CN102878688A - Fresnel solar thermal collector with low radiant thermal runaway and quasi black window structure - Google Patents
Fresnel solar thermal collector with low radiant thermal runaway and quasi black window structure Download PDFInfo
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- CN102878688A CN102878688A CN2012102456062A CN201210245606A CN102878688A CN 102878688 A CN102878688 A CN 102878688A CN 2012102456062 A CN2012102456062 A CN 2012102456062A CN 201210245606 A CN201210245606 A CN 201210245606A CN 102878688 A CN102878688 A CN 102878688A
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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 relates to a Fresnel solar thermal collector with low radiant thermal runaway and a quasi black window structure. The Fresnel solar thermal collector comprises a plurality of heat-absorbing tubes, a plurality of heat-absorbing plates, a header, an inlet header tube, an outlet header tube, an outer cover and a transparent close cover, wherein the heat-absorbing plates are connected to the heat-absorbing tubes; two ends of the heat-absorbing tubes are connected to the header; the heat-absorbing tube and the heat-absorbing tube, the heat-absorbing tubes and the inlet header tube, and the heat-absorbing tubes and the outlet header tube are communicated through the header; the outer cover has a structure shaped like a Chinese character 'AO' (meaning concave); a cavity is formed on the inner side of the outer cover; and the heat-absorbing tubes, the heat-absorbing plates and the header are arranged in the cavity on the inner side of the outer cover. A multi-cavity structure formed by the plurality of heat-absorbing plates forms a quasi black window structure; the quasi black window structure has an obvious inhibition effect on thermal runaway; and a great deal of heat radiation can be absorbed by the heat-absorbing plates again. Compared with the conventional single-tube thermal collector of a groove type solar thermal power generation system and the conventional multi-tube thermal collector of a linear Fresnel solar thermal power generation system, the Fresnel solar thermal collector has the characteristic of low loss of radiant heat.
Description
Technical field
The invention belongs to solar energy high temperature heat utilization field, particularly a kind of low radiant heat escape, accurate black window construction Fresnel solar energy heat collector.
Background technology
In solar energy heat utilization field, the collection of sunshine is divided into two types of non-optically focused and optically focused.The sunlight collection of light-focusing type has higher requirement to heat collector, generally need to cover high-absorbility, the coating of antiradar reflectivity at the receiving surface of heat collector.Focus solar collector is because the thermal power on the unit are is large, and temperature is high, and when having guaranteed the higher absorption rate, high heat radiation also exists simultaneously, and this causes the final efficient of heat collector to decrease.For the single hose heat collector, it is mainly used in the trough type solar power generation system, can consult the patent application that publication number is CN1808015A, the vacuum type glass metal pipe heat collector that this patent discloses, essential structure is metal heat absorption tube and the glass tube of coaxial assembling, be evacuated between metal tube and the glass tube, adopt fusion techniques between metal tube and the glass tube and adopt the ripple joint to absorb swelling stress, owing to having taked the vacuum measure, this kind heat collector effectively reduces the heat convection heat waste, but the large weak point of radiation heat loss at high temperature can't solve.And the fusion joining process between metal and the glass is complicated, and firm for guaranteeing vacuum and Stability Analysis of Structures, the heat collector processing and assembling of this kind form is complicated, and cost is higher, and along with the rising of serviceability temperature, the decrease in efficiency that the radiation heat loss brings is obvious.For the multitube heat collector, it is mainly used in linear Fresnel formula solar heat power generation system, can consult the patent application that publication number is CN101836054A, the linear Fresnel formula solar thermal collector that this patent discloses, its heat absorbing part is some the metal tubes that are arranged side by side, the collector structure of this kind structure is comparatively simple, but deposits equally the at high temperature quick problem that increases of radiation heat loss.
Summary of the invention
The object of the present invention is to provide that a kind of low radiant heat is escaped, accurate black window construction Fresnel solar energy heat collector, in order to the large weak point of radiation heat loss of the multitube heat collector of the single hose heat collector that overcomes existing trough type solar power generation system and linear Fresnel formula solar heat power generation system.
