CN204328249U - The standoff heat-insulating composite steel pipe of a kind of band - Google Patents
The standoff heat-insulating composite steel pipe of a kind of band Download PDFInfo
- Publication number
- CN204328249U CN204328249U CN201420775682.9U CN201420775682U CN204328249U CN 204328249 U CN204328249 U CN 204328249U CN 201420775682 U CN201420775682 U CN 201420775682U CN 204328249 U CN204328249 U CN 204328249U
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- CN
- China
- Prior art keywords
- steel pipe
- layer
- thermal insulation
- heat
- outer steel
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Abstract
The utility model specifically discloses the standoff heat-insulating composite steel pipe of a kind of band, comprises outer steel pipe, interior steel pipe; The outside of described outer steel pipe is furnished with thermal insulation coatings layer, thermal insulation layer and protective layer successively; The two ends cover of outer steel pipe has water-proof protection device, described water-proof protection device and thermal insulation coatings layer, thermal insulation layer and protective layer compact siro spinning technology; Described support one end is fixedly connected with on the thermal insulation coatings layer outside steel pipe outside, and the other end contacts with protective layer inwall; Described interior steel pipe socket is loaded in outer steel pipe, and the two ends of outer steel pipe are sealed by head plate and make to be formed between described two pipes vacuum heat-insulating layer, and this vacuum heat-insulating layer is communicated with airtight valve; A kind of NEW TYPE OF COMPOSITE shape steel tube can strengthened heat insulation effect and strengthen steel strength is provided.
Description
Technical field
The utility model relates to field of chemical equipment, particularly relates to the standoff heat-insulating composite steel pipe of a kind of band.
Background technique
Along with domestic to the increase of Demand of Oil & Gas amount, increasing oil-gas transportation changes Cemented filling into by the overland transport commonly used.Cemented filling has the advantages such as easy care, conveying cost is low, transfer efficiency is high.But to carry by heavy viscous crude oil, fuel oil or the natural gas etc. that heat at low temperature environment middle and long distance, traditional steel pipe is no longer applicable, just must use the composite steel tube with heat insulation function, at present, usually be surrounded by rock wool, asbestos etc. as thermal insulation layer in steel pipe outside, but heat insulation effect is not good, and thermal insulation layer do not have waterproofing effect, unfavorable to steel pipe, and need intensity and the sealing of strengthening steel pipe further.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of above background defect that solves, and the one strengthened heat insulation effect and strengthen steel strength is with standoff heat-insulating composite steel pipe.
For solving the problems of the technologies described above, the utility model have employed following technological scheme:
The standoff heat-insulating composite steel pipe of a kind of band, is characterized in that: comprise outer steel pipe (1), interior steel pipe; The outside of described outer steel pipe (1) is furnished with thermal insulation coatings layer (5), thermal insulation layer (4) and protective layer (3) successively; The two ends cover of outer steel pipe (1) has water-proof protection device (2), described water-proof protection device (2) and thermal insulation coatings layer (5), thermal insulation layer (4) and protective layer (3) compact siro spinning technology; Described support (8) one end is fixedly connected with on the thermal insulation coatings layer (5) in steel pipe (1) outside outside, and the other end contacts with protective layer (3) inwall;
Described interior steel pipe (6) is set in outer steel pipe (2), and the two ends of outer steel pipe (1) are sealed by head plate (9) and make to be formed between described two pipes vacuum heat-insulating layer (7), and this vacuum heat-insulating layer (7) is communicated with airtight valve (10).
Further, described protective layer (3) is polyethylene or polypropylene.
Further, described thermal insulation layer (4) is polyurethane.
Further, described thermal insulation coatings layer (5) is composition silicate.
