CN105381933A - Gathering and transportation pipeline corrosion inhibitor coating device - Google Patents
Gathering and transportation pipeline corrosion inhibitor coating device Download PDFInfo
- Publication number
- CN105381933A CN105381933A CN201510683191.0A CN201510683191A CN105381933A CN 105381933 A CN105381933 A CN 105381933A CN 201510683191 A CN201510683191 A CN 201510683191A CN 105381933 A CN105381933 A CN 105381933A
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- CN
- China
- Prior art keywords
- main shaft
- coating device
- corrosion inhibiter
- gathering
- fixed muffle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C7/00—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work
- B05C7/06—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work by devices moving in contact with the work
- B05C7/08—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work by devices moving in contact with the work for applying liquids or other fluent materials to the inside of tubes
Abstract
A gathering and transportation pipeline corrosion inhibitor coating device is mainly composed of a main shaft, two sets of power device assemblies, three sets of coating brushes, a front set of anti-collision head and guiding disc and a rear set of anti-collision head and guiding disc. According to a coating method of the coating device, power devices decompose axial force into forward force and force enabling the device to rotate along the shaft through pushing of the axial force of a pipe cleaning device at the rear end of the coating device, the corrosion inhibitor deposited at the lower portion of a pipeline is carried to the top of the pipeline during forward walking, and the inner wall of the pipeline is evenly coated with a layer of corrosion inhibitor protection film. Compared with an existing corrosion inhibitor coating device, the gathering and transportation pipeline corrosion inhibitor coating device has the advantages of being small in size, compact in structure, free of additional power, safe, reliable and the like.
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 CN102266838 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.
In order to overcome the defect that coating device in above-mentioned prior art exists, the present invention 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.Compared with existing corrosion inhibiter coating device, have that volume is little, compact conformation, without the need to extra power, the advantage such as safe and reliable.
Summary of the invention:
The present invention relates to a kind of gathering line corrosion inhibiter coating device, mainly comprise a main shaft, Package power and coating brush, main shaft is the cylindrical structure of inner hollow, its rear and front end is separately installed with anti-raming and positioning disk, Package power has two groups, the number often organizing Package power is 3, respectively along main shaft circumferentially, the main shaft before and after two groups of Package powers is all provided with coating brush.
Described Package power by fixed muffle, angular adjustment bar, linkage rod supporting mechanism and driving wheel composition, one end of fixed muffle is fixed on the cylinder body outer wall of main shaft, is provided with angular adjustment bar in the cylindrical shell of the other end; Angular adjustment bar one end is embedded in fixed muffle, and the other end is connected with linkage rod supporting mechanism, and tie-bar support structure end is provided with driving wheel.
Described fixed muffle is fixed on the same cross section with the central axis of main shaft, angle is each other 120 °, the cylinder inboard wall of fixed muffle has circumferentially been evenly arranged several gathering sills, fixed muffle be connected with angular adjustment bar side body end surface on be provided with the angle indicating dial at the circumferential angle showing gathering sill.
Described angular adjustment bar is cylinder, its outer wall in the axial direction on be arranged symmetrically with two row guiding straight rails, guiding straight rail cross sectional shape is identical with the end surface shape of fixed muffle gathering sill, and the guiding straight rail of angular adjustment bar can be made to go deep into the appropriate location of fixed muffle inside along the gathering sill of fixed muffle.
Described fixed muffle outer wall is provided with locating hole and the alignment pin of fixed angle adjusting rod, angular adjustment bar can be fixed on appropriate location.
Described driving wheel all keeps identical with the angle of the center line of main shaft, and the material of driving wheel is for having certain wearability and flexible polyurethane or elastomeric material.
Being made up of brush holder and bristle of described coating brush, brush holder one end is evenly arranged along spindle outer wall circumference, and the other end is provided with bristle, and the distance of the bristle end distance alignment of shafts is about 1.05-1.5 times of pipe radius.
Described anti-ly ram as hemispherical, material is for having certain wearability and flexible polyurethane or elastomeric material.
Described main shaft tail is provided with location transmitters.
