CN104764223B - The arc tube plate-type solar thermal collector system that a kind of caliber changes - Google Patents
The arc tube plate-type solar thermal collector system that a kind of caliber changes Download PDFInfo
- Publication number
- CN104764223B CN104764223B CN201510157829.7A CN201510157829A CN104764223B CN 104764223 B CN104764223 B CN 104764223B CN 201510157829 A CN201510157829 A CN 201510157829A CN 104764223 B CN104764223 B CN 104764223B
- Authority
- CN
- China
- Prior art keywords
- thermal
- collecting
- tube
- fin
- radiator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005452 bending Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 abstract description 8
- 230000005611 electricity Effects 0.000 description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 30
- 238000000576 coating method Methods 0.000 description 25
- 239000011248 coating agent Substances 0.000 description 17
- 238000010521 absorption reaction Methods 0.000 description 8
- 238000012546 transfer Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000003416 augmentation Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 229910010038 TiAl Inorganic materials 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 241000127225 Enceliopsis nudicaulis Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- H02N11/002—Generators
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a kind of solar energy collector system, comprise thermal-collecting tube, speculum and collecting plate, between two adjacent thermal-collecting tubes, connect by collecting plate, thereby make to form tube plate structure between multiple thermal-collecting tubes and adjacent collecting plate; Described tube plate structure is parabolic shape structure or arc-shaped structure, and the bending direction of described parabola or circular arc is contrary with the parabolic structure of speculum, and the focus of tube plate structure and the focus of speculum are on a point; Extend to both sides along thermal-collecting tube middle part, the caliber of thermal-collecting tube can be more and more less. The material of the thermal-collecting tube in the middle of the present invention can avoid at high temperature easily damages, and can keep the temperature of whole thermal-collecting tube even, increases the service life.
Description
Technical field
The invention belongs to field of solar energy, relate in particular 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, day by day in short supply, cause rising steadily of price, the problem of environmental pollution that conventional fossil fuel causes is simultaneously also further serious, and these are all limiting the development of society and human life quality's raising greatly. Energy problem has become one of distinct issues of contemporary world. Thereby seek the new energy, particularly free of contamination clean energy resource and become the focus of present people research.
Solar energy is a kind of inexhaustible clean energy resource, and stock number is huge, and the annual solar radiant energy total amount of receiving of earth surface is 1 × 1018KWh, is more than 10,000 times of world's year consumption gross energy. All important using the utilization of solar energy as new energy development of countries in the world, the Chinese government also clearly proposes to want develop actively new forms of energy at Report on the Work of the Government already, and wherein the utilization of solar energy is especially in occupation of prominent position. But because solar radiation arrives tellurian energy density little (approximately a kilowatt every square metre), and be again discontinuous, this brings certain difficulty to large-scale exploitation. Therefore, in order extensively to utilize solar energy, not only want the problem on technical solution, and must be able to compete mutually with conventional energy resource economically.
The solar energy that solar thermal collector absorbs may produce surplus now in some cases, and now this part solar energy may lose, and therefore needs a kind of superfluous heat to be made full use of.
No matter the solar thermal collector of which kind of form and structure, all will have an absorption piece that is used for absorbing solar radiation, and the structure of heat collector plays important effect to the absorption of solar energy.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of new solar energy collector system, thereby effectively utilizes solar energy.
To achieve these goals, technical scheme of the present invention is as follows: a kind of solar energy collector system, comprise thermal-collecting tube, speculum and collecting plate, between two adjacent thermal-collecting tubes, connect by collecting plate, thereby make to form tube plate structure between multiple thermal-collecting tubes and adjacent collecting plate; Described tube plate structure is parabolic shape structure or arc-shaped structure, and the bending direction of described parabola or circular arc is contrary with the parabolic structure of speculum, and the focus of tube plate structure and the focus of speculum are on a point.
On the thermal-collecting tube lower wall surface relative with speculum, be provided for the projection of augmentation of heat transfer, to strengthen the absorption to solar energy, extend to both sides along thermal-collecting tube middle part, the height of projection of the lower wall surface of thermal-collecting tube is more and more lower.
On the thermal-collecting tube lower wall surface relative with speculum, be provided for the projection of augmentation of heat transfer, to strengthen the absorption to solar energy, extend to both sides along thermal-collecting tube middle part, the density of protrusions of the lower wall surface of thermal-collecting tube is more and more lower.
