CN109013583A - A kind of PIG high resiliency pressurization pneumatic bomb cleaning technique - Google Patents
A kind of PIG high resiliency pressurization pneumatic bomb cleaning technique Download PDFInfo
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- CN109013583A CN109013583A CN201710451072.1A CN201710451072A CN109013583A CN 109013583 A CN109013583 A CN 109013583A CN 201710451072 A CN201710451072 A CN 201710451072A CN 109013583 A CN109013583 A CN 109013583A
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- Prior art keywords
- pig
- cleaning
- valve
- pipeline
- trunk line
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- 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
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
PIG high resiliency is pressurized pneumatic bomb cleaning technique, in conjunction with PIG cleaning and chemical cleaning, successively carries out PIG cleaning and chemical cleaning to pipeline to be washed.Present invention combination PIG cleaning and chemical cleaning, realize the high efficiency, low cost cleaning of pipeline, wide adaptability, it is suitable for the cleaning to super-long pipeline, multilayer cleaning way can be used, using PIG cleaning cleaning chemical agent, rinse water or air can be filled between two PIG respectively during pipeline cleaning, it is respectively completed cleaning, passivation, drying process, greatly simplify cleaning process, coming into operation for a large amount of drug and equipment is saved, it economically more saves more environmentally-friendly, greatly shortens the duration, while saving a large amount of gas purging expense.
Description
Technical field
The present invention relates to pipeline cleaning technical fields, and in particular to a kind of PIG high resiliency pressurization pneumatic bomb cleaning technique.
Background technique
PIG cleaning technique is the technology that pipeline protection, maintenance are extended to by anti-corrosion profession.Started from for 20th century 60 years
In generation, is mainly used for inner surface of pipeline derusting, scale removal, dehydration, drying and coating, is prevention and the good skill for removing pipeline scale
Art.The technological equipment is simple, cleaning when need not stopping transportation, non-environmental-pollution corrosion-free to pipeline, it is easy to operate, be suitable for as normal
Rule operation periodically can remove dirt and most of grease stain, but the technology category physical cleaning into PIG cleaning technique, it cannot thoroughly be removed
Row.PIG is Polyurethane cylinder pipe cleaner, although falling grease stain, it is necessary to thorough oil removing is carried out to pipeline using nontoxic degreaser, if
By cleaning agent be full of pipeline, cost is too high, also need not, how to realize pipeline high efficiency, low cost cleaning become industry emphasis grind
The project studied carefully.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of PIG high resiliency to be pressurized pneumatic bomb cleaning technique.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of PIG high resiliency pressurization pneumatic bomb cleaning technique, it is successive to pipeline to be washed in conjunction with PIG cleaning and chemical cleaning
PIG cleaning and chemical cleaning are carried out, the specific process steps are as follows:
(1) PIG is cleaned
(1) detection pipeline trend and position, elbow type and position, whether there is or not undergauge, deformation and the curved complicated feelings of straight cutting for investigation
Condition；
(2) back power of the operation medium of former pipeline as PIG is used, PIG operation is pushed, realizes the cleaning that do not stop production, clearly
All branch line valves are closed before washing, close outlet valve, inlet valve and drain valve on launching tube, and Trunk Line valve is open shape
State, pipeline, which operates normally, to supply water；
(3) launching tube fast-assembling blind plate is opened, PIG is launched, closes fast-assembling blind plate；
(4) inlet valve is opened, when the pressure gauge on launching tube has pressure display, outlet valve is slowly opened, closes supervisor
Line valve, driving PIG enter pipeline；
(5) after indicator instruction PIG enters Trunk Line, Trunk Line valve is opened, closes inlet valve and outlet valve；
(6) special messenger observes and records pressure gauge instruction, operating condition of the analysis PIG in pipeline, along monitoring and receiving end
PIG by refer to instrument, monitor PIG operating condition；
(7) at 100 meters from receiving end by indicator indicate PIG pass through when, immediately open receiving barrel on import
Valve, outlet valve, drain valve close Trunk Line valve, dirt are discharged in cesspool；
(8) after PIG enters receiving barrel, receiving end Trunk Line valve is opened, the inlet valve and outlet valve of receiving barrel are closed；
(9) fast-assembling blind plate is opened, PIG is taken out, is then shut off fast-assembling blind plate.
