CN103599874B - A kind of gathering line corrosion inhibiter coating device - Google Patents
A kind of gathering line corrosion inhibiter coating device Download PDFInfo
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- CN103599874B CN103599874B CN201210350351.6A CN201210350351A CN103599874B CN 103599874 B CN103599874 B CN 103599874B CN 201210350351 A CN201210350351 A CN 201210350351A CN 103599874 B CN103599874 B CN 103599874B
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Abstract
The present invention discloses a kind of pipeline corrosion inhibitor coating device, especially for the corrosion inhibiter coating device of high sulfur-bearing moisture gathering line, device is made up of front rotary shaft and rear rotating shaft two parts, the two is connected by shaft coupling, front rotary shaft is provided with the parts such as positioning disk, sealing cup, supporting disk and turbine, worm mechanism, applying mechanism, rear rotating shaft is installed support wheel mechanism and applying mechanism.The present invention is in conduit running process; under frictional force effect between driving wheel and tube wall, worm-gear-worm rotates; and then rotating shaft rotates before and after driving; pipeline bottom corrosion inhibiter will be deposited on by the applying mechanism be arranged in rotating shaft and be carried to pipeline top, at inner-walls of duct even application one deck corrosion inhibiter diaphragm.The relative tooth counts of worm screw and turbine can be regulated to adjust secondary speed according to gas flow rate in actual film operation, be coated with membrane process without any need for extra power, realize self-driven film, under delamination appears in corrosion inhibiter in pipeline, also can ensure film quality.
Description
Technical field
The present invention discloses a kind of gathering line corrosion inhibiter coating device, especially for the corrosion inhibiter coating device of high sulfur-bearing moisture gathering line.
Background technology
In gas industry, the function of moisture gathering line be by gas gathering station without to be separated and the natural gas of purified treatment is transported to gas treatment plant and processed further.In moisture course of conveying, can heat exchange be there is between pipeline and external environment condition, when heat transfer makes tube wall temperature lower than part heavy constituent meeting condensation during steam dew point out, thus produce hydrops.For the acid gas pipeline containing hydrogen sulfide and carbon dioxide, having under hydrops existence condition, the electrochemical corrosion that pipeline is serious can caused, cause trommel even to bore a hole, thus cause poisonous medium to leak, and then causing the poisoning or accident such as fire, blast.In actual industrial production, usual employing regularly carries out the method for pipeline corrosion inhibitor film to prevent pipeline corrosion.Namely by annotating corrosion inhibiter in pipeline, corrosion inhibiter is fully contacted with inside pipe wall, and corrosion inhibiter is by special close metallicity chemical bond, and meeting and pipe inner metal surface combine strongly, forms layer protecting film.Usually adopt two wipers when carrying out film to tube wall, corrosion inhibiter filling, between former and later two wipers, forms a closed liquid plug.Two wipers in the wings under gas push at walking in pipe, the corrosion inhibiter liquid plug be enclosed between two wipers contacts with tube wall, thus carries out film to tube wall.But in actual film operation process; due to wiper in the duct kinetic characteristic by various factors; former and later two wiper speeds of service are often inconsistent; when the front wiper speed of service is greater than rear wiper; spacing between two wipers of front and back can increase; the corrosion inhibiter be now enclosed between two wipers will no longer be full of whole pipeline; but generation layering; thus cause top tube wall owing to failing to contact with corrosion inhibiter; diaphragm can not be formed; therefore the corrosion rate of overhead line is bottom pipeline, produces so-called pipeline top part corrosion.
