CN201611181U - Vacuum circulating heat-collecting element - Google Patents
Vacuum circulating heat-collecting element Download PDFInfo
- Publication number
- CN201611181U CN201611181U CN2009202122370U CN200920212237U CN201611181U CN 201611181 U CN201611181 U CN 201611181U CN 2009202122370 U CN2009202122370 U CN 2009202122370U CN 200920212237 U CN200920212237 U CN 200920212237U CN 201611181 U CN201611181 U CN 201611181U
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- China
- Prior art keywords
- heat
- collecting element
- natural circulation
- tube
- vacuum
- 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.)
- Expired - Fee Related
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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
Abstract
The utility model provides a vacuum circulating heat-collecting element formed by an absorber placed in a vacuum heat insulation layer and a natural circulation channel which comprises an ascending tube, a descending tube and a heat releasing end; and the inner part of the natural circulation channel is not fully filled with liquid heat mediums. The heat-collecting element is characterized in that the absorber placed in the vacuum heat insulation layer is connected with the ascending tube of the natural-circulation channel in a low thermal resistance manner or integrated with the ascending tube to form a whole. The heat-collecting element has the beneficial effects of circulating heat-transfer without providing driving forces, quick start-up, anti-freezing performance, and no pipe explosion when the heat-collecting element is obliquely or vertically arranged, and even if a single tube is damaged, the heat-collecting element can still collect heat and be used to manufacture a solar heat collecting device with water quality meeting hygienic standards, more heat gain and excellent heat insulation performance; and furthermore, the heat-collecting element has the advantages of free design of heat transfer interface, insensitivity to the vacuum degree and overheat protection, can semi-permanently and steadily work in a range of 20 DEG to 500 DEG, can uses low carbon steel and aluminum to replace copper, and can avoid hollow sun-drying accidents.
Description
Technical field
The utility model relates to the vacuum cycle heat collecting element.
Background technology
Vacuum intubate solar water heater can provide the domestic hot-water in the winter time, but thermal-collecting tube internal memory hydro-thermal is heavy big, hot less, frost resistance is poor, can bombing, the single tube breakage can metal run out, the water-quality deterioration bacterium exceeds standard.Adopt the heat collector tube element can make anhydrous water heater in the pipe, but copper---hydro-thermal pipe cost height, the tangible performance degradation phenomenon of also existence freezing, that have easily.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of vacuum cycle heat collecting element is provided.
The technical scheme in the invention for solving the technical problem: with placing absorber and a Natural Circulation runner that constitutes by ascending tube, down pipe and release end of heat in the vacuum heat-insulating layer to form a vacuum cycle heat collecting element.The inner can of Natural Circulation runner but be not full of liquid heating agent.The ascending tube of Natural Circulation runner with place absorber low thermal resistance in the vacuum heat-insulating layer to be connected or with the absorber integral production.
The beneficial effects of the utility model comprise: for the occasion of tiltable or positioned vertical, circulation conduct heat need not to be equipped with power, starts fast, freeze proof, pipe explosion, single tube damages still can thermal-arrest, can make water quality meet sanitary standard, hot many, solar collector that heat-insulating property is excellent; But heat exchange interface designs freedom, can prevent empty solarization accident to the insensitive semipermanent steady operation of vacuum at the heat collecting element of 20～500 ℃ of scopes, available mild steel and aluminium substitution copper, overtemperature protection.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is an embedded vacuum cycle set thermal element configuration diagram.
Fig. 2 is one can cut down sealing-in vacuum cycle heat collecting element configuration diagram.
Fig. 3 is a cover glass tube heat release vacuum cycle heat collecting element configuration diagram.
Fig. 4 is a glass tube sealing by fusing vacuum cycle heat collecting element configuration diagram.
Fig. 5 is an indent heat release interface vacuum cycle heat collecting element configuration diagram.
Fig. 6 is an overtemperature protection vacuum cycle heat collecting element configuration diagram.
1. ascending tubes among the figure; 2. down pipe; 3. release end of heat; 4. inner glass tube; 5. thermofin; 6. vacuum heat-insulating layer; 7. absorber; 8. cover glass tube; 9. can cut down seal connector; 10. necking segment; 11. concave section; 12. free end pawl; 13. heating power element.
The specific embodiment
Among Fig. 1, constitute a Natural Circulation runner with ascending tube 1, down pipe 2 and tubulose release end of heat 3, the ascending tube 1 of Natural Circulation runner embed all-glass vacuum thermal-collecting tube and and the inner glass tube 4 of thermal-collecting tube between adopt thermofin 5 to conduct heat, form an embedded vacuum cycle set thermal element.
