CN110212861B - Solar cell panel backplate heat sink of natural wind speed governing accent - Google Patents
Solar cell panel backplate heat sink of natural wind speed governing accent Download PDFInfo
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- CN110212861B CN110212861B CN201910531385.7A CN201910531385A CN110212861B CN 110212861 B CN110212861 B CN 110212861B CN 201910531385 A CN201910531385 A CN 201910531385A CN 110212861 B CN110212861 B CN 110212861B
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- 238000001816 cooling Methods 0.000 claims abstract description 78
- 238000009423 ventilation Methods 0.000 claims abstract description 56
- 239000013589 supplement Substances 0.000 claims abstract description 10
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 9
- 230000033228 biological regulation Effects 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 6
- 230000008859 change Effects 0.000 claims abstract description 3
- 230000001502 supplementing effect Effects 0.000 claims description 12
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- H02S40/40—Thermal components
- H02S40/42—Cooling means
- H02S40/425—Cooling means using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
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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
Abstract
The invention discloses a solar cell panel back plate cooling device for speed and direction regulation by natural wind, which comprises a wind speed sensor, vertical stabilizing wings, a tapered air inlet flow channel, a cooling supplement device, a lower ventilation flow channel, an upper ventilation flow channel, a control module and a cooling flow channel, wherein the vertical stabilizing wings are arranged on the back plate; the cooling flow channel is arranged on a back plate of the solar cell panel; one end of each of the two upper ventilation flow passages is fixed at the two ends of the cooling flow passage; one end of the lower ventilation runner is rotatably arranged on the other end of the upper ventilation runner, and a tapered air inlet runner is fixed at the other end of the lower ventilation runner; vertical stabilizing wings are uniformly distributed and fixed on the outer side of the tapered air inlet channel. This device can the change windward angle of autotracking wind direction, realizes that the air intake is just the biggest windward side to the natural wind all the time, adopts the two-stage convergent structure of gradual shrinkage formula air inlet runner and cooling runner to increase air flow rate simultaneously, and can initiatively supply the cooling to the backplate through cooling supplementary device when low wind speed, has improved the utilization ratio to the low-speed wind, effectively promotes the cooling effect.
Description
Technical Field
The invention relates to the technical field of cooling of solar cell panels, in particular to a solar cell panel back plate cooling device capable of regulating speed and direction by natural wind.
Background
With the rapid development of the photovoltaic cleaning industry, photovoltaic devices are beginning to be popularized in northwest, north China and the like where solar energy resources are abundant. Although the photovoltaic device saves space, is clean and efficient, the photovoltaic module runs at a higher temperature due to being close to the ground, the power generation efficiency of the solar cell panel is greatly influenced, and unnecessary economic loss is caused due to line faults or even fire disasters caused by overheating. Therefore, the reduction of the temperature of the backboard with dense lines and much heat generation in the solar panel has important significance for the development of the photovoltaic industry. Wind power resources are abundant in northwest areas, north China and other areas of the vast country, but the wind flow speed is relatively low at the position, close to the ground, of the solar cell panel back plate, the utilization rate of wind power at a low wind speed is low, waste of the wind power resources is caused, and the natural ventilation cooling effect is influenced.
The application number 201810165795.X discloses a method for removing snow, dust and cooling solar photovoltaic power stations, an airflow pipe is arranged at the top of each solar cell panel, the head of the airflow pipe is a semicircular flat nozzle with the diameter of 50-100 mm, 5-10 air holes with the diameter of 1-5 mm and an included angle of 5 degrees with the cell panel are arranged on the side wall surface of an arc at equal intervals, the scheme cools the solar cell panel through high-pressure airflow, but wind resources in each wind direction cannot be fully utilized, and when the wind speed is too low, the effect of amplifying the air flow rate of the nozzle is not obvious, and the cooling is not obvious.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problem of providing a solar cell panel backboard cooling device for speed and direction regulation by natural wind.
