CN2340999Y - Thermal insulating pipe with low heat radiation - Google Patents
Thermal insulating pipe with low heat radiation Download PDFInfo
- Publication number
- CN2340999Y CN2340999Y CN 98216535 CN98216535U CN2340999Y CN 2340999 Y CN2340999 Y CN 2340999Y CN 98216535 CN98216535 CN 98216535 CN 98216535 U CN98216535 U CN 98216535U CN 2340999 Y CN2340999 Y CN 2340999Y
- Authority
- CN
- China
- Prior art keywords
- layer
- heat
- thickness
- thermal insulation
- airflow
- 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
Links
Images
Landscapes
- Thermal Insulation (AREA)
Abstract
The utility model relates to a thermal insulation pipe with low heat radiation transfer used for the transfer of liquid and gas with high temperature, comprising a steel pipe, an anti rust layer, a thermal insulation layer, asbestos foam spacers, a galvanized iron wire layer, an aeration layer, a heat reflection layer, and an outer protective layer. The structure with low heat radiation transfer that is formed by the aeration layer and the heat reflection layer has the characteristics of advanced technology and energy saving.
Description
The utility model relates to a kind of heat-insulated pipe that is used for the low-heat radiative heat transfer of high-temp liquid gas delivery.
The existing heat-insulated pipe that is used for the high-temp liquid gas delivery adopts aluminum silicate fiber shell, mineral wool cartridge or super glass wool shell to make thermal insulation layer, its insulation layer thickness is too thick, at high temperature volatile its intensity that makes of Bond reduces in the thermal insulation layer, vibration when adding the high temperature pipe operation, cause under the thermal insulation layer and fall, working life is short.Adopt the hard inorganic heat insulation material as thermal insulation layer, add one deck RPUF again to improve the insulating structure of water proofing property as calcium silicate heat-preserving shell, pearlite insulation shell or in its thermal-insulating pipe case outside, working life is longer, but thermal insulation layer is still thick partially, the particularly biquadratic of thermal radiation heat transfer and temperature rising in direct ratio under the high temperature, can only rely on the increase insulation layer thickness to reduce thermal loss, the outer protective layer total surface area also increases like this, and some heat insulating work pipeline is crisscross, closely arrange, do not allow thermal insulation layer too thick.
The purpose of this utility model is to avoid above-mentioned deficiency of the prior art and provides a kind of and can efficiently reduce the heat-insulated pipe that the low-heat radiative heat transfer of insulation layer thickness, insulating efficiency height, remarkable in economical benefits is conducted heat, can reduce significantly in thermal radiation.
The purpose of this utility model can reach by following measure.The heat-insulated pipe of a kind of low-heat radiative heat transfer of the present utility model, comprise steel pipe 1, resin layer 2, it is characterized in that thermal insulation layer 3 being arranged in turn at the outer surface of resin layer 2, foam asbestus pad 4, galvanized wire layer 5, airflow layer 6, heat-reflecting layer 7 and outer protective layer 8, wherein thermal insulation layer 3 is to be made of the cladding of ultralight matter integral hydrophobic calcium silicate shell, the foam-filled asbestos washer 4 of seam crossing between its shell, airflow layer 6 is to be made of the cellular structure inflation that the kraft paper that is coated with polyester coating is outward made, heat-reflecting layer 7 is to be made of the titanium-aluminium alloy film that is coated with polyester coating outward, and outer protective layer 8 is to strengthen the cloth cladding by PVC to constitute.
The heat-insulated pipe of low-heat radiative heat transfer is characterized in that thermal insulation layer 3 also can be made of the cladding of water-proof pearlite shell, and airflow layer 6 also can constitute by moulding the vacuolar membrane inflation, and outer protective layer 8 also can be made of imitative metal material sheet cladding.
