CN2499665Y - Anti-rust weldable coating thermal insulation pipe - Google Patents
Anti-rust weldable coating thermal insulation pipe Download PDFInfo
- Publication number
- CN2499665Y CN2499665Y CN 01260286 CN01260286U CN2499665Y CN 2499665 Y CN2499665 Y CN 2499665Y CN 01260286 CN01260286 CN 01260286 CN 01260286 U CN01260286 U CN 01260286U CN 2499665 Y CN2499665 Y CN 2499665Y
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- CN
- China
- Prior art keywords
- pipe
- epoxy
- thermal insulation
- weight portion
- antirust
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an anti-rust weldable coating thermal insulation pipe, wherein the exterior of the divided edge of the end of the pipe is provided with an anti-rust weldable layer which can be welded directly. The utility model comprises a steel pipe, a reserved welding section, a divided edge, the anti-rust weldable layer, an epoxy erosion resistant coating, an epoxy glass microballoon insulating layer, a transverse porous plate and a polypropylene bushing. The utility model has erosion resistant and heat preservative performances, and the anti-rust weldable layer can prevent the divided edge from rusting and does not influence the welding of the divided edge of the end of the pipe, and the welding crafts and quality for hand welding, carbon dioxide semiautomatic welding and union melt welding.
Description
The utility model relates to a kind of thermal insulation pipe of antirust weldable coating layer, and the pipe end groove face scribbles antirust weldable coating layer, can directly carry out the pipe end welding.
Pipe end will carry out groove processing and processing of rust removing when existing hot insulated line welded, big, the difficult construction quality that guarantees of field operation inclement condition, constructional difficulties.Prefabricate thermal insulation pipe, the most existing corrosion of pipe end when being transported to site operation in the corrosion-inhibiting coating influence welding of pipe end coating, be removed in advance.Existing thermal insulation pipe corrosion-resistant thermal insulation performance such as polyurethane foam insulation pipe influence antiseptic property and thermal insulation property because of suction.
The purpose of this utility model is to avoid above-mentioned deficiency of the prior art and provides a kind of and have good corrosion-resistant thermal insulation performance, do not need the on-the-spot processing of rust removing of pipe end groove can directly manage the thermal insulation pipe of the antirust weldable coating layer of welding.
The purpose of this utility model can reach by following measure.
The thermal insulation pipe of antirust weldable coating layer of the present utility model, comprise steel pipe 1, reservation welding section 2 at steel pipe 1 two ends, it is characterized in that groove 3 being arranged at the two ends of steel pipe 1, scribble antirust weldable coating layer 4 on the surface of reserving welding section 2 and groove 3, outer surface at steel pipe 1 has epoxy external anti-corrosion layer 5 in turn, epoxy-glass microballoon thermal insulation layer 6, polypropylene sleeve pipe 7, annular space between steel pipe 1 and polypropylene sleeve pipe 7 has 2～12 horizontal porous barriers 8, wherein antirust weldable coating layer 4 is by 1 weight account polyethylene butyral, 0.5～2 parts by weight of ethanol, 0.5～2 weight portion butanols, 0.5 the hardening thing of～3 weight portion aluminum pastes is formed, epoxy-glass microballoon thermal insulation layer 6 is made up of 1 weight portion epoxy foam Bond and 1～4 weight portion glass microballoon.
Be the length 12m of steel pipe 1 preferably, external diameter of pipe 159mm, wall thickness 7mm, the every end of length of reserving welding section 2 respectively is 100mm, the groove angle of groove 3 is 45 °, the thickness of antirust weldable coating layer 4 is 30 μ m, the thickness of epoxy external anti-corrosion layer 5 is 300 μ m, the external diameter of polypropylene sleeve pipe 7 is 204mm, wall thickness 10mm, laterally porous barrier 8 has 5, wherein per 1 interior circular diameter is 160mm, outside diameter is 180mm, thickness is 20mm, between interior circle and cylindrical, be distributed with 8 stiffening ribs by radiation shape, antirust weldable coating layer 4 is by 1 weight account polyethylene butyral, 1 parts by weight of ethanol, 0.5 weight portion butanols, 2.5 the hardening thing of weight portion aluminum paste is formed, epoxy-glass microballoon thermal insulation layer 6 is made up of 1 weight portion epoxy foam Bond and 2 weight portion glass microballoons.
