CN104061691A - Solar collector system with radiator - Google Patents
Solar collector system with radiator Download PDFInfo
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- CN104061691A CN104061691A CN201410339662.1A CN201410339662A CN104061691A CN 104061691 A CN104061691 A CN 104061691A CN 201410339662 A CN201410339662 A CN 201410339662A CN 104061691 A CN104061691 A CN 104061691A
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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
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Abstract
The invention provides a solar collector system with a radiator. The solar collector system with the radiator comprises a collector, the radiator, a water outlet pipe and a water return pipe, wherein the collector and the radiator are connected through a pipeline, and heated water in the collector enters the radiator through the water outlet pipe and then returns back into the collector through the water return pipe to be heated. According to the solar collector system with the radiator, solar energy is fully utilized, loss of solar heat is avoided, and the effects of environment protection and energy saving are achieved.
Description
Technical field
The invention belongs to field of solar energy, relate in particular to a kind of solar energy collector system with radiator.
Background technology
Along with the high speed development of modern social economy, the mankind are increasing to the demand of the energy.Yet 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 focus that the new energy, particularly free of contamination clean energy resource have become 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 * 10
18kWh is more than 10,000 times of world's year consumption gross energy.Countries in the world are important using the utilization of solar energy as new energy development all, the Chinese government also clearly proposes to want develop actively new forms of energy at < < government work report > > already, and wherein the utilization of solar energy is especially in occupation of prominent position.Yet 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 need to a kind of superfluous heat be made full use of.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of solar energy collector system of auto accumulation heat function, thereby effectively utilizes superfluous solar energy.
To achieve these goals, technical scheme of the present invention is as follows: a kind of solar energy collector system, comprise heat collector, radiator, outlet pipe and return pipe, described heat collector is connected by pipeline with radiator, the water heating in heat collector enters in radiator through outlet pipe, then by return pipe, returns to heat collector and heats.
Described system radiating device comprises upper header and lower collector pipe and the finned tube that is positioned at 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,
The first described secondary fin and the angle between main fin are 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, also comprises heat accumulator system, and the pipeline at described radiator place and the pipeline at storage heater place are parallel-connection structure; Described heat collector is communicated with formation closed circuit with storage heater, heat collector is communicated with formation closed circuit with radiator, water after heat collector heating enters respectively storage heater and radiator by outlet pipeline, in storage heater, carry out heat exchange, heat is stored in storage heater, in radiator, carry out heat exchange, the water flowing out in storage heater and in radiator carries out heat exchange in entering heat collector 1 through water return pipeline.
The first valve is arranged on outlet pipe, for controlling the total water yield that enters storage heater and radiator, the second valve is arranged on the position of inlet tube of the pipeline at radiator place, for controlling the flow of the water that enters radiator, the 3rd valve is arranged on the position of inlet tube of the pipeline at storage heater place, for controlling the flow of the water that enters storage heater, temperature sensor is arranged on the position of the entrance of radiator, for measuring the temperature of the water that enters radiator; Described system also comprises central controller, and described central controller carries out data and is connected with the first valve, the second valve, the 3rd valve, temperature sensor;
When the temperature of temperature sensor measurement is lower than certain temperature time, central controller controls the second valve strengthens aperture, controls the 3rd valve simultaneously and reduces aperture, to strengthen the flow of the hot water that enters radiator, strengthens heat dissipation capacity; When the temperature of temperature sensor measurement is higher than certain temperature time, central controller controls the second valve reduces aperture, controls the 3rd valve simultaneously and strengthens aperture, to reduce the flow of the hot water that enters radiator, strengthens heat dissipation capacity.
The indoor temperature of measuring radiator place by indoor temperature transmitter is set is controlled the flow of the water that enters radiator automatically, if indoor temperature is too low, increase the flow of the water that enters radiator, if indoor temperature is too high, reduce the flow of the water that enters radiator.
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 storage of solar energy is got up, so that follow-up use.
2) provide a kind of new heat-storing material, met accumulation of heat demand;
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) the present invention carries out meticulous selection and experiment to the material of heat-sink shell and thickness, has reached the technique effect of best heat absorption.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of solar energy collector system
Fig. 2 is the structural representation of storage heater
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 storage heaters, 3 radiators, 4 valves, 5 valves, 6 temperature sensors, 7 storage heater 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 housings, 15 heat-storing materials, 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.
