CN2479324Y - Steel pipe fortransfering thermal medium - Google Patents
Steel pipe fortransfering thermal medium Download PDFInfo
- Publication number
- CN2479324Y CN2479324Y CN 01216965 CN01216965U CN2479324Y CN 2479324 Y CN2479324 Y CN 2479324Y CN 01216965 CN01216965 CN 01216965 CN 01216965 U CN01216965 U CN 01216965U CN 2479324 Y CN2479324 Y CN 2479324Y
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- CN
- China
- Prior art keywords
- steel pipe
- utility
- model
- insulating layer
- thermal medium
- 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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Abstract
The utility model discloses a steel pipe, in particular to a steel pipe for transmitting thermal mediums. The steel pipe for transmitting thermal mediums comprises a steel pipe 1. The utility model is characterized in that a fire resistant sliding covering 2 is disposed on the outer surface of the steel pipe. Compared with the current technology, the utility model has the advantages of smooth surface and small friction. Therefore, when the utility model combined with an outer insulating layer, the friction between the utility model and the outer insulating layer is reduced greatly, thereby effectively preventing compression and laceration of the insulating layer, greatly lowering escape of heat quantity and simultaneously reducing corrosion that subsurface water (steam) acts on the steel pipe. Damage rate of the insulating layer can be reduced to 80%, heat dissipation is lowered from 10 DEG C/ kilometer to 2.67 DEG C/ kilometer, and the service life of the steel pipe can be prolonged by 30%.
Description
The utility model relates to a kind of steel pipe, a kind of steel pipe of carrying thermal medium of more specifically saying so.
The existing steel pipe of carrying thermal medium, its Biao Mian Cu Zao, by dress the time, its outer surface is coated thermal insulation layer.When carrying thermal medium, because the thermal expansion coefficient of steel pipe is different with the thermal expansion coefficient of thermal insulation layer, between steel pipe and the thermal insulation layer relative movement takes place, this relative movement usually causes the overstocked, damaged of thermal insulation layer, and heat is escaped, and causes heat loss; Simultaneously underground water (vapour) is penetrated on the steel pipe, steel pipe is got rusty, the life-span reduces.
The purpose of this utility model is to provide a kind of and can overcome above deficiency, the steel pipe of the raising heat insulation effect and the conveying thermal medium in working life.
The purpose of this utility model reaches by technological scheme once.The steel pipe of this conveying thermal medium is made up of steel pipe 1, and its special way is, is provided with a resistant to elevated temperatures slip coating 2 at the outer surface of this steel pipe.The effect of this high temperature resistant slip coating is, reduces the frictional force between steel pipe and the thermal insulation layer, prevents overstocking and tearing of thermal insulation pipe.Therefore require slip coating that two characteristics must be arranged, the one, high temperature resistant, the 2nd, smooth, frictional force is little.As high temperature resistant graphite layer, resistant to elevated temperatures talcum bisque etc.
The thickness of described slip coating is 3-12mm.
Because the utility model scribbles the high temperature resistant slip coating of one deck at the outer surface of steel pipe, makes it compared with prior art, has smooth surface, the characteristics that frictional force is little.Therefore, when with after thermal insulation layer combines, the frictional force between the two reduces greatly, when effectively having prevented between the two because of the thermal expansion coefficient difference relative movement, the phenomenon that the thermal insulation layer extruding is torn greatly reduces heat and overflows, and has reduced the erosion of underground water (vapour) to steel pipe simultaneously.Test shows, this steel pipe is with after thermal insulation layer combines, and the damage percentage of thermal insulation layer has descended 80%, and heat loss drops to every km 2,67 degree by every km 10 degree.Prolonged 30% the working life of steel pipe.
The explanation of accompanying drawing drawing
An embodiment's of Fig. 1-the utility model structural representation.
The A-A sectional drawing of Fig. 2-Fig. 1.
A kind of user mode reference drawing of Fig. 3-steel pipe shown in Figure 1.
The B-B sectional drawing of Fig. 4-Fig. 3.
Provide embodiment of the present utility model below in conjunction with accompanying drawing, be used for further specifying technical solution.
Embodiment 1, with reference to figure 1-Fig. 4.High temperature resistant slip coating 2 on steel pipe 1 outer surface is high temperature resistant graphite layer, and its thickness is 3-12mm.Thermal insulation layer 3 is inorganic insulating layer 3-1 from inside to outside, radiation protective layer 3-2, and organic heat-insulating layer 3-3 and external protection 3-4 form.This structural thermal insulation of thermal insulation layer 3 is effective, long service life.High temperature resistant graphite layer can brush high temperature resistant graphite on the steel pipe with brush and form, and also can high temperature resistant graphite be sprayed onto on the steel pipe with spray gun and form.Brush or when spraying high temperature resistant graphite at first dilutes high temperature resistant graphite with thinner, thinner is a benzene class material.
With the technical solution that Rigen provides according to the utility model, can also provide the embodiment that high temperature resistant slip coating is high temperature resistant talcum bisque.High temperature resistant talcum bisque is by industrial French chalk (55%-65%), rise cementation neutral liquid soluble glass (modulus＞=3,35%-40%) and the prodan (3-10) that plays the accelerated solidification effect make.
Claims (4)
1, a kind of steel pipe of carrying thermal medium, it is made up of steel pipe (1), it is characterized in that, is provided with a resistant to elevated temperatures slip coating (2) at the outer surface of this steel pipe.
2, a kind of steel pipe of carrying thermal medium according to claim 1 is characterized in that, described slip coating is resistant to elevated temperatures graphite coating.
3, a kind of steel pipe of carrying thermal medium according to claim 1 is characterized in that, described slip coating is resistant to elevated temperatures talcum bisque.
4, according to claim 1,2,3 described a kind of steel pipes of carrying thermal medium, it is characterized in that the thickness of described slip coating is 3-12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01216965 CN2479324Y (en) | 2001-03-13 | 2001-03-13 | Steel pipe fortransfering thermal medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01216965 CN2479324Y (en) | 2001-03-13 | 2001-03-13 | Steel pipe fortransfering thermal medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2479324Y true CN2479324Y (en) | 2002-02-27 |
Family
ID=33635279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01216965 Expired - Fee Related CN2479324Y (en) | 2001-03-13 | 2001-03-13 | Steel pipe fortransfering thermal medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2479324Y (en) |
-
2001
- 2001-03-13 CN CN 01216965 patent/CN2479324Y/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 | ||
| 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 |