CN107917303A - A kind of spiral flow drainage arrangement for ground natural-gas transfer pipeline - Google Patents
A kind of spiral flow drainage arrangement for ground natural-gas transfer pipeline Download PDFInfo
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- CN107917303A CN107917303A CN201711043910.8A CN201711043910A CN107917303A CN 107917303 A CN107917303 A CN 107917303A CN 201711043910 A CN201711043910 A CN 201711043910A CN 107917303 A CN107917303 A CN 107917303A
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- hydrops
- pipeline
- flow
- check valve
- spiral
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
Abstract
The invention discloses a kind of spiral flow drainage arrangement for ground natural-gas transfer pipeline, it is related to industrial gas oil field.Including hydrops starter, spiral generating means, dropproducing devices and hydrops cut-off equipment.The present invention uses hydrops starter, and flow velocity is improved by way of helical flow generating device is combined reducer pipe increases impact force and spiral intensity of flow.Make gas shock pipeline low-lying or hydrops is rolled and carried by the hydrops of corner, joint spiral flow and impact force, effectively remove the hydrops in pipeline.
Description
Technical field
The present invention relates to industrial gas oil field, is specifically a kind of spiral flow for actual natural-gas transfer pipeline
Drainage arrangement.
Background technology
In today of world energy sources growing tension, have the characteristics that the high natural gas of cleaning, safety, calorific value obtains various countries green grass or young crops
Look at.At present, pipeline is the major way of natural gas transportation, but during pipeline natural gas, due to tube wall
With the heat exchange of surrounding environment, condensed liquid be able to will likely separate out, meanwhile, with the progress of gas-field exploitation, gas field will water outlet so that
Cause to produce hydrops in pipeline.The generation of pipeline hydrops can cause following problem：1. fluid accumulation at the low spot of pipeline, reduces
Effective conveying sectional area of gas, causes the defeated efficiency of pipe to reduce；2. pipeline area of passage reduces, transporting resistance increase, causes
The pressure drop of unit length pipeline increases, and adds power consumption；3. hydrate can be formed under the conditions of certain temperature, ice is caused to block up thing
Therefore；4. due to the presence of hydrops, the end of undulated pipeline can also form slug flow, when liquid cock body product is more than downsteam processing facilities
During capacity, difficulty is brought to normal production, can cause to stop production when serious.The generation of slug flow can also cause larger in pipeline
Pressure and flowed fluctuation, cause shock and vibration to pipeline, cause pipeline failure.5. the generation of hydrops also results in pipeline corrosion
Aggravation, reduces the service life of pipeline.The gas of especially high sulfur-bearing and carbon dioxide, the presence of hydrops can accelerate the electricity of pipeline
Chemical attack, easily causes conduit wiring piercing, and the normal operation to pipeline brings greatly dangerous (Liu Yong pipeline hydrops vibration monitorings
Technology experiment research [D] China Petroleum Univ. (East-China), 2010).Therefore, highly effective and safe is carried out for the pipeline hydrops of appearance
Removing, and do not influence actual natural gas transportation, the energy security for ensureing China has great importance.
At present, for the gas transmission line of generation hydrops, pigging operation is carried out according to Parameters variation, but existing wiper is general
Store-through is ineffective in removing hydrops, and the failures such as wiper blocking easily occur for a large amount of hydrops pipelines, greatly influences natural
The normal operation in letter shoot road.Patent (application number：201320167273.6) in, for gas transmission line hydrops present situation and at present
Foam drainage gas recovery technique, proposes that producing the pressure difference promotion that is used as power using motive fluid makes wiper push ahead in the duct.
Nozzle is set in wiper front end, by the swirling flow of gas injection, realizes the atomization of wiper front end fluid and secondary blistering, is dropped
Low gas-liquid mixture density, reduces resistance loss, to improve pigging efficiency, reduces wiper card resistance risk.But this device
It is defective：1. equipment is complicated, operation and maintenance cost are higher；2. this device is also in appendix by the way of similar wiper
Operation in road, when run into pipeline hydrops it is larger when, inevitably there is blocking phenomenon.Therefore, it is badly in need of finding a kind of product at present
Liquid elimination effect is good, and blocking will not occur, and the hydrops for not influencing actual gas pipeline operation carries method.
