CN210318874U - High-density polyethylene outer protective pipe polyurethane foam plastic direct-buried heat-insulation steel-plastic composite pipe - Google Patents
High-density polyethylene outer protective pipe polyurethane foam plastic direct-buried heat-insulation steel-plastic composite pipe Download PDFInfo
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- CN210318874U CN210318874U CN201921008696.7U CN201921008696U CN210318874U CN 210318874 U CN210318874 U CN 210318874U CN 201921008696 U CN201921008696 U CN 201921008696U CN 210318874 U CN210318874 U CN 210318874U
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Abstract
The utility model discloses a compound pipe is moulded to high density polyethylene outer casing polyurethane foam direct-burried heat preservation steel, mould compound pipe main part including the steel, the outside of compound pipe main part is moulded to the steel is equipped with polyurethane foam heat preservation, the outside of polyurethane foam heat preservation is equipped with high density polyethylene outer casing body, compound pipe main part, polyurethane foam heat preservation and high density polyethylene outer casing are moulded to the steel and are mixed the foaming bonding through black white material each other and get up. The novel material is used, the steel-plastic composite pipe is used for replacing the traditional working steel pipe, the heat insulation performance is improved, and the heat loss of a conveying medium is reduced; the wear resistance is improved; the specific friction resistance is reduced; the mechanical property is improved, and the service life of the product is prolonged; by adjusting the proportion and technical parameters of polyether polyol and isocyanate, the plastic composite pipe body, the polyurethane foam heat-insulating layer and the high-density polyethylene outer protective pipe body realize a three-position integrated structure, a novel heat-insulating process is formed, and the product quality is improved.
Description
Technical Field
The utility model relates to a direct-burried heat preservation steel-plastic composite pipe especially relates to high density polyethylene outer pillar polyurethane foam direct-burried heat preservation steel-plastic composite pipe.
Background
With the continuous improvement of the urbanization level of China, the construction engineering quantity of the urban centralized heat supply pipe network is continuously increased. Most of working pipes in the existing heat supply pipe network still adopt traditional steel pipes, and the defects of easy corrosion, large frictional resistance, high energy consumption and the like exist in the using process; the steel-plastic composite pipe has been applied in the industries of water supply, drainage, chemical industry and the like for twenty years, and the practical application proves that the inner wall of the steel-plastic composite pipe is smooth, is not rusted, does not pollute and the like. If the steel-plastic composite pipe is introduced into a secondary pipe network in the heating industry, the maintenance and operation cost of the pipe network can be greatly reduced, the energy consumption and the corrosion damage of the working pipe can be reduced, and the safe and stable operation of a heating system is ensured.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides a compound pipe is moulded to high density polyethylene outer pillar polyurethane foam direct-burried heat preservation steel can solve and still adopt traditional steel pipe by most working pipe in the current heat supply pipe network, has easy corrosion, frictional resistance is big, the problem that the energy consumption is high in the use.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model provides a high density polyethylene outer casing polyurethane foam direct-burried heat preservation steel plastic composite pipe, mould the composite pipe main part including the steel, the outside of steel plastic composite pipe main part is equipped with polyurethane foam heat preservation, the outside of polyurethane foam heat preservation is equipped with high density polyethylene outer casing body, mix the foaming through black white material between steel plastic composite pipe main part and the polyurethane foam heat preservation and bind, mix the foaming through black white material between polyurethane foam heat preservation and the high density polyethylene outer casing body and bind.
As an optimal technical scheme of the utility model, mix the foaming through black white material and bind between compound pipe main part, polyurethane foam heat preservation, the outer pillar body of high density polyethylene and realize trinity's heat preservation stable structure.
As a preferred technical scheme of the utility model, the black and white material is polyether polyol and isocyanate.
As an optimized technical scheme of the utility model, the steel-plastic composite pipe main part is by metal thin-walled tube inside lining engineering plastic tubing, inside lining engineering plastic tubing's material is ultra high molecular weight polyethylene.
