Air interchanger with air-cycle adjusting purification function

Abstract

The invention discloses an air interchanger with an air-cycle adjusting purification function. The air interchanger comprises a case, a fan unit, a multi-filtering unit, a heat exchange unit, a sensing and controlling unit and a switching structure. The case is provided with an air inlet space, an air exhaust space, an air outlet communicating with the air inlet space, an air inlet communicating with the air exhaust space and an air conveying opening enabling the air inlet space and the air exhaust space to communicate. The fan unit, the multi-filtering unit and the heat exchange unit are all arranged in the air inlet space in the case. The switching structure is arranged in the case and close to the air conveying opening and comprises a driving motor and a swing blade plate in power connection with the driving motor, and the swing blade plate is selectively located in an opening position to block communication between the air inlet space and the air exhaust space, or located in a closed position to enable the air inlet space and the air exhaust space to communicate. Accordingly, the air interchanging purpose is achieved by automatic switching of an external circulating mode and an internal circulating mode according to detected indoor and outdoor air quality and temperatures.

Description

technical field [0001] The invention relates to a ventilating device, in particular to a ventilating device capable of regulating and switching gas cycle purification modes. Background technique [0002] Because air quality is related to health, in order to avoid poor ventilation in the indoor environment, most of the closed indoor spaces are equipped with a total heat exchange system to draw in the outside air and introduce the purified air after multi-layer filtration into the indoor space. Indoor dirty air is discharged to the outside to form ventilation, and then achieve the purpose of ventilation to keep the indoor air fresh. [0003] The full heat exchange system has the following disadvantages. First, when the outdoor air quality is extremely poor or there is a strong odor, the service life of the filter device in the system will be greatly reduced, and even the dust particles in the outdoor air cannot be completely filtered. Odor molecules; second, in the process of...

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Problems solved by technology

[0003] The full heat exchange system has the following disadvantages. First, when the outdoor air quality is extremely poor or there is a strong odor, the service life of the filter device in the system will be greatly reduced, and even the dust particles in the outdoor air cannot be completely filtered. Odor molecules; second, in the process of ventilation, it will cause convection between the indoor and the outside air. Due to the temperature difference between the indoor and the outside air, especially when the room is a cold room, the ventilation will lead to the loss of energy , resulting in increased power consumption and insufficient cooling room capacity. Third, the intake and exhaust channels are connected to individual exhaust pipes, which leads to the problem that the system occupies too much volume.

In addition, when the external ambient air is seriously polluted or the PM2.5 is high, or the external air has a strong odor, the current wall-mounted fresh air fan cannot prevent the heavily polluted external air from entering the room.

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