CN102003817B - Method and device capable of controlling heat radiation of vacuum heat collection component through cover glass tube - Google Patents
Method and device capable of controlling heat radiation of vacuum heat collection component through cover glass tube Download PDFInfo
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- CN102003817B CN102003817B CN 200910195101 CN200910195101A CN102003817B CN 102003817 B CN102003817 B CN 102003817B CN 200910195101 CN200910195101 CN 200910195101 CN 200910195101 A CN200910195101 A CN 200910195101A CN 102003817 B CN102003817 B CN 102003817B
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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
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Abstract
The invention relates to a method capable of controlling the heat radiation of a vacuum heat collection component through a cover glass tube, which comprises the steps that the wide open protection is carried out on a heat collection component by arranging a channel capable of controlling the heat transfer between the heat absorption body of the heat collection component and the cover glass tube. The vacuum heat collection component capable of controlling the heat radiation of the cover glass tube manufactured according to the method is characterized by comprising the channel capable of controlling the heat transfer arranged between the heat absorption body of the heat collection component and the cover glass tube; and the channel capable of controlling the heat transfer comprises a movable heat power transfer piece, a heat transduction driving piece and a heat power driving piece connected with the low heat resistance of the absorption body or comprises a movable heat transfer piece made of a paramagnetic material and a transfer magnetic rank. The invention has the advantages that the channel capable of controlling the heat transfer is arranged in a vacuum heat insulating layer and does not change the use habit of the traditional heat collection component; the detection, the comparison and the execution of a heat collection control system are combined to an integrate by adopting the heat power driving piece; the external power resource is not required to be supplied; the structure is compact; the operation is reliable; and the driving piece is arranged outside the heat collection piece so as to conveniently adjust the operating point and carry out the remote control. The combined figure shows 5 embodiments.
Description
Technical field
The present invention relates to method and the device of capable of controlling heat radiation of vacuum heat collection component through cover glass tube.
Background technology
Along with the abundant expansion of solar thermal utilization product industrial practice, need to have the solar energy vacuum heat collecting element of empty sun protection function.
Summary of the invention
The objective of the invention is to provide method and the device of capable of controlling heat radiation of vacuum heat collection component through cover glass tube.
The present invention solves the method that its technical problem is taked: by between vacuum heat collection element absorber and cover glass-tube, controlled heat transfer path being set, vacuum heat collection element is carried out empty sun protection; Controlled heat transfer path is made of actuator and the movable heat transfer piece that is placed in the cover glass-tube; Described actuator and described movable heat transfer piece are in transmission connection; Described actuator driving activity heat transfer piece changes the heat transfer state of controlled heat transfer path, realizes the controllable heat dissipation of vacuum heat collection element.
The present invention realizes that said method solves one of technical scheme that its technical problem takes: by between vacuum heat collection element absorber and cover glass-tube, controlled heat transfer path being set, consists of one by covering the vacuum heat collection element of glass-tube controllable heat dissipation.Described controlled heat transfer path is made of actuator and the movable heat transfer piece that is placed in the cover glass-tube.Described actuator is the thermodynamic-driven part that is connected with the absorber low thermal resistance; Described thermodynamic-driven part and described movable heat transfer piece are in transmission connection.
The present invention realizes that said method solves two of technical scheme that its technical problem takes: by between vacuum heat collection element absorber and cover glass-tube, controlled heat transfer path being set, consists of one by covering the vacuum heat collection element of glass-tube controllable heat dissipation.Described controlled heat transfer path is made of actuator and the movable heat transfer piece that is placed in the cover glass-tube.Described actuator is to be placed in the outer transmission magnetic row of cover glass-tube, is provided with a plurality of magnetic patch on described transmission magnetic row; The movable heat transfer piece of described movable heat transfer piece for adopting paramagnetic material to make; A plurality of magnetic patch on described transmission magnetic row be connected the movable heat transfer pieces of a plurality of paramagnetic materials and connect by magnetic drives; Described transmission magnetic row is driven by the mode such as electronic, pneumatic.
Can also make that described thermodynamic-driven part is bimetal leaf thermodynamic-driven part; The L-type activity heat transfer piece that described movable heat transfer piece is in transmission connection for the movable end with described bimetal leaf thermodynamic-driven part.
