CN106151882B - A kind of more fluctuating moisture collector and delivery pipe road hydrops and slug control device - Google Patents
A kind of more fluctuating moisture collector and delivery pipe road hydrops and slug control device Download PDFInfo
- Publication number
- CN106151882B CN106151882B CN201610801561.0A CN201610801561A CN106151882B CN 106151882 B CN106151882 B CN 106151882B CN 201610801561 A CN201610801561 A CN 201610801561A CN 106151882 B CN106151882 B CN 106151882B
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- straight length
- hydrops
- valves
- check
- gland
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/005—Pipe-line systems for a two-phase gas-liquid flow
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipe Accessories (AREA)
Abstract
A kind of more fluctuating moisture collector and delivery pipe road hydrops and slug control device, are mainly made up of check-valves, rotational flow generator, straight length, upstream flange and downstream flange.Its hydrops and slug control method are:Upstream biphase gas and liquid flow opens check valve under differential pressure action before and after apparatus of the present invention, by rotational flow generator, circulation is changed into spiral flow in the future, hydrops is taken away into the low-lying place of pipeline using spiral flow strong fluid-carrying capability, the hydrops that the backflow auto-lock function of check-valves can prevent from being pulled away is assembled in lower again.To improve the control effect of hydrops and slug flow, it can use more playscript with stage directions inventions that moisture collector and delivery pipe road is separated into some processing units, carry out Discrete control.The present invention have it is simple in construction, it is easy to operate, it is safe and efficient the advantages of.
Description
Technical field:
The present invention discloses a kind of hydrops and slug control device, particularly a kind of to be used to reduce more fluctuating moisture gathering lines
The device of slug flow in interior hydrops and control pipeline.
Background technology:
During wet air duct trace gather is defeated, with the continuous decline of gathering system operating pressure and temperature, the dew of unstripped gas
Point can constantly rise, so as to cause the precipitation of condensed water;Meanwhile with the progress of gas field development process, side water in stratum and
Bottom land and water is continuous to be plucked out of, and causes liquid in gathering line gradually to increase.Along along the gathering line system of Complex Mountain laying, due to
Action of Gravity Field, the low-lying place that liquid can accumulate in fluctuating pipeline form hydrops.Hydrops amount, which is on the increase, can block gas passage, from
And pipeline upward slope section liquid holdup is significantly increased, the slug flow that hypsography induces is produced, the presence of hydrops and slug flow can draw
Play following problem:
(1) effective conveying sectional area of gas is reduced, causes the reduction of gathering system transfer efficiency;
(2) presence of hydrops causes pipeline area of passage to reduce, and transporting resistance increase, causes the pressure drop of unit length pipeline to increase
Greatly, energy consumption is added;
(3) hydrate can be formed under certain pressure, temperature conditionss, causes ice to block up accident;
(4) landform induction slug flow can cause end of line separator pressure and liquid level big ups and downs, will give normal production
Difficulty is brought, can cause to stop production when serious;
(5) when it is high sulfur-bearing and carbon dioxide sour gas to convey gas, the presence of hydrops also results in pipeline corrosion
Aggravation, increase risk of leakage.
As gas field is persistently exploited, well head Liquid output increases year by year, regular pigging be solve hydrops most effective approach it
One.But using the wiper of routine, in pigging process due to wiper accumulated downstream substantial amounts of liquid, it will in pipeline
End produces very long liquid plug, causes the rapid fluctuation of terminal pressure.Simultaneously as terminal slug catcher limited volume,
When the long liquid in wiper front end enters slug catcher in pigging process, end fluid flow can increased dramatically, more than section
The disposal ability of plug flow trap, cause liquid level rapid increase, cause the risk of slug catcher overflow, even result in downstream
Short time supply interruption, influence the steady production of oil gas field.
Patent of invention (application number:201220475592.9) disclose a kind of spiral flow draining for natural gas extraction and adopt
Device of air, it is made up of air inlet section, contraction section, flat segments and diffuser, by producing spiral flow, that improves natural gas takes liquid energy
Power, reach the purpose of gas well water pumping gas production.But caused spiral flow continues apart from limited, especially in gas-field exploitation later stage, gas
Well pressure reduces, and gas flow diminishes, and spiral flow continues distance and shortened, and can not carry hydrops and pass through pipeline ascent stage, hydrops meeting
The low-lying place of pipeline is back under gravity, so as to can not fundamentally solve the problems, such as hydrops removing and slug flow control.
The content of the invention:
The defects of in order to overcome prior art, the present invention propose a kind of more fluctuating moisture collector and delivery pipe road hydrops and slug control
Device, check-valves and rotational flow generator are integrated, the hydrops in pipeline can be taken away to low-lying place and prevented by band
From hydrops return to low-lying place.The present invention can also significantly reduce slug length simultaneously, reduce slug flow harm.