Surfaces of collector tubes coating heat-sink shell, described heat-sink shell outwards comprises successively infrared reflection coating, heat absorbing coating and antireflection coatings in thermal-collecting tube, and wherein that the thickness of infrared reflection coating, heat absorbing coating and antireflection coatings is respectively 0.17um, 0.65um, 0.15um; Described infrared reflection coating is from inside to outside that Cu, Ag are two-layer, and two-layer thickness proportion is 11:5; Heat absorbing coating from inside to outside comprises NbN, TiAl, Cr successively２Ｏ３Three layers, the thickness proportion of three layers is 10:3:4; Antireflection coatings is from inside to outside Nb successively２Ｏ５、Ａｌ２Ｏ３、ＳｉＯ２And Si３Ｎ４Four layers, wherein the thickness proportion of four layers is 5:4:4:2.
Extend to both sides along thermal-collecting tube middle part, the caliber of thermal-collecting tube can be more and more less.
Extend to both sides along thermal-collecting tube middle part, the width that connects the collecting plate between two thermal-collecting tubes is increasing.
Solar energy collector system, also comprise the radiator being connected by pipeline with heat collector, radiator comprises 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 comprises the fins set that is positioned at the cuboid of center and is positioned at cuboid periphery, the cross section of described cuboid is square, from cross section, described fins set comprises from four outward extending main fins in foursquare diagonal angle with from outward extending the first secondary fin of main fin, described fins set also comprises outward extending the second secondary fin from foursquare four limits, the first secondary fin extending to same direction of described same main fin is parallel to each other, and parallel to each other with the second secondary fin extending to same direction, the end that described main fin and secondary fin extend forms equilateral octagon.
Angle between described the 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 above-mentioned three's relation meets following formula:
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, comprise with heat collector and carry out the temperature difference electricity generation device that pipeline is connected, temperature difference electricity generation device comprises casing, heat pipe, thermo-electric generation sheet, thermo-electric generation sheet heat radiator, controller and battery, 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 also connected with battery by controller.
Described solar energy collector system comprises temperature difference electricity generation device and radiator, the first valve, the second valve, the 3rd valve, temperature sensor, described heat collector is communicated with formation closed circuit with temperature difference electricity generation device, heat collector is communicated with formation closed circuit with radiator, the pipeline parallel connection at temperature difference electricity generation device and radiator place, heat collector absorbs solar energy, water in heating heat collector, water after heating enters respectively temperature difference electricity generation device and radiator by outlet pipeline, in temperature difference electricity generation device, generate electricity, in radiator, carry out heat exchange, the water flowing 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, the present invention has advantages of as follows:
1) can make full use of solar energy, avoid the loss of solar heat, unnecessary solar energy is stored with the form of electric energy, so that follow-up use.
2) provide a kind of new temperature difference electricity generation device, met the demand of solar energy;
3) the present invention, by test of many times, obtains an optimum radiator optimum results, and verifies by test, thereby has proved the accuracy of result.
4), by central controller, realize the automatic control to valve, thereby realize effective utilization of solar energy.
5) shape of the parabolical flat tube of the thermal-collecting tube by heat collector, reaches optimum absorption solar energy.
6) material and the thickness of the present invention to heat-sink shell carries out meticulous selection and experiment, has reached the technique effect of best heat absorption.
7) structure of heat collector is reasonably designed, avoid heat collector local temperature overheated.
Brief description of the drawings
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 numeral 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 tubes, 17 heat collector water return pipelines, 18 valves, 19 temperature sensors, 20 thermal-collecting tubes, 21 speculums, 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 batteries, 27 users.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
A kind of solar energy collector system, as shown in Figure 1, described system comprises 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 is communicated with formation closed circuit with temperature difference electricity generation device 2, heat collector 1 is communicated with formation closed circuit with radiator 3, the pipeline parallel connection at temperature difference electricity generation device 2 and radiator 3 places, heat collector 1 absorbs solar energy, water in heating heat collector 1, water after heating enters respectively temperature difference electricity generation device 2 and radiator 3 by outlet pipeline 8, in temperature difference electricity generation device 2, generate electricity, in radiator 3, carry out heat exchange, the water flowing 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, in generating electricity in temperature difference electricity generation device 2 by solar energy, can utilize radiator outwards to dispel the heat. Certainly, radiator and temperature difference electricity generation device can independent operatings, or isolated operation one of them.
As shown in Figure 1, valve 4 is arranged on outlet pipe, for controlling the total water yield that enters temperature difference electricity generation device 2 and radiator 3, valve 5 is arranged on the position of the inlet tube 16 of the pipeline at radiator 3 places, for controlling the flow of the water that enters radiator 3, valve 18 is arranged on the position of the inlet tube 7 of the pipeline at temperature difference electricity generation device 2 places, for controlling the flow of the water that enters 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 that enters radiator 3. Described system also comprises central controller, and described central controller carries out data with valve 4, valve 5, valve 18, temperature sensor 6 and is connected.
