CN100543379C - Hot pipe type vacuum heat collection pipe - Google Patents
Hot pipe type vacuum heat collection pipe Download PDFInfo
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- CN100543379C CN100543379C CNB2008100196420A CN200810019642A CN100543379C CN 100543379 C CN100543379 C CN 100543379C CN B2008100196420 A CNB2008100196420 A CN B2008100196420A CN 200810019642 A CN200810019642 A CN 200810019642A CN 100543379 C CN100543379 C CN 100543379C
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- pipe
- heat pipe
- type vacuum
- heat
- hot
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/40—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
- F24S10/45—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
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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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Insulation (AREA)
Abstract
本发明属于太阳能领域，公开了一种热管式真空集热管，包括表面设有太阳能吸收层的热管，所述热管外设有玻璃管，所述玻璃管一端开口，所述玻璃管与热管之间为真空层，所述真空层间可以设有吸气剂以更好地保证真空层的真空度，所述热管的上部设有冷却套管，所述冷却套管上设有进液口和出液口，所述热管的中部通过封接件与玻璃管口密封连接，在所述封接处的外部设有防护罩，所述防护罩的一端与玻璃管配合，另一端与热管紧密配合，所述热管下部为三层复合结构，底层为复合材料层，复合材料层外设有金属层，在金属层外为太阳能吸收层。复合材料层可以选择碳纤维复合材料或者玻璃纤维复合材料制造，和工质的相容性提高，不易产生不凝性气体。
The invention belongs to the field of solar energy, and discloses a heat pipe type vacuum heat collecting pipe, which includes a heat pipe with a solar absorbing layer on the surface, a glass tube outside the heat pipe, one end of the glass pipe is open, and a gap between the glass pipe and the heat pipe It is a vacuum layer, and a getter can be provided between the vacuum layers to better ensure the vacuum degree of the vacuum layer. The top of the heat pipe is provided with a cooling jacket, and the cooling jacket is provided with a liquid inlet and an outlet. Liquid port, the middle part of the heat pipe is sealed and connected with the glass nozzle through a seal, and a protective cover is provided outside the seal, one end of the protective cover is matched with the glass tube, and the other end is closely matched with the heat pipe. The lower part of the heat pipe is a three-layer composite structure, the bottom layer is a composite material layer, a metal layer is arranged outside the composite material layer, and a solar energy absorbing layer is arranged outside the metal layer. The composite material layer can be made of carbon fiber composite material or glass fiber composite material, and the compatibility with working fluid is improved, and non-condensable gas is not easily generated.
Description
Technical field
The present invention relates to a kind of solar energy heat collection pipe, particularly a kind of hot pipe type vacuum heat collection pipe.
Background technology
Vacuum heat collection pipe is a kind of core devices of solar energy heat utilization field, and its major function is to be heat energy with conversion of solar energy.Heat pipe is a kind of high-performance heat transfer components, has characteristics such as efficient height, security performance be good.Hot pipe technique and vacuum heat collection pipe are organically combined, make the heat pipe-type metal-glass vaccum heat-collecting tube that can be applicable to medium and high temperature heat utilization place, can improve vacuum heat collection pipe and conduct heat and security performance.The hot pipe type vacuum heat collection pipe of Shi Yonging in the market, thermotube shell is a metal, adopts kovar alloy to be connected between glass tube and metal heat pipe.This thermal-collecting tube structure has solved the difference problem of the coefficient of expansion, existing in practice certain application.
Retrieval is found, application number is that 01141781.1 Chinese patent application discloses a kind of heat pipe solar vacuum heat-collecting pipe, its end cap can be sleeved on above the all-glass vacuum tube, also can be plugged in the vacuum tube, stick with glue the agent sealing again, end cap top has the tail pipe can exhaust and fluid injection, and the vacuum casing pack is with phase-change working substance.The patent No. is that the Chinese patent of ZL 00101464.1 discloses a kind of vacuum heat collection pipe, be characterized in being tightly connected by the endoporus of joint sleeve lower step and the oral area of all-glass vacuum thermal-collecting tube, the lower end oral area of the endoporus of its upper step and long metal tube is tightly connected.In addition, application number is that 02289924.3 Chinese utility model patent discloses a kind of heat-pipe vacuum heat collecting pipe that can cut down sealing ring that is provided with, it is the cut down sealing ring that is provided with a band crimp between end cap and the glass tube flange cutting down, can cut down the sealing ring crimp and be pressed into and be packaged in the glass tube flange, can cut down end cap and can cut down sealing ring and directly carry out welded seal.More than about the improvement of the sealing structure of heat-pipe vacuum heat collecting pipe, improving air-tightness in varying degrees, avoid the generation chronic leakage, prolonged the service life of heat collector tube pipe, can satisfy the middle low temperature use occasion of daily solar water heater and so on substantially.
