CN110454993A - A kind of optically focused plate-type collector and heat collecting method - Google Patents
A kind of optically focused plate-type collector and heat collecting method Download PDFInfo
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- CN110454993A CN110454993A CN201910663711.XA CN201910663711A CN110454993A CN 110454993 A CN110454993 A CN 110454993A CN 201910663711 A CN201910663711 A CN 201910663711A CN 110454993 A CN110454993 A CN 110454993A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 126
- 229910052751 metal Inorganic materials 0.000 claims abstract description 126
- 238000009423 ventilation Methods 0.000 claims abstract description 63
- 239000011521 glass Substances 0.000 claims abstract description 26
- 238000009825 accumulation Methods 0.000 claims abstract description 19
- 230000009471 action Effects 0.000 claims abstract description 14
- 238000003491 array Methods 0.000 claims abstract description 8
- 238000005286 illumination Methods 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 7
- 239000010931 gold Substances 0.000 claims description 7
- 229910052737 gold Inorganic materials 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 238000005338 heat storage Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000006096 absorbing agent Substances 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 230000005855 radiation Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000002048 anodisation reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/80—Arrangements for controlling solar heat collectors for controlling collection or absorption of solar radiation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/10—Details of absorbing elements characterised by the absorbing material
- F24S70/12—Details of absorbing elements characterised by the absorbing material made of metallic material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S90/00—Solar heat systems not otherwise provided for
- F24S90/10—Solar heat systems not otherwise provided for using thermosiphonic circulation
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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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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of optically focused plate-type collector and heat collecting methods, are related to solar energy utilization technique field, and optically focused plate-type collector includes glass plate, metal net shaped component, insulating layer, shell, the first ventilation opening, the second ventilation opening, solar panel and roller bearing；Glass plate is placed on the enclosed cavity top of shell, is tightly connected with shell；At least two metal net shaped component laminated arrays are connected to cavity inside, have heat accumulation and limitation convection action；Insulating layer connection is located on the inner wall of shell；First ventilation opening is opened on the first side wall of shell, and the second ventilation opening is opened in the second sidewall opposite with the first side wall of shell, the first ventilation opening and the non-coaxial setting that is staggered of the second ventilation opening；Solar panel is rotatably coupled to side wall of outer shell top by roller bearing, is rotated for the variation according to light angle to realize optically focused.The present invention has the advantages that photothermal conversion efficiency is high, heat storage capacity is strong.
Description
Technical field
The present invention relates to solar energy utilization technique fields, and in particular to a kind of optically focused plate-type collector and heat collecting method.
Background technique
Solar energy is a kind of reproducible new energy, it has environmental protection, permanent advantage, is that reply energy shortage weather becomes
One of the important selection changed, increasingly by the strong interest of common people.Solar utilization technique refers mainly to solar energy and is converted to heat
The technologies such as energy, mechanical energy, electric energy, chemical energy, wherein solar energy is most remote to thermal energy conversion history, exploitation is most universal, referred to as
Solar thermal utilization.
More universal flat type solar heat collector at present, absorber are absorber plates, the material of absorber plate have metal,
Plastics, rubber, ceramics etc., structure has comb and collector, in order to increase the effect for absorbing solar energy, has coating on absorber plate, applies
Layer is divided into non-selective coating and selective coating, and the processing technology of coating has vacuum coating, anodization plated film etc..
The coating material of absorber plate plays a very important role to solar radiation energy is absorbed.Because of the wavelength of solar radiation
It is concentrated mainly in the range of 0.3-2.5um, and the heat radiation of absorber plate is then concentrated mainly in the wave-length coverage of 2-20um,
Enhance absorber plate to the absorbability of solar radiation, reduce heat loss again, reduce the heat radiation of absorber plate, it is necessary to using choosing
Selecting property coating.Selective coating is that have higher absorption rate to solar shortwave radiation, and lower to long-wave radiation emissivity
A kind of coating, the method that current factory both domestic and external mostly uses greatly magnetron sputtering make selective coating, can reach absorptivity
0.93-0.95, emissivity 0.12-0.04, substantially increases heat absorption capacity.
