CN204693859U - Fresnel solar heat receiver - Google Patents
Fresnel solar heat receiver Download PDFInfo
- Publication number
- CN204693859U CN204693859U CN201520320776.1U CN201520320776U CN204693859U CN 204693859 U CN204693859 U CN 204693859U CN 201520320776 U CN201520320776 U CN 201520320776U CN 204693859 U CN204693859 U CN 204693859U
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- Prior art keywords
- cover body
- thermal
- solar heat
- cover plate
- heat receiver
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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 discloses a kind of Fresnel solar heat receiver, it comprises cover body, transparent cover plate and thermal-collecting tube, the bottom of described cover body is provided with opening, described thermal-collecting tube is arranged in described cover body, and this cover body is stretched out at two ends, described transparent cover plate is arranged on the bottom of cover body, and close described opening, the cavity of described cover body is made to form a vacuum environment closed, described cover body is metal cover body, described transparent cover plate is glass cover-plate, the lap-joint of described transparent cover plate and cover body is provided with resilient metal strip, described transparent cover plate is welded with one end of resilient metal strip mutually by low-temperature brazing filler metal, and be provided with fluid sealant at weld, the other end of this resilient metal strip welds mutually with described cover body.The smart structural design that the utility model provides, rationally, by the closure of openings of transparent cover plate by cover body, thermal-collecting tube is made to be in vacuum environment, effective minimizing heat waste, and cost is low, be beneficial to wide popularization and application, effectively promote that Fresnel photo-thermal power generation technology further develops.
Description
Technical field
The utility model relates to solar heat receiver technical field, is specifically related to a kind of Fresnel solar heat receiver.
Background technology
Solar light-heat power-generation is the high-quality energy of a kind of high-quality, has the peak modulation capacity that photovoltaic generation lacks, and is a kind of novel clean energy resource.Photo-thermal power generation, according to the difference of spot mode, is generally divided into four kinds: tower, slot type, dish-style and Fresnel.Wherein, the advantage that Fresnel is little with its windage, land utilization ratio is high, speculum cost is low obtains a wide range of applications sight.Fresnel collecting system forms primarily of two parts, primary event mirror system and hot receiver system.Light is gathered on hot receiver by the primary event mirror discharged by array.And hot receiver generally has two kinds, one has secondary reflection function, improves light gathering further, and another kind is not with secondary reflection mirror, directly absorbed the heat energy of primary event mirror system reflection by plated film pipeline.
But what existing Fresnel hot receiver was difficult to low cost realizes vacuum, if publication number is 102853556A, condenser system disclosed in the application for a patent for invention that name is called " differential of the arc linear Fresnel condenser system and the dull and stereotyped heat storage heat collection device for this system ", it anti-reflection ultrawhite strengthening glass sheets comprising a thermal-arrest seat, be installed on the thermal-collecting tube in thermal-arrest seat and be fixed on thermal-arrest seat lower end, described thermal-arrest seat outer surface is coated with heat-insulation layer, is filled with heat-conducting medium between the inner chamber of thermal-arrest seat and thermal-collecting tube.The utility model also provides a kind of differential of the arc linear Fresnel condenser system, comprise linear Fresnel support, there is the differential of the arc mirror module of many group differential of the arc mirror groups, solar tracking controlling organization and above-mentioned dull and stereotyped heat storage heat collection device, described differential of the arc mirror module is movably installed on linear Fresnel support, solar tracking controlling organization comprises and is installed on solar tracking controller on linear Fresnel support and drive unit, dull and stereotyped heat storage heat collection device is installed on linear Fresnel pedestal upper end, and corresponding with differential of the arc mirror module.The pipeline of its plated film is not in vacuum state, needs to reduce heat waste by adiabatic aeroge.
