CN104511461A - Anti-blockage air injection type jet pipe cleaner - Google Patents
Anti-blockage air injection type jet pipe cleaner Download PDFInfo
- Publication number
- CN104511461A CN104511461A CN201310451023.XA CN201310451023A CN104511461A CN 104511461 A CN104511461 A CN 104511461A CN 201310451023 A CN201310451023 A CN 201310451023A CN 104511461 A CN104511461 A CN 104511461A
- Authority
- CN
- China
- Prior art keywords
- shaped valve
- pig body
- flow tube
- tube cleaner
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
- B08B9/0558—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles with additional jet means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
- B08B9/0557—Pigs with rings shaped cleaning members, e.g. cup shaped pigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
- B08B2209/04—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes
- B08B2209/053—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes being moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B2209/055—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes being moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses an anti-blockage air injection type jet pipe cleaner. The pipe cleaner comprises a pipe cleaner body with a hollow structure, wherein the outer wall of the pipe cleaner body is provided with a plurality of cups; space is arranged between every two cups; one end of the pipe cleaner body is provided with a conical hole; a T-shaped valve is arranged in the cavity of the pipe cleaner body; a supporting plate is of a hollow structure; a T-shaped end of the T-shaped valve is arranged at the conical hole end of the pipe cleaner body and is larger than the internal diameter of the conical hole; a supporting rod close to the T-shaped end of the T-shaped valve is a supporting rod a; the supporting rod a is provided with a convex edge; a free end of the convex edge is connected with the T-shaped end of the T-shaped valve; a supporting rod close to the other end of the T-shaped valve is a supporting rod b; a spring is arranged between the supporting rod b and the other end of the T-shaped valve. The anti-blockage air injection type jet pipe cleaner has the advantages of simple structure, convenience in part disassembly and convenience in cleaning and repair; the parts are concise, so the phenomenon can be excellently prevented, and the safety for pipe cleaning of a submarine pipeline is improved.
Description
Technical field
The present invention relates to a kind of tube cleaning removed for sea-bottom natural gas condensed liquid pipeline hydrops, be specifically related to the jet-propelled jet flow tube cleaner of a kind of Anti-blockage.
Background technology
After sea-bottom natural gas condensed liquid pipeline longtime running, can, at pipeline inner accumulated condensed liquid, pipeline flow area be reduced, and then cause lifting difficulty, energy loss increase, also may generate Hydrate Plugging pipeline under given conditions.The method of the regular pigging of usual employing solves condensed liquid accumulation problems.Tradition wiper by leather cup or ball seal, back pressure is raised, and then rely on front and back pressure reduction to promote its motion and carry out pigging.Due to the sealing of front and back, wiper speed is suitable with air velocity, causes pigging excessive velocities, easily causes damage to pipeline and wiper self; Large quantity of fluid, at wiper accumulated downstream, especially changing violent by the speed of service, pressure during fluctuating pipeline, causes system cloud gray model extremely unstable; Wiper also very easily causes serious slug flow in progradation, brings impact to the safe and stable operation of downstream treatment systems, and a large amount of liquid at high speed arrives the limited slug catcher of offshore platform disposal ability, very easily causes trap to transship, and impact is normally produced.
Summary of the invention
The object of this invention is to provide the jet-propelled jet flow tube cleaner of a kind of Anti-blockage, the present invention can not only reduce the unstability gathered, reduce wiper operation of liquid in pigging process, the blocking that can also realize wiper while bypass pigging is restarted, and reduces the risk of pigging.
The jet-propelled jet flow tube cleaner of a kind of Anti-blockage provided by the present invention, comprises the pig body that has hollow-core construction;
The outer wall of described pig body is provided with several leather cups, is provided with spacing between described leather cup;
One end of described pig body is provided with bellmouth;
Be provided with a T-shaped valve in the cavity of described pig body, described T-shaped valve is connected with described pig body by least 2 gripper shoes, and described T-shaped valve can move along the length direction of described pig body; Described gripper shoe is engraved structure; The T-shaped end of described T-shaped valve is located at the taper nose end of described pig body, and is greater than the internal diameter of described bellmouth;
Support bar near the T-shaped end of described T-shaped valve is support bar a, and described support bar a is provided with flange, and the free-end of described flange is connected with the T-shaped end of described T-shaped valve;
Support bar near the other end of described T-shaped valve is support bar b, is provided with spring between the other end of described support bar b and described T-shaped valve.
