 4, connecting pipe one; 5, high-low pressure equalizing valve group; 6, differential pressure transmitter; 7, connecting pipe two.
Embodiment
Embodiment 1:
Use single liquid level gauge to carry out level gauging easily to occur falsity water level and cause separation vessel automatic liquid-drainage function to lose efficacy to overcome existing gas-liquid two-phase separator, affect the problem of the normal production of rock gas, present embodiments provide a kind of gas-liquid two-phase separator double liquid level measuring device as shown in Figure 1, comprise the liquid separatnig tube 1 on separation vessel top and the hydrops cylinder 2 of separation vessel bottom, the air intake opening of described liquid separatnig tube 1 connects magnetic flap level gauge 3 upper end, described magnetic flap level gauge 3 lower end is connected with the bottom of hydrops cylinder 2, the gas outlet of described liquid separatnig tube 1 is connected differential pressure transmitter 6 through connecting pipe 1 with high-low pressure equalizing valve group 5, described connecting pipe 1 is connected with the low pressure end of high-low pressure equalizing valve group 5, the high-pressure side of described high-low pressure equalizing valve group 5 is connected by connecting pipe 27 with the bottom of hydrops cylinder 2.
Consider that the measuring accuracy of differential pressure transmitter 6 is high in this gas-liquid two-phase separator double liquid level measuring device, work reliably relatively stable, magnetic flap level gauge 3 can because medium be dirty or blocking phenomenon easily appears in self structure problem, therefore, select the level value of differential pressure transmitter 6 measurement to be used for controlling the electrical ball valve blowdown of gas-liquid two-phase separator under normal circumstances, magnetic flap level gauge 3 is only used for showing level value; When differential pressure transmitter 6 operation irregularity, be manually switched to magnetic flap level gauge 3 measured value and control, differential pressure transmitter 6 measured value is only as display.
This gas-liquid two-phase separator double liquid level measuring device that the utility model provides selects magnetic flap level gauge and differential pressure transmitter two kinds of liquid level gauges to measure separation vessel liquid level simultaneously, can in time, effectively find when one of them liquid level gauge breaks down and process, another liquid level gauge can be transformed into when a liquid level gauge fault again and guarantee the normal of separation vessel automatic liquid-drainage function, improve the reliability of level gauging result; Meanwhile, effectively prevent the phenomenon causing the upstream device work disorder such as compressor, dehydration sled because separation vessel liquid level monitoring is malfunctioning, decrease the number of times that emergency event occurs, ensure that device security and rock gas are normally produced.
Embodiment 2:
On the basis of embodiment 1, present embodiments provide a kind of gas-liquid two-phase separator double liquid level measuring device, comprise the liquid separatnig tube 1 on separation vessel top and the hydrops cylinder 2 of separation vessel bottom, the air intake opening of described liquid separatnig tube 1 connects magnetic flap level gauge 3 upper end, described magnetic flap level gauge 3 lower end is connected with the bottom of hydrops cylinder 2, the gas outlet of described liquid separatnig tube 1 is connected differential pressure transmitter 6 through connecting pipe 1 with high-low pressure equalizing valve group 5, described connecting pipe 1 is connected with the low pressure end of high-low pressure equalizing valve group 5, the high-pressure side of described high-low pressure equalizing valve group 5 is connected by connecting pipe 27 with the bottom of hydrops cylinder 2.
Wherein, described magnetic flap level gauge 3 and between liquid separatnig tube 1 and hydrops cylinder 2 by Flange joint, the model of described magnetic flap level gauge 3 is UHZ-59SYF10.0CdcU/I/lb, and the model of described differential pressure transmitter 6 is 3051CD2A02A1BB1E5H2.
As shown in Figure 1, the zero-base directrix of magnetic flap level gauge 3 is lower flange central horizontal line, and the zero reference level of differential pressure transmitter 6 is that high-low pressure pressure end installs surface level.And in actual production process, in order to make the same level gauging result of magnetic flap level gauge 3 and differential pressure transmitter 6 long-range display under different measuring principle, the teletransmission numerical value of described magnetic flap level gauge 3 and differential pressure transmitter 6 selects same zero reference; The teletransmission numerical value of described magnetic flap level gauge 3 is the separation vessel liquid level millimeter value after converting; The teletransmission numerical value of described differential pressure transmitter 6 is the separation vessel liquid level millimeter value after converting.