(10) step (3)~(9) are repeated, the dispensing and reception of next stage PIG are carried out；
(2) chemical cleaning
(1) PIG launching tube is removed at pipeline beginning, dosing cylinder is installed, in end of line installation chemical agent recycling dress
It sets；
(2) it is put into sealing PIG in chemical feed pipe two sides, cleaning agent is pumped into the pipeline section among two PIG with pump truck, certain
Under pressure effect, first sealing PIG can be moved forwards with the injection of cleaning agent；
(3) after all squeezing into cleaning agent in pipeline by design flow, dosing tube valve is closed, starts pressure fan, will clean
Agent tubing string is squeezed into Trunk Line；After indicating that subsequent sealing PIG does enter into Trunk Line by indicator, stop pressure fan, closes
Valve, opens Trunk Line valve, and the operating pressure of pipeline itself pushes cleaning agent column to move forwards；
(4) PIG placed along monitors the running position of cleaning agent tubing string by indicator all-the-way tracking；
(5) it when PIG passes through indicator front end PIG from 50 meters of recyclable device, closes below PIG receiving barrel on Trunk Line
Water is discharged in blowdown hole rapidly by block valve；After having cleaning agent to show in blowdown hole, cleaning agent is discharged in tank car；
(6) after chemical cleaning, clean pipeline 2 times or more, remove the Liquid Residue in pipeline.
Present invention combination PIG cleaning and chemical cleaning, realize the high efficiency, low cost cleaning of pipeline, and wide adaptability is suitble to
In the cleaning to super-long pipeline, multilayer cleaning way can be used, it can be during pipeline cleaning respectively two using PIG cleaning
It is filled with cleaning chemical agent, rinse water or air between a PIG, is respectively completed cleaning, rinsing or drying process, makes scavenger
Skill greatly simplifies, and has saved a large amount of drug and equipment, has economically more saved.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is PIG cleaning schematic diagram of the present invention；
Fig. 2 is chemical cleaning schematic diagram of the present invention.
Specific embodiment
As depicted in figs. 1 and 2, a kind of PIG high resiliency is pressurized pneumatic bomb cleaning technique, in conjunction with PIG cleaning and chemical cleaning,
PIG cleaning and chemical cleaning are successively carried out to pipeline to be washed, the specific process steps are as follows:
(1) PIG is cleaned
(1) detection pipeline trend and position, elbow type and position, whether there is or not undergauge, deformation and the curved complicated feelings of straight cutting for investigation
Condition；
(2) back power of the operation medium of former pipeline as PIG is used, PIG operation is pushed, realizes the cleaning that do not stop production, clearly
All branch line valves are closed before washing, close outlet valve V3, inlet valve V2 and drain valve V4 on launching tube, and Trunk Line valve V1 is
Opening state, pipeline, which operates normally, to supply water；
(3) launching tube fast-assembling blind plate is opened, PIG is launched, closes fast-assembling blind plate；
(4) inlet valve V2 is opened, when the pressure gauge on launching tube has pressure display, outlet valve V3 is slowly opened, closes
Trunk Line valve V1, driving PIG enter pipeline；
(5) after indicator instruction PIG enters Trunk Line, Trunk Line valve V1 is opened, closes inlet valve V2 and outlet valve V3；
(6) special messenger observes and records pressure gauge instruction, operating condition of the analysis PIG in pipeline, along monitoring and receiving end
PIG by refer to instrument, monitor PIG operating condition；
(7) at 100 meters from receiving end by indicator indicate PIG pass through when, immediately open receiving barrel on import
Valve V7, outlet valve V6, drain valve V8 close Trunk Line valve V5, dirt are discharged in cesspool, guarantee that sewage does not enter in this way
In Trunk Line, and it can be reduced the discharge amount of water；
(8) after PIG enters receiving barrel, receiving end Trunk Line valve V5 is opened, the inlet valve V7 of receiving barrel is closed, exported
Valve V6；
(9) fast-assembling blind plate is opened, PIG is taken out, is then shut off fast-assembling blind plate.