As an optimized technical proposal of the utility model, the main body of the steel-plastic composite pipe is a seamless steel-plastic composite pipe.
As an optimized technical scheme of the utility model, polyurethane foam heat preservation is rigid polyurethane foam heat preservation.
Compared with the prior art, the utility model discloses the beneficial effect that can reach is:
the utility model uses the novel material, and uses the steel-plastic composite pipe to replace the traditional working steel pipe, thereby improving the heat preservation performance and reducing the heat loss of the conveying medium; the wear resistance is improved; the specific friction resistance is reduced, the equivalent roughness of the inner wall is about 3/10 of the steel pipe, and the flow resistance is about 1 percent of the steel pipe; various performance indexes such as mechanical performance, corrosion resistance and the like are improved, and the service life of the product is prolonged; by adjusting the proportion and technical parameters of polyether polyol and isocyanate, the plastic composite pipe body, the polyurethane foam heat-insulating layer and the high-density polyethylene outer protective pipe realize a three-position integrated structure, a novel heat-insulating process is formed, and the product quality is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a cross-sectional view of the present invention;
wherein: 1. a steel-plastic composite pipe body; 2. a polyurethane foam insulation layer; 3. high density polyethylene outer pillar body.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Referring to fig. 1-2, the utility model provides a compound pipe is moulded to density polyethylene outer pillar polyurethane foam direct-burried heat preservation steel, including compound pipe main part 1 is moulded to steel, and compound pipe main part 1's the outside is equipped with polyurethane foam heat preservation 2, and the outside of polyurethane foam heat preservation 2 is equipped with high density polyethylene outer pillar body 3, mixes the foaming through black and white material between compound pipe main part 1 is moulded to steel and the polyurethane foam heat preservation 2 bonds, mixes the foaming through black and white material between polyurethane foam heat preservation 2 and the high density polyethylene outer pillar body 3 and bonds.
The steel-plastic composite pipe main body 1, the polyurethane foam heat-insulating layer 2 and the high-density polyethylene outer protective pipe body 3 are bonded through black and white material mixing foaming to realize a three-in-one heat-insulating layer stable structure. The black and white materials are polyether polyol and isocyanate. The steel-plastic composite pipe main body 1 is made of a metal thin-wall pipe lining engineering plastic pipe made of ultra-high molecular weight polyethylene. The steel-plastic composite pipe body 1 is a seamless steel-plastic composite pipe. The polyurethane foam heat-insulating layer 2 is a hard polyurethane foam heat-insulating layer.
The specific working principle is as follows: the utility model discloses use steel that novel material made to mould compound pipe main part 1, scribble in the 1 outside of steel mould compound pipe main part and be 1 with the mass ratio: 1.55, mixing and foaming the polyether polyol and the isocyanate to bond the steel-plastic composite pipe body 1 and the polyurethane foam heat-insulating layer together, extruding the polyurethane foam heat-insulating layer 2 and the steel-plastic composite pipe body 1 to form an integrated structure through an extrusion forming process, and coating the outer side of the polyurethane foam heat-insulating layer 2 with a mass ratio of 1: 1.55, mixing and foaming the polyether polyol and the isocyanate to bond the polyurethane foam heat-insulating layer 2 and the high-density polyethylene outer protective pipe body 3 together, and then extruding to realize a three-dimensional integrated structure of the plastic composite pipe body 1, the polyurethane foam heat-insulating layer 2 and the high-density polyethylene outer protective pipe body 3, so that the performance of the directly-buried heat-insulating steel-plastic composite pipe is improved.
The utility model discloses the beneficial effect that can reach is: the utility model uses the novel material, and uses the steel-plastic composite pipe to replace the traditional working steel pipe, thereby improving the heat preservation performance and reducing the heat loss of the conveying medium; the wear resistance is improved; the specific friction resistance is reduced, the equivalent roughness of the inner wall is about 3/10 of the steel pipe, and the flow resistance is about 1 percent of the steel pipe; various performance indexes such as mechanical performance, corrosion resistance and the like are improved, and the service life of the product is prolonged; by adjusting the proportion and technical parameters of polyether polyol and isocyanate, the plastic composite pipe body, the polyurethane foam heat-insulating layer and the high-density polyethylene outer protective pipe body realize a three-position integrated structure, a novel heat-insulating process is formed, and the product quality is improved.
