CN105042898B - A kind of tube-sheet type solar energy collector system of caliber change - Google Patents
A kind of tube-sheet type solar energy collector system of caliber change Download PDFInfo
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- CN105042898B CN105042898B CN201510414397.3A CN201510414397A CN105042898B CN 105042898 B CN105042898 B CN 105042898B CN 201510414397 A CN201510414397 A CN 201510414397A CN 105042898 B CN105042898 B CN 105042898B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
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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 provides a kind of solar energy collector system, including thermal-collecting tube, reflecting mirror and collecting plate, connected by collecting plate between two adjacent thermal-collecting tubes, so that forming tube plate structure between multiple thermal-collecting tube and adjacent collecting plate；Described tube plate structure parabolically shape structure or arc-shaped structure, the bending direction of described parabola or circular arc is contrary with the parabolic structure of reflecting mirror, the focus of tube plate structure and the focus of reflecting mirror are on a point, extending to both sides in the middle part of tube plate structure, the thermal-collecting tube caliber of tube plate structure is more and more less.The present invention can make full use of solar energy, it is to avoid the loss of solar heat, reaches the effect of uniform heat collection.
Description
Technical field
The invention belongs to field of solar energy, particularly relate to a kind of solar energy collector system.
Background technology
Along with the high speed development of modern social economy, the mankind are increasing to the demand of the energy.But the traditional energy storage levels such as coal, oil, natural gas constantly reduce, the most in short supply, cause rising steadily of price, the problem of environmental pollution that conventional fossil fuel causes simultaneously is the most serious, these development that the most significantly limit society and the raising of human life quality.Energy problem has become as one of distinct issues of contemporary world.Thus seek the new energy, the most free of contamination clean energy resource has become the focus of present people research.
Solar energy is a kind of inexhaustible clean energy resource, and stock number is huge, and the solar radiant energy total amount that earth surface is received every year is 1 × 1018KW h, for more than 10,000 times of world's year consumption gross energy.Countries in the world the most utilizing as important of new energy development using solar energy, the Chinese government the most clearly proposes actively to develop new forms of energy at Report on the Work of the Government, and wherein the utilization of solar energy is especially in occupation of prominent position.Arriving tellurian energy density little (about a kilowatt every square metre) yet with solar radiation, and be again discontinuous, this brings certain difficulty to large-scale exploitation.Therefore, in order to extensively utilize solar energy, not only to solve technical problem, and must be able to same conventional energy resource economically and compete mutually.
The solar energy of solar thermal collector absorption may produce surplus the most in some cases, and now this part solar energy may lose, it is therefore desirable to a kind of heat to surplus makes full use of.
No matter which kind of form and the solar thermal collector of structure, will have one to play an important role the absorption of solar energy for the absorption piece absorbing solar radiation, the structure of heat collector.
Summary of the invention
The technical problem to be solved is to provide a kind of new solar energy collector system, thus effectively utilizes solar energy.
To achieve these goals, technical scheme is as follows: a kind of solar energy collector system, including thermal-collecting tube, reflecting mirror and collecting plate, connected by collecting plate between two adjacent thermal-collecting tubes, so that forming tube plate structure between multiple thermal-collecting tube and adjacent collecting plate；Described tube plate structure parabolically shape structure or arc-shaped structure, the bending direction of described parabola or circular arc is contrary with the parabolic structure of reflecting mirror, and the focus of tube plate structure and the focus of reflecting mirror are on a point.
Being provided for the projection of augmentation of heat transfer on the lower wall surface that tube plate structure is relative with reflecting mirror, to strengthen the absorption to solar energy, extend to both sides in the middle part of tube plate structure, the height of projection of the lower wall surface of tube plate structure is more and more lower.
Being provided for the projection of augmentation of heat transfer on the lower wall surface that tube plate structure is relative with reflecting mirror, to strengthen the absorption to solar energy, extend to both sides in the middle part of tube plate structure, the density of protrusions of the lower wall surface of tube plate structure is more and more lower.
Tube plate structure surface coating heat-sink shell, described heat-sink shell outwards includes infrared reflection coating, heat absorbing coating and antireflection coatings in thermal-collecting tube successively, and wherein that the thickness of infrared reflection coating, heat absorbing coating and antireflection coatings is 0.17um, 0.65um, 0.15um respectively；Described infrared reflection coating is from inside to outside Cu, Ag two-layer, and the thickness proportion of two-layer is 11:5；Heat absorbing coating includes NbN, TiAl, Cr the most successively2O3Three layers, the thickness proportion of three layers is 10:3:4；Antireflection coatings is Nb the most successively2O5, Al2O3, SiO2And Si3N4Four layers, wherein the thickness proportion of four layers is 5:4:4:2.
