CN104791580A - Pipeline lined with anti-corrosion plastic pipe - Google Patents

Pipeline lined with anti-corrosion plastic pipe Download PDF

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Publication number
CN104791580A
CN104791580A CN201510226626.9A CN201510226626A CN104791580A CN 104791580 A CN104791580 A CN 104791580A CN 201510226626 A CN201510226626 A CN 201510226626A CN 104791580 A CN104791580 A CN 104791580A
Authority
CN
China
Prior art keywords
flange
steel
plastic pipe
pipe
rot plastic
Prior art date
Application number
CN201510226626.9A
Other languages
Chinese (zh)
Inventor
周长山
王春锋
刘晓冬
商海光
Original Assignee
山东柯林瑞尔管道工程有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 山东柯林瑞尔管道工程有限公司 filed Critical 山东柯林瑞尔管道工程有限公司
Priority to CN201510226626.9A priority Critical patent/CN104791580A/en
Publication of CN104791580A publication Critical patent/CN104791580A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04Coatings characterised by the materials used
    • F16L58/10Coatings characterised by the materials used by rubber or plastics
    • F16L58/1009Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/18Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
    • F16L58/187Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings for flanged joints

Abstract

Provided is a pipeline lined with an anti-corrosion plastic pipe. A plastic flange is welded to the outer end of the anti-corrosion plastic pipe in a hot melting mode, the anti-corrosion plastic pipe penetrates from one end of the pipeline and is pulled outside the other end of the pipeline, and an outer fixture is installed on the portion, exposed out of a steel flange, of the anti-corrosion plastic pipe; pulling force is cancelled, an expander is installed in the anti-corrosion plastic pipe, another plastic flange is welded to the other end of the anti-corrosion plastic pipe in the hot melting mode after the outer fixture is disassembled, the expander is taken out, and the anti-corrosion plastic pipe which loses the pulling force drives the another plastic flange to retract; the plastic flange on one anti-corrosion plastic pipe and a plastic flange on another anti-corrosion plastic pipe make contact with each other and are pressed and sealed correspondingly when the steel flange on the manufactured pipeline is connected with a steel flange on another pipeline into a whole through a bolt set, a steel way and the steel flanges are all covered by corrosion prevention and wear resistance materials, liquid does not make contact with the steel way and the steel flanges, therefore, steel pipes and the steel flanges cannot be corroded and worn, the service life of the pipeline can be prolonged, leakage cannot occur even though the pipeline is used for a long time, and safe production is guaranteed.