The manufacture process of the thermal insulation pipe of antirust weldable coating layer of the present utility model is as follows: the outer surface derusting by sandblasting of steel pipe 1, coating epoxy external anti-corrosion layer 5, two end machining grooves 3 of steel pipe 1, and at the antirust weldable coating layer 4 of surface applied of reserving welding section 2 and groove 3, at the outer surface of the steel pipe 1 that the scribbles epoxy external anti-corrosion layer 5 horizontal porous barrier 8 that bonds, by equidistantly distributing, put polypropylene sleeve pipe 7 again, the annular space spray epoxy-glass microballoon thermal insulation layer 6 between steel pipe 1 and polypropylene sleeve pipe 7.
The utility model compared with prior art has following advantage:
1, the thermal insulation pipe of antirust weldable coating layer, pipe end can directly weld, do not need to carry out the scene rust cleaning of groove and remove former coating, 4 pairs of manual weldings of this antirust weldable coating layer, carbon dioxide semiautomatic welding and Lincoln weld all do not influence welding procedure and quality, spatter thing and welding slag easily come off, little, the nonhazardous of weldering dirt penetrating odor during welding.Have good anti-corrosion performance in addition, have certain cathodic protection effect, better with the corrosion-inhibiting coating compatibility of surface layer.
2, have the excellent insulating barrier propterty, epoxy-glass microballoon thermal insulation layer 6 has fabulous water-proof performance and thermal insulation property, and has strong cohesive force between adjacent layer, is difficult for producing stratified deformation, and can bears big external force.Laterally porous barrier 8 available epoxy polymer or hard polypropylene plastics are made, and can bear big external force, and insulation layer thickness is evenly distributed.
3, easy construction, reliable performance.
Below in conjunction with description of drawings.
Fig. 1 is the longitudinal sectional drawing of the thermal insulation pipe of antirust weldable coating layer;
Fig. 2 is its left view;
Fig. 3 is the sectional view of horizontal porous barrier 8.
Among the figure: the 1-steel pipe; 2-reserves welding section; The 3-groove; The antirust weldable coating layer of 4-; 5-epoxy external anti-corrosion layer; 6-epoxy-glass microballoon thermal insulation layer; 7-polypropylene sleeve pipe; The horizontal porous barrier of 8-.
The thermal insulation pipe of antirust weldable coating layer is used for hot insulated line, steel pipe 1 long 12m, external diameter of pipe 159mm, wall thickness 7mm, the every end of length of reserving welding section 2 respectively is 100mm, the groove angle of groove 3 is 45 °, the thickness of antirust weldable coating layer 4 is 30 μ m, the thickness of epoxy external anti-corrosion layer 5 is 300 μ m, the external diameter 204mm of polypropylene sleeve pipe 7, wall thickness 10mm, laterally porous barrier 8 has 5, the interior circular diameter of each is 160mm, outside diameter is 180mm, and thickness is 20mm, and 8 auxilliary stiffening ribs of penetrating the shape distribution are arranged, antirust weldable coating layer 4 is by 1 weight account polyethylene butyral, 1 parts by weight of ethanol, 0.5 weight portion butanols, 2.5 the hardening thing of weight portion aluminum paste is formed, wherein aluminum paste can adopt the mixture of 1 weight portion aluminium powder and 1 weight portion butanols to be made into; Epoxy-glass microballoon thermal insulation layer 6 is made up of 1 weight portion epoxy foam Bond and 2 weight portion glass microballoons.