Separation vessel actual liquid level height and the data relationship measured by two kinds of liquid level gauges as follows: set separation vessel actual liquid level height (height from container bottom to liquid level) as h, the on-the-spot liquid level that magnetic flap level gauge 3 is measured is h1.1, teletransmission display liquid level is h1.2, the zero-base directrix of magnetic flap level gauge 3 is h1.3 to the height at the bottom of separator pot, and the range of magnetic flap level gauge 3 is h1.4; The on-the-spot liquid level that differential pressure transmitter 6 is measured is h2.1, and separator bottom is h2.2 to the positive and negative pressure chamber level of differential pressure transmitter 6.
For magnetic flap level gauge 3, h=h1.1-h1.3; For differential pressure transmitter 6, h=h2.1-h2.2, therefore the relation of h1.1 and h2.1: h1.1=h2.1-h2.2+ h1.3.
The teletransmission numerical value of magnetic flap level gauge 3 and differential pressure transmitter 6 is unified by the zero shift of differential pressure transmitter.According to above conversion relation h1.1=h2.1-h2.2+ h1.3, when to record liquid level be zero to magnetic flap level gauge 3, the differential pressure value of differential pressure transmitter 6 is ρ g(h2.2-h1.3); When to record liquid level be h1.4 to magnetic flap level gauge 3, the differential pressure value of differential pressure transmitter 6 is ρ g(h1.4+h2.2-h1.3), therefore need to do negative transfer at zero point to differential pressure transmitter 6, migration amount is ρ g(h2.2-h1.3), measure range and be set to ρ gh1.4, measurement range can be expressed as [-ρ g(h2.2-h1.3), ρ g(h1.4-h2.2+h1.3)].
H2.2 and h1.3 can be obtained by in-site measurement in theory, but in order to avoid the measuring error component that ρ, g and h2.2 and h1.3 that measure introduce, the bound of differential pressure transmitter 6 is recorded by field experiment, namely solve the key to the issue place of system one or two liquid level gauge measured value, the number percent accounting for range by measured value (unit is kPa) converts the level value (unit is mm) that differential pressure transmitter 6 is measured; Consistent for zero point with the benchmark of magnetic flap level gauge 3 by debugging the zero point making remote transmission device measure, the number percent accounting for range by current value (unit is mA) converts the level value (unit is mm) of fluid level transmitter measurement.
Therefore, on unattended station, two liquid level gauges installed like this by separation vessel, and data can calculate the funtcional relationship of two liquid levels by experiment, thus draw the range ability of the differential pressure transporting liquid level gauge that need set, and two liquid level gauge readings can be consistent.
Simultaneously, consider that differential pressure transmitter 6 measuring accuracy is high, work reliably relatively stable, magnetic flap level gauge 3 can because medium be dirty or blocking phenomenon easily appears in self structure problem, so the level value selecting differential pressure transmitter 6 to measure under normal circumstances is used for controlling electrical ball valve blowdown, magnetic flap level gauge 3 is only used for showing level value; When differential pressure transmitter 6 operation irregularity, be manually switched to magnetic flap level gauge 3 measured value and control, the measured value of differential pressure transmitter 6 is only as display.
This gas-liquid two-phase separator double liquid level measuring device that the utility model provides is in production application, single magnetic flap level gauge 3 is all adopted to measure separation vessel liquid level in 4 unmanned gas gathering stations in operation district, within the statistics phase of 1 year, within 2 months, there is the upstream device fault handling event caused by a falsity water level in average single seat gas gathering station, and this operation district applies the separation vessel of this double liquid level measurement amount, then can the falsity water level fault of Timeliness coverage magnetic flap level gauge 3, normal arrangement employee gets rid of liquid level gauge fault, do not cause upstream device fault handling event.
More than exemplifying is only illustrate of the present utility model, does not form the restriction to protection domain of the present utility model, everyly all belongs within protection scope of the present invention with the same or analogous design of the utility model.
