CN104190675A - Cleaning method and device special for 3PE erosion resistant layer of oil and gas pipeline - Google Patents
Cleaning method and device special for 3PE erosion resistant layer of oil and gas pipeline Download PDFInfo
- Publication number
- CN104190675A CN104190675A CN201410429649.5A CN201410429649A CN104190675A CN 104190675 A CN104190675 A CN 104190675A CN 201410429649 A CN201410429649 A CN 201410429649A CN 104190675 A CN104190675 A CN 104190675A
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- CN
- China
- Prior art keywords
- oil
- layer
- anticorrosive coat
- exclusively used
- gas pipes
- 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.)
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Classifications
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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
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/047—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices having internal motors, e.g. turbines for powering cleaning tools
Abstract
The invention provides a cleaning method special for a 3PE erosion resistant layer of an oil and gas pipeline. The method includes the steps that firstly, an opening is formed in a polyethylene layer, then the polyethylene layer is pressed into a machine rolling wheel, the rolling wheel is rotated clockwise to automatically strain the rolling wheel, and a complete machine is tightly attached to a tube wall; secondly, an electromagnetic wave generator is aligned with a region to be cleaned, electromagnetic waves are directionally guided to act on a specific region through a waveguide technology, and the molecular structure of an adhesive layer is directly damaged through electromagnetic energy so that the molecular structure can be hardened and invalid instantly at normal temperature; thirdly, the PE layer is separated from an epoxy layer under the action of mechanical force, the polyethylene layer is separated from the tube wall immediately, and the rolling wheel outwards conveys the polyethylene layer continuously. By means of the cleaning method and device special for the 3PE erosion resistant layer of the oil and gas pipeline, low consumption of electric energy is achieved without damaging the pipeline, so that automatic operation is achieved, the applicable tube diameter range is wide, and work efficiency is improved. The temperature is not higher than 70 degrees, the cleaning method and device are easy and convenient to operate, convenient to construct and carry, high in efficiency and capable of continuous operation. The cleaning method and device are wide in applicable range and free of tube diameter limitation.
Description
Technical field
The present invention relates to pipe-line maintenance damage repair technology field, be specifically related to a kind of method for cleaning and cleaning equipment that is exclusively used in oil and gas pipes 3PE anticorrosive coat.
Background technology
Existing oil and gas pipes 3PE anticorrosive coat, mainly to take polyethylene and high density polyethylene (HDPE) as main, 3PE is anticorrosion to be generally comprised of 3-tier architecture: ground floor FBE, second layer adhesive layer, three-layer polyethylene layer, three kinds of materials are mixed and combined together, through processing, make it to form good anticorrosive coat with steel pipe strong bonded.
But in dimension first-aid repair construction process, anticorrosive coat is removed becomes a difficult problem that hinders repairing, and the mode of mainly taking at present has three kinds, the first is with scoop, to remove after first roasting with fire again, often repeatedly just can remove several times, and efficiency is low and have a naked light, dangerous, to environment; The second is to adopt machinery or manual type to carry out scraping, tends to pipe surface to cause mechanical damage, and may produce spark; The third is to utilize Electromagnetic Heating or infrared heating technique to heat pipeline, after making anticorrosive coat softening, use again the artificial way of cleaning one by one, remove anticorrosive coat, this technology consuming electric power is large, efficiency is low, complicated operation, because temperature (300 degree left and right) height can destroy pipeline body metallic crystalline structure to a certain extent, affects tube performance.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of method for cleaning and cleaning equipment that is exclusively used in oil and gas pipes 3PE anticorrosive coat, it has solved these above-mentioned problems.
The technical solution adopted in the present invention is as follows: a kind of method for cleaning that is exclusively used in oil and gas pipes 3PE anticorrosive coat,
Comprise the steps:
The first step, breaks mouth by polyethylene layer, is then pressed in machine roller, clockwise rotates roller automatic tension, and complete machine is close to tube wall.
Second step, aims at region for clearance by electromagnetic wave generator, utilizes guide technology, and directional guide Electromagnetic Field, in specific region, directly destroys the molecular structure of adhesive layer by electromagnetic energy, and its moment sclerosis was at normal temperatures lost efficacy;
The 3rd step, under the effect of mechanical force, PE layer is separated with epoxy layer, polyethylene layer departs from tube wall immediately, and roller continues outwards to transmit polyethylene layer.
A kind of cleaning equipment that is exclusively used in oil and gas pipes 3PE anticorrosive coat, comprise power supply box, described power supply box connects control cabinet by electric wire, in described control cabinet, establish motor, the output connection for transmission system of described motor, described transmission system connects roller, and described roller is all provided with baffle plate, and the left and right sides, described baffle plate lower end is all provided with 3PE anticorrosive coat cutting knife; Described roller bottom is provided with electromagnetic wave expelling plate, is provided with some spines on described roller, and described control cabinet outer setting has controller.
