CN1071240A - Non-mending technology for inside of corrosion-resisting compound pipeline structure - Google Patents
Non-mending technology for inside of corrosion-resisting compound pipeline structure Download PDFInfo
- Publication number
- CN1071240A CN1071240A CN 91106560 CN91106560A CN1071240A CN 1071240 A CN1071240 A CN 1071240A CN 91106560 CN91106560 CN 91106560 CN 91106560 A CN91106560 A CN 91106560A CN 1071240 A CN1071240 A CN 1071240A
- Authority
- CN
- China
- Prior art keywords
- corrosion
- resistant plate
- corrosion resistant
- pipeline structure
- lining
- 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
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The invention belongs to non-mending technology for inside of corrosion-resisting compound pipeline structure, be that the corrosion resistant plate lining that is pressed into moulding in steel pipe tube head or joint forms through roll extrusion, there is flange the outer end of mending cover, and the thickness that has increased corrosion resistant plate punctures when preventing to weld, inwall of the present invention is the corrosion resistant plate face, do not need repaired mouth, and manufacture simply easy construction, cost is low, guaranteed interior anticorrosive quality, long service life is suitable for the pipe applications in any aperture.
Description
The present invention relates to pipeline with composite structure internal joint patch technology not.
At present, carry the pipeline with corrosive liquids (or/and gas), because anticorrosion problem in can not solving, pipeline damages very fast, has both increased input, has influenced production again.With the oil field is example, the most of oil field of China particularly in the old filed crude oil moisture content rise year by year, moisture to be separated the sewage salinity height after the separation, and contain dissolved oxygen, Co before the Crude Oil Transportation
2, H
2Corrosive gass such as S, this oil-polluted water corrosivity is very strong, and the oil field gathering and transportation steel pipeline is soon because of the internal corrosion perforation replacing of being forced to stop production.At present, adopt internal corrosion prevention technology to prolong pipeline working life, promptly at steel pipe inwall coated anti-corrosion layer, but since the pipe joint place need weld, the high thermal destruction of high temperature during welding anticorrosive coat, make it lose antisepsis, its working life is the same with common steel tube.∮ 219～∮ 529mm extra heavy pipe line can be done the operation of postwelding internal joint patch with assisting vehicle in the formula of climbing into, and with rust cleaning back, steel pipe inwall weld bond place coated anti-corrosion layer, and the interior anti-corrosive steel tube postwelding internal joint patch of ∮ 50～∮ 219mm is not still had solution preferably until now.The on-the-spot postwelding that has at present not repaired mouth is just put into operation, influenced pipeline working life, the aperture that bores an about ∮ 10mm at postwelding repaired mouth place that has, stretch into the repaired mouth place with the fine, soft fur brush again and smear corrosion resistant coating, block aperture after being coated with again,, do not have leak detection because of no macroscopic examination, no thickness measuring is called as the way that is not way.Abroad, american commerce resin company adopts the formula that the climbs into internal joint patch dolly of isotope control, has functions such as telechirics, impeller blasting, dust suction, anticorrosion with painting lacquer, detection, costs an arm and a leg, and also only is suitable for the pipeline of ∮ 159～630mm.The Oilfield using stainless steel pipe nipple that the Soviet Union has solves not patch technology of pipe welding port, because stainless steel valency height, and increased weld bond quantity and constructed man-hour, thereby improved the pipeline construction cost greatly.
Purpose of the present invention is to provide a kind of exactly can eliminate above-mentioned shortcoming, and technology is simple, and is easy to manufacture, does not internal joint patch technology of composite structure that joint or tube head lining be suitable for any aperture pipeline with corrosion resistant plate.
In order to achieve the above object, the present invention's corrosion resistant plate lining of in joint or tube head, packing into, circle in promptly earlier whole joint or the tube head is made the cylindrical body lining of an end outward flanging with corrosion resistant plate, smears behind the high-temperature agglomerant in press-in connector or the tube head, the roll extrusion inwall again.
