CN204403598U - The prefabricated direct-buried polyurethane thermal pipe of inner liner stainless steel - Google Patents
The prefabricated direct-buried polyurethane thermal pipe of inner liner stainless steel Download PDFInfo
- Publication number
- CN204403598U CN204403598U CN201420686941.0U CN201420686941U CN204403598U CN 204403598 U CN204403598 U CN 204403598U CN 201420686941 U CN201420686941 U CN 201420686941U CN 204403598 U CN204403598 U CN 204403598U
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- stainless steel
- inner liner
- pipe
- insulation coating
- liner stainless
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The prefabricated direct-buried polyurethane thermal pipe of a kind of inner liner stainless steel, is characterized in that: be made up of inner liner stainless steel layer, carbon steel layer, alarming line, polyurethane insulation coating, high density polyethylene (HDPE) outer protective layer; Alarming line described in it, during fabrication, is embedded in the polyurethane insulation coating near steel pipe, once seepage occurs in pipeline somewhere, by the conduction of alarm line, just can report in dedicated test instrument and warns and demonstrate the size of accurate location and the leak magnitude leaked.Polyurethane insulation coating adds fire retardant, and high density polyethylene (HDPE) outer protective layer adds fire retardant and Conductive carbon powder, and reinforced pipe pipeline outer wall flame-retardant and anti-static performance, uses under being adapted at particular/special requirement environment.
Description
Technical field
The utility model relates to a kind of prefabricated direct-buried polyurethane thermal pipe, particularly the prefabricated direct-buried polyurethane thermal pipe of inner liner stainless steel.
Background technique
At present, widely used prefabricated direct-buried polyurethane thermal pipe in the insulation prepressing reserving works of the industries such as central heat supply, the conveying supplying cold-peace deep fat and greenhouse, freezer, colliery, oil, chemical industry, bring good effect with its excellent insulation, water-proof performance and easy mounting type to heat insulating work, and reduce cost greatly.But it also has a lot of shortcoming, its most importantly working pipe be all adopt common steel tube, do not do steel pipe corrosion-proof process, greatly affect pipeline working life, the pipeline of corrosion not only affects transfer efficiency, and easy pollution transportation medium.
Stainless Steel Tube is widely used in the industrial transportation pipe lines such as oil, chemical industry, medical treatment, food, light industry, machinery instrument with its good tarnish protection and mechanical property.But it is expensive, engineering cost is higher.
Existing a kind of bimetal complex technique, is a kind of thin wall metal pipeline brute force is fitted to thick-wall seamless or inner wall of welded pipe as anti-corrosion layer, forms a kind of composite bimetal pipe.It preserves the advantage of two kinds of different materials inherences, the complementary deficiency of they inherences.With inner liner stainless steel pipe as working pipe, well solve the problem of thermal insulation pipe corrosion, and pressure-bearing is high, simple installation, safe and sanitary.
Model utility content
Not corrosion-resistant in order to overcome existing prefabricated direct-buried polyurethane insulating tube, the shortcoming of easily getting rusty, now provides a kind of inner liner stainless steel prefabricated direct-buried polyurethane thermal pipe.Solve the shortcoming of prefabricated direct-buried polyurethane thermal pipe easy-to-rust, cost is lower, safe simultaneously defends.
Its technological scheme is as follows:
The prefabricated direct-buried polyurethane thermal pipe of a kind of inner liner stainless steel, is characterized in that: pipeline is made up of inner liner stainless steel layer 1, carbon steel layer 2, alarming line 3, polyurethane insulation coating 4, high density polyethylene (HDPE) outer protective layer 5; Polyurethane insulation coating 4 described in it adds fire retardant, and high density polyethylene (HDPE) outer protective layer 5 adds fire retardant and Conductive carbon powder, and reinforced pipe pipeline outer wall flame-retardant and anti-static performance, uses under being adapted at particular/special requirement environment.
The utility model has following beneficial effect:
The utility model set good characteristic of existing prefabricated direct-buried polyurethane insulating tube and inner liner stainless steel pipe, composite thin wall Stainless Steel Tube in steel pipe, in use inner-walls of duct forms the very thin chromium oxide film of one deck, this film stops metal to continue oxidation, therefore stainless steel has very strong decay resistance, the corrosion of water and air can not only be born, and the corrosion of weak acid and weak base can be born; Inwall stainless steel lining by the acting in conjunction of mechanical interlock and high duty metal tackiness agent, the very strong >15Mpa of combination force; Inner wall smooth, fluid flow resistance is little, non-scaling, and fluid is pollution-free; Safe and sanitary, can carry water purification; External thermal insulation adopts existing ripe polyurethane foam technology and high density polyethylene (HDPE) sheath, excellent thermal insulation performance; Polyurethane insulation coating adds fire retardant, and high density polyethylene (HDPE) outer protective layer adds fire retardant and Conductive carbon powder, and reinforced pipe pipeline outer wall flame-retardant and anti-static performance, uses under being adapted at particular/special requirement environment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Inner liner stainless steel layer-1 carbon steel layer-2 alarming line-3 polyurethane insulation coating-4 high density polyethylene (HDPE) outer protective layer-5 in figure.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the utility model is made up of inner liner stainless steel layer 1, carbon steel layer 2, alarming line 3, polyurethane insulation coating 4, high density polyethylene (HDPE) outer protective layer 5; Alarming line 3 described in it, during fabrication, is embedded in the polyurethane insulation coating 4 near steel pipe, once seepage occurs in pipeline somewhere, by the conduction of alarm line, just can report in dedicated test instrument and warns and demonstrate the size of accurate location and the leak magnitude leaked.Polyurethane insulation coating 4 adds fire retardant, and high density polyethylene (HDPE) outer protective layer 5 adds fire retardant and Conductive carbon powder, and reinforced pipe pipeline outer wall flame-retardant and anti-static performance, uses under being adapted at particular/special requirement environment.
The above; be only the utility model preferably embodiment; protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses, the simple change of the technological scheme that can obtain apparently or equivalent substitution all fall in protection domain of the present utility model.
Claims (1)
1. the prefabricated direct-buried polyurethane thermal pipe of inner liner stainless steel, it is characterized in that: pipeline is from inside to outside made up of inner liner stainless steel layer (1), carbon steel layer (2), alarming line (3), polyurethane insulation coating (4), high density polyethylene (HDPE) outer protective layer (5) successively, and wherein alarming line (3) is embedded in polyurethane insulation coating (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420686941.0U CN204403598U (en) | 2014-11-17 | 2014-11-17 | The prefabricated direct-buried polyurethane thermal pipe of inner liner stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420686941.0U CN204403598U (en) | 2014-11-17 | 2014-11-17 | The prefabricated direct-buried polyurethane thermal pipe of inner liner stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204403598U true CN204403598U (en) | 2015-06-17 |
Family
ID=53427456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420686941.0U Expired - Fee Related CN204403598U (en) | 2014-11-17 | 2014-11-17 | The prefabricated direct-buried polyurethane thermal pipe of inner liner stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204403598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481933A (en) * | 2016-11-03 | 2017-03-08 | 江苏昊晟塑业科技有限公司 | Polyethylene Foam Insulating Pipe road |
-
2014
- 2014-11-17 CN CN201420686941.0U patent/CN204403598U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481933A (en) * | 2016-11-03 | 2017-03-08 | 江苏昊晟塑业科技有限公司 | Polyethylene Foam Insulating Pipe road |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20161117 |