Photovoltaic heat collection plate of semicircle pipe flow channel

Abstract

The invention provides a photovoltaic heat collection plate of a semicircle pipe flow channel. The photovoltaic heat collection plate of the semicircle pipe flow channel is formed by a solar photovoltaic heat collection plate with a multilayer structure and the semicircle pipe flow channel which is welded and adhered to a back plate of the heat collection plate. The solar photovoltaic heat collection plate is formed by a protection layer, a solar cell panel, an insulating layer, the back plate and a glue film layer. The semicircle pipe flow channel is formed though collecting up and down and welding a semicircle branching pipe and a circle red copper pipe which are arranged in parallel and in a snakelike mode. A refrigerant inlet is located below the photovoltaic heat collection plate and an outlet is located above the photovoltaic heat collection plate. A flow channel pipeline is formed through processing a soft red copper circular pipe. The soft red copper circular pipe becomes a red copper semicircle pipe through a rolling pressing rail whose gap is continuously contracted into a semicircular shape. In the invention, a contact area of the solar cell panel and a refrigerant flow channel is increased, solar surface temperature distribution uniformity is guaranteed, a surface average temperature of the solar cell panel is reduced and photovoltaic generating efficiency is increased.

Description

technical field [0001] The invention relates to a photovoltaic heat collecting plate, in particular to a photovoltaic battery heat collecting plate with a refrigerant flow channel. Background technique [0002] The photovoltaic collector plate is a key component of the photovoltaic collector to absorb solar radiation to generate electricity and transfer heat to the heat transfer medium. The electrical efficiency of photovoltaic panels decreases as the temperature of the panels increases. Taking away the heat energy in the solar radiation that cannot be converted into electrical energy can not only improve the photoelectric efficiency, but also obtain considerable heat energy. The solar radiation is absorbed by the photovoltaic panels, part of the wavelength of the solar radiation is converted into electricity through photoelectric conversion, and the rest is converted into heat energy and absorbed by the heat collector plate, and the heat is conducted to the working fluid in...

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: The purpose of the present invention is to propose an improved photovoltaic collector plate with a semicircular tube flow channel, which solves the problem of low photoelectric efficiency when the temperature of the photovoltaic cell panel is too high, and can not only effectively increase the refrigerant flow channel and The contact area of ​​the solar panel is large, and the cooling liquid is evenly distributed, which is convenient for processing

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