The present invention takes into full account efficient rolling action of the spiral flow to hydrops, is not influencing actual gas transmission line operation and not
On the premise of generation pipeline card blocks up, pipeline hydrops is efficiently excluded, ensures the safe and efficient transport of natural gas line.
The content of the invention
The purpose of the present invention is for during currently with pipeline natural gas, due to tube wall and surrounding environment
Heat exchange, condensed liquid be able to will likely separate out, meanwhile, with the progress of gas-field exploitation, gas field will water outlet, so as to cause natural gas defeated
Send the low-lying or fluctuating section in pipeline to produce hydrops, influence the air input efficiency of natural gas, and the shadows such as corrosion can be caused to pipeline
The safety problem of speaking pipe road safe transport, and a kind of new pipeline invented takes liquid technology.Technical problems to be solved are pins
Often occur pipeline hydrops to the low-lying or fluctuating section at present in the gas collector and delivery pipe of ground, and have no at present efficient
Hydrops carries method, so that after taking into full account that pipelines take liquid method, there is provided there is one kind high-efficiency pipeline to take liquid efficiency, no
Pipeline card occurs to block up and do not influence the novel pipeline spiral flow drainage arrangement of the actual motion of natural-gas transfer pipeline.
Generally speaking, natural-gas transfer pipeline hydrops carrying device of the invention, solves following a few hang-ups：1. use
Hydrops starter, flow velocity is improved by way of helical flow generating device is combined reducer pipe increases impact force and spiral flow
Intensity.Make gas shock pipeline low-lying or hydrops is rolled and carried, had by the hydrops of corner, joint spiral flow and impact force
Effect removes the hydrops in pipeline；2. dropproducing devices are used, impingement baffles and broken fluid apertures after liquid group is accelerated by baffle
It is scattered, and it is easily portable to form droplet；3. using spiral generating means tilting pipeline section, spiral flow is generated, carries quilt
Scattered droplet.More efficiently remove the hydrops in pipeline；4. using hydrops cut-off equipment, stop drop reflux, and
Arrange that micropore prevents that cut drop constantly assembles in angle, ensures the carrying of drop on flow-stopping sheet；It is 5. certain in pipeline
Spiral generating means and hydrops cut-off equipment are placed apart from upper, spiral flow is maintained, both can guarantee that the air input efficiency of natural gas line,
The hydrops in pipeline can be effectively removed again；6. overall investment cost and operating cost are relatively low.
A kind of spiral flow drainage arrangement for ground natural-gas transfer pipeline, including hydrops starter, spiral generation
Device, dropproducing devices and hydrops cut-off equipment, the hydrops starter, mainly including check valve, a liquid device by method
Orchid, reducer pipe, blade composition, one end are connected by check valve, and the other end is connected with check valve；The dropproducing devices include
Flange, pipeline and drop produce piece and broken fluid apertures composition thereon, and one end is connected with check valve, the other end and check valve phase
Even；The hydrops cut-off equipment is made of flow-stopping sheet and spout hole, and one end is connected with check valve, the other end and check valve phase
Even；The spiral generating means is made of flange, pipeline and blade, and one end is connected with check valve, and the other end is connected with check valve.
Ground natural gas enters pipeline, and by having entered liquid device after check valve, gas passes through after reducer pipe accelerates
Impeller produces stronger spiral flow, and hydrops is rolled and carried by the impact force and the tangential force of spiral flow produced using high flow rate.