US Patent No. 6874193 proposes a kind of ejection-type corrosion inhibiter coating device.This device core component is mounted in the Venturi nozzle of head, and Venturi nozzle is communicated with device afterbody.When wiper backside gas arrives Venturi nozzle; because circulation area reduces suddenly; fluid is accelerated; negative pressure will be produced according to bernoulli principle; cause parital vacuum; thus the liquid being deposited on pipeline bottom is carried via liquid suction pipe enter nozzle, be less easily entrained by and spray to tube wall top, corrosion inhibiter coating protective is carried out to pipeline top.But in use there are the following problems for this device: one is because wiper backside gas constantly enters two enclosure spaces that wiper is formed, thus cause front and back two wiper spacing increasing, the liquid height be enclosed in therebetween is more and more lower, the difficulty that liquid enters nozzle is also increasing, even entirely ineffective; Two is that wiper may rotate in running, thus causes nozzle eject position to depart from pipeline top, thus causes tube wall top not receive atomizing of liquids; Three is that the amount of liquid sprayed is subject to the various factors such as pipeline backside gas flow velocity, pipeline structure, cannot maintain constant, can not ensure pre-film quality.
Article " top part corrosion of moisture pipeline and protection " (corrosion and protection, the 28th volume the 4th phase: 167-170 in 2007) refer to a kind of rotary-type coating device.This device is a cylinder, periphery is processed with many spiral grooves, when device is advanced by gas push in the duct, the air-flow in spiral groove can promote spreader and ceaselessly rotate, thus takes the liquid phase corrosion inhibiter being filled into duct bottom to pipeline top.In fact, because the frictional resistance between wiper and inside pipe wall is quite large, wiper is difficult to rotate in running, bottom liquid cannot be carried to top, therefore cannot be applied in actual production.
Patent of invention CN 102266838 discloses a kind of gathering line corrosion inhibiter coating device, by battery compartment, and motor bin, impeller forms, and impeller is provided with blade, and impeller rotates under motor drives, by blade, pipeline bottom corrosion inhibiter is carried to pipeline top, covers whole inner-walls of duct.The method adopts battery driven motor to rotate, and its running time limits by battery capacity, is difficult to be applicable to the longer gathering line of distance.Meanwhile, connect because device exists electrical equipment, explosion-proof is had higher requirements, the gathering line that conveying is inflammable, explosive uses and there is potential safety hazard.
Summary of the invention
The object of the invention is the defect existed for overcoming coating device in above-mentioned prior art, propose a kind of can without the need to extra power, can by the self-driven type gathering line corrosion inhibiter coating device of corrosion inhibiter even application in tube wall surrounding.
The present invention is made up of front rotary shaft and rear rotating shaft two parts, the two is connected by shaft coupling, front rotary shaft top is provided with anti-raming, anti-ram and rotating shaft between shaft coupling is provided with fore bearing, turbine and applying mechanism successively, fore bearing outer wall is provided with positioning disk successively, sealing cup and supporting disk, supporting disk top is provided with front bearing wheel support, supporting disk bottom is provided with endless screw support, front support wheel support end is provided with support wheel, endless screw support end is provided with worm mechanism, and the front rotary shaft between turbine and shaft coupling is provided with applying mechanism; Rear rotating shaft is furnished with rear support mechanism, rear rotating shaft afterbody is provided with transmitter, and the rear rotating shaft between supporting mechanism and transmitter is provided with applying mechanism.
Worm mechanism is made up of driving wheel, worm screw, connecting axle, and driving wheel has two, is arranged symmetrically in connecting axle two ends, and worm screw is positioned in the middle of two driving wheels, and the turbine on worm screw and front rotary shaft intercouples.Rear support mechanism is taken turns by rear bearing, support arm and rear support and forms, and support arm number is at least 4, and be circumferentially evenly arranged on rear bearing outer wall, support wheel is arranged on the end of support arm.Applying mechanism is made up of swirl vane and soft brush, and swirl vane is circumferentially evenly arranged on rotating shaft outer wall, and soft brush is arranged on the outer rim of swirl vane.