The specific embodiment
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, storage heater 2 and radiator 3, valve 4, valve 5, valve 18, temperature sensor 6, described heat collector 1 is communicated with formation closed circuit with storage heater 2, heat collector 1 is communicated with formation closed circuit with radiator 3, the pipeline at storage heater 2 and radiator 3 places is in parallel, heat collector 1 absorbs solar energy, water in heating heat collector 1, water after heating enters respectively storage heater 2 and radiator 3 by outlet pipeline 8, in storage heater 2, carry out heat exchange, heat is stored in the heat-storing material of storage heater 2, in radiator 3, carry out heat exchange, the water flowing out in storage heater 2 and in radiator 3 carries out heat exchange in entering heat collector 1 through water return pipeline 17.
In said system, by solar energy, when carrying out accumulation of heat to storage heater, can utilize radiator outwards to dispel the heat.Certainly, storage heater and radiator 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 storage heater 2 and radiator 3, valve 5 is arranged on the position of 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 inlet tube 7 of the pipeline at storage heater 2 places, for controlling the flow of the water that enters storage heater 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 apertures, and by-pass valve control 18 reduces apertures simultaneously, to strengthen the flow of the hot water that enters radiator 3, strengthens heat dissipation capacity.The temperature of measuring when temperature sensor 6 is higher than certain temperature time, and central controller controls valve 5 reduces apertures, and by-pass valve control 18 strengthens apertures simultaneously, to reduce the flow of the hot water that enters radiator 3, strengthens heat dissipation capacity.
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 there is no the sun, now valve 4 can be closed automatically, valve 5 and valve 18 can be opened completely, the pipeline at storage heater and radiator place forms a circulation line, water enters in storage heater and absorbs the heat of storing in storage heater, and 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, unnecessary heat is stored by storage heater 2, the in the situation that of solar thermal collector 1 heat capacity deficiency, the heat in storage heater 2 is made full use of, to meet the radiating requirements of radiator 3.Can make full use of solar energy like this, 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, a prerequisite controlling flow by indoor temperature is that the temperature measured of temperature sensor 6 need to be higher than uniform temperature, otherwise in the time of the thermal-arrest ability variation of solar thermal collector, in any case increase flow, radiating effect can be not fine.
When the pipeline at storage heater and radiator place forms a circulation line, the temperature of measuring when temperature sensor 6 is lower than certain temperature time, central controller controls valve 5 strengthens aperture, by-pass valve control 18 strengthens aperture simultaneously, to strengthen the flow of the hot water that enters radiator 3, strengthens heat dissipation capacity.The temperature of measuring when temperature sensor 6 is higher than certain temperature time, and central controller controls valve 5 reduces apertures, and by-pass valve control 18 reduces apertures simultaneously, to reduce the flow of the hot water that enters radiator 3, strengthens heat dissipation capacity.Valve 5 now and 15 aperture are consistent.
By such control, can rationally utilize the heat of storage heater, avoid the loss of heat.
As shown in Figure 2, described storage heater 2 comprises housing 14 to the structure of described storage heater 2, is provided with heat-storing material 15 in housing 14, and water pipe is arranged in heat-storing material 15, and described water pipe is coiled pipe structure in housing.In water pipe, water and heat-storing material carry out heat exchange, transfer heat to heat-storing material 15.
Preferably, the space that heat-storing material is filled housing is the 90-95% of housing volume, causes housing to damage to prevent expanded by heating.
Described heat-storing material is ceramic material, and the mass component of described ceramic material is as follows: SiO
230-32%, 5.1-5.3%Li
2o, 6.5-7.8%TiO
2, 3.3-3.5%MgO, 1.0-1.3%La
2o
3, 2.45-2.55%BaO, remaining is Al
2o
3.
Preferably, SiO
231%, 5.22%Li
2o, 6.85%TiO
2, 3.4%MgO, 1.1%La
2o
3, 2.5%BaO, remaining is Al
2o
3.
Above-mentioned heat-storing material is the result obtaining by test of many times, has very high heat storage capacity, has met the absorbing heat in solar energy system running completely.