But these technological means despite the use of, but flat type solar heat collector still can not overcome endotherm area
It is smaller, the larger problem of heat loss.Endotherm area is limited, the volumetric constraint of the heat collector area of absorber plate, and then limits
Endotherm area, and the volume of solar thermal collector cannot infinitely increase.Although selective coating has been used to improve absorber plate
Heat absorption efficiency, but when absorb heat plate temperature increase after, heat loss also will increase, can only by improve insulation layer material,
Or it thickeies glass cover-plate and adds the means such as transparent honeycomb to reduce heat waste.Therefore, photothermal conversion efficiency is by heat absorption plate
Material and structure are affected, and in order to improve transfer efficiency, can only select expensive material and complicated mechanism, processing cost is very
Height, difficulty of processing are very big.
Summary of the invention
Therefore, technical problems to be solved of the embodiment of the present invention are heat collector photothermal conversion efficiency in the prior art
It is low.
For this purpose, a kind of optically focused plate-type collector of the embodiment of the present invention, comprising: glass plate, metal net shaped component, heat preservation
Layer, shell, the first ventilation opening, the second ventilation opening, solar panel and roller bearing；
Glass plate is placed on the enclosed cavity top of shell, is tightly connected with shell；
At least two metal net shaped component laminated arrays are connected to cavity inside, have heat accumulation and limitation convection action；
Insulating layer connection is located on the inner wall of shell；
First ventilation opening is opened on the first side wall of shell, and the second ventilation opening is opened in the opposite with the first side wall of shell
Second sidewall on, the first ventilation opening and the non-coaxial setting that is staggered of the second ventilation opening；
Solar panel is rotatably coupled to side wall of outer shell top by roller bearing, for being turned according to the variation of light angle
It moves to realize optically focused.
Preferably, the metal net shaped component is steel wire.
Preferably, the silk thread of the steel wire is hollow tube, and hollow tube is filled with heat absorption liquid.
A kind of optically focused plate-type collector of the embodiment of the present invention, comprising: glass plate, metal net shaped component, insulating layer, outer
Shell, the first ventilation opening, the second ventilation opening, solar panel and roller bearing；
Glass plate is placed on the enclosed cavity top of shell, is tightly connected with shell；
At least two metal net shaped component laminated arrays are connected to cavity inside, have adjustable heat accumulation and limitation convection current
Effect；
Insulating layer connection is located on the inner wall of shell；
First ventilation opening is opened on the first side wall of shell, and the second ventilation opening is opened in the opposite with the first side wall of shell
Second sidewall on, the first ventilation opening and the non-coaxial setting that is staggered of the second ventilation opening；
Solar panel is rotatably coupled to side wall of outer shell top by roller bearing, for being turned according to the variation of light angle
It moves to realize optically focused.
Preferably, the metal net shaped component includes the first metal tube sheets and the second metal tube sheets；
First metal tube sheets and the second metal tube sheets include metal tube arranged in parallel, metal tubular arranged in parallel at
Plate, metal tube have pipe lid, are rotatably connected between pipe lid and metal tube tube wall by shaft, for according to illumination and temperature
Variation adjust heat accumulation and limitation convection action；
First metal tube sheets and the alternately laminated arrangement of the second metal tube sheets, the metal tube orientation of adjacent tube sheet are mutually handed over
Fork is vertical.
Preferably, the metal net shaped component includes the sheet metal and transmission mechanism in reticular structure；
One end of sheet metal is connect with transmission mechanism, is moved under the drive of transmission mechanism, for according to illumination and
The variation of temperature adjusts heat accumulation and limitation convection action.
A kind of heat collecting method of optically focused plate-type collector of the embodiment of the present invention, comprising the following steps:
S1, solar panel adjust in real time with the variation of light angle turns to predeterminated position, and first layer metal reticular component is inhaled
Receive the light heat come through glass plate irradiation；
Metal net shaped component more than S2, the second layer is absorbed through the next light heat of glass plate irradiation and through upper layer gold
Belong to the light heat that the hole irradiation of reticular component comes；
It is discharged after S3, interior of shell gas are heated from the first ventilation opening or the second ventilation opening.