Preferably, the temperature of heating is not higher than 70 degree.
Preferably, described electromagnetic wave expelling plate bottom is provided with rectangular waveguide.
Preferably, described spine is high duty metal manufacture.
Preferably, 50 hertz of described electromagnetic frequencies, rated voltage 220-380V, voltage adaptation scope is positive and negative 20%, rated power 4-40KW.
Beneficial effect of the present invention comprises:
The present invention has realized low electric energy consumption, and the problem that can not damage pipeline body, thereby realizes automation mechanized operation, and applicable caliber is in extensive range, increases work efficiency.Temperature, not higher than 70 degree, can not damage pipeline body.Volume is little, lightweight, easy and simple to handle, and constructability carries, and efficiency is high, can continued operation.Applied widely, not limited by caliber.
Accompanying drawing explanation
Fig. 1 is a kind of overall structure schematic diagram that is exclusively used in the cleaning equipment of oil and gas pipes 3PE anticorrosive coat of the present invention;
Fig. 2 is a kind of use state diagram that is exclusively used in the cleaning equipment of oil and gas pipes 3PE anticorrosive coat of the present invention.
The specific embodiment
Below in conjunction with the specific embodiment, the present invention is described in detail.
Be exclusively used in a method for cleaning for oil and gas pipes 3PE anticorrosive coat,
Comprise the steps:
The first step, breaks mouth by polyethylene layer, is then pressed in machine roller, clockwise rotates roller automatic tension, and complete machine is close to tube wall.
Second step, aims at region for clearance by electromagnetic wave generator, utilizes guide technology, and directional guide Electromagnetic Field, in specific region, directly destroys the molecular structure of adhesive layer by electromagnetic energy, and its moment sclerosis was at normal temperatures lost efficacy;
The 3rd step, under the effect of mechanical force, PE layer is separated with epoxy layer, polyethylene layer departs from tube wall immediately, and roller continues outwards to transmit polyethylene layer.
A kind of cleaning equipment that is exclusively used in oil and gas pipes 3PE anticorrosive coat, as shown in Figure 1, 2, comprise power supply box 7, described power supply box 7 connects control cabinet 5 by electric wire 6, in described control cabinet 5, establish motor, the output connection for transmission system of described motor, described transmission system connects roller 1, described roller 1 is all provided with baffle plate 2, and described baffle plate 2 left and right sides, lower end are all provided with 3PE anticorrosive coat cutting knife 4; Described roller 1 bottom is provided with electromagnetic wave expelling plate 3, is provided with some spines 10 on described roller 1, and described control cabinet 5 outer setting have controller.
The temperature of heating is not higher than 70 degree.
Described electromagnetic wave expelling plate 3 bottoms are provided with rectangular waveguide.
Described spine 10 is high duty metal manufacture.
50 hertz of the frequencies of described electromagnetic wave expelling plate 3, rated voltage 220-380V, voltage adaptation scope is positive and negative 20%, rated power 4-40KW.
Above-mentioned embodiment is the preferred embodiments of the present invention; be not for limiting enforcement of the present invention and interest field; all equivalences of making according to the content described in the present patent application scope of patent protection change and modify, and all should be included in the present patent application the scope of the claims.
Claims (7)
1. a method for cleaning that is exclusively used in oil and gas pipes 3PE anticorrosive coat, is characterized in that,
Comprise the steps:
The first step, breaks mouth by polyethylene layer, is then pressed in machine roller, clockwise rotates roller automatic tension, and complete machine is close to tube wall.
Second step, aims at region for clearance by electromagnetic wave generator, utilizes guide technology, and directional guide Electromagnetic Field, in specific region, directly destroys the molecular structure of adhesive layer by electromagnetic energy, and its moment sclerosis was at normal temperatures lost efficacy;
The 3rd step, under the effect of mechanical force, PE layer is separated with epoxy layer, polyethylene layer departs from tube wall immediately, and roller continues outwards to transmit polyethylene layer.
2. a cleaning equipment that is exclusively used in oil and gas pipes 3PE anticorrosive coat, it is characterized in that, comprise power supply box, described power supply box connects control cabinet by electric wire, in described control cabinet, establish motor, the output connection for transmission system of described motor, described transmission system connects roller, described roller is all provided with baffle plate, and the left and right sides, described baffle plate lower end is all provided with 3PE anticorrosive coat cutting knife; Described roller bottom is provided with electromagnetic wave expelling plate, is provided with some spines on described roller, and described control cabinet outer setting has controller.
3. a kind of method for cleaning that is exclusively used in oil and gas pipes 3PE anticorrosive coat according to claim 1, is characterized in that, the temperature of heating is not higher than 70 degree.