Fig. 1 embodiment embedded vacuum cycle set thermal element is done the inclination installation that release end of heat 3 height are put in the sun, and the heating agent liquid level shown in the oblique dotted line is the level of state.Sunlight sees through cover glass tube and be converted to heat energy on the absorbing film of thermal-collecting tube inner glass tube 4, heat energy is passed to the heating agent in the ascending tube 1 by inner glass tube 4 and thermofin 5 and is made the heating agent expanded by heating by ascending tube 1 come-up, tubulose release end of heat 3 places at the Natural Circulation runner, heating agent is emitted the heat energy temperature and is reduced entering down pipe 2, sinks to enter ascending tube 1 behind the end once more and be heated and float.So along the circulation thermal-arrest that goes round and begins again of approach shown in the band arrow curve.
Answer degasification before the Natural Circulation runner can heating agent, can finishes and should seal.The design of Natural Circulation runner and the selection of heating agent and can amount thereof should satisfy: the 1) foundation of Natural Circulation; 2) the heating agent stable performance be not easy thermal decomposition, saturated vapor force down, not with Natural Circulation runner generation chemical reaction; 3) possessing the heating agent expansion space in the Natural Circulation runner solidifies heating agent or empty relevant parts is not produced adverse effect when shining volumetric expansion; 4) the release end of heat operating mode is good.
For reducing the hot short circuit between ascending tube 1 and the down pipe 2, embedded vacuum cycle set thermal element can also adopt the down pipe that has heat insulation layer.
The release end of heat 3 of Fig. 1 embodiment is that tubulose is outwardly directed.The vacuum cycle heat collecting element also can adopt the heat release interface of indent.
Among Fig. 2, constitute a Natural Circulation runner with ascending tube 1, down pipe 2 and tubulose release end of heat 3, the ascending tube 1 of Natural Circulation runner and absorber 7 integral productions that place in the vacuum heat-insulating layer 6, adopt one between the tubulose release end of heat 3 of Natural Circulation runner and the cover glass tube 8 and can cut down seal connector 9 sealing-ins, form one and can cut down sealing-in vacuum cycle heat collecting element.Can cut down material can either with metal solder, can be connected with the glass heat press seal again.
Among Fig. 2, adopt ascending tube 1 to stretch into the design of tubulose release end of heat 3 inside, help to improve collecting efficiency.
Vacuum heat-insulation between the ascending tube 1 of Fig. 2 embodiment and the down pipe 2, very favourable to the circulation thermal-arrest.
Inner surface coats infrared reflective material in the non-light area of cover glass tube, can effectively reduce the radiation heat loss of heat collecting element.
Among Fig. 3, constitute a Natural Circulation runner with ascending tube 1, down pipe 2 and tubulose release end of heat 3, the ascending tube 1 of Natural Circulation runner and absorber 7 integral productions that place in the vacuum heat-insulating layer 6, being lined with an elasticity heat transfer piece between cover glass tube 8 necking segment 10 of the tubulose release end of heat 3 of Natural Circulation runner and closure conducts heat to improve, tubulose release end of heat 3 is formed a cover glass tube heat release vacuum cycle heat collecting element by elasticity heat transfer piece and necking segment 10 heat releases.
Can omit by cover glass tube and necking segment heat release thereof and can cut down seal connector, good airproof performance, corrosion-resistant.
Sometimes, the load container that cooperates with heat collecting element also needs heat collecting element that such necking segment 10 is arranged.
Among Fig. 4, ascending tube 1, down pipe 2 and the tubulose release end of heat 3 made with glass constitute a glass Natural Circulation runner, ascending tube 1 is connected with aluminium section bar absorber 7 low thermal resistances in placing vacuum heat-insulating layer 6, tubulose release end of heat 3 is connected with cover glass tube 8 arranged concentric and with cover glass tube 8 fusions, forms a glass tube sealing by fusing vacuum cycle heat collecting element.
Among Fig. 5, constitute a Natural Circulation runner with ascending tube 1, down pipe 2 and coil heat exchanger release end of heat 3, the ascending tube 1 of Natural Circulation runner and absorber 7 integral productions that place in the vacuum heat-insulating layer 6, coil heat exchanger release end of heat 3 cooperates to conduct heat with cover glass tube concave section 11 and is connected, and forms an indent heat release interface vacuum cycle heat collecting element.Be lined with an elasticity heat transfer piece between coil heat exchanger release end of heat 3 and the cover glass tube concave section 11, coil heat exchanger release end of heat 3 is by elasticity heat transfer piece and 11 heat releases of cover glass tube concave section.
