CN206221903U - A kind of complex heat-preservation tubing - Google Patents
A kind of complex heat-preservation tubing Download PDFInfo
- Publication number
- CN206221903U CN206221903U CN201621253371.1U CN201621253371U CN206221903U CN 206221903 U CN206221903 U CN 206221903U CN 201621253371 U CN201621253371 U CN 201621253371U CN 206221903 U CN206221903 U CN 206221903U
- Authority
- CN
- China
- Prior art keywords
- inner tube
- complex heat
- preservation
- protecting pipe
- positioning sleeve
- 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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- Thermal Insulation (AREA)
Abstract
The utility model discloses a kind of complex heat-preservation tubing, it includes inner tube and the protecting pipe being set in outside inner tube, described inner tube excircle is arranged with circular orientation set, the leg offseted with sheath inside pipe wall is evenly equipped with described positioning sleeve excircle, gap between described inner tube and protecting pipe is also filled with polyurethane foam, and the utility model product structure is simple, production is convenient, high insulating effect.
Description
Technical field
The utility model is related to composite pipe field, especially a kind of complex heat-preservation tubing.
Background technology
At present complex heat-preservation tubing on the market carried out in the form of outer coating insulation material mostly tubing insulation or
The tubing with many composite beds is produced using multi-layer co-extruded equipment, using the thermal coefficient differences between different composite layer
To carry out inner tube insulation, due to directly coating insulation material form can make insulation material directly it is naked be exposed on the external, be easily caused
Insulation material is done sth. in advance aging or is ftractureed after expanding with heat and contract with cold, and substantially reduces its heat insulation effect, is given birth to using multi-layer co-extruded equipment
The tubing of product, because its equipment investment is high, often the price of product is very high, and cost performance is relatively low.
The content of the invention
In order to solve the deficiencies in the prior art, the purpose of this utility model be provide a kind of simple structure, production it is convenient,
The complex heat-preservation tubing of high insulating effect.
In order to realize above-mentioned technical purpose, the technical solution of the utility model is：A kind of complex heat-preservation tubing, it includes
Inner tube and the protecting pipe being set in outside inner tube, described inner tube excircle are arranged with circular orientation set, and described positioning sleeve is cylindrical
The leg offseted with sheath inside pipe wall is evenly equipped with week, the gap between described inner tube and protecting pipe is also filled with polyurethane bubble
Foam.
Further, the thermal conductivity factor of described polyurethane foam is 0.022~0.033W/（m•k）.
Further, described inner tube is polyvinyl chloride, polyethylene, polypropylene or polybutene material.
Further, described protecting pipe is polyvinyl chloride, polyethylene or polypropylene material.
Further, described positioning sleeve is integrated injection moulding.
Further, the leg quantity on described positioning sleeve excircle is 4.
Further, described positioning sleeve leg is arcuate structure with the end that protecting pipe offsets.
Using above-mentioned technical scheme, the beneficial effects of the utility model are：Protecting pipe is arranged outside inner tube makes inner tube exist
Can avoid being damaged because of colliding with when using, while inner and outer tubes are adjusted into concentric structure using positioning sleeve, make to fill out
Inner tube can be made not shift when filling polyurethane foam, conveniently carry out the uniformity of operation and polyurethane foam filling, it is ensured that
Heat insulation effect after tubing use.
Brief description of the drawings
The utility model is further elaborated with reference to the accompanying drawings and detailed description：
Fig. 1 is the generalized section of the utility model product；
Fig. 2 is the schematic diagram of the utility model product orientation set.
Specific embodiment
As shown in Fig. 1 to one of 2, the utility model includes inner tube 1 and the protecting pipe 2 being set in outside inner tube 1, and described is interior
The excircle of pipe 1 is arranged with circular orientation set 3, and the leg offseted with the inwall of protecting pipe 2 is evenly equipped with the described excircle of positioning sleeve 3
31, the gap between described inner tube 1 and protecting pipe 2 is also filled with polyurethane foam 4.
Can be 0.022~0.033W/ from thermal conductivity factor to improve the heat-insulating property of tubing（m•k）Polyurethane
Foam 4 fills the gap between inner tube 1 and protecting pipe 2.
In order to improve the service life of tubing, the material of inner tube 1 is available to have good acid and alkali-resistance and corrosion resistant polychlorostyrene second
Alkene, polyethylene, polypropylene or polybutene material are made, and protecting pipe 2 is made of polyvinyl chloride, polyethylene or polypropylene material.
Due to carrying out that when polyurethane foam 4 is filled a large amount of gases can be produced between inner tube 1 and protecting pipe 2, in order to avoid
The positioning sleeve 3 being arranged outside inner tube 1 is deformed upon, and positioning sleeve 3 uses integrated injection molding, while the branch on the excircle of positioning sleeve 3
The quantity of pin 31 is set to 4, and the end that leg 31 and the protecting pipe 2 of positioning sleeve 3 offset is arcuate structure, it is to avoid tubing had been arranged
Scuffing is caused in journey to the inwall of protecting pipe 2, makes it that stress concentration occur when by external force, cause rupture.
Specific embodiment of the present utility model is the foregoing described, it will be appreciated by those of skill in the art that this is only
Be for example, those skilled in the art is on the premise of without departing substantially from principle of the present utility model and essence, can be to this reality
The mode of applying makes various changes or modifications, but these changes and modification each fall within protection domain of the present utility model.
Claims (7)
1. a kind of complex heat-preservation tubing, it is characterised in that：It includes inner tube and the protecting pipe being set in outside inner tube, described inner tube
Excircle is arranged with circular orientation set, and the leg offseted with sheath inside pipe wall is evenly equipped with described positioning sleeve excircle, described
Inner tube and protecting pipe between gap be also filled with polyurethane foam.
2. a kind of complex heat-preservation tubing according to claim 1, it is characterised in that：The heat conduction system of described polyurethane foam
Number is 0.022~0.033W/（m·k）.
3. a kind of complex heat-preservation tubing according to claim 1, it is characterised in that：Described inner tube is polyvinyl chloride, gathers
Ethene, polypropylene or polybutene material.
4. a kind of complex heat-preservation tubing according to claim 1, it is characterised in that：Described protecting pipe be polyvinyl chloride,
Polyethylene or polypropylene material.
5. a kind of complex heat-preservation tubing according to claim 1, it is characterised in that：Described positioning sleeve is integrated and is molded into
Type.
6. a kind of complex heat-preservation tubing according to claim 1, it is characterised in that：Branch on described positioning sleeve excircle
Pin quantity is 4.
7. a kind of complex heat-preservation tubing according to claim 1, it is characterised in that：Described positioning sleeve leg and protecting pipe
The end for offseting is arcuate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621253371.1U CN206221903U (en) | 2016-11-22 | 2016-11-22 | A kind of complex heat-preservation tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621253371.1U CN206221903U (en) | 2016-11-22 | 2016-11-22 | A kind of complex heat-preservation tubing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206221903U true CN206221903U (en) | 2017-06-06 |
Family
ID=58790522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621253371.1U Expired - Fee Related CN206221903U (en) | 2016-11-22 | 2016-11-22 | A kind of complex heat-preservation tubing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206221903U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110712396A (en) * | 2019-09-23 | 2020-01-21 | 镇江荣诚管业有限公司 | Heat-preservation and heat-insulation PP pipe and preparation process thereof |
-
2016
- 2016-11-22 CN CN201621253371.1U patent/CN206221903U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110712396A (en) * | 2019-09-23 | 2020-01-21 | 镇江荣诚管业有限公司 | Heat-preservation and heat-insulation PP pipe and preparation process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170606 Termination date: 20181122 |