Heat exchange unit with three-dimensional variable cross-section spoiler structure and compact solar heat absorber

Abstract

The application provides a heat exchange unit with a three-dimensional variable cross-section disturbance structure and a compact solar heat absorber, and relates to the technical field of solar heat absorbers. The heat exchange unit comprises oppositely arranged hot side wall plates and non-hot side wall plates, a medium channel is formed between the hot side wall plates and the non-hot side wall plates, a plurality of disturbance columns are arranged in the medium channel, the first end of the disturbance column is fixedly arranged on the hot side wall plate, the second end of the disturbance column extends towards the non-hot side wall plate, the disturbance column is smoothly and transitionally connected with the hot side wall plate, and the cross-sectional area of the second end of the disturbance column is smaller than the cross-sectional area of the first end of the disturbance column. The scheme provided by the application can improve the heat exchange performance, reduce the pressure drop loss of the channel and prolong the service life.

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