CN2434519Y - Temp resistance compound thermal insulating tube - Google Patents
Temp resistance compound thermal insulating tube Download PDFInfo
- Publication number
- CN2434519Y CN2434519Y CN 00242923 CN00242923U CN2434519Y CN 2434519 Y CN2434519 Y CN 2434519Y CN 00242923 CN00242923 CN 00242923 CN 00242923 U CN00242923 U CN 00242923U CN 2434519 Y CN2434519 Y CN 2434519Y
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- insulating layer
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Abstract
The utility model discloses a temperature resistance compound thermal insulating pipe, which is composed of a work steel pipe, an anticorrosive layer, a drag reduction layer, a heat-insulating layer and a protective layer, wherein the heat-insulating layer is respectively provided with a hard inorganic heat-insulating layer, a semi-hard inorganic heat-insulating layer of alkali free long fiber centrifugal glass wool and an organic heat-insulating layer from inside to outside. The utility model has the advantages of simple structure, low cost, good thermal insulation, long service life, etc.
Description
The utility model relates to a kind of high-temperature resistant composite thermal insulating tube, and it is heat preservation pipe prefabricated to belong to a kind of conveying high-temperature steam medium.
Be used to carry the pipeline (comprising direct-burried and built on stilts) of high-temperature steam medium to have following several substantially at present: a kind of is that thermal insulation layer is made of hard inorganic insulating layer and organic heat-insulating layer, be that hard calcium silicate heat-preserving layer and polyurethane foam thermal insulation layer constitute, this technology is simple, but comprehensive thermal conductivity is big, the heat insulation effect that reaches expection just must increase the thickness of thermal insulation layer, is difficult to guarantee quality of product.Another kind is that the thermal insulation layer level is many, and heat insulation effect is better than above-mentioned, but complex structure, take a lot of work, the cost height, the general user be difficult for to accept.
The purpose of this utility model is to overcome the deficiency in the background technique and the high-temperature resistant composite thermal insulating tube of a kind of simple and reasonable, high insulating effect, long service life is provided.
The purpose of this utility model is achieved in that it is to be made of working steel tube, anticorrosive coat, drag reduction layer, thermal insulation layer, protective layer, and its thermal insulation layer is followed successively by hard inorganic insulating layer, the semi-rigid inorganic insulating layer of alkali-free long fibre centrifugally glass-wool, organic heat-insulating layer from inside to outside.
The utility model compared with prior art has following advantage:
1, simple and reasonable;
2, because thermal insulation layer is followed successively by hard heat-insulated layer, the semi-rigid inorganic insulating layer of alkali-free long fibre centrifugally glass-wool, organic heat-insulating layer from inside to outside, the thermal insulation layer of these three kinds of unlike materials, according to the setting that diminishes gradually from inside to outside of temperature tolerance and thermal conductivity, its comprehensive thermal conductivity of the high-temperature resistant composite thermal insulating tube that is constituted is little, and heat waste is little.The inorganic insulating layer of hard adopts calcium silicate, and it has good heat resistance, but thermal conductivity is bigger.And the semi-rigid layer adopts alkali-free long fibre centrifugally glass-wool, and it has when density and surpasses 50kg/m
3The time thermal conductivity along with the indeclinable substantially characteristics of increase in density, this in addition glass wool also has after the water logging dry bulk constant and rebound elasticity good again, can remedy calcium silicate watt formation hard heat-insulated layer watt and watt between the slit, prevent the generation of heat bridge, also have this material to help humidity discharging, be particularly suitable for direct-burried and use.Organically polyurethane foam layer thermal conductivity is little, and heat resistance is poor, and it is at outermost surface, and these three layers make up for each other's deficiencies and learn from each other, and it is little to reach comprehensive heat waste, and cost is lower, makes simple;
3, the thermal insulation layer owing to three kinds of unlike materials rationally is provided with, and between hard heat-insulated layer and working steel tube, be provided with the drag reduction layer, thereby reduced working steel tube in the operating friction of expanding with heat and contract with cold with hard heat-insulated layer of heat, made watt not cracky of calcium silicate, prolonged working life.
