CN109595429A - The superhigh temperature utilidor and heat preservation method compound with polyurethane - Google Patents
The superhigh temperature utilidor and heat preservation method compound with polyurethane Download PDFInfo
- Publication number
- CN109595429A CN109595429A CN201910071060.5A CN201910071060A CN109595429A CN 109595429 A CN109595429 A CN 109595429A CN 201910071060 A CN201910071060 A CN 201910071060A CN 109595429 A CN109595429 A CN 109595429A
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- CN
- China
- Prior art keywords
- polyurethane
- temperature
- insulating layer
- utilidor
- heat
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
Abstract
The present invention relates to a kind of and polyurethane compound superhigh temperature utilidors and heat preservation method.Current existing superhigh temperature heat preservation technology, generallys use the thermal insulation materials such as polyurethane, rock wool and silicate technology and keeps the temperature to superhigh temperature pipeline, but thermal coefficient is high, and energy rate of scattering and disappearing is high, and insulation life is short.Its composition of the invention includes: utilidor (1), the utilidor includes instrumentation tubes (5), the instrumentation tubes outer diameter ring-type wraps up aeroge insulating layer (4), the film stock thickness of the aeroge insulating layer is 0.5-1mm/ monolithic, one layer of film is used when wherein temperature is 200 degree and is added up as the temperature rises, the aeroge insulating layer external spray has polyurethane heat-insulation outer jacket (3), installation high density polyethylene (HDPE) winding outer protection tube (2) outside the polyurethane heat-insulation outer jacket, metal iron-clad (6) are installed outside the high density polyethylene (HDPE) winding outer protection tube.The present invention is used for the superhigh temperature utilidor compound with polyurethane.
Description
Technical field:
The present invention relates to the prefabricated heat-insulation and heat-preservation pipeline necks of 600 DEG C of superhigh temperature that heat supply, cooling supply, petroleum and petrochemical industry, ship domain use
Domain, and in particular to a kind of and polyurethane compound superhigh temperature utilidor and heat preservation method.
Background technique:
Current existing superhigh temperature heat preservation technology, generallys use the thermal insulation materials technology such as polyurethane, rock wool and silicate to superelevation
Warm pipeline is kept the temperature, but thermal coefficient is high, and energy rate of scattering and disappearing is high, and insulation life is short.
Summary of the invention:
The object of the present invention is to provide a kind of and polyurethane compound superhigh temperature utilidors and heat preservation method, mainly solve 600
The heat insulation effect of DEG C pipeline is poor, and thermal coefficient is high, and the energy scatters and disappears height, the short problem of insulation life.
Above-mentioned purpose is realized by following technical scheme:
A kind of and compound superhigh temperature utilidor of polyurethane, composition includes: utilidor, and the utilidor includes work
It manages, the instrumentation tubes outer diameter ring-type wraps up aeroge insulating layer, and the film stock thickness of the aeroge insulating layer is 0.5-
1mm/ monolithic uses one layer of film and adds up as the temperature rises when wherein temperature is 200 degree, the aeroge is protected
Warm layer external spray has polyurethane heat-insulation outer jacket, installation high density polyethylene (HDPE) winding outside the polyurethane heat-insulation outer jacket
Metal iron-clad is installed in outer protection tube, the high density polyethylene (HDPE) winding outer protection tube outside.
The superhigh temperature utilidor compound with polyurethane, the instrumentation tubes are steel pipe, and the aeroge is protected
Warm layer is aerosil, and the polyurethane heat-insulation outer jacket uses polyurethane complex protection or the compound guarantor of silicate
Shield, the work pipe diameter are -2000 millimeters of DN15 millimeter.
A kind of and polyurethane compound superhigh temperature utilidor and heat preservation method, this method comprises the following steps:
It is by instrumentation tubes first, i.e. high temperature conveyance conduit will pass through welding flaw detection processing and preservative treatment, in the state of room temperature,
Energy band temperature does not operate, and according to the aeroge insulating layer of the resistance to 100-600 DEG C of high temperature of medium temperature selection, is in by the instrumentation tubes
Ring-type wraps；
According to medium temperature and heat preservation demand, the installation for being further added by the aeroge insulating layer of multilayer can be taken, when temperature is 200 degree
Using the film package of one layer of aeroge insulating layer, as the temperature rises, every 200 degree of raising is increased by one layer of aeroge heat preservation
The film package of layer until carrying out being added to 1000 degree, realizes that waste heat radiation is lower than 100 degree of requirement；
Then spraying polyurethane insulating layer, polyurethane foam can be used to be painted on aerogel layer and foam, can also use
Pipe sleeve Manifold technology finally carries out Polyurethane Perfusion foaming, and the polyurethane insulation coating is to aeroge insulating layer and heat reflection
The injury protection that layer is given, and installation metal outer protection tube can be taken according to temperature, high density polyethylene (HDPE) can also be mounted directly and twined
Around outer protection tube, isothermal holding is carried out to the waste heat lower than 100 degree by polyurethane insulation coating, realizes energy-saving and emission-reduction.