Claims (2)
1, a kind of thermal insulation pipe of antirust weldable coating layer, comprise steel pipe (1), reservation welding section (2) at steel pipe (1) two ends, it is characterized in that groove (3) being arranged at the two ends of steel pipe (1), on the surface of reserving welding section (2) and groove (3) antirust weldable coating layer (4) is arranged, outer surface at steel pipe (1) has epoxy external anti-corrosion layer (5) in turn, epoxy-glass microballoon thermal insulation layer (6), polypropylene sleeve pipe (7), annular space between steel pipe (1) and polypropylene sleeve pipe (7) has 2～12 horizontal porous barriers (8), wherein antirust weldable coating layer (4) is by 1 weight account polyethylene butyral, 0.5～2 parts by weight of ethanol, 0.5～2 weight portion butanols, 0.5 the hardening thing of～3 weight portion aluminum pastes is formed, epoxy-glass microballoon thermal insulation layer (6) is made up of 1 weight portion epoxy foam Bond and 1～4 weight portion glass microballoon.
2, the thermal insulation pipe of antirust weldable coating layer according to claim 1, the length 12m that it is characterized in that steel pipe (1), external diameter of pipe 159mm, wall thickness 7mm, the every end of length of reserving welding section (2) respectively is 100mm, the groove angle of groove (3) is 45 °, the thickness of antirust weldable coating layer (4) is 30 μ m, the thickness of epoxy external anti-corrosion layer (5) is 300 μ m, the external diameter of polypropylene sleeve pipe (7) is 204mm, wall thickness 10mm, laterally porous barrier (8) has 5, wherein per 1 interior circular diameter is 160mm, outside diameter is 180mm, thickness is 20mm, between interior circle and cylindrical, be distributed with 8 stiffening ribs by radiation shape, antirust weldable coating layer (4) is by 1 weight account polyethylene butyral, 1 parts by weight of ethanol, 0.5 weight portion butanols, 2.5 the hardening thing of weight portion aluminum paste is formed, epoxy-glass microballoon thermal insulation layer (6) is made up of 1 weight portion epoxy foam Bond and 2 weight portion glass microballoons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01260286 CN2499665Y (en) | 2001-09-27 | 2001-09-27 | Anti-rust weldable coating thermal insulation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01260286 CN2499665Y (en) | 2001-09-27 | 2001-09-27 | Anti-rust weldable coating thermal insulation pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2499665Y true CN2499665Y (en) | 2002-07-10 |
Family
ID=33668473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01260286 Expired - Lifetime CN2499665Y (en) | 2001-09-27 | 2001-09-27 | Anti-rust weldable coating thermal insulation pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2499665Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295031C (en) * | 2004-09-27 | 2007-01-17 | 大庆油田建设集团 | External anticorrusion layer opening mending method for polyethylene anti corrusion pipeline |
| CN102352940A (en) * | 2011-09-28 | 2012-02-15 | 杭州杭氧低温液化设备有限公司 | Vacuum heat insulating low-temperature pipe joint |
| CN105694614A (en) * | 2016-02-03 | 2016-06-22 | 杭州钱航船舶修造有限公司 | Aluminum and steel plate for ships, method for welding aluminum and steel plate and method for preparing paint |
| CN110469720A (en) * | 2019-09-12 | 2019-11-19 | 中国石油大学(华东) | A kind of oil field development carbon dioxide drive surface duct |
-
2001
- 2001-09-27 CN CN 01260286 patent/CN2499665Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295031C (en) * | 2004-09-27 | 2007-01-17 | 大庆油田建设集团 | External anticorrusion layer opening mending method for polyethylene anti corrusion pipeline |
| CN102352940A (en) * | 2011-09-28 | 2012-02-15 | 杭州杭氧低温液化设备有限公司 | Vacuum heat insulating low-temperature pipe joint |
| CN105694614A (en) * | 2016-02-03 | 2016-06-22 | 杭州钱航船舶修造有限公司 | Aluminum and steel plate for ships, method for welding aluminum and steel plate and method for preparing paint |
| CN105694614B (en) * | 2016-02-03 | 2018-04-10 | 杭州钱航船舶修造有限公司 | Welding method, preparation method for coating and the aluminium steel plate of ship aluminium steel plate |
| CN110469720A (en) * | 2019-09-12 | 2019-11-19 | 中国石油大学(华东) | A kind of oil field development carbon dioxide drive surface duct |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110927 Granted publication date: 20020710 |