Total heat exchanger and ventilation system using the same

Abstract

A total heat exchanger having a structure capable of achieving an enhancement in total heat efficiency, and a ventilation system using the total heat exchanger are disclosed. The total heat exchanger includes an air supply duct for guiding outdoor air to an indoor space, an air discharge duct for guiding indoor air to the outdoors, an air supply fan arranged at one side of the air supply duct, the air supply fan sucking the outdoor air, and supplying the sucked air to the indoor space, an air discharge fan arranged at one side of the air discharge duct, the air discharge fan sucking the indoor air, and discharging the sucked air to the outdoors, and a heat exchanging element arranged at a region where the indoor air and the outdoor air cross each other, the heat exchanging element heat-exchanging the indoor air with the outdoor air. The heat exchanging element has a shape causing the indoor air and the outdoor air to flow through the heat exchanging element while forming an acute angle with respect to each other.

Description

[0001] This application claims the benefit of Korean Patent Application No. P2005-46326, filed on May 31, 2005, which is hereby incorporated by reference as if fully set forth herein. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a total heat exchanger and a ventilation system using the same, and more particularly, to a total heat exchanger which has an improved structure so as to have an increased heat exchange area, thereby being capable of achieving an enhancement in total heat efficiency, and a ventilation system using the total heat exchanger. [0004] 2. Discussion of the Related Art [0005] Generally, air present in a confined space, for example, an indoor space, is gradually contaminated as time passes in accordance with repeated respiration of living beings in the indoor space. Accordingly, it is necessary to frequently replace contaminated air in the indoor space with fresh outdoor air. To this end, a ventilation system u...

AI Technical Summary

Benefits of technology

The present invention provides a total heat exchanger and a ventilation system that have increased total heat efficiency and reduced flow resistance. The total heat exchanger has a heat exchanging element that causes the indoor and outdoor air to flow through it while forming an acute angle from each other, resulting in improved heat exchange. The ventilation system includes an air supply duct, an air discharge duct, and air supply and air discharge fans that guide the air flows through the heat exchanging element. The system also includes a first and second extension duct for diffusing the outdoor air into the indoor space. The technical effects of the invention include improved heat exchange efficiency, reduced flow resistance, and improved air quality.

Problems solved by technology

Generally, air present in a confined space, for example, an indoor space, is gradually contaminated as time passes in accordance with repeated respiration of living beings in the indoor space.

However, the total heat exchanger has the following problems.

First, the height of the total heat exchanger, which is installed in the interior of a ceiling, is restricted because the ceiling is designed to have a restricted thickness.

Second, the flow rate of air passing through the heat exchanging element is too high to enable the heat exchanging element to effectively perform a desired heat exchanging operation.

As a result, a degradation in the efficiency of the total heat exchanger occurs.

Third, there is a problem in that an increase in flow resistance occurs because the flow directions of indoor air and outdoor air passing through the heat exchanging element are greatly varied.

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