Preferably, further comprising the steps of:
S4, when illumination is weaker and/or temperature is lower, pipe lid close on metal tube, make the hole of metal net shaped component
It is larger；
S5, when illumination is relatively strong and/or temperature is higher, pipe lid, which rotates around the axis, opens certain angle, makes metal net shaped structure
The hole of part is smaller.
Preferably, further comprising the steps of:
S6, when illumination is weaker and/or temperature is lower, transmission mechanism drives sheet metal mobile, makes at least two metal meshes
The hole arranged in co-axial alignment of shape component；
S7, when illumination is relatively strong and/or temperature is higher, transmission mechanism drives sheet metal mobile, makes at least two metal meshes
The non-coaxial arrangement that is staggered of the hole of shape component.
The technical solution of the embodiment of the present invention, has the advantages that
Optically focused plate-type collector provided in an embodiment of the present invention increases by the way that metal net shaped component is arranged and absorbs heat energy
Power, and there is stable or adjustable heat accumulation and limitation convection action, greatly improve photothermal conversion efficiency.And device
Structure is simple, reliable operation, cost is relatively low.
Detailed description of the invention
In order to illustrate more clearly of the technical solution in the specific embodiment of the invention, specific embodiment will be retouched below
Attached drawing needed in stating is briefly described, it should be apparent that, the accompanying drawings in the following description is some realities of the invention
Mode is applied, it for those of ordinary skill in the art, without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the three dimensional structure diagram of a specific example of optically focused plate-type collector in the embodiment of the present invention 1；
Fig. 2 is the front view of the optically focused plate-type collector of Fig. 1；
Fig. 3 is the structural schematic diagram of a specific example of metal net shaped component in the embodiment of the present invention 2；
Fig. 4 is the side view of the metal net shaped component of Fig. 3；
Fig. 5 is the structural schematic diagram of a specific example of metal net shaped component in the embodiment of the present invention 3；
Fig. 6 is the flow chart of a specific example of heat collecting method in the embodiment of the present invention 4.
Appended drawing reference: 1- glass plate, the metal net shaped component of 2-, the first metal tube sheets of 21-, 211- metal tube, 212- pipe lid,
213- shaft, the second metal tube sheets of 22-, 23- sheet metal, 24- transmission mechanism, 3- insulating layer, 4- shell, the first ventilation opening of 5-,
The second ventilation opening of 6-, 7- solar panel, 8- roller bearing.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the term as used herein is only used for the mesh of description specific embodiment
, and it is not intended to limit the present invention.Unless clearly indicated by the context, otherwise singular " one " as used herein,
The intentions such as "one" and "the" also include plural form.When using terms such as " include " and or " include ", it is intended to illustrate exist
This feature, integer, step, operation, element and/or component, and it is not excluded for one or more other features, integer, step, behaviour
Work, element, component, and/or other presence or increase for combining.Term "and/or" includes that one or more correlations list project
Any and all combinations.The instruction such as term " center ", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outside"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.Term " first ", " second " are used for description purposes only, and should not be understood as indicating
Or imply relative importance.Term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected,
It can be and be detachably connected, or be integrally connected；It can be directly connected, can also may be used also indirectly connected through an intermediary
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Embodiment 1
The present embodiment provides a kind of optically focused plate-type collectors, as depicted in figs. 1 and 2, comprising: glass plate 1, metal net shaped structure
Part 2, insulating layer 3, shell 4, the first ventilation opening 5, the second ventilation opening 6, solar panel 7 and roller bearing 8.Glass plate 1 is placed on shell 4 and is enclosed
Cavity top is tightly connected with shell 4.Preferably, glass plate 1 selects double glazing unit, plays better function of heat insulation.