In the jet-propelled jet flow tube cleaner of above-mentioned Anti-blockage, the outer wall of described pig body is also provided with flow guiding disc, between described flow guiding disc and described leather cup and described leather cup, is provided with separation flange.
In the jet-propelled jet flow tube cleaner of above-mentioned Anti-blockage, described flow guiding disc and described leather cup are all fixed on described pig body by fastening bolt.
In the jet-propelled jet flow tube cleaner of above-mentioned Anti-blockage, described fastening bolt matches with assembly flange or mounting flange the connection realized described flow guiding disc and described leather cup.
In the jet-propelled jet flow tube cleaner of above-mentioned Anti-blockage, the tapering of described bellmouth can be 30 ° ~ 60 °, is beneficial to jet-impingement.
In the jet-propelled jet flow tube cleaner of above-mentioned Anti-blockage, the outer wall of described pig body is provided with floor, enables described pipe device body keep certain intensity.
In the jet-propelled jet flow tube cleaner of above-mentioned Anti-blockage, the spacing between described gripper shoe a and described gripper shoe b is not less than the internal diameter of the described pig body of 0.5 times.
The present invention is on the basis of traditional wiper, arrange " bypass passageways ", namely described T-shaped valve, form the passage with certain bypass rate between described pig body and described gripper shoe a, while this wiper is advanced in the duct, by the jet gas-liquid two-phase flow pattern controlling wiper front end of bypass, control the distribution of wiper accumulated downstream liquid, eliminate the pressure big ups and downs that traditional wiper pigging brings, avoid the formation of the problems such as serious slug flow, terminal catcher overload and fluctuation of service, ensure that pigging safety and steady carries out.
When using wiper of the present invention, if there is blocking in pipeline, before and after wiper, pressure reduction can continue to increase, the T-shaped valve setting in motion when valve pressure is enough to overcome described pressing force of the spring, until contact with bellmouth, complete shutoff bypass passageways, cause wiper back pressure to continue to increase, finally realize restarting of wiper.
The jet-propelled jet flow tube cleaner of Anti-blockage provided by the invention, structure is simple, part convenient disassembly, is convenient to cleaning maintenance; Often impact shock is subject in wiper pigging process, impact shock in gas transmission line is particularly violent, if wiper structure is too complicated, probably cause Local Members to loosen finally come off so that be trapped in pipeline section, pigging is obstructed, simplifying of parts of the present invention, can be good at the generation preventing this situation, improves the security of submarine pipeline pigging.
Accompanying drawing explanation
Fig. 1 is the sectional view of the jet-propelled jet flow tube cleaner of Anti-blockage of the present invention.
Fig. 2 is A-A sectional view and B-B sectional view in Fig. 1, and wherein Fig. 2 (a) is A-A sectional view, and Fig. 2 (b) is B-B sectional view.
In figure, each mark is as follows:
1 pig body, 2 fastening bolts, 3 assembly flanges, 4 flow guiding discs, 5 isolation flanges, 6 leather cups, 7 floors, 8 mounting flanges, 9 gripper shoe a, 10 gripper shoe b, 11T type valve, 12 springs, 13 bellmouths.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described, but the present invention is not limited to embodiment.
As shown in Figure 1, the jet-propelled jet flow tube cleaner of Anti-blockage provided by the invention comprises the pig body 1 that has hollow-core construction, the outer wall of this pig body 1 is provided with 2 flow guiding discs 4 and 4 leather cups 6, wherein every 1 is 1 group to flow table 4 and every 2 leather cups 6, and flow guiding disc 4 is arranged at the front portion of leather cup 6, flow guiding disc 4 can be dredged wiper and run, and prevents wiper because of the blocking of mechanical factor in pipeline.
Flow guiding disc 4 and leather cup 6 are all by fastening bolt 2 and assembly flange 3(mounting flange 8) be fixed on the outer wall of pig body 1, and all separated by separation flange 5 between flow guiding disc 4 and leather cup 6 and between leather cup 6.When selecting leather cup in the process of practical application, leather cup be made will to have certain magnitude of interference relative to in-service pipeline internal diameter, be generally 2% ~ 5%, the sealing between wiper and tube wall can be realized, propelling movement cleaning is carried out to hydrops in pipeline and solid impurity.In addition, the outer wall of pig body 1 is provided with floor 7, to strengthen its intensity.