Long 80～the 150mm of lining of the present invention, the high 1～3mm of flanging.
The present invention is that corrosion resistant plate does not need repaired mouth owing to inwall, and manufactures simply easy construction, cost is low, has guaranteed interior anticorrosive quality, long service life, compare with the Stainless Steel Tube pipe nipple, cost reduces by 1/2～4/5, and is suitable for welding, the installation of any aperture pipeline.
Below the present invention will be further described:
This device is the corrosion resistant plate lining that is pressed into moulding in steel pipe joint or tube head, circle in promptly earlier whole joint or the tube head, corrosion resistant plate is pressed into the cylindrical body lining of an end outward flanging, and be pressed in steel pipe joint or the tube head after smearing warm Bond in its outside and form composite structure, flange contacts with the joint end face, the roll extrusion inwall makes it to combine closely with the steel pipe inwall again.
The present invention can be made into joint, also can directly make in the steel pipe tube head.Joint is two, weld with two steel pipes respectively during field welding, then two weld bond places are carried out preservative treatment, again two joints are welded, earlier with the stainless steel flange alignment of two joints, use the stainless steel electrode backing weld, again welding during weldering, guarantee that like this inner-walls of duct is surface stainless steel, guarantee antiseptic effect.Also stainless steel lining system can be gone in the steel pipe tube head, during field welding, the alignment flange is directly used the stainless steel electrode backing weld like this, and welded steel pipe has again omitted the twice weld bond of joint and tube head.
The used corrosion resistant plate thickness of the present invention is 0.5～1.5mm, and is undesirable less than the 0.5mm antiseptic effect, if greater than 1.5mm, then cost increases, though anticorrosion time ratio pipeline is long service time, and need not.
One end of corrosion resistant plate lining of the present invention is shaped on outside and flange its axis normal, and the flange height is 1～3mm, and its effect is to increase weld bond place corrosion resistant plate thickness, punctures when preventing to weld, and influences pipeline working life.The length of corrosion resistant plate lining is 80～150mm, because welding produces high temperature, and because transmission of heat, the interior anticorrosive coat of certain limit is destroyed by high temperature around making weld bond, the liner sleeve length that the present invention determines had both guaranteed that the anticorrosive coat of inner-walls of duct was excellent beyond the lining, made cost keep minimum again.
The said high-temperature agglomerant of the present invention is the anti-Bond of high temperature more than 700 ℃, and stainless steel lining and steel pipe inwall are further sealed, and prevents from that corrosive liquids from entering between lining and the steel pipe inwall to corrode steel pipe.
This device can be made into elbow, threeway of composite structure etc.
Embodiment 1: the composite structure tube head, and diameter of steel tube ∮ 50mm, stainless steel thickness of slab 0.8mm, the long 100mm of lining, the high 2mm of flange selects circle in the homogeneous tube head, makes the stainless steel lining sleeve forming again, is coated with high-temperature agglomerant, and lining is pressed in the steel pipe tube head.
Embodiment 2: composite structure joint, two diameter ∮ of joint 219mm, long 120mm, stainless steel thickness of slab 1mm, the long 115mm of lining, the high 2mm of flange.
Claims (4)
1, non-mending technology for inside of corrosion-resisting compound pipeline structure is characterized by the corrosion resistant plate lining that an end outward flanging is arranged in steel pipe joint or the tube head.
2, non-mending technology for inside of corrosion-resisting compound pipeline structure according to claim 1 is characterized in that said corrosion resistant plate liner sleeve length is 80～150mm.