The heat-insulated pipe of low-heat radiative heat transfer, it is characterized in that the steel pipe of steel pipe 1 for long 2～24m, external diameter φ 50～1300mm, the thickness of resin layer 2 is 0.1～2mm, insulation layer thickness is 30～300mm, foam asbestus pad 4 thickness are 2～12mm, and galvanized wire layer 5 thickness are 1～3mm, and airflow layer 6 thickness are 2～12mm, heat-reflecting layer 7 thickness are 2～20 μ m, and the thickness of outer protective layer 8 is 0.05～2mm.
The heat-insulated pipe of low-heat radiative heat transfer, more excellent special case is that steel pipe 1 is the steel pipe of long 12m, external diameter φ 114mm, resin layer 2 thickness are 0.5mm, the thickness of thermal insulation layer 3 is 55mm, the thickness of foam asbestus pad 4 is 5mm, and the thickness of galvanized wire layer 5 is 1mm, and the thickness of airflow layer 6 is 8mm, the thickness of heat-reflecting layer 7 is 4 μ m, and the thickness of outer protective layer 8 is 1mm.
The heat-insulated pipe of low-heat radiative heat transfer, more excellent airflow layer 6 are to be made of the hexagon cellular structure inflation that the kraft paper that is coated with polyester coating is outward made.
Further specify the utility model below in conjunction with accompanying drawing.
Fig. 1 is the sectional view of the heat-insulated pipe of low-heat radiative heat transfer of the present utility model.
Among the figure: the 1-steel pipe; The 2-resin layer; The 3-thermal insulation layer; 4-foam asbestus pad; 5-galvanized wire layer; The 6-airflow layer; The 7-heat-reflecting layer; The 8-outer protective layer.
During manufacturing at first with steel pipe 1 outer surface processing of rust removing, brushing modified organic silicon class or other thermostable rustproof coat with lacquer then, treat to clad after rust preventive coating is done admittedly the shell of thermal insulation layer 3, seam crossing is inserted foam asbestus pad 4 between its shell, bind with galvanized wire layer 5, clad airflow layer 6, heat-reflecting layer 7 and outer protective layer 8 again.
At long 12m, the thick red lead anti-corrosive paint of the outer surface brushing 0.5mm of the steel pipe 1 of φ 114mm external diameter is as resin layer 2, outer surface at resin layer 2 clads the thick ultralight matter integral hydrophobic heat-insulating calcium silicate shell of 55mm as thermal insulation layer 3, seam crossing is inserted the thick elasticity hydrophobic foam asbestus pad 4 of 5mm between its shell, outer surface at thermal insulation layer 3 binds the thick galvanized wire layer 5 of 1mm, clad the airflow layer 6 that thick outer of 8mm is coated with the ox-hide of polyester coating hexagon cellular structure made of paper again, clad the heat-reflecting layer 7 that 4 μ m are coated with the titanium-aluminium alloy film of polyester coating outside thick at airflow layer 6 outer surfaces, strengthen the outer protective layer 8 of cloth in the thick PVC of the outer surface cladding 1mm of heat-reflecting layer 7.
The heat-insulated pipe of this low-heat radiative heat transfer, under 150～300 ℃ of medium temperatures, move to thermal steady state, detect its surface radiating loss then, by the one-level detection method of standard method regulation, survey its surface heat flux and surface temperature, both are average, the result shows, under equal conditions, the heat-insulated pipe of low-heat radiative heat transfer of the present utility model is not compared with the heat-insulated pipe of heat-reflecting layer 7 with there being airflow layer 6, on average reduces surface radiating with a toll of more than 17%.
Embodiment 2
Identical with embodiment 1, difference is that the cladding of the thick water-proof pearlite shell of thermal insulation layer 3 usefulness 55mm constitutes, and airflow layer 6 is moulded the vacuolar membrane inflation and constituted by 5mm is thick, and outer protective layer 8 is formed by the imitative metal material sheet cladding of thick 1mm.This structure is compared with the structure that condition of equivalent thickness does not have low-heat radiative heat transfer layer, can on average reduce surface radiating with a toll of more than 19%.