Be provided with bellmouth 13 in one end of pig body 1, its tapering is 30 °, is beneficial to jet-impingement.
In the cavity of pig body 1, be provided with a T-shaped valve 11, this T-shaped valve 11 is connected with pig body 1 with gripper shoe b10 by gripper shoe a9, and this T-shaped valve 11 can move along the length direction of pig body 1; As shown in Figure 2, gripper shoe a9 and gripper shoe b10 is engraved structure, to provide the bypass passageways of air-flow.Spacing between gripper shoe a9 and gripper shoe b10 is not less than the internal diameter of the pig body 1 of 0.5 times.
The T-shaped end of T-shaped valve 11 is located at the taper nose end of pig body 1, and is greater than the internal diameter of bellmouth 13, can seal bellmouth 13 to make T-shaped valve 11.
Support bar a9 is provided with flange (not marking in figure), and the free-end of this flange is connected with the T-shaped end of T-shaped valve 11, thus at T-shaped valve 11, form the passage with certain bypass rate between pig body 1 and gripper shoe a9.Be provided with spring 12 between the other end of support bar b10 and T-shaped valve 11, during use, this spring 12 has certain amount of contraction, realizes certain stressed of T-shaped valve 11.
In the jet-propelled jet flow tube cleaner of above-mentioned Anti-blockage, can adjusting in the scope of 30 ° ~ 60 ° of bellmouth 13, the leather cup of setting and the number of gripper shoe can adjust according to actual needs.
The jet-propelled jet flow tube cleaner of Anti-blockage provided by the invention, while advancing in the duct, can be jet by bypass, wiper speed is reduced, and reduces the destruction to pipeline coatings, equipment and wiper self; The shearing rolling action of bypass flow controls the gas-liquid two-phase flow pattern of wiper front end, make the liquid distribution of accumulated downstream on the pipeline of longer distance, avoid the accumulation of liquid in progradation, reduce pressure oscillation and avoid the generation of serious slug flow, ensureing steadily carrying out of pigging; Bypass makes hydrops incoming terminal trap successively, thus reduces required trap volume, meets the feature that offshore platform device is compact, improves economic benefit.
In the jet-propelled jet flow tube cleaner of Anti-blockage provided by the invention, the spring 12 arranged between T-shaped valve 11 and gripper shoe b10, its thrust sets according to different pipeline operating mode, when wiper is run in the pressure differential range of nominal situation, T-shaped valve 11 is in static opening, and wiper keeps constant bypass rate to carry out pigging.But when there is blocking due to excessive etc. the reason of the accumulation of solid impurity, hydrops amount in wiper, front and back pressure reduction can continue to increase, when a certain particular value of arrival, when valve pressure is enough to overcome holddown spring thrust, valve setting in motion, and constantly move with the increase of pressure reduction, until contact with conical surface body, complete shutoff bypass passageways, cause pipeline continue build the pressure, to overcome the resistance of motion, finally realize restarting of wiper.
Claims (7)
1. the jet-propelled jet flow tube cleaner of Anti-blockage, is characterized in that: described jet flow tube cleaner comprises the pig body that has hollow-core construction;
The outer wall of described pig body is provided with several leather cups, is provided with spacing between described leather cup;
One end of described pig body is provided with bellmouth;
Be provided with a T-shaped valve in the cavity of described pig body, described T-shaped valve is connected with described pig body by least 2 gripper shoes, and described T-shaped valve can move along the length direction of described pig body; Described gripper shoe is engraved structure; The T-shaped end of described T-shaped valve is located at the taper nose end of described pig body, and is greater than the internal diameter of described bellmouth;
Support bar near the T-shaped end of described T-shaped valve is support bar a, and described support bar a is provided with flange, and the free-end of described flange is connected with the T-shaped end of described T-shaped valve;
Support bar near the other end of described T-shaped valve is support bar b, is provided with spring between the other end of described support bar b and described T-shaped valve.
2. jet flow tube cleaner according to claim 1, is characterized in that: the outer wall of described pig body is also provided with flow guiding disc, is provided with separation flange between described flow guiding disc and described leather cup and described leather cup.
3. jet flow tube cleaner according to claim 2, is characterized in that: described flow guiding disc and described leather cup are all fixed on described pig body by fastening bolt.
