CN203809222U - Solar comprehensive utilization system - Google Patents
Solar comprehensive utilization system Download PDFInfo
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- CN203809222U CN203809222U CN201420105270.4U CN201420105270U CN203809222U CN 203809222 U CN203809222 U CN 203809222U CN 201420105270 U CN201420105270 U CN 201420105270U CN 203809222 U CN203809222 U CN 203809222U
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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
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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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
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a solar comprehensive utilization system. The solar comprehensive utilization system comprises a solar photovoltaic and photo-thermal power generation system, a heat pump system and a user heat exchange device. The solar energy is converted into the electric energy and the kinetic energy in a high conversion rate through the solar photovoltaic and photo-thermal power generation system and the heat pump system is combined with the user heat exchange device with the electric energy and the kinetic energy as the power to achieve the air conditioning refrigeration cycle and heating cycle. According to the solar comprehensive utilization system, concentrating photovoltaic power generation is combined with concentrating photo-thermal power generation through the solar photovoltaic and photo-thermal power generation system, the thermal energy generated in the process of the concentrating photovoltaic power generation is further collected, and accordingly the utilization rate of the solar energy is further improved on the basis of the traditional utilization of the photovoltaic power generation and accordingly the refrigeration and heating efficiency of the solar comprehensive utilization system is improved.
Description
Technical field
The utility model relates to application of solar, particularly relates to a kind of solar energy composite and utilizes system.
Background technique
Under the environment of global warming, solar energy, as outstanding new energy representative, enjoys the favor of countries in the world.Under low-carbon energy-saving trend, taking photothermal technique as main solar energy has been applied to every profession and trade, constantly improving energy resource structure.
Summer, the power consumption of air-conditioning accounts for 1/3rd of whole electric power system total electricity consumption conventionally, account for 70% of home-use electric weight, this is the main cause that summer, electric power system can't bear the heavy load, and the utilization of solar airconditioning has alleviated air-conditioning power consumption having a strong impact on electric power system.When heating, solar airconditioning taking solar energy as main energy sources, converts solar energy into the heating of heat energy; When refrigeration, moisture absorption/the vaporization cycle that adopt realize refrigeration more.
But current solar airconditioning is in the time utilizing solar energy to freeze or heat, the utilization ratio of solar energy is not high, cause solar airconditioning refrigeration or the efficiency that heats not high yet.
Model utility content
Based on this, be necessary for solar airconditioning mode of operation unreasonablely, the inefficient problem that causes solar airconditioning refrigeration or heat, provides the solar energy composite that a kind of solar energy utilization ratio is high to utilize system.
A kind of solar energy composite utilizes system, comprising:
The photovoltaic, solar-thermal generating system, heat pump and the user's heat-exchanger rig that connect successively; Wherein, described photovoltaic, solar-thermal generating system comprise:
Interconnective concentration photo-thermal receiver and middle high-temperature heat-storage heat-exchanger rig, described middle high-temperature heat-storage heat-exchanger rig stores the heat energy of described concentration photo-thermal receiver generation and conducts;
Interconnective concentration photovoltaic receiver and low-temperature heat exchange device, the heat energy that described low-temperature heat exchange device produces while gathering described concentration photovoltaic receiver heat radiation also conducts;
Interconnective decompressor and cooling unit, described decompressor and cooling unit are respectively by middle high-temperature heat-storage heat-exchanger rig and low-temperature heat exchange device described in pump and pipeline connection; Described low-temperature heat exchange device, middle high-temperature heat-storage heat-exchanger rig, decompressor, cooling unit and pump form Rankine cycle loop;
DC-to-AC converter, connects described concentration photovoltaic receiver; Described concentration photovoltaic receiver is by described DC-to-AC converter output AC electricity;
Described heat pump connects described decompressor or DC-to-AC converter.
In an embodiment, described photovoltaic, solar-thermal generating system also comprise motor therein, and described decompressor connects described heat pump by described motor.
In an embodiment, described middle high-temperature heat-storage heat-exchanger rig comprises therein:
Middle high temperature liquid container, described middle high temperature liquid container is full of the agent of fuse salt heat accumulation;
The 3rd heat exchanger, is placed in described high temperature liquid container, comprises the 3rd working medium entrance and the 3rd sender property outlet, and described the 3rd working medium entrance is connected described concentration photo-thermal receiver by pipeline respectively with the 3rd sender property outlet; Wherein, described in described pipeline hot connecting concentration photo-thermal receiver be subject to optical cavity body;
The 4th heat exchanger, is placed in described high temperature liquid container, comprises the 4th working medium entrance and the 4th sender property outlet, and described the 4th working medium entrance and the 4th sender property outlet are respectively by low-temperature heat exchange device and described decompressor described in pipeline connection.
In an embodiment, described low-temperature heat exchange device comprises therein:
Low temperature liquid storage heat exchange tank, is filled with anti-freeze cooling liquid, and is provided with cooling liquid entrance and cooling liquid outlet, and described cooling liquid entrance and cooling liquid outlet are respectively by the radiator of concentration photovoltaic receiver described in pipeline connection;
The 5th heat exchanger, is placed in described low temperature liquid storage heat exchange tank, comprises the 5th working medium entrance and the 5th sender property outlet, and described the 5th working medium entrance and the 5th sender property outlet are respectively by cooling unit and middle high-temperature heat-storage heat-exchanger rig described in pipeline connection.
Therein in an embodiment, the described concentration photo-thermal receiver slot type point concentration photo-thermal reception unit that is as the criterion.
Therein in an embodiment, the described concentration photovoltaic receiver slot type point condensation photovoltaic reception unit that is as the criterion.
In an embodiment, described accurate slot type point condensation photovoltaic reception unit comprises therein:
Support device, comprises support and base, and described base is symmetrically distributed in described support both sides;
Multiple somes collective opticses, are symmetrically distributed on the base of described support both sides, form accurate slot type structure, receive and converge sunlight;
Multiple photoelectric conversion devices, be positioned at one end that described support is relative with described base, described photoelectric conversion device and described collective optics quantity equates and is corresponding one by one with described some collective optics, and the light-receiving mouth of described photoelectric conversion device is towards corresponding some collective optics and be positioned at the optically focused focus place of corresponding some collective optics; Described multiple somes collective opticses receive and converge sunlight, and the sunlight that described multiple photoelectric conversion devices converge described some collective optics is converted to electric energy.
In an embodiment, described heat pump comprises First Heat Exchanger, expansion valve and second heat exchanger of compressor, selector valve and connection therein;
Described compressor, connects described decompressor or DC-to-AC converter, for the electric energy compressed refrigerant of the kinetic energy that produces by described decompressor or the output of described DC-to-AC converter;
Described selector valve, is provided with first end, the second end, the 3rd end and the 4th end, and described first end, the second end are communicated with respectively input end and the output terminal of described compressor; Described the 3rd end is communicated with described First Heat Exchanger; Described the 4th end is communicated with described the second heat exchanger; Described user's heat-exchanger rig connects described the second heat exchanger by pipeline.
In an embodiment, described First Heat Exchanger is ground source heat exchanger therein.
In an embodiment, described the second heat exchanger is water storage heat exchanger or ice storage heat exchanger therein.