The embodiments of the present invention are not limited to the above embodiments, and according to the contents of the above embodiments of the present invention, the above preferred embodiments can also make modifications, replacements or combinations of other forms by using conventional technical knowledge and conventional means in the field without departing from the basic technical idea of the present invention, and the obtained other embodiments all fall within the scope of the present invention.
Claims (6)
1. The high-density polyethylene outer protection pipe polyurethane foam direct-buried heat-insulation steel-plastic composite pipe comprises a steel-plastic composite pipe main body (1) and is characterized in that a polyurethane foam heat-insulation layer (2) is arranged on the outer side of the steel-plastic composite pipe main body (1), a high-density polyethylene outer protection pipe body (3) is arranged on the outer side of the polyurethane foam heat-insulation layer (2), the steel-plastic composite pipe main body (1) and the polyurethane foam heat-insulation layer (2) are mixed, foamed and bonded through black and white materials, and the polyurethane foam heat-insulation layer (2) and the high-density polyethylene outer protection pipe body (3) are mixed, foamed and bonded through black and white materials.
2. The high-density polyethylene outer protective pipe polyurethane foam direct-buried heat-insulation steel-plastic composite pipe according to claim 1, wherein the steel-plastic composite pipe main body (1), the polyurethane foam heat-insulation layer (2) and the high-density polyethylene outer protective pipe body (3) are bonded together through black and white material mixing foaming to realize a three-in-one heat-insulation layer stable structure.
3. The high-density polyethylene outer protective pipe polyurethane foam direct-buried heat-insulation steel-plastic composite pipe as claimed in claim 1, wherein the black and white material is polyether polyol and isocyanate.
4. The high-density polyethylene outer protective pipe polyurethane foam direct-buried heat-preservation steel-plastic composite pipe as claimed in claim 1, wherein the steel-plastic composite pipe body (1) is made of a metal thin-wall pipe lined with an engineering plastic pipe, and the lining engineering plastic pipe is made of ultra-high molecular weight polyethylene.
5. The high-density polyethylene outer protective pipe polyurethane foam direct-buried heat-insulation steel-plastic composite pipe as claimed in claim 4, wherein the steel-plastic composite pipe body (1) is a seamless steel-plastic composite pipe.
6. The high-density polyethylene outer protective pipe polyurethane foam direct-buried heat-preservation steel-plastic composite pipe as claimed in claim 4, wherein the polyurethane foam heat-preservation layer (2) is a rigid polyurethane foam heat-preservation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921008696.7U CN210318874U (en) | 2019-07-01 | 2019-07-01 | High-density polyethylene outer protective pipe polyurethane foam plastic direct-buried heat-insulation steel-plastic composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921008696.7U CN210318874U (en) | 2019-07-01 | 2019-07-01 | High-density polyethylene outer protective pipe polyurethane foam plastic direct-buried heat-insulation steel-plastic composite pipe |
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| Publication Number | Publication Date |
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| CN210318874U true CN210318874U (en) | 2020-04-14 |
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| CN201921008696.7U Active CN210318874U (en) | 2019-07-01 | 2019-07-01 | High-density polyethylene outer protective pipe polyurethane foam plastic direct-buried heat-insulation steel-plastic composite pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719670A (en) * | 2021-08-31 | 2021-11-30 | 黑龙江贞财管道有限公司 | ESEPI prefabricated heat-preservation direct-buried heat-resistant high-density polyethylene low-temperature heat supply composite pipe |
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2019
- 2019-07-01 CN CN201921008696.7U patent/CN210318874U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719670A (en) * | 2021-08-31 | 2021-11-30 | 黑龙江贞财管道有限公司 | ESEPI prefabricated heat-preservation direct-buried heat-resistant high-density polyethylene low-temperature heat supply composite pipe |
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