CN106499901A - Superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee and heat preserving method - Google Patents
Superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee and heat preserving method Download PDFInfo
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- CN106499901A CN106499901A CN201611229456.0A CN201611229456A CN106499901A CN 106499901 A CN106499901 A CN 106499901A CN 201611229456 A CN201611229456 A CN 201611229456A CN 106499901 A CN106499901 A CN 106499901A
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- heat
- insulation
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- steel pipe
- outside
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Links
- 238000009413 insulation Methods 0.000 title claims abstract description 106
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- 239000011490 mineral wool Substances 0.000 claims abstract description 24
- 239000004814 polyurethane Substances 0.000 claims abstract description 24
- 229920002635 polyurethane Polymers 0.000 claims abstract description 24
- 238000004321 preservation Methods 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 239000004964 aerogel Substances 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 238000005187 foaming Methods 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000011527 polyurethane coating Substances 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 239000003755 preservative agent Substances 0.000 claims description 4
- 230000002335 preservative effect Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000011491 glass wool Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract description 2
- 239000012774 insulation material Substances 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- -1 poly- ammonia Ester Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- 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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
-
- 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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/04—Protection of pipes or objects of similar shape against external or internal damage or wear against fire or other external sources of extreme heat
-
- 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
- F16L59/00—Thermal insulation in general
- F16L59/08—Means for preventing radiation, e.g. with metal foil
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
A kind of superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee and heat preserving method.Original heat preservation technology, is incubated to superhigh temperature pipeline using the insulation material such as polyurethane, rock wool and silicate technology at present, although above-mentioned this structure can play certain insulation effect, but heat conductivity is high, and insulation life is short.A kind of superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee, its composition include：Steel pipe A（1）, steel pipe B (2), rock wool heat-preservation layer,（3）Aeroge heat-insulation layer（4）With polyurethane insulation coating (5), outer wall of steel pipe annularly carries out closing parcel using rock wool, form rock wool heat-preservation layer, closing parcel is annularly carried out using aerogel blanket on the outside of rock wool heat-preservation layer, the outside for being uniformly enclosed with heat-reflecting layer, aeroge heat-insulation layer and reflecting layer on the outside of aeroge heat-insulation layer forms hard polyaminoester spray coating foaming by polyurethane coating.2000 DEG C of utilidors that the present invention is applied to heat supply, cooling, petroleum and petrochemical industry, ship domain are used.
Description
Technical field：
The present invention relates to a kind of superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee and heat preserving method.
Background technology：
Original heat preservation technology, is protected to superhigh temperature pipeline using the insulation material such as polyurethane, rock wool and silicate technology at present
Temperature, although above-mentioned this structure can play certain insulation effect, but heat conductivity is high, and energy rate of scattering and disappearing is high, and the heat-insulation layer longevity
Life is short.
Content of the invention：
It is an object of the invention to provide a kind of superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee and heat preserving method, solve 2000
The heat preservation technology of DEG C pipeline is few, heat insulation effect is poor, and heat conductivity is high, and the energy scatters and disappears height, and insulation life is short, the uneasy congruence of high temperature
Problem.
Above-mentioned purpose is realized by following technical scheme：
A kind of superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee, its composition include：Steel pipe A, steel pipe B, rock wool heat-preservation layer, airsetting
The outer wall of glue heat-insulation layer and polyurethane insulation coating, described steel pipe A and described steel pipe B annularly carries out closing bag using rock wool
Wrap up in, form rock wool heat-preservation layer, closing parcel is annularly carried out using aerogel blanket on the outside of described rock wool heat-preservation layer, formed described
Aeroge heat-insulation layer, be uniformly enclosed with heat-reflecting layer, described aeroge heat-insulation layer on the outside of described aeroge heat-insulation layer
Hard polyaminoester spray coating foaming is formed by polyurethane coating with the outside in described reflecting layer, described polyurethane heat-insulation is formed
Layer, is provided with metal protection layer on the outside of described polyurethane insulation coating.
Described superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee, one end of described steel pipe B is described steel pipe A's
Be vertical welding structure in cambered surface, the other end of described steel pipe B and described steel pipe A are parallel construction, described steel pipe A and
Described steel pipe B constitutes parallel tee.
