CN201589041U - Plastic corrugated external-protecting direct-buried heat-insulating pipe - Google Patents
Plastic corrugated external-protecting direct-buried heat-insulating pipe Download PDFInfo
- Publication number
- CN201589041U CN201589041U CN 201020062305 CN201020062305U CN201589041U CN 201589041 U CN201589041 U CN 201589041U CN 201020062305 CN201020062305 CN 201020062305 CN 201020062305 U CN201020062305 U CN 201020062305U CN 201589041 U CN201589041 U CN 201589041U
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- Prior art keywords
- direct
- steel pipe
- protecting
- thermal insulation
- external
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- 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 - Fee Related
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Abstract
The utility model relates to a plastic corrugated external-protecting direct-buried heat-insulating pipe, which comprises a steel pipe and a hard polyurethane heat-insulating layer, wherein the steel pipe is coated by the hard polyurethane heat-insulating layer, and external peripheral layers of the steel pipe and the hard polyurethane heat-insulating layer are coated by a plastic external-protecting corrugated casing. The utility model resolves the problem that general direct-buried plastic external-protecting heat-insulating pipes deform under pressure during storing, conveying and direct burying processes.
Description
Technical field
The utility model relates to a kind of direct-buried insulated pipe, exactly, is that a kind of plastic ripple protects direct-buried insulated pipe outward.
Technical background
For guaranteeing the transmission of medium under low temperature environment, it is direct buried generally to adopt the conveyance conduit that is coated with thermal insulation layer to carry out, to reduce the temperature drop influence of external environment to transmission medium.Its advantage is: can direct-burried, reduce trench, and improve effect, whole pipeline thermal insulation layer integral seamless, thermal loss is little, and is anticorrosion, water-fast, prolongs pipeline working life.The outer protecting crust of the direct-buried insulated pipe that uses all adopts extrusion plastic straight tube shell at present, behind long-term stacking, transportation, direct-burried, owing to be subjected to the effect of gravity, under long-time squeezed state, causes thermal insulation layer distortion or eccentric easily.
Summary of the invention
For overcoming the defective of existing direct-buried insulated pipe, the utility model provides a kind of plastic ripple to protect direct-buried insulated pipe outward.
The technological scheme that the utility model adopted is:
A kind of plastic ripple protects direct-buried insulated pipe outward, comprises steel pipe and hard polyaminoester thermal insulation layer, and steel pipe is wrapped up by the hard polyaminoester thermal insulation layer, and steel pipe and hard polyaminoester thermal insulation layer circumference are outer to protect the ripple shell outward for plastics.
The utility model has the advantages that:
The utility model adopts plastics to protect the ripple shell outward, has increased the compressive strength of thermal insulation layer, eliminates extrusion-deformation in stacking, the transportation process, guarantees that thermal insulation layer reasonably standing intact in the life time, prolongs the characteristics in working life of steel pipe.More be applicable to direct buried.
Description of drawings
Fig. 1 is the utility model transverse cross.
Fig. 2 is that Fig. 1 analyses and observe diagrammatic sketch to section in length and breadth.
Among Fig. 1-2: 1-steel pipe 2-hard polyaminoester thermal insulation layer 3-plastics protect bellows outward.
Embodiment
A kind of plastic ripple protects direct-buried insulated pipe outward, comprises steel pipe 1 and hard polyaminoester thermal insulation layer 2, and steel pipe 1 is by hard polyaminoester thermal insulation layer 2 parcels, and steel pipe 1 and hard polyaminoester thermal insulation layer 2 circumference outer layer plastics protect ripple shell 3 outward.Protecting direct-buried insulated pipe outward is that steel pipe 1, hard polyaminoester thermal insulation layer 2 and plastics protect ripple shell 3 formation three-deckers outward.
Steel pipe 1 and plastics protect outward and fill hard polyaminoester thermal insulation layer 2 between the bellows 3.Can carry out prefabricated at precasting yard easily.Plastic ripple protects direct-buried insulated pipe moulding scheme outward two kinds of methods, the one, the plastics of extruding and moulding protect the ripple shell outward, be inserted in steel pipe 1, cavity between cambial wall, the sealed cavity two ends, inject the hard polyaminoester thermal insulating material in cavity, hard polyaminoester thermal insulating material foaming back is closely knit at interlayer, forms thermal insulation pipe; The 2nd, the thermoplastic bellows is extruded with the steel pipe reach synchronous, under ripple mould and water-cooled effect, plastics protect 3 setting of ripple shell outward, and outside plastics, protect in the cavity of 1 of ripple shell 3 and steel pipe and carry out the defeated synchronously material of hard polyaminoester thermal insulating material, foaming, filling and closely knit, after single steel pipe insulation secret room is filled, cutting separately forms whole plastic ripple and protects direct-buried insulated pipe outward.Tube-making process can be produced continuously.
Claims (1)
1. a plastic ripple protects direct-buried insulated pipe outward, comprise steel pipe (1) and hard polyaminoester thermal insulation layer (2), steel pipe (1) be is characterized in that by hard polyaminoester thermal insulation layer (2) parcel: steel pipe (1) and hard polyaminoester thermal insulation layer (2) circumference are outer to protect ripple shell (3) outward for plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020062305 CN201589041U (en) | 2010-01-06 | 2010-01-06 | Plastic corrugated external-protecting direct-buried heat-insulating pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020062305 CN201589041U (en) | 2010-01-06 | 2010-01-06 | Plastic corrugated external-protecting direct-buried heat-insulating pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201589041U true CN201589041U (en) | 2010-09-22 |
Family
ID=42748824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020062305 Expired - Fee Related CN201589041U (en) | 2010-01-06 | 2010-01-06 | Plastic corrugated external-protecting direct-buried heat-insulating pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201589041U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299389A (en) * | 2015-12-08 | 2016-02-03 | 朗格斯特哈尔滨环保节能产品制造有限公司 | Thermal insulation pipe with corrugated outer protective pipe and manufacturing method for thermal insulation pipe |
| CN111926724A (en) * | 2020-06-30 | 2020-11-13 | 中船重工海为郑州高科技有限公司 | Pin-connected panel steel corrugated pipe culvert |
-
2010
- 2010-01-06 CN CN 201020062305 patent/CN201589041U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299389A (en) * | 2015-12-08 | 2016-02-03 | 朗格斯特哈尔滨环保节能产品制造有限公司 | Thermal insulation pipe with corrugated outer protective pipe and manufacturing method for thermal insulation pipe |
| CN105299389B (en) * | 2015-12-08 | 2018-05-29 | 朗格斯特哈尔滨环保节能产品制造有限公司 | Insulating tube and production method with ripple outer protection tube |
| CN111926724A (en) * | 2020-06-30 | 2020-11-13 | 中船重工海为郑州高科技有限公司 | Pin-connected panel steel corrugated pipe culvert |
| CN111926724B (en) * | 2020-06-30 | 2022-04-08 | 中船重工海为郑州高科技有限公司 | Pin-connected panel steel corrugated pipe culvert |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TIANHUA INSTITUTE OF CHEMICAL MACHINERY + AUTOMATI Free format text: FORMER NAME: TIANHUA CHEMICAL MACHINERY + AUTOMATION RESEARCH INST. |
|
| CP03 | Change of name, title or address |
Address after: 730060 Gansu city of Lanzhou province Xigu District Heshui Road No. 3 Patentee after: Tianhua Institute of Chemical Machinery & Automation Co., Ltd. Address before: 730050 Gansu city of Lanzhou province Xigu District Heshui Road No. 3 Patentee before: Tianhua Chemical Machinery & Automation Research Inst. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20130106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |