CN103277927A - Unspaced fin type solar heat collecting pipe - Google Patents
Unspaced fin type solar heat collecting pipe Download PDFInfo
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- CN103277927A CN103277927A CN2013101662917A CN201310166291A CN103277927A CN 103277927 A CN103277927 A CN 103277927A CN 2013101662917 A CN2013101662917 A CN 2013101662917A CN 201310166291 A CN201310166291 A CN 201310166291A CN 103277927 A CN103277927 A CN 103277927A
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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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Abstract
The invention discloses an unspaced fin type solar heat collecting pipe. The unspaced fin type solar heat collecting pipe is arranged to be of an integral central sleeve pipe type structure through an aluminum fin extrusion and pulling up technology, and a sleeve pipe type fins and a metal pipe utilize grouting heat conduction fluid matched with an interval whole ring hot rolling process or a mandril metal pipe inner expanding connection process, so that the unspaced connection of aluminum fin sleeve pipes and the metal pipe is achieved, and therefore thermal contact resistance is reduced, and the heat collecting efficiency of the solar heat collecting pipe is improved. A device comprises a vacuum glass pipe, the metal pipe with fins, a pipe end sealing plug and the heat conduction fluid between the fins and the metal pipe, wherein the metal pipe with the fins is arranged in the glass pipe. Through the structural design of the heat conduction fluid, interval whole ring hot rolling and the like, efficient contact heat conduction from a fin metal surface heat collecting coat to the fins and the metal pipe is achieved, the needs of manufacturing intermediate-high temperature media are met, and the applicability and the stability of the unspaced fin type solar heat collecting pipe are guaranteed.
Description
Technical field
The invention discloses a kind of gapless finned solar thermal-collecting tube, relate to solar energy heat utilization field.
Background technology
Under the impact of energy pressure, domestic novel energy solar energy related industry fast development in recent years.Solar water heater has become a kind of the most general apparatus for utilization of solar energy with solar.Now solar energy is as a kind of important renewable energy, and its range of application no longer is confined to the domestic solar water heater, and middle high-temperature-hot-water (working medium) has also begun research and development and has been applied in the technical measures such as organic Rankine circulating generation.
Solar energy heat collection pipe is as the vitals of various solar thermal utilizations, and its thermal efficiency, heat absorption heat-insulating property will directly influence economy and the high efficiency that solar energy utilizes.Solar energy heat collection pipe can be divided into direct replacement type thermal-collecting tube and indirect displaced type thermal-collecting tube at present.The direct replacement type is the isolation effect by the vacuum glass between the inside and outside glass, utilizes the inner bag scribble heat absorbing coating to be heated directly and medium carries out energy replacement, thereby produces the medium of uniform temperature.This kind direct replacement type heat collector mode processing technology is simple, material easily obtains and comparatively cheap, but because its medium temperature that can make is lower, and exist to utilize fully shortcomings such as booster phenomenon easily take place in the interior hot water of thermal-collecting tube, summer, therefore, direct replacement type thermal-collecting tube only limits to domestic solar water heater's use at present.
Improved indirect displaced type thermal-collecting tube is made up of glass tube with vacuum and finned metal heat-conducting pipe.Wherein, finned metal heat-conducting pipe places vacuum pipe inner cavity, and fin and metal tube surface all scribble heat absorbing coating, the metal heat-conducting pipe be heated and with the pipe in medium generation exchange heat.In order to reach good thermal conduction effect, mainly contain following four kinds at present in the industry and implement and processing mode: the one, use rearmounted expensive heat pipe, U-shaped copper pipe in the vacuum heat collection pipe that presets heat pipe, the vacuum tube.In fact, these three kinds of modes all are the metal heat exchanger tubes that adopts copper body and aluminum thermofin to constitute, because metal body and thermofin are that split production, processing are synthetic, thermofin can not contact with body well, increased thermal contact resistance, heat transfer efficiency is not high; Second kind of approach is born in order to address the above problem, be the compound integrated pipe of copper aluminium, though this kind mode can address the above problem preferably owing to a large amount of use expensive copper materials, only be confined to the stronger owner of some purchase volumes and unit, but generalization is not strong; The third approach is traditional fin and body integral structure.But, the specific implementation process surface, because aluminium section bar self-characteristic limitation is more yielding, so structure is comparatively loose, transportation and installation are not too convenient, keep in repair also very inconvenient; The 4th kind is the heat exchanger tube expanding joint method, namely by servicing units such as plugs, make the heat exchanger tube fin stressed evenly, thereby the distortion that is not distorted is combined closely with fin, as " the expanded joint pipe that a kind of heat exchanger is used " (2009.1 Chinese patent application such as Chen Shaokai number: 200910036532.X), but this technical process is slow, and DeGrain during at the stainless steel single tube.
Summary of the invention
The present invention be directed in the finned vacuum heat collection pipe of traditional solar energy, because mounting process is limit, there is fit clearance between aluminous fin sleeve pipe and metal tube, thereby the inefficient problem of the thermal-collecting tube that causes, by charging the version of heat-conducting fluid and the hot rolling of whole circle, provide a kind of compactness rational in infrastructure, good, the comparatively cheap middle high temperature finned solar thermal-collecting tube of while price of Heat-collecting effect.
