Core body of flat-plate heat exchanger for fresh air ventilator

Abstract

The present invention discloses a core body of a flat-plate heat exchanger for a fresh air ventilator, which comprises quadrangular plastic heat exchanging membranes, a top plate in the same shape asthat of the plastic heat exchanging membranes, a bottom plate and sealing strips. The upper surfaces on the near edges of two opposite edges of the plastic heat exchanging membranes with odd number are fixedly connected with the lower surfaces on the near edges of two opposite edges of the plastic heat exchanging membranes with even number through the sealing strips to form first airflow channels,the upper surface on the near edges of another two opposite edges of the plastic heat exchanging membranes with even number are fixedly connected with the lower surfaces on the near edges of two opposite edges of the other plastic heat exchanging membranes with odd number through the sealing strips to form second airflow channels crisscrossed with the adjacent first airflow channels, the top plate is fixedly connected with the uppermost plastic heat exchanging membranes through the sealing strips, and the bottom plate is fixedly connected with the lowermost plastic heat exchanging membranes through the sealing strip. The present invention has the advantages of favorable heat transfer performance, high heat exchanging efficiency, low weight and cost, simple structure, low production and running cost, convenient installation and easy integration with constructions.

Description

technical field [0001] The invention relates to a heat exchanger core body, in particular to a flat plate heat exchanger core body for a fresh air ventilator. technical background [0002] With the acceleration of social modernization, people spend more and more time working and living indoors. The indoor air quality is more important to the health of the human body. Air quality requirements are getting higher and higher. In the air-conditioning load of buildings, the proportion of fresh air load is increasing year by year. In foreign countries, fresh air load generally accounts for 20-30% of the total building air-conditioning load. At the same time, a large amount of heat (cold) in the air discharged from the room is discharged into the atmosphere, which not only causes thermal pollution to the urban air, but also wastes a large amount of energy. The fresh air heat exchanger adopts a heat exchange device, which realizes two-way ventilation indoors and outdoors, improves ...

AI Technical Summary

Problems solved by technology

[0003] At present, the fresh air ventilators in the market mostly use plate-fin cross-flow heat exchangers with partitions. Due to the existence of partitions, the heat exchange plates cannot be directly contacted. Although various improvement measures have been taken, the heat transfer efficiency is still low. , cross-contamination, high cost, difficult maintenance, large volume and weight, etc., which limit the popularity of fresh air ventilators

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