阅读说明：本技术 一种槽式太阳能光伏发电系统 (Groove type solar photovoltaic power generation system ) 是由 丁宁 徐文庆 于 2021-09-22 设计创作，主要内容包括：本发明公开一种槽式太阳能光伏发电系统,其包括槽式反光装置,太阳能透光隔热光伏装置和降温装置；所述太阳能透光隔热光伏装置包括透光隔热组件和光伏组件；所述透光隔热组件包括上有机玻璃板、空气流道、下有机玻璃板和上转换基质膜；所述光伏组件包括上玻璃片、毛细换热管网、上封装胶膜、电池片、下封装胶膜和下玻璃片；所述槽式反光装置能将太阳光聚焦于太阳能透光隔热光伏装置的上转换基质膜的下表面上；所述降温装置能对太阳能透光隔热光伏装置进行降温。本发明具有成本低、发电效率高的优点。(The invention discloses a groove type solar photovoltaic power generation system, which comprises a groove type reflecting device, a solar light-transmitting heat-insulating photovoltaic device and a cooling device, wherein the groove type reflecting device is arranged on the solar light-transmitting heat-insulating photovoltaic device; the solar light-transmitting heat-insulating photovoltaic device comprises a light-transmitting heat-insulating component and a photovoltaic component; the light-transmitting heat-insulating component comprises an upper organic glass plate, an air flow channel, a lower organic glass plate and an upper conversion matrix film; the photovoltaic module comprises an upper glass sheet, a capillary heat exchange pipe network, an upper packaging adhesive film, a battery sheet, a lower packaging adhesive film and a lower glass sheet; the groove type reflecting device can focus sunlight on the lower surface of an up-conversion matrix film of the solar light-transmitting heat-insulating photovoltaic device; the cooling device can cool the solar light-transmitting heat-insulating photovoltaic device. The invention has the advantages of low cost and high power generation efficiency.)

1. The utility model provides a slot type solar photovoltaic power generation system which characterized in that: the solar energy heat-insulation photovoltaic device comprises a groove type reflecting device, a solar energy light-transmission heat-insulation photovoltaic device and a cooling device;

the solar light-transmitting heat-insulating photovoltaic device comprises a light-transmitting heat-insulating component and a photovoltaic component; the light-transmitting heat-insulating assembly comprises an upper organic glass plate (211), the lower surface of the upper organic glass plate is connected with an air flow channel (212), the lower surface of the air flow channel (212) is connected with a lower organic glass plate (213), and the lower surface of the lower organic glass plate (213) is connected with an upper conversion matrix film (214); the photovoltaic module comprises an upper glass sheet (221), the lower surface of the upper glass sheet is connected with a capillary heat exchange pipe network (222), the lower surface of the capillary heat exchange pipe network (222) is connected with an upper packaging adhesive film (223), the lower surface of the upper packaging adhesive film (223) is connected with a battery sheet (224), the lower surface of the battery sheet (224) is connected with a lower packaging adhesive film (225), and the lower surface of the lower packaging adhesive film (225) is connected with a lower glass sheet (226); the upper surface of the upper organic glass plate (211) is connected with the lower surface of the lower glass sheet (226);

the groove type reflecting device can focus sunlight on the lower surface of an up-conversion matrix film (214) of the solar light-transmitting heat-insulating photovoltaic device;

the cooling device can cool the solar light-transmitting heat-insulating photovoltaic device.

2. The trough-type solar photovoltaic power generation system of claim 1, wherein: the groove type reflecting device comprises a groove type reflecting mirror surface (11), the groove type reflecting mirror surface (11) is connected with the inner side of a rotating shaft (13) through a support rod (12), the outer side of the rotating shaft (13) is fixedly connected with a support bracket (14), and the support bracket (14) is fixed with the ground; the solar light-transmitting heat-insulating photovoltaic device is fixed on the groove type reflecting mirror surface (11) through a fixing rod (15), and the lower surface of the upper conversion matrix film (214) of the solar light-transmitting heat-insulating photovoltaic device is opposite to the light-condensing center of the groove type reflecting mirror surface (11).