Preferably, the temperature of measuring when temperature sensor 6 is lower than certain temperature time, and central controller controls valve 5 strengthens aperture, and by-pass valve control 18 reduces aperture simultaneously, strengthens heat dissipation capacity with the flow that strengthens the hot water that enters radiator 3. The temperature of measuring when temperature sensor 6 is higher than certain temperature time, and central controller controls valve 5 reduces aperture, and by-pass valve control 18 strengthens aperture simultaneously, strengthens heat dissipation capacity with the flow that reduces the hot water that enters radiator 3.
The temperature measured when temperature sensor 6 is low to a certain extent time, the ability meeting variation of the now external heat exchange of radiator, cannot meet normal heating demand, this thermal-arrest ability that shows solar thermal collector also goes wrong, for example sunshine is not now very strong, or evening is not when thering is no the sun, now valve 4 can be closed automatically, valve 5 and valve 18 can be opened completely, 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 when sunray be strong, in the heat-sinking capability that meets radiator 3, after meeting user's radiating requirements, by more than heat generate electricity by temperature difference electricity generation device 2, the in the situation that of solar thermal collector 1 heat capacity deficiency, utilize the electric energy Heating Cyclic water of temperature difference electricity generation device storage, to meet the radiating requirements of radiator 3. Can make full use of like this solar energy, avoid the waste of too much heat.
As preferably, can not utilize the temperature that enters the water in radiator 3 automatically to control the flow of water, can adopt the environment temperature of measuring radiator periphery, for example, the indoor temperature (by indoor temperature transmitter is set) of measuring radiator is controlled the flow of the water that enters radiator automatically, if indoor temperature is too low, increases the flow of the water that enters radiator 3, if indoor temperature is too high, reduce the flow of the water that enters radiator 3.
Certainly be that the temperature measured of temperature sensor 6 need to be higher than uniform temperature by a prerequisite of indoor temperature control flow, otherwise when the thermal-arrest ability variation of solar thermal collector, in any case increase flow, radiating effect can be not fine.
When the pipeline at temperature difference electricity generation device and radiator place forms a circulation line, the temperature of measuring when temperature sensor 6 is lower than certain temperature time, controller 15 is controlled battery 26, improves the output power of battery 26, to improve the temperature of the water in temperature difference electricity generation device of flowing through. The temperature of measuring when temperature sensor 6 is higher than certain temperature time, and controller 15 is controlled battery 26, reduces the output power of battery 26, to improve the temperature of the water in temperature difference electricity generation device of flowing through.
By such control, can rationally utilize the electric weight of battery, avoid the loss of electric weight.
The structure of described temperature difference electricity generation device 2 as shown in Figure 2, described temperature difference electricity generation device 2 comprises casing 14, heat pipe 23, thermo-electric generation sheet 24, thermo-electric generation sheet heat radiator 25, controller 15 and battery 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 also connected with battery 26 by controller 15.
As preferably, thermo-electric generation sheet 24 is also connected with user by controller 15, and user is provided needed electric energy.
As preferably, controller 15 controls that temperature difference electricity generation device is limited meets user power utilization demand, first controller determines the required electric weight of user, and the electric weight then thermo-electric generation sheet being sent deducts after user's electric weight again, and remaining electric weight is stored in battery 26 for subsequent use.
Although Fig. 2 has only shown a thermo-electric generation sheet, in reality, be not limited to one, can arrange multiple to meet the demand of generating.
Preferably, described radiator be finned tubular radiator, concrete structure is referring to Fig. 4. finned tube comprises 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 comprises the cuboid 9 that is positioned at center and the fins set that is positioned at cuboid periphery, the cross section of described cuboid 9 is squares, from cross section, described fins set comprises from four outward extending main fins 11 in foursquare diagonal angle with from outward extending the first secondary fin 13 of main fin 11, described fins set also comprises outward extending the second secondary fin 12 from foursquare four limits, the first secondary fin 13 extending to same direction of described same main fin 11 is parallel to each other, and parallel to each other with the second secondary fin 12 extending to same direction, described main fin 11 and secondary fin 12, 13 ends of extending form equilateral octagon.
Preferably, as shown in Figure 3, the level crossing picture symmetry that finned tube forms along square diagonal, the plane that the while forms along the line at the mid point place of foursquare two opposite side is also mirror image symmetry.