The effective hydrops for removing the low-lying place of pipeline.Play liquid device reducer pipe and use the form shunk by upper end and amplified, so may be used
So that the hydrops of bend pipe junction is not at lower stream of airflow and can not impact place.Reducing angle [alpha]1For 45 °~60 °.Reducing pipe range
Spend for 1000~3000mm.Impeller is mainly made by corrosion-resistant, high pressure resistant and low temperature material, and impeller riding position exists
At 1.5~2D of reducer pipe exit.Impeller blade number is 3~6, impeller angle α2For 60~120 °, the leaf of impeller
Piece radical length is 0.7~0.9 times of radius at reducer pipe small pipe section.After strong spiral flow being produced after reducer pipe improves flow velocity,
Hydrops is rolled and carried by joint spiral flow and impact force, effectively removes the hydrops at the low-lying place of pipeline.Due to the hydrops carried
Volume is larger, is unfavorable for conveying, therefore sets dropproducing devices, and the liquid group carried enters drop by check valve and produces dress
Put, liquid group disperses after producing piece and broken fluid apertures thereon by hitting drop, and formation droplet is easily portable.Drop produces
As shown in Figure 3A, drop produces piece and the angle α of pipeline flow direction to generating apparatus3Scope is 45~65 °, is distributed 3 in the device
~6 row, it is respectively that round hole, triangle perforate and rectangle opening tapping add silk screen that broken fluid apertures, which has three kinds of perforate modes,
Broken fluid apertures number is 30~40, point 3~4 rows.Dropproducing devices overall length is 1000~2000mm.Ramping up pipeline
In, with the decay of carrying process spiral flow, drop will gradually tend to settle, since gravity can be downward after droplet deposition
Reflux, therefore set hydrops cut-off equipment to stop drop reflux in pipeline, it is connected by check valve with dropproducing devices.
Flow-stopping sheet and pipeline flow direction angle α in hydrops cut-off equipment4It is constantly poly- in angle to prevent from being cut drop for 5~30 °
Collection, arranges spout hole so that then drop is carried, overflow by air-flow again by becoming smaller after flow-stopping sheet on flow-stopping sheet
Hole mesh number scope is 20~30.Play the impeller that cyclone is mainly made by corrosion-resistant, high pressure resistant and low temperature material, leaf
Impeller blade number is 3~6, impeller angle α5For 60~120 °, the blade radial length of impeller is the 0.7 of gas pipeline radius
~0.9 times, it is 1000~3000mm to play cyclone overall length.For spiral flow along the continuous attenuation problem of journey, the present invention using every
150~220m places one and plays cyclone and the method for hydrops cut-off equipment, not only can guarantee that the air input efficiency of natural gas line, but also
The hydrops in pipeline can effectively be removed.
The remarkable advantage of the present invention is in the following aspects：
(1) hydrops starter is used, flow velocity is improved by way of helical flow generating device is combined reducer pipe increases
Add impact force and spiral intensity of flow.Make gas shock pipeline low-lying or the hydrops of corner, joint spiral flow and impact force are incited somebody to action
Hydrops is rolled and carried, and effectively removes the hydrops in pipeline；
(2) dropproducing devices are used, it is scattered for impingement baffles and broken fluid apertures after liquid group is accelerated by baffle, is formed
Droplet is easily portable；
(3) spiral generating means is used in inclination pipeline section, generates spiral flow, carry by scattered droplet.More added with
Remove to effect the hydrops in pipeline；
(4) hydrops cut-off equipment is used, stops drop reflux, and arranges that micropore prevents that being cut drop is pressing from both sides on flow-stopping sheet
Constantly assemble at angle, ensure the carrying of drop；
(5) spiral generating means and hydrops cut-off equipment is placed on certain distance in pipeline, maintains spiral flow, Ji Nengbao
The air input efficiency of natural gas line is demonstrate,proved, and can effectively remove the hydrops in pipeline.
(6) overall investment cost and operating cost are relatively low.