Description

A kind of inside lining anti-corrosive plastic tube pipeline
Technical field
The present invention relates to a kind of aseptic technic of pipeline, is a kind of inside lining anti-corrosive plastic tube pipeline.
Background technique
In order to the technician in working life improving pipeline has invented the technology at the inner lined duct of steel pipe, steel pipe inwall is covered by anticorrosion, wear-resisting plastic tube, liquid does not contact steel pipe, and steel pipe can not be corroded and wear and tear, thus improves working life.In order to reach anticorrosion, wear-resisting object, needing the plastic tube of liner must possess in pipeline continuously, inner-walls of duct is covered completely by anticorrosion, wear-resisting plastic tube.In the processing of current liner, in order to ensure the continuity of inner lining material, in the end sweat soldering plastics flange of plastic tube or the method for carrying out flange (being also Flange) on inner lining plastic tube after general employing inner lining plastic tube, the end face of plastics flange is utilized to be contained by the end face of steel flange, in installation, plastics flange or Flange are used as the sealing gasket of connection part, then with bolt, pipeline and pipe fitting are coupled together.
Flange is that after utilizing former internal lining pipe insertion lining, reserved certain length carries out heating again and turns up and formed.Sweat soldering plastics flange is then the position of pipeline being removed a section in advance and reserving welding plastic flange after pipeline inserting inner lining plastic tube, connecting tube again after plastics flange to be welded, owing to having inner lining plastic tube in pipeline and cannot directly welding on former pipeline, welding of offing normal can only be adopted to carry out parcel again and to fill (being commonly called as packing to wrap up in), this processing method destroys the integrity of former pipeline, make former pipeline form one section of weak parcel section district, easily occur the accidents such as booster in this weak area.Again due to the plastics flange of interconnective steel flange and sweat soldering or Flange material not identical, after bolton is installed, although can not leak in a short time, but pipeline is in long-term use and storage and transport process, ambient temperature, medium, pressure all can change, and plastic lining flange can deform under the extruding of steel flange, gap is there is between plastics flange, thus produce leakage, be easy to produce serious accident, cause Loss of Life and property.
Summary of the invention
The object of this invention is to provide a kind of inside lining anti-corrosive plastic tube pipeline, overcome prior art Problems existing, inner-walls of duct and end face of flange are covered by anti-rot plastic material, improve the working life of pipeline.
The object of the present invention is achieved like this: comprise steel flange, anti-rot plastic pipe, steel pipe, bolt group, the two ends Weldable Steel flange of steel pipe, in steel pipe during inside lining anti-corrosive plastic tube, by a plastics flange sweat soldering in the outer end of anti-rot plastic pipe, anti-rot plastic pipe penetrates from one end of steel pipe and is drawn to the other end, sweat soldering is made to be close in the end face outside of supporting steel flange at the inner side end of the plastics flange of the outer end of anti-rot plastic pipe, now also by anti-rot plastic pipe traction certain distance, one end of anti-rot plastic pipe is made to be exposed at outside steel flange, maintain tractive force, outer jig installed by the described anti-rot plastic pipe be exposed at outside steel flange, tractive force is passed on steel pipe, the part anti-rot plastic pipe be exposed at after making to cancel tractive force outside steel flange can not retract in steel flange, in anti-rot plastic pipe, expander is installed, anti-rot plastic pipe is made to be fixed on steel flange after expander expansion, after making the outer jig of dismounting, the part anti-rot plastic pipe be exposed at outside steel flange can not retract in steel flange, by another plastics flange sweat soldering on the other end of anti-rot plastic pipe, cancel the expansionary force of expander and take out expander, anti-rot plastic pipe bounces back with another described plastics flange after losing tractive force, the inner side end of another described plastics flange is made to be close in the end face outside of another supporting steel flange, by the band steel flange that above-mentioned steps makes, anti-rot plastic pipe, when steel flange on a steel pipe of plastics flange and the steel flange bolt group on another root steel pipe link into an integrated entity, plastics flange corresponding contact press seal on plastics flange on an anti-rot plastic pipe and another root anti-rot plastic pipe.
Ring is placed spacing between steel flange on steel flange on a steel pipe and another root steel pipe, plastics flange corresponding contact impacting force on plastics flange on a described anti-rot plastic pipe and another root anti-rot plastic pipe is controlled, prevents the excessive generation distortion of impacting force.
The invention has the beneficial effects as follows: steel pipe, steel flange are all covered by corrosion-proof wear-resistant material, liquid is not in contact with it, steel pipe, steel flange can not be corroded and wear and tear, can improve the working life of pipeline, this pipeline overcomes prior art Problems existing, there will not be because ambient temperature, medium, pressure change, the phenomenon in gap is there is between plastics flange, Long-Time Service also can not produce leakage, ensures safety in production, has significant economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is the erection drawing of the embodiment of the present invention.
Fig. 2 is the phase diagram of anti-rot plastic pipe one end sweat soldering plastics flange the other end when being pulled out steel flange.
Fig. 3 is the phase diagram that the anti-rot plastic pipe be pulled out is fixed by outer jig.
Fig. 4 removes the phase diagram that the sweat soldering plastics flange of expander installed by outer jig.
Specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described.
As seen from the figure, embodiments of the invention comprise plastics flange 1, steel flange 2, anti-rot plastic pipe 3, steel pipe 4, bolt group 5, ring spacing 6, the two ends Weldable Steel flange 2 of steel pipe 4, during steel pipe 4 li of inside lining anti-corrosive plastic tubes 3, by the sweat soldering of a plastics flange 1 in the outer end of anti-rot plastic pipe 3, anti-rot plastic pipe 3 penetrates from one end of steel pipe 4 and is drawn to the other end, as shown in Figure 2.Sweat soldering is made to be close in the end face outside of supporting steel flange 2 at the inner side end of the plastics flange 1 of the outer end of anti-rot plastic pipe 3, now also anti-rot plastic pipe 3 is drawn certain distance, one end of anti-rot plastic pipe 3 is made to be exposed at outside steel flange 2, maintain tractive force, the described anti-rot plastic pipe 3 be exposed at outside steel flange 2 is installed outer jig 7 and (during traction, anti-rot plastic pipe 3 has drawing head, do not draw in figure, outer jig 7 is actual to be mounted between steel flange and drawing head), tractive force is passed on steel pipe 4, the part anti-rot plastic pipe 3 be exposed at after making to cancel tractive force outside steel flange 2 can not retract in steel flange 2, as shown in Figure 3.In anti-rot plastic pipe 3, expander 8 is installed, expander 8 makes anti-rot plastic pipe 3 be fixed on steel flange 2 after expanding, after making the outer jig 7 of dismounting, the part anti-rot plastic pipe 3 be exposed at outside steel flange 2 can not retract in steel flange 2, by another plastics flange 1 sweat soldering on the other end of anti-rot plastic pipe 3, as shown in Figure 4.Cancel the expansionary force of expander 8 and take out expander 8, bounce back with another described plastics flange 1 after anti-rot plastic pipe 3 loses tractive force, the inner side end of another described plastics flange 1 is made to be close in the end face outside of another supporting steel flange 2, by the band steel flange 2 that above-mentioned steps makes, anti-rot plastic pipe 3, when steel flange 2 on a steel pipe 4 of plastics flange 1 links into an integrated entity by bolt group 5 with the steel flange 2 on another root steel pipe 4, plastics flange 1 on an anti-rot plastic pipe 3 and the plastics flange 1 corresponding contact press seal on another root anti-rot plastic pipe 3, as shown in Figure 1.
Further measure of the present invention is: place ring spacing 6 between the steel flange 2 on the steel flange 2 on a steel pipe 4 and another root steel pipe 4, make two steel flange keeping parallelisms, plastics flange 1 on a described anti-rot plastic pipe 3 is controlled with the plastics flange 1 corresponding contact impacting force on another root anti-rot plastic pipe 3, ensures that long-term close contact keeps sealing.