Preferably, as shown in Figure 3, the center line of main fin 11 is vertical with an equilateral octagonal limit and be positioned at the mid point on equilateral octagonal limit with equilateral octagonal tie point.
As shown in Figure 3, preferred, the second secondary fin 2 ", the 2 ' position that is arranged on foursquare diagonal angle.
As shown in 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 along with the distance at distance main fin diagonal angle is shorter and shorter.
In the certain situation of the length on foursquare limit, main fin and secondary fin are longer, heat transfer effect is better in theory, in process of the test, find, in the time that main fin and secondary fin reach certain length, heat transfer effect just increases very not obvious, main because along with main fin and secondary finned length increase, temperature at fin end is also more and more lower, along with temperature is reduced to a certain degree, can cause heat transfer effect not obvious, the contrary cost that has also increased material, simultaneously, in heat transfer process, if finned tube height is too high or secondary fin between spacing too little, also easily cause the deterioration of heat transfer effect, because along with the increase of height, boundary layer thickening, cause boundary layer between adjacent fins to overlap mutually, worsen and conduct heat, spacing between the too low or secondary fin of finned tube height causes too greatly heat exchange area to reduce, affect the transmission of heat, therefore in the distance of adjacent secondary fin, the foursquare length of side, between the length of main fin and the height of finned tube, meet an optimized size relationship.
Therefore, the present invention is the dimensionally-optimised relation of the best finned tube that sums up of thousands of test datas of the finned tube by multiple different sizes.
Angle between described the 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 above-mentioned three's relation meets following formula:
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 shown in Figure 7, the height H of finned tube is only calculated the height of the part with fin.
Preferred a=0.24, b=0.22,10mm≤L1≤14mm.
It should be noted that, the distance L 1 of adjacent pair fin is the distance that starts to count from the center of secondary fin.
By testing after result of calculation, by the numerical value of computation bound and median, the result of gained matches with formula substantially again, and error is substantially in 3%, and maximum relative error is no more 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 the limit of secondary fin 13 perpendicular to main fin diagonal angle, because secondary fin is parallel to each other, makes the foursquare limit of the second secondary fin perpendicular to its extension simultaneously. Be mainly fully to dispel the heat for reducing flow dead, prismatic finned tube fin design around becomes four forms that limits difference is vertical with middle cuboid.
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 and the length relation on foursquare limit are 0.06*L0 <b4 < 0.10*L0.
As preferably, the pipe thickness of cuboid 9 pipes is 1-3mm, preferably 2mm.
Preferably, as shown in Figure 8, adjacent fins pipe is closely close together, between its corresponding fin, be also connected to each other, thus the passage of formation air.
Preferably, the structure of heat collector as shown in Figure 5, comprises thermal-collecting tube 20, speculum 21 and collecting plate 22, connects, thereby make to form tube plate structure between multiple thermal-collecting tubes and adjacent collecting plate between two adjacent thermal-collecting tubes 20 by collecting plate 22; Described tube plate structure is parabolic shape structure or arc-shaped structure, and the bending direction of described parabola or circular arc is contrary with the parabolic structure of speculum 21, and the focus of the focus of tube plate structure and speculum 21 is on a point. By this kind of structure is set, can expand the endotherm area of thermal-collecting tube, the wide part of speculum reflection is all reflexed on thermal-collecting tube or coupled collecting plate, and the reverberation of thermal-collecting tube reflexes to thermal-collecting tube and collecting plate again by speculum simultaneously, makes thermal-collecting tube absorb more heat.
Preferably, along thermal-collecting tube middle part (being A point) to both sides, (being B, C 2 points) extends, 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 from middle part to both sides, absorbs heat and reduces gradually. By constantly reducing of caliber, can make being heated evenly of water in whole thermal-collecting tube, avoid that medium temperature is too high and both sides temperature is too low. The material of the thermal-collecting tube in the middle of so also can avoiding at high temperature easily damages, and can keep the temperature of whole thermal-collecting tube even, increases the service life.
Preferably, along thermal-collecting tube middle part (being A point) to both sides, (being B, C 2 points) extends, and the distance between thermal-collecting tube is more and more far away, and the width that connects two collecting plates between thermal-collecting tube is increasing. Main cause is that middle part is heated at most, and extends from middle part to both sides, absorbs heat and reduces gradually. By the continuous increase of collecting plate width, can make being heated evenly of water in whole thermal-collecting tube, avoid that medium temperature is too high and both sides temperature is too low. The material of the thermal-collecting tube in the middle of so also can avoiding at high temperature easily damages, and can keep the temperature of whole thermal-collecting tube even, increases the service life.
