CN104539238B - A kind of magnetic nano-fluid light collecting photovoltaic cogeneration system - Google Patents
A kind of magnetic nano-fluid light collecting photovoltaic cogeneration system Download PDFInfo
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- CN104539238B CN104539238B CN201410842048.7A CN201410842048A CN104539238B CN 104539238 B CN104539238 B CN 104539238B CN 201410842048 A CN201410842048 A CN 201410842048A CN 104539238 B CN104539238 B CN 104539238B
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- 238000009825 accumulation Methods 0.000 claims abstract description 10
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
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- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 3
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
-
- 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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- Photovoltaic Devices (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The present invention relates to a kind of magnetic nano-fluid light collecting photovoltaic cogeneration system, including photovoltaic cell component module, also include heat accumulation assembly, photo-thermal assembly and flux control assembly；Described heat accumulation assembly includes thermal storage device and heat exchanger tube, is provided with phase change medium in thermal storage device, and the inlet and outlet of heat exchanger tube is exposed at outside thermal storage device；Described photo-thermal assembly includes circulating pump, first and second header, the thermal-collecting tube of multiple transparent shape and several even body of light, Fresnel Lenses and framework, and even body of light is many ribs lens, and the area of the upper surface of many ribs lens is more than its bottom area；Described flux control assembly includes snakelike Magnet and the coil being wrapped on snakelike magnet arm, all has a thermal-collecting tube, snakelike Magnet and multiple thermal-collecting tubes to be at grade between two adjacent magnet arm；Nano-fluid is all had to circulate in described heat exchanger tube, thermal-collecting tube, circulating pump and first and second header.The present invention has simple in construction, and can improve the advantages such as solar energy utilization ratio.
Description
Technical field
The present invention relates to a kind of photovoltaic cogeneration system, be specifically related to a kind of magnetic nano-fluid light collecting photovoltaic cogeneration system.
Background technology
Owing to solar energy resources enriches, and the energy of society's saving to be pursued now, therefore, the exploitation of solar energy have great potentiality.At present, the technology that utilizes of solar energy mainly has the basic mode such as photothermal deformation, photovoltaic generation.But, although photovoltaic generation can obtain high-grade electric energy product, but its subject matter to be photoelectric transformation efficiency relatively low so that cost is higher, and the spectrum band limits of available sunlight is narrower, the conversion efficiency of the common photovoltaic cell in prior art is also only at about 10%-20%.Utilization to solar energy optical-thermal is concentrated mainly on infrared part, and conversion efficiency is of a relatively high.If all band of sunlight can be utilized, by can the utilization rate of largely solar energy.
Traditional flat PV/T(photoelectricity, light-heat integration) system is by photovoltaic cell component module for power supply, and photovoltaic cell component module can produce big calorimetric in the course of the work and can affect the transformation efficiency of photoelectricity, owing to electricity conversion can reduce with the rising of temperature, cooling working medium will pass through and the heat exchange of photovoltaic cell component module, to reduce the purpose of plate gentleness generation hot working fluid, so, both improve electricity conversion, met thermic load the most to a certain extent.But, the most this heating effect is unsatisfactory, and general summer, hot water temperature can reach 40-60 DEG C, and the water temperature in winter only has about 10-30 DEG C, so the utilization rate of solar energy still can not be met demand.
Summary of the invention
It is an object of the invention to: provide one to be not only simple in structure, and the magnetic nano-fluid light collecting photovoltaic cogeneration system of solar energy utilization ratio can be improved, to overcome the deficiencies in the prior art.
