Solar photovoltaic photo-thermal comprehensive utilization device

Abstract

The invention discloses a solar photovoltaic photo-thermal comprehensive utilization device. The device is characterized by comprising a solar cell panel. The solar cell panel comprises the tempered glass, an upper packaging layer, a solar cell sheet, a lower packaging layer and an upper thermal-arrest plate, wherein the tempered glass, the upper packaging layer, the solar cell sheet, the lower packaging layer and the upper thermal-arrest plate are sequentially stacked up from top to bottom. A lower thermal-arrest plate is arranged below the upper thermal-arrest plate. A heat exchange tube isarranged between the upper thermal-arrest plate and the lower thermal-arrest plate. A heat insulation layer is arranged on the lower surface of the lower thermal-arrest plate. The lower surface of theheat insulation layer, the peripheral side surface of the whole device and the edge of the upper surface of the toughened glass are provided with a back frame. According to the invention, the heat transfer efficiency of the heat exchange tube is obviously increased based on multiple heat transfer pathways and a higher heat exchange coefficient on the inner side of the heat exchange tube. Therefore, the heat collection efficiency of the solar photovoltaic photo-thermal comprehensive utilization device is improved. Moreover, the working temperature of a solar cell is effectively reduced and thephotovoltaic power generation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of solar photovoltaic photothermal comprehensive utilization, in particular to a solar photovoltaic photothermal comprehensive utilization device with double-layer heat collecting plates. Background technique [0002] Solar photovoltaic power generation technology is a new energy technology that is vigorously promoted by the state and has broad application prospects. According to the statistics of the National Energy Administration, as of the end of 2015, my country's cumulative installed capacity of photovoltaic power generation has reached 43.18 million kilowatts, becoming the country with the largest installed capacity of photovoltaic power generation in the world. The annual power generation capacity is 39.2 billion kWh, which is close to half of the annual power generation capacity of the Three Gorges Hydropower Station. [0003] For the solar energy projected onto the solar panel, only solar energy wit...

AI Technical Summary

Problems solved by technology

In the invention patent application with the application number 201610109081.8, it is proposed to arrange the heat exchange tubes in a serpentine shape (such as figure 1 As shown), according to the serpentine arrangement scheme, the temperature distribution of the heat exchange fluid and the solar panel will be uneven, which is not conducive to the effective cooling of the solar panel

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