The utility model has the advantages that
1. the present invention is a kind of and the compound superhigh temperature utilidor of polyurethane, which is suitable for -50-600 DEG C of temperature model
The prefabricated heat-insulation and heat-preservation pipeline enclosed mainly forms compound superhigh temperature by aeroge insulating layer, polyurethane heat-insulation outer jacket and keeps the temperature
Pipeline, high temperature resistant do not generate carbonization and signs of degradation, while fire-protection rating highest up to 600 DEG C, reach A grades of fire prevention of building etc.
Grade, is resistant to 650 DEG C of flames.
The present invention has ultralow thermally conductive system using aeroge insulating layer and the compound frame mode of polyurethane heat-insulation outer jacket
Number, is embodied in, at 100 DEG C, thermal coefficient 0.022W/MK；At 200 DEG C, thermal coefficient 0.027W/MK；At 500 DEG C
When, thermal coefficient 0.052W/MK, above-mentioned thermal coefficient only has the 20% of Conventional insulation.
The present invention uses aeroge insulating layer, and main material is silica, also referred to as aerosil, the material
Matter is known most light solid, and the 98% of aeroge is air, minimum density 3.55kg/m3, have low-density, high porosity,
Ground thermal coefficient, low-refraction are novel light porous nano technologic materials, are applied belong to head on utilidor at present
Wound technology.
The polyurethane insulation coating that the present invention uses is the injury protection given to aeroge insulating layer and heat-reflecting layer, according to
Temperature can take installation metal outer protection tube, can also be mounted directly high density polyethylene (HDPE) winding outer protection tube, pass through polyurethane insulation coating
Isothermal holding is carried out to the waste heat lower than 100 degree, realizes energy-saving and emission-reduction.
Structure and its heat preserving mode waterproofness of the invention is most strong, and hydrophobic rate is up to 99.5%, longest-lived, 20 years or more nothings
It needs to change, energy conservation is high, and fractional energy savings reaches 30-50%.
Detailed description of the invention:
Attached drawing 1 is structural schematic diagram of the invention.
Attached drawing 2 is the A-A cross-sectional view in attached drawing 1.
Specific embodiment:
Embodiment 1:
A kind of and compound superhigh temperature utilidor of polyurethane, composition includes: utilidor 1, and the utilidor includes
Instrumentation tubes 5, the instrumentation tubes outer diameter ring-type wrap up aeroge insulating layer 4, and the film stock thickness of the aeroge insulating layer is
0.5-1mm/ monolithic uses one layer of film and adds up as the temperature rises when wherein temperature is 200 degree, the airsetting
Glue insulating layer external spray has polyurethane heat-insulation outer jacket 3, installs high-density polyethylene outside the polyurethane heat-insulation outer jacket
Alkene winds outer protection tube 2, installs metal iron-clad 6 outside the high density polyethylene (HDPE) winding outer protection tube.
Embodiment 2:
According to the described in embodiment 1 and compound superhigh temperature utilidor of polyurethane, the instrumentation tubes are steel pipe, the gas
Gel insulating layer is aerosil, and the polyurethane heat-insulation outer jacket uses polyurethane complex protection or silicate
Complex protection, the work pipe diameter are -2000 millimeters of DN15 millimeter.