Compared with prior art, the present invention has following beneficial effect:
(1) do not need extra power drive, can run under the axial motive force effect of only wiper in the wings, save the energy, easy to use, and avoid when transporting flammable explosive gas because of blast that electric spark causes;
(2) multilayer film, is positioned at the liquid film film again that front can be destroyed by driving wheel by last coating brush, ensures film quality;
(3) device composition is simple, the advantage such as have production and operating cost is low, easy to operate.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is Package power sectional view of the present invention;
Fig. 3 is power set partial structurtes schematic diagram of the present invention;
Fig. 4 is that the present invention applies brush operating diagram;
Fig. 5 is single the present invention film process schematic in gathering line.
Fig. 6 is two the present invention film process schematic in gathering line.
Detailed description of the invention:
As shown in Figure 1, a kind of gathering line corrosion inhibiter coating device of the present invention, mainly comprise a main shaft 1, Package power 2 and coating brush 3, the rear and front end of main shaft 1 is separately installed with anti-ram 4 and positioning disk 5, Package power 2 has two groups, the number often organizing Package power 2 is 3, respectively along main shaft 1 circumferentially, the main shaft 1 before and after two groups of Package powers 2 is all provided with coating brush 3.
As shown in Figure 2, described Package power 2 by fixed muffle 6, angular adjustment bar 7, linkage rod supporting mechanism 8 and driving wheel 9 form, and one end of fixed muffle 6 is fixed on the cylinder body outer wall of main shaft 1, is provided with angular adjustment bar 7 in the cylindrical shell of the other end; Angular adjustment bar 7 one end is embedded in fixed muffle 6, and the other end is connected with linkage rod supporting mechanism 8, and tie-bar support structure 8 end is provided with driving wheel 9.
Described fixed muffle 6 is fixed on the same cross section with the central axis of main shaft 1, angle is each other 120 °, the cylinder inboard wall of fixed muffle 6 has circumferentially been evenly arranged several gathering sills 10, fixed muffle 6 be connected with angular adjustment bar 7 side body end surface on be provided with the angle indicating dial 11 at the circumferential angle showing gathering sill 10.
As shown in Figure 3, described angular adjustment bar 7 is cylinder, its outer wall in the axial direction on be arranged symmetrically with two row guiding straight rails 12, guiding straight rail 12 cross sectional shape is identical with the end surface shape of the gathering sill 10 of fixed muffle 6, and the guiding straight rail 12 of angular adjustment bar 7 can be made to go deep into the appropriate location of fixed muffle 6 inside along the gathering sill 10 of fixed muffle 6.
The outer wall of fixed muffle 6 is provided with locating hole 15 and the alignment pin 16 of fixed angle adjusting rod 7, angular adjustment bar 7 can be fixed on appropriate location.
Described driving wheel 9 all keeps identical with the angle of the center line of main shaft 1, and the material of driving wheel 9 is for having certain wearability and flexible polyurethane or elastomeric material.
As shown in Figure 4, being made up of brush holder 13 and bristle 14 of described coating brush 3, brush holder 13 one end is evenly arranged along main shaft 1 outer wall circumference, and the other end is provided with bristle 14, and bristle 14 end-to-end distance is about 1.05-1.5 times of pipe radius from the distance at main shaft 1 center.
Operation principle of the present invention is described in detail as follows:
As shown in Figure 5, carrying out in the operation of pipeline film, first in the pipeline 18 treating film, placing a conventional wiper 19, after then the present invention being placed in conventional wiper 19, on the right side of downstream of the present invention, finally put into another conventional wiper 22.Wiper 19 and wiper 22 form an enclosure space, by corrosion inhibiter filler 20 to this enclosure space filling corrosion inhibiter 21, make corrosion inhibiter 21 be full of this enclosure space.During film operation, in pipeline 18, carry gas by rear side of conventional wiper 22, rely on gas pressure to promote coating device and walk in pipeline 18, thus start film operation.