Extending to both sides in the middle part of tube plate structure, the caliber of thermal-collecting tube can be more and more less.
Extending to both sides in the middle part of tube plate structure, the width connecting collecting plate between two thermal-collecting tubes is increasing.
Solar energy collector system, also include the radiator being connected with heat collector by pipeline, radiator includes upper header and lower collector pipe and is positioned at the finned tube of lower collector pipe, described finned tube is cylindricality finned tube, described finned tube includes the cuboid being positioned at center and is positioned at the fins set that cuboid is peripheral, the cross section of described cuboid is square, from cross section, described fins set includes from four outward extending main fins in foursquare diagonal angle with from the secondary fin of main fin outward extending first, described fins set also includes the outward extending second secondary fin from foursquare four limits, the secondary fin of extend to same direction the first of described same main fin is parallel to each other, and fin secondary with second extended to same direction is parallel to each other, the end that described main fin and secondary fin extend forms equilateral octagon.
Angle between described first secondary fin and main fin is 45 °, and the distance of described adjacent secondary fin is L1, and the described foursquare length of side is L0, and the height of described main fin is L2, and the relation of above-mentioned three meets equation below:
L1/L0=a*ln (L2/L0)+b, wherein ln is logarithmic function, 0.22 < a < 0.24,0.20 <b < 0.23,
40mm<=L0<=60mm,10mm<=L1<=25mm,55mm<=L2<=80mm;
0.2<L1/L0<0.42,1.2<L2/L0<2.0;0.03 < L1/H≤0.15,
The height of finned tube is H, 100mm < H < 300mm.
Described solar energy collector system, the temperature difference electricity generation device that pipeline is connected is carried out including with heat collector, temperature difference electricity generation device includes casing, heat pipe, thermo-electric generation sheet, thermo-electric generation sheet heat radiator, controller and accumulator, heat pipe is set in casing, one end of thermo-electric generation sheet is connected with heat pipe, the other end is connected with radiator, and thermo-electric generation sheet is connected with accumulator also by controller.
Described solar energy collector system includes temperature difference electricity generation device and radiator, first valve, second valve, 3rd valve, temperature sensor, described heat collector connects formation closed circuit with temperature difference electricity generation device, heat collector connects formation closed circuit with radiator, the pipeline at temperature difference electricity generation device and radiator place is in parallel, heat collector absorbs solar energy, water in heating heat collector, water after heating respectively enters temperature difference electricity generation device and radiator by outlet pipeline, temperature difference electricity generation device generates electricity, heat exchange is carried out in radiator, the water flowed out in temperature difference electricity generation device and in radiator carries out heat exchange in entering heat collector through water return pipeline.
Compared with prior art, present invention have the advantage that:
1) solar energy can be made full use of, it is to avoid the loss of solar heat, unnecessary solar energy is stored with the form of electric energy, in order to follow-up use.
2) provide a kind of new temperature difference electricity generation device, meet the demand of solar energy；
3) present invention passes through test of many times, obtains an optimum radiator optimum results, and is verified by test, thus demonstrates the accuracy of result.
4) pass through central controller, it is achieved valve is automatically controlled, thus realize effective utilization of solar energy.
5) by the parabolical shape of tube plate structure, optimum absorption solar energy is reached.
6) present invention carries out meticulous selection and experiment to material and the thickness of heat-sink shell, has reached the technique effect of best heat absorption.