Claims (2)

1. an inside lining anti-corrosive plastic tube pipeline, comprise steel flange (2), anti-rot plastic pipe (3), steel pipe (4), bolt group (5), two ends Weldable Steel flange (2) of steel pipe (4), it is characterized in that: time steel pipe (4) inner inside lining anti-corrosive plastic tube (3), by the outer end of a plastics flange (1) sweat soldering in anti-rot plastic pipe (3), anti-rot plastic pipe (3) penetrates from one end of steel pipe (4) and is drawn to the other end, sweat soldering is made to be close in the end face outside of supporting steel flange (2) at the inner side end of the plastics flange (1) of the outer end of anti-rot plastic pipe (3), now also by anti-rot plastic pipe (3) traction certain distance, one end of anti-rot plastic pipe (3) is made to be exposed at steel flange (2) outward, maintain tractive force, steel flange (2) anti-rot plastic pipe (3) the outward outer jig of upper installation (7) is exposed at described, tractive force is passed on steel pipe (4), being exposed at steel flange (2) part anti-rot plastic pipe (3) outward after making to cancel tractive force can not retract in steel flange (2), in anti-rot plastic pipe (3), expander (8) is installed, anti-rot plastic pipe (3) is made to be fixed on steel flange (2) after expander (8) expansion, after making the outer jig (7) of dismounting, being exposed at steel flange (2) part anti-rot plastic pipe (3) outward can not retract in steel flange (2), by another plastics flange (1) sweat soldering on the other end of anti-rot plastic pipe (3), cancel the expansionary force of expander (8) and take out expander (8), anti-rot plastic pipe (3) bounces back with described another plastics flange (1) after losing tractive force, the inner side end of described another plastics flange (1) is made to be close in the end face outside of supporting another steel flange (2), by the band steel flange (2) that above-mentioned steps makes, anti-rot plastic pipe (3), when steel flange (2) on a steel pipe (4) of plastics flange (1) links into an integrated entity by bolt group (5) with the steel flange (2) on another root steel pipe (4), plastics flange (1) on an anti-rot plastic pipe (3) and plastics flange (1) the corresponding contact press seal on another root anti-rot plastic pipe (3).
2. a kind of inside lining anti-corrosive plastic tube pipeline according to claim 1, it is characterized in that: between the steel flange (2) on the steel flange (2) on a steel pipe (4) and another root steel pipe (4), place ring spacing (6), the plastics flange (1) on a described anti-rot plastic pipe (3) is controlled with plastics flange (1) the corresponding contact impacting force on another root anti-rot plastic pipe (3).
CN201510226626.9A 2015-05-07 2015-05-07 Pipeline lined with anti-corrosion plastic pipe CN104791580A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510226626.9A CN104791580A (en) 2015-05-07 2015-05-07 Pipeline lined with anti-corrosion plastic pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510226626.9A CN104791580A (en) 2015-05-07 2015-05-07 Pipeline lined with anti-corrosion plastic pipe