In order to achieve the above object, the technical scheme is that a kind of magnetic nano-fluid light collecting photovoltaic cogeneration system, including photovoltaic cell component module, described photovoltaic cell component module is made up of the photovoltaic cell component that several are matrix form arrangement, and its innovative point is: also include heat accumulation assembly, photo-thermal assembly and flux control assembly；
Described heat accumulation assembly includes thermal storage device and heat exchanger tube, is provided with phase change medium in thermal storage device, and heat exchanger tube large part is in thermal storage device, and the inlet and outlet of heat exchanger tube is exposed at outside thermal storage device；
Described photo-thermal assembly includes circulating pump, the first header, the second header, the thermal-collecting tube of multiple transparent shape and several even body of light, Fresnel Lenses and framework, described even body of light is many ribs lens, and the area of the upper surface of many ribs lens is more than its bottom area；
The plurality of thermal-collecting tube separates and is set in parallel in the front of the photovoltaic cell component that photovoltaic cell component module is often gone, several even body of light are respectively fixedly connected with in the front of corresponding thermal-collecting tube, and each even body of light is respectively positioned on the frontal of corresponding photovoltaic cell component, it is arranged on the frontal of even body of light described frame space certain distance, described Fresnel Lenses is arranged in matrix form on framework, and each even body of light frontal all has a Fresnel Lenses；
Described circulation delivery side of pump is connected with the import of heat exchanger tube, and the outlet of heat exchanger tube is connected with the import of the first header,
One end of thermal-collecting tube is connected with the outlet of the first header, and the other end of thermal-collecting tube and the import of the second header are connected, and the outlet of the second header is connected with the import of circulating pump；
Described flux control assembly includes snakelike Magnet and the coil being wrapped on snakelike magnet arm, all has a thermal-collecting tube, snakelike Magnet and multiple thermal-collecting tubes to be at grade between two adjacent magnet arm；
Nano-fluid is all had in described heat exchanger tube, thermal-collecting tube, circulating pump, the first header and the second header.
In technique scheme, described nano-fluid is Fe3O4, or TiO2, or the nano-particle of shell core formula structure, the shell of the nano-particle of described shell core formula structure is SiO2, and inner core is Fe3O4, or TiO2, or Ni or Co.
In technique scheme, the phase change medium in described thermal storage device is sodium sulfate hydrated salt or disodium hydrogen phosphate 12 hydrated salt or calcium chloride hydrated salt or paraffin.
In technique scheme, the periphery of described thermal storage device is coated with heat-insulation layer.
In technique scheme, the plate that described heat-insulation layer is polystyrene foam plastics or asbestos or polyurethane material is made.
In technique scheme, also include the installing rack of U-shaped shape, the two ends of described framework are respectively erected on the frame of installing rack, described photovoltaic cell component module, even body of light, thermal-collecting tube and flux control assembly are located at the bottom of installing rack, and the spacing distance between described framework and even body of light controls in the range of 10mm～50mm.
In technique scheme, described coil electrically connects with regulated power supply.
The good effect that the present invention is had is: due to use the present invention combined production device after, the present invention have the advantage that into,
1, the making full use of of all band frequency spectrum of solar radiation: visible ray is the main source of electric energy, infrared light is the main source of heat energy, optical characteristics by flux control assembly regulation nano-fluid, make the energy of the magnetic nano-fluid high efficiency absorption infrared light of energy, and the energy that photovoltaic cell component module absorbs visible ray can carry out photoelectric conversion, the conversion efficiency of described photovoltaic cell component module is 12%～about 25%, solar energy all band spectrum can be made full use of by the present invention, is a kind of means efficiently utilizing solar energy.
2, storing heat: the nanometer magnetofluid of the present invention can absorb most infrared light in solar radiation, by the phase change medium being provided with in heat accumulation assembly, can storing heat, so, not only energy-conserving and environment-protective, moreover it is possible to improve the utilization rate of solar energy.
3, regulatable thermoelectricity output: the absorption of nano-fluid, refracting characteristic can be adjusted accordingly by the flux control assembly of the present invention, under the influence of a magnetic field, enhance absorption characteristic and the heat-transfer character of nano-fluid, decrease in transmission, and in certain magnetic field strength range, absorption characteristic and the heat-transfer character of nano-fluid strengthen with the enhancing of magnetic field intensity, and then the adjustability for the thermoelectricity output of the heating integrated device of photovoltaic provides a kind of possible, the difference for the thermoelectricity demand of user provides motility.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of detailed description of the invention of the present invention；
Fig. 2 is the A-A cross-sectional schematic of Fig. 1；
Fig. 3 is the B-B cross-sectional schematic of Fig. 1；
Fig. 4 is the C-C cross-sectional schematic of Fig. 3.