At least two metal net shaped 2 laminated arrays of component are connected to cavity inside, have heat accumulation and limitation convection action.In Fig. 1 and Fig. 2
Showing tool, there are three metal net shaped components 2, but are not limited to three, are also possible to two, four, five etc., as long as shell
It is more multiple to improve the thermal efficiency that inner space allows can choose setting.The end of metal net shaped component 2 is connected to insulating layer 3
On.The connection of insulating layer 3 is located on the inner wall of shell 4, plays the role of insulation.First ventilation opening 5 is opened in the of shell 4
In one side wall, the second ventilation opening 6 is opened in the second sidewall opposite with the first side wall of shell 4, as depicted in figs. 1 and 2, the
One ventilation opening 5 is located on the right side of 4 antetheca of shell, and the second ventilation opening 6 is located on the left of 4 rear wall of shell, and be staggered setting, the first ventilation opening
5 and the non-coaxial setting that is staggered of the second ventilation opening 6, to reduce gaseous exchange, heat loss is reduced, improves heat storage capacity.Preferably, make
For import ventilation opening (such as first ventilation opening 5) be set to it is upper, the ventilation opening (such as second ventilation opening 6) as outlet is set
In lower, to be conducive to be expelled directly out after gas is heated from top to bottom.Solar panel 7 is rotatably coupled to by roller bearing 8
4 side wall upper part of shell, is rotated for the variation according to light angle to realize optically focused.As depicted in figs. 1 and 2, Zuo Juguang
Plate is rotatably connected on 4 left side wall top of shell, and right solar panel is rotatably connected on 4 right side wall top of shell.
The working principle of above-mentioned optically focused plate-type collector are as follows: when early morning, left solar panel is packed up (in figure not by the effect of roller bearing 8
Show), right solar panel is acted on by roller bearing 8 and erects (as shown in Figure 1), since sunlit incidence angle angle is larger, light master
It to be acted on by right solar panel incident；As angle of incidence of sunlight degree is gradually reduced, when to high noon, two sides solar panel is all packed up, light
Line is directly incident；When the dusk, left solar panel is erected, and right solar panel is packed up, and light is mainly acted on by left solar panel incident.Light
(such as sunlight) is irradiated on first layer metal reticular component 2 through glass plate 1, and metal net shaped component 2 absorbs heat, temperature liter
Height, due to there is hole between metal net shaped component 2, light passes through hole and is radiated at second layer metal reticular component, third layer gold
Belong on reticular component etc., with the continuous increase of amount of radiation, the heat for being transmitted to downside is discharged by ventilation opening.
Preferably, metal net shaped component 2 is steel wire.
Preferably, the silk thread of steel wire is hollow tube, and hollow tube is filled with heat absorption liquid, the heat accumulation energy of heat absorption liquid
Power is better than steel wire itself, to further improve photothermal conversion efficiency and heat storage capacity.
Above-mentioned optically focused plate-type collector increases the heat ability that absorbs, and have and stablize by the way that metal net shaped component is arranged
Heat accumulation and limitation convection action, greatly improve photothermal conversion efficiency.And device architecture is simple, reliable operation, cost
It is lower.
Embodiment 2
The present embodiment provides a kind of optically focused plate-type collectors, comprising: glass plate 1, metal net shaped component 2, insulating layer 3, outer
Shell 4, the first ventilation opening 5, the second ventilation opening 6, solar panel 7 and roller bearing 8.Glass plate 1 is placed on the enclosed cavity top of shell 4, and outer
Shell 4 is tightly connected.At least two metal net shaped 2 laminated arrays of component are connected to cavity inside, have adjustable heat accumulation and limit
Convection action processed.The connection of insulating layer 3 is located on the inner wall of shell 4.First ventilation opening 5 is opened on the first side wall of shell 4, the
Two ventilation openings 6 are opened in the second sidewall opposite with the first side wall of shell 4, and the first ventilation opening 5 and the second ventilation opening 6 are non-same
Axis is staggered setting；Solar panel 7 is rotatably coupled to 4 side wall upper part of shell by roller bearing 8, for the variation according to light angle
It is rotated to realize optically focused.