The present invention is coated with in membrane process in pipeline, rotate under the frictional force effect of its driving wheel between tube wall, coaxial worm screw is driven to rotate, worm screw drives the turbine rotation be coupled with it, driven by rotating wheel rotating shaft rotates in front and back bearings, pipeline top is carried to by the applying mechanism pipeline bottom corrosion inhibiter be fixedly mounted in rotating shaft, by soft brush by whole inner-walls of duct even application one deck corrosion inhibiter diaphragm, can according to film process gas flow velocity, the relative tooth counts of worm screw and turbine is regulated to adjust wheel speed, ensure that film quality, effective reduction top part corrosion speed.Without any need for extra power, only rely on the frictional force between driving wheel and tube wall, drive worm-gear-worm structure to rotate, realize self-driven film, under delamination appears in corrosion inhibiter in pipeline in time, also can ensure film quality.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is worm mechanism sectional view of the present invention;
Fig. 3 is rear support structural scheme of mechanism of the present invention;
Fig. 4 is applying mechanism operating diagram of the present invention;
Fig. 5 is the present invention's film process schematic in gathering line.
Detailed description of the invention
As shown in Figure 1, the present invention includes front rotary shaft 9 and rear rotating shaft 12 two parts, the two is connected by shaft coupling 10, front rotary shaft 9 head is provided with to be prevented raming 1, anti-rotating shaft 9 of raming between 1 and shaft coupling 10 is provided with fore bearing 17 successively, turbine 7 and applying mechanism 8, fore bearing 17 outer wall is provided with positioning disk 2 successively, sealing cup 3 and supporting disk 4, supporting disk 4 top is provided with front support wheel support 5, supporting disk 4 bottom is provided with endless screw support 16, front support wheel support 5 end is provided with front support wheel 6, endless screw support 16 end is provided with worm mechanism 15, front rotary shaft 9 between turbine 7 and shaft coupling 10 is provided with applying mechanism 8, rear rotating shaft 12 is furnished with rear support mechanism 11, and rear rotating shaft 12 afterbody is provided with transmitter 13, and the rear rotating shaft 12 between rear support mechanism 11 and transmitter 13 is provided with applying mechanism 8.
As shown in Figure 2, worm mechanism 15 is made up of driving wheel 18, worm screw 19, connecting axle 20, and driving wheel 18 has two, be arranged in connecting axle 20 two ends, its material is polyurethane or rubber, and worm screw 19 is positioned in the middle of two driving wheels 18, and worm screw 19 intercouples with the turbine 7 on front rotary shaft 9.
As shown in Figure 3, rear support mechanism 11 takes turns 24 by rear bearing 14, support arm 23 and rear support and forms, and support arm 23 number is at least 4, is circumferentially evenly arranged on the outer wall of rear bearing 14, and support arm 23 end is provided with rear support wheel 24.Under the effect of support arm 23 spring tension, rear support wheel 24 and pipeline 21 inwall close contact.Rear support mechanism 11 mainly plays a supportive role, and keeps stress balance and stablizes, reducing eccentric wear.
As shown in Figure 4, applying mechanism 8 is made up of swirl vane 25 and soft brush 26, and swirl vane 25 is circumferentially evenly arranged on the outer wall of front rotary shaft 9 and rear rotating shaft 12, and soft brush 26 is arranged on the end of swirl vane 25.Drive swirl vane 25 together to rotate when rotating shaft 9 rotates, thus the corrosion inhibiter liquid be deposited on bottom pipeline 21 is constantly carried to pipeline 21 top by soft brush 26, even application is on the inwall of pipeline 21.
As shown in Figure 5, carrying out in the operation of pipeline film, the present invention is placed in the pipeline 21 treating film, a conventional wiper 28 is thrown in the pipeline of rear rotating shaft 12 side, to be annotated in the pipeline section between the present invention and conventional wiper corrosion inhibiter 27 by corrosion inhibiter filler 22, make corrosion inhibiter 27 be full of this enclosure space.During film operation, in pipeline 21, carry gas by conventional wiper 28 side, rely on strength pressure to promote described stream oriented device and walk in pipeline 21, thus start film operation.