And for example publication number is 102798231A, disclosed in the application for a patent for invention that name is called " a kind of new type solar energy secondary reflection face and bracing or strutting arrangement thereof ", secondary reflection face is composite paraboloid structure, composite paraboloid structure is that the parabola of the involute at top and side is combined, and the exhibition angle of involute is than the exhibition angle large 10 ~ 20 of standard involute; Its bracing or strutting arrangement, comprise the support compound parabolic panel suitable with its shape being fixed on top, secondary reflection face, be fixed on the support-side panel supporting outside two flank side surface of compound parabolic panel, the secondary reflection outside being fixed on support-side panel outside surrounds plate, formed and entirely surround structure, support the top that upper board is fixed on support-side panel and secondary reflection outside encirclement plate.Thermal-arrest pipeline due to it adopts the glass-metal vacuum heat collection pipe of slot type to realize vacuum heat-preserving, and cost is higher.
Summary of the invention
For above-mentioned deficiency, the utility model object is, provides a kind of smart structural design, rationally, cost is low, and low-loss, the Fresnel solar heat receiver that Heat-collecting effect is good.
A kind of Fresnel solar heat receiver, it comprises cover body, transparent cover plate and thermal-collecting tube, the bottom of described cover body is provided with opening, described thermal-collecting tube is arranged in described cover body, and this cover body is stretched out at two ends, described transparent cover plate is arranged on the bottom of cover body, and closes described opening, makes the cavity of described cover body form a vacuum environment closed; Described cover body is metal cover body, described transparent cover plate is glass cover-plate, described cover body is provided with the resilient metal strip suitable with described transparent cover plate, described transparent cover plate is welded with one end of resilient metal strip mutually by low-temperature brazing filler metal, and being provided with fluid sealant at weld, the other end of this resilient metal strip welds mutually with described cover body.
Improve as one of the present utility model, described low-temperature brazing filler metal be Theil indices higher than 70% kamash alloy.
Improve as one of the present utility model, described fluid sealant is positioned at away from vacuum environment side, and namely non-vacuum environment side is located at by sealing glue.
Improve as one of the present utility model, described elastic metallic strip adoption stainless steel, aluminium or copper become.
Improve as one of the present utility model, described cover body is provided with the briquetting suitable with described transparent cover plate.To strengthen the fixing of cover body and transparent cover plate.
Improve as one of the present utility model, described glass cover-plate adopts low iron ultra-clear glasses to make, and translucent effect is better.
Improve as one of the present utility model, described transparent cover plate is coated with antireflection coatings, reduce the reflection of light, effectively promote energy utilization rate.
Improve as one of the present utility model, the cross-sectional profile profile of described cover body is hemispherical, better resists atmospheric pressure, and good looking appearance.
Improve as one of the present utility model, described cover body is provided with the through hole allowing described thermal-collecting tube stretch out, sealed by corrugated stainless steel tubing between this through hole and thermal-collecting tube, good sealing effect, be conducive to reducing the loss of thermal-collecting tube thermal conductance by corrugated stainless steel tubing, and prevent the thermal expansion of thermal-collecting tube from producing stress to weld.
Improve as one of the present utility model, described thermal-collecting tube is stainless steel tube, and the outer surface of this stainless steel tube has high selectivity heat absorbing coating, realizes the high-absorbility to light, produces heat energy.
Improve as one of the present utility model, the cavity of described cover body is provided with secondary reflection mirror, and the optically focused axis of this secondary reflection mirror and the axis of thermal-collecting tube align.Further increasing focusing ratio, promotes heat-collecting temperature.
Improve as one of the present utility model, described secondary counter light microscopic is the aluminium mirror coating with composite parabolic, convenient formation, and reflecting effect is good, and cost is lower.
The beneficial effects of the utility model are: the smart structural design that the utility model provides, rationally, by the closure of openings of transparent cover plate by cover body, thermal-collecting tube is made to be in vacuum environment, effective minimizing heat waste, high insulating effect, and due to glass-to-metal sealing technology and the value metal vacuum thermal-collecting tube costly without the need to using slot type, greatly reduce costs, and overall structure is simple, compact, be easy to realize, cost is low, is beneficial to wide popularization and application, effectively promotes that Fresnel photo-thermal power generation technology further develops.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is cross-sectional structure schematic diagram of the present utility model.