On the lower wall surface (face relative with speculum 21) of thermal-collecting tube, be provided for the projection of augmentation of heat transfer, to strengthen the absorption to solar energy. Along thermal-collecting tube middle part to both sides, (being the left and right sides direction of Fig. 5 thermal-collecting tube 20) extends, and 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 from middle part to both sides, absorbs heat and reduces gradually. By constantly reducing of height of projection, can make being heated evenly of water in whole thermal-collecting tube, avoid that medium temperature is too high and both sides temperature is too low. The material of the thermal-collecting tube in the middle of so also can avoiding at high temperature easily damages, and can keep the temperature of whole thermal-collecting tube even, increases the service life.
As preferably, along thermal-collecting tube middle part to both sides, (being the left and right sides direction of Fig. 5 thermal-collecting tube 20) extends, and the density of protrusions 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 from middle part to both sides, absorbs heat and reduces gradually. By constantly reducing of density of protrusions, can make being heated evenly of water in whole thermal-collecting tube, avoid that medium temperature is too high and both sides temperature is too low. The material of the thermal-collecting tube in the middle of so also can avoiding at high temperature easily damages, and can keep the temperature of whole thermal-collecting tube even, increases the service life.
Thermal-collecting tube 20 surface coating heat-sink shells, described heat-sink shell outwards comprises successively infrared reflection coating, heat absorbing coating and antireflection coatings in thermal-collecting tube, and wherein that the thickness of infrared reflection coating, heat absorbing coating and antireflection coatings is respectively 0.17um, 0.65um, 0.15um; Described infrared reflection coating is from inside to outside that Cu, Ag are two-layer, and two-layer thickness proportion is 11:5; Heat absorbing coating from inside to outside comprises NbN, TiAl, Cr successively２Ｏ３Three layers, the thickness proportion of three layers is 10:3:4; Antireflection coatings is from inside to outside Nb successively２Ｏ５、Ａｌ２Ｏ３、ＳｉＯ２And Si３Ｎ４Four layers, wherein the thickness proportion of four layers is 5:4:4:2.
In above-mentioned each layer, by strengthening the thickness proportion of heat absorbing coating, reduce the thickness of infrared reflecting layer and antireflection layer, can increase greatly the absorption to solar energy, simultaneously, by adjusting the thickness proportion of the material of each layer of infrared reflecting layer and antireflection layer, also can realize the degree of reduction to sun reflection of light.
Above-mentioned dimension scale is to test by nearly hundred kinds of different thickness proportion the best result getting. By experiment, for the composition and the thickness that adopt each independent stratum in above-mentioned absorber coatings, can make the absorptance of the absorber coatings of preparation be greater than 0.95, and realize 0.04 emissivity.
For the manufacture method of above-mentioned coating, the vacuum magnetron sputtering coating film technique preparation that can use this area often to adopt.
Although the present invention discloses as above with preferred embodiment, the present invention is not defined in 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 (2)
1. a solar energy collector system, comprises thermal-collecting tube, speculum and collecting plate, connects, thereby make to form tube plate structure between multiple thermal-collecting tubes and adjacent collecting plate between two adjacent thermal-collecting tubes by collecting plate; Described tube plate structure is parabolic shape structure or arc-shaped structure, and the bending direction of described parabola or circular arc is contrary with the parabolic structure of speculum, and the focus of tube plate structure and the focus of speculum are on a point; It is characterized in that extending to both sides along tube plate structure middle part, the caliber of thermal-collecting tube can be more and more less.