4. a kind of cleaning equipment that is exclusively used in oil and gas pipes 3PE anticorrosive coat according to claim 2, is characterized in that, described electromagnetic wave expelling plate bottom is provided with rectangular waveguide.
5. a kind of cleaning equipment that is exclusively used in oil and gas pipes 3PE anticorrosive coat according to claim 2, is characterized in that, described spine is high duty metal manufacture.
6. a kind of method for cleaning that is exclusively used in oil and gas pipes 3PE anticorrosive coat according to claim 1, is characterized in that, 50 hertz of described electromagnetic frequencies, and rated voltage 220-380V, voltage adaptation scope is positive and negative 20%, rated power 4-40KW.
7. a kind of cleaning equipment that is exclusively used in oil and gas pipes 3PE anticorrosive coat according to claim 2, is characterized in that, 50 hertz of the frequencies of described electromagnetic wave expelling plate, and rated voltage 220-380V, voltage adaptation scope is positive and negative 20%, rated power 4-40KW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410429649.5A CN104190675B (en) | 2014-08-27 | 2014-08-27 | A kind of cleaning equipment being exclusively used in oil and gas pipes 3PE anticorrosive coat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410429649.5A CN104190675B (en) | 2014-08-27 | 2014-08-27 | A kind of cleaning equipment being exclusively used in oil and gas pipes 3PE anticorrosive coat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104190675A true CN104190675A (en) | 2014-12-10 |
| CN104190675B CN104190675B (en) | 2016-09-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410429649.5A Active CN104190675B (en) | 2014-08-27 | 2014-08-27 | A kind of cleaning equipment being exclusively used in oil and gas pipes 3PE anticorrosive coat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104190675B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09303620A (en) * | 1996-05-17 | 1997-11-28 | Ito Kensetsu Kk | Anti-corrosion layer separating method anti-corrosion layer covered pipe, anti-corrosion layer separating heater, and anti-corrosion layer separating tool |
| CN201293182Y (en) * | 2008-10-16 | 2009-08-19 | 吴发东 | Integration mouth compensating machine for pipeline corrosion protection layer |
| CN101881363A (en) * | 2010-07-06 | 2010-11-10 | 中国石油天然气股份有限公司 | Crawler-type large diameter pipeline external anticorrosive coating peeling machine |
| CN202741381U (en) * | 2012-07-26 | 2013-02-20 | 中国石油天然气股份有限公司 | Electro-magnetic induction type pipeline 3 poly ethylene (3PE) antiseptic fast tripping device |
| CN103528948A (en) * | 2013-10-29 | 2014-01-22 | 陕西安泰科石油技术工程有限公司 | Peeling stretcher for measuring peeling strength of 3PE outer anticorrosive coating of steel pipe |
| CN203991549U (en) * | 2014-08-27 | 2014-12-10 | 孙海华 | A kind of cleaning equipment that is exclusively used in oil and gas pipes 3PE anticorrosive coat |
-
2014
- 2014-08-27 CN CN201410429649.5A patent/CN104190675B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09303620A (en) * | 1996-05-17 | 1997-11-28 | Ito Kensetsu Kk | Anti-corrosion layer separating method anti-corrosion layer covered pipe, anti-corrosion layer separating heater, and anti-corrosion layer separating tool |
| CN201293182Y (en) * | 2008-10-16 | 2009-08-19 | 吴发东 | Integration mouth compensating machine for pipeline corrosion protection layer |
| CN101881363A (en) * | 2010-07-06 | 2010-11-10 | 中国石油天然气股份有限公司 | Crawler-type large diameter pipeline external anticorrosive coating peeling machine |
| CN202741381U (en) * | 2012-07-26 | 2013-02-20 | 中国石油天然气股份有限公司 | Electro-magnetic induction type pipeline 3 poly ethylene (3PE) antiseptic fast tripping device |
| CN103528948A (en) * | 2013-10-29 | 2014-01-22 | 陕西安泰科石油技术工程有限公司 | Peeling stretcher for measuring peeling strength of 3PE outer anticorrosive coating of steel pipe |
| CN203991549U (en) * | 2014-08-27 | 2014-12-10 | 孙海华 | A kind of cleaning equipment that is exclusively used in oil and gas pipes 3PE anticorrosive coat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104190675B (en) | 2016-09-28 |
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Effective date of registration: 20170303 Address after: 300000 Tianjin District of Dongli City Huaming high-tech industrial zone HuaFeng Road 6 building A building 3 room C-101-1 Patentee after: Tianjin Nai Si engineering Co., Ltd Address before: 100089 Beijing city Haidian District daoxiangyuan Sirirath building 4 1-902 Patentee before: Sun Haihua |