CN203784493U - Flexible foaming insulating plastic composite tube - Google Patents
Flexible foaming insulating plastic composite tube Download PDFInfo
- Publication number
- CN203784493U CN203784493U CN201320871813.9U CN201320871813U CN203784493U CN 203784493 U CN203784493 U CN 203784493U CN 201320871813 U CN201320871813 U CN 201320871813U CN 203784493 U CN203784493 U CN 203784493U
- Authority
- CN
- China
- Prior art keywords
- tube
- plastic composite
- layer
- foaming insulating
- composite tube
- 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.)
- Expired - Lifetime
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 229920003023 plastic Polymers 0.000 title claims abstract description 27
- 239000004033 plastic Substances 0.000 title claims abstract description 27
- 238000005187 foaming Methods 0.000 title claims abstract description 21
- 229920000098 polyolefin Polymers 0.000 claims abstract description 21
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 16
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims description 24
- 239000005435 mesosphere Substances 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 239000000956 alloy Substances 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 240000008100 Brassica rapa Species 0.000 abstract 2
- 229920002457 flexible plastic Polymers 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- -1 polybutylene Polymers 0.000 description 2
- 229920001748 polybutylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 206010000269 abscess Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model belongs to the technical field of plastic composite tubes, and relates to a flexible foaming insulating plastic composite tube. The flexible foaming insulating plastic composite tube is of a three-layer composite structure including a temperature resisting polyolefin working inner layer, a foaming insulating middle layer and an HDPE single wall corrugated rube protection outer layer from interior to exterior in sequence. The temperature resisting polyolefin working inner layer is wrapped by the foaming insulating middle layer, the foaming insulating middle layer is wrapped by the HDPE single wall corrugated rube protection outer layer, the specific value of the external diameter of the temperature resisting polyolefin working inner layer and the wall thickness ranges from 5 to 11. By means of the technology, the flexible foaming insulating plastic composite tube is obtained, a rigidity alloy tube is replaced by the flexible plastic tube, the proportion is low, the number of connectors and pipe fittings can be reduced, the reliability is high, the corrosion resistance is achieved, the inner wall is smooth, the water flow resistance is low, the heat conductivity coefficient of the plastic tube is lower than that of a steel tube, the insulating performance is good, and the energy loss of hot water in the conveying process can be effectively reduced.
Description
Technical field
The utility model belongs to plastic composite pipe technical field, is specifically related to a kind of flexible foaming thermal-insulation plastic composite tube that district heating, hot spring conveying and industrial high temperature fluid are carried that is mainly used in.
Background technique
Along with economic development, society's affluence, constantly increase for the demand of heating and refrigeration.The southern area of originally not warming oneself winter also will solve heating.Central heating is conducive to energy-saving and emission-reduction, and can utilize waste heat and renewable energy sources, and as cogeneration, regional heating at present, heating are also all adopting steel pipe in this application China.Existing two classes of steel pipe of band insulation, a class common steel tube, does heat insulation (insulation) layer after connecting at the scene again, is conventionally laid in underground pipe canal; Another kind of steel pipe is with regard to well in advance heat insulation (insulation) layer in factory.Owing to there is corrosion phenomenon in steel pipe, the life-span is short, the steel pipe that need every year the thermal conductivity of renewal amount approximately 4% bad, thermal loss is large, is unfavorable for energy-saving and emission-reduction.The rust stain that the steel pipe of corrosion produces in addition, easily instrument and the polluted water in blocking pipeline.
Model utility content
For the above-mentioned problems in the prior art, the purpose of this utility model is to provide a kind of flexible foaming thermal-insulation plastic composite tube that district heating, hot spring conveying and industrial high temperature fluid are carried that is mainly used in.