2. solar energy collector system according to claim 1, also comprise the radiator being connected by pipeline with heat collector, radiator comprises 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 comprises the fins set that is positioned at the cuboid of center and is positioned at cuboid periphery, the cross section of described cuboid is square, from cross section, described fins set comprises from four outward extending main fins in foursquare diagonal angle with from outward extending the first secondary fin of main fin, described fins set also comprises outward extending the second secondary fin from foursquare four limits, the first secondary fin extending to same direction of same main fin is parallel to each other, and parallel to each other with the second secondary fin extending to same direction, the end that described main fin and secondary fin extend forms equilateral octagon,
Angle between described the 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, meets following formula:
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。
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410339674.4A CN104075463B (en) | 2014-07-17 | 2014-07-17 | A kind of arc tube plate-type solar thermal collector system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410339674.4A Division CN104075463B (en) | 2014-07-17 | 2014-07-17 | A kind of arc tube plate-type solar thermal collector system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104764223A CN104764223A (en) | 2015-07-08 |
| CN104764223B true CN104764223B (en) | 2016-05-11 |
Family
ID=51596911
Family Applications (8)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
| CN201410339674.4A Active CN104075463B (en) | 2014-07-17 | 2014-07-17 | A kind of arc tube plate-type solar thermal collector system |
| CN201510414397.3A Active CN105042898B (en) | 2014-07-17 | 2014-07-17 | A kind of tube-sheet type solar energy collector system of caliber change |
| CN201510414395.4A Active CN105066472B (en) | 2014-07-17 | 2014-07-17 | A kind of solar energy collector system automatically controlling fluid flow direction |
| CN201510414335.2A Active CN104990289B (en) | 2014-07-17 | 2014-07-17 | Solar heat collector system with variable tube plate width |
| CN201510414334.8A Active CN104990288B (en) | 2014-07-17 | 2014-07-17 | Tube-plate type solar heat collector system with variable protrusion height |
| 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 |
| 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 |
Family Applications After (7)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410339674.4A Active CN104075463B (en) | 2014-07-17 | 2014-07-17 | A kind of arc tube plate-type solar thermal collector system |
| CN201510414397.3A Active CN105042898B (en) | 2014-07-17 | 2014-07-17 | A kind of tube-sheet type solar energy collector system of caliber change |
| CN201510414395.4A Active CN105066472B (en) | 2014-07-17 | 2014-07-17 | A kind of solar energy collector system automatically controlling fluid flow direction |
| CN201510414335.2A Active CN104990289B (en) | 2014-07-17 | 2014-07-17 | Solar heat collector system with variable tube plate width |
| CN201510414334.8A Active CN104990288B (en) | 2014-07-17 | 2014-07-17 | Tube-plate type solar heat collector system with variable protrusion height |
| 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 |
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (8) | CN104764223B (en) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729117B (en) * | 2015-03-09 | 2016-04-06 | 中国石油大学(华东) | A kind of solar energy collector system of thermally equivalent |
| CN104764226B (en) * | 2015-03-09 | 2016-02-24 | 中国石油大学(华东) | A kind of loop circuit heat pipe solar energy collector system |
| CN104764222B (en) * | 2015-03-09 | 2016-05-11 | 中国石油大学(华东) | A kind of solar thermal collector and system thereof that augmentation of heat transfer structure is set |
| CN104633960B (en) * | 2015-03-09 | 2015-08-12 | 中国石油大学(华东) | The loop circuit heat pipe solar energy system of thermal-collecting tube inner fin height change |
| CN105972838B (en) * | 2015-04-07 | 2017-10-10 | 青岛中正周和科技发展有限公司 | A kind of ceramic material solar heat-preservation system |
| CN104713250B (en) * | 2015-04-07 | 2016-03-02 | 赵炜 | A kind of arc tube plate-type solar thermal collector system |
| CN105650904B (en) * | 2015-04-07 | 2018-03-13 | 温州卡耐夫电器有限公司 | A kind of solar energy system |
| CN104879930B (en) * | 2015-04-24 | 2017-02-22 | 佛山市盈合电力燃料有限公司 | Automatically-controlled solar energy boiler system |
| CN105650891B (en) * | 2015-04-28 | 2018-01-09 | 山东大学 | A kind of solar heat-preservation system of heat-insulating shield insulation |