With embodiment 1 the difference is that there is at least two metal net shaped components 2 adjustable heat accumulation and limitation convection current to make
With.
Preferably, as shown in Figure 3 and Figure 4, metal net shaped component 2 includes the first metal tube sheets 21 and the second metal tube sheets
22.First metal tube sheets 21 and the second metal tube sheets 22 include metal tube 211 arranged in parallel, metal tube arranged in parallel
211 form plate, and the cross section of metal tube 211 can be circle, square, rectangle, trapezoidal etc., and metal tube 211 has pipe lid
212, it is rotatably connected between 211 tube wall of pipe lid 212 and metal tube by shaft, for being adjusted according to the variation of illumination and temperature
Heat accumulation and limitation convection action.First metal tube sheets 21 and the alternately laminated arrangement of the second metal tube sheets 22, the metal of adjacent tube sheet
Pipe orientation intersects or vertically.
When work, when in the morning or, illumination is weaker the dusk time-division, when temperature is lower, pipe lid 212 is closed in metal tube 211
On, keep the hole between metal tube 211 larger, improves the ability that light is transmitted down, the equal energy of metal net shaped component of upper and lower level
Sufficient light irradiation is obtained, photothermal conversion efficiency is improved.
When time-division, illumination enhance at noon, when temperature increases, with gradually increasing for illumination, temperature is gradually increased, pipe
Lid 212 gradually can slowly be opened (this opening procedure does not stop in opening procedure as continuous process) or every using around the shaft 213
It is secondary be opened to predetermined angle after stay for some time, until open to close when angle be in 180 °, predetermined angle is according to reality
Border intensity of illumination and temperature setting, make the hole between metal tube 211 gradually be blocked and reduce, reduce by 4 internal gas of shell
Heat convection between hole, by gas control among metal net shaped component, to inhibit gas free convection heat waste
It loses, improves heat storage capacity.
Embodiment 3
The present embodiment provides a kind of optically focused plate-type collectors, comprising: glass plate 1, metal net shaped component 2, insulating layer 3, outer
Shell 4, the first ventilation opening 5, the second ventilation opening 6, solar panel 7 and roller bearing 8.Glass plate 1 is placed on the enclosed cavity top of shell 4, and outer
Shell 4 is tightly connected.At least two metal net shaped 2 laminated arrays of component are connected to cavity inside, have adjustable heat accumulation and limit
Convection action processed.The connection of insulating layer 3 is located on the inner wall of shell 4.First ventilation opening 5 is opened on the first side wall of shell 4, the
Two ventilation openings 6 are opened in the second sidewall opposite with the first side wall of shell 4, and the first ventilation opening 5 and the second ventilation opening 6 are non-same
Axis is staggered setting；Solar panel 7 is rotatably coupled to 4 side wall upper part of shell by roller bearing 8, for the variation according to light angle
It is rotated to realize optically focused.
With embodiment 1 the difference is that there is at least two metal net shaped components 2 adjustable heat accumulation and limitation convection current to make
With.
Preferably, as shown in figure 5, metal net shaped component 2 includes the sheet metal 23 and transmission mechanism 24 in reticular structure.Gold
The one end for belonging to piece 23 is connect with transmission mechanism 24, is moved under the drive of transmission mechanism 24, for according to illumination and temperature
Variation adjust heat accumulation and limitation convection action.The rib of sheet metal 23 has certain width, compared to steel wire, endotherm area
Bigger, heat absorption heat storage capacity is stronger.Preferably, transmission mechanism is gear and rack gear, and the lower part of sheet metal 23 has
Rack structure is meshed with gear and connect, and gear rotation drives sheet metal to move left and right.
When work, when in the morning or, illumination is weaker the dusk time-division, when temperature is lower, transmission mechanism 24 drives sheet metal 23
It is mobile, make the hole arranged in co-axial alignment of at least two layers sheet metal 23 in reticular structure, keeps the blocking to light smaller, can make more
Light be transmitted to lower layer, improve the ability that light is transmitted down, the metal net shaped component of upper and lower level can obtain sufficient light
Line irradiation, improves photothermal conversion efficiency.