(10) step (3)~(9) are repeated, the dispensing and reception of next stage PIG are carried out；
(2) chemical cleaning
(1) PIG launching tube is removed at pipeline beginning, dosing cylinder is installed, in end of line installation chemical agent recycling dress
It sets；
(2) it is put into sealing PIG in chemical feed pipe two sides, cleaning agent is pumped into the pipeline section among two PIG with pump truck, certain
Under pressure effect, first sealing PIG can be moved forwards with the injection of cleaning agent；
(3) after all squeezing into cleaning agent in pipeline by design flow, dosing tube valve is closed, starts pressure fan, will clean
Agent tubing string is squeezed into Trunk Line；After indicating that subsequent sealing PIG does enter into Trunk Line by indicator, stop pressure fan, closes
Valve V3, opens Trunk Line valve V1, and the operating pressure of pipeline itself pushes cleaning agent column to move forwards；
(4) PIG placed along monitors the running position of cleaning agent tubing string by indicator all-the-way tracking；
(5) it when PIG passes through indicator front end PIG from 50 meters of recyclable device, closes below PIG receiving barrel on Trunk Line
Block valve opens rapidly valve A1 and A2, and water is discharged in blowdown hole；After having cleaning agent to show in blowdown hole, A3 valve is opened, is closed
A2 valve, cleaning agent is discharged in tank car；
(6) after chemical cleaning, clean pipeline 2 times or more, remove the Liquid Residue in pipeline.
Claims (1)
1. a kind of PIG high resiliency is pressurized pneumatic bomb cleaning technique, it is characterized in that in conjunction with PIG cleaning and chemical cleaning, to pipe to be washed
Road successively carries out PIG cleaning and chemical cleaning, the specific process steps are as follows:
(1) PIG is cleaned
(1) detection pipeline trend and position, elbow type and position, whether there is or not undergauge, deformation and the curved complex situations of straight cutting for investigation；
(2) back power of the operation medium of former pipeline as PIG is used, PIG operation is pushed, the cleaning that do not stop production is realized, before cleaning
All branch line valves are closed, outlet valve, inlet valve and drain valve on launching tube are closed, Trunk Line valve is in an open state, and is managed
Line, which operates normally, to supply water；
(3) launching tube fast-assembling blind plate is opened, PIG is launched, closes fast-assembling blind plate；
(4) inlet valve is opened, when the pressure gauge on launching tube has pressure display, outlet valve is slowly opened, closes Trunk Line valve,
Driving PIG enters pipeline；
(5) after indicator instruction PIG enters Trunk Line, Trunk Line valve is opened, closes inlet valve and outlet valve；
(6) special messenger observes and records pressure gauge instruction, analyzes PIG of the PIG along the operating condition of pipeline, monitoring with receiving end
By referring to instrument, PIG operating condition is monitored；
(7) at 100 meters from receiving end by indicator indicate PIG pass through when, immediately open receiving barrel on inlet valve, out
Mouth valve, drain valve close Trunk Line valve, dirt are discharged in cesspool；
(8) after PIG enters receiving barrel, receiving end Trunk Line valve is opened, the inlet valve and outlet valve of receiving barrel are closed；
(9) fast-assembling blind plate is opened, PIG is taken out, is then shut off fast-assembling blind plate.