Claims (7)
1. a gas-liquid two-phase separator double liquid level measuring device, comprise the liquid separatnig tube (1) on separation vessel top and the hydrops cylinder (2) of separation vessel bottom, it is characterized in that: the air intake opening of described liquid separatnig tube (1) connects magnetic flap level gauge (3) upper end, described magnetic flap level gauge (3) lower end is connected with the bottom of hydrops cylinder (2), the gas outlet of described liquid separatnig tube (1) is connected differential pressure transmitter (6) through connecting pipe one (4) with high-low pressure equalizing valve group (5), described connecting pipe one (4) is connected with the low pressure end of high-low pressure equalizing valve group (5), the high-pressure side of described high-low pressure equalizing valve group (5) is connected by connecting pipe two (7) with the bottom of hydrops cylinder (2).
2. gas-liquid two-phase separator double liquid level measuring device as claimed in claim 1, is characterized in that: the teletransmission numerical value of described magnetic flap level gauge (3) and differential pressure transmitter (6) selects same zero reference.
3. gas-liquid two-phase separator double liquid level measuring device as claimed in claim 2, is characterized in that: the teletransmission numerical value of described magnetic flap level gauge (3) is the separation vessel liquid level millimeter value after converting.
4. gas-liquid two-phase separator double liquid level measuring device as claimed in claim 2, is characterized in that: the teletransmission numerical value of described differential pressure transmitter (6) is the separation vessel liquid level millimeter value after converting.
5. gas-liquid two-phase separator double liquid level measuring device as claimed in claim 1, is characterized in that: described magnetic flap level gauge (3) and pass through Flange joint between liquid separatnig tube (1) and hydrops cylinder (2).
6. gas-liquid two-phase separator double liquid level measuring device as claimed in claim 1, is characterized in that: the model of described magnetic flap level gauge (3) is UHZ-59SYF10.0Cdc U/I/lb.
7. gas-liquid two-phase separator double liquid level measuring device as claimed in claim 1, is characterized in that: the model of described differential pressure transmitter (6) is 3051CD2A02A1BB1E5H2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420765573.9U CN204313916U (en) | 2014-12-09 | 2014-12-09 | A kind of gas-liquid two-phase separator double liquid level measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420765573.9U CN204313916U (en) | 2014-12-09 | 2014-12-09 | A kind of gas-liquid two-phase separator double liquid level measuring device |
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| CN204313916U true CN204313916U (en) | 2015-05-06 |
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| CN201420765573.9U Expired - Fee Related CN204313916U (en) | 2014-12-09 | 2014-12-09 | A kind of gas-liquid two-phase separator double liquid level measuring device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788670A (en) * | 2016-06-01 | 2016-07-20 | 中国核动力研究设计院 | Improved structure of reactor core water compensating box simulator |
| CN107271325A (en) * | 2017-08-10 | 2017-10-20 | 合肥宁垣工程技术有限责任公司 | A kind of double liquid level measurement density devices for being arranged on bottom of towe |
| WO2019070556A1 (en) * | 2017-10-02 | 2019-04-11 | Romanos John L | Systems and methods for management of cryogenic storage vessels |
| CN110081952A (en) * | 2019-05-24 | 2019-08-02 | 宝泰隆新材料股份有限公司 | A kind of coal tar distillation VACUUM TOWER BOTTOM liquid level emasuring device |
-
2014
- 2014-12-09 CN CN201420765573.9U patent/CN204313916U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788670A (en) * | 2016-06-01 | 2016-07-20 | 中国核动力研究设计院 | Improved structure of reactor core water compensating box simulator |
| CN107271325A (en) * | 2017-08-10 | 2017-10-20 | 合肥宁垣工程技术有限责任公司 | A kind of double liquid level measurement density devices for being arranged on bottom of towe |
| WO2019070556A1 (en) * | 2017-10-02 | 2019-04-11 | Romanos John L | Systems and methods for management of cryogenic storage vessels |
| CN110081952A (en) * | 2019-05-24 | 2019-08-02 | 宝泰隆新材料股份有限公司 | A kind of coal tar distillation VACUUM TOWER BOTTOM liquid level emasuring device |
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| 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: 20150506 |
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| CF01 | Termination of patent right due to non-payment of annual fee |