Solar heat-collector and manufacture method

Abstract

The invention discloses a solar thermal collector and a method for manufacturing the same. The solar thermal collector is made of glass material, comprising a shell, a heat collecting pipe assembly, a water inlet pipe and a water outlet pipe, wherein, the heat collecting pipe assembly is formed by parallel odd number of rectangular tubes which are connected in series, and is coated with metallic film in the inner surface; a plurality of conical projections are arranged on the inner surface of the shell; sharp parts of the conical projections are pressed on the outer surface of the heat collecting pipe assembly; the water inlet pipe enters the shell from the bottom-left side and is connected with a water inlet of the heat collecting pipe assembly; the water outlet pipe enters the shell from the top-right side and is connected with a water outlet of the heat collecting pipe assembly; a vacuum is made between the shell and the heat collecting pipe assembly; a die of the heat collecting pipe assembly comprises an upper die, a moulding box and a lower die, the lower die is arranged under the moulding box, then hot glass melt is put in the moulding box, finally the upper die is pressed down; after the glass is cooled, the semi-finished product is taken out, annealed and coated with film; the water inlet pipe and the water outlet pipe are arranged; and six toughening outside casing plates are covered on the heat collecting pipe assembly, sealed and connected, and vacuumized so as to manufacture the solar thermal collector.

Description

technical field [0001] The invention relates to a solar heat collector and a manufacturing method of the solar heat collector. Background technique [0002] On November 22, 2006, the 47th Utility Model Bulletin announced the public number CN2839901Y solar collector, and the public number CN2839904Y coil type antifreeze flat solar collector. They all have a common feature: an insulation layer is installed in the frame , metal solar collector tubes are installed on the thermal insulation layer, and then a transparent protective plate is installed above the thermal collector tubes. The heat preservation effect of the solar heat collector of this structure is relatively poor, and a layer of frost or fog will be condensed on the inner surface of the transparent protective plate in winter in the north, so that the heat collector cannot absorb solar energy. Contents of the invention [0003] The invention provides a solar thermal collector and a method of manufacturing such a so...

AI Technical Summary

Problems solved by technology

The thermal insulation effect of the solar collector with this structure is poor, and a layer of frost or fog will condense on the inner surface of the transparent protective plate in winter in the north, so that the collector cannot absorb solar energy.

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