Brief description of the drawings
Fig. 1 spiral flow drainage arrangement schematic diagrames；
Fig. 2 hydrops starter schematic diagrames；
Fig. 3 A are dropproducing devices schematic diagram, and Fig. 3 B produce piece schematic diagram for drop；
Fig. 4 A hydrops cut-off equipment schematic diagrames, Fig. 4 B flow-stopping sheet schematic diagrames；
The spiral generating means schematic diagrames of Fig. 5；
Wherein 1,3,5,7,9,11- check valves；2- plays liquid device；4- dropproducing devices；6th, 10- hydrops cut-off equipment；
8th, the spiral generating means of 12-；
2-2 is reducer pipe；6-3 is rectangle opening mode；2-1,4-1,8-1 are flange；4-2,8-2 are pipeline；2-3、8-3
For blade；4-3 produces piece for drop；4-4-1 is round hole mode；4-4-2 is triangle perforate mode；6-1 is flow-stopping sheet；
6-2 is spout hole.
Embodiment
Present disclosure is further described in detail with reference to the accompanying drawings and detailed description, here is one
The design parameter of covering device：
The present invention includes hydrops starter, spiral generating means, dropproducing devices and hydrops cut-off equipment.The product
Liquid starter, mainly including check valve (1), a liquid device (2) by flange (2-1), reducer pipe (2-2), blade (2-3) group
Into one end is connected by check valve (1), and the other end is connected with check valve (3)；The dropproducing devices (4) include flange (4-
1), pipeline (4-2) and drop produce piece (4-3) and broken fluid apertures (4-4) composition thereon, and one end is connected with check valve (3), separately
One end is connected with check valve (5)；The hydrops cut-off equipment (6) is made of flow-stopping sheet (6-1) and spout hole (6-2), one end
It is connected with check valve (5), the other end is connected with check valve (7)；The spiral generating means (8) is by flange (8-1), pipeline (8-
2) it is connected with blade (8-3) composition, one end with check valve (7), the other end is connected with check valve (9)；Remaining device further includes product
Liquid cut-off equipment (10) one end is connected with check valve (9), and the other end is connected with check valve (11), spiral generating means (12) one end
It is connected with check valve (11).
Ground natural gas enters pipeline, has entered liquid device (2) afterwards by check valve (1), gas passes through reducer pipe (2-2)
Stronger spiral flow is produced by impeller (2-3) after acceleration, using the impact force of high flow rate and the tangential force of spiral flow by hydrops
Roll and carry.The effective hydrops for removing the low-lying place of pipeline.Liquid device such as Fig. 2 reducer pipes (2-2) use is played to be received by upper end
Contracting and the form of amplification, the hydrops of bend pipe junction is not at lower stream of airflow can not impact place.Reducing angle
α1For 45 °.Reducing length of tube is 3000mm.Impeller (2-3) mainly made by corrosion-resistant, high pressure resistant and low temperature material and
Into impeller riding position is at the 1.5D of reducer pipe exit.Impeller blade number is 3, impeller angle α2For 120 °, leaf
The blade radial length of wheel is 0.8 times of radius at reducer pipe small pipe section.After strong spiral flow being produced after reducer pipe improves flow velocity,
Hydrops is rolled and carried by joint spiral flow and impact force, effectively removes the hydrops at the low-lying place of pipeline.Due to the hydrops carried
Volume is larger, is unfavorable for conveying, therefore sets dropproducing devices (4), and the liquid carried is rolled into a ball enters drop by check valve (3)
Generation device (4), produces piece (4-3) and broken fluid apertures (4-4) thereon liquid group disperses afterwards, form small liquid by hitting drop
Drip easily portable.Dropproducing devices (4) are as shown in figure 3, drop produces piece (10-3) and the angle α of pipeline flow direction3
Scope is 45 °, is distributed 4 rows in the device, every one group of two row is symmetrically placed.Broken fluid apertures is which is provided with, perforate mode there are three kinds such as
Scheme to select circular broken fluid apertures (4-4-1) shown in (3) and add silk screen in tapping, each drop produces on piece and is equipped with broken fluid apertures 3
OK, every row 10.Dropproducing devices overall length is 1000mm.In pipeline is ramped up, with declining for carrying process spiral flow
Subtract, drop will gradually tend to settle, and since gravity can flow back downwards after droplet deposition, hydrops is set in pipeline
Cut-off equipment (6) stops drop reflux, it is connected by check valve (5) with dropproducing devices (4).Hydrops cut-off equipment (6)
As shown in figure 4, flow-stopping sheet (6-1) and pipeline flow direction angle α in hydrops cut-off equipment (6)4For 15 °, to prevent from being cut liquid
Drop in angle constantly to assemble, spout hole (6-2) is arranged on flow-stopping sheet so that drop is by becoming smaller after flow-stopping sheet, so
Carried again by air-flow afterwards, spout hole mesh number scope is 30.Cyclone (8) is played as shown in figure 5, mainly by corrosion-resistant, resistance to
The impeller that high pressure and low temperature material are made, impeller blade number are 3, impeller angle α5For 120 °, the blade of impeller
Radical length is 0.8 times of gas pipeline radius, and it is 2000mm to play cyclone overall length.Constantly decay along journey for spiral flow and ask
Topic, the present invention place one cyclone and the method for hydrops cut-off equipment using every 200m, both can guarantee that natural gas line
Air input efficiency, and can effectively remove the hydrops in pipeline.