The present invention is for solving the problems of the technologies described above by the following technical solutions: a kind of gapless finned solar thermal-collecting tube, comprise glass tube with vacuum, finned sleeve pipe, end sealing plug, metal tube, described sleeve pipe is nested with in the described metal tube outside, form cavity between sleeve pipe and the metal tube, charge heat-conducting fluid in the cavity, sleeve pipe is connected with the closed at both ends of metal tube.
Further, also have n place to seal between described sleeve pipe and the metal tube two ends and be connected, the value of n is natural number.
Further, described sleeve pipe is connected with sealing between the metal tube, adopts the sealing connected mode that expands in the hot rolling of whole circle or the metal tube.
Further, described metal tube is U-shaped copper pipe or stainless steel single tube.
Further, the material of described sleeve pipe and fin is aluminium.
Further, described heat-conducting fluid is conduction oil.
The present invention adopts above technical scheme compared with prior art, has following technique effect: realize that aluminous fin contact with no gap between the metal tube, thereby reduce the collecting efficiency of thermal contact resistance increase solar energy heat collection pipe; By the structural design that the circle hot rolling is put in order at heat-conducting fluid, interval, can realize the efficient contact heat conduction of---fin---metal tube by the fin coating for metal surfaces, the demand of producing of satisfied middle high-temperature medium guarantees its applicability and stability.
Description of drawings
Fig. 1 charges the structure principle chart of the finned solar thermal-collecting tube device of heat-conducting fluid for no gap of the present invention.
Fig. 2 is thermal-collecting tube longitudinal profile structure processing schematic diagram.
Fig. 3 is fin processing schematic diagram.
Among the above-mentioned figure: 1, dual-layer vacuum glass pipe, 2, metal tube, 3, the end sealing plug, 4, fin, 5, the aluminum sleeve pipe, 6, the whole circle hot rolling of fin end, 7, the middle part sets up the hot rolling of whole circle separately, 8, heat-conducting fluid, 9, medium in the pipe.
The specific embodiment
Below in conjunction with accompanying drawing, by the specific embodiment the present invention is further described.
A kind of compact conformation, the high-efficiency fin formula solar energy heat collection pipe that Heat-collecting effect is good, by dual-layer vacuum glass pipe 1, the metal tube 2 that places the band fin 4 in the glass tube, end sealing plug 3, and the heat-conducting fluid 8 of 2 of fin 4 and metal tubes etc. is partly formed.Device is by the heat-conducting fluid 8 in fin 4, the gap, the conduction of the heat between the metal tube 2, and the connected mode between the thermal-collecting tube is obtained middle high-temperature medium 9.Processing aluminous fin 4 plates are sleeve pipe 5 forms, setting-in metal tube 2 in the sleeve pipe charges heat-conducting fluid 8 in the gap between aluminum sleeve pipe 5 and the metal tube 2, and eyelet thimble sets up the hot rolling 7 of whole circle separately in contact portion end hot rolling 6 and centre, assurance face contact extruding 6,7 place's aluminum sleeve pipes 5 contact with 2 of metal tubes.
Processing technology order from heat-conducting fluid 8 and the hot rolling 6,7 of whole circle can charge heat-conducting fluid 8 earlier, is putting in order circle hot rolling 6,7, also can finish the hot rolling 6,7 of whole circle earlier, and charging of heat-conducting fluid 8 carried out in segmentation again.
Form and material from metal tube 2 can adopt the stainless steel single tube, also can adopt the U-shaped pipe of copper, perhaps at actual conditions material and the form of metal tube are carried out the special construction design.
Aluminum fin sleeve pipe 5 forms from required can adopt two aluminous fin assembly units, also can adopt a slice to be overall shaped into the semiclossed sleeve pipe.When adopting two fin assembly units, two fin contact portions welding or adopt other modes closely to contact.Aluminum fin proportion is less, and processing cost is low, therefore can draw high processing technology by extruding and obtain monolithic construction, thereby reduce production costs, and guarantee the realization of heat-conducting fluid and the hot rolling of whole circle, is fit to produce in enormous quantities.
From the technology of gapless structure, can adopt heat-conducting fluid and whole circle hot rolling structure, wherein heat-conducting fluid should have good heat-conducting, as conduction oil; Also can adopt expanding joint process in the plug metal tube.
Be primarily aimed at wherein a kind of employing stainless steel metal single tube below, two aluminous fin assembly unit sleeve pipes, metal tube is inlaid in the sleeve pipe, and the gap of fin sleeve pipe and metal tube charges the thermal-collecting tube form of heat-conducting fluid, by reference to the accompanying drawings concrete processing and embodiment is described further.