As preferably, set temperature sensor 19 on the outlet pipeline 8 of heat collector, for measuring the temperature of the water outlet of heat collector, storage heater set temperature sensor (not shown) is for measuring the temperature of heat-storing material simultaneously.In the inlet tube 7 of storage heater, valve 18 is set, when valve 4 is opened, when the leaving water temperature of measuring is lower than the temperature of heat-storing material time, valve 18 is closed.When the leaving water temperature of measuring is higher than the temperature of heat-storing material time, valve 18 is opened.Avoid like this storage heater by heat the water in passing to water pipe, caused the loss of the heat in storage heater, to guarantee that storage heater can store abundant heat.
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 the finned tube that is positioned at lower collector pipe.Described finned tube is cylindricality finned tube, described finned tube comprises and is positioned at the cuboid 9 of 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, finned tube is symmetrical along the formed level crossing picture of square diagonal, and the plane of while along the line formation at the mid point place of foursquare two opposite side is also that mirror image is symmetrical.
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, when 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 the increase along with 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, affected 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 a plurality of different sizes.
The first described secondary fin and the angle between main fin are 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.Preferred 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 the center from secondary fin starts to count.
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 that secondary fin 13 is perpendicular to a limit at main fin diagonal angle, because secondary fin is parallel to each other, makes the second secondary fin perpendicular to the foursquare limit of 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, comprise thermal-collecting tube 20, thermal-collecting tube 20 is flat tube, described flat tube is parabolic shape structure or arc-shaped structure, 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 thermal-collecting tube 19 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 in thermal-collecting tube, the reverberation of thermal-collecting tube reflexes to thermal-collecting tube 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 width of the upper lower wall surface 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 width, can be so that 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 22 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 be so that 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 be so that 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 successively
2o
3three layers, the thickness proportion of three layers is 10:3:4; Antireflection coatings is from inside to outside Nb successively
2o
5, Al
2o
3, SiO
2and Si
3n
4four 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 material of each layer of infrared reflecting layer and antireflection layer, also can realize the degree reducing sun reflection of light.
Above-mentioned dimension scale is the best result getting by nearly hundred kinds of different thickness proportion tests.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, so protection scope of the present invention should be as the criterion with claim limited range.
Claims (5)
1. a solar energy collector system, comprise heat collector, radiator, outlet pipe and return pipe, described heat collector is connected by pipeline with radiator, and the water heating in heat collector enters in radiator through outlet pipe, then by return pipe, returns to heat collector and heats.
2. according to the solar energy collector system of claim 1, it is characterized in that, described system radiating device comprises upper header and lower collector pipe and the finned tube that is positioned at 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,
The first described secondary fin and the angle between main fin are 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。
3. solar energy collector system according to claim 1, also comprises heat accumulator system, and the pipeline at described radiator place and the pipeline at storage heater place are parallel-connection structure; Described heat collector is communicated with formation closed circuit with storage heater, heat collector is communicated with formation closed circuit with radiator, water after heat collector heating enters respectively storage heater and radiator by outlet pipeline, in storage heater, carry out heat exchange, heat is stored in storage heater, in radiator, carry out heat exchange, the water flowing out in storage heater and in radiator carries out heat exchange in entering heat collector through water return pipeline.
4. solar energy collector system according to claim 3, the first valve is arranged on outlet pipe, for controlling the total water yield that enters storage heater and radiator, the second valve is arranged on the position of inlet tube of the pipeline at radiator place, for controlling the flow of the water that enters radiator, the 3rd valve is arranged on the position of inlet tube of the pipeline at storage heater place, for controlling the flow of the water that enters storage heater, temperature sensor is arranged on the position of the entrance of radiator, for measuring the temperature of the water that enters radiator; Described system also comprises central controller, and described central controller carries out data and is connected with the first valve, the second valve, the 3rd valve, temperature sensor;
When the temperature of temperature sensor measurement is lower than certain temperature time, central controller controls the second valve strengthens aperture, controls the 3rd valve simultaneously and reduces aperture, to strengthen the flow of the hot water that enters radiator, strengthens heat dissipation capacity; When the temperature of temperature sensor measurement is higher than certain temperature time, central controller controls the second valve reduces aperture, controls the 3rd valve simultaneously and strengthens aperture, to reduce the flow of the hot water that enters radiator, strengthens heat dissipation capacity.
5. solar energy collector system according to claim 1, the indoor temperature of measuring radiator place by indoor temperature transmitter is set is controlled the flow of the water that enters radiator automatically, if indoor temperature is too low, increase the flow of the water that enters radiator, if indoor temperature is too high, reduce the flow of the water that enters radiator.
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