CN103982712A - Polyurethane rigid foam PP-R (Polypropylene) thermal insulation anticorrosion pipeline - Google Patents
Polyurethane rigid foam PP-R (Polypropylene) thermal insulation anticorrosion pipeline Download PDFInfo
- Publication number
- CN103982712A CN103982712A CN201410229871.0A CN201410229871A CN103982712A CN 103982712 A CN103982712 A CN 103982712A CN 201410229871 A CN201410229871 A CN 201410229871A CN 103982712 A CN103982712 A CN 103982712A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- layer
- thermal insulation
- rigid foam
- polyurethane rigid
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention relates to a liquid conveying pipeline, particularly relates to a polyurethane rigid foam PP-R (Polypropylene) thermal insulation anticorrosion pipeline. The polyurethane rigid foam PP-R thermal insulation anticorrosion pipeline comprises a pipeline outer layer, a pipeline inner layer and a middle layer; the pipeline outer layer warps the pipeline inner layer; the pipeline inner layer covers the middle layer; the pipeline outer layer is a high density polyethylene outer protective layer; the pipeline inner layer is a PP-R pipe; the middle layer is polyurethane rigid foam. The polyurethane rigid foam PP-R thermal insulation anticorrosion pipeline has the advantages of being good in thermal insulation performance, bearing pressure, being obvious in anticorrosion performance and simple in construction, allowing direct hot melting connection during connection and enabling the service life to achieve 50 years.
Description
technical field:
The present invention relates to a kind of liquid conducting pipes, be specifically related to a kind of hard polyurethane foam PP-R insulation antiseptic pipeline.
background technique:
At present, liquid conducting pipes is often polyethylene pipe or steel pipe, be embedded in underground rear thermal insulation property poor, and the resistance to high temperature of polyvinyl piping materials is poor should not be for heating network, in prior art, insulation antiseptic pipeline is comprised of steel pipe medium transport pipe mostly, a kind of urethane foam insulation pipe as disclosed in utility model patent CN 203404562U, comprise steel pipe, anticorrosive coat, urethane foam thermal insulation layer, low temperature resistant cracking resistance high-density polyethylene external protective pipe, reserved welding section, the excircle parcel anticorrosive coat of steel pipe, the excircle parcel urethane foam thermal insulation layer of anticorrosive coat, the excircle of urethane foam thermal insulation layer wraps up low temperature resistant cracking resistance high-density polyethylene external protective pipe, there is respectively reserved welding section at the two ends of steel pipe.The easy corrosion of steel pipe medium transport pipe that it is inner, antiseptic property is poor, and bad mechanical strength, and the weld bond between pipeline welds operates more complicatedly, a little less than join strength, causes working life short, and construction and installation are time-consuming, effort, and cost is high.
summary of the invention:
In order to overcome the deficiencies in the prior art, the invention provides a kind of hard polyurethane foam PP-R insulation antiseptic pipeline, can when reaching heat insulation effect, play anticorrosion, pressure-bearing effect, and connect quick, easy.
For solving the problems of the technologies described above; the present invention takes following technological scheme: a kind of hard polyurethane foam PP-R insulation antiseptic pipeline; comprise pipeline outer-layer, pipeline lining, mesosphere; pipeline outer-layer parcel pipeline lining; pipeline lining parcel mesosphere; pipeline outer-layer is high density polyethylene (HDPE) external protection, and pipeline lining is PP-R tubing, and mesosphere is hard polyurethane foam.
Described pipeline outer-layer is high density polyethylene (HDPE) external protection, and this layer is protecting jacket, blocks air, moisture and plays the moulding effect in mesosphere; Described pipeline lining is PP-R tubing, claim again three type polypropylene tube, adopt atactic copolymerized polypropene through being extruded as tubing, injection moulding becomes pipe fitting, has the features such as lightweight, corrosion-resistant, non-scaling, long service life, there are good shock resistance and long-term creep behaviour, also have good welding performance, tubing, pipe fitting can adopt hot melt to be connected with electric smelting, easy for installation, the intensity of its connection part is greater than the intensity of tubing itself, and it is mainly conveying liquid substance; Described mesosphere is hard polyurethane foam, mainly plays insulation effect, therefore, has just reached and has been incubated and corrosion-resistant object.
Beneficial effect of the present invention: excellent thermal insulation performance not only, can pressure-bearing, and also antiseptic property is obvious, easy construction, and during connection, directly hot melt connects, and can reach 50 years working life.
accompanying drawing explanation:
?fig. 1 is structural representation of the present invention.
In figure: 1, pipeline outer-layer, 2, pipeline lining, 3, mesosphere.
embodiment:
Below in conjunction with accompanying drawing, technological scheme of the present invention is further described.