Above-mentioned solar energy composite utilizes system, by using photovoltaic, solar-thermal generating system to convert solar energy into electrical energy and kinetic energy with high conversion, heat pump, taking above-mentioned electric energy or kinetic energy as power, is realized the refrigeration cycle of air-conditioning and heats circulation in conjunction with user's heat-exchanger rig.Photovoltaic, solar-thermal generating system convert solar energy into heat energy by concentration photo-thermal receiver, the heat energy producing while converting solar energy into electrical energy and gather described concentration photovoltaic receiver heat radiation by concentration photovoltaic receiver, the conversion of heat into kinetic energy producing when the heat energy described concentration photo-thermal receiver being produced by Rankine cycle and the heat radiation of described concentration photovoltaic receiver.Above-mentioned photovoltaic, solar-thermal generating system combine concentrating photovoltaic power generation with concentration photo-thermal generating, and further gather the heat energy producing in concentrating photovoltaic power generation process, utilize in tradition on the basis of photovoltaic generation, further improve the utilization ratio of solar energy, utilized the refrigeration of system and the efficiency heating thereby improved above-mentioned solar energy composite.
Brief description of the drawings
Fig. 1 is that the utility model one embodiment's solar energy composite utilizes system schematic;
Fig. 2 is that another embodiment's of the utility model solar energy composite utilizes system schematic;
Fig. 3 is the schematic diagram of middle photovoltaic embodiment illustrated in fig. 2, solar-thermal generating system;
Fig. 4 is photovoltaic in another embodiment, solar-thermal generating system schematic diagram;
Fig. 5 is that another embodiment's of the utility model solar energy composite utilizes system schematic;
Fig. 6 be pipeline hot connecting concentration photo-thermal receiver embodiment illustrated in fig. 4 be subject to optical cavity body section figure;
Fig. 7 is accurate slot type point Photospot solar utilized device schematic diagram of the embodiment;
Fig. 8 is another embodiment's accurate slot type point Photospot solar utilized device schematic diagram;
Fig. 9 is the support one side point collective optics embodiment illustrated in fig. 8 plan view of arranging;
Figure 10 is receiving port schematic diagram embodiment illustrated in fig. 8;
Figure 11 is the reference angle schematic diagram of embodiment illustrated in fig. 8 some collective optics with respect to corresponding photoelectric conversion device;
Figure 12 is photoelectric conversion device schematic diagram embodiment illustrated in fig. 8;
Figure 13 is photoelectric conversion device schematic diagram in another embodiment.
Embodiment
A kind of solar energy composite utilizes system, by concentration photo-thermal technology and condensation photovoltaic technology are combined, and in the process that is electric energy by light energy conversion at condensation photovoltaic, the heat energy of failing to be converted into electric energy is further converted to kinetic energy, improve the utilization ratio of solar energy, further improved solar energy composite and utilize the generating efficiency of system; In the time that above-mentioned solar energy composite utilizes system for refrigeration or cooling/heating air conditioner, improve the refrigeration of existing solar airconditioning and the efficiency heating, further save electric energy.Above-mentioned solar energy composite utilizes system when solar energy is sufficient by day, to carry out energy storage, and during without sunlight, can be heated or be freezed by the energy storing in water storage heat exchanger or ice storage heat exchanger night, further saved electric energy.
Utilize system to be further elaborated below in conjunction with drawings and Examples to a kind of solar energy composite of the utility model.
Shown in Fig. 1, for the utility model one embodiment's solar energy composite utilizes system schematic.With reference to figure 1, a kind of solar energy composite utilizes system 500, comprises photovoltaic, the solar-thermal generating system 520, heat pump 540 and the user's heat-exchanger rig 560 that connect in turn.
Photovoltaic, solar-thermal generating system 520 convert solar energy into heat energy by concentration photo-thermal receiver (not shown), the heat energy producing while converting solar energy into electrical energy and gather concentration photovoltaic receiver heat radiation by concentration photovoltaic receiver (not shown), the conversion of heat into kinetic energy producing when heat energy concentration photo-thermal receiver being produced by Rankine cycle and concentration photovoltaic receiver heat radiation.Heat pump 540 passes through above-mentioned kinetic energy or electric energy, and completes refrigeration cycle and/or heat circulation in conjunction with user's heat-exchanger rig 560.
Above-mentioned solar energy composite utilizes system 500, by using photovoltaic, solar-thermal generating system 520 to convert solar energy into electrical energy and kinetic energy with high conversion, heat pump 540, taking above-mentioned electric energy or kinetic energy as power, is realized the refrigeration cycle of air-conditioning and heats circulation in conjunction with user's heat-exchanger rig 560.Above-mentioned photovoltaic, solar-thermal generating system 520 combine concentrating photovoltaic power generation with concentration photo-thermal generating, and further gather the heat energy producing in concentrating photovoltaic power generation process, utilize in tradition on the basis of photovoltaic generation, further improve the utilization ratio of solar energy, utilize the refrigeration of system 500 and the efficiency heating thereby improved above-mentioned solar energy composite, further saved electric energy.
Shown in Fig. 2, for another embodiment's of the utility model solar energy composite utilizes system schematic.With reference to figure 2, a kind of solar energy composite utilizes system 600, comprises photovoltaic, the solar-thermal generating system 620, heat pump 640 and the user's heat-exchanger rig 660 that connect in turn.Above-mentioned heat pump 640 comprises compressor 642, selector valve 644 and the First Heat Exchanger 646, expansion valve 648 and the second heat exchanger 649 that are communicated with.Compressor 642 connects above-mentioned photovoltaic, solar-thermal generating system 620, the input end of compressor 642 and output terminal (figure is mark not) are communicated with respectively first end 1 and second end 2 of selector valve 644, the 3rd end 3 of selector valve 644 is communicated with First Heat Exchanger 646, and the 4th end 4 of selector valve 644 is communicated with above-mentioned the second heat exchanger 649.User's heat-exchanger rig 660 connects above-mentioned the second heat exchanger 649 by pipeline.
When above-mentioned first end 1 is communicated with the 3rd end 3, above-mentioned the second end 2 is communicated with the 4th end 4, and heat pump 640 completes air-conditioning heating circulation in conjunction with user's heat-exchanger rig 660; When the second end 2 is communicated with the 3rd end 3, first end 1 and the 4th end 4 are communicated with, and heat pump 640 completes air conditioner refrigerating circulation in conjunction with user's heat-exchanger rig 660.
Heat circulation time: compressor 642 compresses refrigeration agent by kinetic energy and/or electric energy the refrigerant gas that obtains High Temperature High Pressure, the refrigerant gas of above-mentioned High Temperature High Pressure transfers to the second heat exchanger 649 by output terminal, the selector valve 644 of compressor 642, now, the refrigerant gas heat release of High Temperature High Pressure conduction, to user's heat-exchanger rig 660, realize the heating to user environment.Refrigeration agent pressure decreased, temperature after expansion valve 648 through the second heat exchanger 649 reduce, and absorb heat, and continue to be circulated to compressor 642 through selector valve 644 while being circulated to First Heat Exchanger 646, complete and once heat circulation.
When refrigeration cycle: compressor 642 compresses refrigeration agent by kinetic energy and/or electric energy the refrigerant gas that obtains High Temperature High Pressure, the refrigerant gas of above-mentioned High Temperature High Pressure transfers to First Heat Exchanger 646 by output terminal, the selector valve 644 of compressor 642, now, the heat release to external world of the refrigerant gas of High Temperature High Pressure, after expansion valve 648, pressure decreased, temperature reduce, while being circulated to the second heat exchanger 649, absorb heat, take away the heat of user's heat-exchanger rig 660, the temperature that further reduces user environment, completes refrigeration cycle one time.
Concrete, above-mentioned First Heat Exchanger 646 is ground source heat exchanger (not shown).The one that ground source heat exchanger is cooling unit, carries out heat exchange by underground water temperature.Concrete, the temperature in source, above-mentioned ground is about 15 DEG C.
Above-mentioned First Heat Exchanger 646 can be also air heat exchanger, to atmosphere heat exchange.
Concrete, above-mentioned the second heat exchanger 649 is water storage heat exchanger or ice storage heat exchanger.Above-mentioned solar energy composite utilizes system 600 in the time that sunlight is sufficient, is completed above-mentioned refrigeration cycle or is heated circulation by the energy of sunlight.
When heating circulation time, by above-mentioned water storage heat exchanger store heat; When night or solar energy quantity not sufficient, the energy storing by above-mentioned water storage heat exchanger completes and heats circulation, has further saved electric energy, has improved solar energy composite and utilize the rate that heats of system 600.In the time of refrigeration cycle, by ice storage heat exchanger storage of cold, when night or solar energy quantity not sufficient, the energy storing by above-mentioned ice storage heat exchanger completes refrigeration cycle, has further saved electric energy, has improved solar energy composite and utilize the duty of system 600.
Shown in Fig. 3, it is the schematic diagram of middle photovoltaic embodiment illustrated in fig. 2, solar-thermal generating system.With reference to figure 3, by photovoltaic, solar-thermal generating system 100, above-mentioned photovoltaic, solar-thermal generating system 620 are described in more detail.
With reference to figure 3, a kind of photovoltaic, solar-thermal generating system 100, comprise concentration photo-thermal receiver 120, middle high-temperature heat-storage heat-exchanger rig 140, concentration photovoltaic receiver 160, low-temperature heat exchange device 180, decompressor 190, cooling unit 170 and DC-to-AC converter 150.
Above-mentioned middle high-temperature heat-storage heat-exchanger rig 140 connects concentration photo-thermal receiver 120, low-temperature heat exchange device 180 connects concentration photovoltaic receiver 160 and middle high-temperature heat-storage heat-exchanger rig 140, and decompressor 190 and cooling unit 170 are respectively by high-temperature heat-storage heat-exchanger rig 140 and low-temperature heat exchange device 180 in pipeline connection.Concentration photo-thermal receiver 120 receives solar energy and is converted into heat energy, the optical cavity body (not shown) that is subject to that middle high-temperature heat-storage heat-exchanger rig 140 is wound around concentration photo-thermal receiver 120 by pipeline connects above-mentioned concentration photo-thermal receiver 120, and the heat energy that storage concentration photo-thermal receiver 120 produces also further conducts.Concentration photovoltaic receiver 160 receives sunlight and is converted to electric energy, further by DC-to-AC converter 150 output AC electricity.In the process that is electric energy by transform light energy at above-mentioned concentration photovoltaic receiver 160, there is part solar energy to be converted to heat energy, low-temperature heat exchange device 180 gathers the above-mentioned heat energy that is not converted to electric energy, and gives middle high-temperature heat-storage heat-exchanger rig 140 by pipeline by above-mentioned thermal energy conduction; The conduction of above-mentioned heat energy refers to, and by working medium is heated, by pipeline, working medium is conducted, and completes the conduction to heat energy; The working medium that above-mentioned middle high-temperature heat-storage heat-exchanger rig 140 conducts above-mentioned low-temperature heat exchange device 180 again heats laggard row and further conducts.Decompressor 190 and cooling unit 170 are respectively by the above-mentioned middle high-temperature heat-storage heat-exchanger rig 140 of pipeline connection and low-temperature heat exchange device 180 and form Rankine cycle loop, above-mentioned Rankine cycle is kinetic energy by the thermal power transfer in photovoltaic, solar-thermal generating system 100, and above-mentioned kinetic energy can further be converted to electric energy.
Above-mentioned photovoltaic, solar-thermal generating system 100, concentrating photovoltaic power generation is combined with concentration photo-thermal generation technology, and further gather loose thermogenetic heat energy in concentrating photovoltaic power generation process, utilized in tradition on the basis of photovoltaic generation, further improved the utilization ratio of solar energy.Above-mentioned photovoltaic, solar-thermal generating system 100 have solved while only using photothermal power generation that solar energy utilization ratio is not high, the poor problem of the stability of a system while only using photovoltaic generation, and have further improved on this basis the utilization rate of solar energy.
In another embodiment, above-mentioned DC-to-AC converter 150 further connects above-mentioned compressor 642 by connecting motor (not shown), the electric energy drive motor of exporting by DC-to-AC converter 150, thus drive compressor 642.
Fig. 4 is photovoltaic in another embodiment, solar-thermal generating system schematic diagram.
With reference to figure 4, a kind of photovoltaic, solar-thermal generating system 200, comprise concentration photo-thermal receiver 202, middle high-temperature heat-storage heat-exchanger rig 204, concentration photovoltaic receiver 208, low-temperature heat exchange device 212, decompressor 216, cooling unit 218 and DC-to-AC converter 210.
Above-mentioned middle high-temperature heat-storage heat-exchanger rig 204 is subject to optical cavity body (not shown) by pipeline hot connecting concentration photo-thermal receiver 202, low-temperature heat exchange device 212 connects the radiator (not shown) of concentration photovoltaic receiver 208 by pipeline, low-temperature heat exchange device 212 is by high-temperature heat-storage heat-exchanger rig 204 in pipeline connection, concentration photovoltaic receiver 208 interconnection inverter device 210 output AC electricity; Decompressor 216 and cooling unit 218 pass through respectively high-temperature heat-storage heat-exchanger rig 204 and low-temperature heat exchange device 212 in pipeline connection, and form Rankine cycle loop, and above-mentioned Rankine cycle is kinetic energy by the thermal power transfer in photovoltaic, solar-thermal generating system 200.As required, above-mentioned kinetic energy can further be converted to electric energy.
Concrete, above-mentioned pipeline is the thermo-insulating pipe line that is coated with thermal insulating material.
Further, above-mentioned photovoltaic, solar-thermal generating system 200 also comprise motor 220, above-mentioned motor 220 connects decompressor 216, is converted to electric energy for the kinetic energy that above-mentioned Rankine cycle is produced, and further connects external circuit by switch 222 above-mentioned electric energy is exported.Above-mentioned motor 220 connects above-mentioned compressor 642(figure and does not show), be used to compressor 642 that power is provided.Above-mentioned DC-to-AC converter 210 also can be by connecting above-mentioned motor 220 further for compressor 642 provides power, further improve the solar energy utilization ratio that solar energy composite utilizes system, thereby improved solar energy composite and utilize refrigerating efficiency and the heating efficiency of system.
Concrete, with reference to figure 4, above-mentioned middle high-temperature heat-storage heat-exchanger rig 204 comprises: middle high temperature liquid container 2042, the 3rd heat exchanger 2044 and the 4th heat exchanger 2046.
Above-mentioned middle high-temperature heat-storage tank 2042 seals and is full of the agent of fuse salt heat accumulation, for store heat.Concrete, the agent of above-mentioned fuse salt heat accumulation is the agent of nitrate heat accumulation.Above-mentioned First Heat Exchanger 2044 is tubular exchanger, be placed in above-mentioned high-temperature heat-storage tank 2042 and stretch out from above-mentioned high-temperature heat-storage tank 2042 by the first working medium entrance a and the first sender property outlet b, above-mentioned the first working medium entrance a is connected above-mentioned concentration photo-thermal receiver 202 by pipeline respectively with the first sender property outlet b.In the tubulose loop that above-mentioned First Heat Exchanger 2044 and above-mentioned pipeline form, be full of high temperature resistant working medium, the thermal energy conduction of concentration photo-thermal receiver 202 being changed by above-mentioned high temperature resistant working medium is given the fuse salt heat accumulation agent in above-mentioned high temperature liquid container, and fuse salt heat accumulation agent absorption heat changes to mutually liquid state above-mentioned heat energy is stored.Concrete, above-mentioned First Heat Exchanger 2044 is high temperature resistant working fluid heat exchanger, for by high temperature resistant working medium circulation heat exchange.Concrete, above-mentioned high temperature resistant working medium is air or thermostable heat-conductive oil.In other embodiment, above-mentioned high temperature resistant working medium also can be selected other high temperature resistant working medium.
With reference to figure 4, above-mentioned the 3rd sender property outlet b is connected above-mentioned concentration photo-thermal receiver 202 with thermo-insulating pipe line by pump 206.Provide power by pump 206, above-mentioned the 3rd heat exchanger 2044 and the high temperature resistant working medium in the thermo-insulating pipe line being attached thereto are formed to circulation, the thermal energy conduction that concentration photo-thermal receiver 202 is produced continuing is given the fuse salt heat accumulation agent in above-mentioned high temperature liquid container.
Shown in Fig. 5, for another embodiment's of the utility model solar energy composite utilizes system schematic.
With reference to 5, above-mentioned cooling unit 218 is ground source heat exchanger.Above-mentioned First Heat Exchanger 646 can be integrated into a ground source heat exchanger (figure is mark not) with above-mentioned cooling unit 218, and realizes function separately simultaneously.Concrete, in the present embodiment, the temperature in source, above-mentioned ground is about 15 DEG C.
Shown in Fig. 6, it is the sectional view that is subject to optical cavity body of pipeline hot connecting concentration photo-thermal receiver embodiment illustrated in fig. 4.
With reference to figure 6, the above-mentioned concentration photo-thermal receiver 202 of above-mentioned pipeline hot connecting be subject to optical cavity body 2022.Above-mentionedly be subject to the heat absorption that optical cavity body 2022 produces concentration photo-thermal receiver 202 and conduct by being wound around.Concrete, above-mentioned pipeline and the above-mentioned part that is subject to the non-receiving surface of optical cavity body, be coated with thermal insulating material, prevents heat energy loss.
With reference to figure 4, above-mentioned the 4th heat exchanger 2046 is placed in high temperature liquid container 2042, for tubular exchanger, comprise the 4th working medium entrance c and the 4th sender property outlet d, above-mentioned the 4th working medium entrance c and the 4th sender property outlet d stretch out above-mentioned middle high temperature liquid container 2042 and pass through respectively pipeline connection low-temperature heat exchange device 212 and decompressor 216.Concrete, in the tubulose loop that above-mentioned the 4th heat exchanger 2046 and pipeline form, be full of organic working medium.Concrete, above-mentioned the 4th heat exchanger 2046 is organic working medium radiator, for being kinetic energy by organic working medium by the thermal power transfer in above-mentioned Rankine cycle loop.Concrete, above-mentioned organic working medium is R134a refrigeration agent etc.
Concrete, above-mentioned photovoltaic, solar-thermal generating system 200 comprise the low-temperature heat exchange device 212 of several cascades, for concentration photovoltaic receiver 208 is lowered the temperature step by step.With reference in embodiment illustrated in fig. 4, comprise three above-mentioned low-temperature heat exchange devices 212.
Concrete, above-mentioned each low-temperature heat exchange device 212 comprises low temperature liquid storage heat exchange tank 2122 and the 5th heat exchanger 2124.Each low temperature liquid storage heat exchange tank 2122 is respectively equipped with cooling liquid entrance e and cooling liquid outlet f, the 5th heat exchanger 2124 is tubular exchanger, be placed in above-mentioned low temperature liquid storage heat exchange tank 2122, and stretch out respectively low temperature liquid storage heat exchange tank 2122 by the 5th working medium entrance g and the 5th sender property outlet h.
Cooling liquid outlet f between each low-temperature heat exchange device 212 is interconnected with the cooling liquid entrance e of next low-temperature heat exchange device 212 by pump 206, and the 5th working medium entrance g of the 5th sender property outlet h between each low-temperature heat exchange device 212 and a upper low-temperature heat exchange device 212 is interconnected.The cooling liquid entrance e at the cascade structure two ends that low-temperature heat exchange device 212 forms is connected concentration photovoltaic receiver 208 with cooling liquid outlet f by pipeline, the 5th working medium entrance g is communicated with the 4th working medium entrance c that cooling unit 218, the five sender property outlet h are communicated with above-mentioned middle high-temperature heat-storage heat-exchanger rig 204.
In above-mentioned low temperature liquid storage heat exchange tank 2122, be filled with anti-freeze cooling liquid, between low temperature liquid storage heat exchange tank 2122, be interconnected by cooling liquid outlet f and cooling liquid entrance e, and the cooling liquid outlet f that passes through two ends is connected the radiator of concentration photovoltaic receiver 208 with cooling liquid entrance e, the heat energy heating and anti-freezing cooling liquid producing when concentration photovoltaic receiver 208 dispels the heat, heated anti-freeze cooling liquid enters low temperature liquid storage heat exchange tank 2122 and stores heat exchange, re-circulate to concentration photovoltaic receiver 208 through the anti-freeze cooling liquid of heat exchange cooling and form heat-radiation loop, form the circulation of anti-freeze cooling liquid, realizing the heat energy that concentration photovoltaic receiver 208 is dispelled the heat constantly conducts in low-temperature liquid storage tank.
In the cascade structure of above-mentioned low-temperature heat exchange device 212, between the 5th heat exchanger 2124, be interconnected by the 5th sender property outlet h and the 5th working medium entrance g, and the 5th sender property outlet h by two ends and the 5th working medium entrance g be communicated with respectively in the 4th working medium entrance c and the cooling unit 218 of high-temperature heat-storage heat-exchanger rig 204, form the Rankine cycle of organic working medium, having realized when concentration photovoltaic receiver 208 is dispelled the heat the heat energy that the heat energy that produces and concentration photo-thermal receiver 202 produce all conducts in above-mentioned Rankine cycle, and be further converted to electric energy, further improve the utilization rate of solar energy.
Above-mentioned cascade structure, the heat energy having produced while having realized condensation photovoltaic radiator heat-dissipation conducting in Rankine cycle to a greater extent, makes it to be converted to a greater extent electric energy, has realized at condensation photovoltaic part solar energy utilization ratio and having reached more than 30%.
Concrete, with reference to figure 4, the temperature that enters the anti-freeze cooling liquid of above-mentioned low-temperature heat exchange device 212 through concentration photovoltaic receiver 208 is 90 DEG C-120 DEG C, by pump 206 being set or auto-induction apparatus (not shown) being set, the anti-freeze cooling liquid of controlling in first low-temperature heat exchange device 212 remains on 80 DEG C of left and right, anti-freeze cooling liquid in second low-temperature heat exchange device 212 remains on 60 DEG C of left and right, anti-freeze cooling liquid in the 3rd low-temperature heat exchange device 212 remains on 40 DEG C of left and right and then through concentration photovoltaic receiver 208, completes the circulation of anti-freeze cooling liquid.
In other embodiment, above-mentioned low-temperature heat exchange device 212 quantity also can be 1,2 or more than three.In the time that low-temperature heat exchange device 212 quantity only have 1, its cooling liquid entrance e is connected concentration photovoltaic receiver 208 by pipeline respectively with cooling liquid outlet f.Further, cooling liquid outlet f connects concentration photovoltaic receiver 208 by pump 206.In low temperature liquid storage heat exchange tank 2122, be filled with anti-freeze cooling liquid, anti-freeze cooling liquid is by after cooling liquid outlet f, pump 206 and concentration photovoltaic receiver 208, get back to low temperature liquid storage heat exchange tank 2122 by cooling liquid entrance e again, the thermal energy conduction producing when anti-freeze cooling liquid dispels the heat concentration photovoltaic receiver 208 in above-mentioned circulation is to low temperature liquid storage heat exchange tank 2122.Above-mentioned the 5th heat exchanger 2124 stretches out respectively low temperature liquid storage heat exchanging tube by the 5th working medium entrance g and the 5th sender property outlet h, and respectively by the 4th working medium entrance c of pipeline connection cooling unit 218 and middle high-temperature heat-storage heat-exchanger rig 204, form the Rankine cycle of organic working medium, the heat energy in circulation is further converted to electric energy.
When low-temperature heat exchange device 212 quantity of above-mentioned cascade are while being multiple, temperature equal difference between low-temperature heat exchange device 212 reduces or reduces according to default temperature gradient, realize gradient cooling or gradient heat radiation, can ensure that the heat energy producing when above-mentioned concentration photovoltaic receiver 208 dispels the heat is farthest conducted in above-mentioned middle high-temperature heat-storage heat-exchanger rig 204, further improve the utilization ratio of solar energy.
Further, above-mentioned photovoltaic, solar-thermal generating system 200 comprise at least two series units that are made up of valve 214, decompressor 216, generator 220 and switch 222 (figure is mark not), parallel with one another between each unit, the 4th sender property outlet d of high-temperature heat-storage heat-exchanger rig 204 during valve 214 is communicated with respectively, decompressor 216 is communicated with respectively cooling unit 218, switch 222 connects respectively external circuit, realizes delivery of electrical energy to the external circuit that Rankine cycle is produced and is applied.Concrete, above-mentioned decompressor 216 is screw expander machine or scroll expander.
In other embodiments, above-mentioned decompressor 216 can be also turbo-expander.
Concrete, above-mentioned concentration photovoltaic receiver 208 is a kind of accurate slot type point condensation photovoltaic reception unit, i.e. a kind of accurate slot type point Photospot solar utilized device.
Above-mentioned accurate slot type point Photospot solar utilized device, by slot type structure that multiple somes collective optics settings are as the criterion, facilitate the follow-up cleaning to above-mentioned multiple somes collective opticses, and be provided with corresponding photoelectric conversion device for each some collective optics, improved solar energy utilization ratio.The supplemental characteristic of the characteristic parameter by set-point collective optics and corresponding photoelectric conversion device, sink, conductive structure, supporting structure etc., has further improved the utilization ratio of solar energy, has reduced manufacture cost and maintenance cost.By be respectively provided to few two row's photovoltaic cells in support device both sides, between each row, the photoelectric conversion device that adjacent photovoltaic cell is corresponding can share a receiving port, reduce the cost of production of accurate slot type point Photospot solar utilized device, and provide convenience for the layout of circuit and cooling liquid pipeline.Arranging of photoelectric conversion device; the photovoltaic cell of arranging by multiple matrixes are set on heat-conduction circuit board; parallel with one another and connect respectively protective circuit between each battery; when in use; if one of them photovoltaic cell breaks down; can change separately corresponding photovoltaic cell; thereby do not affect the normal use of other photovoltaic cells; do not affect the use of whole photoelectric conversion device; further improve the feasibility of accurate slot type point Photospot solar utilized device; the bulk life time that has improved system, has reduced maintenance cost.
Below in conjunction with drawings and Examples, above-mentioned accurate slot type point Photospot solar utilized device is described in more detail.
Shown in Fig. 7, it is accurate slot type point Photospot solar utilized device schematic diagram of the embodiment.
With reference to figure 7, a kind of accurate slot type point Photospot solar utilized device 300, comprises support device 320, multiple somes collective opticses 340 and multiple photoelectric conversion device 360.
Wherein, support device 320 comprises support 322 and base 324, and base 324 is symmetrically distributed in the both sides of support 322, and multiple somes collective opticses 340 are symmetrically distributed on the base 324 of above-mentioned support 322 both sides, form accurate slot type structure; Multiple photoelectric conversion devices 360, be positioned at one end that support 322 is relative with base 324, photoelectric conversion device 360 equates with some collective optics 340 quantity and is corresponding one by one with a collective optics 340, and the light-receiving mouth of photoelectric conversion device 360 is towards corresponding some collective optics 340 and be positioned at the optically focused focus place of corresponding some collective optics 340.
Above-mentioned accurate slot type point Photospot solar utilized device 300, some collective optics 340 receives and converges sunlight, and the sunlight above-mentioned some collective optics 340 being converged with the corresponding photoelectric conversion device 360 of above-mentioned some collective optics 340 is converted to electric energy.The sunlight of above-mentioned accurate slot type point Photospot solar utilized device is received to position, it is the overall structure setting of above-mentioned some collective optics 340 slot type structure that is as the criterion, be provided with corresponding photoelectric conversion device 360 for each some collective optics 340, in improving follow-up cleaning, further reduce system cost.Slot type structure is combined with some optically focused technology, making more to put collective optics 340 can public same support device 320, point collective optics 340 superjacent air spaces are got out of the way, facilitate follow-up by using automatic cleaning apparatus (not shown) to clean a collective optics 340, and conveniently change the operations such as some collective opticses 340, top support 322 laterally connects each photoelectric conversion device 360, this convenient wire and heat-radiation loop (not shown) of arranging.
Shown in Fig. 8, it is another embodiment's accurate slot type point Photospot solar utilized device schematic diagram.
With reference to figure 8, a kind of accurate slot type point Photospot solar utilized device 400, comprises support device 420, multiple somes collective opticses 440 and multiple photoelectric conversion device 460.
Wherein, support device 420 comprises support 422 and base 424, and base 424 is symmetrically distributed in the both sides of support 422, and multiple somes collective opticses 440 are symmetrically distributed on the base 424 of above-mentioned support 422 both sides, form accurate slot type structure; Multiple photoelectric conversion devices 460, be positioned at one end that support 422 is relative with base 424, photoelectric conversion device 460 equates with some collective optics 440 quantity and is corresponding one by one with a collective optics 440, and the light-receiving mouth of photoelectric conversion device 460 is towards corresponding some collective optics 440 and be positioned at the optically focused focus place of corresponding some collective optics 440.
Wherein, the every side of support 422 comprises above-mentioned some collective optics 440 of at least 2 rows, and at least 2 group point collective optics group 442(are with reference to figure 8).In embodiment illustrated in fig. 8, comprise that 2 rows put collective optics 440, i.e. 2 groups of above-mentioned some collective optics groups 442.Above-mentioned support device 420 1 sides, the some collective optics 440 adjacent with above-mentioned support 422 forms above-mentioned row's point collective optics, i.e. one group of some collective optics group 442; A row point collective optics adjacent with above-mentioned one group of some collective optics group 442 forms another group point collective optics group (figure is mark not).
In other embodiments, above-mentioned accurate slot type point Photospot solar utilized device 400 also can only arrange above-mentioned some collective optics of a row or multi-row in a side of support 422.
Shown in Fig. 9, it is the support one side point collective optics embodiment illustrated in fig. 8 plan view of arranging.
Shown in Figure 10, it is receiving port schematic diagram embodiment illustrated in fig. 8.
With reference to figure 9, above-mentioned every group of some collective optics group 442, the adjacent some collective optics 440 intended distance L that staggers between every group, accordingly, the photoelectric conversion device 460 corresponding with the above-mentioned adjacent some collective optics 440 staggering can be arranged in the same receiving port 4222 on support 422, the light-receiving mouth of the photoelectricity converter device 460 in above-mentioned same receiving port 4222 is respectively towards corresponding some collective optics 440, and lays respectively at the optically focused focus place (with reference to Figure 10) of respective point collective optics 440.With reference to embodiment illustrated in fig. 8, put collective optics 440 by 2 rows being set in the every side of support device 420, use an above-mentioned accurate slot type point Photospot solar utilized device 400, can complete two sides and accurate slot type point Photospot solar utilized device 300(that one row puts collective optics is only set with reference to figure 7) generated energy when co-operation, has reduced the manufacture cost of accurate slot type point Photospot solar utilized device 300.
Concrete, above-mentioned intended distance L can set different values as required.In the present embodiment, this intended distance L is set as 10mm.
In other embodiment, the group number of the some collective optics group 442 of support 422 every sides also can be set, and the number of photoelectric conversion device 460 in relative set receiving port 4222 and accordingly towards and position relationship.If the group number arranging is greater than 2, between each group, adjacent some collective optics 440 carries out Heterogeneous Permutation along a direction, to ensure the holding corresponding photoelectric conversion device 460 of some collective optics 440 adjacent between above-mentioned each group in same receiving port 4222.
Shown in Figure 11, for embodiment illustrated in fig. 8 some collective optics is with respect to the reference angle schematic diagram of corresponding photoelectric conversion device.
In embodiment illustrated in fig. 8, some collective optics 440 is reflective some collective optics.The focal length of above-mentioned some collective optics 440 is 0.8m-1.5m, and each some collective optics 440 is less than 30 ° with respect to the reference angle of corresponding photoelectric conversion device 460.Wherein, above-mentioned reference angle is the normal of each some collective optics 440 and the angle of corresponding incident light.With reference to figure 8, first row point collective optics 440 is α with respect to the reference angle in the view plane of corresponding photoelectric conversion device 460, second row point collective optics 440 is β with respect to the reference angle of corresponding photoelectric conversion device 460, and wherein the angle of α, β is all less than 30 °, and roughly the same.By the characteristic parameter of above-mentioned some collective optics is set, comprise the focal length of a collective optics, and the further incident angle of set-point collective optics, can further improve the utilization ratio of solar energy.Further, the focal length of above-mentioned some collective optics is 1m, reference angle is all less than 20 °, the above-mentioned practical efficiency that adopts existing gallium arsenide photovoltaic cell product (photoelectric transformation efficiency of existing three joint gallium arsenide photovoltaic cells is about 40%) can reach solar energy that arranges is about 25%～30%, consider that the efficiency of the multistage photovoltaic cell of gallium arsenide exceedes 50% in theory, the actual power efficiency of native system will be expected to approach 40% future.
Concrete, with reference to figure 8, above-mentioned reflective some collective optics is parabolic mirror.The light-receiving area of above-mentioned parabolic mirror is 0.2m
2-0.75m
2, the launching spot area that parabolic mirror forms at the light-receiving mouth of photoelectric conversion device 460 is less than 35mm*35mm, and light-receiving area is greater than 250 with the ratio of the area of launching spot.Above-mentioned parameter arranges, and has ensured the incident intensity of some optically focused launching spot, and making transform light energy is that the conversion efficiency of electric energy is higher.Concrete, the light-receiving area of above-mentioned parabolic mirror is 0.4m
2, the focal length of above-mentioned parabolic mirror and the ratio of the square root of light-receiving area are greater than 1.2 and be less than 3.Concrete, above-mentioned ratio is 1.5.By above-mentioned ratio is set, the area of launching spot that can make to arrive by parabolic mirror photoelectric conversion device 460 is less, and light intensity is more concentrated, meets the ideal operation scope of high power condensation photovoltaic battery.
Shown in Figure 12, it is photoelectric conversion device schematic diagram embodiment illustrated in fig. 8.
Shown in Figure 13, it is photoelectric conversion device schematic diagram in another embodiment.
With reference to Figure 12, Figure 13, middle photoelectric conversion device 460 embodiment illustrated in fig. 8 comprises multiple photovoltaic cells 462, multiple heat-conduction circuit board 464, multiple conducting plate 466, radiator 468, shell (not shown) and mounting plate 469.
Wherein, above-mentioned multiple photovoltaic cell 462 is located at respectively on corresponding heat-conduction circuit board 464, be converted to electric energy for sunlight that a collective optics 440 is launched, heat-conduction circuit board 464 is for fixing above-mentioned photovoltaic cell 462, and the heat energy producing when conducting photovoltaic cell 462 and working; Multiple conducting plates 466, are located at respectively on above-mentioned heat-conduction circuit board 464, and connect respectively above-mentioned photovoltaic cell 462, for deriving to external circuit the electric energy that photovoltaic cell 462 produces; Radiator 468, connects above-mentioned heat-conduction circuit board 464 by heat pipe 467, for deriving the heat energy producing when photovoltaic cell 462 is worked; Shell, for holding above-mentioned heat-conduction circuit board 464, photovoltaic cell 462, conducting plate 466, radiator 468, mounting plate 469 and heat pipe 467, and is provided with light-receiving mouth, the sunlight that photovoltaic cell 462 converges by above-mentioned light-receiving mouth acceptance point collective optics 440.Wherein, mounting plate 469 is for carrying above-mentioned multiple photovoltaic cell 462, multiple heat-conduction circuit board 464, multiple conducting plate 466 etc.
Concrete, above-mentioned radiator 468 and heat pipe 467 form sink (figure is mark not), and conducting plate 466 forms conductive structure (figure is mark not), and mounting plate 469 forms supporting mechanism (figure is mark not).The supplemental characteristic of the characteristic parameter by set-point collective optics 440 and corresponding photoelectric conversion device 460, sink, conductive structure, supporting structure etc., has further improved the utilization ratio of solar energy, has reduced manufacture cost and maintenance cost.
The sunlight that above-mentioned multiple photovoltaic cell 462 converges by above-mentioned light-receiving mouth acceptance point collective optics 440, and be electric energy by the transformation of energy of the launching spot receiving, and derive respectively to external circuit (not shown) the electric energy that each photovoltaic cell 462 produces by the conducting plate 466 of the each photovoltaic cell 462 of above-mentioned connection; Above-mentioned photovoltaic cell 462 can not be electric energy by whole light energy conversions, when above-mentioned photovoltaic cell 462 is electric energy by light energy conversion, the luminous energy that a part can not be changed by photovoltaic cell 462 becomes heat energy, the heat energy that above-mentioned heat-conduction circuit board 464 conducts above-mentioned multiple photovoltaic cell 462 to be produced while working, and derive above-mentioned heat energy by radiator 468.Above-mentioned radiator is provided with cooling liquid entrance 4682 and cooling liquid outlet 4684, connects respectively low-temperature heat exchange device 212 and carries out step heat radiation.
