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Greenhouse ventilation and cooling system equipment installation requirements of the fan
1, the fan should be installed in the greenhouse under the wind on the side wall or gable, if the fan must be installed on the wind side, the design of the total flow of ventilation at least 10 to write.
2, the fan exhaust and adjacent obstacles (such as building walls) should be greater than the distance between the fan wheel diameter of 1.5 times.
3, the design of the number of fans for more than one, it is recommended that all the fans at regular intervals divided into two groups or three groups, in order to control the ventilation and cooling equipment at the same time the number of fans running, according to actual needs, adjust the ventilation flow and keep the greenhouse Air flow is generally uniform.
4, the fan should be outside the blinds, to prevent downtime when the air back or pests and dirt intrusion. Fan inside the application of protective cover, to prevent the body and debris contact with moving parts. If the distance between the protective cover net and the moving parts is within 100 mm, the diameter of the wire used in the ventilation and cooling equipment shall not be less than 1.50, mm and the hole shall not be greater than 13 mm; if the protective net is to the moving parts Distance of more than 100, mm, can use the diameter of 2.7, mm steel wire mesh, aperture size up to 50, mm.
5, the design of the number of fans G3, it is recommended that one or more than two-speed motor drive, in order to more flexible and flexible ventilation control.