CN201748667U - Solar collector with transparent cover body - Google Patents
Solar collector with transparent cover body Download PDFInfo
- Publication number
- CN201748667U CN201748667U CN2010202638349U CN201020263834U CN201748667U CN 201748667 U CN201748667 U CN 201748667U CN 2010202638349 U CN2010202638349 U CN 2010202638349U CN 201020263834 U CN201020263834 U CN 201020263834U CN 201748667 U CN201748667 U CN 201748667U
- Authority
- CN
- China
- Prior art keywords
- cover body
- endothermic tube
- transparent cover
- opening
- collector
- 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
- Y02E10/44—Heat exchange systems
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- Photovoltaic Devices (AREA)
Abstract
The utility model provides a solar collector with a transparent cover body. The solar collector comprises a heat-absorbing tube which is in a spiral arrangement and forms a cavity; an opening is reserved at one end of the cavity to receive intensively incident sunlight; one end of the heat-absorbing tube is connected with a working fluid inlet pipe; the other end of the heat-absorbing tube is connected with a working fluid outlet pipe; and the opening is covered with the transparent cover body which is a plane. The solar collector is characterize din that: the solar collector is provided with a reflector at the other end opposite to the opening; the reflector is extended into the cavity to reflect the incident sunlight to the heat-absorbing tube; and the reflector is triangular pyramidal. The transparent cover body of the solar collector seals the opening to prevent impurities such as sand and dust and the like from entering the collector, so that heat energy in the collector can be prevented from being brought out of the collector with air circulation; moreover, the reflector is triangular pyramidal, so that reflected light is more concentrated, which is favorable for improving the heat-absorbing efficiency of the collector.
Description
Technical field
The utility model belongs to the solar energy utilization technique field, is meant a kind of transparent cover body solar thermal collector especially.
Background technology
The prior art relevant with the utility model can be with reference to shown in the PCT publication application WO96/12918, the heat collector that it disclosed comprises a cylindrical housings, inner surface row in this cylindrical housings is provided with endothermic tube, this endothermic tube outer surface is coated with high temperature solar energy selective absorption coating, and these endothermic tube two ends are connected with working fluid outlet and inlet tube, and an end of this housing is the opening setting, so that receive the incident light of concentrating, when the sunshine of being concentrated after the opening of this housing is injected, absorber coatings through the plating of endothermic tube outer surface is a heat energy with conversion of solar energy, thereby the working fluid in the heating endothermic tube, the weak point of this kind structure is: first, the sunshine that quilt is concentrated is after the opening of this housing is injected, though most of quilt is converted into heat energy by the absorber coatings of endothermic tube surface plating, but be reflected onto in the atmosphere according to some, so cause whole efficiency not high; Second, owing to be provided with for opening wide by the opening of the sunshine incident of concentrating in the said structure, if this heat collector is applied in windy when regional, be that some other materials meetings such as (as sand and dust and leaves etc.) are blown in the opening of this heat collector by wind on the one hand, so can hinder the absorption of sunshine, be to work as wind from the process that opening is blown into and blows out on the other hand, wind can be taken away the part heat, so also can reduce the whole efficiency of this heat collector.
The utility model content
The purpose of this utility model is to provide a kind of solar thermal collector, in order to overcome the existing low defective of heat collector collecting efficiency.
To achieve these goals, the utility model provides a kind of transparent cover body solar thermal collector, comprise endothermic tube, described endothermic tube spiral is arranged and is formed a cavity, this cavity one end is provided with an opening, to receive the sunshine of concentrating incident, and described endothermic tube one end is connected with the working fluid inlet tube, and the other end is connected with the working fluid outlet, and described opening part covers a transparent cover body, and described transparent cover body is the plane and is provided with, described solar thermal collector is provided with a reflector at the other end relative with opening, described reflector extends in this cavity, reflexes on the described endothermic tube with the sunshine with incident, and described reflector is a triangular pyramidal.
Optionally, described endothermic tube is back taper from the opening end to end and arranges.
Optionally, described transparent cover body is made by the material of high transmission rate.
Optionally, described endothermic tube surface scribbles the sunshine selectivity and absorbs and film.
Optionally, described heat collector outside is provided with a housing, and is provided with thermal insulating warm-keeping layer between described housing and the described endothermic tube.
