CN202852332U - Double-layer epoxy powder antiseptic polyurethane thermal insulation pipeline - Google Patents
Double-layer epoxy powder antiseptic polyurethane thermal insulation pipeline Download PDFInfo
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- CN202852332U CN202852332U CN 201220568588 CN201220568588U CN202852332U CN 202852332 U CN202852332 U CN 202852332U CN 201220568588 CN201220568588 CN 201220568588 CN 201220568588 U CN201220568588 U CN 201220568588U CN 202852332 U CN202852332 U CN 202852332U
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Abstract
A double-layer epoxy powder antiseptic polyurethane thermal insulation pipeline mainly solves the problem that the existing double-layer epoxy powder antiseptic pipeline is bad in thermal insulation property. The double-layer epoxy powder antiseptic polyurethane thermal insulation pipeline is characterized in that a polyethylene protective tube (5) is arranged outside a double-layer epoxy powder antiseptic layer (2). A polyurethane insulation layer (4) is arranged between the double-layer epoxy powder antiseptic layer (2) and the polyethylene protective tube (5) in a filled mode. Waterproof caps (3) are fixed at the end portion of the polyurethane insulation layer (4) and the polyethylene protective tube (5). The double-layer epoxy powder antiseptic polyurethane thermal insulation pipeline has the advantages of being good in antiseptic property and thermal insulation property.
Description
Technical field
The utility model relates to the pipeline of a kind of transferring oil, gas, water, specifically the anticorrosion polyurethane heat-preserving pipeline of a kind of dual-layer epoxy powder.
Background technique
Dual-layer epoxy powder (FBE) anti-corrosion pipeline begins to use on the section of tubing engineering at home at present, such as west bank, West-East National Gas Transmission Project Huaihe River-Shanghai section, at mountain range, mound and dense waterway net region, soil corrosivity is stronger, Large River, lake etc. are passed through more, adopt the anticorrosion circuit of double-deck FBE to be about 480km, anticorrosion at the anticorrosion dual-layer epoxy powder that also adopted of Pipeline bend pipe.Facts have proved that coating quality meets the West-East National Gas Transmission Project requirement fully, remedied the weak link of engineering corrosion-resistant system, improved whole anticorrosion class, fully showed the technical advantage of dual―layer fusion bonded epoxy protective system.But the thermal insulation property in this double-layer epoxy powder anticorrosive pipe road compares relatively poor, makes it be not suitable for using at extremely frigid zones.
Summary of the invention
In order to overcome the poor deficiency of existing double-layer epoxy powder anticorrosive pipe road thermal insulation property, the utility model provides a kind of dual-layer epoxy powder anticorrosion polyurethane heat-preserving pipeline, the anticorrosion polyurethane heat-preserving pipeline of this dual-layer epoxy powder not only antiseptic property is good, also has good thermal insulation property simultaneously.
The technical solution of the utility model is: the anticorrosion polyurethane heat-preserving pipeline of a kind of dual-layer epoxy powder, comprise pipeline, pipeline external scribbles the dual-layer epoxy powder anticorrosive coat, described dual-layer epoxy powder anticorrosive coat outside is provided with the polyethylene pillar, be filled with polyurethane insulation coating between dual-layer epoxy powder anticorrosive coat and the polyethylene pillar, and the end of described polyurethane insulation coating and polyethylene pillar is fixed with tarpaulin.
The utlity model has following beneficial effect: owing to take such scheme, be externally coated with polyurethane insulation coating at the dual-layer epoxy powder anticorrosive coat, the dual-layer epoxy powder anticorrosive coat plays antisepsis, and polyurethane insulation coating plays the effect of insulation, and the polyurethane insulation coating end is fixed with tarpaulin, avoids in the polyurethane insulation coating water inlet moist and affect heat insulation effect.Therefore, this pipeline not only antiseptic property is good, and has good thermal insulation property, has solved existing double-layer epoxy powder anticorrosive pipe road and has been not suitable for the problem used at extremely frigid zones.
Description of drawings
Fig. 1 is structural representation of the present utility model.
1-pipeline among the figure, 2-dual-layer epoxy powder anticorrosive coat, 3-tarpaulin, 4-polyurethane insulation coating, 5-polyethylene pillar.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, the anticorrosion polyurethane heat-preserving pipeline of a kind of dual-layer epoxy powder comprises pipeline 1, and pipeline 1 is steel, pipeline 1 is through after the derusting by sandblasting, the outside scribbles dual-layer epoxy powder anticorrosive coat 2, and powder spray adopts high pressure electrostatic painting technique, makes electric charge on the powder belt by high-pressure electrostatic spray gun, effectively be adsorbed onto the steel tube surface through heating, the powder thawing of being heated, and flow, further levelling also covers whole steel tube surface.Described dual-layer epoxy powder anticorrosive coat 2 outsides are provided with polyethylene pillar 5, be filled with polyurethane insulation coating 4 between dual-layer epoxy powder anticorrosive coat 2 and the polyethylene pillar 5, polyurethane insulation coating 4 adopts the high-pressure foam technology, isocyanates and combined polyether form the urethane foam thermal insulation layer by the foaming of foaming machine High Pressure mixed at high speed.The end of described polyurethane insulation coating 4 and polyethylene pillar 5 is fixed with tarpaulin 3, and tarpaulin 3 is comprised of polyethylene waterproof cap base material and primer two-part, and base material is radiant crosslinked polyethylene, and primer is hot melt adhesive.The pyrocondensation of tarpaulin 3 is than less than 0.45, tarpaulin is enclosed within pipeline after, tarpaulin is heated to the hot melt adhesive fusing, tarpaulin shrinks with polyethylene pillar 5 and pipeline 1 bonding.