The technical solution used in the present invention is finished in the following way: a kind of low radiant heat of the present invention is escaped, accurate black window construction Fresnel solar energy heat collector, this Fresnel solar energy heat collector comprises some endothermic tubes, some absorber plates, header, the entrance house steward, the outlet header, outer cover and transparent cover, absorber plate is connected to above the endothermic tube, the two ends of endothermic tube are connected to above the header, between endothermic tube and the endothermic tube, be connected perforation by header between endothermic tube and the entrance house steward and between endothermic tube and the outlet header, outer cover is the concave shape structure, the inboard of outer cover is a cavity, endothermic tube, absorber plate and header are installed in the cavity of outer cover inboard, and the opening part of outer cover is provided with transparent cover.Absorber plate absorbs the hot spot heat of collecting from the Fresnel solar energy condenser, and it is passed to endothermic tube.The formed Multicarity structure of several absorber plates forms the black window construction of a standard, and this black window construction has obvious inhibitory action to thermal runaway, and most of heat radiations are absorbed again by absorber plate, thereby has improved the collecting efficiency of whole heat collector.
In described a kind of low radiant heat escape, accurate black window construction Fresnel solar energy heat collector, the opening down setting of outer cover.
In described a kind of low radiant heat escape, accurate black window construction Fresnel solar energy heat collector, outer cover is comprised of housing case and heat-insulating heat-preserving material, and housing case is folder dead level structure, and heat-insulating heat-preserving material is filled in the folder dead level of housing case.
In described a kind of low radiant heat escape, accurate black window construction Fresnel solar energy heat collector, in the cavity of outer cover inboard, be provided with to support the supporting traverse of endothermic tube; Be provided with the support ring of fixed support crossbeam at outer cover, supporting traverse is fixed on above the support ring, between supporting traverse and the support ring heat insulating mattress is housed.
In described a kind of low radiant heat escape, accurate black window construction Fresnel solar energy heat collector, endothermic tube adopts metal material to make, and absorber plate is fixed on the endothermic tube.Absorber plate conducts the heat that absorbs to endothermic tube.
In described a kind of low radiant heat escape, accurate black window construction Fresnel solar energy heat collector, header comprises influent header, outlet header, intermediate header and end header.
In described a kind of low radiant heat escape, accurate black window construction Fresnel solar energy heat collector, have the hole that several are connected with endothermic tube in influent header one side, have a hole that is connected with the entrance house steward at the influent header opposite side.
In described a kind of low radiant heat escape, accurate black window construction Fresnel solar energy heat collector, have the hole that several are connected with endothermic tube in outlet header one side, have a hole that is connected with the outlet header at the outlet header opposite side.
In described a kind of low radiant heat escape, accurate black window construction Fresnel solar energy heat collector, have the hole that several are connected with endothermic tube in intermediate header one side.
In described a kind of low radiant heat escape, accurate black window construction Fresnel solar energy heat collector, have the hole that several are connected with endothermic tube in end header one side.
A kind of low radiant heat of the present invention is escaped, accurate black window construction Fresnel solar energy heat collector is compared with the single hose heat collector of existing trough type solar power generation system and the multitube heat collector of linear Fresnel formula solar heat power generation system, has the little characteristics of radiation heat loss.
Description of drawings
Fig. 1 is that a kind of low radiant heat of the present invention is escaped, the axonometric drawing of accurate black window construction Fresnel solar energy heat collector embodiment 1.
Fig. 2 is that a kind of low radiant heat of the present invention is escaped, the cross section structure schematic diagram of accurate black window construction Fresnel solar energy heat collector embodiment 1.
Fig. 3 is that a kind of low radiant heat of the present invention is escaped, the vertical section structure schematic diagram of accurate black window construction Fresnel solar energy heat collector embodiment 1.
Fig. 4 is that a kind of low radiant heat of the present invention is escaped, standard is deceived the arrival end of window construction Fresnel solar energy heat collector embodiment 1 and the structural representation of the port of export.
Fig. 5 is that a kind of low radiant heat of the present invention is escaped, the intermediate connection structure schematic diagram of accurate black window construction Fresnel solar energy heat collector embodiment 1.
Fig. 6 is that a kind of low radiant heat of the present invention is escaped, the end construction schematic diagram of accurate black window construction Fresnel solar energy heat collector embodiment 1.
Fig. 7 is that a kind of low radiant heat of the present invention is escaped, the axonometric drawing of accurate black window construction Fresnel solar energy heat collector embodiment 2.
Fig. 8 is that a kind of low radiant heat of the present invention is escaped, the structural representation of the arrival end of accurate black window construction Fresnel solar energy heat collector embodiment 2.