4. jet flow tube cleaner according to claim 3, is characterized in that: described fastening bolt matches with assembly flange or mounting flange the connection realized described flow guiding disc and described leather cup.
5. the jet flow tube cleaner according to any one of claim 1-4, is characterized in that: the tapering of described bellmouth is 30 °-60 °.
6. the jet flow tube cleaner according to any one of claim 1-5, is characterized in that: the outer wall of described pig body is provided with floor.
7. the jet flow tube cleaner according to any one of claim 1-6, is characterized in that: the spacing between described gripper shoe a and described gripper shoe b is not less than the internal diameter of the described pig body of 0.5 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310451023.XA CN104511461A (en) | 2013-09-27 | 2013-09-27 | Anti-blockage air injection type jet pipe cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310451023.XA CN104511461A (en) | 2013-09-27 | 2013-09-27 | Anti-blockage air injection type jet pipe cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104511461A true CN104511461A (en) | 2015-04-15 |
Family
ID=52787670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310451023.XA Pending CN104511461A (en) | 2013-09-27 | 2013-09-27 | Anti-blockage air injection type jet pipe cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104511461A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268707A (en) * | 2015-11-25 | 2016-01-27 | 广西盛天水泥制品有限公司 | Dust removal filter drum cleaning device |
| CN106737228A (en) * | 2016-12-30 | 2017-05-31 | 陕西天元石化建设工程有限公司 | A kind of steel pipe inner wall sand blasting unit and sand blasting process |
| CN107051993A (en) * | 2017-06-14 | 2017-08-18 | 大庆利恒科技开发有限公司 | A kind of variable caliber casing scraper |
| CN109513699A (en) * | 2018-11-14 | 2019-03-26 | 中国石油大学(华东) | A kind of oil delivering pipe road is from de-plugging pipe cleaner |
| CN109759400A (en) * | 2019-02-26 | 2019-05-17 | 中国石油大学(华东) | Blocked pipeline pipe cleaner is self solved based on shape-memory polymer sealing cup |
| CN110293104A (en) * | 2019-07-23 | 2019-10-01 | 泸州职业技术学院 | A kind of rotating-spray pipe cleaner with check valve |
| CN111871987A (en) * | 2020-08-03 | 2020-11-03 | 西南石油大学 | Rotary jet flow pipe cleaner |
| CN112916534A (en) * | 2021-04-06 | 2021-06-08 | 北京瑞鹰格管道科技有限公司 | Self-purging type multifunctional pipe cleaner |
| CN113019772A (en) * | 2021-04-21 | 2021-06-25 | 福建工程学院 | Jet flow bead for automobile paint coating quick color changing system and control method |
| CN114700331A (en) * | 2022-04-06 | 2022-07-05 | 西南石油大学 | Water-absorbing jet flow pipe cleaner for natural gas pipeline |
| CN114769240A (en) * | 2022-05-17 | 2022-07-22 | 宜宾学院 | Film pressure-sensitive type pipe cleaner with rear transmission |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3495546A (en) * | 1967-11-03 | 1970-02-17 | American Mach & Foundry | Speed control device for pipeline inspection apparatus |
| RU2086315C1 (en) * | 1994-05-31 | 1997-08-10 | Научно-производственное объединение "Гидротрубопровод" | Device for cleaning inner surfaces of pipes |
| CN2488609Y (en) * | 2001-07-27 | 2002-05-01 | 中国石油天然气管道局管道技术公司 | Pipeline cleaner for protecting coat layer |
| CN2516278Y (en) * | 2002-01-04 | 2002-10-16 | 常州市万向科技有限公司 | Pipe cleaning apparatus with stretch disk |
| CN2638870Y (en) * | 2003-07-04 | 2004-09-08 | 濮阳市中原锐弛清洗防腐有限公司 | Automatic deblock pipe cleaning apparatus |
| CN2723062Y (en) * | 2004-08-27 | 2005-09-07 | 大庆油田建设集团 | Laminated sheet type pipe cleaning device |
