Closed runner flat-plate solar heat collector plate core

Abstract

The invention discloses a closed runner flat-plate solar heat collector plate core. The closed runner flat-plate solar heat collector plate core comprises a heat absorption plate, a plurality of exhaust pipes which are arranged at the back of the heat absorption plate, a collection pipe which is arranged at one end of the heat absorption plate and connected with one end of each exhaust pipe, and a sleeve type vacuum heat-preserving heat exchange device which is arranged at the other end of the heat absorption plate, wherein the sleeve type vacuum heat-preserving heat exchange device consists of a vacuum heat-preserving sleeve, a heat conduction medium sleeve which is sleeved in the vacuum heat-preserving sleeve and a heated medium straight-through pipe which is sleeved in the heat conduction medium sleeve; a heat conduction medium bin is formed between the heat conduction medium sleeve and the heated medium straight-through pipe; and the other end of each exhaust pipe is connected with the heat conduction medium bin. The closed runner flat-plate solar heat collector plate core has the advantages that a heat conduction medium can be packaged before manufacturing of the plate core is finished, the plate core is convenient to install, the problem about the quality of pipeline welding or connection in the installation process is effectively solved, the heat conduction medium is prevented from being leaked, the heat conduction medium has anti-freezing and anti-scale functions, the maintenance of a flat-plate solar heat collector is greatly reduced, and an application range is expanded.

Description

technical field [0001] The invention relates to a flat solar heat collector, and more specifically relates to a plate core of a closed channel flat solar heat collector. Background technique [0002] The flat plate solar collector is mainly composed of a heat absorbing plate, a pipe welded with the heat absorbing plate, a header, a transparent cover plate, a heat insulation layer and an outer shell, and a header is welded at each end of the pipe, and the heat transfer medium is After the installation is completed, it will be filled into the headers and row pipes. The heat transfer medium will be distributed from a header at one end of the row pipes and then flow into each row of pipes to exchange heat with the heat-absorbing plate. The header flows out, and the heat transfer medium flows in the header and row pipe to absorb heat. Since the installation process is completed after leaving the factory, after the installation is completed, the heat transfer medium is filled int...

AI Technical Summary

Problems solved by technology

Since the installation process is completed after leaving the factory, after the installation is completed, the heat transfer medium is filled into the header and row pipes. During the installation process, there will often be problems with the welding or connection quality of the pipelines, resulting in the leakage of the heat transfer medium from the leaking solder joints, and the installation The process is complicated and not easy to install; in addition, in cold regions, the heat transfer medium is easy to freeze in the header and row pipes and cause blockage

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