As shown in figure 1, the present invention relates to fluctuating moisture collector and delivery pipe road hydrops and slug control device more than one kind, mainly include
Check-valves, rotational flow generator, straight length, upstream flange and downstream flange, check-valves and rotational flow generator are installed in straight length
Portion, and check-valves, rotational flow generator, straight length three are located on same axis, rotational flow generator is located at the downstream of check-valves, directly
Pipeline section import and export is respectively arranged with upstream flange and downstream flange.
Described check-valves is mainly by annular water conservancy diversion pedestal, gland, cross supporting frame, guide rod, rubber ring and buffer spring
Composition, annular water conservancy diversion pedestal is ring bodies, and its external diameter is identical with inside diameter of straight pipe section, and the entrance of annular water conservancy diversion pedestal is tapered knot
Structure, export as low wide and up narrow wedge shape;For gland to there is certain thickness disk, the longitudinal section of disk is wedge shape wide at the top and narrow at the bottom,
Circumferentially side is provided with rubber ring, can be fitted close with the lozenges of annular water conservancy diversion pedestal, and gland center is provided with through hole;Ten
The stainless steel bar that word support frame is crossed as cross by two is formed, and two stainless steel bar ends are welded on straight length inwall, its
The plane of composition is vertical with straight length axis, and cross supporting frame center is provided with guide rod, and buffer spring, guide rod are provided with guide rod
Free end be placed in gland central through hole, gland can move reciprocatingly along guide rod.
Described rotational flow generator is mainly made up of swirl vane and central shaft, swirl vane along central collar around arrangement,
And swirl vane outer rim is brought into close contact with straight length inwall, center shaft axis overlaps with the axis of straight length, central shaft upstream end
The center of cross supporting frame is fixed in face.
Compared with prior art, the present invention has the advantages that:
(1) check-valves and rotational flow generator are integrated, effectively controls time of liquid in spiral flow discharge opeing process
Stream;
(2) slug flow of hypsography induction can be eliminated;
(3) present invention can it is horizontal, obliquely or vertically arrange, discharge opeing, operating cost can be completed under the premise of pipeline on-line production
It is low, it is easy to operate.
Brief description of the drawings:
Fig. 1 is schematic structural view of the invention;
Fig. 2 is check-valves axial view of the present invention;
Fig. 3 is discharge opeing process schematic diagram of the present invention;
Fig. 4 is present invention backflow control process schematic diagram;
Fig. 5 is working effect schematic diagram of the present invention.
Embodiment:
As shown in figure 1, the present invention relates to fluctuating moisture collector and delivery pipe road hydrops and slug control device more than one kind, mainly include
Check-valves 1, rotational flow generator 2, straight length 9, upstream flange 10 and downstream flange 11, check-valves 1 and rotational flow generator 2 are installed on
Inside straight length 9, and check-valves 1, rotational flow generator 2, the three of straight length 9 are located on same axis, and rotational flow generator 2 is positioned at only
The downstream of valve 1 is gone back to, the import and export of straight length 9 is respectively arranged with upstream flange 10 and downstream flange 11.
Described check-valves 1 is mainly eased up by annular water conservancy diversion pedestal 3, gland 4, cross supporting frame 5, guide rod 6, rubber ring 7
Rush spring 8 to form, annular water conservancy diversion pedestal 3 is ring bodies, and its external diameter is identical with the internal diameter of straight length 9, the entrance of annular water conservancy diversion pedestal 3
For tapered configuration, export as low wide and up narrow wedge shape;Gland 4 is has certain thickness disk, and the longitudinal section of disk is under upper width
Narrow wedge shape, circumferentially side rubber ring 7 is installed, can be fitted close with the lozenges of annular water conservancy diversion pedestal 3, in gland 4
The heart is provided with through hole;The stainless steel bar that cross supporting frame 5 is crossed as cross by two is formed, and two stainless steel bar ends are welded in directly
On the inwall of pipeline section 9, the plane that it is formed is vertical with the axis of straight length 9, and the center of cross supporting frame 5 is provided with guide rod 6, on guide rod 6
Buffer spring 8 is installed, the free end of guide rod 6 is placed in the central through hole of gland 4, and gland 4 can move reciprocatingly along guide rod 6.
Described rotational flow generator 2 is mainly made up of swirl vane 12 and central shaft 13, and swirl vane 12 is along central shaft 13
Around arrangement, and the outer rim of swirl vane 12 is brought into close contact with the inwall of straight length 9, the axis weight of the axis of central shaft 13 and straight length 9
Close, the upstream face of central shaft 13 is fixed on the center of cross supporting frame 5.
