Proper temperature and humidity are needed for plant growth. Accordingly, the greenhouse needs ventilation system to regulate and control the temperature and humidity in the room, so as to provide suitable growth environment for plants. Generally, greenhouse ventilation system can be divided into natural ventilation and forced ventilation. The so-called natural ventilation refers to the use of the greenhouse surface temperature difference or wind pressure of the open greenhouse or the side window of the skylight to complete the air convection on the greenhouse surface and reduce the temperature and humidity of the greenhouse. The so-called forced ventilation is to force the air convection in the greenhouse by starting fans and so on, so as to adjust the temperature and humidity in the greenhouse. The two ventilation modes have their own characteristics and are suitable for different scenes.

　　為了完成自然通風，人們可以在溫室的側壁或屋頂上安裝窗戶。 通常，溫室的側窗有利于增加溫室周圍的通風，但是開放區域有限。 溫室天窗的開闊面積更大，并且熱風不斷上升，因此溫室天窗可以更有效地增加整個溫室的通風量，有利于促進整個溫室的均勻降溫。

　　In order to achieve natural ventilation, people can install windows on the side wall or roof of the greenhouse. Generally, the side window of greenhouse is beneficial to increase the ventilation around the greenhouse, but the open area is limited. The open area of greenhouse skylight is larger, and the hot wind is rising, so the skylight can increase the ventilation of the whole greenhouse more effectively, which is conducive to promoting the uniform cooling of the whole greenhouse.

　　隨著單個溫室面積的不斷擴大，就改善溫室通風而言，天窗比側窗要好得多。 借助開窗系統，可以根據需要打開或關閉溫室的側窗和天窗。 溫室的側窗通常是連接窗。 如果溫室覆蓋相對堅硬的材料，例如玻璃和PC板，則由連續的齒條齒輪系統驅動。 如果是軟質材料（例如薄膜），則可以選擇卷卷窗系統。 另一種選擇是使用可充氣的窗戶，該窗戶可對氣囊充氣或放氣以完成窗戶的關閉和打開。 可以計劃將溫室天窗沿著溫室的屋頂間歇地打開和打開。 如果連接到天窗，則由連續的齒條齒輪系統驅動，每個天窗都使用連續的齒條齒輪系統。 多個連續的天窗也可以與分開的齒條和小齒輪系統一起打開和關閉，也就是說，車窗軸上的扭矩分配器連接到蝸輪減速器的輸入軸上，而蝸輪減速器則驅動天窗。  。 當天窗數據是膠片時，您也可以使用膠片打開窗口系統； 如果是破損的天窗，則可以選擇桁架式齒輪系統，搖擺式齒輪系統和立柱固定式齒輪系統中的一種。 驅動系統。 同時，桁架齒條系統是常見的，擺動齒條系統很少使用，立柱固定齒條系統僅將桁架齒條系統中的驅動軸和齒輪移下側 遮擋系統遮擋了入射光，這是開窗系統的發展趨勢。

　　With the continuous expansion of the area of a single greenhouse, the skylight is much better than the side window in terms of improving greenhouse ventilation. With the window opening system, the side windows and skylights of the greenhouse can be opened or closed as required. The side window of a greenhouse is usually a connecting window. If the greenhouse is covered with relatively hard materials, such as glass and PC board, it is driven by a continuous rack and pinion system. If it is a soft material (such as film), you can choose the rolling window system. Another option is to use an inflatable window that inflates or deflates the air bag to close and open the window. You can plan to open and open the greenhouse skylight intermittently along the roof of the greenhouse. If connected to a sunroof, it is driven by a continuous rack and pinion system, which is used for each sunroof. Multiple continuous skylights can also be opened and closed together with separate rack and pinion systems, that is, the torque distributor on the window shaft is connected to the input shaft of the worm gear reducer, which drives the skylight. When the skylight data is film, you can also use film to open the window system; if the skylight is damaged, you can choose one of truss gear system, swing gear system and column fixed gear system. Drive system. At the same time, the truss rack system is the most common, the swing rack system is rarely used, the column fixed rack system only moves the drive shaft and gear in the truss rack system to the lower side to block the incident light, which is the development trend of the window system.

　　溫室強制通風系統通常使用低壓大流量軸流風扇或循環風扇。 低壓大流量軸流風扇主要用于將空氣吹入溫室，并且可以在溫室外通風。 溫室外的通風可以避免氣流對溫室中植物的傷害，通過溫室中的縫隙可以補償溫室中的室外空氣，有利于在溫室中形成均勻適度的氣流場。 應用范圍更廣。  。 循環電流風機是小流量軸流風機，用于促進溫室中的空氣活動，有利于溫室中溫度和濕度的均勻化，并促進植物葉片水分的蒸騰作用。 當溫室規模超過低壓大流量軸流風機的有效工作距離時，可以將循環風機用作繼電風扇，以確保強制通風的效果。

　　The forced ventilation system of greenhouse usually uses low pressure and large flow axial fan or circulation fan. Low pressure and large flow axial fan is mainly used to blow air into the greenhouse, and can ventilate outside the greenhouse. The ventilation outside the greenhouse can avoid the damage of air flow to the plants in the greenhouse. Through the gap in the greenhouse, the outdoor air in the greenhouse can be compensated, which is conducive to the formation of a uniform and moderate air flow field in the greenhouse. It has a wider range of applications. The circulating current fan is a small flow axial flow fan, which is used to promote the air activity in the greenhouse, to facilitate the homogenization of temperature and humidity in the greenhouse, and to promote the transpiration of plant leaf water. When the scale of greenhouse exceeds the effective working distance of low pressure and large flow axial-flow fan, the circulating fan can be used as relay fan to ensure the effect of forced ventilation.