Described superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee, the aeroge heat-insulation layer on the outside of described steel pipe B with
The internal diameter size of the aeroge heat-insulation layer on the outside of described steel pipe A is identical, the polyurethane insulation coating and gold on the outside of described steel pipe A
Internal diameter size of the internal diameter of category overcoat more than polyurethane insulation coating and metal protection layer on the outside of described steel pipe B.
Described superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee, according to the rising of temperature, can take and be further added by multilamellar
The installation of described aeroge heat-insulation layer and described heat-reflecting layer, between described aeroge heat-insulation layer and described reflecting layer
Stainless steel metal ring-type clip is taken to be fixed the heat-insulation layer for wrapping up.
Described superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee, when described aeroge heat-insulation layer is used alone, outward
Fixed by glass wool cloth uniform winding side.
Described superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee, thickness and gas that described aerogel blanket closing is wrapped up
Gel heat-insulation temperature is proportional.
Described superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee, described steel pipe A and described steel pipe B are through weldering
Connect flaw detection to process and the high temperature conveyance conduit after preservative treatment.
The heat preserving method of described superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee, the method comprise the steps：
Closing parcel is carried out using rock wool in resistant to elevated temperatures pipeline outer wall first, then outside rock wool heat-preservation layer, airsetting is adopted again
Rubber mat carries out closing parcel, and the thickness for closing parcel will be according to the aerogel heat-proof temperature for using, to the pipeline highest temperature and realization
Heat insulation effect data carry out calculated thickness, hard polyaminoester spray is carried out using polyurethane spray coating method outside aeroge finally
Foaming is applied, and is realized hard polyaminoester spraying closing insulation, finally metal protection layer is made in polyurethane external, realize high-temperature pipe
Insulation.
Beneficial effects of the present invention：
1. present invention achieves reduction heat conductivity is low, safety, fire-protection rating are improved, heat-insulating property is strong, long service life, the energy
Efficient utilization, realizes obvious energy-saving and emission-reduction.
High temperature resistant of the present invention, up to 2000 DEG C, does not produce carbonization and signs of degradation；Fire-protection rating highest, reaches building A levels
Fire-protection rating, is resistant to 2000 DEG C of flames；Ultra-low thermal conductivity, 100 DEG C, heat conductivity 0.022W/MK, 200 DEG C, heat conductivity
0.027W/MK, 500 DEG C, heat conductivity 0.052W/MK.Only Conventional insulation 20%；Water proofing property is most strong, and hydrophobic rate reaches
99.5%；Longest-lived, more than 20 years without the need for changing；Energy-conservation is high：Fractional energy savings reaches 30-50%.
The 98% of the aeroge of the present invention is air, and minimum density is 3.55kg/m, is known most light solid, with low
Density, high porosity, heat conductivity, low-refraction, be novel light porous nano technologic material, due to main material be two
Silicon oxide, also referred to as aerosil.
Description of the drawings：
Accompanying drawing 1 is the structural representation of the present invention.
Accompanying drawing 2 is that the main view of accompanying drawing 1 is intended to.
Accompanying drawing 3 is the left view of accompanying drawing 2.
Specific embodiment：
Embodiment 1：
A kind of superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee, its composition include：Steel pipe A1, steel pipe B2, rock wool heat-preservation layer 3,
The outer wall of aeroge heat-insulation layer 4 and polyurethane insulation coating 5, described steel pipe A and described steel pipe B is annularly carried out using rock wool
Closing parcel, forms rock wool heat-preservation layer, annularly carries out closing parcel, shape using aerogel blanket on the outside of described rock wool heat-preservation layer
Into described aeroge heat-insulation layer, heat-reflecting layer, described aeroge on the outside of described aeroge heat-insulation layer, is uniformly enclosed with
The outside in heat-insulation layer and described reflecting layer forms hard polyaminoester spray coating foaming by polyurethane coating, forms described poly- ammonia
Ester heat-insulation layer, is provided with metal protection layer 6 on the outside of described polyurethane insulation coating.
Embodiment 2：
Superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee according to embodiment 1, one end of described steel pipe B is described
It is vertical welding structure in the cambered surface of steel pipe A, the other end of described steel pipe B is parallel construction with described steel pipe A, described
Steel pipe A and described steel pipe B constitute parallel tee.