Owing to adopted technique scheme, compared with prior art, the utlity model has following advantage: the utility model is by transparent cover body solar thermal collector transparent cover body sealing opening, thereby avoid impurity such as sand and dust to enter in the heat collector, can avoid the heat in the heat collector to be taken out of heat collector with air circulation, reflector is a triangular pyramidal simultaneously, and reflection ray is more assembled, and helps improving the heat absorption efficiency of heat collector.
Description of drawings
Fig. 1 is for implementing the cross-sectional schematic of transparent cover body solar thermal collector of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in detail.
See also shown in Figure 1, for implementing the cross-sectional schematic of solar thermal collector 1 of the present utility model, this solar thermal collector 1 comprises a housing 13, in the specific implementation, these housing 13 outer surfaces are streamlined (as semicircle or oval), thereby minimizing air drag, and this housing 13 inner rows are provided with endothermic tube 10, this endothermic tube 10 formula is in the shape of a spiral arranged and is formed a cavity 100 thus, and these cavity 100 1 ends are provided with an opening 101, so that the sunshine 15 that makes sunlight collector (not shown) be assembled is injected this cavity 100 inside from this opening 101, so that endothermic tube 10 absorbs.In addition, these endothermic tube 10 surfaces are provided with the selectivity absorption and film 104, as the electroplating black chromium layer, so endothermic tube 10 utilizes this absorption to film 104 to absorb visible light, do not absorb infrared light, also not outside simultaneously irradiating infrared light is so to increase the heat absorption efficiency of endothermic tube 10.
In addition, this housing 13 is in the opening 101 outside transparent cover body 11 that cover, this transparent cover body 11 is the plane and is provided with, so the sunshine of concentrating through concentrator 15 is transmitted through in this cavity 100 from this transparent cover body 11 with the direction perpendicular to this curved surface, so can reduce reflection, thereby the utilization of maximal efficiency is by the sunshine of concentrating 15, and when implementing, this transparent cover body 11 is made by the material of high transmission rate.
Moreover, reflex in the atmosphere again in order to reduce the sunshine 15 that is incident in the cavity 100, this housing 13 is provided with a reflector 12 at the other end relative with opening 101, this reflector 12 extends in this cavity 100, so can will be reflexed to again to endothermic tube 10 by the sunshine 15 of endothermic tube 10 surface reflections, to increase the number of times of sunshine, absorb sunshine 15 thereby be beneficial to endothermic tube 10 better in these cavity 100 internal reflections.In the specific implementation, this reflector 12 can be the triangle taper, and these reflector 12 surfaces also can be provided with many convex-concave surfaces, fully sunshine 15 is reflexed on the endothermic tube 10.
In addition, this endothermic tube 10 shape is in the shape of a spiral arranged, and reduce gradually from the radius of spin of opening 101 end to end, to make this endothermic tube 10 be back taper or half elliptic is arranged, even the bending curvature of endothermic tube 10 changes, so the low working fluid of temperature is heated after the working fluid inlet tube 102 of opening 101 1 ends enters endothermic tube 10, and by variation with endothermic tube 10 bending curvature, thereby promote that fluid radially mixes, so can make fluid fully mix and flow out, thereby improve heat exchanger effectiveness with the absorption heat and from working fluid outlet 103.
Moreover, be provided with thermal insulating warm-keeping layer 14 between this housing 13 and the endothermic tube 10, conduct to housing 13 outsides so that prevent the heat that endothermic tube 10 absorbs, certainly can also be other the thermal-radiating structure that prevents, specifically can repeat no more with reference to Chinese patent 200420109283.5 and 200410065548.0 herein.
Compared with prior art, the utlity model has following advantage:
First, implement heat collector 1 of the present utility model and one transparent cover body 11 is set by opening 101 places at cavity 100, so can make the sunshine 15 of concentrating incident cross this transparent cover body 11 with the direction transmission of vertical this curved surface and be incident in the opening 101, thereby reduce reflection, simultaneously by these transparent cover body 11 these openings 101 of sealing, thereby avoid impurity such as sand and dust to enter in the heat collector 1, also can avoid the heat in the heat collector 1 to be taken out of heat collector 1, so be beneficial to the efficient that improves this heat collector 1 with the convection current of air.