Detailed description of the invention
Below in conjunction with accompanying drawing and the embodiment that is given, the present invention is further illustrated, but is not limited thereto.
As shown in Figure 1,2,3, 4, a kind of magnetic nano-fluid light collecting photovoltaic cogeneration system, including photovoltaic cell component module 1, described photovoltaic cell component module 1 is made up of the photovoltaic cell component 1-1 that several are matrix form arrangement, also includes heat accumulation assembly 2, photo-thermal assembly 3 and flux control assembly 4；
Described heat accumulation assembly 2 includes thermal storage device 2-1 and heat exchanger tube 2-2, is provided with phase change medium in thermal storage device 2-1, and heat exchanger tube 2-2 large part is in thermal storage device 2-1, and the import 2-2-1 of heat exchanger tube 2-2 and outlet 2-2-2 is exposed at outside thermal storage device 2-1；
Described photo-thermal assembly 3 includes circulating pump 3-4, the first header 3-5, the second header 3-6, the thermal-collecting tube 3-3 of multiple transparent shape and several even body of light 3-2, Fresnel Lenses 3-1 and framework 10, described even body of light 3-2 is many ribs lens, and the area of the upper surface of many ribs lens is more than its bottom area；
The plurality of thermal-collecting tube 3-3 separates and is set in parallel in the front of the photovoltaic cell component 1-1 that photovoltaic cell component module 1 is often gone, several even body of light 3-2 are respectively fixedly connected with the front at corresponding thermal-collecting tube 3-3, and each even body of light 3-2 is respectively positioned on the frontal of corresponding photovoltaic cell component 1-1, described framework 10 is arranged on the frontal of even body of light 3-2 with keeping at a certain distance away, described Fresnel Lenses 3-1 arranges in matrix form on framework 10, and each even body of light 3-2 frontal all has a Fresnel Lenses 3-1；
The outlet of described circulating pump 3-4 is connected with the import 2-2-1 of heat exchanger tube 2-2, and the import 3-5-1 of the outlet 2-2-2 and the first header 3-5 of heat exchanger tube 2-2 is connected,
One end of thermal-collecting tube 3-3 is connected with the outlet 3-5-2 of the first header 3-5, and the other end of thermal-collecting tube 3-3 and the import 3-6-1 of the second header 3-6 are connected, and the import of outlet 3-6-2 and the circulating pump 3-4 of the second header 3-6 is connected；
Described flux control assembly 4 includes snakelike Magnet 4-1 and the coil 4-2 being wrapped on snakelike Magnet 4-1 arm, all has a thermal-collecting tube 3-3, snakelike Magnet 4-1 and multiple thermal-collecting tube 3-3 to be at grade between two adjacent Magnet 4-1 arms；
Nano-fluid is all had in described heat exchanger tube 2-2, thermal-collecting tube 3-3, circulating pump 3-4, the first header 3-5 and the second header 3-6.
Nano-fluid of the present invention is Fe3O4, or TiO2, or the nano-particle of shell core formula structure, the shell of the nano-particle of described shell core formula structure is SiO2, and inner core is Fe3O4, or TiO2, or Ni or Co.Described nano-fluid is nanometer ultramicro particles, and the ultramicro powder particle diameter of nanometer is averagely in the range of 20nm-50nm, and the percent concentration of particle diameter volume is 1～3%.
Phase change medium in thermal storage device 2-1 of the present invention is sodium sulfate hydrated salt or disodium hydrogen phosphate 12 hydrated salt or calcium chloride hydrated salt or paraffin.
As it is shown on figure 3, the heat in order to store in preventing thermal storage device 2-1 carries out heat exchange with external environment, the periphery of described thermal storage device 2-1 is coated with heat-insulation layer 5.The plate that described heat-insulation layer 5 is polystyrene foam plastics or asbestos or polyurethane material is made.
As shown in Figure 2, so that present configuration is more reasonable, also include the installing rack 7 of U-shaped shape, the two ends of described framework 10 are respectively erected on the frame of installing rack 7, described photovoltaic cell component module 1, even body of light 3-2, thermal-collecting tube 3-3 and flux control assembly 4 are located at the bottom of installing rack 7, and the spacing distance between described framework 10 and even body of light 3-2 controls in the range of 10mm～50mm.
As shown in Figure 1,3, described regulated power supply 8 is adjustable direct voltage source, galvanomagnetic-effect for coil 4-2 produces magnetic field, by changing the DC voltage of regulated power supply 8 output, adjustable magnetic fields size, and then change nano-fluid under different magnetic induction, have different characteristics, nano-fluid can be regulated to the absorption of solar energy infrared light wavelength coverage or refracting characteristic, and meeting the demand of practical situation with this, described coil 4-2 electrically connects with regulated power supply 8.
Solar spectral can be made full use of by the present invention, and a kind of means improving nano fluid heat transferring performance are provided, optical characteristics by flux control assembly regulation nano-fluid, make the energy of the magnetic nano-fluid high efficiency absorption infrared light of energy, and the energy that photovoltaic cell component module absorbs visible ray can carry out photoelectric conversion, the conversion efficiency of described photovoltaic cell component module is 12%～about 25%；Nanometer magnetofluid can absorb most infrared light in solar radiation, by the phase change medium being provided with in heat accumulation assembly, can storing heat, so, not only energy-conserving and environment-protective, moreover it is possible to improve the utilization rate of solar energy；The absorption of nano-fluid, refracting characteristic can be adjusted accordingly by the flux control assembly of the present invention, under the influence of a magnetic field, enhance absorption characteristic and the heat-transfer character of nano-fluid, decrease in transmission, and in certain magnetic field strength range, absorption characteristic and the heat-transfer character of nano-fluid strengthen with the enhancing of magnetic field intensity.
Claims (7)
1. a magnetic nano-fluid light collecting photovoltaic cogeneration system, including photovoltaic cell component module (1), described photovoltaic cell component module (1) is made up of the photovoltaic cell component (1-1) that several are matrix form arrangement, it is characterised in that: also include heat accumulation assembly (2), photo-thermal assembly (3) and flux control assembly (4)；
Described heat accumulation assembly (2) includes thermal storage device (2-1) and heat exchanger tube (2-2), it is provided with phase change medium in thermal storage device (2-1), heat exchanger tube (2-2) major part is positioned in thermal storage device (2-1), and import (2-2-1) and the outlet (2-2-2) of heat exchanger tube (2-2) are exposed at outside thermal storage device (2-1)；
Described photo-thermal assembly (3) includes circulating pump (3-4), the first header (3-5), the second header (3-6), the thermal-collecting tube (3-3) of multiple transparent shape and several even body of light (3-2), Fresnel Lenses (3-1) and framework (10), described even body of light (3-2) is many ribs lens, and the area of the upper surface of many ribs lens is more than its bottom area；
The plurality of thermal-collecting tube (3-3) separates and is set in parallel in the front of the photovoltaic cell component (1-1) that photovoltaic cell component module (1) is often gone, several even body of light (3-2) are respectively fixedly connected with in the front of corresponding thermal-collecting tube (3-3), and each even body of light (3-2) is respectively positioned on the frontal of corresponding photovoltaic cell component (1-1), described framework (10) interval 10mm～50mm distance it is arranged on the frontal of even body of light (3-2), described Fresnel Lenses (3-1) is arranged in matrix form on framework (10), and each even body of light (3-2) frontal all has a Fresnel Lenses (3-1)；
The outlet of described circulating pump (3-4) is connected with the import (2-2-1) of heat exchanger tube (2-2), and the outlet (2-2-2) of heat exchanger tube (2-2) is connected with the import (3-5-1) of the first header (3-5),
One end of thermal-collecting tube (3-3) is connected with the outlet (3-5-2) of the first header (3-5), the other end of thermal-collecting tube (3-3) and the import (3-6-1) of the second header (3-6) are connected, and the outlet (3-6-2) of the second header (3-6) is connected with the import of circulating pump (3-4)；
Described flux control assembly (4) includes snakelike Magnet (4-1) and the coil (4-2) being wrapped on snakelike Magnet (4-1) arm, a thermal-collecting tube (3-3), snakelike Magnet (4-1) and multiple thermal-collecting tubes (3-3) is all had to be at grade between two adjacent Magnet (4-1) arms；
Nano-fluid is all had in described heat exchanger tube (2-2), thermal-collecting tube (3-3), circulating pump (3-4), the first header (3-5) and the second header (3-6).