Embodiment 3：
Superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee according to embodiment 1 or 2, the airsetting on the outside of described steel pipe B
Glue heat-insulation layer is identical with the internal diameter size of the aeroge heat-insulation layer on the outside of described steel pipe A, the polyurethane on the outside of described steel pipe A
Internal diameter chi of the internal diameter of heat-insulation layer and metal protection layer more than polyurethane insulation coating and metal protection layer on the outside of described steel pipe B
Very little.
Embodiment 4：
Superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee according to embodiment 1 or 2 or 3, according to the rising of temperature, can adopt
Take the installation for being further added by aeroge heat-insulation layer and described heat-reflecting layer described in multilamellar, described aeroge heat-insulation layer and described
Reflecting layer between take stainless steel metal ring-type clip to wrap up heat-insulation layer be fixed.
Embodiment 5：
Superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee according to embodiment 1 or 2 or 3 or 4, described aeroge are incubated
When layer is used alone, outside is fixed by glass wool cloth uniform winding.
Embodiment 6：
Superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee according to embodiment 1 or 2 or 3 or 4 or 5, described aeroge
The thickness of felt closing parcel is proportional with aerogel heat-proof temperature.
Embodiment 7：
Superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee according to embodiment 1 or 2 or 3 or 4 or 5 or 6, is characterized in that：
Described steel pipe A and described steel pipe B are processed and the high temperature conveyance conduit after preservative treatment through welding flaw detection.
Embodiment 8：
The heat preserving method of the superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee described in a kind of one of embodiment 17, the method bag
Include following steps：
Closing parcel is carried out using rock wool in resistant to elevated temperatures pipeline outer wall first, then outside rock wool heat-preservation layer, airsetting is adopted again
Rubber mat carries out closing parcel, and the thickness for closing parcel will be according to the aerogel heat-proof temperature for using, to the pipeline highest temperature and realization
Heat insulation effect data carry out calculated thickness, hard polyaminoester spray is carried out using polyurethane spray coating method outside aeroge finally
Foaming is applied, and is realized hard polyaminoester spraying closing insulation, finally metal protection layer is made in polyurethane external, realize high-temperature pipe
Insulation.
Embodiment 9：
High temperature conveyance conduit is processed with after preservative treatment through welding flaw detection, in the state of room temperature, is selected according to medium temperature
Resistance to 450-2000 DEG C of high temperature aeroge heat-insulation layer, high-temperature pipe is annularly wrapped.Then, according to medium temperature and guarantor
Warm demand, takes heat-reflecting layer to carry out wrapping up aeroge heat-insulation layer, according to temperature, can take the aeroge insulation for being further added by multilamellar
Layer and the installation of heat-reflecting layer.
Embodiment 10：
Outer protection tube makes or is combined outer protection tube making：
Outer protection tube is that aeroge heat-insulation layer and heat-reflecting layer are given to protect, and can take polyurethane complex protection, silicon according to temperature
Hydrochlorate complex protection etc., then metal outer protection tube is installed, can also be mounted directly metal outer protection tube.
Embodiment 11：
In the state of room temperature, it is impossible to which band temperature operation, the aeroge of the resistance to 450-2000 DEG C of high temperature selected according to medium temperature are protected
Warm layer, high-temperature pipe is annularly wrapped, while according to medium temperature and insulation demand, carrying out parcel gas using heat-reflecting layer
Gel heat-insulation layer, according to the rising of temperature, can take the aeroge heat-insulation layer and the installation of heat-reflecting layer for being further added by multilamellar.
Embodiment 12：
The installation of aeroge heat-insulation layer and heat-reflecting layer is fixed, and stainless steel metal ring-type clip can be taken to enter the heat-insulation layer for wrapping up
Row is fixed, and the tooled joint of heat-insulation layer is processed to be closed using pressure sensitive adhesive tape, when exclusive use aeroge is incubated, outside using glass fiber
Cloth is wound fixation.
Embodiment 13：
The prefabricated heat-insulation and heat-preservation pipeline of this new temperature range suitable for -50-2000 DEG C, pipeline model DN15mm-
2000mm.
Claims (8)
1. a kind of superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee, its composition include：Steel pipe A, steel pipe B, rock wool heat-preservation layer, gas
Gel heat-insulation layer and polyurethane insulation coating, is characterized in that：The outer wall of described steel pipe A and described steel pipe B is in ring using rock wool
Shape carries out closing parcel, forms rock wool heat-preservation layer, is annularly closed using aerogel blanket on the outside of described rock wool heat-preservation layer
Parcel, forms described aeroge heat-insulation layer, is uniformly enclosed with heat-reflecting layer on the outside of described aeroge heat-insulation layer, described
The outside in aeroge heat-insulation layer and described reflecting layer forms hard polyaminoester spray coating foaming by polyurethane coating, is formed described
Polyurethane insulation coating, metal protection layer is installed on the outside of described polyurethane insulation coating.
2. superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee according to claim 1, is characterized in that：Described steel pipe B
One end be vertical welding structure in the cambered surface of described steel pipe A, the other end of described steel pipe B with described steel pipe A is
Parallel construction, described steel pipe A and described steel pipe B constitute parallel tee.
3. superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee according to claim 1 and 2, is characterized in that：Described steel
Aeroge heat-insulation layer on the outside of pipe B is identical with the internal diameter size of the aeroge heat-insulation layer on the outside of described steel pipe A, described steel pipe
The internal diameter of polyurethane insulation coating and metal protection layer on the outside of A is more than the polyurethane insulation coating and metal on the outside of described steel pipe B
The internal diameter size of overcoat.
4. superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee according to claim 1, is characterized in that：Liter according to temperature
Height, takes the installation for being further added by aeroge heat-insulation layer and described heat-reflecting layer described in multilamellar, described aeroge heat-insulation layer
And described reflecting layer between, take stainless steel metal ring-type clip to be fixed the heat-insulation layer for wrapping up.
5. superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee according to claim 4, is characterized in that：Described aeroge
When heat-insulation layer is used alone, outside is fixed by glass wool cloth uniform winding.
6. superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee according to claim 1, is characterized in that：Described aeroge
The thickness of felt closing parcel is proportional with aerogel heat-proof temperature.
7. superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee according to claim 3, is characterized in that：Described steel pipe A
It is to process and the high temperature conveyance conduit after preservative treatment through welding flaw detection with described steel pipe B.
8. the heat preserving method of the superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee described in a kind of one of claim 17, its are special
Levying is：The method comprises the steps：
Closing parcel is carried out using rock wool in resistant to elevated temperatures pipeline outer wall first, then outside rock wool heat-preservation layer, airsetting is adopted again
Rubber mat carries out closing parcel, and the thickness for closing parcel will be according to the aerogel heat-proof temperature for using, to the pipeline highest temperature and realization
Heat insulation effect data carry out calculated thickness, hard polyaminoester spray is carried out using polyurethane spray coating method outside aeroge finally
Foaming is applied, and is realized hard polyaminoester spraying closing insulation, finally metal protection layer is made in polyurethane external, realize high-temperature pipe
Insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229456.0A CN106499901A (en) | 2016-12-27 | 2016-12-27 | Superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee and heat preserving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229456.0A CN106499901A (en) | 2016-12-27 | 2016-12-27 | Superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee and heat preserving method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106499901A true CN106499901A (en) | 2017-03-15 |
Family
ID=58334288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611229456.0A Pending CN106499901A (en) | 2016-12-27 | 2016-12-27 | Superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee and heat preserving method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106499901A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063040A (en) * | 2021-04-15 | 2021-07-02 | 江苏天润管业有限公司 | High-density polyurethane direct-buried heat-insulation pipe and preparation method thereof |
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| JP2014139467A (en) * | 2013-01-21 | 2014-07-31 | Miura Co Ltd | Heat insulation structure |
| CN104251359A (en) * | 2014-09-25 | 2014-12-31 | 哈尔滨朗格斯特节能科技有限公司 | Intelligent prefabricated directly-buried heat-insulating pipe and steel pipe double pipe fitting parallel tee joint and manufacturing method |
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| CN206299937U (en) * | 2016-12-27 | 2017-07-04 | 哈尔滨朗格思特供热装备科技有限公司 | Superhigh temperature prefabricated direct-buried thermal insulation pipe part parallel tee |
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2016
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| JP2014139467A (en) * | 2013-01-21 | 2014-07-31 | Miura Co Ltd | Heat insulation structure |
| CN103438330A (en) * | 2013-08-27 | 2013-12-11 | 浙江创想节能科技有限公司 | Ultrahigh-temperature heat-insulation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063040A (en) * | 2021-04-15 | 2021-07-02 | 江苏天润管业有限公司 | High-density polyurethane direct-buried heat-insulation pipe and preparation method thereof |
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