3. The trough-type solar photovoltaic power generation system of claim 1, wherein: the cooling device comprises a water cooling device which comprises a cooling water tower (311), a cooling water outlet of the cooling water tower (311) is connected with a water inlet of a first circulating pump (312), a water outlet of the first circulating pump (312) is connected with one end of a capillary heat exchange pipe network (222), and the other end of the capillary heat exchange pipe network (222) is connected with a water inlet end of the cooling water tower (311).

4. The trough-type solar photovoltaic power generation system of claim 3, wherein: the cooling device also comprises an air cooling device which comprises a circulating fan (321), wherein an air inlet of the air cooling device is communicated with the atmosphere, an outlet of the air cooling device is connected with an inlet of a circulating cooling structure, an outlet of the circulating cooling structure is connected with one end of an air flow channel (212) through a pipeline, and the other end of the air flow channel (212) is communicated with the atmosphere; the circulating fan (321) blows cold air of the circulating cooling structure into the air flow channel (211), and therefore the solar light-transmitting heat-insulating photovoltaic device is cooled.

5. The trough-type solar photovoltaic power generation system according to claim 4, wherein: the circulating cooling structure comprises a humidifier (322), the humidifier (322) is of a frame structure, an inlet is formed in one side wall of the humidifier (322), an outlet is formed in the side wall opposite to the inlet, a plurality of wet curtains (3221) are installed in the humidifier (322), the wet curtains (3221) are arranged in the direction perpendicular to the inlet, the top of the inner wall of the humidifier (322) is provided with an atomizing nozzle pipe (3222) above the wet curtains (3221), and the atomizing nozzle pipe (3222) is connected with a water outlet of the first circulating pump (312); the inner wall of the humidifier (322) is provided with a water collecting outlet (3223), the water collecting outlet (3223) is connected with a water inlet of the second circulating pump (323), and a water outlet of the second circulating pump (323) is connected with a water inlet end of the cooling water tower (311).

6. The trough-type solar photovoltaic power generation system of claim 1, wherein: the capillary heat exchange pipe network (222) and the upper packaging adhesive film (223) are fixed into an integral structure.

7. The trough-type solar photovoltaic power generation system of claim 1, wherein: the upper surface of going up organic glass board (211) is apart from the lower surface of lower glass piece (226) 0.5 ~ 1cm clearance, is the air in the middle of the clearance.

8. The trough-type solar photovoltaic power generation system of claim 1, wherein: the solar light-transmitting heat-insulating photovoltaic device further comprises a frame, wherein the frame fixes the light-transmitting heat-insulating assembly and the photovoltaic assembly into a whole.

Technical Field

The invention relates to the technical field of solar photovoltaic power generation, in particular to a groove type solar photovoltaic power generation system.

Background

The trough type solar energy system is called as a trough type parabolic reflector solar energy system, and a plurality of trough type parabolic light gathering devices are arranged in series and parallel to focus direct solar light, so that strong illumination can be generated, and the trough type solar energy system is commonly used for a solar energy heat collecting system at present. Photovoltaic modules are commonly referred to as solar panels and are formed by solar cells. Since the current and the voltage of the single solar cell are very small, the single solar cell is firstly connected in series to obtain high voltage, then connected in parallel to obtain high current, and then output after passing through a diode.

The focused solar energy is irradiated to the photovoltaic module to generate strong illumination, so that the use amount of the photovoltaic module is greatly reduced, and the power generation cost is reduced. Research shows that the conversion efficiency of the photovoltaic module is reduced by 0.4-0.5% when the temperature of the photovoltaic module is increased by 1 ℃.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a trough type solar photovoltaic power generation system with low cost and high power generation efficiency.

