CN203322521U - Three-layer high-density heat-resisting polyethylene heat insulation pipe - Google Patents
Three-layer high-density heat-resisting polyethylene heat insulation pipe Download PDFInfo
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- CN203322521U CN203322521U CN2013201672416U CN201320167241U CN203322521U CN 203322521 U CN203322521 U CN 203322521U CN 2013201672416 U CN2013201672416 U CN 2013201672416U CN 201320167241 U CN201320167241 U CN 201320167241U CN 203322521 U CN203322521 U CN 203322521U
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Abstract
A three-layer high-density heat-resisting polyethylene heat insulation pipe which comprises an inner layer, a middle layer and an external layer, wherein the inner layer is a high-density heat-resisting polyethylene material pipe layer, the middle layer is a polyurethane foam plastic pipe layer, and the outer layer is a multifunctional high-density polyethylene material pipe layer; a polyurethane foaming plastic is poured in the middle layer and applied between the inner layer and the outer layer, and the three layers form an integrated structure; and the high-density heat-resisting polyethylene material pipe layer is a pure high-density PE-RT (polyethylene of raised temperature resistance) II material pipe layer, the polyurethane foam plastic pipe layer is a PU (polyurethane) foam material layer, and the multifunctional high-density polyethylene material pipe layer is a multifunctional HEPE (high-density polyethylene) material pipe layer. The three-layer high-density heat-resisting polyethylene heat insulation pipe has the advantages as follows: the problems that in the prior art, the pipe can be corroded easily, leakage and damage are caused, the installation is strenuous, corroded and rusted sediments cause jam, a metering device and heat supply equipment cannot operate normally, and the service life is short are solved.
Description
Technical field
The utility model relates to a kind of tubing, relates in particular to a kind of three floor height density heat-proof polythene heat-insulating pipes.
Background technique
Along with industrial expansion, architecture ensemble is more and more, and standard of living also progressively improves, and the community central heating has been not only now in the north, and many cities are also mentioned improving in National People's Congress's motion and lived water and comment in south, solves the heating in winter and asks and carry.Because the narrow limitation of tubing itself causes meeting the heat supply needs, as at building heating, high-rise supplying hot water etc.The pure pipe of moulding can not meet requirement on high temperature resistant compressive strength and impact property, and the pipe technology of many producers foreign, developed a lot of thermal insulation pipes, as: steel pipe thermal insulation pipe, PP-R thermal insulation pipe etc.Early stage steel pipe insulation pipe system, in its production technology: steel pipe inner wall polishing difficulty, antirust difficulty is large.In construction, the pipeline Placement is only that the following tubule of dn63 is connected the employing screwed connection with pipe fitting, large effective welding, and the steel insulating pipe is perishable, produces and leaks and damage; During installation, require great effort, the rust corrosion sediments results in blockage, and causes measuring apparatus, and heating equipment can't normally move, and working life is short.Developed in recent years the PP-R composite insulating pipe, preferably resolved the corrosion-prone problem of steel insulating pipe, but also exist bearing capacity lower, the defect that the tube wall plastic layer is thicker; Affect the development of community central heating.
Summary of the invention
The purpose of this utility model is to provide a kind of three floor height density heat-proof polythene heat-insulating pipes of anti-corrosion.
For achieving the above object, the technological scheme that the utility model adopts is:
A kind of three floor height density heat-proof polythene heat-insulating pipes, comprising: interior, in, outer three layers, its characteristics are: described internal layer is high density heat resistant polyethylene material pipe layer, and mesosphere is urethane foam pipe layer, and skin is multi-functional high-density polyethylene material pipe layer.
According to described three floor height density heat-proof polythene heat-insulating pipes, its characteristics are: described mesosphere cast polyurethane foamed plastics spreads between internal layer and skin, the three layers of formula structure that becomes one.
According to described three floor height density heat-proof polythene heat-insulating pipes, its characteristics are: described high density heat resistant polyethylene material pipe layer is pure high density heat-proof polythene (PE-RT II) tubes of material layer, urethane foam pipe layer is polyurethane (PU) sponge layer, and multi-functional high-density polyethylene material pipe layer is multi-functional high density polyethylene tubes of material layer.
The utility model has the advantages that: the utility model has solved perishable that the heat-insulating pipe of prior art exists, and produces and leaks and damage; During installation, require great effort, the rust corrosion sediments results in blockage, and causes measuring apparatus, and heating equipment can't normally move, the problem that working life is short.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The worm's eye view that Fig. 2 is Fig. 1.
In accompanying drawing
1, high density heat resistant polyethylene material pipe layer; 2, urethane foam pipe layer; 3, multi-functional high-density polyethylene material pipe layer.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described:
A kind of three floor height density heat-proof polythene heat-insulating pipes, as shown in Figure 1 and Figure 2, comprising: interior, in, outer three layers, described internal layer is high density heat resistant polyethylene material pipe layer 1, mesosphere is urethane foam pipe layer 2, and skin is multi-functional high-density polyethylene material pipe layer 3.
Described mesosphere cast polyurethane foamed plastics spreads between internal layer and skin in the present embodiment, the three layers of formula structure that becomes one.
Described high density heat resistant polyethylene material pipe layer (1) is pure high density heat-proof polythene (PE-RT II) tubes of material layer in the present embodiment, urethane foam pipe layer (2) is polyurethane (PU) sponge layer, and multi-functional high-density polyethylene material pipe layer (3) is multi-functional high density polyethylene tubes of material layer.