When time-division, illumination enhance at noon, when temperature increases, with gradually increasing for illumination, temperature is gradually increased, and is passed
Motivation structure 24 drives 23 left/right of sheet metal mobile, makes to be staggered in the sheet metal 23 or so of reticular structure at least two layers, hole by
It is gradually blocked and reduces, reduce heat convection of 4 internal gas of shell between hole, gas is controlled in metal net shaped component
Among, to inhibit gas free convection heat loss, improve heat storage capacity.
Embodiment 4
The present embodiment provides a kind of heat collecting methods of optically focused plate-type collector, as shown in Figure 6, comprising the following steps:
S1, solar panel 7 adjust in real time with the variation of light angle turns to predeterminated position, first layer metal reticular component 2
Absorb the light heat come through the irradiation of glass plate 1.Preferably, it when early morning, controls left solar panel rotation and withdraws, right solar panel turns
Dynamic to erect, noon controls left and right solar panel and rotates withdrawals, and when the dusk, left solar panel rotation is erected, and right solar panel rotates
It withdraws.
Metal net shaped component 2 more than S2, the second layer absorbs through the next light heat of the irradiation of glass plate 1 and penetrates upper layer
The light heat that the hole irradiation of metal net shaped component 2 comes.
It is discharged after S3,4 internal gas of shell are heated from the first ventilation opening 5 or the second ventilation opening 6.
Preferably, further comprising the steps of:
S4, when illumination is weaker and/or temperature is lower, pipe lid 212 close on metal tube 211, make metal net shaped component 2
Hole it is larger, improve the ability that is transmitted down of light, the metal net shaped component of upper and lower level can obtain sufficient light irradiation,
Improve photothermal conversion efficiency.
S5, when illumination is relatively strong and/or temperature is higher, the 213 rotating opening certain angle around the shaft of pipe lid 212 makes metal
The hole of reticular component 2 is smaller, reduces the heat convection of 4 internal gas of shell within the cleft, gas is controlled in metal mesh
Among shape component, to inhibit gas free convection heat loss, heat storage capacity is improved.
Or preferably, further comprising the steps of:
S6, when illumination is weaker and/or temperature is lower, transmission mechanism 24 drives sheet metal 23 mobile, makes at least two gold medals
The hole arranged in co-axial alignment for belonging to reticular component 2, keeps the blocking to light smaller, and more light can be made to be transmitted to lower layer, improves light
The ability that line is transmitted down, the metal net shaped component of upper and lower level can obtain sufficient light irradiation, improve photothermal conversion efficiency.
S7, when illumination is relatively strong and/or temperature is higher, transmission mechanism 24 drives sheet metal 23 mobile, makes at least two gold medals
Belong to the non-coaxial arrangement that is staggered of hole of reticular component 2, gap reduces, and reduces the convection current of 4 internal gas of shell within the cleft and changes
Heat, to inhibit gas free convection heat loss, improves heat storage capacity by gas control among metal net shaped component.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (9)
1. a kind of optically focused plate-type collector characterized by comprising glass plate (1), metal net shaped component (2), insulating layer (3),
Shell (4), the first ventilation opening (5), the second ventilation opening (6), solar panel (7) and roller bearing (8)；
Glass plate (1) is placed on the enclosed cavity top of shell (4), is tightly connected with shell (4)；
At least two metal net shaped component (2) laminated arrays are connected to cavity inside, have heat accumulation and limitation convection action；
Insulating layer (3) connection is located on the inner wall of shell (4)；
First ventilation opening (5) is opened on the first side wall of shell (4), the second ventilation opening (6) be opened in shell (4) with first
In the opposite second sidewall of side wall, the first ventilation opening (5) and the non-coaxial setting that is staggered of the second ventilation opening (6)；
Solar panel (7) is rotatably coupled to shell (4) side wall upper part by roller bearing (8), for the variation according to light angle
It is rotated to realize optically focused.