The foaming thermal-insulation plastic composite tube of described a kind of flexibility; for three-layer composite structure; it is characterized in that described foaming thermal-insulation plastic composite tube is followed successively by heatproof polyolefin work internal layer, foamed heat insulating mesosphere and the protection of HDPE single-wall corrugated pipe from inside to outside outer; described heatproof polyolefin work internal layer and foamed heat insulating mesosphere, foamed heat insulating mesosphere and HDPE single-wall corrugated pipe protection skin are coated setting; described heatproof polyolefin work internal layer external diameter and the ratio of wall thickness are 5-11, and concrete thickness is determined by serviceability temperature and pressure.
The foaming thermal-insulation plastic composite tube of described a kind of flexibility, is characterized in that described foamed heat insulating intermediate layer thickness is 20-30mm.
The foaming thermal-insulation plastic composite tube of described a kind of flexibility, is characterized in that it is 3-5mm that described HDPE single-wall corrugated pipe is protected outer wall thickness.
The foaming thermal-insulation plastic composite tube of above-mentioned a kind of flexibility; for three-layer composite structure; be followed successively by from inside to outside heatproof polyolefin work internal layer, foamed heat insulating mesosphere and the protection of HDPE single-wall corrugated pipe outer; heatproof polyolefin work internal layer and foamed heat insulating mesosphere, foamed heat insulating mesosphere and HDPE single-wall corrugated pipe protection skin are coated setting, and the ratio of heatproof polyolefin work internal layer external diameter and wall thickness is 5-11.The utility model is by adopting above-mentioned technology, the foaming thermal-insulation plastic composite tube obtaining, manage the alloy pipe that substitutes rigidity with the pre-heatpiston of flexibility, proportion is little, can reduce joint and pipe fitting, reliability is high, corrosion-resistant, inner wall smooth, resistance to water-flow is little, plastic tube is low compared with steel pipe thermal conductivity, good heat insulating, can effectively reduce the energy loss of hot water in course of conveying.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the horizontal sectional structure schematic diagram of the utility model Fig. 1.
In figure: the protection of 1-HDPE single-wall corrugated pipe is outer, 2-foamed heat insulating mesosphere, 3-polyolefin work internal layer.
Embodiment
Below in conjunction with Figure of description, the utility model will be further described:
As shown in Figure 1-2, a kind of foaming thermal-insulation plastic composite tube of flexibility, for three-layer composite structure, be followed successively by from inside to outside heatproof polyolefin work internal layer 3, foamed heat insulating mesosphere 2 and HDPE single-wall corrugated pipe protection outer 1, described heatproof polyolefin work internal layer 3 and foamed heat insulating mesosphere 2, foamed heat insulating mesosphere 2 is coated setting with HDPE single-wall corrugated pipe protection outer 1, described heatproof polyolefin work internal layer 3 thickness are determined by serviceability temperature and pressure, the ratio (SDR) of general external diameter and wall thickness is 5-11, SDR is the ratio of its external diameter and wall thickness, foamed heat insulating mesosphere 2 thickness are 20-30mm, HDPE single-wall corrugated pipe protection outer layer thickness is 3-5mm.
As shown in the figure, foaming thermal-insulation plastic composite tube of the present utility model is three layers of all-plastic structure, heatproof polyolefin work internal layer 3 is working pipe, load performance while being responsible for providing composite pipe delivering hot water, it adopts high-temperature-resistance polyolefin material to be prepared from, can be polybutylene (PB) or PEX material, long-term serviceability temperature scope-40-95 DEG C, meets the usage requirement of existing district heating, heat supply; Foamed heat insulating mesosphere 2 is thermal insulation layer, the thermal insulation property of composite pipe excellence is provided, it is prepared by polyethylene chemical crosslinking expandable plastic (XPE), abscess is the thermal-insulating waterproof material of honeycomb (closed pore), semi-rigid foaming body, thermal conductivity is low is 0.030W/mK, it is subject to not lose reducing property after strength impact, its μ value (the dampness factor) is very high, has extremely strong water resistant vapour penetrating power; HDPE single-wall corrugated pipe protection outer 1 be protective tube, and the load that can resist external pressure, ensures that pipeline has good critical external compressive resistance performance, simultaneously again retainer shaft to flexibility, ensure that flexible heatpiston's pipe in advance can bend to smaller bending radius.
