Heat exchange core for ventilation

Abstract

The invention discloses a heat exchange core for ventilation. The core comprises heat exchange units, a top plate and a bottom plate. Each heat exchange unit includes a quadrangular heat exchange membrane, an end sealing strip, a side sealing strip and two flow guide sealing strip. Each end sealing strip and each side sealing strip are arranged on two adjacent borders of the corresponding quadrangular heat exchange membrane, and every two flow guide sealing strips are arranged on the edge of the corresponding heat exchange membrane opposite to the corresponding side sealing strip and positioned at the same straight line. The top plate is fixedly connected with the uppermost heat exchange membrane through the sealing strips. The bottom plate is fixedly connected with the lowermost heat exchange membrane through the sealing strips. According to the heat exchange core for the ventilation, flow-induced vibration is introduced in an air-to-air heat exchange process, traditional heat exchange materials are replaced by hydrophilic aluminizing kynar membranes, and therefore the heat exchange core for the ventilation has hydrophilia and great diathermancy and achieves exchange between a hotcondition and a wet condition. Air flow can trigger vibration of the heat exchange membranes, reduce thermal resistance of dirt and ensure a great heat exchange effect.

Description

technical field [0001] The invention relates to a heat exchanger, in particular to a fresh air heat exchange core. Background technique [0002] With the aggravation of indoor air pollution, the use of fresh air systems is becoming more and more popular. The fresh air fan with heat recovery function can ensure indoor ventilation and at the same time reduce energy loss, and has the advantage of energy saving. The heat exchange system is based on the two-way flow basis, and the heat exchange core with energy exchange function inside can exchange heat between the dirty air discharged from the outside and the fresh air sent into the room in this total heat exchange device, so as to achieve the recovery of cooling capacity, purpose of heat. Fresh air waste heat recovery is an air-to-air heat exchange process. The fin structure of the traditional fresh air ventilator is complicated, easy to block, difficult to clean and maintain, and the thermal resistance of dirt is large, whic...

AI Technical Summary

Problems solved by technology

Fresh air waste heat recovery is an air-air heat exchange process. The fin structure of the traditional fresh air ventilation core is complicated, easy to block, difficult to clean and maintain, and the thermal resistance of dirt is large, which affects the heat transfer effect.

The existing fresh air ventilator core materials are divided into total heat recovery type and sensible heat recovery type. The total heat recovery uses paper or film heat exchange materials. Under the action of the temperature and humidity difference between outdoor and indoor air, heat and humidity can be realized. exchange, but the heat exchange rate is not high

The heat exchange material of the fresh air ventilator body of the sensible heat recovery type is usually aluminum foil or aluminum alloy, which can only exchange heat between outdoor air and indoor air, and cannot exchange moisture.

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