2. optically focused plate-type collector according to claim 1, which is characterized in that the metal net shaped component (2) is steel wire
Net.
3. optically focused plate-type collector according to claim 2, which is characterized in that the silk thread of the steel wire is hollow tube,
Hollow tube is filled with heat absorption liquid.
4. a kind of optically focused plate-type collector characterized by comprising glass plate (1), metal net shaped component (2), insulating layer (3),
Shell (4), the first ventilation opening (5), the second ventilation opening (6), solar panel (7) and roller bearing (8)；
Glass plate (1) is placed on the enclosed cavity top of shell (4), is tightly connected with shell (4)；
At least two metal net shaped component (2) laminated arrays are connected to cavity inside, have adjustable heat accumulation and limitation convection current
Effect；
Insulating layer (3) connection is located on the inner wall of shell (4)；
First ventilation opening (5) is opened on the first side wall of shell (4), the second ventilation opening (6) be opened in shell (4) with first
In the opposite second sidewall of side wall, the first ventilation opening (5) and the non-coaxial setting that is staggered of the second ventilation opening (6)；
Solar panel (7) is rotatably coupled to shell (4) side wall upper part by roller bearing (8), for the variation according to light angle
It is rotated to realize optically focused.
5. optically focused plate-type collector according to claim 4, which is characterized in that the metal net shaped component (2) includes the
One metal tube sheets (21) and the second metal tube sheets (22)；
First metal tube sheets (21) and the second metal tube sheets (22) include metal tube (211) arranged in parallel, arranged in parallel
Metal tube (211) forms plate, and metal tube (211) has pipe lid (212), leads between pipe lid (212) and metal tube (211) tube wall
It crosses shaft to be rotatably connected, for adjusting heat accumulation and limitation convection action according to the variation of illumination and temperature；
First metal tube sheets (21) and the second metal tube sheets (22) alternately laminated arrangement, the metal tube orientation phase of adjacent tube sheet
Mutually intersect or vertical.
6. optically focused plate-type collector according to claim 4, which is characterized in that the metal net shaped component (2) includes being in
The sheet metal (23) and transmission mechanism (24) of reticular structure；
One end of sheet metal (23) is connect with transmission mechanism (24), is moved under the drive of transmission mechanism (24), and root is used for
Heat accumulation and limitation convection action are adjusted according to illumination and the variation of temperature.
7. a kind of heat collecting method of optically focused plate-type collector, which comprises the following steps:
S1, solar panel (7) adjust in real time with the variation of light angle turns to predeterminated position, first layer metal reticular component (2)
Absorb the light heat come through glass plate (1) irradiation；
Metal net shaped component (2) more than S2, the second layer absorbs through the next light heat of glass plate (1) irradiation and penetrates upper layer
The light heat that the hole irradiation of metal net shaped component (2) comes；
It is discharged after S3, shell (4) internal gas are heated from the first ventilation opening (5) or the second ventilation opening (6).
8. heat collecting method according to claim 7, which is characterized in that further comprising the steps of:
S4, when illumination is weaker and/or temperature is lower, pipe lid (212) close on metal tube (211), make metal net shaped component
(2) hole is larger；
S5, when illumination is relatively strong and/or temperature is higher, pipe lid (212) (213) rotating opening certain angle around the shaft makes metal
The hole of reticular component (2) is smaller.
9. heat collecting method according to claim 7, which is characterized in that further comprising the steps of:
S6, when illumination is weaker and/or temperature is lower, transmission mechanism (24) drives sheet metal (23) mobile, makes at least two gold medals
Belong to the hole arranged in co-axial alignment of reticular component (2)；
S7, when illumination is relatively strong and/or temperature is higher, transmission mechanism (24) drives sheet metal (23) mobile, makes at least two gold medals
Belong to the non-coaxial arrangement that is staggered of hole of reticular component (2).
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| KR20020047766A (en) * | 2000-12-14 | 2002-06-22 | 손재익 | Plat type of solar absorber system comprising a transparent insulator |
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