CN103599874A - Corrosion inhibitor coating device for gathering and transportation pipelines - Google Patents
Corrosion inhibitor coating device for gathering and transportation pipelines Download PDFInfo
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- CN103599874A CN103599874A CN201210350351.6A CN201210350351A CN103599874A CN 103599874 A CN103599874 A CN 103599874A CN 201210350351 A CN201210350351 A CN 201210350351A CN 103599874 A CN103599874 A CN 103599874A
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- rotating shaft
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Abstract
The invention discloses a pipeline corrosion inhibitor coating device, and especially relates to a corrosion inhibitor coating device for gathering and transportation pipelines for high sulphur content wet gas. The device is composed of two parts, namely a front rotating shaft and a rear rotating shaft, the front rotating shaft and the rear rotating shaft are connected through a shaft coupling; wherein the front rotating shaft is provided with a guiding disc, a sealing leather cup, a supporting disc, a turbine-worm mechanism, and a coating mechanism, and the rear rotating shaft is provided with a supporting wheel mechanism and a coating mechanism. During the pipeline operation process, under the friction action between the driving wheel and the pipe wall, the turbine-worm mechanism rotates and drives the front rotating shaft and the rear rotating shaft to rotate so as to drive the coating mechanism arranged in the rotating shafts to transport the corrosion inhibitor in the lower part of the pipeline to the top part of the pipeline, and thus the inner wall of the pipeline is evenly coated with a protective film layer of corrosion inhibitor. In an actual coating operation, the worm rotation speed can be adjusted according to the gas flow speed through adjusting the relative gear number of the worm and the turbine; the whole coating process does not need any other external force, thus automatic coating is achieved; and even under the layering condition of the corrosion inhibitor, coating quality can also be guaranteed.
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, in the function Shi Jiang gas gathering station of moisture gathering line, without the natural gas of separated and purified treatment, transport to gas treatment factory and further process.In moisture course of conveying, between pipeline and external environment condition, can there is heat exchange, when heat conduction makes tube wall temperature lower than steam dew point part heavy constituent can condensation out, thereby produce hydrops.For the acid gas pipeline that contains hydrogen sulfide and carbon dioxide, having under hydrops existence condition, can cause the electrochemical corrosion that pipeline is serious, cause tube wall attenuate even to bore a hole, thereby cause poisonous medium to leak, and then cause the accidents such as poisoning or fire, blast.In actual industrial production, conventionally employing is regularly carried out the method that pipeline corrosion inhibitor films and is prevented pipeline corrosion.By the corrosion inhibiter of annotating in pipeline, corrosion inhibiter is fully contacted with inside pipe wall, corrosion inhibiter is by special close metallicity chemical bond, and meeting and the strong combination of pipe inner metal surface, form layer protecting film.When tube wall is filmed, conventionally adopt two wipers, corrosion inhibiter is annotated between former and later two wipers, forms the liquid plug of a sealing.Two wipers in the wings under gas push at walking in pipe, the corrosion inhibiter liquid plug being enclosed between two wipers contacts with tube wall, thereby tube wall is filmed.But film in operation process actual; because wiper kinetic characteristic in pipeline is subject to various factors; former and later two wiper speeds of service are often inconsistent; when the place ahead wiper speed of service is greater than rear wiper; spacing between two wipers of front and back can increase; the corrosion inhibiter being now enclosed between two wipers will no longer be full of whole pipeline; but generation layering; thereby cause top tube wall to contact with corrosion inhibiter owing to failing; can not form diaphragm; therefore the corrosion rate of overhead line, much larger than pipeline bottom, 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 and device afterbody are communicated with.When wiper backside gas arrives Venturi nozzle; because circulation area is dwindled suddenly; fluid is accelerated; according to bernoulli principle, will produce negative pressure; cause parital vacuum; thereby make the liquid that is deposited on pipeline bottom be carried and enter nozzle via liquid suction tube, by air-flow, carried secretly to tube wall top and spray, corrosion inhibiter coating protective is carried out in pipeline top.But in use there are the following problems for this device: the one, because wiper backside gas constantly enters two enclosure spaces that wiper forms, thereby before and after causing, two wiper spacing are increasing, the liquid height being enclosed in is therebetween more and more lower, it is also increasing, even entirely ineffective that liquid enters the difficulty of nozzle; The 2nd, wiper may rotate in running, thereby causes nozzle ejection position deviation pipeline top, thereby causes tube wall top may not receive atomizing of liquids; The 3rd, the amount of liquid spraying is subject to the various factors such as pipeline backside gas flow velocity, pipeline structure, cannot remain constant, can not guarantee pre-film quality.