When the present invention runs under air propels in pipeline, under the spring tension effect that front support takes turns 6 and endless screw support 16, be arranged in the inwall close contact of worm mechanism 15 two driving wheels 18 and pipeline 21, under frictional force effect, driving wheel 18 againsts the rotation of pipeline 21 inwall, driving wheel 18 drives coaxial worm screw 19 to rotate with identical angular speed in rotation process, because worm screw 19 and the turbine 7 be arranged on front rotary shaft 9 intercouple, form a pair worm-gear-worm system, thus drive turbine 7 to rotate.Front rotary shaft 9 is driven to rotate in turbine 7 rotation process, because applying mechanism 8 is fixed on front rotary shaft 9, together rotate together with front rotary shaft 9, swirl vane 25 on applying mechanism 8 is in rotary course, pipeline 21 bottom corrosion inhibiter 27 will be deposited on by the soft brush 26 of its end and constantly be carried to top, thus on tube section, apply the uniform inhibitor film of last layer, whole pipeline 21 tube wall is fully contacted with corrosion inhibiter 27, front rotary shaft 9 is while along pipeline 21 axial-movement while rotate, thus whole pipeline 21 inwall is all covered by corrosion inhibiter 27, reduce corrosion risk.
Because front rotary shaft 9 end is connected with rear rotating shaft 12 by shaft coupling 10, shaft coupling 10 can ensure the present invention smoothly by the pipeline with certain curvature, avoids the generation of blocking phenomenon.Positioning disk 2 on front rotary shaft 9, sealing cup 3 and supporting disk 4 play guiding, sealing and supporting role respectively in running of the present invention.
Rear rotating shaft 12 is also provided with applying mechanism 8; in the present invention in pipeline in running; after under shaft coupling drives, rotating shaft 12 together rotates with front rotary shaft 9; tube wall applies corrosion inhibiter diaphragm again; can effectively prevent rear support from taking turns 24 to the destruction of the corrosion inhibiter diaphragm that upstream has just applied in traveling process, further enhancing corrosion inhibiter film effect.
The afterbody of rear rotating shaft 12 is provided with transmitter 13, can position the present invention, and the moment monitors the ruuning situation of the present invention in pipeline 21.
Before film is carried out to pipeline 21, rotating speed can be changed by the cooperation between adjustment driven gear and transmitting gear, adjust corrosion inhibiter 27 and the time of contact of pipeline 21 inwall, ensure that film quality.
Visible, applicability of the present invention is strong, even if the speed of described stream oriented device due to walking in pipeline is inconsistent, when causing closed corrosion inhibiter 27 liquid to present laminar flow, also can ensure corrosion inhibiter coating effect.
Claims (2)
1. a pipeline corrosion inhibitor coating device, comprise front rotary shaft (9) and rear rotating shaft (12), it is characterized in that, front rotary shaft (9) is connected by shaft coupling (10) with rear rotating shaft (12), front rotary shaft (9) top is provided with prevents raming (1), anti-ram (1) and front rotary shaft (9) between shaft coupling (10) is provided with fore bearing (17) successively, turbine (7) and applying mechanism (8), fore bearing (17) outer wall is provided with successively positioning disk (2), sealing cup (3) and supporting disk (4), supporting disk (4) top is provided with front support wheel support (5), supporting disk (4) bottom is provided with endless screw support (16), front support wheel support (5) end is provided with front support wheel (6), endless screw support (16) end is provided with worm mechanism (15), front rotary shaft (9) between turbine (7) and shaft coupling (10) is provided with applying mechanism (8), rear rotating shaft (12) is furnished with rear support mechanism (11), rear rotating shaft (12) afterbody is provided with transmitter (13), rear rotating shaft (12) between rear support mechanism (11) and transmitter (13) is provided with applying mechanism (8),
Described worm mechanism (15) is made up of driving wheel (18), worm screw (19), connecting axle (20), driving wheel (18) has two, be arranged symmetrically in connecting axle (20) two ends, worm screw (19) is positioned in the middle of two driving wheels (18), and worm screw (19) intercouples with the turbine (7) on front rotary shaft (9);
Described rear support mechanism (11) takes turns (24) by rear bearing (14), support arm (23) and rear support and forms, support arm (23) number is at least 4, circumferentially evenly be arranged on rear bearing (14) outer wall, support wheel (24) is arranged on the end of support arm (23).