Claims (5)
1. a kind of spiral flow drainage arrangement for ground natural-gas transfer pipeline, including hydrops starter, spiral fill
Put, dropproducing devices and hydrops cut-off equipment, it is characterised in that the hydrops starter, mainly including check valve (1),
Playing liquid device (2) includes flange (2-1), reducer pipe (2-2), blade (2-3) composition, and one end is connected by check valve (1), the other end
It is connected with check valve (3)；The dropproducing devices (4) include flange (4-1), pipeline (4-2) and drop and produce piece (4-3)
And broken fluid apertures (4-4) composition thereon, it is connected with the other end of check valve (3)；The hydrops cut-off equipment (6) is by cutting
Flow (6-1) and spout hole (6-2) are formed, and one end is connected with check valve (5), and the other end is connected with check valve (7)；It is described spiral
Generating means (8) is made of flange (8-1), pipeline (8-2) and blade (8-3), and one end is connected with check valve (7), the other end with
Check valve (9) is connected；Remaining device further includes check valve (11), hydrops cut-off equipment (10), spiral generating means (12).
2. a kind of spiral flow drainage arrangement for ground natural-gas transfer pipeline according to claim 1, its feature exist
In the hydrops starter, mainly liquid device (2) is played including check valve (1)；Liquid device (2) is played by flange (2-1), reducing
Manage (2-2), blade (2-3) composition；Reducer pipe caliber least part is 1/2~2/3 at largest portion；At conduit upper
The mode of reducing, reducing angle [alpha]1For 45~60 °；Reducing length of tube is 1000~3000mm；Impeller (2-3) is mainly by corrosion resistant
Erosion, high pressure resistant and low temperature material are made, and impeller riding position is at 1.5~2D of reducer pipe exit；Impeller leaf
Piece number is 3~6, impeller angle α2For 60~120 °, the blade radial length of impeller is radius at reducer pipe small pipe section
0.7~0.9 times；Air-flow produces that stronger spiral flow is low-lying to pipeline or the hydrops of corner produces more after accelerating into reducer pipe
Big impact force, the liquid group of generation roll transport by by spiral flow.
3. a kind of spiral flow drainage arrangement for ground natural-gas transfer pipeline according to claim 1, its feature exist
Drop produces piece (4-3) and the angle α of pipeline flow direction in the dropproducing devices (4)3Scope is 45~65 °,
The row of distribution 4~6, every one group of two row are symmetrically placed in the device；Drop produces and is provided with broken fluid apertures (4-4) on piece (4-3), has
Three kinds of open-cellular forms are respectively round hole (4-4-1), triangle perforate (4-4-2), rectangle opening (4-4-3), and tapping adds
Silk screen；The drop after impingement baffles is flown out from broken fluid apertures, or fly after broken fluid apertures further cuts the drop for producing smaller
Go out；Broken fluid apertures number is 30~40, point 3~4 rows；Dropproducing devices overall length is 1000~2000mm；Due to what is carried
Hydrops volume is larger, is unfavorable for conveying, therefore sets dropproducing devices (4), reduces area of passage by symmetric design, adds
Fast fluid velocity, hits drop generation piece and broken fluid apertures make it that liquid group is scattered, and it is easy to carry to form droplet.