Fig. 9 is that a kind of low radiant heat of the present invention is escaped, the port of export structural representation of accurate black window construction Fresnel solar energy heat collector embodiment 2
In accompanying drawing 1～accompanying drawing 9,101 expression endothermic tubes; 102 expression absorber plates; 103 expression supporting traverses; 104 expression heat-insulating heat-preserving materials; 105 expression heat insulating mattress; 106 expression support rings; 107 expression transparent cover; 108 expression outer covers; 109 expression entrance house stewards; 110 expression outlet headers; 111 expression influent headers; 112 expression outlet headers; 113 expression intermediate headers; 180 ° of elbows of 114 expressions; 115 expression end headers; 201 expression metal heat absorption tubes; 202 expression absorber plates; 208 expression outer covers; 209 expression entrance house stewards; 210 expression outlet headers; 211 expression influent headers; 213 expression intermediate headers; 180 ° of elbows of 214 expressions; 215 expression outlet headers.
The specific embodiment
The below contrasts accompanying drawing, and the invention will be further described by embodiment.
Embodiment 1
To accompanying drawing 6, a kind of low radiant heat is escaped, accurate black window construction Fresnel solar energy heat collector, comprises some endothermic tubes 101, some absorber plates 102, header, entrance house steward 109, outlet header 110, outer cover 108 and transparent cover 107 with reference to accompanying drawing 1.Endothermic tube 101 adopts metal material to make, and absorber plate 102 is fixed on the endothermic tube 101.The two ends of endothermic tube 101 are connected to above the header, are connected perforation by header between endothermic tube 101 and the endothermic tube 101, between endothermic tube 101 and the entrance house steward 109 and between endothermic tube 101 and the outlet header 110, wherein:
Header comprises influent header 111, outlet header 112, intermediate header 113 and end header 115, have the hole that several are connected with endothermic tube 101 in influent header 111 1 sides, have a hole that is connected with entrance house steward 109 at influent header 111 opposite sides; Have the hole that several are connected with endothermic tube 101 in outlet header 112 1 sides, have a hole that is connected with outlet header 110 at outlet header 112 opposite sides; Have the hole that several are connected with endothermic tube 101 in intermediate header 113 1 sides; Have the hole that several are connected with endothermic tube 101 in end header 115 1 sides; Influent header 111 and outlet header 112 are at the same end of heat collector, one side of influent header 111 is connected connection with the entrance house steward, opposite side is connected connection with endothermic tube, fluid flows to influent header 111 from entrance house steward 109, flow to endothermic tube 101 after the mixing, a side of outlet header 112 is connected connection with the outlet header, and opposite side is connected connection with endothermic tube, fluid flows to outlet header 112 from endothermic tube 101, flows to outlet header 110 after the mixing; One side of intermediate header 113 is connected connection with endothermic tube, the end of intermediate header 113 be connected the end of intermediate header and connect by 180 ° of elbows 114; End header 115 is as the mixer of endothermic tube 101 inner fluids, a side be connected endothermic tube 101 and be connected, the direction of flow end header 115 in the endothermic tube 101 flows out from endothermic tube 101 after the 115 interior mixing of end header;
In the cavity of outer cover 108 inboards, be provided with to support the supporting traverse 103 of endothermic tube 101; Be provided with the support ring 106 of fixed support crossbeam 103 at outer cover 108, supporting traverse 103 is fixed on above the support ring 106, between supporting traverse 103 and the support ring 106 heat insulating mattress 105 is housed;
Opening part at outer cover 108 is provided with transparent cover 107.
Embodiment 2
With reference to accompanying drawing 7 to accompanying drawing 9, a kind of low radiant heat is escaped, accurate black window construction Fresnel solar energy heat collector, comprise some metal heat absorption tubes 201, some absorber plates 202, header, entrance house steward 209, outlet header 210, outer cover 208 and transparent cover, wherein: header comprises influent header 211, intermediate header 213 and outlet header 115, and influent header 211 and outlet header 115 lay respectively at the two ends of heat collector; Entrance house steward 209 is connected connection with influent header, metal heat absorption tube 201 is connected connection with influent header; Outlet header 210 is connected connection with outlet header, metal heat absorption tube 201 is connected connection with outlet header.All the other structures are identical with embodiment 1.