| US7000280B1 (en) * | 2003-06-02 | 2006-02-21 | Knapp Kenneth M | Aggressive pipeline pig |
| US20090199873A1 (en) * | 2008-02-08 | 2009-08-13 | Tdw Delaware, Inc. | Vortex Inhibitor Dispersal Pig |
| TW201003027A (en) * | 2008-07-03 | 2010-01-16 | Tdw Delaware Inc | Speed regulated pipeline pig |
| CN203508528U (en) * | 2013-09-27 | 2014-04-02 | 中国海洋石油总公司 | Anti-blocking air spraying type jet flow pipe cleaning device |
-
2013
- 2013-09-27 CN CN201310451023.XA patent/CN104511461A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3495546A (en) * | 1967-11-03 | 1970-02-17 | American Mach & Foundry | Speed control device for pipeline inspection apparatus |
| RU2086315C1 (en) * | 1994-05-31 | 1997-08-10 | Научно-производственное объединение "Гидротрубопровод" | Device for cleaning inner surfaces of pipes |
| CN2488609Y (en) * | 2001-07-27 | 2002-05-01 | 中国石油天然气管道局管道技术公司 | Pipeline cleaner for protecting coat layer |
| CN2516278Y (en) * | 2002-01-04 | 2002-10-16 | 常州市万向科技有限公司 | Pipe cleaning apparatus with stretch disk |
| US7000280B1 (en) * | 2003-06-02 | 2006-02-21 | Knapp Kenneth M | Aggressive pipeline pig |
| CN2638870Y (en) * | 2003-07-04 | 2004-09-08 | 濮阳市中原锐弛清洗防腐有限公司 | Automatic deblock pipe cleaning apparatus |
| CN2723062Y (en) * | 2004-08-27 | 2005-09-07 | 大庆油田建设集团 | Laminated sheet type pipe cleaning device |
| US20090199873A1 (en) * | 2008-02-08 | 2009-08-13 | Tdw Delaware, Inc. | Vortex Inhibitor Dispersal Pig |
| TW201003027A (en) * | 2008-07-03 | 2010-01-16 | Tdw Delaware Inc | Speed regulated pipeline pig |
| CN203508528U (en) * | 2013-09-27 | 2014-04-02 | 中国海洋石油总公司 | Anti-blocking air spraying type jet flow pipe cleaning device |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268707A (en) * | 2015-11-25 | 2016-01-27 | 广西盛天水泥制品有限公司 | Dust removal filter drum cleaning device |
| CN106737228A (en) * | 2016-12-30 | 2017-05-31 | 陕西天元石化建设工程有限公司 | A kind of steel pipe inner wall sand blasting unit and sand blasting process |
| CN107051993A (en) * | 2017-06-14 | 2017-08-18 | 大庆利恒科技开发有限公司 | A kind of variable caliber casing scraper |
| CN109513699A (en) * | 2018-11-14 | 2019-03-26 | 中国石油大学(华东) | A kind of oil delivering pipe road is from de-plugging pipe cleaner |
| CN109759400B (en) * | 2019-02-26 | 2022-02-08 | 中国石油大学(华东) | Self-unblocking pipeline cleaner based on shape memory polymer sealing leather cup |
| CN109759400A (en) * | 2019-02-26 | 2019-05-17 | 中国石油大学(华东) | Blocked pipeline pipe cleaner is self solved based on shape-memory polymer sealing cup |
| CN110293104A (en) * | 2019-07-23 | 2019-10-01 | 泸州职业技术学院 | A kind of rotating-spray pipe cleaner with check valve |
| CN111871987A (en) * | 2020-08-03 | 2020-11-03 | 西南石油大学 | Rotary jet flow pipe cleaner |
| CN113441492A (en) * | 2020-08-03 | 2021-09-28 | 西南石油大学 | Rotary jet flow pipe cleaner |
| CN112916534A (en) * | 2021-04-06 | 2021-06-08 | 北京瑞鹰格管道科技有限公司 | Self-purging type multifunctional pipe cleaner |
| CN113019772A (en) * | 2021-04-21 | 2021-06-25 | 福建工程学院 | Jet flow bead for automobile paint coating quick color changing system and control method |
| CN114700331A (en) * | 2022-04-06 | 2022-07-05 | 西南石油大学 | Water-absorbing jet flow pipe cleaner for natural gas pipeline |
| CN114700331B (en) * | 2022-04-06 | 2023-03-14 | 西南石油大学 | Water-absorbing jet flow pipe cleaner for natural gas pipeline |
| CN114769240A (en) * | 2022-05-17 | 2022-07-22 | 宜宾学院 | Film pressure-sensitive type pipe cleaner with rear transmission |
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Application publication date: 20150415 |
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