Publications (1)

Publication Number Publication Date
CN104791580A true CN104791580A (en) 2015-07-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510226626.9A CN104791580A (en) 2015-05-07 2015-05-07 Pipeline lined with anti-corrosion plastic pipe

Country Status (1)

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CN (1) CN104791580A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106965468A (en) * 2017-05-15 2017-07-21 夏慧 A kind of ports of petroleum pipelines flanging process
CN106976258A (en) * 2017-05-15 2017-07-25 夏慧 The preparation method of anticorrosive coat inside a kind of preservative tank
CN107420666A (en) * 2017-09-13 2017-12-01 马付林 A kind of connection method between steel pipeline inside lining anti-corrosive construction section
CN107662349A (en) * 2017-09-30 2018-02-06 深圳计为自动化技术有限公司 Magnetic double level gauge and its processing method for connecting tubule liner

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281859A (en) * 1976-01-09 1981-08-04 Le Carbone (Great Britain) Limited Pipe joints
GB2213894A (en) * 1987-12-23 1989-08-23 Eric Gordon Davies Fire resistant pipe seal
US5199153A (en) * 1990-12-03 1993-04-06 Compagnie Plastic Omnium Method for making a flanged pipe length having a lining of plastic material
CN1277101A (en) * 1999-06-11 2000-12-20 郎丰生 Technological process and equipment for lining long steel pipe with high-density polyethylene pipe (HDPE)
CN1488052A (en) * 2000-12-12 2004-04-07 拉蒂斯知识产权有限公司 Joining of lined pipes
CN103123024A (en) * 2013-01-21 2013-05-29 章明伟 Device and method for connecting and sealing steel-plastic composite steel pipe, flange metal pipe and pipe fitting

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281859A (en) * 1976-01-09 1981-08-04 Le Carbone (Great Britain) Limited Pipe joints
GB2213894A (en) * 1987-12-23 1989-08-23 Eric Gordon Davies Fire resistant pipe seal
US5199153A (en) * 1990-12-03 1993-04-06 Compagnie Plastic Omnium Method for making a flanged pipe length having a lining of plastic material
CN1277101A (en) * 1999-06-11 2000-12-20 郎丰生 Technological process and equipment for lining long steel pipe with high-density polyethylene pipe (HDPE)
CN1488052A (en) * 2000-12-12 2004-04-07 拉蒂斯知识产权有限公司 Joining of lined pipes
CN103123024A (en) * 2013-01-21 2013-05-29 章明伟 Device and method for connecting and sealing steel-plastic composite steel pipe, flange metal pipe and pipe fitting

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
周长山等: "等径压缩HDPE管内衬法修复在线旧管道", 《非开挖技术》 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106965468A (en) * 2017-05-15 2017-07-21 夏慧 A kind of ports of petroleum pipelines flanging process
CN106976258A (en) * 2017-05-15 2017-07-25 夏慧 The preparation method of anticorrosive coat inside a kind of preservative tank
CN107420666A (en) * 2017-09-13 2017-12-01 马付林 A kind of connection method between steel pipeline inside lining anti-corrosive construction section
CN107420666B (en) * 2017-09-13 2019-03-29 马付林 A kind of connection method between steel pipeline inside lining anti-corrosive construction section
CN107662349A (en) * 2017-09-30 2018-02-06 深圳计为自动化技术有限公司 Magnetic double level gauge and its processing method for connecting tubule liner

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EXSB Decision made by sipo to initiate substantive examination
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Application publication date: 20150722