The technical scheme of the invention is as follows: a groove type solar photovoltaic power generation system comprises a groove type reflecting device, a solar light-transmitting heat-insulating photovoltaic device and a cooling device; the solar light-transmitting heat-insulating photovoltaic device comprises a light-transmitting heat-insulating component and a photovoltaic component; the light-transmitting heat-insulating component comprises an upper organic glass plate, the lower surface of the upper organic glass plate is connected with an air flow channel, the lower surface of the air flow channel is connected with a lower organic glass plate, and the lower surface of the lower organic glass plate is connected with an upper conversion matrix film; the photovoltaic module comprises an upper glass sheet, the lower surface of the upper glass sheet is connected with a capillary heat exchange pipe network, the lower surface of the capillary heat exchange pipe network is connected with an upper packaging adhesive film, the lower surface of the upper packaging adhesive film is connected with a battery sheet, the lower surface of the battery sheet is connected with a lower packaging adhesive film, and the lower surface of the lower packaging adhesive film is connected with a lower glass sheet; the upper surface of the upper organic glass plate is connected with the lower surface of the lower glass sheet; the groove type reflecting device can focus sunlight on the lower surface of an up-conversion matrix film of the solar light-transmitting heat-insulating photovoltaic device; the cooling device can cool the solar light-transmitting heat-insulating photovoltaic device.

The further technical scheme of the invention is as follows: the groove type reflecting device comprises a groove type reflecting mirror surface, the groove type reflecting mirror surface is connected with the inner side of the rotating shaft through a support rod, the outer side of the rotating shaft is fixedly connected with a support bracket, and the support bracket is fixed with the ground; the solar light-transmitting heat-insulating photovoltaic device is fixed on the groove type reflecting mirror surface through the fixing rod, and the lower surface of the upper conversion matrix film is opposite to the light-gathering center of the groove type reflecting mirror surface.

The further technical scheme of the invention is as follows: the cooling device comprises a water cooling device which comprises a cooling water tower, wherein a cooling water outlet of the cooling water tower is connected with a water inlet of a first circulating pump, a water outlet of the first circulating pump is connected with one end of a capillary heat exchange pipe network, and the other end of the capillary heat exchange pipe network is connected with a water inlet end of the cooling water tower.

The further technical scheme of the invention is as follows: the cooling device also comprises an air cooling device which comprises a circulating fan, wherein an air inlet of the circulating fan is communicated with the atmosphere, an outlet of the circulating fan is connected with an inlet of a circulating cooling structure, an outlet of the circulating cooling structure is connected with one end of an air flow channel through a pipeline, and the other end of the air flow channel is communicated with the atmosphere; the circulating fan blows cold air of the circulating cooling structure into the air flow channel, and therefore the solar light-transmitting heat-insulating photovoltaic device is cooled.

The further technical scheme of the invention is as follows: the circulating cooling structure comprises a humidifier, the humidifier is of a frame type structure, an inlet is formed in one side wall of the humidifier, an outlet is formed in the side wall opposite to the inlet, a plurality of wet curtains are mounted in the humidifier, the wet curtains are arranged in the direction perpendicular to the inlet, an atomizing nozzle pipe is arranged on the top of the inner wall of the humidifier and above the wet curtains, and the atomizing nozzle pipe is connected with a water outlet of the first circulating pump; the humidifier inner wall is equipped with the export of catchmenting, and the water inlet of second circulating pump is connected to the export of catchmenting, and the delivery port of second circulating pump is connected with cooling tower's the end of intaking.

The further technical scheme of the invention is as follows: the capillary heat exchange pipe network and the upper packaging adhesive film are fixed into an integral structure.

The further technical scheme of the invention is as follows: the upper surface of going up the organic glass board is apart from the lower surface of lower glass piece (226) 0.5 ~ 1cm clearance, is the air in the middle of the clearance.

The further technical scheme of the invention is as follows: the solar light-transmitting heat-insulating photovoltaic device further comprises a frame, wherein the frame fixes the light-transmitting heat-insulating assembly and the photovoltaic assembly into a whole.

Compared with the prior art, the invention has the following characteristics:

1, the cost is low. According to the technical scheme, sunlight is condensed by the groove type reflecting mirror surface and then irradiates the photovoltaic module, the sunlight absorbed by the photovoltaic module in unit area is more, the using amount of the photovoltaic module is greatly reduced, and the cost is reduced.

2, the efficiency is high. The solar cell is provided with the up-conversion matrix film, before the concentrated sunlight irradiates the cell, the concentrated sunlight firstly passes through the up-conversion matrix film, the up-conversion matrix film can convert far infrared rays generating heat into visible light, the heat generation is reduced, the visible spectrum is increased, the cell can absorb more visible spectra, the generated energy is increased, and the system power generation efficiency is improved.

3 the cooling effect is good. The invention reduces the temperature of the photovoltaic module in three aspects; on one hand, the upconversion matrix film filters most of far infrared rays which can generate heat; on the other hand, the heat generated by the up-conversion substrate film is taken away by the air in the air flow channel in time; in the third aspect, the heat generated on the cell is taken away by the cooling water in the capillary heat exchange pipe network in time, so the solar cell module has a good cooling effect and is suitable for being applied to a groove type solar photovoltaic module.

The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.

Drawings

FIG. 1 is a schematic view of a trough reflector according to the present invention;

fig. 2 is a schematic structural view of a solar light-transmitting heat-insulating photovoltaic device and a cooling device according to the present invention.

Detailed Description

Example 1

As shown in fig. 1 and 2, a trough-type solar photovoltaic power generation system includes a trough-type light reflecting device, a solar light-transmitting and heat-insulating photovoltaic device and a cooling device.

The solar light-transmitting heat-insulating photovoltaic device comprises a light-transmitting heat-insulating component and a photovoltaic component; the light-transmitting heat-insulating component comprises an upper organic glass plate 211, the lower surface of the upper organic glass plate is connected with an air flow channel 212, the lower surface of the air flow channel 212 is connected with a lower organic glass plate 213, and the lower surface of the lower organic glass plate 213 is connected with an upper conversion matrix film 214; namely, the upper organic glass plate 211, the air flow channel 212, the lower organic glass plate 213 and the upper conversion matrix film 214 are sequentially arranged from top to bottom and tightly attached to form a light-transmitting and heat-insulating component part of the solar light-transmitting and heat-insulating photovoltaic device.

The photovoltaic module comprises an upper glass sheet 221, the lower surface of the upper glass sheet is connected with a capillary heat exchange pipe network 222, cooling water is filled in the capillary heat exchange pipe network 222, the lower surface of the capillary heat exchange pipe network is connected with an upper packaging adhesive film 223, the lower surface of the upper packaging adhesive film 223 is connected with a battery sheet 224, the lower surface of the battery sheet 224 is connected with a lower packaging adhesive film 225, and the lower surface of the lower packaging adhesive film 225 is connected with a lower glass sheet 226; namely, the upper glass sheet 221, the capillary heat exchange pipe network 222, the upper packaging adhesive film 223, the battery sheet 224, the lower packaging adhesive film 225 and the lower glass sheet 226 are sequentially arranged from top to bottom and are tightly attached to each other, so that the photovoltaic module part of the solar light-transmitting heat-insulating photovoltaic device is formed. The upper surface of the upper organic glass plate 211 is connected with the lower surface of the lower glass sheet 226; namely, the light-transmitting heat-insulating component of the solar light-transmitting heat-insulating photovoltaic device and the photovoltaic component form a whole.

Preferably, the upper surface of the upper organic glass plate 211 is spaced from the lower surface of the lower glass sheet 226 by a gap of 0.5-1 cm, and the middle of the gap is air. In order to integrate the components of the solar light-transmitting and heat-insulating photovoltaic device, a frame (not shown in the figure) is arranged outside the solar light-transmitting and heat-insulating photovoltaic device, and the frame fixes the components into a whole.

Preferably, in order to increase the cooling effect, the capillary heat exchange tube network 222 and the upper packaging adhesive film 223 are fixed to form an integral structure.

The groove type reflecting device comprises a groove type reflecting mirror surface 11, the groove type reflecting mirror surface 11 is connected with the inner side of a rotating shaft 13 through a support rod 12, the outer side of the rotating shaft 13 is fixedly connected with a support bracket 14, and the support bracket 14 is fixed with the ground; the solar light-transmitting heat-insulating photovoltaic device is fixed on the focusing center of the groove-type reflecting mirror surface 11 through a fixing rod 15, and the lower surface of an up-conversion substrate film 214 of the solar light-transmitting heat-insulating photovoltaic device is opposite to the light-condensing center of the groove-type reflecting mirror surface 11.

The cooling device comprises a water cooling device and an air cooling device, the water cooling device comprises a cooling water tower 311, a cooling water outlet of the cooling water tower 311 is connected with a water inlet of a first circulating pump 312, a water outlet of the first circulating pump 312 is connected with one end of a capillary heat exchange pipe network 222, and the other end of the capillary heat exchange pipe network 222 is connected with a water inlet end of the cooling water tower 311. The capillary heat exchange pipe network 222 is filled with cooling water, when the cooling water works, the cooling water cools the battery piece 224 and then enters the cooling water tower 311, the cooling water taking heat away is cooled in the cooling water tower 311, then the cooling water is driven by the first circulating pump 312, and a part of the cooling water enters the capillary heat exchange pipe network 222 to finish the water cooling work.

The air cooling device comprises a circulating fan 321, an air inlet of the circulating fan is communicated with the atmosphere, an outlet of the circulating fan is connected with an inlet of a circulating cooling structure, an outlet of the circulating cooling structure is connected with one end of an air flow channel 212 through a pipeline, and the other end of the air flow channel 212 is communicated with the atmosphere; the circulating fan 321 blows cold air of the circulating cooling structure into the air flow channel 211, so that the solar light-transmitting heat-insulating photovoltaic device is cooled.

The circulating cooling structure comprises a humidifier 322, the humidifier 322 is a frame-type structure, an inlet is formed in one side wall of the humidifier 322, an outlet (not shown in the figure) is formed in the side wall opposite to the inlet, a plurality of wet curtains 3221 are installed in the humidifier 322, the wet curtains 3221 are arranged in the direction perpendicular to the inlet, an atomizing nozzle pipe 3222 is arranged at the top of the inner wall of the humidifier 322, and the atomizing nozzle pipe 3222 is connected with a water outlet of the first circulating pump 312; the inner wall of the humidifier 322 is provided with a water collecting outlet 3223, the water collecting outlet 3223 is connected with a water inlet of the second circulating pump 323, and a water outlet of the second circulating pump 323 is connected with a water inlet end of the cooling water tower 311.

The cooling water in the cooling water tower 311 is driven by the first circulating pump 312, a part of the cooling water enters the atomizing nozzle pipe 3222, and the nozzle of the atomizing nozzle pipe 3222 sprays the cooling water toward the wet curtain 3221 below, so that the whole wet curtain 3221 is sprayed with the cooling water, thereby reducing the temperature of the air inside the humidifier 322, blowing the reduced temperature by the circulating fan 321, entering the air flow channel 212 through the pipeline, and performing air cooling on the solar light-transmitting heat-insulating photovoltaic device.

During operation, the second circulating pump 323 drives the water in the humidifier 322 to the cooling water tower 311, and the water is cooled in the cooling water tower 311, and then is driven by the first circulating pump 312 to enter the atomizing nozzle 3222 and sprinkle the water to the wet curtain 3221, thereby realizing the circulating cooling operation.

The invention has the following advantages: the cost is low, sunlight irradiates the photovoltaic module after being condensed by the groove type reflecting mirror surface 11, and more sunlight is absorbed by the photovoltaic module in unit area, so that the use amount of the photovoltaic module is greatly reduced, and the cost is reduced.

The solar cell with the up-conversion matrix membrane 214 has high efficiency, before the concentrated sunlight irradiates the cell piece 224, the concentrated sunlight firstly passes through the up-conversion matrix membrane 214, the up-conversion matrix membrane 214 can convert far infrared rays generating heat into visible light, the generation of heat is reduced, the visible spectrum is increased, the cell piece 224 can absorb more visible spectra, the power generation amount is increased, and the system power generation efficiency is improved.

The cooling effect is good, and the temperature of the photovoltaic module is reduced in three aspects; first, the upconversion matrix film 214 filters out most of the far infrared rays that can generate heat; secondly, the heat generated by the upconversion matrix membrane 214 is taken away by the air in the air flow channel 212 in time; in the third time, the heat generated on the cell 224 is taken away by the cooling water in the capillary heat exchange pipe network 222 in time, so that the solar cell module has a good cooling effect and is suitable for being applied to a groove type solar photovoltaic module.

The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.