Before film is carried out to pipeline 18, first alignment pin 16 can be extracted, pull out angular adjustment bar 7 again, the angle between driving wheel 9 and main shaft 1 axis is regulated according to institute's indexing on adjusting angle dial 11, then the appropriate location of fixed muffle 6 is turned back to, and retighten with alignment pin 16, device circumferential size and pipeline 18 internal diameter are adapted, thus meets the film needs of different tube diameters pipeline.The relative installation of guiding straight rail 12 in the gathering sill 10 of fixed muffle 6 of adjusting angle adjusting rod 7 can change the angle between the axis of driving wheel 9 and main shaft 1.When leading angle can be obtained by the scale indicated by the pointer place adjusting angle dial 11 on angular adjustment bar 7.Different axial advancement speed and the ratio of device rotary speed can be obtained by the angle changed between driving wheel 9 and the axis of main shaft 1, thus regulate the angular speed of the rotation of this device.In order to ensure each Package power 2 uniform force, in adjustment process, the angle between the driving wheel 9 of all Package powers 2 of the present invention and the axis of main shaft 1 all should be consistent.
Wiper 22 in its rear under air propels along conduit running, wiper 22 the anti-4 promotion the present invention that ram by end of the present invention in advance process move in pipeline.The effect of positioning disk 5 maintains stability of the present invention.
The present invention motion process in, travelled forward by the anti-4 promotion wipers 19 of raming of its front end or by between two wipers close corrosion inhibiter 21 liquid to dynamic wiper 19 along conduit running.
Prevent raming 4 for hemispherical, to reduce the frictional resistance between the wiper of when the present invention rotates and front and back, material adopts polyurethane or rubber simultaneously, can cushion the interaction force between the wiper of front and back.Simultaneously for ensureing the present invention smoothly by the pipeline with certain curvature, avoid the generation of blocking phenomenon, front-end of spindle is also provided with positioning disk 5.
When the present invention runs in pipeline 18, in the support and linkage rod supporting mechanism 8 of angular adjustment bar 7 spring tension acting in conjunction under, driving wheel 9 and pipeline 18 inwall keep close contact; Owing to having angle between the central axis of driving wheel 9 and the central axis of main shaft 1, now, the power between driving wheel 9 and pipeline 18 inwall can be decomposed into two component; One of them component is consistent with the axis direction of main shaft 1, and thrust unit is advanced forward, and another component thrust unit rotates around main shaft 1, and therefore driving wheel 9 againsts pipeline 18 inwall and rotates around main shaft 1, while travel forward.Driving wheel 9 drives main shaft 1 to rotate in rotation process; because coating brush 3 is fixed on main shaft 1 outer wall; therefore apply brush 3 also to rotate along main shaft 1; and then the corrosion inhibiter 21 being deposited on pipeline 18 bottom is carried to pipeline 18 top, thus at pipeline 18 inwall even application one deck corrosion inhibiter diaphragm.Main shaft 1 is hollow cylindrical configuration, and whole device volume is light, and rotary resistance is little.Rotation edge, limit of the present invention pipeline 18 advances; bristle 14 end-to-end distance of coating brush 3 is greater than the half of pipeline 18 diameter from the distance of main shaft 1; even if corrosion inhibiter 21 can not be full of pipeline like this; the corrosion inhibiter 21 be deposited on bottom pipeline 18 also can be carried to pipeline 18 top by coating brush 3; thus whole pipeline 18 inwall is all covered by corrosion inhibiter 21; form uniform diaphragm, reduce corrosion risk.
Main shaft 1 is provided with coating brush 3; in the present invention in pipeline 18 in running; the coating brush 3 being positioned at rearmost end together rotates with main shaft 1; tube wall applies corrosion inhibiter diaphragm again; effectively can prevent second group of driving wheel 9 destruction to the corrosion inhibiter diaphragm that upstream has just applied in traveling process, strengthen corrosion inhibiter film effect further.
The afterbody of main shaft 1 is provided with transmitter 17, can position the present invention, and the moment monitors the ruuning situation of the present invention in pipeline 18.
As shown in Figure 6, in order to improve film effect, by two or more coating device as between wiper 19 and wiper 22, to be coated on tube wall by more corrosion inhibiter 21, the thickness of diaphragm can be increased, extends the film time, thus improve protected effect.
Visible, applicability of the present invention is strong, even if the speed of described stream oriented device due to walking in pipeline 18 is inconsistent, when causing closed corrosion inhibiter 21 liquid to present laminar flow, also can ensure that corrosion inhibiter 21 applies effect.
