Absorber plate core of solar flat-plate collector and solar flat-plate collector

Abstract

The invention relates to the field of solar water heaters, in particular to an absorber plate core of a solar flat-plate collector and the solar flat-plate collector. The absorber plate core comprises two collectors and a tube bank, wherein the tube bank is arranged between the two collectors and is communicated with the two collectors, the collectors and the tube bank are all made of a high temperature-resistant thermal conductive plastic material having a solar energy absorbing function, and the base material of the high temperature-resistant thermal conductive plastic material is one of polypropylene, polyethylene, polybutylene, polycarbonate, polyamide fibre, teflon, modified polypropylene, modified polyethylene, modified polybutylene, modified polycarbonate, modified polyamide fibre and modified teflon. The absorber plate core is made of the high temperature-resistant thermal conductive plastic material, cannot be corroded, and has high incrustation resistance; the mass of an all-plastic flat plate collector can be lightened by over a half, transportation is convenient, and the price is low. Heat absorption is performed on a working medium by the plastic plate core, the heated working medium is gathered to the other collector to be transmitted out, and a plastic pipeline quickly absorbs solar radiation energy.

Description

technical field [0001] The invention relates to the field of solar water heaters, in particular to a heat-absorbing plate core of a solar flat heat collector and the solar flat heat collector. Background technique [0002] Traditional flat-plate collectors usually consist of a metal heat-absorbing plate core, profile frame, glass cover plate, thermal insulation cotton and back plate. The heat-absorbing plate core is the core of the flat-plate collector. The heat-absorbing plate core of the flat-plate collector is mainly composed of two parts: metal pipeline and metal heat-absorbing coating. The metal heat-absorbing coating is connected to the metal pipeline by welding. Metal pipelines are mainly composed of headers, row pipes and external fittings. The heat-absorbing plate core absorbs solar radiation through the metal heat-absorbing coating and converts it into heat energy. The heat energy is absorbed by the heat transfer working medium flowing through the header, and then...

AI Technical Summary

Problems solved by technology

[0003] Because the traditional flat plate collector is a metal pipeline, it is easy to scale and has poor corrosion resistance. Long-term corrosion will cause the pipeline to become thinner, and even cause water leakage in the pipeline.

If the collector enters water or generates relatively serious water mist, the metal coating will be corroded quickly, seriously affecting the heat absorption performance of the collector

[0004] Due to the high density of metal and glass, the weight of flat plate collectors is usually very large, which makes transportation and installation inconvenient

and the price is high

[0005] Moreover, the thermal insulation cotton of the flat collector will produce volatile substances at high temperature inside the collector, which will affect the heat absorption performance of the collector.

[0006] Based on the above description, there is an urgent need for a heat-absorbing plate core of a solar flat panel collector to solve the problems of easy scaling, poor corrosion resistance, heavy weight and high price of the metal flat panel collector in the prior art

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