The technical scheme for solving the technical problem is that the invention provides a solar cell panel back plate cooling device for speed and direction regulation by natural wind, which is characterized by comprising a wind speed sensor, a vertical stabilizer, a tapered air inlet channel, a cooling supplement device, a lower ventilation channel, an upper ventilation channel, a control module and a cooling channel;
the cooling flow channel is detachably arranged on a back plate of the solar cell panel; one end of each of the two upper ventilation flow passages is fixed at the two ends of the cooling flow passage; one end of the lower ventilation runner is rotatably arranged on the other end of the upper ventilation runner, and a tapered air inlet runner is fixed at the other end of the lower ventilation runner; the tapered air inlet channel, the lower ventilation channel, the upper ventilation channel and the cooling channel are communicated; vertical stabilizing wings are uniformly distributed and fixed on the outer side of the tapered air inlet channel and used for tracking the maximum windward side, so that an air inlet of the tapered air inlet channel is opposite to the maximum windward side; the cooling supplementing device is arranged at any position in a channel formed by the lower ventilation flow channel, the upper ventilation flow channel and the cooling flow channel, and is used for supplementing and cooling the solar cell panel back plate when wind power is insufficient; the wind speed sensor is arranged at a ventilation position and used for measuring wind speed; the control module is respectively and electrically connected with the wind speed sensor and the cooling supplementing device.
Compared with the prior art, the invention has the beneficial effects that:
(1) this device utilizes this clean energy of natural wind as cooling power, the energy saving, it is high-efficient convenient.
(2) The device can automatically track the wind direction and change the windward angle, realizes that the air inlet of the tapered air inlet channel is always over against the maximum windward side of natural wind, fully utilizes the wind resources in different wind directions, and increases the utilization rate of the natural wind resources.
(3) The device adopts a two-stage reducing structure of a reducing air inlet channel and a cooling channel to increase the air flow rate, improves the utilization rate of low-speed wind, greatly enhances the cooling effect, makes full use of the low-speed natural wind at the position of the solar cell panel back plate close to the ground, reduces the working temperature of the solar cell panel by 5-10 ℃, and improves the working efficiency by 10% -20% compared with the solar cell panel without the device.
(4) The device detects the wind speed in real time, automatically starts the cooling supplement device when the wind speed is low, carries out active cooling, avoids the failure of natural wind circulation cooling, and the solar cell panel can still maintain higher power generation efficiency under the condition of low wind speed.
(5) The device has the advantages of simple structure, lower cost, easy maintenance, low labor consumption, higher automation degree, strong containment and strong flexibility, and can adjust the environment in time, thereby having the advantage of large-area commercialization.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of a cooling supplement apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic block diagram of the connection of the control module of one embodiment of the present invention;
fig. 4 is a schematic view of the installation of the upper ventilation channel and the lower ventilation channel according to an embodiment of the present invention.
In the figure: 1. a wind speed sensor; 2. a vertical stabilizer wing; 3. a solar panel; 4. a tapered air inlet channel; 5. a cooling supplement device; 6. a lower ventilation flow channel; 7. an upper ventilation flow channel; 8. a control module; 9. and (4) a cooling runner.
Detailed Description
Specific examples of the present invention are given below. The specific examples are only intended to illustrate the invention in further detail and do not limit the scope of protection of the claims of the present application.
The invention provides a solar cell panel backboard cooling device (a device for short, see fig. 1-4) with natural wind speed and direction regulation, which is characterized by comprising a wind speed sensor 1, a vertical stabilizer 2, a gradually-contracted air inlet runner 4, a cooling supplement device 5, a lower ventilation runner 6, an upper ventilation runner 7, a control module 8 and a cooling runner 9; the lower ventilation flow passage 6 and the upper ventilation flow passage 7 are both L-shaped structures;
the cooling runner 9 is detachably mounted (clamped by a clamping groove) on a back plate of the solar cell panel 3; one end of each of the two upper ventilation flow passages 7 is fixed at two ends of the cooling flow passage 9; one end of the lower ventilation runner 6 is rotatably arranged on the other end of the upper ventilation runner 7 through a rolling bearing, and the other end is fixed with a tapered air inlet runner 4; the tapered air inlet channel 4, the lower ventilation channel 6, the upper ventilation channel 7 and the cooling channel 9 are communicated; the tapered air inlet channel 4 adopts an inner diameter tapered structure, and the inner diameter of the air inlet is the largest and is used for amplifying the air flow rate; the outer side of the tapered air inlet channel 4 is uniformly and fixedly provided with vertical stabilizing wings 2 for tracking the maximum windward side, so that the air inlet of the tapered air inlet channel 4 is opposite to the maximum windward side; the cooling supplementing device 5 is installed at any position (in this embodiment, installed inside the upper ventilation flow channel 7) inside a channel formed by the lower ventilation flow channel 6, the upper ventilation flow channel 7 and the cooling flow channel 9, and is used for increasing the wind speed, and is started when the wind power is insufficient to cool down, so as to supplement and cool down the back plate of the solar cell panel 3; the wind speed sensor 1 is arranged at a ventilation position (can be fixed on the ground) and is used for measuring wind speed; the control module 8 is respectively and electrically connected with the wind speed sensor 1 and the cooling supplementing device 5.