Claims (9)
1. a gathering line corrosion inhibiter coating device, it is characterized in that: mainly comprise a main shaft (1), Package power (2) and coating brush (3), the cylindrical structure that main shaft (1) is inner hollow, its rear and front end is separately installed with anti-raming (4) and positioning disk (5), Package power has two groups, the number often organizing Package power (2) is 3, respectively along main shaft (1) circumferentially, the main shaft (1) before and after two groups of Package powers (2) is all provided with coating brush (3).
2. a kind of gathering line corrosion inhibiter coating device according to claim 1, it is characterized in that: described Package power (2) is by fixed muffle (6), angular adjustment bar (7), linkage rod supporting mechanism (8) and driving wheel (9) composition, one end of fixed muffle (6) is fixed on the outer wall of main shaft (1), is provided with angular adjustment bar (7) in the cylindrical shell of the other end of fixed muffle (6); Angular adjustment bar (7) one end is embedded in fixed muffle (6), and the other end is connected with linkage rod supporting mechanism (8), and tie-bar support structure (8) end is provided with driving wheel (9).
3. a kind of gathering line corrosion inhibiter coating device according to claim 2, it is characterized in that: described fixed muffle (6) is fixed on on the same cross section of the central axis of main shaft (1), mutual angle is 120 °, the cylinder inboard wall of fixed muffle (6) has circumferentially been evenly arranged several gathering sills (10), fixed muffle (6) be connected with angular adjustment bar (7) side body end surface on be provided with the angle indicating dial (11) at the circumferential angle showing gathering sill (10).
4. a kind of gathering line corrosion inhibiter coating device according to claim 2, it is characterized in that: described angular adjustment bar (7) is cylinder, its outer wall in the axial direction on be arranged symmetrically with two row guiding straight rail (12), guiding straight rail (12) cross sectional shape is identical with the end surface shape of fixed muffle (6), gathering sill (10), and the guiding straight rail (12) of angular adjustment bar (7) can be made to go deep into the inner appropriate location of fixed muffle (6) along the gathering sill (10) of fixed muffle (6).
5. a kind of gathering line corrosion inhibiter coating device according to claim 2, it is characterized in that: described fixed muffle (6) outer wall is provided with locating hole (15) and the alignment pin (16) of fixed angle adjusting rod (7), angular adjustment bar (7) can be fixed on appropriate location.
6. a kind of gathering line corrosion inhibiter coating device according to claim 2, it is characterized in that: described driving wheel (9) all keeps identical with the angle of the center line of main shaft (1), the material of driving wheel (9) is for having certain wearability and flexible polyurethane or elastomeric material.
7. a kind of gathering line corrosion inhibiter coating device according to claim 1, it is characterized in that: being made up of brush holder (13) and bristle (14) of described coating brush (3), brush holder (13) one end is evenly arranged along main shaft (1) outer wall circumference, the other end is provided with bristle (14), and bristle (14) end-to-end distance is about 1.05-1.5 doubly by the radius of film pipeline (18) from the distance at main shaft (1) center.
8. a kind of gathering line corrosion inhibiter coating device according to claim 1, is characterized in that: described anti-ram (4) are for hemispherical, and material is for having certain wearability and flexible polyurethane or elastomeric material.