The utility model compared with prior art has the following advantages:
1, the heat-insulated pipe of low heat radiation of the present utility model can be used for high-temp liquid gas Conveying, the raw material wide material sources, manufacturing process is simple, insulation effect is good, service life Long.
2, adopt the Ultralight integral hydrophobic calcium silicate heat-preserving layer can anti-1000 ℃ of high temperature, have 99% integral hydrophobic effect, no burn into is pollution-free.
3, have airflow layer and heat-reflecting layer the low heat radiation structure, adiabatic significantly, joint Can the effect height.
Claims (5)
1, a kind of heat-insulated pipe of low-heat radiative heat transfer, comprise steel pipe (1), resin layer (2), it is characterized in that thermal insulation layer (3) being arranged in turn at the outer surface of resin layer (2), foam asbestus pad (4), galvanized wire layer (5), airflow layer (6), heat-reflecting layer (7) and outer protective layer (8), wherein thermal insulation layer (3) is to be made of the cladding of ultralight matter integral hydrophobic calcium silicate shell, the foam-filled asbestos washer of seam crossing (4) between its shell, airflow layer (6) is to be made of the cellular structure inflation that the kraft paper that is coated with polyester coating is outward made, heat-reflecting layer (7) is to be made of the titanium-aluminium alloy film that is coated with polyester coating outward, and outer protective layer (8) is to strengthen the cloth cladding by PVC to constitute.
2, a kind of heat-insulated pipe of low-heat radiative heat transfer as claimed in claim 1 is characterized in that thermal insulation layer (3) is to be made of the cladding of water-proof pearlite shell, and airflow layer (6) is to constitute by moulding the vacuolar membrane inflation, and outer protective layer (8) is to be made of imitative metal material sheet cladding.
3, a kind of heat-insulated pipe of low-heat radiative heat transfer as claimed in claim 1 or 2, it is characterized in that the steel pipe of steel pipe (1) for long 2～24m, external diameter φ 50～1300mm, the thickness of resin layer (2) is 0.1～2mm, thick 30～the 300mm of thermal insulation layer (3), foam asbestus pad (4) thickness is 2～12mm, and galvanized wire layer (5) thickness is 1～3mm, and airflow layer (6) thickness is 2～12mm, heat-reflecting layer (7) thickness is 2～20 μ m, and the thickness of outer protective layer (8) is 0.05～2mm.
4, a kind of heat-insulated pipe of low-heat radiative heat transfer as claimed in claim 1 or 2, it is characterized in that steel pipe (1) is the steel pipe of long 12m, external diameter φ 114mm, resin layer (2) thickness is 0.5mm, the thickness of thermal insulation layer (3) is 55mm, the thickness of foam asbestus pad (4) is 5mm, and the thickness of galvanized wire layer (5) is 1mm, and the thickness of airflow layer (6) is 8mm, the thickness of heat-reflecting layer (7) is 4 μ m, the thickness 1mm of outer protective layer (8).