Claims (10)
1. one kind low radiant heat is escaped, accurate black window construction Fresnel solar energy heat collector, it is characterized in that this Fresnel solar energy heat collector comprises some endothermic tubes, some absorber plates, header, the entrance house steward, the outlet header, outer cover and transparent cover, absorber plate is connected to above the endothermic tube, the two ends of endothermic tube are connected to above the header, between endothermic tube and the endothermic tube, be connected perforation by header between endothermic tube and the entrance house steward and between endothermic tube and the outlet header, outer cover is the concave shape structure, the inboard of outer cover is a cavity, endothermic tube, absorber plate and header are installed in the cavity of outer cover inboard, and the opening part of outer cover is provided with transparent cover.
2. low radiant heat escape according to claim 1, standard are deceived window construction Fresnel solar energy heat collector, it is characterized in that outer cover is comprised of housing case and heat-insulating heat-preserving material, housing case is folder dead level structure, and heat-insulating heat-preserving material is filled in the folder dead level of housing case.
3. low radiant heat escape according to claim 1 and 2, accurate black window construction Fresnel solar energy heat collector is characterized in that the opening down setting of outer cover.
4. low radiant heat escape according to claim 1 and 2, standard are deceived window construction Fresnel solar energy heat collector, it is characterized in that in the cavity of outer cover inboard, being provided with to support the supporting traverse of endothermic tube, be provided with the support ring of fixed support crossbeam at outer cover, supporting traverse is fixed on above the support ring, between supporting traverse and the support ring heat insulating mattress is housed.
5. low radiant heat escape according to claim 1 and 2, accurate black window construction Fresnel solar energy heat collector is characterized in that endothermic tube adopts metal material to make.
6. low radiant heat escape according to claim 1 and 2, accurate black window construction Fresnel solar energy heat collector is characterized in that header comprises influent header, outlet header, intermediate header and end header.
7. low radiant heat escape according to claim 6, standard are deceived window construction Fresnel solar energy heat collector, it is characterized in that having the hole that several are connected with endothermic tube in influent header one side, have a hole that is connected with the entrance house steward at the influent header opposite side.
8. low radiant heat escape according to claim 6, standard are deceived window construction Fresnel solar energy heat collector, it is characterized in that having the hole that several are connected with endothermic tube in outlet header one side, have a hole that is connected with the outlet header at the outlet header opposite side.
9. low radiant heat escape according to claim 6, accurate black window construction Fresnel solar energy heat collector is characterized in that having the hole that several are connected with endothermic tube in intermediate header one side.
10. low radiant heat escape according to claim 6, accurate black window construction Fresnel solar energy heat collector is characterized in that having the hole that several are connected with endothermic tube in end header one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102456062A CN102878688A (en) | 2012-07-16 | 2012-07-16 | Fresnel solar thermal collector with low radiant thermal runaway and quasi black window structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102456062A CN102878688A (en) | 2012-07-16 | 2012-07-16 | Fresnel solar thermal collector with low radiant thermal runaway and quasi black window structure |
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| CN102878688A true CN102878688A (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102456062A Pending CN102878688A (en) | 2012-07-16 | 2012-07-16 | Fresnel solar thermal collector with low radiant thermal runaway and quasi black window structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167936A (en) * | 1977-08-08 | 1979-09-18 | Hackworth Albert J | Static solar tracker and energy converter |
| JPS55158443A (en) * | 1979-05-28 | 1980-12-09 | Hitachi Ltd | Solar heat collector |
| US4286580A (en) * | 1979-06-11 | 1981-09-01 | Elmo Sitnam | Solar collector |
| CN101836054A (en) * | 2007-08-27 | 2010-09-15 | 奥斯拉公司 | Linear fresnel solar arrays and parts thereof |
| CN202853134U (en) * | 2012-07-16 | 2013-04-03 | 金华金大光能科技有限公司 | Low-radiation heat-escape and standard block window structure fresnel solar thermal collector |
-
2012
- 2012-07-16 CN CN2012102456062A patent/CN102878688A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167936A (en) * | 1977-08-08 | 1979-09-18 | Hackworth Albert J | Static solar tracker and energy converter |
| JPS55158443A (en) * | 1979-05-28 | 1980-12-09 | Hitachi Ltd | Solar heat collector |
| US4286580A (en) * | 1979-06-11 | 1981-09-01 | Elmo Sitnam | Solar collector |
| CN101836054A (en) * | 2007-08-27 | 2010-09-15 | 奥斯拉公司 | Linear fresnel solar arrays and parts thereof |
| CN202853134U (en) * | 2012-07-16 | 2013-04-03 | 金华金大光能科技有限公司 | Low-radiation heat-escape and standard block window structure fresnel solar thermal collector |
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Application publication date: 20130116 |