The anticorrosion polyurethane heat-preserving pipeline of this dual-layer epoxy powder is owing to there is dual-layer epoxy powder anticorrosive coat 2, the dual-layer epoxy powder coating is done as a whole, antikathode peel off and adhesion aspect performance have significantly and to increase, the shock resistance maximum can be reached for 7.5J, the scratch resistance of dual-layer epoxy powder coating is better than PE anticorrosive coat, improve whole anti-corrosive properties, be better than now widely used other coatings.Simultaneously, this pipeline has adopted polyurethane insulation coating 4, and polyurethane is the thermal insulation property best material of generally acknowledging at present, its thermal conductivity is low, 0.022～0.033W/(m Κ only), be equivalent to half of extruded sheet, be at present in all thermal insulating materials thermal conductivity minimum.The coating of two kinds of function admirables is combined together to form a kind of novel duct products, good pipeline corrosion protection insulating product will be provided the Productivity Construction in oil field, remedied the defective of other corrosion-resistant thermal insulation products.
Claims (1)
1. anticorrosion polyurethane heat-preserving pipeline of dual-layer epoxy powder, comprise pipeline (1), pipeline (1) outside scribbles dual-layer epoxy powder anticorrosive coat (2), it is characterized in that: described dual-layer epoxy powder anticorrosive coat (2) outside is provided with polyethylene pillar (5), be filled with polyurethane insulation coating (4) between dual-layer epoxy powder anticorrosive coat (2) and the polyethylene pillar (5), and the end of described polyurethane insulation coating (4) and polyethylene pillar (5) is fixed with tarpaulin (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220568588 CN202852332U (en) | 2012-11-01 | 2012-11-01 | Double-layer epoxy powder antiseptic polyurethane thermal insulation pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220568588 CN202852332U (en) | 2012-11-01 | 2012-11-01 | Double-layer epoxy powder antiseptic polyurethane thermal insulation pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202852332U true CN202852332U (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220568588 Expired - Lifetime CN202852332U (en) | 2012-11-01 | 2012-11-01 | Double-layer epoxy powder antiseptic polyurethane thermal insulation pipeline |
Country Status (1)
| Country | Link |
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| CN (1) | CN202852332U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455778A (en) * | 2014-09-23 | 2015-03-25 | 吴汉超 | Manufacturing method for five-layer stainless steel-glass fiber reinforced plastic compound heat preservation pipe with pipe joint |
| CN104482328A (en) * | 2014-12-09 | 2015-04-01 | 上海海隆石油化工研究所 | Anticorrosion insulation multilayer system for deep-sea steel delivery pipes |
| CN107448691A (en) * | 2017-07-18 | 2017-12-08 | 河南三杰热电科技股份有限公司 | One kind is aerial to use polyurethane foam prefabricated thermal insulation pipeline and production method |
| CN109237206A (en) * | 2018-10-30 | 2019-01-18 | 中投（天津）热力股份有限公司 | A kind of finished product thermal insulating flat mouth technique |
| CN112856054A (en) * | 2021-02-04 | 2021-05-28 | 辽宁宇航钢塑管制造有限公司 | Hard polyurethane foam plastic anti-corrosion heat-insulation pipe and preparation process thereof |
-
2012
- 2012-11-01 CN CN 201220568588 patent/CN202852332U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455778A (en) * | 2014-09-23 | 2015-03-25 | 吴汉超 | Manufacturing method for five-layer stainless steel-glass fiber reinforced plastic compound heat preservation pipe with pipe joint |
| CN104482328A (en) * | 2014-12-09 | 2015-04-01 | 上海海隆石油化工研究所 | Anticorrosion insulation multilayer system for deep-sea steel delivery pipes |
| CN107448691A (en) * | 2017-07-18 | 2017-12-08 | 河南三杰热电科技股份有限公司 | One kind is aerial to use polyurethane foam prefabricated thermal insulation pipeline and production method |
| CN109237206A (en) * | 2018-10-30 | 2019-01-18 | 中投（天津）热力股份有限公司 | A kind of finished product thermal insulating flat mouth technique |
| CN112856054A (en) * | 2021-02-04 | 2021-05-28 | 辽宁宇航钢塑管制造有限公司 | Hard polyurethane foam plastic anti-corrosion heat-insulation pipe and preparation process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
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| CX01 | Expiry of patent term |