CN106152558A - Thermal insulation casing - Google Patents
Thermal insulation casing Download PDFInfo
- Publication number
- CN106152558A CN106152558A CN201510137427.0A CN201510137427A CN106152558A CN 106152558 A CN106152558 A CN 106152558A CN 201510137427 A CN201510137427 A CN 201510137427A CN 106152558 A CN106152558 A CN 106152558A
- Authority
- CN
- China
- Prior art keywords
- thermal insulation
- insulation casing
- inner tube
- outer tube
- screen layer
- 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.)
- Pending
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Abstract
The invention discloses a kind of thermal insulation casing.This thermal insulation casing includes: outer tube；Inner tube, said inner tube includes many segment pipes of series connection, is connected with each other with cutting down by expansion joint, and is set to vacuum between said inner tube and described outer tube between every two segment pipes；Being placed in the screen layer between said inner tube and described outer tube, this screen layer has reflexive, for reducing the radiation conductive heat loss of described thermal insulation casing.The thermal insulation casing of the present invention has good high-temperature heat insulation effect, the heat transfer loss of high-temperature pipe is greatly reduced, and production cost is low, it is simple to install.
Description
Technical field
The present invention relates to solar light-heat power-generation systems technology field, true particularly to a kind of novel high-performance
Empty thermal insulation casing.
Background technology
The report of USDOE's 2005 entitled " Solar use is for the demand of basic research ", instead
200 that have reflected the seminar of participation USDOE represent the U.S. and the academia of other various countries, National Laboratory
Room and the conventional wisdom of industry scientist.Reporting according to this, the energy that the present whole world uses is about 4.1
× 1020 joules/year, being equivalent to peak power production is sending out of 13,000,000,000,000 watts (13TW=13x1012W)
Electricity facility continuously (operating coefficient is 100%) generates electricity energy produced by a year.Address prediction, to 2050
Year, the world needs to be equivalent to the continuous generating capacity of 20TW and (is equivalent to photovoltaic or the nothing of 100TW
The photo-thermal power generation equipment of energy storage) the newly added energy.In order to meet this demand, this report analyzes all
Existing energy solution, including Fossil fuel and the nuclear energy of the neutral carbon energy-use carbon-fixation-technology
Source, and regenerative resource-water power, tide and ocean, underground heat, wind energy and solar energy, it was therefore concluded that think
Solar energy is the feasible selection that uniquely can provide to sustainability this demand.Solar energy thermal-power-generating technology by
In having the probability of low cost energy storage, generating of can steadily surfing the Net, and equipment to produce power consumption few, available existing
Having most of energy facilities, the wasting of resources is few, is the most probable new energy scheme that substitutes fossil energy on a large scale.
But, the large-scale application of solar light-heat power-generation depends on the optical and thermal-electricity turn improving system further
Change efficiency, thus realize cost of electricity-generating and tradition electrical network par.In order to more effectively utilize solar energy,
Improve photo-thermal conversion efficiency, it is necessary to reduce energy loss as far as possible.
In solar energy thermal-power-generating technology, it is effectively reduced the pipe in heat-transfer working medium transport process by pipeline heat insulation
Net heat loss is extremely important, and solar-thermal generating system efficiency will be caused lethal effect by pipeline heat insulation poor effect.
Therefore, the pipeline heat insulation of solar light-heat power-generation system becomes the key of whole system, and it directly affects photo-thermal
Electricity transformation efficiency and the economy of cost of electricity-generating.
The pipeline of current existing opto-thermal system mainly uses Conventional insulation or Novel air gel insulation material
It is incubated.Conventional insulation application is relatively broad, and cost is relatively low, but heat insulation effect is poor；Novel air
The heat-insulating property of gel insulating product good 2-3 times than Conventional insulation, but price is the highest；And it is existing
Vacuum Package adiabator (VIP) may not apply to more than 100 DEG C.Therefore, the most not yet occur one
Plant universality, the insulating product that cost performance is higher.
Summary of the invention
It is an object of the invention to provide a kind of novel high-performance vacuum heat-preserving sleeve pipe.There is higher insulation
Performance, more stable insulation quality and lower cost of manufacture.
For solving above-mentioned technical problem, embodiments of the present invention provide a kind of 1. 1 kinds of thermal insulation casings,
It is characterized in that, including:
Outer tube；
Inner tube, said inner tube includes many segment pipes of series connection, passes through expansion joint and can cut down between every two segment pipes
It is connected with each other, and is set to vacuum between said inner tube and described outer tube；And
Being placed in the screen layer between said inner tube and described outer tube, described screen layer has reflexive, is used for dropping
The radiation conductive heat loss of low described thermal insulation casing.
In one preferred embodiment, described screen layer is reflexive thin film.
In one preferred embodiment, described thermal insulation casing includes two segment pipes of series connection.