7) structure of heat collector is reasonably designed, it is to avoid heat collector local temperature is overheated.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of solar energy collector system
Fig. 2 is the structural representation of temperature difference electricity generation device
Fig. 3 is fin tube structure schematic diagram
Fig. 4 is heat spreader structures schematic diagram
Fig. 5 is collector structure schematic diagram
Fig. 6 is the partial schematic diagram of the fin tube structure of Fig. 3
Fig. 7 is the side view of the finned tube of Fig. 3
Fig. 8 is the schematic diagram that adjacent fins pipe connects
Reference is as follows:
1 heat collector, 2 temperature difference electricity generation devices, 3 radiators, 4 valves, 5 valves, 6 temperature sensors, 7 temperature difference electricity generation device inlet tubes, 8 heat collector outlet pipelines, 9 cuboid base tubes, 10 base tubes, 11 main fins, 12 second secondary fins, 13 first secondary fins, 14 casings, 15 controllers, 16 radiator inlet pipes, 17 heat collector water return pipelines, 18 valves, 19 temperature sensors, 20 thermal-collecting tubes, 21 reflecting mirrors, 21 thermal-collecting tube lower wall surfaces, 22 collecting plates, 23 heat pipes, 24 thermo-electric generation sheets, 25 thermo-electric generation sheet heat radiators, 26 accumulator, 27 users.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in detail.
A kind of solar energy collector system, as shown in Figure 1, described system includes heat collector 1, temperature difference electricity generation device 2 and radiator 3, valve 4, valve 5, valve 18, temperature sensor 6, described heat collector 1 connects formation closed circuit with temperature difference electricity generation device 2, heat collector 1 connects formation closed circuit with radiator 3, the pipeline at temperature difference electricity generation device 2 and radiator 3 place is in parallel, heat collector 1 absorbs solar energy, water in heating heat collector 1, water after heating respectively enters temperature difference electricity generation device 2 and radiator 3 by outlet pipeline 8, temperature difference electricity generation device 2 generates electricity, heat exchange is carried out in radiator 3, the water flowed out in temperature difference electricity generation device 2 and in radiator 3 carries out heat exchange in entering heat collector 1 through water return pipeline 17.
In said system, while being generated electricity in temperature difference electricity generation device 2 by solar energy, it is possible to use radiator outwards dispels the heat.Certainly, radiator and temperature difference electricity generation device can with independent operating, or isolated operation one of them.
As shown in Figure 1, valve 4 is arranged on outlet pipe, for controlling entrance temperature difference electricity generation device 2 and total water yield of radiator 3, valve 5 is arranged on the position of the inlet tube 16 of the pipeline at radiator 3 place, for controlling to enter the flow of the water of radiator 3, valve 18 is arranged on the position of the inlet tube 7 of the pipeline at temperature difference electricity generation device 2 place, for controlling to enter the flow of the water of temperature difference electricity generation device 2, temperature sensor 6 is arranged on the position of the entrance of radiator 3, for measuring the temperature of the water entering radiator 3.Described system also includes that central controller, described central controller and valve 4, valve 5, valve 18, temperature sensor 6 carry out data cube computation.
Preferably, when the temperature that temperature sensor 6 is measured is less than certain temperature when, central controller controls valve 5 strengthens aperture, controls valve 18 simultaneously and reduces aperture, strengthens heat dissipation capacity with the flow of the hot water of increasing entrance radiator 3.When the temperature that temperature sensor 6 is measured is higher than certain temperature when, central controller controls valve 5 reduces aperture, controls valve 18 simultaneously and strengthens aperture, strengthens heat dissipation capacity with the flow of the hot water of minimizing entrance radiator 3.
When temperature sensor 6 measure temperature low to a certain extent when, the ability of the now external heat exchange of radiator can be deteriorated, normal heating demands cannot be met, this shows that the thermal-arrest ability of solar thermal collector also goes wrong, such as sunlight is not the most the strongest, or the when that not having the sun in the evening, now valve 4 can be automatically switched off, valve 5 and valve 18 can fully open, the pipeline at temperature difference electricity generation device and radiator place forms a circulation line, water enters temperature difference electricity generation device, the electric energy of temperature difference electricity generation device storage heats entering water in temperature difference electricity generation device, the water of heating enters in radiator 3 and dispels the heat.
By above-mentioned operation, can be sunray is strong when, in the heat-sinking capability meeting radiator 3, after i.e. meeting user's radiating requirements, unnecessary heat is generated electricity by temperature difference electricity generation device 2, in the case of solar thermal collector 1 heat capacity deficiency, utilize the electric energy heat cycles water that temperature difference electricity generation device stores, to meet the radiating requirements of radiator 3.So can make full use of solar energy, it is to avoid the waste of too much heat.
As preferably, the temperature of the water entered in radiator 3 can not be utilized to automatically control the flow of water, the ambient temperature measuring radiator periphery can be used, such as, the indoor temperature (by arranging indoor temperature transmitter) measuring radiator automatically controls the flow of the water entering radiator, if indoor temperature is too low, then increases the flow of the water entering radiator 3, if indoor temperature is too high, then reduce the flow of the water entering radiator 3.