Can also make that described actuator is the bimetal leaf thermodynamic-driven part that doubles as movable heat transfer piece.
Can also make that described actuator is electromagnet.
Can also make that described actuator is a bimetal leaf thermodynamic-driven part; Described movable heat transfer piece is the transmission magnetic row who is placed in the cover glass-tube; Described bimetal leaf thermodynamic-driven part and transmission magnetic row are in transmission connection.
Can also make that described vacuum heat collection element is the metal heat pipe vacuum heat collection pipe; Be provided with some inclined-planes slideway on the tube plate absorber of described metal heat pipe vacuum heat collection pipe.And make that described movable heat transfer piece is V-type activity heat transfer piece, and described V-type activity heat transfer piece is tied and can moves back and forth along described inclined-plane slideway, and described V-type activity heat transfer piece is connected with inner magnet by drive link.
Can also make described movable heat transfer piece comprise several transmission magnetic row and inner magnet, described inner magnet is in transmission connection with described transmission magnetic row, is containing removable outer magnet from 50 millimeters of described inner magnets outside with interior cover glass-tube.
Beneficial effect of the present invention comprises: controlled heat transfer path is placed in vacuum heat-insulating layer and does not change having instructions for use and the custom of heat collecting element now.Adopt the thermodynamic-driven part can integrate the testing, comparison and implementation link of temperature control system and need not the extra power supply, compact conformation, reliable operation.Actuator is placed in heat collecting element and facilitates the operating point of adjusting the empty sun protection system outward, can also carry out remote control.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the empty sun protection all-glass heat pipe vacuum collector tube structural representation of a thermodynamic-driven.
Fig. 2 is the empty sun protection heat accumulating type vacuum heat collecting component structural representation of an external driving.
Fig. 3 is the empty sun protection vacuum heat collection element structural representation that an external electromagnetic drives.
Fig. 4 is the empty sun protection heat accumulating type vacuum heat collecting component structural representation of an adjustable thermodynamic-driven in operating point.
Fig. 5 is the empty sun protection heat accumulating type vacuum heat collecting component structural representation of another adjustable thermodynamic-driven in operating point.
1. absorbers in figure; 2. cover glass-tube; 3. movable heat transfer piece; 4. bimetal leaf thermodynamic-driven part; 5. pad; 6. transmission magnetic is arranged; 7. magnetic patch; 8. heat storage; 9. heat exchanger; 10. slideway; 11. drive link; 12. inner magnet; 13. electromagnet; 14. controller; 15. cold junction; 16. outer magnet; 17. adjusting screw mandrel; 18. heat transfer piece; 19. necking segment; 20. insulation.
The specific embodiment
Fig. 1 embodiment arranges movable heat transfer piece 3 and is connected controlled heat transfer path of a bimetal leaf thermodynamic-driven part that is connected with absorber 1 low thermal resistance 4 compositions between absorber 1 and cover glass-tube 2.The thermodynamic-driven part utilizes the heat energy acting, comprises bimetal leaf, memorial alloy and bellows (claiming again flexible member) actuator.
In Fig. 1, each is connected bimetal leaf thermodynamic-driven part 4 two ends with two L-type activity heat transfer pieces 3.Be lined with pad 5 between movable heat transfer piece 3 and absorber 1.Bimetal leaf thermodynamic-driven part 4 and pad 5 available metal silks or jump ring are fixed on absorber 1.
Sunlight shines on absorber 1 through cover glass-tube 2 and becomes heat energy.During normal thermal-arrest/empty sun protection; state such as the dotted line/solid line of bimetal leaf thermodynamic-driven part 4 and movable heat transfer piece 3 show: bimetal leaf thermodynamic-driven part 4 is bending/straightened condition makes movable heat transfer piece 3 break away from/contact cover glass-tube 2, at this moment is in high/low thermal resistance state between absorber 1 and cover glass-tube 2.