The utility model beneficial effect: the utility model is by internal layer (high density heat-proof polythene (PE-RT II) tube material) and outer (high density polyethylene pipe material adds appropriate black masterbatch and ultraviolet protecting agent, antioxidant material), by casting forming method, polyurethane (PU) foamed plastics is spread between internal layer and skin, make internal layer high density heat-proof polythene (PE-RT II) tubing manage between three layers and closely bond the formula structure that becomes one with outer hdpe layer (PE-HD); The outer high density polyethylene pipe of tubing is done protective layer; polyurethane (PU) foamed plastics in the middle of tubing plays insulation effect; internal layer high density heat-proof polythene (PE-RT II) tubing of tubing contacts with the fluid-phase that pipeline is carried; health and the physical property of tubing are not affected; more effectively reduce heat-energy losses; pipeline is corrosion-free, heat resisting and pressure resisting, has just protected working life.
1. life hot and cold water transportation art:
(1) comparison of hydrostatic strength: the typical application of temperature of life cold and hot water supply system is 70 ℃ in China, the comparison of the design stress of different materials at this temperature.Design stress 3.7 MPa of PE-RT II type pipeline, have greater advantages than PP-R design stress 2.2MPa and PE-RT I type piping design stress 2.7MPa.The pipeline of same specification, bearing capacity is higher.
(2) use PE-RT II shaped material can save more materials: the PE-RT II type pipeline of S3.2 specification is compared with the PP-R pipeline of S2 specification, can save 22% ~ 24% consumption; Compare with the PE-RT I of S2.5, can save 13%～14% consumption.
2, high-temperature behavior:
(1) PE-RT II shaped material is compared with PE-X (crosslinked PE): PE-RT does not need crosslinking process, and tubing can also recycling.But PE-RT II shaped material hot melt, the joint leakproofness is very reliable, not there will be the phenomenon that causes joint area evaporating, emitting, dripping or leaking of liquid or gas to occur because plastic materials is aging.
(2) plastic tube and steel pipe ratio: steel pipe: derusting grade can reach the Sa2 level in the GB8923-1988 standard, and surface roughness can reach R=12.5 micron in the GB6060.5-88 standard.Thermal conductivity 45W/m.K.Plastic tube; Plastic tube thermal conductivity 0.42W/m.K, the plastic pipe energy consumption is low, is only the 30%-50% of steel pipe and cast iron tube.Plastic tube pipe surface roughness is only 0.009-0.010m, and much smaller than steel pipe and cast iron tube, water delivery energy loss-rate metallic material pipeline greatly reduces.Through the science test, plastic pipe water supply system can save energy 62%-75% than steel pipe, for drainage system, than cast iron tube, can save energy 55%-68%, aspect energy-conservation, larger advantage is arranged.But PE-RT II shaped material hot melt, the joint leakproofness is very reliable, easy for installation, quick.The outer protection tube: adopt high density polyethylene (HDPE) to do protective layer and can reduce 10% of engineering cost.
3, the utility model is applicable to the connection of composite metal-plastic pipe.Minor-caliber PE-socket welded technique of RT II pipe hot melting and PP-R are similar, and large diameter pipeline is similar to technique and the common PE 100 of fusion welding.
Embodiment recited above is described preferred implementation of the present utility model; not design of the present utility model and protection domain are limited; under the prerequisite that does not break away from the utility model design concept; various modification and improvement that in related domain, common engineers and technicians make the technical solution of the utility model, all should fall into protection domain of the present utility model.
Claims (3)
1. a floor height density heat-proof polythene heat-insulating pipe, comprising: interior, in, outer three layers, it is characterized in that: described internal layer is high density heat resistant polyethylene material pipe layer (1), mesosphere is urethane foam pipe layer (2), and skin is multi-functional high-density polyethylene material pipe layer (3).
2. three floor height density heat-proof polythene heat-insulating pipes according to claim 1, it is characterized in that: described mesosphere cast polyurethane foamed plastics spreads between internal layer and skin, the three layers of formula structure that becomes one.
3. three floor height density heat-proof polythene heat-insulating pipes according to claim 1, it is characterized in that: described high density heat resistant polyethylene material pipe layer (1) is pure high density heat-proof polythene PE-RT II tubes of material layer, urethane foam pipe layer (2) is the polyurethane PU sponge layer, and multi-functional high-density polyethylene material pipe layer (3) is multi-functional high density polyethylene tubes of material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201672416U CN203322521U (en) | 2013-04-07 | 2013-04-07 | Three-layer high-density heat-resisting polyethylene heat insulation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201672416U CN203322521U (en) | 2013-04-07 | 2013-04-07 | Three-layer high-density heat-resisting polyethylene heat insulation pipe |
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| Publication Number | Publication Date |
|---|---|
| CN203322521U true CN203322521U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201672416U Expired - Fee Related CN203322521U (en) | 2013-04-07 | 2013-04-07 | Three-layer high-density heat-resisting polyethylene heat insulation pipe |
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| CN (1) | CN203322521U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757357A (en) * | 2016-05-05 | 2016-07-13 | 日丰企业集团有限公司 | Prefabricated directly-buried thermal-insulating plastic pipe taking glass fiber reinforced PERT pipe as working pipe and preparation method thereof |
| CN105953030A (en) * | 2016-07-01 | 2016-09-21 | 香格里拉市智友新能源有限公司 | PPR-PVC compound insulation pipe |
-
2013
- 2013-04-07 CN CN2013201672416U patent/CN203322521U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757357A (en) * | 2016-05-05 | 2016-07-13 | 日丰企业集团有限公司 | Prefabricated directly-buried thermal-insulating plastic pipe taking glass fiber reinforced PERT pipe as working pipe and preparation method thereof |
| CN105953030A (en) * | 2016-07-01 | 2016-09-21 | 香格里拉市智友新能源有限公司 | PPR-PVC compound insulation pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20180407 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |