Window mounted ventilation fan is a type of axial fan which is mainly used in the negative pressure ventilation cooling project and is also called the industrial exhaust fan. The exhaust fan has the characteristics of large air passage, wind blade diameter, exhaust air volume, ultra-low energy consumption, low speed and noise.
It can be used together with the cooling curtain to solve the problem of ventilation and cooling. During the operation of the window mounted ventilation fan, a negative pressure environment is formed in the room. If a cooling curtain is installed on the other wall of the exhaust fan outlet, the exhaust fan will exhaust the indoor hot air to the outside, and will also carry indoor the low-temperature air containing rich water vapor through the cooling curtain to achieve ventilation and cooling effects.
During the process of exhausting, the air pressure in the room is lowered, the indoor air is thinned, and a negative pressure zone is formed, and therefore the air is compensated into the room due to the air pressure difference. In the practical application of industrial plants, the exhaust fans are usually installed centrally on one side of the plant, the air inlets are on the other side of the plant, and the convection forms between the air inlets and the exhaust fans. During this process, the doors and windows near the window mounted ventilation fan remain closed, forcing air to compensate and flow into the workshop from the side windows of the air intake. The air is lined up in an orderly manner, flowing into the workshop from the air inlet, flowing through the workshop, and exiting the workshop by the exhaust fan. Generally, the ventilation is thorough and efficient, and the ventilation rate can be as high as 99%. Through specific engineering design with a ventilation speed and wind speed according to needs, any high heat, harmful gas and dust smoke can be quickly discharged into the workshop, and any problem of poor ventilation can be completely solved at one time. Ventilation is achieved within seconds when turning on the fan.
There are three types of window mounted ventilation fan based on the operating environments: indoor type, kitchen type and bathroom type. The bathroom is generally small in area, about 2-4 square meters, a 150-200mm open ventilation fan is enough. The kitchen can be equipped with a 250mm ventilated fan. But if the kitchen is equipped with a hood, the ventilator can be omitted. As for the bedroom and living room, whose area is generally around 12-16 square meters, a 250-300mm two-way type ventilation fan is more suitable.
When choosing, first, make sure the appearance of the ventilation fan is novel, the color is coordinated with the color of the room, the plane is free from warping, the plastic parts are smooth, the plating parts are bright, there is no trace of rust spots, and the blades can rotate.
Second, it is worth noting that after the power is turned on, the blades rotate smoothly, with large air volume and without abnormal noise. Self-blowing blinds are flexible and can be moved. The linked louver has a flexible rotation. The two-way ventilation fan can be switched freely. The motor temperature rise is not too high and the noise is small. The ventilating fan with speed regulation function is significantly adjustable. Last, the capacitive motor of window mounted ventilation fan is not more than 65%, and the hood type is not more than 80%.