Second, by being arranged, endothermic tube 10 is back taper or half elliptic, thereby make the bending curvature of endothermic tube 10 change, so the low working fluid of temperature is heated after opening 101 1 ends enter endothermic tube, and by variation with endothermic tube 10 bending curvature, facilitate fluid turbulent, so can make fluid fully mix, thereby improve heat exchanger effectiveness with the absorption heat.
The 3rd, film 104 by absorbing, as the electroplating black chromium layer in endothermic tube 10 surface-coated selectivity, so endothermic tube 10 utilizes this selectivity to absorb to film 104 to absorb visible light, do not absorb infrared light, also not outside simultaneously irradiating infrared light is so to increase the heat absorption efficiency of this heat collector 1.
The 4th, reflector is a triangular pyramidal, and reflection ray is more assembled, and helps improving the heat absorption efficiency of heat collector.
Though the utility model discloses as above with preferred embodiment, the utility model is not to be defined in this.Any those skilled in the art in not breaking away from spirit and scope of the present utility model, all can do various changes and modification, and therefore protection domain of the present utility model should be as the criterion with claim institute restricted portion.
Claims (5)
1. transparent cover body solar thermal collector, comprise endothermic tube, described endothermic tube spiral is arranged and is formed a cavity, this cavity one end is provided with an opening, to receive the sunshine of concentrating incident, and described endothermic tube one end is connected with the working fluid inlet tube, and the other end is connected with the working fluid outlet, described opening part covers a transparent cover body, described transparent cover body is the plane and is provided with, and it is characterized in that: described solar thermal collector is provided with a reflector at the other end relative with opening, and described reflector extends in this cavity, reflex on the described endothermic tube with the sunshine with incident, described reflector is a triangular pyramidal.
2. solar thermal collector as claimed in claim 1 is characterized in that: described endothermic tube is back taper from the opening end to end and arranges.
3. solar thermal collector as claimed in claim 1 is characterized in that: described transparent cover body is made by the material of high transmission rate.
4. solar thermal collector as claimed in claim 1 is characterized in that: described endothermic tube surface scribbles the absorption of sunshine selectivity and films.
5. solar thermal collector as claimed in claim 1 is characterized in that: described heat collector outside is provided with a housing, and is provided with thermal insulating warm-keeping layer between described housing and the described endothermic tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202638349U CN201748667U (en) | 2010-07-20 | 2010-07-20 | Solar collector with transparent cover body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202638349U CN201748667U (en) | 2010-07-20 | 2010-07-20 | Solar collector with transparent cover body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201748667U true CN201748667U (en) | 2011-02-16 |
Family
ID=43583342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202638349U Expired - Fee Related CN201748667U (en) | 2010-07-20 | 2010-07-20 | Solar collector with transparent cover body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201748667U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374671A (en) * | 2011-11-14 | 2012-03-14 | 天津大学 | Hemispherical cavity type solar heat collection device |
| CN102901236A (en) * | 2011-07-27 | 2013-01-30 | 益科博能源科技（上海）有限公司 | Solar receiver, heat collecting system and method for converting solar energy into heat energy |
| CN103512224A (en) * | 2012-05-31 | 2014-01-15 | 北京兆阳光热技术有限公司 | Solar light and heat receiving device |
| WO2015078371A1 (en) * | 2013-11-29 | 2015-06-04 | 湘电集团有限公司 | W-type concentrating solar heat absorber |
-
2010
- 2010-07-20 CN CN2010202638349U patent/CN201748667U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901236A (en) * | 2011-07-27 | 2013-01-30 | 益科博能源科技（上海）有限公司 | Solar receiver, heat collecting system and method for converting solar energy into heat energy |
| CN102374671A (en) * | 2011-11-14 | 2012-03-14 | 天津大学 | Hemispherical cavity type solar heat collection device |
| CN103512224A (en) * | 2012-05-31 | 2014-01-15 | 北京兆阳光热技术有限公司 | Solar light and heat receiving device |
| CN103512224B (en) * | 2012-05-31 | 2015-12-02 | 北京兆阳光热技术有限公司 | A kind of solar energy heat-receiving apparatus |
| WO2015078371A1 (en) * | 2013-11-29 | 2015-06-04 | 湘电集团有限公司 | W-type concentrating solar heat absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20140720 |
|
| EXPY | Termination of patent right or utility model |