Best Greenhouse for Hydroponics JIANDA - - Jianda Greenhouse

hydroponic polycarbonate greenhouse of the curtain system is mainly used in the external shading and internal insulation systems of multi-span greenhouses. It uses materials with a certain shading rate to absorb excess light, or uses insulation materials to form a partial closed space inside the greenhouse to regulate light or heat preservation. effect. According to the type of driving mechanism, the curtain pulling system can be divided into rack and pinion curtain pulling mechanism, steel cable curtain pulling mechanism, etc., among which the first two mechanisms are the most common.Main uses and features: The rack and pinion curtain machine is a common drive in greenhouses. Its main transmission component is a rack and pinion mechanism. The rack and pinion mechanism is used to convert the rotational motion of the drive motor into the linear motion of the rack to achieve sun shading. The unfolding and closing of nets or insulation curtains. It is characterized by smooth and reliable transmission and high transmission accuracy. However, due to the limitations of strip length and installation, it is not suitable for occasions with a stroke greater than 5m or limited installation conditions. The A-type rack and pinion structure has one-stage reduction, so it has better stability when driven by the same motor.hydroponic polycarbonate greenhouse of the curtain system the transmission principle is that the drive shaft is connected to the reduction motor and the gear. When the reduction electric output shaft rotates, the drive shaft drives the gear to rotate. The rotation of the gear drives the rack to move. The push-pull rod is supported by the support roller and connected to the rack. When the reduction motor rotates back and forth, it can drive the push-pull rod to achieve reciprocating motion. When one end of the sunshade curtain is at the beam and column, and the other end is fixed on the driving edge profile connected to the push-pull rod, the sunshade curtain can be unfolded and retracted.

Natural ventilation of hydroponic polycarbonate greenhouse is a simple and economical ventilation method. Natural ventilation in the greenhouse is achieved through side windows, skylights or vents formed by rolling up the greenhouse covering film. The ventilation volume of natural ventilation is related to many factors, such as the indoor and outdoor temperature difference, outdoor wind speed and direction, the area, form and position of doors and windows, etc. The use of circulation fans in hydroponic polycarbonate greenhouse will speed up ventilation and make the cooling effect in the greenhouse better.

The side-opening windows of polycarbonate greenhouse are generally designed behind the water curtain. There is a drive motor and rack and pinion drive to achieve opening and closing. The windows are long strips covered with solar panels.

In order to achieve good cooling in the hydroponic polycarbonate greenhouse, fans and water curtain systems are indispensable. The water curtain adopts aluminum alloy frame to avoid rust. The height and thickness are chosen according to the local climate. The height and thickness of the water curtain determine the area of ​​the water curtain paper, and thus the cooling effect.