Magnetic nano-fluid the most according to claim 1 light collecting photovoltaic cogeneration system, it is characterised in that: described nano-fluid is Fe3O4, or TiO2, or the nano-particle of shell core formula structure, the shell of the nano-particle of described shell core formula structure is SiO2, and inner core is Fe3O4, or TiO2, or Ni or Co.
Magnetic nano-fluid the most according to claim 1 light collecting photovoltaic cogeneration system, it is characterised in that: the phase change medium in described thermal storage device (2-1) is sodium sulfate hydrated salt or disodium hydrogen phosphate 12 hydrated salt or calcium chloride hydrated salt or paraffin.
Magnetic nano-fluid the most according to claim 1 light collecting photovoltaic cogeneration system, it is characterised in that:
The periphery of described thermal storage device (2-1) is coated with heat-insulation layer (5).
Magnetic nano-fluid the most according to claim 4 light collecting photovoltaic cogeneration system, it is characterised in that: the plate that described heat-insulation layer (5) is polystyrene foam plastics or asbestos or polyurethane material is made.
Magnetic nano-fluid the most according to claim 1 light collecting photovoltaic cogeneration system, it is characterized in that: also include the installing rack (7) of U-shaped shape, the two ends of described framework (10) are respectively erected on the frame of installing rack (7), and described photovoltaic cell component module (1), even body of light (3-2), thermal-collecting tube (3-3) and flux control assembly (4) are located at the bottom of installing rack (7).
Magnetic nano-fluid the most according to claim 1 light collecting photovoltaic cogeneration system, it is characterised in that: described coil (4-2) electrically connects with regulated power supply (8).
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| CN105823236B (en) * | 2016-04-06 | 2018-01-19 | 河海大学常州校区 | A kind of light-focusing type photovoltaic thermal based on magnetic Nano fluid |
| CN106788222A (en) * | 2016-12-08 | 2017-05-31 | 河海大学常州校区 | A kind of solar cell double fluid layer electrothermal combined system based on nano-fluid |
| CN106656027A (en) * | 2017-01-06 | 2017-05-10 | 河海大学常州校区 | Nano-fluid based solar electricity and heat combined utilization device |
| CN107974240A (en) * | 2017-11-18 | 2018-05-01 | 山东龙光天旭太阳能有限公司 | A kind of effective nano fluid heat transferring working medium of solar energy heating and preparation method |
| CN111207523A (en) * | 2020-03-09 | 2020-05-29 | 山东省产品质量检验研究院 | Magnetic current controller for strengthening circulation flow of solar heat-conducting medium |
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| CN1975282B (en) * | 2006-12-07 | 2010-06-16 | 浙江大学 | Solar energy light gathering thermo-electric union system |
| CN101699748A (en) * | 2009-11-09 | 2010-04-28 | 刘文祥 | Nano photovoltaic |
| CN201621869U (en) * | 2010-03-26 | 2010-11-03 | 浙江大学 | Concentrating solar combined heat power and cooling device |
| CN102244482B (en) * | 2010-05-12 | 2014-04-23 | 凃杰生 | Photothermal power generation device of solar energy |
| CN202885295U (en) * | 2012-11-07 | 2013-04-17 | 李润泽 | Intelligent solar water heater circulating system |
| CN203911867U (en) * | 2014-06-18 | 2014-10-29 | 天津大学建筑设计研究院 | Off-network type balcony wall-mounted photovoltaic photo-thermal hot water system |
| CN104201974B (en) * | 2014-08-31 | 2016-08-24 | 芜湖市神龙新能源科技有限公司 | The most light collecting photovoltaic, temperature difference integrated power generation system |
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