Flat plate collector with heat pipes

Abstract

The invention discloses a flat plate collector with heat pipes. An absorber plate core of the flat plate collector comprises an upper communicated header, a heat exchange pipe and heat collecting pipes; each heat collecting pipe comprises a heat collecting runner and heat collecting fins arranged on the two sides of the heat collecting runner; the heat exchange pipe is arranged in the upper communicated header, and the tail end and the head end of the heat exchange pipe extend out of the upper communicated header; the two ends of the upper communicated header are sealed with the heat exchange pipes; the upper communicated header is arranged above the heat collecting runners and communicated with a plurality of heat collecting runners; the upper openings of the heat collecting runners are lower than the bottom of the upper communicated header, and the bottom ends of the heat collecting runners are sealed; the heat collecting runners are filled with heat pipe media; and the heat collecting runners and the heat collecting fins are of an integral structure. The flat plate collector has the advantages that as the heat collecting pieces are formed through one-time extrusion, the problems on firmness and heat resistance caused by laser welding or ultrasonic welding are avoided; the defects of frost cracking of a common heat collector in winter and scaling of a pipeline of a common flat plate collector are overcome; and a channel can be formed in each heat collecting runner, and thus the heat transfer effect of the flat plate collector can be improved effectively.

Description

technical field

[0001] The invention relates to a solar heat collector, in particular to a flat plate heat collector. Background technique

[0002] The flat-plate solar collectors commonly used in the market currently include copper runners and heat-absorbing plates with heat-absorbing coatings. The upper heat collector runner, the lower heat collector runner and the middle heat collector branch pipe form an "H" type copper runner, and the aluminum plate or copper plate with heat absorbing coating is welded on the heat collector branch pipe by ultrasonic or laser welding. Water is stored in the copper flow channel. When the sun shines on the plate with heat-absorbing coating to heat it, the plate then transmits heat to the heat collecting branch pipe to heat the water inside the branch pipe. Hot water will store heat in the water tank through circulation, forming a commonly used household solar water heater system. Its disadvantages are: the upper collector runner, the low...

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