Solar flat plate collector

Abstract

The invention discloses a solar flat plate collector which comprises a shell. A heat insulation board, a heat absorption board core and a high transmittance board are sequentially stacked in the shell, the heat absorption board core comprises a heat collection water inlet pipe, a heat collection water outlet pipe and a plurality of heat collection rack pipe components, the heat collection water inlet pipe and the heat collection water outlet pipe are arranged at two ends of the heat absorption board core, the heat collection rack pipe components are mounted between the heat collection water inlet pipe and the heat collection water outlet pipe, each heat collection rack pipe component comprises a heat collection rack pipe and heat collection fins, two ends of each heat collection rack pipe are communicated, an arc structure is arranged on each heat collection fin and sleeved on the outer wall of each heat collection rack pipe, and the outer diameter of each arc structure is as same as that of each heat collection rack pipe. The arc structures wrap external circles of the heat collection rack pipes, the contact area of the heat collection fins and the heat collection rack pipes is large, combined heat resistance is low, and the solar flat plate collector has the advantages of inexpensiveness of processing equipment and simplicity in assembly.

Description

technical field [0001] The invention relates to the technical field of heat collectors, in particular to a solar flat plate heat collector. Background technique [0002] Because flat-panel solar water heaters can be better integrated with buildings, they are used more and more. The collector plates of flat-plate collectors generally have three structures: flat box type, wing-tube type and tube-sheet type. The above three structures constitute the mainstream of the plate core of today's flat-plate collectors, but the above three structures have different disadvantages , the flat box type has high heat transfer efficiency but is not easy to process. The fin tube type has a hollow fin before welding the heat collecting fin and the flow channel. It is inconvenient to process copper tubes for the channel. The tube-sheet structure uses laser or ultrasonic to weld the heat collecting fins on the flow channel. For the convenience of welding, copper pipes are also used for the flow...

AI Technical Summary

Problems solved by technology

The collector plates of flat-plate collectors generally have three structures: flat box type, wing-tube type and tube-sheet type. The above three structures constitute the mainstream of the plate core of today's flat-plate collectors, but the above three structures have different disadvantages , the flat box type has high heat transfer efficiency but is not easy to process. The fin tube type has a hollow fin before welding the heat collecting fin and the flow channel. It is inconvenient to process copper tubes for the channel. The tube-sheet structure uses laser or ultrasonic to weld the heat collecting fins on the flow channel. For the convenience of welding, copper pipes are also used for the flow channel, which is inconvenient to process. The air between the glass cover plate and the heat collecting fins of the above three types of flat solar panels is a whole. The heat is uneven between the upper part and the lower part, and the upper part of the glass cover has a high temperature and the heat loss to the outside is relatively large

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