Fig. 3 is the structural representation one of the utility model Elastic bonding jumper.
Fig. 4 is the structural representation two of the utility model Elastic bonding jumper.
Fig. 5 is the structural representation one of bellows in the utility model.
Fig. 6 is the structural representation two of bellows in the utility model.
Structural representation when Fig. 7 is the utility model use.
Detailed description of the invention
Embodiment: see Fig. 1 to Fig. 7, the utility model embodiment provides a kind of Fresnel solar heat receiver, it comprises cover body 1, secondary counter light microscopic 2, transparent cover plate 3 and thermal-collecting tube 4, the bottom of described cover body 1 is provided with opening, described secondary counter light microscopic 2 is arranged in the cavity of cover body 1, the optically focused axis of described thermal-collecting tube 4 corresponding secondary counter light microscopic 2 is arranged in described cover body 1, and this cover body 1 is stretched out at two ends, described transparent cover plate 3 is arranged on the bottom of cover body 1, and close described opening, make the cavity of described cover body 1 form a vacuum environment closed, heat waste is low.In the present embodiment, the cross-sectional profile profile of described cover body 1 is hemispherical, better resists atmospheric pressure, and good looking appearance.
Concrete, described cover body 1 is preferably metal cover body, described transparent cover plate 3 is preferably glass cover-plate, described cover body 1 is provided with the briquetting 9 suitable with described transparent cover plate 3, transparent cover plate 3 is used for be fixed on the opening of cover body 1, concrete, be fixed on the peripheral position of described cover body 1 by securing member 12 see this briquetting 9 of Fig. 3 and Fig. 4.Described transparent cover plate 3 is welded mutually by low-temperature brazing filler metal 5 one end with resilient metal strip 6, and is provided with fluid sealant 7 at weld, and the other end of this resilient metal strip 6 welds mutually with described cover body 1.Described resilient metal strip can adopt stainless steel, aluminium or copper product to make.See Fig. 3, resilient metal strip 6 can be C character form structure, and see Fig. 4, resilient metal strip 6 can be zigzag structure.In like manner, resilient metal strip 6 can also be other shape and structure, as long as can realize being tightly connected effect.Preferably, described low-temperature brazing filler metal 5 be Theil indices higher than 70% kamash alloy.Described glass cover-plate preferably adopts low iron ultra-clear glasses to make, and translucent effect is better.Preferably, described transparent cover plate 3 is coated with antireflection coatings, reduces the reflection of light, effectively promote energy utilization rate.
Concrete, see Fig. 5 and Fig. 6, described cover body 1 is provided with the through hole allowing described thermal-collecting tube 4 stretch out, and is sealed between this through hole and thermal-collecting tube 4 by corrugated stainless steel tubing 8.See Fig. 5, this corrugated stainless steel tubing 8 can be positioned at cover body 1, and see Fig. 6, this corrugated stainless steel tubing 8 also can be positioned at outside cover body 1.Preferably, described thermal-collecting tube 4 is stainless steel tube, and the outer surface of this stainless steel tube has high selectivity heat absorbing coating, realizes the high-absorbility to light, produces heat energy.
During work, see Fig. 7, the speculum 11 be fixed on fixed mount 10 can flash back the sunlight and enter in the utility model Fresnel solar heat receiver, because transparent cover plate 3 can by the closure of openings of cover body 1, then vacuumize, the cavity of cover body 1 is made to become vacuum environment, thermal-collecting tube 4 is allowed to be in vacuum environment, effective minimizing heat waste, high insulating effect, and due to glass-to-metal sealing technology and the value metal vacuum thermal-collecting tube costly without the need to using slot type, greatly reducing costs, being beneficial to and effectively promoting that Fresnel photo-thermal power generation technology further develops.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also change above-mentioned embodiment and revise.Therefore, the utility model is not limited to detailed description of the invention disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.As described in the utility model above-described embodiment, adopt structure same or similar with it and other receiver obtained, all in the utility model protection domain.