During Fig. 1 embodiment empty sun protection, the heat energy that distributes by covering glass-tube 2
Q=K×S×Δ℃ ……
Formula
In, K is heat transfer coefficient.During wind speed 3 meter per second, the K value got for 20 Qian Ka/㎡/times.S is the heat-dissipating thing body surface area; To 1.8 meters Ф 58 thermal-collecting tubes, every group of heat radiation point area got 0.007 ㎡.Δ ℃ is the poor of heat-dissipating thing surface temperature and environment temperature.When 105 ℃ of 50 ℃ of environment temperatures, empty sun protection temperature, Δ ℃ is got 40 ℃ (whole radiating surface mean values).With K, S and Δ ℃ substitution formula
, get Q=5.6 kilocalorie/time.Usually need many groups activity heat transfer piece to carry out empty sun protection.
Employing activity heat transfer piece has individual small inclination and the design of adopting elasticity activity heat transfer piece with the contact-making surface of cover glass-tube, and heat transfer area is directly proportional to the driving force of actuator to movable heat transfer piece.The empty sun protection better effects if.
In Fig. 1 embodiment, can omission activity heat transfer piece and double as movable heat transfer piece with bimetal leaf thermodynamic-driven part 4 and form controlled heat transfer path.At this moment, bimetal leaf thermodynamic-driven part 4 should be designed to be heated upwarp.
Fig. 2 embodiment with the movable heat transfer piece 3 of some employing paramagnetic materials manufacturing, a transmission magnetic row 6 who is placed in outside cover glass-tube 2, forms a controlled heat transfer path.Transmission magnetic row 6 is tied and can does reciprocating linear motion along its axial line, is provided with a plurality of magnetic patch 7 on it and is used for driving simultaneously the movable heat transfer piece 3 in many places.
Sunlight shines on absorber 1 through cover glass-tube 2 and becomes heat energy, makes heat storage 8 temperature increase.Heat energy can take out by heat exchanger 9.Need/when not needing empty sun protection; adopt the mode such as electronic, pneumatic to make transmission magnetic row 6 move to right/move to left to drive each magnetic patch 7 close/away from each movable heat transfer piece 3 and the free end of movable heat transfer piece 3 is sucted stick up/reset and saggingly contact/break away from cover glass-tube 2, transmission magnetic arranges that on 6, each magnetic patch 7 and movable heat transfer piece 3 are in solid line/dotted line position in figure.Be in low/high thermal resistance state between absorber 1 and cover glass-tube 2.
Fig. 3 embodiment in cover glass-tube 2, is provided with some inclined-planes slideway 10 on metal heat pipe vacuum heat collection pipe tube plate absorber 1.V-type activity heat transfer piece 3 is tied and can moves back and forth along slideway 10, and is connected with inner magnet 12 by drive link 11.External actuator electromagnet 13 and the micro controller 14 of V-type activity heat transfer piece 3, drive link 11, inner magnet 12, close inner magnet 12 form a controlled heat transfer path together.
Sunlight shines through cover glass-tube 2 and becomes heat energy on absorber 1 by 15 outputs of heat pipe cold junction.During normal thermal-arrest/empty sun protection, controller 14 make associated electrical magnet 13 dead electricity/electric, drive link 11 right/left are moved, and make each V-type activity heat transfer piece 3 move and cover glass-tube 2 and contact/break away from as dotted line/solid line and show along slideway 10.Be in high/low thermal resistance state between absorber 1 and cover glass-tube 2.
Fig. 4 embodiment, the controlled heat transfer path of the movable heat transfer piece 3 of paramagnetic material and a thermodynamic-driven of transmission magnetic row 6 compositions that is connected with bimetal leaf thermodynamic-driven part 4.Bimetal leaf thermodynamic-driven part 4 is connected with absorber 1 low thermal resistance.6 inner magnets that are connected 12 with transmission magnetic row are arranged in vacuum heat-insulating layer, from inner magnet 12 apart from 50 millimeters with interior cover glass-tube
Removable outer magnet 16 is contained in 2 outsides.Inner magnet 12, outer magnet 16 and adjusting screw mandrel 17 form an operating point governor motion.
During normal thermal-arrest/empty sun protection, show as dotted line/solid line in figure: the operating point makes bimetal leaf thermodynamic-driven part 4 right/left curved with lower/upper temperature, and transmission magnetic row 6 right/left are moved, and movable heat transfer piece 3 is subject to/is not subjected to magnetic patch 7 and attracts, and break away from/contacts with cover glass-tube 2.Be in high/low thermal resistance state between absorber 1 and cover glass-tube 2.