As shown in Figure 1; this embodiment is by the following technical solutions: a kind of hard polyurethane foam PP-R insulation antiseptic pipeline; comprise pipeline outer-layer 1, pipeline lining 2, mesosphere 3; pipeline outer-layer 1 parcel pipeline lining 2; pipeline lining 2 parcel mesospheres 3; pipeline outer-layer 1 is high density polyethylene (HDPE) external protection, and pipeline lining 2 is PP-R tubing, and mesosphere 3 is hard polyurethane foam.Described pipeline outer-layer 1 is high density polyethylene (HDPE) external protection, and this layer is protecting jacket, blocks air, moisture and plays the moulding effect in mesosphere; Described pipeline lining 2 is PP-R tubing, and it is mainly conveying liquid substance; Described mesosphere 3 is hard polyurethane foam, mainly plays insulation effect.This hard polyurethane foam PP-R insulation antiseptic pipeline is compared with hard polyurethane foam insulation antiseptic steel pipe, excellent thermal insulation performance not only, can pressure-bearing, and antiseptic property is obvious, easy construction, during connection, directly hot melt connects, and can reach 50 years working life, cost is low, is easy to large-scale promotion application.
Claims (1)
1. a hard polyurethane foam PP-R insulation antiseptic pipeline; comprise pipeline outer-layer, pipeline lining, mesosphere; pipeline outer-layer parcel pipeline lining; pipeline lining parcel mesosphere; it is characterized in that: pipeline outer-layer is high density polyethylene (HDPE) external protection; pipeline lining is PP-R tubing, and mesosphere is hard polyurethane foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410229871.0A CN103982712A (en) | 2014-05-28 | 2014-05-28 | Polyurethane rigid foam PP-R (Polypropylene) thermal insulation anticorrosion pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410229871.0A CN103982712A (en) | 2014-05-28 | 2014-05-28 | Polyurethane rigid foam PP-R (Polypropylene) thermal insulation anticorrosion pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103982712A true CN103982712A (en) | 2014-08-13 |
Family
ID=51274798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410229871.0A Pending CN103982712A (en) | 2014-05-28 | 2014-05-28 | Polyurethane rigid foam PP-R (Polypropylene) thermal insulation anticorrosion pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103982712A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107553985A (en) * | 2017-08-22 | 2018-01-09 | 江苏由迎管阀件有限公司 | A kind of anti-aging PP pipes |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO167943B (en) * | 1985-10-17 | 1991-09-16 | Hutchinson | DEVICE FOR HEAT-INSULATED PIPE SECTION FOR UNDERGROUND PIPELINE, AND PROCEDURE FOR THE PREPARATION OF SUCH PIPELINE |
| CN201262285Y (en) * | 2008-08-12 | 2009-06-24 | 林云青 | High-foaming plastic composited thermal insulation pipe |
| CN201521723U (en) * | 2009-09-28 | 2010-07-07 | 大庆油田有限责任公司 | Low-temperature high-strength anti-corrosion heat insulation composite pipeline |
| CN202402812U (en) * | 2011-11-29 | 2012-08-29 | 浙江开达管业有限责任公司 | Heat-preserving pipe |
| CN203404562U (en) * | 2013-08-09 | 2014-01-22 | 中国石油天然气集团公司 | Polyurethane foaming plastic thermal insulation pipeline |
| CN203868533U (en) * | 2014-05-28 | 2014-10-08 | 宁夏华泰塑料管业有限公司 | Polyurethane rigid foam PP-R heat preservation anticorrosion pipeline |
-
2014
- 2014-05-28 CN CN201410229871.0A patent/CN103982712A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO167943B (en) * | 1985-10-17 | 1991-09-16 | Hutchinson | DEVICE FOR HEAT-INSULATED PIPE SECTION FOR UNDERGROUND PIPELINE, AND PROCEDURE FOR THE PREPARATION OF SUCH PIPELINE |
| CN201262285Y (en) * | 2008-08-12 | 2009-06-24 | 林云青 | High-foaming plastic composited thermal insulation pipe |
| CN201521723U (en) * | 2009-09-28 | 2010-07-07 | 大庆油田有限责任公司 | Low-temperature high-strength anti-corrosion heat insulation composite pipeline |
| CN202402812U (en) * | 2011-11-29 | 2012-08-29 | 浙江开达管业有限责任公司 | Heat-preserving pipe |
| CN203404562U (en) * | 2013-08-09 | 2014-01-22 | 中国石油天然气集团公司 | Polyurethane foaming plastic thermal insulation pipeline |
| CN203868533U (en) * | 2014-05-28 | 2014-10-08 | 宁夏华泰塑料管业有限公司 | Polyurethane rigid foam PP-R heat preservation anticorrosion pipeline |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107553985A (en) * | 2017-08-22 | 2018-01-09 | 江苏由迎管阀件有限公司 | A kind of anti-aging PP pipes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140813 |
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| RJ01 | Rejection of invention patent application after publication |