CN204267902U - The prefabricated direct-buried heat insulation composite plastics tubing of a kind of outdoor central heat supply - Google Patents
The prefabricated direct-buried heat insulation composite plastics tubing of a kind of outdoor central heat supply Download PDFInfo
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- CN204267902U CN204267902U CN201420657281.3U CN201420657281U CN204267902U CN 204267902 U CN204267902 U CN 204267902U CN 201420657281 U CN201420657281 U CN 201420657281U CN 204267902 U CN204267902 U CN 204267902U
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- heat insulation
- heat supply
- prefabricated direct
- composite plastics
- plastics tubing
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Abstract
The utility model relates to the prefabricated direct-buried heat insulation composite plastics tubing of a kind of outdoor central heat supply, and the moderate soak layer that the internal layer that this tubing is made up of heat-resisting PERT II type polyethylene resin, polyurethane heat insulation material are formed and the skin that high-density polyethylene resin is made form.Outdoor central heat supply of the present utility model prefabricated direct-buried heat insulation composite plastics tubing is applied in outdoor central heat supply field, substitutes traditional steel pipe thermal insulation pipe, has efficiency losses few, corrosion-resistant, comprehensive cost is low, long service life, later maintenance becomes the plurality of advantages such as low, is easy to popularize.
Description
Technical field
Basis is practical relates to the prefabricated direct-buried heat insulation composite plastics tubing of a kind of outdoor central heat supply, a kind of in the outdoor central heat supply field of building specifically, for a kind of three-layer composite pipe material of heating power fluid conveying.
Background technique
At present, polyethylene pipe, with advantages such as its corrosion-resistant, light, health, hot-melt adhesive paste had are convenient, is widely used in the technical field such as urban water supply and sewerage, gas transmission, and is also applied in resident living, instead of traditional steel pipe gradually.But in existing outdoor central heat supply field, still main force's pipeline that steel pipe thermal insulation pipe is carried as heating power is adopted, its ubiquitous shortcoming is: thermal source transfer efficiency is low, not corrosion-resistant, installation is wasted time and energy, working life is short, later maintenance cost is high, general working life less than 15 years, had a strong impact on heat supply safety, resident's normal life and civil order stable.
Summary of the invention
The purpose of this utility model is the defect overcoming above-mentioned prior art, provides a kind of and effectively improves the conveying thermal efficiency, corrosion-resistant, simple installation, long service life, rear cost is low, the prefabricated direct-buried heat insulation composite plastics tubing of the outdoor central heat supply that later maintenance cost is low.
The utility model adopts following technological scheme to realize:
The prefabricated direct-buried heat insulation composite plastics tubing of a kind of outdoor central heat supply, the moderate soak layer that the internal layer that it is characterized in that being made up of heat-resisting PERT II type polyethylene resin, polyurethane heat insulation material are formed and the skin that high-density polyethylene resin is made form.
The prefabricated direct-buried heat insulation composite plastics tubing of the outdoor central heat supply of the utility model adopts three-layer composite structure, when heating power is carried, is born pressure and the heating power of conveying heating power generation by pipe in internal layer PERT II type polyethylene; Carry out adiabatic heat-insulation by the thermal insulation layer in mesosphere, prevent outside heat losses to interior pipe, also effectively prevent the outer cold current of pipe and invade internal layer, thus serve insulation, antifreeze function; Outer employing high-density polyethylene material, while guarantee composite pipe critical external compressive resistance, anti-scratch ability, also can play certain insulation, antifreeze effect.Adopt overall plastic composite structure due to it simultaneously, therefore there is not etching problem, tubing weight reduces, and directly adopts heat-melting butt-joint or electric melting sleeve to connect, and makes to connect safety in utilization and is improved largely.
Outdoor central heat supply of the present utility model prefabricated direct-buried heat insulation composite plastics tubing Long-Time Service temperature is 80 DEG C, and the upper limit temperature of heat tolerance can reach 95 DEG C, and use pressure to reach 1.0MPa, Long Service Life reaches more than 50 years.
Outdoor central heat supply of the present utility model prefabricated direct-buried heat insulation composite plastics tubing is applied in outdoor central heat supply field, substitutes traditional steel pipe thermal insulation pipe, has efficiency losses few, corrosion-resistant, comprehensive cost is low, long service life, later maintenance becomes the plurality of advantages such as low, is easy to popularize.
Accompanying drawing explanation
Fig. 1 is the structural representation of the prefabricated direct-buried heat insulation composite plastics tubing of outdoor central heat supply of the present utility model.
Embodiment
The prefabricated direct-buried heat insulation composite plastics tubing of outdoor central heat supply of the present utility model, the moderate soak layer 2 that the internal layer 1 be made up of heat-resisting PERT II type polyethylene resin, polyurethane heat insulation material are formed and the skin 3 that high-density polyethylene resin is made form.
Described heat-resisting PERT II type polyethylene resin is a kind of PE100 level high-performance polyethylene mixed ingredients based on hervene copolymer, has the features such as heat-resisting, withstand voltage.
Described polyurethane heat insulation material is a kind of hard polyurethane material being carried out closed-cell foam by isocyanates, polyethers, stabilizer and initator etc. according to a certain ratio.
Described high-density polyethylene resin is PE100 level or PE80 polyethylene grades resin, provides higher critical external compressive resistance ability.
Claims (1)
1. the prefabricated direct-buried heat insulation composite plastics tubing of outdoor central heat supply, the moderate soak layer (2) that the internal layer (1) that it is characterized in that being made up of heat-resisting PERT II type polyethylene resin, polyurethane heat insulation material are formed and the skin (3) that high-density polyethylene resin is made form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420657281.3U CN204267902U (en) | 2014-11-06 | 2014-11-06 | The prefabricated direct-buried heat insulation composite plastics tubing of a kind of outdoor central heat supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420657281.3U CN204267902U (en) | 2014-11-06 | 2014-11-06 | The prefabricated direct-buried heat insulation composite plastics tubing of a kind of outdoor central heat supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267902U true CN204267902U (en) | 2015-04-15 |
Family
ID=52802769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420657281.3U Active CN204267902U (en) | 2014-11-06 | 2014-11-06 | The prefabricated direct-buried heat insulation composite plastics tubing of a kind of outdoor central heat supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267902U (en) |
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2014
- 2014-11-06 CN CN201420657281.3U patent/CN204267902U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |