CN114294844A - Integrative conversion device of electric heat based on solar energy spotlight frequency division - Google Patents
Integrative conversion device of electric heat based on solar energy spotlight frequency division Download PDFInfo
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- CN114294844A CN114294844A CN202210026596.7A CN202210026596A CN114294844A CN 114294844 A CN114294844 A CN 114294844A CN 202210026596 A CN202210026596 A CN 202210026596A CN 114294844 A CN114294844 A CN 114294844A
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- frequency division
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- concave surface
- guide pipe
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 90
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000009833 condensation Methods 0.000 claims abstract description 6
- 230000005494 condensation Effects 0.000 claims abstract description 6
- 238000002834 transmittance Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000007888 film coating Substances 0.000 claims description 3
- 238000009501 film coating Methods 0.000 claims description 3
- 238000002310 reflectometry Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Images
Classifications
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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
-
- 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
- Y02E10/52—PV systems with concentrators
Abstract
The invention provides an electric-heat integrated conversion device based on solar light condensation and frequency division.A Fresnel lens is fixed above a concave container, low-frequency division liquid is filled in the concave container, and a high-frequency division film is laid at the outer bottom of the concave container; the photovoltaic cell is fixed below the concave surface container; one end of the high-temperature frequency division liquid guide pipe is connected with the concave surface body container, the other end of the high-temperature frequency division liquid guide pipe is connected with a hot liquid inlet of the heat exchanger, and the liquid pump is arranged on the high-temperature frequency division liquid guide pipe; one end of the low-temperature frequency division liquid guide pipe is connected with the concave surface container, the other end of the low-temperature frequency division liquid guide pipe is connected with a cold liquid outlet of the heat exchanger, the water pump is installed at a cold water inlet of the heat exchanger, and the steam flowmeter and the steam thermometer are installed at a steam outlet of the heat exchanger; two ends of the electromagnetic valve are respectively connected with the concave surface container and the frequency division liquid replenishing box; the temperature sensor is arranged at the liquid outlet of the concave surface container; the liquid level sensor is arranged above the liquid inlet of the concave surface container; the central controller comprises a wireless signal communication module, a central processing unit and a battery.
Description
Technical Field
The invention relates to the technical field of solar photovoltaic photo-thermal comprehensive utilization, in particular to an electric-heat integrated conversion device based on solar light condensation and frequency division.
Background
Solar energy is an important clean energy source and is radiated to the ground surface by illumination. Sunlight can be classified into: ultraviolet light, visible light and infrared light. The traditional photovoltaic cell can only convert most visible light into electric energy, the irradiation of ultraviolet light and infrared light is not beneficial to the normal work of the photovoltaic cell, especially in a concentrating photovoltaic system, the temperature of the photovoltaic cell can be greatly increased by the high-power concentrated infrared light, and the power generation efficiency is reduced. The solar photovoltaic heat collector is a common structure of the existing photovoltaic photo-thermal device, can absorb partial heat emitted by the photovoltaic cells at the front part, but has low heat absorption rate, limited cooling effect and low overall efficiency.
Disclosure of Invention
The invention aims to provide an electric-heat integrated conversion device based on solar light condensation and frequency division, aiming at the problem of low comprehensive utilization rate of energy of the existing solar device.
In order to achieve the purpose, the invention adopts the following technical scheme that the solar energy concentration and frequency division based electric-heat integrated conversion device comprises a Fresnel lens 1, a concave surface container 2, low-frequency division liquid 3, a high-frequency division film 4, a photovoltaic cell 5, a high-temperature frequency division liquid guide pipe 6, a heat exchanger 7, a low-temperature frequency division liquid guide pipe 8, a liquid pump 9, an electromagnetic valve 10, a frequency division liquid supplementing box 11, a temperature sensor 12, a liquid level sensor 13, a water pump 14, a steam flowmeter 15, a steam thermometer 16 and a central controller 17.
The Fresnel lens 1 is fixed above the concave container 2, the concave container 2 is a hollow transparent container, the concave container 2 is filled with low-frequency division liquid 3, and the outer bottom of the concave container is laid with a high-frequency division film 4; the photovoltaic cell 5 is fixed below the concave surface container 2.
The low-frequency division liquid 3 has the average light transmittance of more than 80% in the 400-1100nm wave band, the lowest transmittance value of 30% in the 1100-1200 nm wave band, and the absorptivity of the light in the long wave band of more than 1400nm reaches more than 95%.
The high-frequency division film 4 adopts silicon as a substrate, and the film coating materials are uniformly and alternately laid on the substrate by using materials with high refractive index and low refractive index of sunlight; the ultraviolet-resistant coating has the characteristics that the light transmittance of a 380nm-1200nm wave band is 85-90%, the reflectivity of a wave band smaller than 380nm is 80-90%, and most ultraviolet rays can be blocked.
One end of the high-temperature frequency division liquid guide pipe 6 is connected with the concave surface body container 2, the other end of the high-temperature frequency division liquid guide pipe is connected with a hot liquid inlet 71 of the heat exchanger 7, and the liquid pump 9 is arranged on the high-temperature frequency division liquid guide pipe 6; one end of the low-temperature frequency division liquid guide pipe 8 is connected with the concave surface container 2, the other end of the low-temperature frequency division liquid guide pipe is connected with a cold liquid outlet 72 of the heat exchanger 7, the water pump 14 is installed at a cold water inlet 73 of the heat exchanger 7, and the steam flowmeter 15 and the steam thermometer 16 are installed at a steam outlet 74 of the heat exchanger 7.
Two ends of the electromagnetic valve 10 are respectively connected with the concave surface container 2 and the frequency division liquid replenishing tank 11; the temperature sensor 12 is arranged at the liquid outlet of the concave surface container 2; the liquid level sensor 13 is arranged above the liquid inlet of the concave surface container 2.
The central controller 17 comprises a wireless signal communication module 171, a central processing unit 172 and a battery 173, the wireless signal communication module 171 can receive wireless signals of the temperature sensor 12, the liquid level sensor 13, the steam flow meter 15 and the steam thermometer 16, outputs corresponding control instructions after calculation by the central processing unit 172, and then sends instructions to drive the liquid pump 9, the electromagnetic valve 10 and the water pump 14 to work through the wireless signal communication module 171.
Drawings
Fig. 1 is a schematic structural diagram of an electric-heat integrated conversion device based on solar light condensation and frequency division.
Fig. 2 is a schematic structural diagram of a central controller 17 of an electrothermal integrated conversion device based on solar energy concentration and frequency division.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): referring to fig. 1 and 2, the electrothermal integrated conversion device based on solar light condensation and frequency division comprises a fresnel lens 1, a concave container 2, low-frequency division liquid 3, a high-frequency division film 4, a photovoltaic cell 5, a high-temperature frequency division liquid guide pipe 6, a heat exchanger 7, a low-temperature frequency division liquid guide pipe 8, a liquid pump 9, an electromagnetic valve 10, a frequency division liquid supplementing tank 11, a temperature sensor 12, a liquid level sensor 13, a water pump 14, a steam flowmeter 15, a steam thermometer 16 and a central controller 17.
When the Fresnel lens 1 is installed, the plane is upward, the circular Fresnel lens is made of ultraviolet JGS1 quartz glass with high light transmittance, the diameter is 30cm, the focal length is 30cm, the mass is uniformly distributed, and the transmittance is more than 90% on average in the waveband of 2100nm with 170 and 2100 nm.
The concave surface container 2 is hollow and transparent, the upper surface of the concave surface container is a concave surface, the thin-wall container is made of high-light-transmission ultraviolet JGS1 quartz glass, the bottom surface of the container is 30cm long, 10cm wide and 10cm high, the focal length of the concave surface is 10cm, the mass distribution is uniform, the transmittance is more than 90% on average in a 2100nm wave band of 170 plus materials, a liquid outlet is formed in the bottom of the side wall, and a liquid inlet is formed in the top of the opposite side.
Fresnel lens 1 and concave body container 2 are two in the space focus and the principal axis collineation, Fresnel lens 1 is installed and is located 20cm apart from the minimum of concave surface with concave body container 2 concave surface, photovoltaic cell 5 is installed and is located 2cm under 2cm apart from concave body container 2.
The low-frequency division liquid 3 adopts glycerol as a liquid frequency division medium, and has the characteristics that the average light transmittance is more than 80% in a 400-plus 1100nm wave band, the transmittance is sharply reduced in a 1100-1200 nm wave band, the lowest value is about 30%, and the light absorption rate of the low-frequency division liquid to a long wave band which is more than 1400nm wave band reaches more than 95%.
The high-frequency division film 4 adopts silicon as a substrate, and the film coating materials adopt silicon dioxide and titanium dioxide as high-low refractive index materials and are uniformly and alternately laid on the substrate; the ultraviolet-resistant coating has the characteristics that the light transmittance of a 380nm-1200nm wave band is about 86%, the reflectivity of a wave band smaller than 380nm is about 84%, and most ultraviolet rays can be blocked.
The photovoltaic cell 5 adopts a concentrating photovoltaic cell gallium arsenide.
The high-temperature frequency division liquid guide pipe 6 and the low-temperature frequency division liquid guide pipe 8 are made of high-temperature-resistant stainless steel, the periphery of the high-temperature frequency division liquid guide pipe is wrapped with a heat preservation layer, the guide pipes are cylindrical, the pipe diameter is 2cm, the length of the high-temperature frequency division liquid guide pipe 6 is 80cm, and the length of the low-temperature frequency division liquid guide pipe 8 is 100 cm.
The heat exchanger 7 is of an opposite dividing wall type structure made of metal materials, when the low-frequency division liquid 3 absorbs infrared rays and is heated, the temperature sensor 12 monitors that the liquid temperature at the liquid outlet of the concave surface container 2 reaches a set temperature of 200-250 ℃, a temperature signal is sent to the central controller 17 through the wireless signal transmission module, through calculation, the water pump 14 is controlled to adjust the flow rate of cold water flowing into the cold water inlet 73 of the heat exchanger 7, the cold water is changed into vapor through a heat absorption phase, the vapor is output from the opposite steam outlet 74, the low-frequency division liquid 3 enters the heat exchanger 7 from the hot liquid inlet 71, and flows out from the opposite cold liquid outlet 72 after heat release.
The temperature sensor 12 and the vapor thermometer 16 adopt WZP type platinum resistors, the temperature measuring range is-70-250 ℃, and the liquid pump 9 adopts an AY type 50AY60 centrifugal pump.
The liquid level sensor 13 adopts an LT100 type to monitor the liquid level in the concave surface container 2, when the liquid level is lower than a set value, the liquid level data is sent to the central controller 17 through the wireless module, the switch of the electromagnetic valve 10 is controlled, and the replenishing liquid in the frequency division liquid replenishing tank 11 flows into the concave surface container 2 by using the liquid pressure, so that the frequency division of the device is ensured according to the expected effect.
The steam flow meter 15 adopts an LS-LUGB type steam flow meter, the temperature range of the measured medium is-25-250 ℃, and the measurement requirement is met.
The central controller 17 comprises a wireless signal communication module 171, a central processing unit 172 and a battery 173, the wireless signal communication module 171 can receive wireless signals of each sensor, outputs corresponding control instructions after being calculated by the central processing unit 172, and then sends instructions to drive the liquid pump 9, the electromagnetic valve 10 and the water pump 14 to work through the wireless signal communication module 171; the wireless signal communication module 171 is a freescale MC13224 and the central processor 172 is model S7-200.
Claims (7)
1. An electric-heat integrated conversion device based on solar light condensation and frequency division comprises a Fresnel lens (1), a concave body container (2), low-frequency division liquid (3), a high-frequency division film (4), a photovoltaic cell (5), a high-temperature frequency division liquid guide pipe (6), a heat exchanger (7), a low-temperature frequency division liquid guide pipe (8), a frequency division liquid pump (9), an electromagnetic valve (10), a frequency division liquid supplementing box (11), a temperature sensor (12), a liquid level sensor (13), a water pump (14), a steam flowmeter (15), a steam thermometer (16) and a central controller (17), wherein the Fresnel lens (1) is fixed above the concave body container (2), the concave body container (2) is filled with the low-frequency division liquid (3), and the outer bottom of the Fresnel lens is laid with the high-frequency division film (4); the photovoltaic cell (5) is fixed below the concave surface container (2); the heat exchanger (7) comprises a hot liquid inlet (71), a cold liquid outlet (72), a cold water inlet (73) and a steam outlet (74), one end of the high-temperature frequency-dividing liquid guide pipe (6) is connected with the concave surface body container (2), the other end of the high-temperature frequency-dividing liquid guide pipe is connected with the hot liquid inlet (71) of the heat exchanger (7), and the liquid pump (9) is installed on the high-temperature frequency-dividing liquid guide pipe (6); one end of the low-temperature frequency division liquid guide pipe (8) is connected with the concave surface container (2), the other end of the low-temperature frequency division liquid guide pipe is connected with a cold liquid outlet (72) of the heat exchanger (7), the water pump (14) is installed at a cold water inlet (73) of the heat exchanger (7), and the steam flowmeter (15) and the steam thermometer (16) are installed at a steam outlet (74) of the heat exchanger (7); two ends of the electromagnetic valve (10) are respectively connected with the concave surface container (2) and the frequency division liquid replenishing tank (11); the temperature sensor (12) is arranged at the liquid outlet of the concave surface container (2); the liquid level sensor (13) is arranged above the liquid inlet of the concave surface container (2); the central controller (17) comprises a wireless signal communication module (171), a central processing unit (172) and a battery (173), the wireless signal communication module (171) can receive wireless signals of the temperature sensor (12), the liquid level sensor (13), the steam flow meter (15) and the steam thermometer (16), corresponding control instructions are output after calculation of the central processing unit (172), and then the wireless signal communication module (171) sends instructions to drive the liquid pump (9), the electromagnetic valve (10) and the water pump (14) to work.
2. The solar energy concentration and frequency division based electric-heat integrated conversion device according to claim 1, wherein the Fresnel lens (1) is made of a high light transmission material, faces upward, and is fixed at a specific position above the concave container (2).
3. The solar energy concentration and frequency division based electric-heat integrated conversion device according to claim 1, wherein the concave container (2) is a thin-wall container made of a high light-transmitting material, the interior of the container is hollow, and the concave surface faces upwards.
4. The solar energy concentration and frequency division based electric-heat integrated conversion device according to claim 1, wherein the Fresnel lens (1) and the concave body container (2) are in common focus in space and the main optical axis is collinear.
5. The solar energy light-gathering and frequency-dividing based electric-heat integrated conversion device as claimed in claim 1, wherein the low-frequency-dividing liquid (3) has a light average transmittance of more than 80% in 400-1100nm band, a minimum transmittance of 30% in 1100-1200 nm band, and an absorption rate of more than 95% for long-wavelength band light of 1400nm band.
6. The solar energy concentration and frequency division based electric-heat integrated conversion device according to claim 1, characterized in that the high-frequency division film (4) adopts silicon as a substrate, and the film coating materials are uniformly and alternately laid on the substrate by using sunlight high-refractive index and low-refractive index materials; the high-frequency division film (4) has the light transmittance of 85-90% for the wave band of 380nm-1200nm and the wave band reflectivity of 80-90% less than 380 nm.
7. The solar energy concentration and frequency division based electric-heat integrated conversion device according to claim 1, characterized in that the photovoltaic cell (5) is a concentrating photovoltaic cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210026596.7A CN114294844A (en) | 2022-01-11 | 2022-01-11 | Integrative conversion device of electric heat based on solar energy spotlight frequency division |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210026596.7A CN114294844A (en) | 2022-01-11 | 2022-01-11 | Integrative conversion device of electric heat based on solar energy spotlight frequency division |
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| CN114294844A true CN114294844A (en) | 2022-04-08 |
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| CN202210026596.7A Pending CN114294844A (en) | 2022-01-11 | 2022-01-11 | Integrative conversion device of electric heat based on solar energy spotlight frequency division |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101113A (en) * | 2014-06-26 | 2014-10-15 | 同济大学 | Solar photothermal and photoelectric frequency division utilization system |
| CN105553414A (en) * | 2014-10-29 | 2016-05-04 | 江苏双能太阳能有限公司 | Solar electric heating utilization apparatus |
| CN107196601A (en) * | 2017-06-20 | 2017-09-22 | 河海大学常州校区 | A kind of high efficiency thermoelectric co-generation system based on nano-fluid |
| CN107634109A (en) * | 2017-09-13 | 2018-01-26 | 哈尔滨工业大学（威海） | It is a kind of that solar concentrating photovoltaic and the chemical combined generating systems of middle Low Temperature Thermal and method are realized by spectrum frequency dividing |
| US20180041158A1 (en) * | 2015-02-15 | 2018-02-08 | Institute Of Engineering Thermophysics Chinese Academy Of Sciences | Photovoltaic-Photothermal Reaction Complementary Full-Spectrum Solar Utilization System |
-
2022
- 2022-01-11 CN CN202210026596.7A patent/CN114294844A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101113A (en) * | 2014-06-26 | 2014-10-15 | 同济大学 | Solar photothermal and photoelectric frequency division utilization system |
| CN105553414A (en) * | 2014-10-29 | 2016-05-04 | 江苏双能太阳能有限公司 | Solar electric heating utilization apparatus |
| US20180041158A1 (en) * | 2015-02-15 | 2018-02-08 | Institute Of Engineering Thermophysics Chinese Academy Of Sciences | Photovoltaic-Photothermal Reaction Complementary Full-Spectrum Solar Utilization System |
| CN107196601A (en) * | 2017-06-20 | 2017-09-22 | 河海大学常州校区 | A kind of high efficiency thermoelectric co-generation system based on nano-fluid |
| CN107634109A (en) * | 2017-09-13 | 2018-01-26 | 哈尔滨工业大学（威海） | It is a kind of that solar concentrating photovoltaic and the chemical combined generating systems of middle Low Temperature Thermal and method are realized by spectrum frequency dividing |
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