Flat plate type solar energy water heater

Abstract

The invention relates to a flat plate type solar energy water heater and belongs to the technical field of water heating facilities. The flat plate type solar energy water heater comprises a water storage tank, a frame, a tubular heat exchanger, a heat collection plate and a glass plate, wherein the water storage tank is wholly enwrapped by a thermal insulation layer and is provided with a cold water inlet interface and a hot water outlet interface; the frame is fixed with the surrounding edge part of the upper surface of the water storage tank; the tubular heat exchanger is placed on the upper surface, is fixed with the frame and is also communicated with a cavity of the water storage tank; the surface of one side of the heat collection plate is coated with a heat absorption coating layer, and a heat collecting plate with the heat absorption coating layer coated on the surface of one side is placed on the tubular heat exchanger and is fixed with the frame; and the glass plate corresponds to the upper part of the heat collection plate and is fixed with the frame. As the water storage tank is reasonably arranged in the technical scheme, the certain water storage requirements can be met so as to provide the guarantee for getting and using hot water; as the tubular heat exchanger is communicated with the cavity of the water storage tank, the water in the water storage tank can slightly circulate, flow backwards and is heated, and as the water can be directly heated by the tubular heat exchanger, the flat plate type solar energy water heater has ideal heating effect.

Description

technical field [0001] The invention belongs to the technical field of water heating facilities, and in particular relates to a flat-plate solar water heater. Background technique [0002] With the continuous enhancement of people's awareness of energy saving and environmental protection, the application of solar water heaters is gradually popularized. Most of the solar water heaters in the prior art use the structural form of vacuum tubes (also known as light-to-heat conversion glass tubes), and solar water heaters of this structural form can be seen in large numbers in Chinese patent documents, such as the one recommended by CN1027661C for example. Antifreeze solar water heater, all-plastic integrated solar water heater introduced by CN1399110A, covered anti-hail solar water heater provided by CN2879040Y, hail-resistant solar water heater with movable cover disclosed by CN2886430Y, high-strength solar water heater recommended by CN1266972Y and CN201106942Y The light-to-he...

AI Technical Summary

Problems solved by technology

In the above-mentioned document C, as compared with document B, the superconducting liquid copper tube heats the water in the water tank by means of heat transfer. During the heating process, the water in the water tank (known as the water storage tank in the patent) does not recirculate. Therefore, the situation of yin and yang water often occurs, and it is difficult to heat the water in the water tank as a whole.

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