Article " top part corrosion of moisture pipeline and protection " (corrosion and protection, the 28th the 4th phase of volume in 2007: 167-170) mentioned 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 pipeline, the air-flow in spiral groove can promote spreader and ceaselessly rotate, thereby takes the liquid phase corrosion inhibiter that is 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 blade is installed on impeller, impeller rotation 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 rotation, and limited by battery capacity its running time, is difficult to be applicable to the gathering line that distance is longer., because device exists electrical equipment, connect meanwhile, explosion-proof is had higher requirements, carrying use on inflammable, explosive gathering line to have potential safety hazard.
Summary of the invention
The object of the invention is the defect existing for overcoming coating device in above-mentioned prior art, propose a kind of can be without extra power, corrosion inhibiter evenly can be coated in to the self-driven type gathering line corrosion inhibiter coating device of tube wall surrounding.
The present invention is comprised 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 shaft coupling between rotating shaft on fore bearing, turbine and applying mechanism are installed successively, positioning disk is installed on fore bearing outer wall 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, on the front rotary shaft between turbine and shaft coupling, applying mechanism is installed; In rear rotating shaft, be furnished with rear support wheel mechanism, rear rotating shaft afterbody is provided with transmitter, in the rear rotating shaft between supporting mechanism and transmitter, applying mechanism is installed.
Worm mechanism is comprised 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 wheel mechanism is comprised of rear bearing, support arm and rear support wheel, and support arm number is at least 4, and along being circumferentially evenly arranged on rear bearing outer wall, support wheel is arranged on the end of support arm.Applying mechanism is comprised of swirl vane and soft brush, and swirl vane is along being 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, its driving wheel and tube wall between frictional force effect under rotate, drive coaxial worm screw rotation, worm screw drives the turbine rotation of coupling with it, driven by rotating wheel rotating shaft is rotated in front and back bearings, by the applying mechanism pipeline bottom corrosion inhibiter being fixedly mounted in rotating shaft, be carried to pipeline top, by soft brush, whole inner-walls of duct is evenly applied to one deck corrosion inhibiter diaphragm, can be according to the process gas flow velocity of filming, regulate the relative number of teeth of worm screw and turbine to adjust wheel speed, guaranteed film quality, effectively reduce top part corrosion speed.Without any need for extra power, only rely on the frictional force between driving wheel and tube wall, drive the rotation of turbine-worm structure, realize self-driven filming, in pipeline, corrosion inhibiter occurs, in layering situation, also can guaranteeing film quality in time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is worm mechanism cutaway view of the present invention;
Fig. 3 is rear support structural scheme of mechanism of the present invention;
Fig. 4 is applying mechanism work schematic diagram of the present invention;
Fig. 5 is that the present invention is coated with membrane process schematic diagram in gathering line.
The specific embodiment
As shown in Figure 1, the present invention includes rotating shaft 9 and rear rotating shaft 12 two parts, the two is connected by shaft coupling 10, front rotary shaft 9 heads are provided with to be prevented raming 1, anti-ram 1 and shaft coupling between rotating shaft 10 on fore bearing 17 is installed successively, turbine 7 and applying mechanism 8, on fore bearing 17 outer walls, positioning disk 2 is installed successively, sealing cup 3 and supporting disk 4, supporting disk 4 tops are provided with front bearing wheel support 5, supporting disk 4 bottoms are provided with endless screw support 16, front support wheel support 5 ends are provided with support wheel 6, endless screw support 17 ends are provided with worm mechanism 15, on front rotary shaft 9 between turbine 7 and shaft coupling 10, applying mechanism 8 is installed, in rear rotating shaft 12, be furnished with rear support wheel mechanism 11, rear rotating shaft 12 afterbodys are provided with transmitter 13, in the rear rotating shaft 12 between supporting mechanism 11 and transmitter 13, applying mechanism 8 are installed.