Certainly, the premise being controlled flow by indoor temperature is that the temperature that temperature sensor 6 is measured needs higher than uniform temperature, and otherwise, the when that the thermal-arrest of solar thermal collector being less able, in any case increase flow, radiating effect is all without very well.
The when that pipeline at temperature difference electricity generation device and radiator place forming a circulation line, when the temperature that temperature sensor 6 is measured is less than certain temperature when, controller 15 controls accumulator 26, improves the output power of accumulator 26, to improve the temperature of the water flowed through in temperature difference electricity generation device.When the temperature that temperature sensor 6 is measured is higher than certain temperature when, controller 15 controls accumulator 26, reduces the output power of accumulator 26, to improve the temperature of the water flowed through in temperature difference electricity generation device.
By such control, it is possible to the electricity of Appropriate application accumulator, it is to avoid the loss of electricity.
The structure of described temperature difference electricity generation device 2 is as shown in Figure 2, described temperature difference electricity generation device 2 includes casing 14, heat pipe 23, thermo-electric generation sheet 24, thermo-electric generation sheet heat radiator 25, controller 15 and accumulator 26, heat pipe 23 is set in casing, one end of thermo-electric generation sheet 24 is connected with heat pipe, the other end is connected with radiator 25, and thermo-electric generation sheet 24 is connected with accumulator 26 also by controller 15.
As preferably, thermo-electric generation sheet 24 is connected with user also by controller 15, to provide the electric energy required for user.
As preferably, controller 15 controls temperature difference electricity generation device and preferentially meets user power utilization demand, and first controller determines the electricity needed for user, and after then the electricity that thermo-electric generation sheet sends deducts the electricity of user again, remaining electricity is stored in accumulator 26 standby.
Although Fig. 2 show only a thermo-electric generation sheet, but is not limited to one in reality, multiple demand with satisfied generating can be set.
Preferably, described radiator for finned tubular radiator, concrete structure sees Fig. 4.Finned tube includes upper header 10 and lower collector pipe 10 and is positioned at the finned tube of lower collector pipe.Described finned tube is cylindricality finned tube, described finned tube includes the cuboid 9 being positioned at center and is positioned at the fins set that cuboid is peripheral, the cross section of described cuboid 9 is square, from cross section, described fins set includes from four outward extending main fins 11 in foursquare diagonal angle with from the secondary fin 13 of main fin 11 outward extending first, described fins set also includes the outward extending second secondary fin 12 from foursquare four limits, the secondary fin 13 of extend to same direction the first of described same main fin 11 is parallel to each other, and fin 12 secondary with second extended to same direction is parallel to each other, described main fin 11 and secondary fin 12, 13 ends extended form equilateral octagon.
Preferably, as it is shown on figure 3, the plane specular that finned tube is formed along square diagonal, the plane simultaneously formed along the line at the place, midpoint of foursquare two opposite side is also specular.
Preferably, as it is shown on figure 3, the centrage of main fin 11 is vertical with an equilateral octagonal limit and be positioned at the midpoint on equilateral octagonal limit with equilateral octagonal junction point.
As shown in Figure 3, it is preferred that the second secondary fin 2 ", the 2 ' position being arranged on foursquare diagonal angle.
As it is shown on figure 3,1 ', 2 ', 1 ", 2 " the secondary fin of indication is the second secondary fin, 3 ', 4 ', 5 ', 3 ", 4 ", 5 " the secondary fin of indication is the first secondary fin.
The length of the first secondary fin is shorter and shorter along with the distance apart from main fin diagonal angle.
nullIn the case of the length on foursquare limit is certain，Main fin and secondary fin are the longest，Heat transfer effect is the best the most in theory，Process of the test finds，When main fin and secondary fin reach certain length when，Then heat transfer effect just increases the most inconspicuous，It is primarily due to along with main fin and secondary finned length increase，More and more lower in the temperature of flight tip，Along with temperature is reduced to a certain degree，Heat transfer effect then can be caused inconspicuous，Also add the cost of material on the contrary，Simultaneously，In heat transfer process，If finned tube height is the highest or spacing between secondary fin is the least，Also the deterioration of heat transfer effect is easily caused，Because the increase along with height，Boundary region is thickening，Boundary region between adjacent fins is caused to coincide mutually，Deteriorate heat transfer，Finned tube height is the lowest or spacing between secondary fin causes the most greatly heat exchange area to reduce，Have impact on the transmission of heat，Therefore in the distance of adjacent secondary fin、The foursquare length of side、An optimized size relationship is met between the length of main fin and the height of finned tube.
