Liner for solar heat collective header

Abstract

The invention discloses a liner for a solar heat collective header and belongs to the technical field of solar water heaters. The liner comprises a cooper tube liner and a plurality of heat exchange modules, wherein yarn ends used for being connected with the cooper tube liner are fixed to the two ends of the cooper tube liner respectively; the heat exchange modules sleeve and are fixed to the cooper tube liner and are also provided with heat collective tube cooper tube fixing holes respectively; an axis of each heat collective tube cooper tube fixing hole is perpendicular to that of the cooper tube liner; a plurality of heat exchange modules sleeve and are fixed to the cooper tube liner at a certain interval; and the axes of the heat collective tube cooper tube fixing holes of all the heat exchange modules after being sleeved and fixed are mutually parallel and arranged in a same plane. According to the liner, with addition of the heat exchange modules, opening brazing does not need to be carried out on the cooper tube liner, and the problem of leakage caused by opening brazing is prevented; meanwhile, as opening does not need to be carried out on the cooper tube liner, the thickness of the wall of the cooper tube liner can be reduced, the cost is saved, the pressure bearing capacity is improved, connection of the heat exchange modules and the cooper tube liner is firm, the contact is tight, and the contact area is large; and with adoption of gapless heat conduction, the heat exchange efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of solar water heaters, and in particular relates to an inner container of a solar heat collecting junction box. Background technique [0002] The solar collector header is an important part of the solar water heating project, which is used to collect and store solar heat. At present, the solar heat collector headers and heat collector tubes on the market are all connected by plugging for heat exchange and heat collection. The structure of the inner tank of the header is: a number of jacks for inserting the copper tubes of the heat collecting tubes are evenly distributed on the inner tank, and the jacks are made by punching and brazing. Since the inner tank of the header tank passes through the medium, and most of them are of the pressure-bearing type, the punching of the inner tank of the header tank is prone to leakage, and in order to improve the pressure-bearing capacity of the inner tank, thicker coppe...

AI Technical Summary

Problems solved by technology

At present, the connection method between the stainless steel wire head and the liner is generally welded. Because the material of the liner and the wire head is different, the strength of the weld is not high, and it is used under pressure. If it is used for a long time, the weld is easy to crack and leak. The welding process of the welding method is more complicated, and the welding cost is high

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