Counter-flow heat exchange core body for fresh air ventilator

Abstract

A counterflow heat exchange core body for a fresh air exchanger is composed of a top plate (1), a bottom plate (5) and 2-500 heat exchange units which have the same shape. The heat exchange unit is composed of a heat exchange membrane (3), an end seal strip (4) and two lateral seal strips (2). The end seal strip (4) is arranged on the upper surface of one end edge of the heat exchange membrane (3). The lateral seal strip (2) is arranged on the upper surface of the lateral edge of the heat exchange membrane (3) with one end thereof aligned with the other end of the heat exchange membrane (3). The length of the lateral seal strip (2) is 9 / 10-1 / 2 of the length of the lateral side of the heat exchange membrane (3). The adjacent upper and lower heat exchange units are overlapped at an angle of 180 degrees and connected fixedly. The top plate (1) is fixed on the top heat exchange unit and the bottom plate (5) is fixed under the bottom heat exchange unit.

Description

technical field [0001] The invention relates to a heat exchange core body, in particular to a counterflow heat exchange core body for a fresh air ventilator. technical background [0002] At present, the fresh air ventilators in the market mostly use the plate-fin cross-flow heat exchange core with corrugated plate support structure. The corrugated plate support can solve the support problem of the heat exchange plate, but it is followed by an increase in resistance pressure drop , the effect of cross-flow heat exchange is far inferior to that of counter-flow. In addition, the volume of the fresh air ventilator is directly limited by the length of the diagonal of the core, so this type of heat exchange core has low heat exchange efficiency, large volume, and large resistance pressure drop. problem, thereby limiting the development and popularization of the fresh air ventilator. Contents of the invention [0003] The purpose of the present invention is to overcome the defi...

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Problems solved by technology

[0002] Most of the fresh air ventilators in the market currently use plate-fin cross-flow heat exchange cores with corrugated plate support structures. The corrugated plate support can solve the support problem of the heat exchange plate, but it is followed by an increase in resistance pressure drop , the effect of cross-flow heat exchange is far inferior to that of counter-flow. In addition, the volume of the fresh air ventilator is directly limited by the diagonal length of the core, so this type of heat exchange core has low heat exchange efficiency, large volume, and large resistance pressure drop. problems, thus limiting the development and popularization of fresh air ventilators

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