But facts have proved that the sealing-in between above-mentioned metal and the glass is difficulty comparatively, even adopt the kovar alloy transition sealing, the time long or be heated after still easily leak gas even break.In addition, easily produce incoagulable gas in the metal heat pipe, cause performance to descend the lost of life.
Summary of the invention
In order to solve the metal that prior art exists and the sealing-in difficulty of glass, easily produce the shortcoming of incoagulable gas in the pipe, the present invention proposes a kind of hot pipe type vacuum heat collection pipe, adopting composite is the heat pipe of housing, easier and glass sealing is difficult for producing incoagulable gas.
Technical scheme of the present invention is a kind of hot pipe type vacuum heat collection pipe, comprise that the surface is provided with the heat pipe of solar absorbing layer, described heat pipe is provided with glass tube outward, described glass tube one end opening, it between described glass tube and the heat pipe vacuum layer, can be provided with getter between described vacuum layer to guarantee the vacuum of vacuum layer better, the top of described heat pipe is provided with cooling collar, described cooling collar is provided with inlet and liquid outlet, the middle part of described heat pipe is tightly connected by the closure and the glass mouth of pipe, outside in described sealing-in place is provided with protective cover, one end of described protective cover cooperates with glass tube, the other end and heat pipe closely cooperate, and described heat pipe bottom is that composite is made, the outside is coated with the pipe of metal level, applies solar absorbing layer outside metal level.Composite can be selected carbon fibre composite or glass fiber compound material manufacturing.Described metal level can adopt direct in the heat pipe copper coating of composite manufacturing or the mode of aluminizing, and then at the copper that is plated, carbon steel, stainless steel or aluminium surface applied solar absorbing layer.The compactness of the composite material tube of handling like this improves greatly, and the space of metallic in can well filled composite materials can better guarantee the vacuum of pipe.And composite make heat pipe, the compatibility of the working medium in composite and the pipe improves, and is difficult for producing incoagulable gas in heat pipe.Described hot pipe type vacuum heat collection pipe; self-centering can also be housed in described heat pipe bottom support,, can eliminate the stress that thermal deformation difference produces by the supplemental support effect that self-centering is supported; required stress relieve protective effect is played in sealing-in place, prolonged the life-span of thermal-collecting tube.Described hot pipe type vacuum heat collection pipe, on described heat pipe, can also be provided with fin, fin is provided with solar absorbing layer, fin can be yi word pattern, cross or screw type, the fin that has the surface-coated solar energy absorbing coating in the heat pipe bottom, can under the situation that does not increase overall volume, enlarge markedly endotherm area, improve heat absorption efficiency.
Beneficial effect of the present invention is: 1. be made of composite owing to heat pipe, heat pipe is to adopt composite will be easy to many with the sealing-in that the sealing-in mode between the glass is compared original metal and glass with sealing-in between the glass tube, sealing effectiveness also will be good many, more can guarantee the vacuum of thermal-collecting tube.
2. cost is low, easily machine-shaping.The present invention adopts the case material of composite as heat pipe, and it is lower to compare the metal cost; Composite is that the heat pipe of housing and the compatibility of the working medium in the pipe improve, and is difficult for producing incoagulable gas and life-span of influencing heat pipe, and easilier is processed into needed shape.
3. outside composite, be provided with the compactness that metal level has improved the composite tube-surface greatly, can better guarantee vacuum.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the utility model embodiment 1.
1 is heat pipe, the 2nd among the figure, cooling collar, 3 cooling mediums, the 4th, flange, the 5th, closure, the 6th, glass tube, the 7th, vacuum layer, the 8th, solar absorbing layer, the 9th, self-centering support, the 10th, protective cover, the 11st, fin.
Fig. 2 is the structural representation of the embodiment of the invention 2.