The coil heat exchanger release end of heat 3 that cooperates with cover glass tube concave section 11 among Fig. 5 embodiment can also adopt other forms, for example the jacketed type exchanger release end of heat that cooperates with cover glass tube concave section 11 arranged concentric.
Among Fig. 6; constitute a Natural Circulation runner with ascending tube 1, down pipe 2 and tubulose release end of heat 3; the ascending tube 1 of Natural Circulation runner and absorber 7 integral productions that place in the vacuum heat-insulating layer 6; the bimetal leaf heating power element 13 that is connected, has free end pawl 12 with down pipe 2 low thermal resistances is set in vacuum heat-insulating layer 6, forms an overtemperature protection vacuum cycle heat collecting element.
Under the normal working temperature, tubulose release end of heat 3 is by elasticity heat transfer piece and 10 heat releases of cover glass tube 8 necking segment.The free end pawl 12 of bimetal leaf heating power element 13 does not contact with cover glass tube 8.
When the empty solarization of heat collecting element internal temperature is too high; the free end pawl 12 of bimetal leaf heating power element 13 is heated to turn up and contacts with cover glass tube 8 to position shown in the dotted line; partial heat energy is dispersed into environment by these free end pawls 12 and cover glass tube 8, makes the temperature of heat collecting element reduce the realization overtemperature protection.Overtemperature protection can automatically terminate later.
Claims (10)
1. vacuum cycle heat collecting element, form with placing absorber and a Natural Circulation runner that constitutes by ascending tube, down pipe and release end of heat in the vacuum heat-insulating layer, the inner can of Natural Circulation runner but be not full of liquid heating agent, the ascending tube absorber low thermal resistance interior that it is characterized in that the Natural Circulation runner with placing vacuum heat-insulating layer be connected or with the absorber integral production.
2. heat collecting element according to claim 1 is characterized in that containing thermofin between the inner glass tube of the ascending tube of Natural Circulation runner and all-glass vacuum thermal-collecting tube.
3. heat collecting element according to claim 1 is characterized in that containing one between the release end of heat of Natural Circulation runner and the cover glass tube can cut down seal connector.
4. heat collecting element according to claim 1 is characterized in that containing an elasticity heat transfer piece between the release end of heat of Natural Circulation runner and the closed cover glass tube.
5. heat collecting element according to claim 1 is characterized in that containing a glass Natural Circulation runner.
6. heat collecting element according to claim 1 is characterized in that containing a glass tube release end of heat that is connected with the cover glass tube fusion.
7. heat collecting element according to claim 1 is characterized in that containing the heat release interface of indent.
8. heat collecting element according to claim 1, it is characterized in that the Natural Circulation runner contains a coil pipe or a jacketed type exchanger release end of heat that cooperates heat transfer to be connected with the cover glass tube concave section, contains an elasticity heat transfer piece between coil pipe or jacketed type exchanger release end of heat and the cover glass tube concave section.
9. heat collecting element according to claim 1 is characterized in that vacuum heat-insulating layer contains the bimetal leaf heating power element that is connected, has the free end pawl with absorber or down pipe low thermal resistance.
10. heat collecting element according to claim 2 is characterized in that containing a down pipe that has heat insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202122370U CN201611181U (en) | 2009-11-11 | 2009-11-11 | Vacuum circulating heat-collecting element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202122370U CN201611181U (en) | 2009-11-11 | 2009-11-11 | Vacuum circulating heat-collecting element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201611181U true CN201611181U (en) | 2010-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202122370U Expired - Fee Related CN201611181U (en) | 2009-11-11 | 2009-11-11 | Vacuum circulating heat-collecting element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201611181U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052788A (en) * | 2009-11-11 | 2011-05-11 | 施中天 | Vacuum circulating heat-collecting component |
-
2009
- 2009-11-11 CN CN2009202122370U patent/CN201611181U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052788A (en) * | 2009-11-11 | 2011-05-11 | 施中天 | Vacuum circulating heat-collecting component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Haining IEMYC Solar Energy Technology Co., Ltd. Assignor: Shi Guoliang Contract record no.: 2011330000941 Denomination of utility model: Solar heat-collecting device with overheating protection vacuum circulating heat-collecting elements Granted publication date: 20101020 License type: Exclusive License Record date: 20110712 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101020 Termination date: 20111111 |