CN106895227A - Heat insulation prefabricated underground pipe - Google Patents
Heat insulation prefabricated underground pipe Download PDFInfo
- Publication number
- CN106895227A CN106895227A CN201510951442.9A CN201510951442A CN106895227A CN 106895227 A CN106895227 A CN 106895227A CN 201510951442 A CN201510951442 A CN 201510951442A CN 106895227 A CN106895227 A CN 106895227A
- Authority
- CN
- China
- Prior art keywords
- layer
- underground pipe
- prefabricated
- heat
- insulation
- 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
- 238000009413 insulation Methods 0.000 title claims abstract description 27
- 239000010410 layer Substances 0.000 claims abstract description 57
- 239000011241 protective layer Substances 0.000 claims abstract description 11
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 229920001903 high density polyethylene Polymers 0.000 description 5
- 239000004700 high-density polyethylene Substances 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 230000003260 anti-sepsis Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a kind of heat insulation prefabricated underground pipe, it is related to compound tube, when being installed using crane for solving existing underground pipe, holds caducous problem.It includes the prefabricated tube layer, heat-insulation layer and the protective layer that set from inside to outside successively; the edge at the prefabricated tube layer two ends is outer to spill protective layer; the prefabricated tube layer is made up of internal layer and outer layer; the internal layer and outer layer are spaced from each other to form cavity; fixed by connector between the internal layer and outer layer, the outer layer two ends are provided with perforate.By setting composite bed, realization both can guarantee that the sealing of internal layer, and lifting safety is can guarantee that again.
Description
Technical field
It is a kind of heat insulation prefabricated underground pipe specifically the present invention relates to compound tube.
Background technology
Underground pipe is adapted to the insulation prepressing reserving works of various media of the conveying in the range of -50 DEG C to 150 DEG C, and it is widely used in the insulation prepressing reserving works of the industries such as concentrated supply of heating in the city, greenhouse, freezer, colliery, Oil Port, chemical industry.
Underground pipe can be imbedded directly in underground or water, and easy construction is rapid, comprehensive cost low, but existing underground pipe, when being installed using crane, suspension hook directly tangles the mouth of pipe of underground pipe, and when so lifting, underground pipe easily comes off, and there is potential safety hazard.
The content of the invention
The present invention seeks to aim to provide a kind of heat insulation prefabricated underground pipe for lifting by crane safety.To realize above-mentioned technical purpose, the technical solution adopted by the present invention is as follows：
Heat insulation prefabricated underground pipe; including the prefabricated tube layer, heat-insulation layer and the protective layer that set from inside to outside successively; the edge at the prefabricated tube layer two ends is outer to spill protective layer; the prefabricated tube layer is made up of internal layer and outer layer; the internal layer and outer layer are spaced from each other to form cavity; fixed by connector between the internal layer and outer layer, the outer layer two ends are provided with perforate.
Using the invention of above-mentioned technical proposal, by setting compound prefabricated tube layer, perforate is located at outer layer two ends, both can guarantee that the sealing of internal layer, and lifting safety is can guarantee that again.
By setting different size of perforate, it is adapted to the suspension hook of different model, it is to avoid suspension hook and opening contacts are insecure.Heat-insulation layer uses polyurethane, and its effect one is waterproof, and two is insulation, and three is support heat supply network deadweight.Protective layer uses high density polyethylene (HDPE), and its effect one is that protection polyurethane insulation coating exempts from mechanical hard thing destruction, and two is anti-corrosion waterproof.
Compared to existing technology, simple structure improves the security of construction to the present invention.
Brief description of the drawings
The nonlimiting examples that the present invention can be given by accompanying drawing are further illustrated；
Fig. 1 is the structural scheme of mechanism of heat insulation prefabricated underground pipe of the present invention；
Fig. 2 is the front view of heat insulation prefabricated underground pipe of the present invention；
Fig. 3 is the top view of heat insulation prefabricated underground pipe of the present invention；
Fig. 4 is the structural scheme of mechanism of heat insulation prefabricated underground pipe of the present invention；
Main element symbol description is as follows：
Prefabricated tube layer 1, internal layer 101, outer layer 102, heat-insulation layer 2, protective layer 3, connector 4, perforate 5.
Specific embodiment
In order that those skilled in the art may be better understood the present invention, technical solution of the present invention is further illustrated with reference to the accompanying drawings and examples.
Such as Fig. 1; Fig. 2; shown in Fig. 3; heat insulation prefabricated underground pipe, including prefabricated tube layer 1, heat-insulation layer 2 and the protective layer 3 for setting from inside to outside successively, the edge at the two ends of prefabricated tube layer 1 is outer to spill protective layer 3; prefabricated tube layer 1 is made up of internal layer 101 and outer layer 102; internal layer 101 and outer layer 102 are spaced from each other to form cavity, are fixed by connector 4 between internal layer 101 and outer layer 102, and the two ends of outer layer 102 are provided with perforate 5.
As shown in figure 4, in preferred embodiment, perforate 5 is different size of two arranged along tube wall, and prefabricated tube layer 1 uses seamless pipe, heat-insulation layer 2 to use polyurethane, protective layer 3 to use high density polyethylene (HDPE).Hard polyurethane foam heat-insulation layer 2 is closely adhered to the crust of prefabricated tube layer 1, has completely cut off the infiltration of air and water, can play good antisepsis.Its foam hole is all closure simultaneously, and the rate of closed hole of polyurethane foam is up to 92% or so, water imbibition very little.The shell of high density polyethylene protective coating 3 has good anti-corrosion, insulation and mechanical performance.
The hard polyaminoester that thermal conductivity factor is low, heat-proof quality is good is used as heat-barrier material, with excellent thermal insulation.The overall thermal losses of heat supply pipeline is greatly reduced, heat supply network heat loss is 2%, the standard requirement less than international 10%.
The heat insulation prefabricated underground pipe that the present invention is provided is described in detail above.The explanation of specific embodiment is only intended to help and understands the method for the present invention and its core concept.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
Claims (1)
1. heat insulation prefabricated underground pipe, including prefabricated tube layer, heat-insulation layer and the protective layer for setting from inside to outside successively, the edge at the prefabricated tube layer two ends is outer to spill protective layer, it is characterised in that：The prefabricated tube layer is made up of internal layer and outer layer, and the internal layer and outer layer are spaced from each other to form cavity, are fixed by connector between the internal layer and outer layer, and the outer layer two ends are provided with perforate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510951442.9A CN106895227A (en) | 2015-12-19 | 2015-12-19 | Heat insulation prefabricated underground pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510951442.9A CN106895227A (en) | 2015-12-19 | 2015-12-19 | Heat insulation prefabricated underground pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106895227A true CN106895227A (en) | 2017-06-27 |
Family
ID=59189550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510951442.9A Pending CN106895227A (en) | 2015-12-19 | 2015-12-19 | Heat insulation prefabricated underground pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106895227A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116215014A (en) * | 2023-02-28 | 2023-06-06 | 广东省亚克迪新材料科技有限公司 | Corrosion-resistant power transmission buried pipe with strong structure |
-
2015
- 2015-12-19 CN CN201510951442.9A patent/CN106895227A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116215014A (en) * | 2023-02-28 | 2023-06-06 | 广东省亚克迪新材料科技有限公司 | Corrosion-resistant power transmission buried pipe with strong structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170627 |