9. a kind of gathering line corrosion inhibiter coating device according to claim 1, is characterized in that: the afterbody of described main shaft (1) is provided with location transmitters (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510683191.0A CN105381933B (en) | 2015-10-20 | 2015-10-20 | A kind of gathering line corrosion inhibiter coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510683191.0A CN105381933B (en) | 2015-10-20 | 2015-10-20 | A kind of gathering line corrosion inhibiter coating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105381933A true CN105381933A (en) | 2016-03-09 |
| CN105381933B CN105381933B (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510683191.0A Expired - Fee Related CN105381933B (en) | 2015-10-20 | 2015-10-20 | A kind of gathering line corrosion inhibiter coating device |
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| CN (1) | CN105381933B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106670001A (en) * | 2016-09-07 | 2017-05-17 | 中国神华能源股份有限公司 | Nozzle assembly |
| CN107335586A (en) * | 2017-08-25 | 2017-11-10 | 广州奇达瑞盛环保科技有限公司 | A kind of environmentally friendly powder coating device |
| CN108262220A (en) * | 2018-04-18 | 2018-07-10 | 顾金超 | A kind of inner wall of the pipe glue spreading apparatus |
| CN109226126A (en) * | 2018-10-26 | 2019-01-18 | 新昌县奔力机械有限公司 | A kind of pipeline block clearing, derusting, scale removal mechanical device |
| 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 |
| CN112387569A (en) * | 2020-11-16 | 2021-02-23 | 柳州市中晶科技有限公司 | Pipeline inner wall spraying method and spraying robot |
| CN112620016A (en) * | 2019-09-24 | 2021-04-09 | 中国石油化工股份有限公司 | Film coating device and method for sour gas pipeline of sulfur-containing gas field |
| CN114260125A (en) * | 2021-11-25 | 2022-04-01 | 江苏杰瑞钢结构有限公司 | Petroleum pipeline painting device for full-automatic spraying of protective film coating |
| CN117139071A (en) * | 2023-10-31 | 2023-12-01 | 南通好的防腐装备有限公司 | Inner wall anti-corrosion raw material plastic coating device and method for petroleum pipeline processing |
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| US3525111A (en) * | 1967-06-28 | 1970-08-25 | Paul Von Arx | Apparatus for treating the inner wall surface of a generally cylindrical duct |
| US3885521A (en) * | 1972-05-24 | 1975-05-27 | Arx Paul Von | Apparatus for coating the inner wall surface of a duct |
| US20070174983A1 (en) * | 1999-03-29 | 2007-08-02 | Steve Smith | 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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Patent Citations (5)
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| US3525111A (en) * | 1967-06-28 | 1970-08-25 | Paul Von Arx | Apparatus for treating the inner wall surface of a generally cylindrical duct |
| US3885521A (en) * | 1972-05-24 | 1975-05-27 | Arx Paul Von | Apparatus for coating the inner wall surface of a duct |
| US20070174983A1 (en) * | 1999-03-29 | 2007-08-02 | Steve Smith | 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 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106670001B (en) * | 2016-09-07 | 2019-04-05 | 中国神华能源股份有限公司 | Nozzle assembly |
| CN106670001A (en) * | 2016-09-07 | 2017-05-17 | 中国神华能源股份有限公司 | Nozzle assembly |
| CN107335586A (en) * | 2017-08-25 | 2017-11-10 | 广州奇达瑞盛环保科技有限公司 | A kind of environmentally friendly powder coating device |
| CN107335586B (en) * | 2017-08-25 | 2018-11-20 | 泰兴市智谷科技孵化器中心 | A kind of environmental protection powder coating device |
| CN108262220A (en) * | 2018-04-18 | 2018-07-10 | 顾金超 | A kind of inner wall of the pipe glue spreading apparatus |
| CN109226126A (en) * | 2018-10-26 | 2019-01-18 | 新昌县奔力机械有限公司 | A kind of pipeline block clearing, derusting, scale removal mechanical device |
| CN109226126B (en) * | 2018-10-26 | 2023-11-24 | 黑龙江龙唐电力投资有限公司 | Pipeline is with clear stifled, rust cleaning, scale removal mechanical device |
| CN112620016A (en) * | 2019-09-24 | 2021-04-09 | 中国石油化工股份有限公司 | Film coating device and method for sour gas pipeline of sulfur-containing gas field |
| 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 |
| CN112387569A (en) * | 2020-11-16 | 2021-02-23 | 柳州市中晶科技有限公司 | Pipeline inner wall spraying method and spraying robot |
| CN114260125A (en) * | 2021-11-25 | 2022-04-01 | 江苏杰瑞钢结构有限公司 | Petroleum pipeline painting device for full-automatic spraying of protective film coating |
| CN117139071A (en) * | 2023-10-31 | 2023-12-01 | 南通好的防腐装备有限公司 | Inner wall anti-corrosion raw material plastic coating device and method for petroleum pipeline processing |
| CN117139071B (en) * | 2023-10-31 | 2024-01-26 | 南通好的防腐装备有限公司 | Inner wall anti-corrosion raw material plastic coating device and method for petroleum pipeline processing |
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| CN105381933B (en) | 2016-07-06 |
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