2. a kind of pipeline corrosion inhibitor coating device according to claim 1, it is characterized in that, described applying mechanism (8) is made up of swirl vane (25) and soft brush (26), swirl vane (25) is circumferentially evenly arranged on rotating shaft outer wall, and soft brush (26) is arranged on the outer rim of swirl vane (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210350351.6A CN103599874B (en) | 2012-09-05 | 2012-09-05 | A kind of gathering line corrosion inhibiter coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210350351.6A CN103599874B (en) | 2012-09-05 | 2012-09-05 | A kind of gathering line corrosion inhibiter coating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103599874A CN103599874A (en) | 2014-02-26 |
| CN103599874B true CN103599874B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210350351.6A Expired - Fee Related CN103599874B (en) | 2012-09-05 | 2012-09-05 | A kind of gathering line corrosion inhibiter coating device |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950859B (en) * | 2015-06-30 | 2017-09-29 | 西南石油大学 | A kind of low-lying place's hydrops of pipeline is excluded and density of corrosion inhibitor on-Line Monitor Device and method |
| CN106000733A (en) * | 2016-07-19 | 2016-10-12 | 四川海隆石油技术有限公司 | Elbow inner wall coating machine |
| CN106513258A (en) * | 2016-12-19 | 2017-03-22 | 沈阳鑫联石化设备有限公司 | Pipeline coating device |
| CN106890748B (en) * | 2017-04-19 | 2023-03-31 | 西南石油大学 | Film coating pipe cleaner with emergency starting system and using method thereof |
| CN107150014B (en) * | 2017-07-02 | 2023-06-20 | 中国人民解放军92228部队 | Method and device for applying paint in pipeline |
| CN110434129A (en) * | 2018-05-02 | 2019-11-12 | 中国石油天然气集团有限公司 | Pipe cleaner |
| CN109127295B (en) * | 2018-09-18 | 2019-12-13 | 安徽新合富力科技有限公司 | Smearing device and smearing process for pickling passivation paste on inner wall of metal pipe |
| CN112024214B (en) * | 2020-08-24 | 2021-08-17 | 西南石油大学 | Corrosion inhibitor spraying and coating device for gathering and transportation pipeline and operation method thereof |
| CN112808716A (en) * | 2020-12-18 | 2021-05-18 | 中国二冶集团有限公司 | Mechanical pipe cleaner and pipe cleaning method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3135629A (en) * | 1961-07-31 | 1964-06-02 | Harvest Queen Mill & Elevator | Pipeline coating unit |
| CN2137989Y (en) * | 1992-07-06 | 1993-07-14 | 胜利石油管理局油建一公司 | Wind driving painter in steel tube |
| JP2011092917A (en) * | 2009-09-29 | 2011-05-12 | Teral Inc | Coating spray apparatus |
| CN102266838A (en) * | 2010-05-19 | 2011-12-07 | 中国石油化工集团公司 | Film coating machine of inhibiter for gathering and transporting pipeline |
| CN202877044U (en) * | 2012-09-05 | 2013-04-17 | 梁法春 | Corrosion inhibitor film coating device of gathering and transporting pipeline |
-
2012
- 2012-09-05 CN CN201210350351.6A patent/CN103599874B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3135629A (en) * | 1961-07-31 | 1964-06-02 | Harvest Queen Mill & Elevator | Pipeline coating unit |
| CN2137989Y (en) * | 1992-07-06 | 1993-07-14 | 胜利石油管理局油建一公司 | Wind driving painter in steel tube |
| JP2011092917A (en) * | 2009-09-29 | 2011-05-12 | Teral Inc | Coating spray apparatus |
| CN102266838A (en) * | 2010-05-19 | 2011-12-07 | 中国石油化工集团公司 | Film coating machine of inhibiter for gathering and transporting pipeline |
| CN202877044U (en) * | 2012-09-05 | 2013-04-17 | 梁法春 | Corrosion inhibitor film coating device of gathering and transporting pipeline |
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| CN103599874A (en) | 2014-02-26 |
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