Fig. 3 is that the A of Fig. 1 is to partial view.
Fig. 4 is the B-B cutaway view of Fig. 1.
Fig. 5 is the structural representation of the embodiment of the invention 3.
Fig. 6 is the structural representation of the embodiment of the invention 4.
Fig. 7 is the C-C cutaway view of Fig. 5.
Fig. 8 is the structural representation of the embodiment of the invention 5.
Fig. 9 is the structural representation of the embodiment of the invention 6.
Figure 10 is the E-E cutaway view of Fig. 9.
The specific embodiment
The hot pipe type vacuum heat collection pipe of present embodiment is provided with the heat pipe 1 of middle and lower part surface-coated solar absorbing layer 8 as shown in Figure 1 in the glass tube 6 of end sealing.The top of this heat pipe 1 is provided with cooling collar 2, and cooling collar 2 is provided with inlet and liquid outlet.Heat pipe 1 middle part is by closure 5 and glass tube 6 seal.Form vacuum layer 7 between glass tube 6 and the heat pipe 1, can be placed with getter to guarantee vacuum better in the vacuum layer 7.Going up of the heat pipe section fixed blade guard 10 of closure 5 tops coiled; glass tube 6 cooperates with the protective cover lower wall; the lower wall periphery of protective cover 10 can be shaped on to upper overturning; this flange and the welding of last dish are fixing; constitute protective cover; cover the seam that is connected of glass tube and heat pipe,, prolong the service life of thermal-collecting tube so that better protection connects seam.In order to eliminate the stress of thermal deformation difference to sealing-in place, the bottom of heat pipe 1 can also be equipped with self-centering and be supported 9, as shown in Figure 3 and Figure 4, plays the supplemental support effect of heat pipe in the glass tube centralized positioning that make.It can be to be made of circular arc supporting seat, elasticity support sheet, the head of conflicting that this self-centering supports 9, the arc radius of circular arc supporting seat and heat pipe 1 external diameter match, be fixed on outside the heat pipe 1, elasticity support sheet is by stretching to both sides on the circular arc supporting seat, and the conflict head by the end is resisted against location in the glass tube 6.During assembling, two one group of support member is separately fixed at heat pipe 1 bilateral symmetry place.Heat pipe 1 can be made with carbon fiber or glass fiber compound material.The easier machine-shaping of carbon fiber or glass fibre, cost is low, and the heat pipe of composite manufacturing be difficult for to produce incoagulable gas and influences life-span of heat pipe; Material seals such as easier and glass.In order to guarantee the vacuum of pipe, can plate layer of metal copper, carbon steel, stainless steel or aluminium again in the outside of composite pipe, the compactness of pipe is improved in the space that metallic can well the filled composite materials tube-surface like this, guarantees the vacuum of pipe.
During work, sunshine sees through glass tube 6 and vacuum layer 7, be radiated on the bringing-up section of the heat pipe 1 that scribbles solar absorbing layer 8, solar absorbing layer 8 is coated in the middle and lower part of heat pipe 1, after sunshine is absorbed by solar absorbing layer 8 surfaces, heating heat pipe 1 is managed interior working medium, rises to the cooling section of heat pipe 1 after the intraductal working medium vaporization, with the cooling medium 3 in the cooling collar 2 on heat transferred heat pipe 1 top.After the steam condensation, the bringing-up section of getting back to heat pipe 1 recycles again in the cooling section of heat pipe 1.Thereby realized changing into the process of heat energy, reached and utilized solar energy to prepare hot water, hot gas, purposes such as generation steam, high-temperature gas generate electricity, desalinization, heat utilization by solar energy.
The hot pipe type vacuum heat collection pipe of present embodiment as shown in Figure 2, basic identical with the structure of embodiment 1, difference is that the middle part of heat pipe 1 directly is inserted in the centre bore of flange 4 and seals that the centre bore of this flange 4 and heat pipe 1 are tightly connected, and are tightly connected by closure 5 and glass tube.So more help protecting sealing-in place, and cost is more economical.
The hot pipe type vacuum heat collection pipe of present embodiment as shown in Figure 5, basic identical with the structure of embodiment 1, difference is that the heat pipe bottom also is provided with fin 11, fin 11 surface-coated have solar absorbing layer 8, the cross section of fin can be a cross fin as shown in Figure 7, also can be the yi word pattern fin, fin the better effective absorbing area that increases solar energy is set, more help absorbing solar energy, can effectively reduce the diameter of heat pipe 1, alleviate the weight of whole thermal-collecting tube, be easier to install.
