CN201475514U - Three-layer compound pipe - Google Patents
Three-layer compound pipe Download PDFInfo
- Publication number
- CN201475514U CN201475514U CN2009201515103U CN200920151510U CN201475514U CN 201475514 U CN201475514 U CN 201475514U CN 2009201515103 U CN2009201515103 U CN 2009201515103U CN 200920151510 U CN200920151510 U CN 200920151510U CN 201475514 U CN201475514 U CN 201475514U
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- CN
- China
- Prior art keywords
- pipe
- layer
- heat
- non cross
- pipe wall
- 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 - Fee Related
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Abstract
The utility model relates to a three-layer compound pipe comprising a pipe wall outer layer and a pipe wall inner layer which are made from non cross-linked heat-resistant polythene, wherein as an intermediate layer of a composite material of glass fiber, siliceous limestone fiber and non cross-linked heat-resistant polythene is arranged between the pipe wall outer layer and the pipe wall inner layer made from the non cross-linked heat-resistant polythene. The three-layer compound pipe has the benefits of improving intensity and heat resistance and lowering the expansion coefficient to be one third of that of the non cross-linked heat-resistant polythene; the low temperature resistance of the three-layer compound pipe is improved qualitatively compared with that of PP-R pipes, and the pipe can not be damaged due to brittleness even at the lower temperature of -20 DEG C, thus being applicable to hot and cold water pipeline systems in building field and other industrial pipeline systems.
Description
Technical field
The utility model relates to a kind of compound plastic pipe, relates in particular to a kind of three-layer composite pipe.
Background technique
From 2002, a kind of non-crosslinked heat resistant polyethylene material of being researched and developed by Dow Chemical the earliest emerged rapidly, and particularly in the low-temperature floor radiant heating field, its consumption is doubled and redoubled.This material is compared with traditional polyolefine material has high temperature resistant, anti-low temperature brittleness, compressive strength advantages of higher, but this material can't satisfy the required mechanical strength of building because of its rigidity difference, can't use at high temperature more than 70 ℃ for a long time, limit its application in fields such as Building Heat water pipes.The extensively popularization and application of domestic PP-R pipeline, because the PP-R pipe exists low temperature brittleness big, the shortcoming that linear expansion coeffcient is high, the tubing fracture phenomena can appear in construction in the winter time.
The model utility content
The purpose of this utility model provides a kind of three-layer composite pipe, and anti-low temperature brittleness, compressive strength height, mechanical strength are good, heat resistance improves, linear expansion coeffcient is low.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of three-layer composite pipe, outer and the tube wall internal layer of tube wall that comprises the non-crosslinked heat-proof polythene is provided with the composite material mesosphere of glass fibre, wollastonite fiber and non-crosslinked heat-proof polythene between the tube wall skin of described non-crosslinked heat-proof polythene and the tube wall internal layer.
The beneficial effects of the utility model are: improved intensity and resistance to heat, expansion coefficient can drop to the non-crosslinked heat-proof polythene expansion coefficient 1/3; Resistance to low temperature of the present utility model is compared the raising that matter is arranged with the PP-R pipe, even under-20 ℃ low temperature, tubing can not destroy because of fragility yet, is applicable to building field hot and cold water pipeline system and other industrial piping system.
Description of drawings
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the cross-sectional structure schematic representation of the described a kind of three-layer composite pipe of the utility model embodiment.
Among the figure:
1, tube wall skin; 2, tube wall internal layer; 3, mesosphere; 4, glass fibre; 5, wollastonite fiber; 6, non-crosslinked heat-proof polythene.
Embodiment
As shown in Figure 1, the described a kind of three-layer composite pipe of the utility model embodiment, the tube wall outer 1 and the tube wall internal layer 2 that comprise the non-crosslinked heat-proof polythene are provided with the composite material mesosphere 3 of glass fibre 4, wollastonite fiber 5 and non-crosslinked heat-proof polythene 6 between tube wall of described non-crosslinked heat-proof polythene outer 1 and the tube wall internal layer 2.
Claims (1)
1. a three-layer composite pipe comprises the outer and tube wall internal layer of tube wall, it is characterized in that: be provided with the mesosphere between described tube wall skin and the tube wall internal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201515103U CN201475514U (en) | 2009-04-28 | 2009-04-28 | Three-layer compound pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201515103U CN201475514U (en) | 2009-04-28 | 2009-04-28 | Three-layer compound pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475514U true CN201475514U (en) | 2010-05-19 |
Family
ID=42411764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201515103U Expired - Fee Related CN201475514U (en) | 2009-04-28 | 2009-04-28 | Three-layer compound pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475514U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508876A (en) * | 2014-09-22 | 2016-04-20 | 中国石油天然气股份有限公司 | Manifold device |
-
2009
- 2009-04-28 CN CN2009201515103U patent/CN201475514U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508876A (en) * | 2014-09-22 | 2016-04-20 | 中国石油天然气股份有限公司 | Manifold device |
| CN105508876B (en) * | 2014-09-22 | 2018-07-13 | 中国石油天然气股份有限公司 | A kind of manifold apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hongyue Plastic Group Co., Ltd. Assignor: Xu Xin Contract record no.: 2011990000795 Denomination of utility model: A three-layer composite pipe Granted publication date: 20100519 License type: Exclusive License Record date: 20110818 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20140428 |