Operation principle of the present invention is described as follows:
The present invention is connected by upstream flange 10 with moisture gathering line, as shown in figure 3, the biphase gas and liquid flow of upstream passes through
When of the invention, gland 4 moves upwards under differential pressure effect along guide rod 6, and biphase gas and liquid flow passes through gland 4 and annular water conservancy diversion pedestal 3
Between annular gap flow to downstream.The effect of buffer spring 8 be prevent from opening in high entrance gas-liquid flow velocity lower cover 4 it is too fast right
Cross supporting frame 5 impacts damage.Because the outer rim of swirl vane 12 and the inwall of straight length 9 are brought into close contact, biphase gas and liquid flow exists
By that will produce centrifugal motion during swirl vane 12, the larger liquid phase of density can be thrown toward wall, and the less gas phase of density exists
Pipeline center is flowed, so as to form spiral flow.Because larger tangential velocity be present in spiral flow, under tangential shearing force,
Its fluid-carrying capability strengthens, so as to which upstream hydrops is constantly carried along into downstream.The present invention the annular entrance channel of water conservancy diversion pedestal 3 be
Gradual shrinkage structure, circulation area reduces when upstream incoming passes through entrance, the increase of biphase gas and liquid flow flow velocity, produces spiral flow ability and increases
By force, liquid distance is taken so as to increase.
If fluctuating pipeline climbing section is longer, or inlet fluid flow rate is smaller, and liquid phase climbs one in the downstream of swirl vane 12
After set a distance, spiral flow fluid-carrying capability weakens, and liquid phase can return to the low-lying place of pipeline under gravity, cause discharge opeing to lose
Effect.The check-valves 1 that the present invention uses can effectively prevent liquid-phase reflux, as shown in figure 4, when flowing back, gland 4 can in deadweight and
It is descending along guide rod 6 under the Action of Gravity Field of withdrawing fluid, the outlet of final closed ring water conservancy diversion pedestal 3, so as to prevent liquid-phase reflux.
Rubber ring 7 on gland 4 plays a part of sealing at this moment, prevents liquid from passing through the seam between gland 4 and annular water conservancy diversion pedestal 3
Gap leaks.After fluid passage closure, ducts upstream pressure is continuously increased, and gland 4 will be pushed open again after reaching critical value, now on
Trip high speed incoming can re-form spiral flow in the case where the present invention acts on, and hydrops is continued to bring downstream pipe into.
As shown in figure 5, it is the working effect schematic diagram of the invention in pipeline.Upstream biphase gas and liquid flow after the present invention,
Change of flow is spiral flow, fluid-carrying capability increase, gradually brings liquid into downstream line, spiral intensity of flow increases with duct length
Add and constantly decay until disappearance, can not finally continue discharge opeing., can be in pipe in order to strengthen the control effect to hydrops and slug flow
More playscript with stage directions inventions are arranged in road, pipeline is divided into several processing units, are produced again by the present invention before spiral flow disappears
Raw spiral flow, continue to complete discharge opeing work.Due to effectively controlling backflow by check-valves 1, at rear, incoming is continuously replenished
Under promotion, the liquid in processing unit is pushed to undulated pipeline top step by step, is finally discharged.
It can be seen that the hydrops in pipeline is taken away into low-lying place on the premise of present invention can be implemented in pipeline on-line production and prevented
The hydrops being brought away from returns to the function at low-lying place, while reduces the length of slug flow liquid plug, makes the defeated process of collection more flat
Surely, and the present invention also have it is simple in construction, it is easy to operate, it is safe and efficient the advantages of, be with a wide range of applications.
Claims (2)
1. a kind of more fluctuating moisture collector and delivery pipe road hydrops and slug control device, it is characterised in that:Mainly include check-valves (1),
Rotational flow generator (2), straight length (9), upstream flange (10) and downstream flange (11), check-valves (1) and rotational flow generator (2) peace
It is internal loaded on straight length (9), and check-valves (1), rotational flow generator (2), straight length (9) three are located on same axis, eddy flow
Generator (2) is located at the downstream of check-valves (1), and straight length (9) import is provided with upstream flange (10), and straight length (9) outlet is set
It is equipped with downstream flange (11);Described check-valves (1) mainly by annular water conservancy diversion pedestal (3), gland (4), cross supporting frame (5),
Guide rod (6), rubber ring (7) and buffer spring (8) composition, annular water conservancy diversion pedestal (3) are ring bodies, its external diameter and straight length (9)
Internal diameter is identical, and the entrance of annular water conservancy diversion pedestal (3) is tapered configuration, is exported as low wide and up narrow wedge shape;Gland (4) is certain to have
The disk of thickness, the longitudinal section of disk is wedge shape wide at the top and narrow at the bottom, and circumferentially side is provided with rubber ring (7), with annular water conservancy diversion
The lozenges of pedestal (3) can be fitted close, and gland (4) center is provided with through hole;Cross supporting frame (5) is crossed as cross by two
Stainless steel bar form, two stainless steel bar ends are welded on straight length (9) inwall, its plane formed and straight length (9)
Axis is vertical, and cross supporting frame (5) center is provided with guide rod (6), and buffer spring (8) is provided with guide rod (6), guide rod (6)
Free end is placed in gland (4) central through hole, and gland (4) can move reciprocatingly along guide rod (6).