Therefore, the present invention is the dimensionally-optimised relation of the optimal finned tube that thousands of the test datas by multiple various sizes of finned tubes sum up.
Angle between described first secondary fin and main fin is 45 °, and the distance of described adjacent secondary fin is L1, and the described foursquare length of side is L0, and the height of described main fin is L2, and the relation of above-mentioned three meets equation below:
L1/L0=a*ln (L2/L0)+b, wherein ln is logarithmic function, 0.22 < a < 0.24,0.20 <b < 0.23,
40mm<=L0<=60mm,10mm<=L1<=25mm,55mm<=L2<=80mm;
0.2<L1/L0<0.42,1.2<L2/L0<2.0;0.03<L1/H<=0.15。
Preferably, the height of finned tube is H, 100mm < H < 300mm.Preferably 150-220mm.
As it is shown in fig. 7, the height H of finned tube only calculates the height of the part with fin.
Preferably a=0.24, b=0.22,10mm≤L1≤14mm.
It should be noted that distance L1 of adjacent pair fin is the distance starting from the center of secondary fin to count.
By testing after result of calculation, by calculating border and the numerical value of intermediate value, the result of gained substantially matches with formula again, and error is substantially within 3%, and maximum relative error is less than 5%, and mean error is 1.8%.
Preferably, the distance of described adjacent secondary fin is identical.Wherein the angle between the first secondary fin 13 and main fin 12 is 45 ° and means that secondary fin 13 is perpendicular to a limit at main fin diagonal angle, simultaneously as secondary fin is parallel to each other so that the second secondary fin is perpendicular to its foursquare limit extended.Mainly fully dispelling the heat for reduction flow dead, the fin design around prismatic finned tube becomes the form that four limits with middle cuboid are respectively perpendicular.
As preferably, the width of main fin is greater than the width of secondary fin.
Preferably, the width of main fin is b4, and the width of secondary fin is b2, wherein 2.5*b2 <b4 < 3.5*b2;
As preferably, the width of main fin is 0.06*L0 <b4 < 0.10*L0 with the length relation on foursquare limit.
As preferably, the pipe thickness of cuboid 9 pipe is 1-3mm, preferably 2mm.
Preferably, as shown in Figure 8, adjacent fins pipe is leaning closely against together, also interconnects, thus form the passage of air between its corresponding fin.
Preferably, the structure of heat collector, as it is shown in figure 5, include thermal-collecting tube 20, reflecting mirror 21 and collecting plate 22, is connected by collecting plate 22 between two adjacent thermal-collecting tubes 20, so that forming tube plate structure between multiple thermal-collecting tube and adjacent collecting plate；Described tube plate structure parabolically shape structure or arc-shaped structure, the bending direction of described parabola or circular arc is contrary with the parabolic structure of reflecting mirror 21, and the focus of tube plate structure and the focus of reflecting mirror 21 are on a point.By arranging this kind of structure, the endotherm area of thermal-collecting tube can be expanded, the light major part making reflecting mirror reflect all reflexes on thermal-collecting tube or coupled collecting plate, and the reflection light of thermal-collecting tube reflexes to thermal-collecting tube and collecting plate again by reflecting mirror simultaneously, makes thermal-collecting tube absorb more heat.
Preferably, in the middle part of tube plate structure, (i.e. A point) extends to both sides (i.e. B, C two point), and the caliber of thermal-collecting tube can be more and more less.Main cause is that middle part is heated at most, and extends to both sides from middle part, absorbs heat and is gradually lowered.By the continuous reduction of caliber, so that being heated evenly of water in whole thermal-collecting tube, it is to avoid medium temperature is too high and both sides temperature is too low.The material that so can also avoid the thermal-collecting tube of centre is at high temperature easily damaged, and can keep the homogeneous temperature of whole thermal-collecting tube, increase the service life.