As shown in Figure 2, worm mechanism 15 is comprised 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 19, and worm screw 19 intercouples with the turbine 7 on front rotary shaft 9.
As shown in Figure 3, rear support wheel mechanism 11 is comprised of rear bearing 14, support arm 23 and rear support wheel 24, and support arm 24 numbers are at least 4, and along being circumferentially evenly arranged on the outer wall of rear bearing 14, support arm 23 ends are provided with rear support wheel 24.Under support arm 23 spring tension effects, support wheel 24 and pipeline 21 inwall close contacts.Rear support mechanism 11 mainly plays a supportive role, and keeps stress balance and stable, reduces eccentric wear.
As shown in Figure 4, applying mechanism 8 is comprised of swirl vane 25 and soft brush 26, and swirl vane 25 is along being 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.During rotating shaft 9 rotation, drive swirl vane 25 together to rotate, thereby soft brush 26 is constantly carried to pipeline 21 tops by the corrosion inhibiter liquid that is deposited on pipeline 21 bottoms, is evenly coated on the inwall of pipeline 21.
As shown in Figure 5, film in operation carrying out pipeline, the present invention is placed in to pipeline to be filmed 21, in the pipeline of rear rotating shaft 12 1 sides, throw in a conventional wiper 28, by corrosion inhibiter filler 22, to the corrosion inhibiter 27 of annotating in the pipeline section between the present invention and conventional wiper, make corrosion inhibiter 27 be full of this enclosure space.While filming operation, by the interior conveying gas of conventional wiper 28 1 side direction pipeline 17, rely on strength pressure to promote described stream oriented device and walk in pipeline 21, thereby start the operation of filming.
When the present invention moves under air-flow promotes in pipeline, under the spring tension effect of front support wheel 6 and endless screw support 16, be arranged in the inwall close contact of 15 two driving wheels of worm mechanism 18 and pipeline 21, under frictional force effect, driving wheel 18 is pasting pipeline 21 inwalls rotations, 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 being arranged on front rotary shaft 9 intercouple, form a pair of turbine-endless screw system, thereby drive turbine 7 to rotate.In turbine 7 rotation processes, drive front rotary shaft 9 to rotate, because applying mechanism 8 is fixed on front rotary shaft 9, together with front rotary shaft 9, together rotate, swirl vane 25 on applying mechanism 8 is in rotary course, soft brush 26 by its end will be deposited on pipeline 21 bottom corrosion inhibiter 27 and constantly be carried to top, thereby on tube section, apply the uniform inhibitor film of last layer, whole pipeline 21 tube walls are fully contacted with corrosion inhibiter 18, front rotary shaft 10 rotates on one side along pipeline 21 axial-movements on one side, thereby whole pipeline 21 inwalls are all covered by corrosion inhibiter 27, reduce corrosion risk.
Because front rotary shaft 9 ends are connected with rear rotating shaft 12 by shaft coupling 10, shaft coupling 10 can ensure that 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 respectively guiding, sealing and supporting role in running of the present invention.
In rear rotating shaft 12, applying mechanism 8 is also installed; in the present invention in pipeline in running; after under shaft coupling drives, rotating shaft 12 is together rotated with front rotary shaft 9; on tube wall, again apply corrosion inhibiter diaphragm; can effectively prevent rear support wheel 24 in traveling process to the just destruction of the corrosion inhibiter diaphragms of coating in upstream, further strengthen the corrosion inhibiter effect of filming.
The afterbody of rear rotating shaft 12 is provided with transmitter 13, can position the present invention, monitors the ruuning situation of the present invention in pipeline 21 constantly.