2. a kind of more fluctuating moisture collector and delivery pipe road hydrops according to claim 1 and slug control device, it is characterised in that:
Described rotational flow generator (2) is mainly made up of swirl vane (12) and central shaft (13), and swirl vane (12) is along central shaft
(13) around arrangement, and swirl vane (12) outer rim is brought into close contact with straight length (9) inwall, central shaft (13) axis and straight length
(9) axis overlaps, and central shaft (13) upstream face is fixed on the center of cross supporting frame (5).
Priority Applications (1)
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CN201610801561.0A CN106151882B (en) | 2016-09-05 | 2016-09-05 | A kind of more fluctuating moisture collector and delivery pipe road hydrops and slug control device |
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CN201610801561.0A CN106151882B (en) | 2016-09-05 | 2016-09-05 | A kind of more fluctuating moisture collector and delivery pipe road hydrops and slug control device |
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CN106151882A CN106151882A (en) | 2016-11-23 |
CN106151882B true CN106151882B (en) | 2018-03-02 |
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CN201610801561.0A Expired - Fee Related CN106151882B (en) | 2016-09-05 | 2016-09-05 | A kind of more fluctuating moisture collector and delivery pipe road hydrops and slug control device |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107917303B (en) * | 2017-10-31 | 2020-04-28 | 常州大学 | Spiral flow drainage device for ground natural gas conveying pipeline |
CN110726073B (en) * | 2018-07-17 | 2021-05-25 | 中国石化工程建设有限公司 | Slug flow catcher |
CN111744276B (en) * | 2019-03-27 | 2022-02-01 | 中石化广州工程有限公司 | Device and method for removing condensate at low point of fluctuating pipeline |
CN111256036B (en) * | 2020-01-16 | 2021-07-13 | 中石化中原石油工程设计有限公司 | Ground gathering and transportation system for exhausted gas reservoir |
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JP3872602B2 (en) * | 1998-08-10 | 2007-01-24 | カグラインベスト株式会社 | Liquefied gas supply circuit |
CN101745246A (en) * | 2009-10-30 | 2010-06-23 | 文闯 | Ultrasonic gas cyclone condensing and separating device |
CN203269665U (en) * | 2013-04-28 | 2013-11-06 | 玉环县双科环保设备有限公司 | Rotational flow aerator |
CN204371296U (en) * | 2014-11-24 | 2015-06-03 | 中国石油天然气股份有限公司 | Wellhead rotary-separation type gas liquid removal device |
CN205036348U (en) * | 2015-08-31 | 2016-02-17 | 西安奥腾石油工程技术服务有限公司 | Instrument of vortex water pumping gas production in pit |
CN105757066A (en) * | 2016-02-29 | 2016-07-13 | 中国石油大学(华东) | Multifunctional accumulated liquid control valve |
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2016
- 2016-09-05 CN CN201610801561.0A patent/CN106151882B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3872602B2 (en) * | 1998-08-10 | 2007-01-24 | カグラインベスト株式会社 | Liquefied gas supply circuit |
CN101745246A (en) * | 2009-10-30 | 2010-06-23 | 文闯 | Ultrasonic gas cyclone condensing and separating device |
CN203269665U (en) * | 2013-04-28 | 2013-11-06 | 玉环县双科环保设备有限公司 | Rotational flow aerator |
CN204371296U (en) * | 2014-11-24 | 2015-06-03 | 中国石油天然气股份有限公司 | Wellhead rotary-separation type gas liquid removal device |
CN205036348U (en) * | 2015-08-31 | 2016-02-17 | 西安奥腾石油工程技术服务有限公司 | Instrument of vortex water pumping gas production in pit |
CN105757066A (en) * | 2016-02-29 | 2016-07-13 | 中国石油大学(华东) | Multifunctional accumulated liquid control valve |
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Granted publication date: 20180302 Termination date: 20200905 |