Concrete, above-mentioned cooling liquid entrance 4682 and cooling liquid outlet 4684 are respectively by cooling liquid outlet f and the cooling liquid entrance e of the above-mentioned low-temperature heat exchange device 212 of pipeline connection.Further, above-mentioned cooling liquid entrance 4682 is communicated with above-mentioned cooling liquid outlet f by pump 206.Concrete, above-mentioned pipeline is the pipeline that is coated with thermal insulating material, prevents that the temperature of above-mentioned anti-freeze cooling liquid circulation time anti-freeze cooling liquid is subject to the impact of external temperature.
Concrete, above-mentioned photovoltaic cell 462 is multi-junction gallium arsenide photovoltaic cell.The quantity of above-mentioned photovoltaic cell 462 is 4, and each photovoltaic cell 462 is arranged in independently on heat-conduction circuit board 464, and each heat-conduction circuit board 464 is square matrix to be arranged, and forms photovoltaic cell group (figure is mark not).Wherein, photovoltaic cell 462 that diagonal angle is arranged is parallel with one another and connect protective circuit (not shown), and 462 groups, the parallel photovoltaic battery of two groups of diagonal positions is connected mutually; Or, the parallel with one another and shared protective circuit of above-mentioned 4 photovoltaic cells 462.And, in above-mentioned accurate slot type point Photospot solar utilized device 400, series connection mutually between 462 groups of the photovoltaic cells of different some collective optics 440 corresponding photoelectric conversion devices 460, each collective optics 440 output voltages are added, and electric current equates, can not need to increase like this sectional area of wire, transmit more electric energy.Because the area of each collective optics 440 is equal, each photovoltaic cell 462 efficiency equate, so the ideal current that the corresponding photovoltaic cell group of each collective optics 440 produces equates, meets series connection condition; Experimental results show that, under same collective optics, in 4 photovoltaic cells 462, the electric current sum of the photovoltaic cell 462 electric current sums at diagonal angle and the photovoltaic cell 462 at another diagonal angle is very approaching, meet series connection condition, if the photovoltaic cell 462 at two groups of different diagonal angles is connected, voltage can be promoted to one times, electric current declines one times, thereby has reduced the requirement to sectional area of wire, save wire, reduced the loss on wire.
In photovoltaic cell group in above-mentioned each photoelectric conversion device 460, each photovoltaic cell 462 is arranged in independently on heat-conduction circuit board 464, in the time that one of them photovoltaic cell 462 breaks down, do not need whole photovoltaic cell group to change, only the photovoltaic cell breaking down 462 need to be taken off to replacing, do not affect the normal work of other photovoltaic cells 462, facilitate the lasting use of accurate slot type point Photospot solar utilized device 400, and improved the working life of accurate slot type point Photospot solar utilized device 400.
In other embodiment, the each photovoltaic cell 462 in above-mentioned photovoltaic cell group also can be connected mutually.
Concrete, the optical range that is subject to of above-mentioned each photovoltaic cell 462 is more than or equal to 9mm*9mm.In the time that above-mentioned photovoltaic cell 462 quantity are four, the overall receiving surface of above-mentioned photovoltaic cell group is slightly less than 40mm*40mm, further, is slightly less than 38mm*38mm.And, parabolic mirror is less than 35mm*35mm at the launching spot area of the capable one-tenth of light-receiving mouth of photoelectric conversion device, make launching spot energy stronger, realize in the receiving surface that above-mentioned launching spot can drop on 462 groups of photovoltaic cells completely, ensure to convert solar energy into electrical energy as much as possible.In another embodiment, the optical range that is subject to of above-mentioned each photovoltaic cell 462 is 10mm*10mm.
Concrete, the width of the light-receiving mouth on above-mentioned shell is greater than 60mm, can ensure that the receiving surface of 462 groups of photovoltaic cells exposes completely, and ensures that launching spot falls into being subject in optical range of 462 groups of above-mentioned photovoltaic cells completely.
Further, with reference to Figure 13, above-mentioned photoelectric conversion device also comprises secondary condensation device 465, and above-mentioned secondary condensation device 465 comprises light input end (figure is mark not) and light output end (figure is mark not), light input end is rectangular to be drawn close to light output end is intensive, and light output end optics connects photovoltaic cell 462.The light input end of above-mentioned secondary condensation device 465 receives the sunlight of injecting from light-receiving mouth, and carries out secondary condensation, and the sunlight after secondary condensation is injected above-mentioned photovoltaic cell group by light output end.
The sunlight of above-mentioned some collective optics reflection is also inhomogeneous, by using secondary condensation device, the inhomogeneous sunlight of above-mentioned some collective optics transmitting is carried out to further optically focused processing, make the less light intensity of launching spot injected stronger, the launching spot that makes to inject 462 groups of above-mentioned photovoltaic cells is relatively even, promote the sun light intensity that unit area photovoltaic cell 462 receives, further to improve the utilization ratio of solar energy.Concrete, above-mentioned secondary condensation device is transmission type secondary condensation prism, or reflective secondary condensation cup.
When above-mentioned accurate slot type point Photospot solar utilized device application, be positioned on solar tracking instrument, by the automatic tracking position of sun of solar tracking instrument, the point collective optics of accurate slot type point Photospot solar utilized device and the angle of sunlight are remained within the scope of several angle constant, or keep the some collective optics of accurate slot type point Photospot solar utilized device to be right against the sun.Concrete, the angle of the actual incident ray of the sun and desirable incident ray is δ, and, | δ |≤0.5 °.
Above-mentioned dimensional chain, comprise the focal length of parabolic mirror, receiving surface, reference angle, the size of launching spot, the receiving surface of photovoltaic cell 462 etc., the restriction of secondary condensation device 465 to incident angle of light that taken into account balance, the impact that the hot spot that solar tracking instrument departure causes rocks in light receiving zone, photovoltaic cell 462 ideals are subject to light intensity, photovoltaic cell 462 limits in the tolerance scope that is subject to light intensity when being extremely subject to light inhomogeneous, the restriction of conductor cross-section size to electric current [strength, the impact of wire hardness on circuit board, series boosting restrictive condition, realize photovoltaic cell 462 electric current derivation one by one, radiator 468 bulks and layout, the heat-conducting property of radiator 468, photovoltaic cell 462 is independent to be changed, point collective optics 440 machining accuracy allowed bands, point collective optics 440 property easy for installation, the clean convenience of some collective optics 440, the impact of blast on solar tracking instrument, the cost of the system problems such as cheap of trying one's best.
Further, the above-mentioned concentration photo-thermal receiver 202 slot light collection photo-thermal receiver that can be as the criterion equally, above-mentioned accurate slot light collection photo-thermal receiver adopts identical supporting structure with above-mentioned accurate slot light collection photovoltaic receiver, and the photoelectric conversion device 460 that the facula position place just a collective optics 440 being converged arranges replaces with photo-thermal conversion receiver.In another embodiment, photo-thermal conversion receiver as shown in Figure 6.Concentration photovoltaic receiver 208 and concentration photo-thermal receiver 202 can use some collective optics 440 and the supporting structure of same size, because concentration photo-thermal receiver is not high to collective optics required precision, can on concentration photo-thermal receiver 202, use with respect to concentration photovoltaic receiver 208 be collective opticses that error exceeds standard, make the reject rate of collective optics 440 level off to 0, thereby can further reduce system cost.