| CN104819583B (en) * | 2015-04-28 | 2016-04-20 | 山东大学（威海） | A kind of solar thermal collection system |
| CN105650896B (en) * | 2015-04-28 | 2018-02-06 | 山东大学（威海） | A kind of solar water output system |
| CN105650890B (en) * | 2015-04-28 | 2017-09-22 | 山东大学（威海） | A kind of solar heat-preservation system of setting electric heater |
| CN104819579B (en) * | 2015-04-28 | 2016-04-13 | 山东大学（威海） | A kind of solar heat-preservation system |
| CN105763140A (en) * | 2016-01-02 | 2016-07-13 | 俞亮芽 | Solar power generation system |
| CN105871304A (en) * | 2016-01-02 | 2016-08-17 | 俞亮芽 | Solar power generation device |
| CN105634384A (en) * | 2016-01-02 | 2016-06-01 | 俞亮芽 | Solar power generation device |
| CN107588563A (en) * | 2016-02-27 | 2018-01-16 | 山东大学 | A kind of solar thermal collector and musical staff system of height of projection change |
| CN105758009B (en) * | 2016-03-15 | 2018-03-20 | 青岛酒店管理职业技术学院 | A kind of solar thermal collector of thermal-collecting tube flow rule change |
| CN105698406B (en) * | 2016-03-15 | 2017-04-12 | 刘阳河 | Solar thermal collector with variable communicating hole area |
| CN105758016B (en) * | 2016-03-15 | 2018-06-22 | 赵炜 | A kind of solar thermal collector of thermal-arrest pipe size rule variation |
| CN105758013B (en) * | 2016-03-15 | 2017-06-16 | 赵炜 | A kind of solar thermal collector for connecting pitch of holes change |
| CN107084536B (en) * | 2017-05-23 | 2022-11-11 | 中国联合工程有限公司 | Efficient tower type solar power station heat collector system with gradually-changed heat absorption pipe diameter |
| CN110657411B (en) * | 2018-04-23 | 2022-05-17 | 青岛宝润科技有限公司 | Heat pipe type solar heat collector with variable pipe diameter in flow direction |
| CN112113354B (en) * | 2018-08-05 | 2022-07-29 | 青岛佰腾科技有限公司 | Heat collector constant-pressure pipe diameter optimization design method |
| 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 |
| CN116605848B (en) * | 2023-07-13 | 2023-10-03 | 云南全控机电有限公司 | Ultra-high purity tellurium purification equipment convenient to retrieve heat |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2359630Y (en) * | 1998-06-12 | 2000-01-19 | 杨黎明 | High-efficient solar energy heat collecting plate core with convex and concave point |
| CN101949594A (en) * | 2010-09-30 | 2011-01-19 | 北京印刷学院 | Hemispherical light-collecting secondary reflective solar water heater |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4249514A (en) * | 1978-03-09 | 1981-02-10 | Westinghouse Electric Corp. | Tracking solar energy concentrator |
| US4252107A (en) * | 1978-04-20 | 1981-02-24 | General Electric Company | Solar tracking concentrator |
| US4462392A (en) * | 1983-06-23 | 1984-07-31 | Tipton Harry R | Fixed solar collection system |
| US5069540A (en) * | 1990-10-18 | 1991-12-03 | Gonder Warren W | Parabolic solar collector body and method |
| CN2466574Y (en) * | 2001-01-31 | 2001-12-19 | 淄博华扬太阳能热水器有限公司 | Full glass vacuum heat-collecting tube heat-collector |
| CN2755515Y (en) * | 2004-02-24 | 2006-02-01 | 高元运 | Solar heat-collecting pipe |
| CN200979304Y (en) * | 2006-12-06 | 2007-11-21 | 北京天普太阳能工业有限公司 | Direct-through type whole-glass vacuum heat-collecting tube solar energy water heater |
| CN201155867Y (en) * | 2007-11-30 | 2008-11-26 | 广东五星太阳能有限公司 | Double function air heat collector |
| KR100897439B1 (en) * | 2008-09-02 | 2009-05-14 | (주)시에스넷 | Solar collector |
| CN101382350A (en) * | 2008-09-23 | 2009-03-11 | 史玉成 | Solar heat collector |
| CN201764718U (en) * | 2010-08-27 | 2011-03-16 | 卢晖 | High-efficiency flat solar heat collecting panel fin structure |
| CN201779879U (en) * | 2010-09-07 | 2011-03-30 | 黄永年 | Flat-plate concentrating collector |
| CN201819423U (en) * | 2010-10-20 | 2011-05-04 | 常州天天太阳能有限公司 | Efficient complete plate solar collector |
| KR20120113632A (en) * | 2011-04-05 | 2012-10-15 | 선다코리아주식회사 | Condenser for solar heat absorber of vacuum tube type for concentrating sunlight having uneven type reflector |
| CN202066223U (en) * | 2011-05-19 | 2011-12-07 | 开平港电电器有限公司 | Corrugation-shaped copper-aluminum composite solar heat exchanger |
| WO2013013249A1 (en) * | 2011-07-22 | 2013-01-31 | Avagyan Yurik | Solar heat collector |
| CN202393039U (en) * | 2011-12-08 | 2012-08-22 | 陕西科林能源发展股份有限公司 | Solar heat collection power generator |
-
2014
- 2014-07-17 CN CN201510157829.7A patent/CN104764223B/en active Active
- 2014-07-17 CN CN201410339674.4A patent/CN104075463B/en active Active
- 2014-07-17 CN CN201510414397.3A patent/CN105042898B/en active Active
- 2014-07-17 CN CN201510414395.4A patent/CN105066472B/en active Active
- 2014-07-17 CN CN201510414335.2A patent/CN104990289B/en active Active