When composite pipe on-line continuous of the present utility model is produced, first extrude heatproof polyolefin work internal layer 3, rear coated foamed heat insulating mesosphere 2 and the HDPE single-wall corrugated pipe protection skin 1 extruded online.The thermal insulating plastic composite tube that the utility model obtains, adopt flexible pre-heatpiston to manage the alloy pipe that substitutes rigidity, proportion is little, can reduce joint and pipe fitting, significantly improve reliability, the hot and cold water of can carry-40-95 DEG C, high insulating effect, pipeline deflection become coil pipe, joint few, conveniently lay, this product using scope is wide, can be used for cities and towns central heating, heat supply, cooling pipe network, also can carry for the conveying of chemical industry fluid and oil long distance pipeline.
The pre-heatpiston of flexibility of the present utility model is effective coils supply, can be with needing bending, general in the middle of without joint, do not need again to do at the scene heat insulation, so lay time need excavated volume few, the duration is short, expense is low, rule of thumb can save laying expense 25-40%; Heatproof polyolefin work internal layer 3 heatproof plastic tubes, corrosion-resistant, reach 50 years working life, facts have proved than conventional steel pipeline reliable durable, be especially suitable for supporting the use with building, and its inner wall smooth, resistance to water-flow is little, improves the conveying capacity of pipeline; Because plastic tube is low compared with steel pipe thermal conductivity, inner tube thermal conductivity 0.17-0.41W/mK, has good thermal insulation property, can reduce the energy loss of hot water in course of conveying.In factory, the XPE foam thermal insulation layer of well in advance can make thermal loss be less than 3%, because plastic composite pipe internal and external layer described in the utility model is all polyolefine material, compatibility is good, axially shear strength is 0.15-0.20MPa(23 ± 2 DEG C), require to promote 25%-50% than professional standard, can effectively prevent that vapor permeation from causing insulation failure.
Claims (1)
1. a flexible foaming thermal-insulation plastic composite tube, for three-layer composite structure, it is characterized in that described foaming thermal-insulation plastic composite tube is followed successively by heatproof polyolefin work internal layer (3) from inside to outside, foamed heat insulating mesosphere (2) and HDPE single-wall corrugated pipe protection outer (1), described heatproof polyolefin work internal layer (3) and foamed heat insulating mesosphere (2), foamed heat insulating mesosphere (2) is coated setting with HDPE single-wall corrugated pipe protection outer (1), described heatproof polyolefin work internal layer (3) external diameter and the ratio of wall thickness are 5-11, described foamed heat insulating mesosphere (2) thickness is 20-30mm, described outer (1) wall thickness of HDPE single-wall corrugated pipe protection is 4-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871813.9U CN203784493U (en) | 2013-12-27 | 2013-12-27 | Flexible foaming insulating plastic composite tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871813.9U CN203784493U (en) | 2013-12-27 | 2013-12-27 | Flexible foaming insulating plastic composite tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784493U true CN203784493U (en) | 2014-08-20 |
Family
ID=51320680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320871813.9U Expired - Lifetime CN203784493U (en) | 2013-12-27 | 2013-12-27 | Flexible foaming insulating plastic composite tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641585A (en) * | 2016-12-20 | 2017-05-10 | 浙江伟星新型建材股份有限公司 | PPR insulating composite tube for home decoration and preparation method of composite tube |
-
2013
- 2013-12-27 CN CN201320871813.9U patent/CN203784493U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641585A (en) * | 2016-12-20 | 2017-05-10 | 浙江伟星新型建材股份有限公司 | PPR insulating composite tube for home decoration and preparation method of composite tube |
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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: 20140820 |
|
| CX01 | Expiry of patent term |