Preferably, in the middle part of tube plate structure, (i.e. A point) extends to both sides (i.e. B, C two point), and the distance between thermal-collecting tube is more and more remote, and the width i.e. connecting collecting plate between two thermal-collecting tubes is increasing.Main cause is that middle part is heated at most, and extends to both sides from middle part, absorbs heat and is gradually lowered.By the continuous increase of collecting plate width, so that being heated evenly of water in whole thermal-collecting tube, it is to avoid medium temperature is too high and both sides temperature is too low.The material that so can also avoid the thermal-collecting tube of centre is at high temperature easily damaged, and can keep the homogeneous temperature of whole thermal-collecting tube, increase the service life.
The projection of augmentation of heat transfer it is provided for, to strengthen the absorption to solar energy on the lower wall surface (face relative with reflecting mirror 21) of tube plate structure.Extending to both sides (i.e. the direction, the left and right sides of Fig. 5 thermal-collecting tube 20) in the middle part of tube plate structure, the height of projection of the lower wall surface of thermal-collecting tube is more and more lower.Main cause is that middle part is heated at most, and extends to both sides from middle part, absorbs heat and is gradually lowered.By the continuous reduction of height of projection, so that being heated evenly of water in whole thermal-collecting tube, it is to avoid medium temperature is too high and both sides temperature is too low.The material that so can also avoid the thermal-collecting tube of centre is at high temperature easily damaged, and can keep the homogeneous temperature of whole thermal-collecting tube, increase the service life.
As preferably, extending to both sides (i.e. the direction, the left and right sides of Fig. 5 thermal-collecting tube 20) in the middle part of tube plate structure, the density of protrusions of the lower wall surface of tube plate structure is more and more lower.Main cause is that middle part is heated at most, and extends to both sides from middle part, absorbs heat and is gradually lowered.By the continuous reduction of density of protrusions, so that being heated evenly of water in whole thermal-collecting tube, it is to avoid medium temperature is too high and both sides temperature is too low.The material that so can also avoid the thermal-collecting tube of centre is at high temperature easily damaged, and can keep the homogeneous temperature of whole thermal-collecting tube, increase the service life.
Tube plate structure surface coating heat-sink shell, described heat-sink shell outwards includes infrared reflection coating, heat absorbing coating and antireflection coatings in tube plate structure successively, and wherein that the thickness of infrared reflection coating, heat absorbing coating and antireflection coatings is 0.17um, 0.65um, 0.15um respectively；Described infrared reflection coating is from inside to outside Cu, Ag two-layer, and the thickness proportion of two-layer is 11:5；Heat absorbing coating includes NbN, TiAl, Cr the most successively2O3Three layers, the thickness proportion of three layers is 10:3:4；Antireflection coatings is Nb the most successively2O5, Al2O3, SiO2And Si3N4Four layers, wherein the thickness proportion of four layers is 5:4:4:2.
In above layers, by strengthening the thickness proportion of heat absorbing coating, reduce infrared reflecting layer and the thickness of antireflection layer, the absorption to solar energy can be significantly increased, simultaneously, by adjusting the thickness proportion of the material of each layer of infrared reflecting layer and antireflection layer, it is also possible to realize reducing the degree of the reflection to sunlight.
Above-mentioned dimension scale is to test, by nearly hundred kinds of different thickness proportion, the optimal result got.By experiment, for using composition and the thickness of each independent stratum in above-mentioned absorber coatings, the absorptance of the absorber coatings of preparation can be made to be more than 0.95, and realize the emissivity of 0.04.
Manufacture method for above-mentioned coating, it is possible to use this area through frequently with vacuum magnetron sputtering coating film technique prepare.