5, a kind of heat-insulated pipe of low-heat radiative heat transfer as claimed in claim 1 is characterized in that airflow layer (6) is to be made of the hexagon cellular structure inflation that the kraft paper that is coated with polyester coating is outward made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98216535 CN2340999Y (en) | 1998-07-11 | 1998-07-11 | Thermal insulating pipe with low heat radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98216535 CN2340999Y (en) | 1998-07-11 | 1998-07-11 | Thermal insulating pipe with low heat radiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2340999Y true CN2340999Y (en) | 1999-09-29 |
Family
ID=33969451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98216535 Expired - Fee Related CN2340999Y (en) | 1998-07-11 | 1998-07-11 | Thermal insulating pipe with low heat radiation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2340999Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016907A (en) * | 2012-12-17 | 2013-04-03 | 福建源鑫环保科技有限公司 | Air-out heat preservation method for furnace in fluid bed and structure thereof |
| CN104879612A (en) * | 2015-05-04 | 2015-09-02 | 大唐国际发电股份有限公司 | Composite insulation material and insulation method thereof |
| CN105889648A (en) * | 2016-06-07 | 2016-08-24 | 天津市管道工程集团有限公司 | Directly-buried steam heat preservation pipe |
| CN106321993A (en) * | 2016-08-31 | 2017-01-11 | 天津市管道工程集团有限公司 | Anti-flaming heat preservation pipe having damping function |
| CN107387886A (en) * | 2016-05-17 | 2017-11-24 | 高金龙 | Direct buried anticorrosion heat-preserving composite pipeline |
-
1998
- 1998-07-11 CN CN 98216535 patent/CN2340999Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016907A (en) * | 2012-12-17 | 2013-04-03 | 福建源鑫环保科技有限公司 | Air-out heat preservation method for furnace in fluid bed and structure thereof |
| CN104879612A (en) * | 2015-05-04 | 2015-09-02 | 大唐国际发电股份有限公司 | Composite insulation material and insulation method thereof |
| CN104879612B (en) * | 2015-05-04 | 2017-06-20 | 大唐国际发电股份有限公司 | A kind of compound insulating material and heat preserving method |
| CN107387886A (en) * | 2016-05-17 | 2017-11-24 | 高金龙 | Direct buried anticorrosion heat-preserving composite pipeline |
| CN105889648A (en) * | 2016-06-07 | 2016-08-24 | 天津市管道工程集团有限公司 | Directly-buried steam heat preservation pipe |
| CN105889648B (en) * | 2016-06-07 | 2018-08-28 | 天津市管道工程集团有限公司 | Direct buried steam pipeline |
| CN106321993A (en) * | 2016-08-31 | 2017-01-11 | 天津市管道工程集团有限公司 | Anti-flaming heat preservation pipe having damping function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210716325U (en) | Hot water pipeline with nanometer aerogel heat preservation | |
| CN2340999Y (en) | Thermal insulating pipe with low heat radiation | |
| CN202327525U (en) | Overhead steam conveying pipeline | |
| Wei et al. | Development of a new silicate thermal insulation coating and analysis of heat storage characteristics | |
| CN2438910Y (en) | Internal sliding precast steam direct-buried composite insulation pipe | |
| CN86207500U (en) | Direct buried insulation tube for resisting corrosion and high temperature | |
| CN218409064U (en) | Aerogel composite thermal insulation layer and heat insulation pipeline | |
| CN1123615C (en) | Energy saving composite heat insulation material | |
| CN215172873U (en) | Prefabricated direct-burried energy-conserving insulating tube of nanometer heat preservation | |
| CN2682268Y (en) | Multilayer heat-insulated pipe for delivering high temperature stream | |
| CN211574438U (en) | Prefabricated built on stilts steam insulating tube | |
| CN2101155U (en) | High-temp. resistant direct built-in type thermo-insulating tube | |
| CN211968675U (en) | Purify various steel sheet of environment-friendly | |
| CN2416335Y (en) | Reflective compound insulation casing | |
| CN203115397U (en) | Direct-buried steam conveying pipeline | |
| CN218582609U (en) | Anti-corrosion heat-insulation anti-seepage pipeline | |
| CN106005800A (en) | Photothermal power generation insulation system | |
| CN218378365U (en) | Prefabricated pipe fitting of heat supply plastic pipeline interface | |
| CN1673605A (en) | Thermal insulation energy-saving technology for heat distribution pipeline | |
| CN100449195C (en) | Heat insulating and energy-saving technique for thermal pipes | |
| CN2262483Y (en) | Fire resistant water-proof polyurethane coiled material | |
| CN2218864Y (en) | Composite insulation pipe | |
| CN219712567U (en) | Novel heat power pipeline energy-saving heat preservation structure | |
| CN208981654U (en) | A kind of thermal insulation tile | |
| CN1039934C (en) | Water-proof thermo-insulating composite material for thin light roof |
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 |