CN105436041A - Steel-pipe internal-coating glass fiber reinforced plastic mouth-repairing apparatus - Google Patents
Steel-pipe internal-coating glass fiber reinforced plastic mouth-repairing apparatus Download PDFInfo
- Publication number
- CN105436041A CN105436041A CN201410480426.1A CN201410480426A CN105436041A CN 105436041 A CN105436041 A CN 105436041A CN 201410480426 A CN201410480426 A CN 201410480426A CN 105436041 A CN105436041 A CN 105436041A
- Authority
- CN
- China
- Prior art keywords
- steel
- steel pipe
- pipe
- wall
- concentric reducer
- 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
- 239000011152 fibreglass Substances 0.000 title claims abstract description 22
- 239000011248 coating agent Substances 0.000 title abstract description 6
- 238000000576 coating method Methods 0.000 title abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 64
- 239000010959 steel Substances 0.000 claims abstract description 64
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 32
- 239000000565 sealant Substances 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 244000144985 peep Species 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 abstract 2
- 238000000034 method Methods 0.000 description 8
- 206010030110 Oedema mouth Diseases 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000002788 crimping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Abstract
A disclosed steel-pipe internal-coating glass fiber reinforced plastic mouth-repairing apparatus comprises a steel-pipe reducer and a glass-fiber-reinforced-plastic neck bush arranged in the steel-pipe reducer, and the outer wall of the glass-fiber-reinforced-plastic neck bush and the inner wall of the steel-pipe reducer are in sealed connection. The outer wall of the glass-fiber-reinforced-plastic neck bush is provided with multiple seal grooves, each seal groove is inside provided with a sealing ring, and the sealing ring and the inner wall of the steel-pipe inner wall are in sealed connection. The outer-ring edges at two ends of the glass-fiber-reinforced-plastic neck bush are smeared with a sealant, and are at the reducing connection position of the steel-pipe reducer. The steel-pipe reducer is formed by butt joint of a left half pipe and a right half pipe, and at the butt joint position, the outer wall of the glass-fiber-reinforced-plastic neck bush in the steel-pipe reducer is provided with an annular groove, the groove is inside provided with a steel washer which is in weld connection with the left and right half pipes. The annular groove also is provided with a thermal-insulation layer in a sleeving way, and the thermal-insulation layer is at the inner side of the steel washer. The mouthe mouth-repairing apparatus is applicable to pipelines with a coating, no matter the medium pressure is high or low, the pipe diameter is large or small and the pipe wall is thin or thick.
Description
Technical field
The present invention relates to the patch technology of interior corrosion-proof steel pipeline, specifically steel pipe undercoating fiberglass repaired mouth device.
Background technology
For interior corrosion-resistant steel pipe; steel pipe welding is being connected in the process of pipeline; if do not protected being coated with the pipeline coating installed, then, in pipeline butt root bead, filling welding and cover welding process, because high temperature is inevitable, undercoating near weld bond is burnt.So, must take measures to protect undercoating, Here it is pipeline coating repaired mouth.
The domestic and international method for undercoating repaired mouth roughly has repairing machine method, solderless socket joint by crimping, solderless outer sleeve by crimping, memorial alloy cover method etc. at present.These methods are different, are applied to the repaired mouth operation of the internal coat pipeline of different occasion.
What the present invention adopted is that inner lining protection cover welding carries out repaired mouth operation to steel pipe undercoating, thus protection steel pipe undercoating.
Summary of the invention
The object of the present invention is to provide steel pipe undercoating fiberglass repaired mouth device, the internally coated pipeline of every band, no matter pressure medium height, no matter pipe diameter size, tube wall thin and thick can use.
In order to reach above-mentioned purpose, present invention employs following technical scheme, steel pipe undercoating fiberglass repaired mouth device, comprise steel pipe concentric reducer, frp lining cover, it is inner that described frp lining is set on steel pipe concentric reducer, and the inwall of frp lining cover outer wall and steel pipe concentric reducer is formed and seals.
