Ventilation system

Characteristics of Greenhouse Ventilation Systems:

1. Staggered windowing design is used for the top-vent so as to strengthen convection effect of the air. Opening angle can reach 30°. Apply different opening according to climate difference inside and outside. Ventilated area can take up more than 20% of top surface area of greenhouse.

2. Overall mechanical transmission mode is used for side-vent. It is matched with the top-vent for cooling. Use evasion type or push-pull type side window.

3. The unique window opening outer fly net design can prevent the insect and sundries entering greenhouse and reduce infection on greenhouse crop. Gear and rack transmission mode and electric control are used for the top-vent or side window

Specification of ventilation system

Greenhouse ventilation system can be divided into two kinds of ventilation systems. One is continuous ventilation system. The other is interlacing ventilation system. Both of these two kinds of ventilation systems are now widely used in agricultural planting, sightseeing and entertainment and other fields.

Continuous Ventilation System:

Greenhouse continuous ventilation system is mainly composed by gear motors, driving shaft, continuous ventilation rack and pinion, and bearing plate. The gear motor in this system drives rack rotating through driving shaft. Continuous rack and pinion work together to realize the opening and closing of the whole window. 

Interlacing Ventilation System:

Interlacing ventilation system is made of gear motors, driving shaft, interlacing ventilation pinion and rack, bearing plate, ventilation supporting wheel, push rod, push rod joint and other necessary parts. This kind of ventilation system is applied in top window ventilation of Venlo type greenhouse. Because of the interlacing opening of top window, the outside air and the inside air exchanges quickly, which assures the greenhouse always filled with fresh air.