Although the present invention discloses as above with preferred embodiment, but the present invention is not limited to this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (1)
1. a solar energy collector system, including thermal-collecting tube, reflecting mirror and collecting plate, is connected by collecting plate between two adjacent thermal-collecting tubes, so that forming tube plate structure between multiple thermal-collecting tube and adjacent collecting plate；Described tube plate structure parabolically shape structure or arc-shaped structure, the bending direction of described parabola or circular arc is contrary with the parabolic structure of reflecting mirror, and the focus of tube plate structure and the focus of reflecting mirror are on a point；
Extending to both sides in the middle part of tube plate structure, the thermal-collecting tube caliber of tube plate structure is more and more less.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510414397.3A CN105042898B (en) | 2014-07-17 | 2014-07-17 | A kind of tube-sheet type solar energy collector system of caliber change |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410339674.4A CN104075463B (en) | 2014-07-17 | 2014-07-17 | A kind of arc tube plate-type solar thermal collector system |
| CN201510414397.3A CN105042898B (en) | 2014-07-17 | 2014-07-17 | A kind of tube-sheet type solar energy collector system of caliber change |
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| CN201410339674.4A Division CN104075463B (en) | 2014-07-17 | 2014-07-17 | A kind of arc tube plate-type solar thermal collector system |
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| CN105042898A CN105042898A (en) | 2015-11-11 |
| CN105042898B true CN105042898B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610246094.XA Active CN105910299B (en) | 2014-07-17 | 2014-07-17 | A kind of solar energy collector system of thermal-collecting tube lower wall surface height of projection change |
| CN201510414395.4A Active CN105066472B (en) | 2014-07-17 | 2014-07-17 | A kind of solar energy collector system automatically controlling fluid flow direction |
| CN201510414334.8A Active CN104990288B (en) | 2014-07-17 | 2014-07-17 | Tube-plate type solar heat collector system with variable protrusion height |
| CN201610246096.9A Expired - Fee Related CN105910301B (en) | 2014-07-17 | 2014-07-17 | A kind of solar energy collector system of collecting plate change width |
| CN201510157829.7A Active CN104764223B (en) | 2014-07-17 | 2014-07-17 | The arc tube plate-type solar thermal collector system that a kind of caliber changes |
| CN201510414335.2A Active CN104990289B (en) | 2014-07-17 | 2014-07-17 | Solar heat collector system with variable tube plate width |
| CN201510414397.3A Active CN105042898B (en) | 2014-07-17 | 2014-07-17 | A kind of tube-sheet type solar energy collector system of caliber change |
| CN201410339674.4A Active CN104075463B (en) | 2014-07-17 | 2014-07-17 | A kind of arc tube plate-type solar thermal collector system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610246094.XA Active CN105910299B (en) | 2014-07-17 | 2014-07-17 | A kind of solar energy collector system of thermal-collecting tube lower wall surface height of projection change |
| CN201510414395.4A Active CN105066472B (en) | 2014-07-17 | 2014-07-17 | A kind of solar energy collector system automatically controlling fluid flow direction |
| CN201510414334.8A Active CN104990288B (en) | 2014-07-17 | 2014-07-17 | Tube-plate type solar heat collector system with variable protrusion height |
| CN201610246096.9A Expired - Fee Related CN105910301B (en) | 2014-07-17 | 2014-07-17 | A kind of solar energy collector system of collecting plate change width |
| CN201510157829.7A Active CN104764223B (en) | 2014-07-17 | 2014-07-17 | The arc tube plate-type solar thermal collector system that a kind of caliber changes |
| CN201510414335.2A Active CN104990289B (en) | 2014-07-17 | 2014-07-17 | Solar heat collector system with variable tube plate width |
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| CN201410339674.4A Active CN104075463B (en) | 2014-07-17 | 2014-07-17 | A kind of arc tube plate-type solar thermal collector system |
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| CN112283956A (en) * | 2018-08-05 | 2021-01-29 | 青岛佰腾科技有限公司 | Design method for spacing of inclined heat collecting tubes |
| CN109764560B (en) * | 2019-01-09 | 2020-11-27 | 青岛海尔空调器有限总公司 | Energy system and control method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104075463B (en) | 2015-09-23 |
| CN105910301A (en) | 2016-08-31 |
| CN105042898A (en) | 2015-11-11 |
| CN104764223B (en) | 2016-05-11 |
| CN104990288A (en) | 2015-10-21 |
| CN104075463A (en) | 2014-10-01 |
| CN105066472B (en) | 2016-08-17 |
| CN105910299A (en) | 2016-08-31 |
| CN104990288B (en) | 2016-08-17 |
| CN105066472A (en) | 2015-11-18 |
| CN104990289B (en) | 2016-08-17 |
| CN104764223A (en) | 2015-07-08 |
| CN104990289A (en) | 2015-10-21 |
| CN105910301B (en) | 2017-11-17 |
| CN105910299B (en) | 2018-01-09 |
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Effective date of registration: 20181102 Address after: 223700 No. 29 Huaihai East Road, Siyang County Economic Development Zone, Suqian, Jiangsu Patentee after: Jiangsu Spcc-silk Co., Ltd. Address before: 266075 room 0201, block A, 75 Fuzhou South Road, Shinan District, Qingdao, Shandong. Patentee before: Zhao Wei |
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