Described frp lining cover outer wall offers multiple-sealed groove, arrange sealing ring and steel pipe concentric reducer inwall in seal groove to be formed and seal, sealant is smeared at the edge, outer ring, two ends of described frp lining cover, and this edge, outer ring, lining two ends is positioned at the reducing junction of steel pipe concentric reducer.
Described steel pipe concentric reducer is docked by left and right two semicanal and forms, and in the position of joint, inner frp lining cover outer wall offers annular groove, and arrange steel washer in this groove, described steel washer welds together with the semicanal of left and right two.
In described annular groove, also cover has thermal insulation layer, and described thermal insulation layer is positioned at inside steel washer.
Described steel pipe concentric reducer outer wall offers radial peep hole.
Compared to prior art, the present invention has following beneficial effect:
Its principle of the present invention and structure and excellent antiseptic property and reliable switching performance, the steel pipe for any diameter and wall thickness is all applicable.Can according to the thickness of the difference adjustment glass fiber reinforced plastic casing of pressure medium in use procedure.That is, for the pipeline that pressure medium is low, less thickness can be selected; For the pipeline that pressure medium is high, larger thickness can be selected.Length that can also be different according to the different choice of heat affected area.Therefore, the internally coated pipeline of every band, no matter pressure medium height, no matter pipe diameter size, tube wall thin and thick can adopt " steel pipe undercoating fiberglass repaired mouth device " as the repaired mouth device of pipeline coating, has good popularizing application prospect.
Accompanying drawing explanation
Fig. 1 is steel pipe undercoating fiberglass repaired mouth device schematic diagram of the present invention;
Fig. 2 is the structure chart of frp lining cover in Fig. 1;
Fig. 3 is steel pipe undercoating fiberglass repaired mouth device of the present invention withstand voltage test figure before application.
In figure, 1, interior anti-corrosive steel tube, 2, steel pipe concentric reducer, 3, sealant, 4, sealing ring, 5, thermal insulation layer, 6, just packing ring, 7, frp lining cover, 9, pressuring pump, 10, Pressure gauge, 11, blind plate, 12, suppress WATER AS FLOW MEDIUM, 13, peep hole.
Detailed description of the invention
Detailed description for the present invention and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited the present invention.
With reference to accompanying drawing 1, steel pipe undercoating fiberglass repaired mouth device, comprise steel pipe concentric reducer 2, frp lining cover 7, it is inner that described frp lining is set on steel pipe concentric reducer, and the inwall of frp lining cover outer wall and steel pipe concentric reducer is formed and seals.Described frp lining cover outer wall offers multiple-sealed groove, arrange sealing ring 4 in seal groove to be formed with steel pipe concentric reducer inwall and seal, sealant 3 is smeared at the edge, outer ring, two ends of described frp lining cover, and this edge, outer ring, lining two ends is positioned at the reducing junction of steel pipe concentric reducer.Described steel pipe concentric reducer is docked by left and right two semicanal and forms, and in the position of joint, inner frp lining cover outer wall offers annular groove, and arrange steel washer 6 in this groove, described steel washer welds together with the semicanal of left and right two.In described annular groove, also cover has thermal insulation layer 5, and described thermal insulation layer is positioned at inside steel washer.Described steel pipe concentric reducer outer wall offers radial peep hole 13.Steel pipe concentric reducer utilizes particular manufacturing craft punching press to make.
1, the steel pipe undercoating fiberglass repaired mouth device of each batch will carry out withstand voltage test according to Fig. 3 schematic diagram method, and test pressure carries out according to designing requirement.Arrange blind plate 11 at steel pipe concentric reducer two ends, connect pressuring pump 9, pipeline is arranged Pressure gauge 10 from blind plate center by a pipeline, pressuring pump is suppressed WATER AS FLOW MEDIUM 12 to steel pipe concentric reducer inside and frp lining cover inside and is carried out withstand voltage test.
2, according to engineering demand quantity, in precast plant, concentric reducer is welded on interior anti-corrosive steel tube 1,8, and clears up inner surface weld bond, then carry out interior preservative treatment.
3, internal protective cover sub-assembly and the assembling of frp lining cover, assemble according to Fig. 2.