In one preferred embodiment, the external diameter of outer tube is 50mm～65mm, and wall thickness is 9mm～13mm.
In one preferred embodiment, the external diameter of inner tube is 34mm～40mm, and wall thickness is 11mm～17mm.
In one preferred embodiment, a length of 1800mm～2000mm of thermal insulation casing.
Inner tube can be metal tube or glass tubing.
In one preferred embodiment, every segment pipe of inner tube all can be fixed on described screen layer by the first support,
And described screen layer is fixed on described outer tube by the second support.
In one preferred embodiment, the duct section at inner tube two ends can be connected with described outer tube by reducing.
In one preferred embodiment, the outer surface of outer tube can be provided with screened film and curtain coating.
In one preferred embodiment, screen layer can be that the glass tubing of aluminum film is laid on surface, the poly-of aluminum film is laid on surface
Acid imide plate or aluminium sheet.
In one preferred embodiment, screen layer can be by quantity mask segments identical with the number of tubes forming said inner tube
Composition.
In one preferred embodiment, described screen layer is 1-6 layer.
In one preferred embodiment, described outer tube is transparent shell.
In one preferred embodiment, described outer tube is made up of silicon boron glass.
In one preferred embodiment, by vacuum pumping mouth evacuation between said inner tube and described outer tube, vacuum
Less than 0.05Pa.In another preferred embodiment, vacuum is less than 0.02Pa.In another preferred embodiment, very
Reciprocal of duty cycle is less than 0.01Pa.
In one preferred embodiment, fill and present evaporable and nonevaporable getter in described pipe to maintain described insulation
The vacuum of sleeve pipe.
Compared with prior art, the main distinction and effect thereof are embodiment of the present invention: have good height
Temperature insulation effect, is greatly reduced the heat transfer loss of high-temperature pipe.By selecting conventional, cheap material, simplify,
Efficient production line balance, reduces the product cost of vacuum insulation sleeve pipe.In pipe, vacuum can long term maintenance exist
Reduced levels, so that it is guaranteed that the stablizing of its insulation quality.There is products configuration flexibly, according to the actual requirements,
Produce multiple GB or the vacuum heat-preserving sleeve pipe of special caliber specification, and install simple.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the thermal insulation casing embodiment according to one embodiment of the invention；And
Fig. 2 is the perspective diagram of the thermal insulation casing embodiment of Fig. 1.
Detailed description of the invention
In the following description, in order to make reader be more fully understood that, the application proposes many ins and outs.
But, even if it will be understood by those skilled in the art that and there is no these ins and outs and based on following
The many variations of embodiment and amendment, it is also possible to realize the application each claim technology required for protection
Scheme.
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Embodiment be described in further detail.In figure, same or analogous component uses identical reference
Represent.
See Fig. 1, for the sectional structure schematic diagram of an embodiment of the thermal insulation casing 100 of the present invention.Such as figure
Shown in 1, this thermal insulation casing 100 includes: an outer tube 1, inner tube 2 and screen layer 3, wherein inner tube 2
Including many segment pipes 21,22 (shown in figure two sections) of series connection, by expansion joint 4 between every two segment pipes
It is connected with each other with 5 can be cut down, and is set to vacuum between inner tube 2 and outer tube 1.Should be understood that as required,
Inner tube can include any appropriate number of duct section.Screen layer 3 is placed between inner tube 2 and outer tube 1, this screen
Cover layer 3 and there is reflexive, for reducing the radiation conductive heat loss of thermal insulation casing 100.In this embodiment, screen
Cover layer 3 to be also made up of quantity mask segments identical with the number of tubes forming inner tube 2, shown in figure 2 sections, but
Can also be made up of any appropriate number of mask segments.
The duct section at inner tube 2 two ends is connected with outer tube 1 by reducing and forms sleeve pipe, and this reducing can use phase
With or the glass tubing of different model, at high temperature carry out sealing-in.It addition, this thermal insulation casing can be taken out by vacuum
Mouth (not shown) evacuation, reduces gas conduction loss further, thus improves the heat-insulating property of insulating tube.
Every segment pipe 21,22 of inner tube 2 is all fixed on screen layer 3 by the first support 6.Screen layer 3 is by the
Two supports 7 are fixed on outer tube 1.Screen layer can be 1-6 layer.
Outer tube 1 is glass or metal tube.Screened film and curtain coating can be provided with on the outer surface of outer tube.Preferably
Ground, the external diameter of outer tube is 50mm～65mm, and wall thickness is 9mm～13mm.Inner tube 3 use glass tubing or
Metal tube.It is preferred that the external diameter of inner tube is 34mm～40mm, wall thickness is 11mm～17mm.It is preferred that
A length of 1800mm～2000mm of thermal insulation casing, under this length, inner tube is arranged to multistage can
Manufacturing cost and reliability are higher significantly.