The distance of regulating between outer magnets 16 and inner magnet 12 by regulating screw mandrel 17 can change the interaction force between these two magnetics 16,12, and the empty sun protection temperature that the operating point of controlled heat transfer path is heat collecting element is regulated.
Fig. 5 embodiment is with the controlled heat transfer path (Fig. 5 embodiment empty sun protection principle is with Fig. 4 embodiment) of the movable heat transfer piece 3 of paramagnetic material, bimetal leaf thermodynamic-driven part 4 and a thermodynamic-driven of transmission magnetic row 6 compositions.The heat transfer piece 18 that vacuum heat-insulating layer contains with absorber 1, bimetal leaf thermodynamic-driven part 4 and is connected glass-tube 2 low thermal resistances and is connected, removable insulation 20 is contained at cover glass-tube 2 outside necking segment 19 places that are connected with heat transfer piece 18 low thermal resistances.Insulation 20 is connected by moving sets with the heat collecting element afterbody.
Regulate the area that insulation 20 hides necking segment 19, can change heat transfer piece 18 by the heat radiation power of necking segment 19 in 1～5 watt of scope.Correspondingly, empty sun protection temperature operating point is at C
Work+ 20～C
Work-20 ℃ of ℃ of range changing (C
WorkBe controlled heat transfer path empty sun protection nominal temperature).Be necking segment 19 heat radiation many/lack, the temperature of bimetal leaf thermodynamic-driven part 4 is low/height, empty sun protection operating point temperature is high/low.
Claims (2)
1. the method for capable of controlling heat radiation of vacuum heat collection component through cover glass tube: by between vacuum heat collection element absorber and cover glass-tube, controlled heat transfer path being set, vacuum heat collection element is carried out empty sun protection; Controlled heat transfer path comprises the movable heat transfer piece that is placed in the cover glass-tube, and movable heat transfer piece is driven by actuator; Actuator and movable heat transfer piece are in transmission connection; Actuator driving activity heat transfer piece changes the heat transfer state of controlled heat transfer path, realizes the controllable heat dissipation of vacuum heat collection element.
2. realize the vacuum heat collection element that passes through cover glass-tube controllable heat dissipation of the described method of claim 1, consist of by between vacuum heat collection element absorber and cover glass-tube, controlled heat transfer path being set, described controlled heat transfer path is made of actuator and the movable heat transfer piece that is placed in the cover glass-tube, it is characterized in that the thermodynamic-driven part of described actuator for being connected with the absorber low thermal resistance; Described thermodynamic-driven part and described movable heat transfer piece are in transmission connection.
3. realize the vacuum heat collection element that passes through cover glass-tube controllable heat dissipation of the described method of claim 1, consist of by between vacuum heat collection element absorber and cover glass-tube, controlled heat transfer path being set, it is characterized in that actuator is to be placed in the outer transmission magnetic row of cover glass-tube, is provided with a plurality of magnetic patch on transmission magnetic row; Movable heat transfer piece adopts the paramagnetic material manufacturing; A plurality of magnetic patch on transmission magnetic row with are connected the movable heat transfer piece of paramagnetic material and connect by magnetic drives; Transmission magnetic row by electronic, pneumatic mode is driven.
4. realize the vacuum heat collection element that passes through cover glass-tube controllable heat dissipation of the described method of claim 1, consist of by between vacuum heat collection element absorber and cover glass-tube, controlled heat transfer path being set, it is characterized in that described vacuum heat collection element is the metal heat pipe vacuum heat collection pipe; Be provided with some inclined-planes slideway on the tube plate absorber of described metal heat pipe vacuum heat collection pipe; Movable heat transfer piece is V-type activity heat transfer piece; Described V-type activity heat transfer piece is tied and can moves back and forth along described inclined-plane slideway; Described V-type activity heat transfer piece is connected with inner magnet by drive link; Actuator is external electromagnet and the micro controller near inner magnet; External actuator electromagnet and the micro controller of V-type activity heat transfer piece, drive link, inner magnet, close inner magnet form a controlled heat transfer path together.