(10) step (3)~(9) are repeated, the dispensing and reception of next stage PIG are carried out；
(2) chemical cleaning
(1) PIG launching tube is removed at pipeline beginning, dosing cylinder is installed, chemical agent recyclable device is installed in end of line；
(2) it is put into sealing PIG in chemical feed pipe two sides, cleaning agent is pumped into the pipeline section among two PIG with pump truck, in certain pressure
Under effect, first sealing PIG can be moved forwards with the injection of cleaning agent；
(3) after all squeezing into cleaning agent in pipeline by design flow, dosing tube valve is closed, starts pressure fan, by cleaning agent pipe
Column is squeezed into Trunk Line；After indicating that subsequent sealing PIG does enter into Trunk Line by indicator, stop pressure fan, close valve,
Trunk Line valve is opened, the operating pressure of pipeline itself pushes cleaning agent column to move forwards；
(4) PIG placed along monitors the running position of cleaning agent tubing string by indicator all-the-way tracking；
(5) when PIG passes through indicator front end PIG from 50 meters of recyclable device, the truncation below PIG receiving barrel on Trunk Line is closed
Water is discharged in blowdown hole rapidly by valve；After having cleaning agent to show in blowdown hole, cleaning agent is discharged in tank car；
(6) after chemical cleaning, clean pipeline 2 times or more, remove the Liquid Residue in pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710451072.1A CN109013583A (en) | 2017-06-12 | 2017-06-12 | A kind of PIG high resiliency pressurization pneumatic bomb cleaning technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710451072.1A CN109013583A (en) | 2017-06-12 | 2017-06-12 | A kind of PIG high resiliency pressurization pneumatic bomb cleaning technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109013583A true CN109013583A (en) | 2018-12-18 |
Family
ID=64629036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710451072.1A Pending CN109013583A (en) | 2017-06-12 | 2017-06-12 | A kind of PIG high resiliency pressurization pneumatic bomb cleaning technique |
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| CN (1) | CN109013583A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109985868A (en) * | 2019-04-26 | 2019-07-09 | 马付林 | Oil pipeline inner wall cleaning oil pollution method |
| CN112657972A (en) * | 2020-12-07 | 2021-04-16 | 沈阳石化设备研究院有限公司 | Melt-out pipeline cleaner, melt-out pipeline cleaning equipment and melt-out pipeline cleaning method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101444782A (en) * | 2008-12-26 | 2009-06-03 | 中冶建工有限公司 | Method for cleaning or corrosion-protective coating inner wall of industrial pipeline and device |
| CN104307822A (en) * | 2014-08-19 | 2015-01-28 | 中国化学工程第三建设有限公司 | Pollution-free, high-efficiency and long-distance pipe installing and cleaning method |
| CN104525536A (en) * | 2015-01-06 | 2015-04-22 | 天津市瑞德赛恩新材料开发有限公司 | Subsea pipeline cleaning method with micro-jet shock wave tube cleaners and cleaning train combined |
| CN105618439A (en) * | 2016-01-31 | 2016-06-01 | 李志强 | Cleaning system and cleaning construction method for crude oil pipeline |
| CN106733964A (en) * | 2017-01-12 | 2017-05-31 | 锐驰高科股份有限公司 | The innoxious cleaning of discarded crude oil pipeline |
-
2017
- 2017-06-12 CN CN201710451072.1A patent/CN109013583A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101444782A (en) * | 2008-12-26 | 2009-06-03 | 中冶建工有限公司 | Method for cleaning or corrosion-protective coating inner wall of industrial pipeline and device |
| CN104307822A (en) * | 2014-08-19 | 2015-01-28 | 中国化学工程第三建设有限公司 | Pollution-free, high-efficiency and long-distance pipe installing and cleaning method |
| CN104525536A (en) * | 2015-01-06 | 2015-04-22 | 天津市瑞德赛恩新材料开发有限公司 | Subsea pipeline cleaning method with micro-jet shock wave tube cleaners and cleaning train combined |
| CN105618439A (en) * | 2016-01-31 | 2016-06-01 | 李志强 | Cleaning system and cleaning construction method for crude oil pipeline |
| CN106733964A (en) * | 2017-01-12 | 2017-05-31 | 锐驰高科股份有限公司 | The innoxious cleaning of discarded crude oil pipeline |
Non-Patent Citations (2)
| Title |
|---|
| 康勇: "《油气管道工程》", 31 December 2008 * |
| 张薇娜: "清管器(Pig)清洗技术", 《洗净技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109985868A (en) * | 2019-04-26 | 2019-07-09 | 马付林 | Oil pipeline inner wall cleaning oil pollution method |
| CN112657972A (en) * | 2020-12-07 | 2021-04-16 | 沈阳石化设备研究院有限公司 | Melt-out pipeline cleaner, melt-out pipeline cleaning equipment and melt-out pipeline cleaning method |
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| PB01 | Publication | ||
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Application publication date: 20181218 |