Claims (10)
1. a Fresnel solar heat receiver, it is characterized in that, it comprises cover body, transparent cover plate and thermal-collecting tube, the bottom of described cover body is provided with opening, described thermal-collecting tube is arranged in described cover body, and this cover body is stretched out at two ends, and described transparent cover plate is arranged on the bottom of cover body, and close described opening, make the cavity of described cover body form a vacuum environment closed; Described cover body is metal cover body, described transparent cover plate is glass cover-plate, described cover body is provided with the resilient metal strip suitable with described transparent cover plate, described transparent cover plate is welded with one end of resilient metal strip mutually by low-temperature brazing filler metal, and being provided with fluid sealant at weld, the other end of this resilient metal strip welds mutually with described cover body.
2. Fresnel solar heat receiver according to claim 1, is characterized in that, described low-temperature brazing filler metal be Theil indices higher than 70% kamash alloy.
3. Fresnel solar heat receiver according to claim 1, it is characterized in that, described fluid sealant is positioned at away from vacuum environment side.
4. Fresnel solar heat receiver according to claim 1, is characterized in that, described elastic metallic strip adoption stainless steel, aluminium or copper become.
5. Fresnel solar heat receiver according to claim 1, is characterized in that, the cross-sectional profile profile of described cover body is hemispherical.
6. Fresnel solar heat receiver according to claim 1 or 5, it is characterized in that, described cover body is provided with the through hole allowing described thermal-collecting tube stretch out, and is sealed between this through hole and thermal-collecting tube by corrugated stainless steel tubing.
7. Fresnel solar heat receiver according to claim 6, is characterized in that, described thermal-collecting tube is stainless steel tube, and the outer surface of this stainless steel tube has high selectivity heat absorbing coating.
8. Fresnel solar heat receiver according to claim 1, is characterized in that, the cavity of described cover body is provided with secondary reflection mirror, and the optically focused axis of this secondary reflection mirror and the axis of thermal-collecting tube align.
9. Fresnel solar heat receiver according to claim 8, is characterized in that, described secondary counter light microscopic is the aluminium mirror coating with composite parabolic.
10. Fresnel solar heat receiver according to claim 1, it is characterized in that, described cover body is provided with the briquetting suitable with described transparent cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520320776.1U CN204693859U (en) | 2015-05-19 | 2015-05-19 | Fresnel solar heat receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520320776.1U CN204693859U (en) | 2015-05-19 | 2015-05-19 | Fresnel solar heat receiver |
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| Publication Number | Publication Date |
|---|---|
| CN204693859U true CN204693859U (en) | 2015-10-07 |
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|---|---|---|---|
| CN201520320776.1U Active CN204693859U (en) | 2015-05-19 | 2015-05-19 | Fresnel solar heat receiver |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913522A (en) * | 2015-05-19 | 2015-09-16 | 张曹 | Fresnel type solar heat receiver |
| CN105571155A (en) * | 2016-02-01 | 2016-05-11 | 中国华能集团清洁能源技术研究院有限公司 | Fixing structure of linear Fresnel windshield |
-
2015
- 2015-05-19 CN CN201520320776.1U patent/CN204693859U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913522A (en) * | 2015-05-19 | 2015-09-16 | 张曹 | Fresnel type solar heat receiver |
| CN105571155A (en) * | 2016-02-01 | 2016-05-11 | 中国华能集团清洁能源技术研究院有限公司 | Fixing structure of linear Fresnel windshield |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190621 Address after: 213000 Huashan Road, Xinbei District, Changzhou, Jiangsu Province, No. 18 Patentee after: Changzhou cable Hongming Glass Co. Ltd. Address before: 100045 No. 1 Nanyi Lane, No. 2 District of Sanli River, Xicheng District, Beijing Patentee before: Zhang Cao |