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The choice principle of cooling wet curtain

2019-04-18  From: Qingzhou Fuhua Agricultural and Animal Husbandry Machinery Equipment Co., Ltd. Browsing times:473

The selection principle of wet curtain size is to make the wet curtain system achieve good results. What what produce greenhouse to often use in flowers normally is 10 centimeters thick or 15 centimeters thick fibrous qualitative wet curtain. 10 centimeters thick fibrous qualitative wet curtain, the air velocity that passes through wet curtain is 76 meters/minute when run the effect is good. A 15-centimeter-thick paper curtain requires an air speed of 122 meters per minute.

Should choose what kind of ply wet shade, besides the geographical position that considers seat, climate condition, still should see the distance of the wet shade inside greenhouse and blower and flower crop are sensitive to temperature degree. If fan and the distance of wet curtain are bigger (exceed 32 meters above commonly), the proposal USES the wet curtain with 15 centimeters thick; If the cultivated flowers are more sensitive to greenhouse temperature and have poor tolerance to high temperature, it is recommended to use a 15cm thick wet curtain. Conversely, if the distance between the wet shade inside greenhouse and fan is lesser or flowers is sensitive to temperature degree low, can use 10 centimeters thick wet shade.

Consider from economic Angle, the wet shade price of 10 centimeters thick should be below the wet shade of 15 centimeters ply, it is the 2/3 of its price only.

In addition, the size of the wet curtain inlet is the larger the better. Because the size of the air inlet is too small will increase the static pressure, thus greatly reducing the fan efficiency, increase the power consumption.

Keywords: cooling wet curtain           

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