Two-way stream host and control method thereof

Abstract

The invention provides a bidirectional flow host machine and a control method of the bidirectional flow host machine. An electric valve with an opening capable of being freely regulated is arranged on an air opening communicated with the outside, and the electric valve can be opened along with the starting of the host machine for realizing indoor and outdoor air convection; when the host machine is turned off, the electric valve is closed, and the external airflow backflow is prevented. A bypass valve is opened through closing the electric valve connected onto the outdoor air opening, indoor return air with higher temperature is sent into the room after passing through a heat recovery kernel twice, and the frosting-proof effect is improved. The indoor return air with higher temperature further passes through the heat recovery kernel twice and is then sent into the room after passing through an ultrasonic wave humidifier, and the humidifying effect is ensured.

Description

technical field [0001] The invention relates to a ventilation device, in particular to a two-way flow host and a control method thereof. Background technique [0002] The ventilation device is used to realize the replacement of indoor and outdoor air. If there is no valve on the pipeline connected to the outdoor in the main unit of the existing ventilation device, then when the main unit is closed, the airflow will flow backward, and cold air in winter or hot air in summer will enter the room, causing indoor energy loss. At the same time, when the outdoor environment is bad and the wind speed is very high, when it enters the pipeline, it will cause howling. Even rainwater enters the host, causing malfunctions. [0003] Therefore, a check valve is usually installed on the pipeline connected to the outdoor in the main unit of the existing device. When the air flows downstream, the valve disc is opened by air thrust. On the seat, it prevents the reverse flow of air. However...

AI Technical Summary

Problems solved by technology

When the outdoor exhaust air conducts energy exchange, due to its temperature drop, it is easy to cause moisture in the air to condense, and the small air duct on the energy recovery core produces frost, which causes the motor inside the machine to burn out, and the air flow channel is blocked, etc. Fault, the problem of stopping the supply of fresh air in the outlet room

At present, the mainframes on the market do not have the anti-frost function, so they are not suitable for the cold regions in the north.

[0005] In addition, under normal circumstances, the winter in the north is relatively dry, and the indoor air needs to be humidified, while the outdoor temperature is very low. As we all know, the lower the temperature, the worse the humidification effect

General products cannot cut off the outdoor fresh air when humidifying, resulting in the indoor air supply temperature is still very low, and the humidification effect is affected

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