Embodiment 3:
The heat preservation method of the superhigh temperature utilidor compound with polyurethane according to embodiment 1-2, this method include as follows
Step:
It is by instrumentation tubes first, i.e. high temperature conveyance conduit will pass through welding flaw detection processing and preservative treatment, in the state of room temperature,
Energy band temperature does not operate, and according to the aeroge insulating layer of the resistance to 100-600 DEG C of high temperature of medium temperature selection, is in by the instrumentation tubes
Ring-type wraps；
According to medium temperature and heat preservation demand, the installation for being further added by the aeroge insulating layer of multilayer can be taken, when temperature is 200 degree
Using the film package of one layer of aeroge insulating layer, as the temperature rises, every 200 degree of raising is increased by one layer of aeroge heat preservation
The film package of layer until carrying out being added to 1000 degree, realizes that waste heat radiation is lower than 100 degree of requirement；
Then spraying polyurethane insulating layer, polyurethane foam can be used to be painted on aerogel layer and foam, can also use
Pipe sleeve Manifold technology finally carries out Polyurethane Perfusion foaming, and the polyurethane insulation coating is to aeroge insulating layer and heat reflection
The injury protection that layer is given, and installation metal outer protection tube can be taken according to temperature, high density polyethylene (HDPE) can also be mounted directly and twined
Around outer protection tube, isothermal holding is carried out to the waste heat lower than 100 degree by polyurethane insulation coating, realizes energy-saving and emission-reduction.
The outer protection tube can use high-density polyethylene external protective pipe or metallic jacket protection of pipe shell, and the application is suitable
For the prefabricated heat-insulation and heat-preservation pipeline of -50-600 DEG C of temperature ranges, suitable conduit model DN15mm-2000mm.
Claims (3)
1. a kind of and compound superhigh temperature utilidor of polyurethane, composition includes: utilidor, it is characterized in that: the guarantor
Warm pipeline includes instrumentation tubes, and the instrumentation tubes outer diameter ring-type wraps up aeroge insulating layer, the glue of the aeroge insulating layer
Piece uses one layer of film and adds up as the temperature rises with a thickness of 0.5-1mm/ monolithic when wherein temperature is 200 degree, institute
The aeroge insulating layer external spray stated has polyurethane heat-insulation outer jacket, and installation is highly dense outside the polyurethane heat-insulation outer jacket
It spends polyethylene and winds outer protection tube, metal iron-clad is installed outside the high density polyethylene (HDPE) winding outer protection tube.
2. the according to claim 1 and compound superhigh temperature utilidor of polyurethane, it is characterized in that: the instrumentation tubes are
Steel pipe, the aeroge insulating layer are aerosil, and the polyurethane heat-insulation outer jacket is compound using polyurethane
Protection or silicate complex protection, the work pipe diameter are -2000 millimeters of DN15 millimeter.
3. a kind of heat preservation method using superhigh temperature utilidor compound with polyurethane described in one of claim 1-2,
Be characterized in: this method comprises the following steps:
It is by instrumentation tubes first, i.e. high temperature conveyance conduit will pass through welding flaw detection processing and preservative treatment, in the state of room temperature,
Energy band temperature does not operate, and according to the aeroge insulating layer of the resistance to 100-600 DEG C of high temperature of medium temperature selection, is in by the instrumentation tubes
Ring-type wraps；
According to medium temperature and heat preservation demand, the installation for being further added by the aeroge insulating layer of multilayer can be taken, when temperature is 200 degree
Using the film package of one layer of aeroge insulating layer, as the temperature rises, every 200 degree of raising is increased by one layer of aeroge heat preservation
The film package of layer until carrying out being added to 1000 degree, realizes that waste heat radiation is lower than 100 degree of requirement；
Then spraying polyurethane insulating layer, polyurethane foam can be used to be painted on aerogel layer and foam, can also use
Pipe sleeve Manifold technology finally carries out Polyurethane Perfusion foaming, and the polyurethane insulation coating is to aeroge insulating layer and heat reflection
The injury protection that layer is given, and installation metal outer protection tube can be taken according to temperature, high density polyethylene (HDPE) can also be mounted directly and twined
Around outer protection tube, isothermal holding is carried out to the waste heat lower than 100 degree by polyurethane insulation coating, realizes energy-saving and emission-reduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910071060.5A CN109595429A (en) | 2019-01-25 | 2019-01-25 | The superhigh temperature utilidor and heat preservation method compound with polyurethane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910071060.5A CN109595429A (en) | 2019-01-25 | 2019-01-25 | The superhigh temperature utilidor and heat preservation method compound with polyurethane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109595429A true CN109595429A (en) | 2019-04-09 |
Family
ID=65966754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910071060.5A Pending CN109595429A (en) | 2019-01-25 | 2019-01-25 | The superhigh temperature utilidor and heat preservation method compound with polyurethane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109595429A (en) |
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2019
- 2019-01-25 CN CN201910071060.5A patent/CN109595429A/en active Pending
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