It is preferred that inner tube 3 uses metal or glass material.It is preferred that the vacuum between inner and outer tubes
Select less than 0.05Pa.It is preferred that vacuum is less than 0.02Pa.In another preferred embodiment, vacuum is little
In 0.01Pa.In the present embodiment, vacuum is 10-3Pa.It is preferred that screen layer uses glass tubing or stainless
Steel pipe, coats a floor height reflexive aluminum film at glass tubing or stainless steel pipe surface, or directly uses high property
Can aluminium sheet as screen layer to reduce thermal radiation loss.
Further, the present invention fills getter in vacuum tube, in pipe vacuum can long term maintenance relatively low
Level, so that it is guaranteed that the stablizing of its insulation quality.
The thermal insulation casing of the present invention is equivalent to have certain thickness heat-insulation material, has good insulation
Effect.In the thermal insulation casing of the present invention, inner tube is arranged to multistage can manufacturing cost and reliability significantly
Higher.Further, since be provided with expansion joint between the duct section of composition inner tube, therefore can alleviate or avoid
Under the long-term thermal shock conditions of insulating tube occur deformation or burst phenomenon.
Although by referring to some of the preferred embodiment of the invention, the present invention being shown and retouch
State, but it will be understood by those skilled in the art that and in the form and details it can be made various changing
Become, without departing from the spirit and scope of the present invention.
Claims (10)
1. a thermal insulation casing, it is characterised in that including:
Outer tube；
Inner tube, said inner tube includes many segment pipes of series connection, passes through expansion joint and can cut down between every two segment pipes
It is connected with each other, and is set to vacuum between said inner tube and described outer tube；And
Being placed in the screen layer between said inner tube and described outer tube, described screen layer has reflexive, is used for dropping
The radiation conductive heat loss of low described thermal insulation casing.
Thermal insulation casing the most according to claim 1, it is characterised in that said inner tube be metal tube or
Glass tubing.
Thermal insulation casing the most according to claim 1, it is characterised in that every segment pipe of said inner tube
All be fixed on described screen layer by the first support, and described screen layer by the second support be fixed on described outside
Pipe.
Thermal insulation casing the most according to claim 1, it is characterised in that the pipeline at said inner tube two ends
Section is connected with described outer tube by reducing.
Thermal insulation casing the most according to claim 1, it is characterised in that on the outer surface of described outer tube
It is provided with screened film.
Thermal insulation casing the most according to claim 1, it is characterised in that described screen layer is that surface is applied
If the glass tubing of aluminum film, surface lay polyimide plate or the aluminium sheet of aluminum film.
Thermal insulation casing the most according to claim 1, it is characterised in that described screen layer by quantity with
The number of tubes identical mask segments composition of composition said inner tube.
Thermal insulation casing the most according to claim 1, it is characterised in that described outer tube is transparent shell.
Thermal insulation casing the most according to claim 1, it is characterised in that said inner tube and described outer tube
Between by vacuum pumping mouth evacuation, vacuum is less than 0.05Pa.
Thermal insulation casing the most according to claim 1, it is characterised in that fill and present evaporable in described pipe
With nonevaporable getter to maintain the vacuum of described thermal insulation casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137427.0A CN106152558A (en) | 2015-03-26 | 2015-03-26 | Thermal insulation casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137427.0A CN106152558A (en) | 2015-03-26 | 2015-03-26 | Thermal insulation casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106152558A true CN106152558A (en) | 2016-11-23 |
Family
ID=57339441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510137427.0A Pending CN106152558A (en) | 2015-03-26 | 2015-03-26 | Thermal insulation casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106152558A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684778A (en) * | 2016-12-16 | 2017-05-17 | 无锡市汤成机电配件厂 | Anti-water drop electric wire threading pipe |
| CN110057509A (en) * | 2019-05-20 | 2019-07-26 | 中国矿业大学(北京) | A kind of automatic monitoring insulating tube for dry-hot-rock geothermal exploitation |
| CN112833278A (en) * | 2020-12-30 | 2021-05-25 | 南方科技大学 | Composite structure heat insulation pipe and use method thereof |
-
2015
- 2015-03-26 CN CN201510137427.0A patent/CN106152558A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684778A (en) * | 2016-12-16 | 2017-05-17 | 无锡市汤成机电配件厂 | Anti-water drop electric wire threading pipe |
| CN110057509A (en) * | 2019-05-20 | 2019-07-26 | 中国矿业大学(北京) | A kind of automatic monitoring insulating tube for dry-hot-rock geothermal exploitation |
| CN112833278A (en) * | 2020-12-30 | 2021-05-25 | 南方科技大学 | Composite structure heat insulation pipe and use method thereof |
| CN112833278B (en) * | 2020-12-30 | 2022-11-11 | 南方科技大学 | Composite structure heat insulation pipe and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |
|
| WD01 | Invention patent application deemed withdrawn after publication |