4, the inner surface cleaning of the swollen mouth end of steel pipe; because during site operation, the inner surface of steel pipe is swollen mouth end is stained with dust, earth or greasy dirt, possibly so dust, earth must be cleaned by clean cloth; greasy dirt is cleaned, in order to avoid affect the bonding of internal protective cover and steel pipe with cleaning agent.
5, sealant preparation, by first component and the second component ratio preparation sealant of the regulation of sealant description, and controls hardening time.
6, be coated with sealant, in internal protective cover one end, be coated with sealant from 0 RunddichtringO to the outer surface of end face.A swollen mouth end inner surface of steel pipe is coated with sealant, and brushing scope is from end face 40mm-l00mm.
7, mounting glass steel internal protective cover, one end insertion steel pipe internal protective cover being scribbled bonding agent scribbles in the swollen mouth end of sealant.For the other end of internal protective cover and the swollen mouth end of another steel pipe, repeat above-mentioned steps.
8, weld, after curing agent reaches hardening time, the swollen mouth end welding after docking is completed.
The foregoing is only preferred embodiment of the present invention, be not used to limit the scope of the claims of the present invention, other use the equivalence of patent spirit of the present invention to change, and all should all belong to the scope of the claims of the present invention.
Claims (5)
1. steel pipe undercoating fiberglass repaired mouth device, is characterized in that, comprises steel pipe concentric reducer, frp lining cover, and it is inner that described frp lining is set on steel pipe concentric reducer, and the inwall of frp lining cover outer wall and steel pipe concentric reducer is formed and seals.
2. steel pipe undercoating fiberglass repaired mouth device according to claim 1, it is characterized in that, described frp lining cover outer wall offers multiple-sealed groove, arrange sealing ring and steel pipe concentric reducer inwall in seal groove to be formed and seal, sealant is smeared at the edge, outer ring, two ends of described frp lining cover, and this edge, outer ring, lining two ends is positioned at the reducing junction of steel pipe concentric reducer.
3. steel pipe undercoating fiberglass repaired mouth device according to claim 1, it is characterized in that, described steel pipe concentric reducer is docked by left and right two semicanal and forms, and in the position of joint, inner frp lining cover outer wall offers annular groove, arrange steel washer in this groove, described steel washer welds together with the semicanal of left and right two.
4. steel pipe undercoating fiberglass repaired mouth device according to claim 3, is characterized in that, in described annular groove, also cover has thermal insulation layer, and described thermal insulation layer is positioned at inside steel washer.
5. steel pipe undercoating fiberglass repaired mouth device according to claim 1, is characterized in that, when carrying out pressure test, described steel pipe concentric reducer outer wall offers radial peep hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480426.1A CN105436041A (en) | 2014-09-19 | 2014-09-19 | Steel-pipe internal-coating glass fiber reinforced plastic mouth-repairing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480426.1A CN105436041A (en) | 2014-09-19 | 2014-09-19 | Steel-pipe internal-coating glass fiber reinforced plastic mouth-repairing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105436041A true CN105436041A (en) | 2016-03-30 |
Family
ID=55546931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410480426.1A Pending CN105436041A (en) | 2014-09-19 | 2014-09-19 | Steel-pipe internal-coating glass fiber reinforced plastic mouth-repairing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105436041A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906111A (en) * | 2018-09-14 | 2020-03-24 | 四川启昌管道工程有限责任公司 | Novel steel pipeline welded connection position interior anticorrosive device |