Accompanying drawing 1 is for charging the structure principle chart of the finned solar thermal-collecting tube device of heat-conducting fluid in the gap.Vacuum double glass 1 plays insulation effect, sunshine passes glass 1, absorbed by the heat absorbing coating on aluminum fin 4 and metal tube 2 outer walls, heat was thrown the hot rolling 6 of whole circle by heat absorbing coating, 7 and the gap in heat-conducting fluid 8 pass to metal tube 2, metal tube get hot and with pipe in medium 9 heat exchange of flowing, finally produce required middle high-temperature medium.
Accompanying drawing 2, accompanying drawing 3 are respectively metal tube and aluminum fin structure processing schematic diagram.Two aluminous fins 4 are assemblied into the cylinder-shaped sleeve 5 of both ends open, metal tube 2 is inlaid in the aluminum sleeve pipe 5, gap between fin 4 and the metal tube 2 by the processing of sleeve pipe 5 ends and midfeather whole circle hot rolling 6,7 and all the other gaps in heat-conducting fluid 8 encapsulation that charge finish.
Claims (6)
1. gapless finned solar thermal-collecting tube, the sleeve pipe (5), end sealing plug (3), the metal tube (2) that comprise glass tube with vacuum (1), band fin (4), it is characterized in that: described sleeve pipe (5) is nested with in described metal tube (2) outside, form cavity between sleeve pipe (5) and the metal tube (2), charge heat-conducting fluid (8) in the cavity, sleeve pipe (5) is connected with the closed at both ends of metal tube (2).
2. a kind of gapless finned solar thermal-collecting tube as claimed in claim 1 is characterized in that: also have n place to seal between described sleeve pipe (5) and metal tube (2) two ends and be connected, the value of n is natural number.
3. a kind of gapless finned solar thermal-collecting tube as claimed in claim 1 or 2 is characterized in that: described sleeve pipe (5) is connected with sealing between the metal tube (2), adopts the sealing connected mode that expands in the hot rolling of whole circle or the metal tube.
4. a kind of gapless finned solar thermal-collecting tube as claimed in claim 1, it is characterized in that: described metal tube (2) is U-shaped copper pipe or stainless steel single tube.
5. a kind of gapless finned solar thermal-collecting tube as claimed in claim 1, it is characterized in that: the material of described sleeve pipe and fin is aluminium.
6. a kind of gapless finned solar thermal-collecting tube as claimed in claim 1, it is characterized in that: described heat-conducting fluid is conduction oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310166291.7A CN103277927B (en) | 2013-05-08 | 2013-05-08 | Unspaced fin type solar heat collecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310166291.7A CN103277927B (en) | 2013-05-08 | 2013-05-08 | Unspaced fin type solar heat collecting pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103277927A true CN103277927A (en) | 2013-09-04 |
| CN103277927B CN103277927B (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310166291.7A Expired - Fee Related CN103277927B (en) | 2013-05-08 | 2013-05-08 | Unspaced fin type solar heat collecting pipe |
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| CN (1) | CN103277927B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766156A (en) * | 2016-12-12 | 2017-05-31 | 宋振明 | Efficient electric heater and manufacture method |
| CN108801030A (en) * | 2018-07-12 | 2018-11-13 | 兰州真空设备有限责任公司 | Aluminium section bar is heat sink |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002243282A (en) * | 2001-02-20 | 2002-08-28 | Hitachi Chem Co Ltd | Solar collector |
| CN101086393A (en) * | 2006-06-09 | 2007-12-12 | 李建民 | Heat pipe solar vacuum heat-collecting pipe and its uses |
| CN101749871A (en) * | 2008-12-11 | 2010-06-23 | 北京环能海臣科技有限公司 | Glass evacuated collector tube with built-in compounded metal profile heat tube |
| CN201897316U (en) * | 2010-12-07 | 2011-07-13 | 周建荣 | Heat exchanging device for hot water machine |
| CN203336859U (en) * | 2013-05-08 | 2013-12-11 | 南京溧马新能源科技有限公司 | Zero-clearance fin type solar heat collection tube |
-
2013
- 2013-05-08 CN CN201310166291.7A patent/CN103277927B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002243282A (en) * | 2001-02-20 | 2002-08-28 | Hitachi Chem Co Ltd | Solar collector |
| CN101086393A (en) * | 2006-06-09 | 2007-12-12 | 李建民 | Heat pipe solar vacuum heat-collecting pipe and its uses |
| CN101749871A (en) * | 2008-12-11 | 2010-06-23 | 北京环能海臣科技有限公司 | Glass evacuated collector tube with built-in compounded metal profile heat tube |
| CN201897316U (en) * | 2010-12-07 | 2011-07-13 | 周建荣 | Heat exchanging device for hot water machine |
| CN203336859U (en) * | 2013-05-08 | 2013-12-11 | 南京溧马新能源科技有限公司 | Zero-clearance fin type solar heat collection tube |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766156A (en) * | 2016-12-12 | 2017-05-31 | 宋振明 | Efficient electric heater and manufacture method |
| CN108801030A (en) * | 2018-07-12 | 2018-11-13 | 兰州真空设备有限责任公司 | Aluminium section bar is heat sink |
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| Publication number | Publication date |
|---|---|
| CN103277927B (en) | 2015-02-04 |
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