The utility model beneficial effect is compared with prior art:
Described steel pipe adopts polyurethane insulation coating, can play good function of heat insulation, is particularly useful for the long distance delivery to heavy viscous crude oil, fuel oil or the natural gas etc. that have heated under low temperature environment; Protective layer and water-tight device can carry out sealing protection to steel pipe, and anti-sealing, moisture and other multiple corrosive liquids, gas are to the corrosion of steel pipe; Thermal insulation coatings layer has heat reflection, feature that thermal conductivity is low, can strengthen heat insulation effect further, reach energy-conservation object, be strengthened the intensity of steel pipe by support further; Due to the existence of vacuum heat-insulating layer, reduce heat transfer and thermal emissivity rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Standoff heat-insulating composite steel pipe is with to be described further below in conjunction with drawings and Examples to one.
As shown in Fig. 1, the standoff heat-insulating composite steel pipe of a kind of band, is characterized in that: comprise outer steel pipe 1, interior steel pipe; The outside of described outer steel pipe 1 is furnished with thermal insulation coatings layer 5, thermal insulation layer 4 and protective layer 3 successively; The two ends cover of outer steel pipe 1 has water-proof protection device 2, described water-proof protection device 2 and thermal insulation coatings layer 5, thermal insulation layer 4 and protective layer 3 compact siro spinning technology; Described support 8 one end is fixedly connected with on the thermal insulation coatings layer 5 outside steel pipe 1 outside, and the other end contacts with protective layer 3 inwall;
Described interior steel pipe 6 is set in outer steel pipe 2, and the two ends of outer steel pipe 1 are sealed by head plate 9 and make to be formed between described two pipes vacuum heat-insulating layer 7, and this vacuum heat-insulating layer 7 is communicated with airtight valve 10.
Further, described protective layer 3 is polyethylene or polypropylene.
Further, described thermal insulation layer 4 is polyurethane.
Further, described thermal insulation coatings layer 5 is composition silicate.
Description for the understanding of embodiment be only for help understand the utility model, instead of be used for restriction of the present utility model.Those skilled in the art all can utilize thought of the present utility model to carry out some and change and change, as long as its technological means does not depart from thought of the present utility model and main points, still within protection domain of the present utility model.
Claims (4)
1. be with a standoff heat-insulating composite steel pipe, it is characterized in that: comprise outer steel pipe (1), interior steel pipe; The outside of described outer steel pipe (1) is furnished with thermal insulation coatings layer (5), thermal insulation layer (4) and protective layer (3) successively; The two ends cover of outer steel pipe (1) has water-proof protection device (2), described water-proof protection device (2) and thermal insulation coatings layer (5), thermal insulation layer (4) and protective layer (3) compact siro spinning technology; Described support (8) one end is fixedly connected with on the thermal insulation coatings layer (5) in steel pipe (1) outside outside, and the other end contacts with protective layer (3) inwall;
Described interior steel pipe (6) is set in outer steel pipe (2), and the two ends of outer steel pipe (1) are sealed by head plate (9) and make to be formed between described two pipes vacuum heat-insulating layer (7), and this vacuum heat-insulating layer (7) is communicated with airtight valve (10).
2. the standoff heat-insulating composite steel pipe of one band according to claim 1, is characterized in that: described protective layer (3) is polyethylene or polypropylene.
3. the standoff heat-insulating composite steel pipe of one band according to claim 1, is characterized in that: described thermal insulation layer (4) is polyurethane.
4. the standoff heat-insulating composite steel pipe of one band according to claim 1, is characterized in that: described thermal insulation coatings layer (5) is composition silicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420775682.9U CN204328249U (en) | 2014-12-11 | 2014-12-11 | The standoff heat-insulating composite steel pipe of a kind of band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420775682.9U CN204328249U (en) | 2014-12-11 | 2014-12-11 | The standoff heat-insulating composite steel pipe of a kind of band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204328249U true CN204328249U (en) | 2015-05-13 |
Family
ID=53164608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420775682.9U Expired - Fee Related CN204328249U (en) | 2014-12-11 | 2014-12-11 | The standoff heat-insulating composite steel pipe of a kind of band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204328249U (en) |
-
2014
- 2014-12-11 CN CN201420775682.9U patent/CN204328249U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20150513 Termination date: 20151211 |
|
| EXPY | Termination of patent right or utility model |