3, non-mending technology for inside of corrosion-resisting compound pipeline structure is characterized by:
A. circle in earlier whole joint or the tube head;
B. corrosion resistant plate lining moulding-cylindrical body, an end flanging;
C. high-temperature agglomerant is smeared in the lining outside, and in press-in connector or the tube head;
D. roll extrusion inwall.
4,, it is characterized in that said corrosion resistant plate lining flanging height is 1～3mm according to claim 1 or 3 described non-mending technology for inside of corrosion-resisting compound pipeline structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91106560 CN1071240A (en) | 1991-09-25 | 1991-09-25 | Non-mending technology for inside of corrosion-resisting compound pipeline structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91106560 CN1071240A (en) | 1991-09-25 | 1991-09-25 | Non-mending technology for inside of corrosion-resisting compound pipeline structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1071240A true CN1071240A (en) | 1993-04-21 |
Family
ID=4907956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91106560 Pending CN1071240A (en) | 1991-09-25 | 1991-09-25 | Non-mending technology for inside of corrosion-resisting compound pipeline structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1071240A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052785C (en) * | 1998-07-24 | 2000-05-24 | 侯贤忠 | GRP-thin wall stainless steel composite pipe and its making process |
| CN1061749C (en) * | 1998-08-14 | 2001-02-07 | 侯贤忠 | Carbon steel pipe with inner and outer corrosionproof stainless steel coatings and production thereof |
| CN107701857A (en) * | 2017-11-16 | 2018-02-16 | 北京首钢建设集团有限公司 | Internal plastic coating steel pipe Crater antiseptic processing method |
-
1991
- 1991-09-25 CN CN 91106560 patent/CN1071240A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052785C (en) * | 1998-07-24 | 2000-05-24 | 侯贤忠 | GRP-thin wall stainless steel composite pipe and its making process |
| CN1061749C (en) * | 1998-08-14 | 2001-02-07 | 侯贤忠 | Carbon steel pipe with inner and outer corrosionproof stainless steel coatings and production thereof |
| CN107701857A (en) * | 2017-11-16 | 2018-02-16 | 北京首钢建设集团有限公司 | Internal plastic coating steel pipe Crater antiseptic processing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101694261B (en) | Internal repaired mouth construction process of internal coating pipeline | |
| CN206669222U (en) | Corrosion resistant lining tube | |
| CN1071240A (en) | Non-mending technology for inside of corrosion-resisting compound pipeline structure | |
| CN1247817C (en) | Method of protecting corrosion proof pipeline joint internal wall using sacrificing anode | |
| CN1031956C (en) | Sleeve-bonding jointing method for weld of lining pipe | |
| CN200945550Y (en) | Welding protection device with internal coating conducting tube | |
| CN2397341Y (en) | Pipeline connecting fittings | |
| CN2497131Y (en) | Inner-coated stainless steel water-purifying pipe | |
| CN210600695U (en) | Anti-corrosion direct-buried heat-insulation pipe | |
| CN204647602U (en) | A kind of composite bimetal pipe pipe end linkage structure | |
| CN2888233Y (en) | Quick joint for high pressure plastic pipe | |
| CN2101814U (en) | Joint for pipeline corrosion-proof composite structure | |
| CN2374732Y (en) | Aluminium-plastic compound tube hole plugging joint | |
| CN209340678U (en) | A kind of natural gas line interface sealing structure | |
| RU93053882A (en) | METHOD OF CONNECTING PIPES WITH AN INTERNAL ANTI-CORROSION COATING | |
| CN207018719U (en) | A kind of plastic union pipe head seal | |
| CN215674192U (en) | Quick-connecting polyethylene jacket pipe | |
| CN208951535U (en) | A kind of drain pipe of filtered brine storage tank | |
| CN219734496U (en) | Titanium alloy composite pipe | |
| RU2099625C1 (en) | Detachable joint for connection of thin-walled pipes | |
| CN2299976Y (en) | Anticorrosive coating for pipe wall | |
| CN2260222Y (en) | Metallic and plastic composition corrosion-proof pipe | |
| CN220366077U (en) | Novel pipeline flange anticorrosion protection cover | |
| CN2149540Y (en) | Internal pipe corrosion-proof additional ring | |
| CN214579598U (en) | Heat-preservation and corrosion-prevention elbow with dustproof function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |