Electric heat exchanger and ventilation system using same

Abstract

A heat and electricity exchanger comprises heat exchanging components installed at the cross section of the exhaust channel and the absorbing channel, allowing the exchange of heat of the indoor and outdoor air, air absorbing fan absorbs air inside room, exhaust fan expels indoor air out, with the cross section of the heat exchanging unit forming into a multi angle shape with the horizontal or vertical length longer than lengths in other directions, with the cross section of the heat exchanging component in four angular shape. Though lowering down the air flow inside the heat exchanging component, reducing the curve degree of the air absorption and exhaust flow channel, it can reduce the pressure loss going through the flow channel.

Description

technical field [0001] The invention relates to an electric heat exchanger and a ventilation system using the electric heat exchanger. Background technique [0002] When a user who is active indoors is breathing or the like, the air in the closed room is gradually polluted over time. Therefore, it is necessary to replace indoor polluted air with outdoor fresh air at any time. For this purpose, an electric heat exchanger and a ventilation system using an electric heat exchanger are generally used. Here, the electric heat exchanger is a device that supplies outside air and discharges indoor air while maintaining the temperature of indoor air. [0003] As shown in Figure 1, the existing electric heat exchanger includes: a heat exchange element 5, which is installed in the suction flow path 10 as the passage for supplying outdoor air to the room, and the exhaust flow path 10 as the passage for the indoor air to be discharged to the outside. On the area where the air flow path ...

AI Technical Summary

Problems solved by technology

[0018] First, when designing the building, due to the limitation of the height of the ceiling, the height of the electric heat exchanger will be limited, and thus the height of the heat exchange element will also be limited. As a result, the height of the heat exchange element is limited The size of the heat exchange area will be limited, resulting in a relative reduction in the electrothermal efficiency of the electric heat exchanger

[0019] Second, because the flow rate of air passing through the heat exchange element is too high, the heat exchange operation will not be effective in the above heat exchange element, and the efficiency of the electric heat exchanger will become low

[0020] Third, due to the large bend in the flow direction of the suction flow path and the exhaust flow path, the pressure loss through the flow path is large

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