| CN113697099A (en) * | 2021-06-11 | 2021-11-26 | 昌河飞机工业（集团）有限责任公司 | Repairing structure and method for damaged inner surface of helicopter root bushing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3508766A (en) * | 1968-10-25 | 1970-04-28 | American Mach & Foundry | Welded joint for pipe having internal coating |
| US4248373A (en) * | 1979-05-21 | 1981-02-03 | Canadian Industries Limited | Explosive charge for explosive welding of large diameter metal pipe |
| US4454977A (en) * | 1981-04-16 | 1984-06-19 | W. C. Heraeus Gmbh | Process of producing corrosion-resistant tubular connection pieces |
| CN201764160U (en) * | 2010-08-19 | 2011-03-16 | 克拉玛依市博瑞科技发展有限公司 | High-density PE pipe flange joint device |
| CN203348786U (en) * | 2013-07-05 | 2013-12-18 | 吴江市得可利纺织品有限公司 | Lined stainless steel reducer pipe fitting |
-
2014
- 2014-09-19 CN CN201410480426.1A patent/CN105436041A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3508766A (en) * | 1968-10-25 | 1970-04-28 | American Mach & Foundry | Welded joint for pipe having internal coating |
| US4248373A (en) * | 1979-05-21 | 1981-02-03 | Canadian Industries Limited | Explosive charge for explosive welding of large diameter metal pipe |
| US4454977A (en) * | 1981-04-16 | 1984-06-19 | W. C. Heraeus Gmbh | Process of producing corrosion-resistant tubular connection pieces |
| CN201764160U (en) * | 2010-08-19 | 2011-03-16 | 克拉玛依市博瑞科技发展有限公司 | High-density PE pipe flange joint device |
| CN203348786U (en) * | 2013-07-05 | 2013-12-18 | 吴江市得可利纺织品有限公司 | Lined stainless steel reducer pipe fitting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906111A (en) * | 2018-09-14 | 2020-03-24 | 四川启昌管道工程有限责任公司 | Novel steel pipeline welded connection position interior anticorrosive device |
| CN113697099A (en) * | 2021-06-11 | 2021-11-26 | 昌河飞机工业（集团）有限责任公司 | Repairing structure and method for damaged inner surface of helicopter root bushing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203500680U (en) | Bimetal composite pipe with stainless steel pipe connector and two staggered double-welding layers | |
| CN101279394A (en) | Welding method for thin-wall stainless steel pipe and copper pipe fitting | |
| CN104832746B (en) | Flange form heavy caliber PE is pipe pressurized to repair structure and its restorative procedure | |
| CN105436041A (en) | Steel-pipe internal-coating glass fiber reinforced plastic mouth-repairing apparatus | |
| CN204647619U (en) | Anticorrosion composite pipe connects special welding flanged joint | |
| CN204493936U (en) | The joint connecting structure of anticorrosion composite pipe | |
| CN103574197A (en) | Weldable steel flange with embedded O-shaped sealing rings | |
| CN202580486U (en) | Electric-welding connecting flare-type joint of small-bore plastic-coated steel pipe | |
| CN203413252U (en) | Device for connecting inner and outer anticorrosive steel plastic composite pipes | |
| CN203036119U (en) | Welding-free insulating joint | |
| CN107269958B (en) | A kind of flange form steam is with row pipe and its installation method | |
| CN201198928Y (en) | Seal device of building wall through hole with guarding tube | |
| CN211179652U (en) | Novel gas pipeline joint coating degree of corrosion's check out test set | |
| CN204373245U (en) | A kind of solar water heater pressure-bearing enamel inner container heat exchanger | |
| CN102734574A (en) | Fitting assembly and safety lock line connection system including the assembly | |
| CN201964089U (en) | Anticorrosion pipeline | |
| KR101281507B1 (en) | Tube for inhibiting corrosion of pipe connecting portion | |
| CN2826126Y (en) | Internal patch joint for polytetrafluoroethylene pipe | |
| CN204062232U (en) | For the liner sliding sleeve of pipe end docking | |
| CN105014298A (en) | Method for constructing and connecting anticorrosive gas and liquid delivery steel pipes | |
| CN102650356A (en) | Steel pipe collar joint coating method | |
| CN105179849A (en) | Anti-sedimentation joint structure of buried heat preservation steel pipes and construction method of anti-sedimentation joint structure | |
| CN205173750U (en) | Stainless steel covers moulds hose | |
| CN205101719U (en) | Anti -drop formula pyrocondensation bushing pipe box | |
| RU142274U1 (en) | TUBE WITH PIPES AND INTERNAL COATING |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160330 |