Preferably, the cooling supplementary device 5 comprises a direct current motor 5.1, a fixing plate 5.2 and fan blades 5.3; the fixing plate 5.2 is fixed at any position in a channel formed by the lower ventilation flow channel 6, the upper ventilation flow channel 7 and the cooling flow channel 9; the direct current motor 5.1 is fixed on the fixing plate 5.2, and the output end of the direct current motor is fixed with a fan blade 5.3.
Preferably, the control module 8 comprises a single chip microcomputer 8.1, a power supply 8.2, a clock chip 8.3, an external storage chip 8.4 and a liquid crystal display screen 8.5; the single chip microcomputer 8.1 is electrically connected with a power supply 8.2, a clock chip 8.3, an external storage chip 8.4 and a liquid crystal display screen 8.5 respectively; the power supply 8.2 supplies power to the whole device; the wind speed sensor 1 is electrically connected with the input end of the singlechip 8.1 through the clock chip 8.3, and the output end of the singlechip 8.1 is connected with the direct current motor 5.1 of the cooling supplement device 5.
Preferably, the cooling runner 9 is a tapered runner, and is used for secondarily increasing the speed of natural wind and circularly cooling the dense part of the backboard circuit of the solar cell panel 3;
the model YGC-FS of the wind speed sensor 1; the model of the single chip microcomputer 8.1 is STC89C 51; the power supply 8.2 is a 5V direct current power supply; the model DS1302 of the clock chip 8.3; the model AT28C256 of the external storage chip 8.4 is used for storing information such as time, wind speed and the like; the liquid crystal display 8.5 is of the type LCD1602, and can display current wind speed information and time information in real time so that workers can observe and record related information conveniently.
The working principle and the working process of the invention are as follows: installing the solar panel 3 on the roof of a house or other positions; through the rotatable connection between the vertical stabilizing wings 2 and the lower ventilation flow channel 6 and the upper ventilation flow channel 7, the windward angle can be changed by tracking the wind direction, and the air inlet of the tapered air inlet flow channel 4 is always over against the maximum windward side of natural wind. The wind speed is greatly accelerated by the natural wind through the two acceleration actions of the tapered air inlet flow channel 4 and the cooling flow channel 9, and the solar cell panel 3 is passively and circularly cooled by high-pressure airflow. The wind speed sensor 1 collects wind speed information in real time, sends the wind speed information into the control module 8, compares a wind speed value with a set threshold value, and judges whether the natural wind speed meets the cooling requirement or not by using the control module 8; when the real-time wind speed is higher than the set threshold value, the cooling supplementing device 5 does not work at the moment; when the real-time wind speed is lower than the set threshold value, the control module 8 controls the direct current motor 5.1 to be started, and the direct current motor 5.1 drives the fan blades 5.3 to rotate, so that the flow of air in the channel is accelerated, and the effect of actively cooling is achieved.
Nothing in this specification is said to apply to the prior art.
Claims (7)
1. A solar cell panel back plate cooling device capable of regulating speed and direction by natural wind is characterized by comprising a wind speed sensor, a vertical stabilizing wing, a tapered air inlet flow channel, a cooling supplementing device, a lower ventilation flow channel, an upper ventilation flow channel, a control module and a cooling flow channel;
the cooling flow channel is detachably arranged on a back plate of the solar cell panel; one end of each of the two upper ventilation flow passages is fixed at the two ends of the cooling flow passage; one end of the lower ventilation runner is rotatably arranged on the other end of the upper ventilation runner, and a tapered air inlet runner is fixed at the other end of the lower ventilation runner; the tapered air inlet channel, the lower ventilation channel, the upper ventilation channel and the cooling channel are communicated; vertical stabilizing wings are uniformly distributed and fixed on the outer side of the tapered air inlet channel and used for tracking the maximum windward side, so that an air inlet of the tapered air inlet channel is opposite to the maximum windward side; the cooling supplementing device is arranged at any position in a channel formed by the lower ventilation flow channel, the upper ventilation flow channel and the cooling flow channel, and is used for supplementing and cooling the solar cell panel back plate when wind power is insufficient; the wind speed sensor is arranged at a ventilation position and used for measuring wind speed; the control module is respectively and electrically connected with the wind speed sensor and the cooling supplementing device;
the vertical stabilizing wings and the rotatable connection between the lower ventilation flow channel and the upper ventilation flow channel track the wind direction to change the windward angle, so that the air inlet of the tapered air inlet flow channel is always opposite to the maximum windward side of natural wind; the natural wind carries out passive circulating cooling on the solar cell panel through the tapered air inlet flow channel and the cooling flow channel; the wind speed sensor collects wind speed information in real time, the wind speed information is sent to the control module, the wind speed value is compared with a set threshold value, and the control module is used for judging whether the natural wind speed meets the cooling requirement or not; when the real-time wind speed is higher than a set threshold value, the cooling supplementing device does not work at the moment; when the real-time wind speed is lower than the set threshold value, the control module controls the cooling supplement device to work, so that the air flow in the channel is accelerated, and the effect of active cooling is achieved.
2. The solar panel backboard cooling device for speed and direction regulation by natural wind of claim 1, wherein the cooling supplement device is installed inside the upper ventilation flow channel.
3. The solar panel backboard cooling device for speed and direction regulation by natural wind of claim 2, wherein the cooling supplementary device comprises a direct current motor, a fixing plate and fan blades; the fixing plate is fixed inside the upper ventilation flow channel; the direct current motor is fixed on the fixing plate, and the output end of the direct current motor is fixed with fan blades.
4. The solar cell panel back plate cooling device for speed and direction regulation by natural wind according to claim 3, wherein the control module comprises a single chip microcomputer, a power supply, a clock chip, an external storage chip and a liquid crystal display screen; the single chip microcomputer is respectively and electrically connected with the power supply, the clock chip, the external storage chip and the liquid crystal display screen; the power supply supplies power to the whole device; the wind speed sensor is electrically connected with the input end of the single chip microcomputer through the clock chip, and the output end of the single chip microcomputer is connected with the direct current motor of the cooling supplementing device.
5. The solar panel backboard cooling device according to claim 1, wherein the tapered air inlet channel adopts a tapered inner diameter structure, and the inner diameter at the air inlet is the largest for increasing the air flow rate.
6. The solar panel backboard cooling device for speed and direction regulation by natural wind of claim 1, wherein the cooling runner is a tapered runner inside, and carries out secondary speed increase on natural wind.
7. The solar panel backboard cooling device according to claim 1, wherein the lower ventilation flow channel and the upper ventilation flow channel are both L-shaped structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910531385.7A CN110212861B (en) | 2019-06-19 | 2019-06-19 | Solar cell panel backplate heat sink of natural wind speed governing accent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910531385.7A CN110212861B (en) | 2019-06-19 | 2019-06-19 | Solar cell panel backplate heat sink of natural wind speed governing accent |
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| CN110212861A CN110212861A (en) | 2019-09-06 |
| CN110212861B true CN110212861B (en) | 2020-11-03 |
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| CN201910531385.7A Active CN110212861B (en) | 2019-06-19 | 2019-06-19 | Solar cell panel backplate heat sink of natural wind speed governing accent |
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| CN110957975B (en) * | 2019-12-30 | 2024-03-22 | 河北工业大学 | Dust removing device for solar power generation device |
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| CN106253844A (en) * | 2016-10-20 | 2016-12-21 | 国网江苏省电力公司泰州供电公司 | The cooling structure of photovoltaic generating system |
| CN208063131U (en) * | 2018-03-29 | 2018-11-06 | 江西国信新能源有限公司 | A kind of device improving photovoltaic efficiency |
| CN208899698U (en) * | 2018-08-09 | 2019-05-24 | 国家能源投资集团有限责任公司 | Photovoltaic curtain wall heat utilization system |
| CN109639222A (en) * | 2018-12-29 | 2019-04-16 | 浙江太瓦科技有限公司 | A kind of photovoltaic tiles device with heat sinking function |
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