The composite material hot pipe formula vacuum heat collection pipe of present embodiment as shown in Figure 6, and is basic identical with the structure of embodiment 2, and difference is that cross section fin 11 is as shown in Figure 7 arranged at the heat pipe bottom, therefore more helps absorbing sunshine.
The composite material hot pipe formula vacuum heat collection pipe of present embodiment as shown in Figure 8, and is basic identical with the structure of embodiment 2, and difference is that cross section spiral fins 11 is as shown in figure 10 arranged at the heat pipe bottom, therefore can absorb more sunshines.
The composite material hot pipe formula vacuum heat collection pipe of present embodiment as shown in Figure 9, and is basic identical with the structure of embodiment 1, and difference is that cross section helical fin 11 is as shown in figure 10 arranged at the heat pipe bottom, therefore can absorb more sunshines.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (9)
1. hot pipe type vacuum heat collection pipe, comprise that the surface is provided with the heat pipe of solar absorbing layer, described heat pipe is provided with glass tube outward, described glass tube one end opening, it between described glass tube and the heat pipe vacuum layer, the top of described heat pipe is provided with cooling collar, described cooling collar is provided with inlet and liquid outlet, the middle part of described heat pipe is tightly connected by the closure and the glass mouth of pipe, outside in described sealing-in place is provided with protective cover, and an end of described protective cover cooperates with glass tube, and the other end and heat pipe closely cooperate, it is characterized in that: described heat pipe bottom is that composite is made, the outside is coated with the pipe of metal level, applies solar absorbing layer outside metal level.
2. hot pipe type vacuum heat collection pipe as claimed in claim 1 is characterized in that described composite is a carbon fibre composite.
3. hot pipe type vacuum heat collection pipe as claimed in claim 1 is characterized in that described composite is a glass fiber compound material.
4. hot pipe type vacuum heat collection pipe as claimed in claim 1 is characterized in that described metal level is copper, aluminium, carbon steel or stainless steel.
5. hot pipe type vacuum heat collection pipe as claimed in claim 1 is characterized in that in described heat pipe bottom self-centering being housed supports.
6. hot pipe type vacuum heat collection pipe as claimed in claim 1 is characterized in that also being provided with fin on described heat pipe, and fin is provided with solar absorbing layer.
7. hot pipe type vacuum heat collection pipe as claimed in claim 6 is characterized in that described fin is a screw type.
8. hot pipe type vacuum heat collection pipe as claimed in claim 6 is characterized in that described fin is a yi word pattern.
9. hot pipe type vacuum heat collection pipe as claimed in claim 6 is characterized in that described fin is cross.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100196420A CN100543379C (en) | 2008-03-11 | 2008-03-11 | Hot pipe type vacuum heat collection pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100196420A CN100543379C (en) | 2008-03-11 | 2008-03-11 | Hot pipe type vacuum heat collection pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101256034A CN101256034A (en) | 2008-09-03 |
| CN100543379C true CN100543379C (en) | 2009-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100196420A Expired - Fee Related CN100543379C (en) | 2008-03-11 | 2008-03-11 | Hot pipe type vacuum heat collection pipe |
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| Country | Link |
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| CN (1) | CN100543379C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2486427B (en) * | 2010-12-14 | 2013-08-07 | Converteam Technology Ltd | A layered material for a vacuum chamber |
| CN102401486A (en) * | 2011-09-01 | 2012-04-04 | 上海博阳新能源科技有限公司 | Vacuum tube heat pipe type flat plate heat collector |
| CN106196638B (en) * | 2016-08-25 | 2018-07-03 | 浙江家得乐太阳能有限公司 | A kind of high temperature glass metal vacuum tube solar heating element |
| CN108168110A (en) * | 2017-12-26 | 2018-06-15 | 河南百年融熥实业有限公司 | A kind of spiral heat pipe Synergistic type solar energy heat collection pipe |
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2008
- 2008-03-11 CN CNB2008100196420A patent/CN100543379C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101256034A (en) | 2008-09-03 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090923 Termination date: 20120311 |