5. vacuum heat collection element according to claim 2, is characterized in that described thermodynamic-driven part is bimetal leaf thermodynamic-driven part; The L-type activity heat transfer piece that described movable heat transfer piece is in transmission connection for the movable end with described bimetal leaf thermodynamic-driven part.
6. vacuum heat collection element according to claim 2, is characterized in that described actuator is the bimetal leaf thermodynamic-driven part that doubles as movable heat transfer piece.
7. vacuum heat collection element according to claim 4, is characterized in that described actuator is electromagnet.
8. vacuum heat collection element according to claim 2, is characterized in that described actuator is a bimetal leaf thermodynamic-driven part; Described movable heat transfer piece is the transmission magnetic row who is placed in the cover glass-tube; Described bimetal leaf thermodynamic-driven part and transmission magnetic row are in transmission connection.
9. vacuum heat collection element according to claim 2, is characterized in that described movable heat transfer piece comprises several transmission magnetic row and inner magnet; Described inner magnet and described transmission magnetic row are in transmission connection; Containing removable outer magnet from 50 millimeters of described inner magnets with the interior cover glass-tube outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910195101 CN102003817B (en) | 2009-09-03 | 2009-09-03 | Method and device capable of controlling heat radiation of vacuum heat collection component through cover glass tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910195101 CN102003817B (en) | 2009-09-03 | 2009-09-03 | Method and device capable of controlling heat radiation of vacuum heat collection component through cover glass tube |
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| Publication Number | Publication Date |
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| CN102003817A CN102003817A (en) | 2011-04-06 |
| CN102003817B true CN102003817B (en) | 2013-05-22 |
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| CN 200910195101 Expired - Fee Related CN102003817B (en) | 2009-09-03 | 2009-09-03 | Method and device capable of controlling heat radiation of vacuum heat collection component through cover glass tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423895A (en) * | 2012-05-18 | 2013-12-04 | 施侃超 | Full-glass vacuum heat collection element changing vacuum degree for stagnation protection |
| CN103423899A (en) * | 2012-05-18 | 2013-12-04 | 施侃超 | Variable-vacuum-degree idle sunning protection method and variable-vacuum-degree idle sunning protection product for all-glass vacuum heat collecting element |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4399807A (en) * | 1981-06-09 | 1983-08-23 | Chevron Research Company | Method and apparatus for overtemperature control of solar water heating system |
| DE3802125A1 (en) * | 1988-01-26 | 1989-08-03 | Raetz Karlheinz | Overheating protector for solar collectors |
| CN2630745Y (en) * | 2003-06-04 | 2004-08-04 | 罗桂荣 | Solar thermos bottle glass liner |
| CN1659667A (en) * | 2002-06-11 | 2005-08-24 | 打矢恒温器株式会社 | Direct current cutoff switch |
| CN2757028Y (en) * | 2004-12-10 | 2006-02-08 | 北京清华阳光能源开发有限责任公司 | Full glass vacuum solar heat collecting tube |
| TW200846609A (en) * | 2007-05-30 | 2008-12-01 | G Internation Co Ltd Sa | Water control device for solar-energy water heater |
-
2009
- 2009-09-03 CN CN 200910195101 patent/CN102003817B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4399807A (en) * | 1981-06-09 | 1983-08-23 | Chevron Research Company | Method and apparatus for overtemperature control of solar water heating system |
| DE3802125A1 (en) * | 1988-01-26 | 1989-08-03 | Raetz Karlheinz | Overheating protector for solar collectors |
| CN1659667A (en) * | 2002-06-11 | 2005-08-24 | 打矢恒温器株式会社 | Direct current cutoff switch |
| CN2630745Y (en) * | 2003-06-04 | 2004-08-04 | 罗桂荣 | Solar thermos bottle glass liner |
| CN2757028Y (en) * | 2004-12-10 | 2006-02-08 | 北京清华阳光能源开发有限责任公司 | Full glass vacuum solar heat collecting tube |
| TW200846609A (en) * | 2007-05-30 | 2008-12-01 | G Internation Co Ltd Sa | Water control device for solar-energy water heater |
Non-Patent Citations (1)
| Title |
|---|
| JP昭57-21751A 1982.02.04 |
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