Description of drawings:
Accompanying drawing is the utility model structural representation
Among the figure: working steel tube 1, anticorrosive coat 2, drag reduction layer 3, hard inorganic insulating layer 4, semi-rigid inorganic insulating layer 5, organic heat-insulating layer 6, protective layer 7
Below in conjunction with drawings and Examples in detail the utility model is described in detail:
Overall structure is followed successively by working steel tube 1, anticorrosive coat 2, drag reduction layer 3, hard inorganic insulating layer 4, semi-rigid inorganic insulating layer 5, organic heat-insulating layer 6, protective layer 7 as shown in the figure from inside to outside.Hard inorganic insulating layer of the present utility model 4 adopts the hydrophobic microporous calcium silicate watt of the high temperature resistant hydrophobic material of microporous calcium silicates surface spraying; semi-rigid inorganic insulating layer 5 adopts alkali-free long fibre centrifugally glass-wool; protective layer is a glass fibre reinforced plastics, also available steel pipe or high-density polyethylene plastics shell.The utility model is mainly done direct buried pipe and is used, and also can make somebody a mere figurehead use in the open.
Claims (1)
1, a kind of high-temperature resistant composite thermal insulating tube; comprise working steel tube, anticorrosive coat, drag reduction layer, protective layer, it is characterized in that: thermal insulation layer is followed successively by hard inorganic insulating layer, the semi-rigid inorganic insulating layer of alkali-free long fibre centrifugally glass-wool, organic heat-insulating layer from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00242923 CN2434519Y (en) | 2000-07-07 | 2000-07-07 | Temp resistance compound thermal insulating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00242923 CN2434519Y (en) | 2000-07-07 | 2000-07-07 | Temp resistance compound thermal insulating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2434519Y true CN2434519Y (en) | 2001-06-13 |
Family
ID=33602942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00242923 Expired - Fee Related CN2434519Y (en) | 2000-07-07 | 2000-07-07 | Temp resistance compound thermal insulating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2434519Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062518A (en) * | 2013-01-08 | 2013-04-24 | 北京三益能源环保发展股份有限公司 | High-temperature fluid delivery pipe |
| CN104482328A (en) * | 2014-12-09 | 2015-04-01 | 上海海隆石油化工研究所 | Anticorrosion insulation multilayer system for deep-sea steel delivery pipes |
| CN105156768A (en) * | 2015-09-07 | 2015-12-16 | 唐山丰南君业节能保温材料有限公司 | Prefabricated overhead steam heat preservation pipeline and production technology |
| CN105823108A (en) * | 2016-06-17 | 2016-08-03 | 南京苏夏工程设计有限公司 | Ultra-distance steam conveying pipeline |
| CN105864581A (en) * | 2016-06-12 | 2016-08-17 | 韩松 | Multifunctional composite thermal-insulating layer |
-
2000
- 2000-07-07 CN CN 00242923 patent/CN2434519Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062518A (en) * | 2013-01-08 | 2013-04-24 | 北京三益能源环保发展股份有限公司 | High-temperature fluid delivery pipe |
| CN104482328A (en) * | 2014-12-09 | 2015-04-01 | 上海海隆石油化工研究所 | Anticorrosion insulation multilayer system for deep-sea steel delivery pipes |
| CN105156768A (en) * | 2015-09-07 | 2015-12-16 | 唐山丰南君业节能保温材料有限公司 | Prefabricated overhead steam heat preservation pipeline and production technology |
| CN105864581A (en) * | 2016-06-12 | 2016-08-17 | 韩松 | Multifunctional composite thermal-insulating layer |
| CN105864581B (en) * | 2016-06-12 | 2017-10-24 | 韩松 | A kind of multi-functional composite heat-insulating layer |
| CN105823108A (en) * | 2016-06-17 | 2016-08-03 | 南京苏夏工程设计有限公司 | Ultra-distance steam conveying pipeline |
| CN105823108B (en) * | 2016-06-17 | 2018-11-30 | 南京苏夏工程设计有限公司 | A kind of overlength distance conveying jet chimney |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |