High-temperature high-efficiency flat plate collector

Abstract

The invention discloses a high-temperature high-efficiency flat plate collector, and relates to collectors. The high-temperature high-efficiency flat plate collector is composed of three parts including a transparent cover plate, a heat collection pipe and a shell plate; the heat collection pipe is a blue film and black cadmium or silicon film heat collection pipe; the inner layer of the shell plate is a light reflecting and focusing heat preservation plate with an arc-shaped face; and the heat collection pipe is fixed into space of the arc-shaped face of the shell plate, and the transparent cover plate is fixed to the upper face. The high-temperature high-efficiency flat plate collector is simple in structure, higher in heat collection efficiency, higher in mechanical strength, smaller in cost and weight, easy to produce, transport and install and higher in safety.

Description

technical field [0001] The invention relates to a heat collector, in particular to a high-temperature and high-efficiency flat plate heat collector. Background technique [0002] Solar energy is currently the most clean, environmentally friendly, and inexhaustible energy source. It is a better alternative for human beings to solve fossil energy consumption, environmental pollution, and greenhouse effect. The existing solar energy utilization method is mainly to generate electricity and generate heat after collecting solar energy, and the existing solar light collection devices generally have the disadvantages of low collection rate and utilization rate. [0003] The traditional flat plate collector is composed of transparent glass cover plate 1, heat absorbing plate 2, fluid heat transfer pipe 3, insulation layer 4 and shell 5. The structure is as follows figure 1 As shown, after the solar radiation penetrates the glass cover plate 1, it is transmitted on the heat absorbing...

AI Technical Summary

Problems solved by technology

The collector with traditional structure has the following defects: (1) The heat absorbing plate is generally made of copper plate, and the row pipe is made of aluminum tube. Due to the potential difference between different metals, potential corrosion is easy to occur, which seriously affects the life of the flat plate collector; (2) Most of the film layer is colored by anodic oxidation, which has low heat absorption rate and high emissivity, and its service life is generally about ten years; (3) It is heavy, poor in integrity, and low in safety

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