Before pipeline 21 is filmed, can change rotating speed by the cooperation of adjusting between driven gear and transmitting gear, adjust the time of contact of corrosion inhibiter 27 and pipeline 21 inwalls, guaranteed film quality.
Visible, applicability of the present invention is strong, though described stream oriented device in pipeline because the speed of walking is inconsistent, cause corrosion inhibiter 27 liquid of sealing to present in the situation of laminar flow, also can guarantee corrosion inhibiter coating effect.
Claims (4)
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 anti-ram (1), anti-ram (1) and shaft coupling (10) between front rotary shaft (9) on fore bearing (17) is installed successively, turbine (7) and applying mechanism (8), on fore bearing (17) outer wall, positioning disk (2) is installed successively, sealing cup (3) and supporting disk (4), supporting disk (4) top is provided with bearing wheel support (5), supporting disk (4) bottom is provided with endless screw support (16), front support wheel support (5) end is provided with support wheel (6), endless screw support (17) end is provided with worm mechanism (15), on front rotary shaft (9) between turbine (7) and shaft coupling (10), applying mechanism (8) is installed, in rear rotating shaft (12), be furnished with rear support wheel mechanism (11), rear rotating shaft (12) afterbody is provided with transmitter (13), in rear rotating shaft (12) between supporting mechanism (11) and transmitter (13), applying mechanism (8) is installed.
2. a kind of pipeline corrosion inhibitor coating device according to claim 1, it is characterized in that, described worm mechanism (15) is comprised 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).
3. a kind of pipeline corrosion inhibitor coating device according to claim 1, it is characterized in that, described rear support wheel mechanism (11) is comprised of rear bearing (14), support arm (23) and rear support wheel (24), support arm (23) number is at least 4, along being circumferentially evenly arranged on rear bearing (14) outer wall, support wheel (24) is arranged on the end of support arm (23).
4. a kind of pipeline corrosion inhibitor coating device according to claim 1, it is characterized in that, described applying mechanism (8) is comprised of swirl vane (25) and soft brush (26), swirl vane (25) is along being 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 |
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| CN103599874A true CN103599874A (en) | 2014-02-26 |
| CN103599874B CN103599874B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950859A (en) * | 2015-06-30 | 2015-09-30 | 西南石油大学 | Device and method for removing accumulated fluids in low-lying positions of pipeline and monitoring concentration of corrosion inhibitor on line |
| 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 |
| CN106890748A (en) * | 2017-04-19 | 2017-06-27 | 西南石油大学 | A kind of film wiper with emergency start system |
| CN107150014A (en) * | 2017-07-02 | 2017-09-12 | 大庆庆鲁朗润科技有限公司 | The method and apparatus of coating coating in pipeline |
| CN109127295A (en) * | 2018-09-18 | 2019-01-04 | 安徽新合富力科技有限公司 | A kind of application device for inner wall of metal tube acid wash passivation cream |
| CN110434129A (en) * | 2018-05-02 | 2019-11-12 | 中国石油天然气集团有限公司 | Pipe cleaner |
| CN112024214A (en) * | 2020-08-24 | 2020-12-04 | 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 |
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| 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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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 |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950859A (en) * | 2015-06-30 | 2015-09-30 | 西南石油大学 | Device and method for removing accumulated fluids in low-lying positions of pipeline and monitoring concentration of corrosion inhibitor on line |
| 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 |
| CN106890748A (en) * | 2017-04-19 | 2017-06-27 | 西南石油大学 | A kind of film wiper with emergency start system |
| 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 |
| CN107150014A (en) * | 2017-07-02 | 2017-09-12 | 大庆庆鲁朗润科技有限公司 | The method and apparatus of coating coating 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 |
| CN109127295A (en) * | 2018-09-18 | 2019-01-04 | 安徽新合富力科技有限公司 | A kind of application device for inner wall of metal tube acid wash passivation cream |
| 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 |
| CN112024214A (en) * | 2020-08-24 | 2020-12-04 | 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 |
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| CN103599874B (en) | 2015-08-26 |
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