The above embodiment has only expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. solar energy composite utilizes a system, it is characterized in that, comprising:
The photovoltaic, solar-thermal generating system, heat pump and the user's heat-exchanger rig that connect successively; Wherein, described photovoltaic, solar-thermal generating system comprise:
Interconnective concentration photo-thermal receiver and middle high-temperature heat-storage heat-exchanger rig, described middle high-temperature heat-storage heat-exchanger rig stores the heat energy of described concentration photo-thermal receiver generation and conducts;
Interconnective concentration photovoltaic receiver and low-temperature heat exchange device, the heat energy that described low-temperature heat exchange device produces while gathering described concentration photovoltaic receiver heat radiation also conducts;
Interconnective decompressor and cooling unit, described decompressor and cooling unit are respectively by middle high-temperature heat-storage heat-exchanger rig and low-temperature heat exchange device described in pump and pipeline connection; Described low-temperature heat exchange device, middle high-temperature heat-storage heat-exchanger rig, decompressor, cooling unit and pump form Rankine cycle loop;
DC-to-AC converter, connects described concentration photovoltaic receiver; Described concentration photovoltaic receiver is by described DC-to-AC converter output AC electricity;
Described heat pump connects described decompressor or DC-to-AC converter.
2. solar energy composite according to claim 1 utilizes system, it is characterized in that, described photovoltaic, solar-thermal generating system also comprise motor, and described decompressor connects described heat pump by described motor.
3. solar energy composite according to claim 1 utilizes system, it is characterized in that, described middle high-temperature heat-storage heat-exchanger rig comprises:
Middle high temperature liquid container, described middle high temperature liquid container is full of the agent of fuse salt heat accumulation;
The 3rd heat exchanger, is placed in described high temperature liquid container, comprises the 3rd working medium entrance and the 3rd sender property outlet, and described the 3rd working medium entrance is connected described concentration photo-thermal receiver by pipeline respectively with the 3rd sender property outlet; Wherein, described in described pipeline hot connecting concentration photo-thermal receiver be subject to optical cavity body;
The 4th heat exchanger, is placed in described high temperature liquid container, comprises the 4th working medium entrance and the 4th sender property outlet, and described the 4th working medium entrance and the 4th sender property outlet are respectively by low-temperature heat exchange device and described decompressor described in pipeline connection.
4. solar energy composite according to claim 1 utilizes system, it is characterized in that, described low-temperature heat exchange device comprises:
Low temperature liquid storage heat exchange tank, is filled with anti-freeze cooling liquid, and is provided with cooling liquid entrance and cooling liquid outlet, and described cooling liquid entrance and cooling liquid outlet are respectively by the radiator of concentration photovoltaic receiver described in pipeline connection;
The 5th heat exchanger, is placed in described low temperature liquid storage heat exchange tank, comprises the 5th working medium entrance and the 5th sender property outlet, and described the 5th working medium entrance and the 5th sender property outlet are respectively by cooling unit and middle high-temperature heat-storage heat-exchanger rig described in pipeline connection.
5. solar energy composite according to claim 1 utilizes system, it is characterized in that, the described concentration photo-thermal receiver slot type point concentration photo-thermal reception unit that is as the criterion.
6. solar energy composite utilizes system according to claim 1 or 5, it is characterized in that, the described concentration photovoltaic receiver slot type point condensation photovoltaic reception unit that is as the criterion.
7. solar energy composite according to claim 6 utilizes system, it is characterized in that, described accurate slot type point condensation photovoltaic reception unit comprises:
Support device, comprises support and base, and described base is symmetrically distributed in described support both sides;
Multiple somes collective opticses, are symmetrically distributed on the base of described support both sides, form accurate slot type structure, receive and converge sunlight;
Multiple photoelectric conversion devices, be positioned at one end that described support is relative with described base, described photoelectric conversion device and described collective optics quantity equates and is corresponding one by one with described some collective optics, and the light-receiving mouth of described photoelectric conversion device is towards corresponding some collective optics and be positioned at the optically focused focus place of corresponding some collective optics; Described multiple somes collective opticses receive and converge sunlight, and the sunlight that described multiple photoelectric conversion devices converge described some collective optics is converted to electric energy.
8. solar energy composite according to claim 1 utilizes system, it is characterized in that, described heat pump comprises First Heat Exchanger, expansion valve and second heat exchanger of compressor, selector valve and connection;
Described compressor, connects described decompressor or DC-to-AC converter, for the electric energy compressed refrigerant of the kinetic energy that produces by described decompressor or the output of described DC-to-AC converter;
Described selector valve, is provided with first end, the second end, the 3rd end and the 4th end, and described first end, the second end are communicated with respectively input end and the output terminal of described compressor; Described the 3rd end is communicated with described First Heat Exchanger; Described the 4th end is communicated with described the second heat exchanger; Described user's heat-exchanger rig connects described the second heat exchanger by pipeline.
9. solar energy composite according to claim 8 utilizes system, it is characterized in that, described First Heat Exchanger is ground source heat exchanger.
10. solar energy composite according to claim 8 utilizes system, it is characterized in that, described the second heat exchanger is water storage heat exchanger or ice storage heat exchanger.
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| CN201420105270.4U CN203809222U (en) | 2014-03-10 | 2014-03-10 | Solar comprehensive utilization system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912756A (en) * | 2014-03-10 | 2015-09-16 | 容云 | Solar energy comprehensive utilization system |
| WO2015135458A1 (en) * | 2014-03-10 | 2015-09-17 | 容云 | Trough-type point-focusing device for exploitation of solar energy |
| CN105756872A (en) * | 2016-02-19 | 2016-07-13 | 上海光岚新能源科技有限公司 | Solar tower photothermal and photovoltaic power generating device and power generating method thereof |
| CN106016883A (en) * | 2016-05-16 | 2016-10-12 | 广东美的制冷设备有限公司 | Air conditioner device and control method thereof |
| CN106642816A (en) * | 2017-01-06 | 2017-05-10 | 华北电力大学 | Heating and cooling combined system for solving renewable energy power generation energy waste problem |
-
2014
- 2014-03-10 CN CN201420105270.4U patent/CN203809222U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912756A (en) * | 2014-03-10 | 2015-09-16 | 容云 | Solar energy comprehensive utilization system |
| WO2015135458A1 (en) * | 2014-03-10 | 2015-09-17 | 容云 | Trough-type point-focusing device for exploitation of solar energy |
| CN104912756B (en) * | 2014-03-10 | 2018-02-02 | 容云 | Solar energy composite utilizes system |
| CN105756872A (en) * | 2016-02-19 | 2016-07-13 | 上海光岚新能源科技有限公司 | Solar tower photothermal and photovoltaic power generating device and power generating method thereof |
| CN105756872B (en) * | 2016-02-19 | 2018-09-18 | 上海光岚新能源科技有限公司 | A kind of solar tower photo-thermal and photovoltaic power generation apparatus and its electricity-generating method |
| CN106016883A (en) * | 2016-05-16 | 2016-10-12 | 广东美的制冷设备有限公司 | Air conditioner device and control method thereof |
| CN106642816A (en) * | 2017-01-06 | 2017-05-10 | 华北电力大学 | Heating and cooling combined system for solving renewable energy power generation energy waste problem |
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