4. a kind of spiral flow drainage arrangement for ground natural-gas transfer pipeline according to claim 1, its feature exist
Flow-stopping sheet (6-1) and pipeline flow direction angle α in the hydrops cut-off equipment (6)4For 5~30 °, to prevent from being cut liquid
Drop in angle constantly to assemble, spout hole (6-2) is arranged on flow-stopping sheet, spout hole mesh number scope is 20~30.
5. a kind of spiral flow drainage arrangement for ground natural-gas transfer pipeline according to claim 1, its feature exist
In the impeller that the spiral generating means (8) is mainly made by corrosion-resistant, high pressure resistant and low temperature material, impeller leaf
Piece number is 3~6, impeller angle α5For 60~120 °, the blade radial length of impeller for gas pipeline radius 0.7~
0.9 times, it is 1000~3000mm to play cyclone overall length；The natural gas of conveying is by shearing and the deflecting effect of impeller, production in pipe
The raw radial velocity perpendicular to axial velocity, that is, generate spiral flow, and the natural gas spiral flow with higher radial speed will manage
Road is low-lying or the hydrops of corner is rolled and carried, and effectively removes the hydrops in pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711043910.8A CN107917303B (en) | 2017-10-31 | 2017-10-31 | Spiral flow drainage device for ground natural gas conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711043910.8A CN107917303B (en) | 2017-10-31 | 2017-10-31 | Spiral flow drainage device for ground natural gas conveying pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107917303A true CN107917303A (en) | 2018-04-17 |
| CN107917303B CN107917303B (en) | 2020-04-28 |
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ID=61895066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711043910.8A Active CN107917303B (en) | 2017-10-31 | 2017-10-31 | Spiral flow drainage device for ground natural gas conveying pipeline |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853348A (en) * | 2020-08-28 | 2020-10-30 | 西安长庆科技工程有限责任公司 | Pipeline interpolation method for improving liquid carrying capacity of low-lying part of gas collecting pipeline |
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| CN202164166U (en) * | 2010-12-31 | 2012-03-14 | 夏旭 | Sewage treatment equipment |
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| CN106322119A (en) * | 2016-09-14 | 2017-01-11 | 西南石油大学 | Accumulated fluid drainage device and control method of gas field gathering and transporting system |
| CN206027351U (en) * | 2016-09-22 | 2017-03-22 | 淮南矿业(集团)有限责任公司 | Gas production body decontamination device is taken out in colliery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH093881A (en) * | 1995-06-21 | 1997-01-07 | Taiko:Kk | Steel pipe pile and its manufacture, and small water-supply system, drainage device, and soil improvement method for soft ground using steel pipe pile |
| JP2003236324A (en) * | 2002-02-15 | 2003-08-26 | Tlv Co Ltd | Gas-liquid separator provided with drain valve |
| CN202164166U (en) * | 2010-12-31 | 2012-03-14 | 夏旭 | Sewage treatment equipment |
| CN106151882A (en) * | 2016-09-05 | 2016-11-23 | 中国石油大学(华东) | A kind of many fluctuatings dampness collector and delivery pipe road hydrops and slug control device |
| CN106322119A (en) * | 2016-09-14 | 2017-01-11 | 西南石油大学 | Accumulated fluid drainage device and control method of gas field gathering and transporting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111853348A (en) * | 2020-08-28 | 2020-10-30 | 西安长庆科技工程有限责任公司 | Pipeline interpolation method for improving liquid carrying capacity of low-lying part of gas collecting pipeline |
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| CN107917303B (en) | 2020-04-28 |
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