- 2014-07-17 CN CN201510414334.8A patent/CN104990288B/en active Active
- 2014-07-17 CN CN201610246094.XA patent/CN105910299B/en active Active
- 2014-07-17 CN CN201610246096.9A patent/CN105910301B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2359630Y (en) * | 1998-06-12 | 2000-01-19 | 杨黎明 | High-efficient solar energy heat collecting plate core with convex and concave point |
| CN101949594A (en) * | 2010-09-30 | 2011-01-19 | 北京印刷学院 | Hemispherical light-collecting secondary reflective solar water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104990288B (en) | 2016-08-17 |
| CN105910301A (en) | 2016-08-31 |
| CN105042898A (en) | 2015-11-11 |
| CN104075463B (en) | 2015-09-23 |
| CN105042898B (en) | 2016-08-17 |
| CN105910299A (en) | 2016-08-31 |
| CN104990289A (en) | 2015-10-21 |
| CN104990288A (en) | 2015-10-21 |
| CN105910299B (en) | 2018-01-09 |
| CN104764223A (en) | 2015-07-08 |
| CN105066472B (en) | 2016-08-17 |
| CN104990289B (en) | 2016-08-17 |
| CN105066472A (en) | 2015-11-18 |
| CN105910301B (en) | 2017-11-17 |
| CN104075463A (en) | 2014-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104764223B (en) | The arc tube plate-type solar thermal collector system that a kind of caliber changes | |
| CN104061691B (en) | A kind of solar energy collector system with radiator | |
| CN103528200B (en) | Solar system with parallel connection control auxiliary heating | |
| CN104048423B (en) | Improved solar thermal collector system | |
| CN104075464B (en) | Solar heat collector system with heat storage function | |
| CN105605802A (en) | Intelligent control solar system | |
| CN105783292B (en) | A kind of solar energy collector system | |
| CN103591701B (en) | Solar heat collector coated with heat absorption film and intelligent control system of solar heat collector | |
| CN103486741B (en) | Solar water heater coated with heat absorption film and system of solar water heater | |
| CN104061699A (en) | Solar water heater system | |
| CN103968566B (en) | Solar water heating system with automatic temperature control function and capable of being adjusted intelligently | |
| CN103528216B (en) | Loop heat tube type solar water heater coated by heat absorption films and system thereof | |
| CN103954046A (en) | Solar radiator system | |
| CN104075462A (en) | Intelligently-controlled parallel multi-pipeline solar thermal collector system | |
| CN103954053A (en) | Multi-information fusion intelligent control solar thermal collector system | |
| CN103808018B (en) | Solar energy utilization system for auxiliary heat energy | |
| CN103953965A (en) | Intelligent control solar energy system with radiator arranged in parallel | |
| CN103940116A (en) | Solar energy system with heat utilization devices connected in parallel | |
| CN103940115A (en) | Solar heating system | |
| CN105650904A (en) | Solar energy system | |
| CN104034055A (en) | Solar collector system capable of intelligently controlling bypass of auxiliary heating equipment | |
| CN104075457A (en) | Intelligent temperature control self-adaptive solar-assisted heating system | |
| CN104034062A (en) | Intelligent-control solar radiator system | |
| CN103954047A (en) | Solar system with parallelly connected heat utilization equipment and pipeline | |
| CN103940117A (en) | Solar energy system having auxiliary heating function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180926 Address after: 313000 2599 Hu Jie Avenue, Huzhou, Zhejiang Patentee after: Zhejiang Dadongwu Group Construction New Materials Co., Ltd. Address before: 266075 room 0201, block A, 75 Fuzhou South Road, Shinan District, Qingdao, Shandong. Patentee before: Zhao Wei |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201216 Address after: 233399, 4 floor, building 3, industrial Acceleration Center, Wuhe County Economic Development Zone, Bengbu, Anhui. Patentee after: WUHE ZHIKAI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Patentee after: Zeng Yuee Address before: 313000 No. 2599 weaving Avenue, Huzhou City, Zhejiang Province Patentee before: ZHEJIANG DADONGWU GROUP CONSTRUCTION OF THE NEW MATERIAL Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210909 Address after: 273300 south of the intersection of Wenhua Road and Pingwang Road, Pingyi Economic Development Zone, Pingyi County, Linyi City, Shandong Province Patentee after: Pingyi ren'an traditional Chinese Medicine Industry Development Co.,Ltd. Address before: 233399, 4 floor, building 3, industrial Acceleration Center, Wuhe County Economic Development Zone, Bengbu, Anhui. Patentee before: WUHE ZHIKAI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Patentee before: Zeng Yuee |