Good ventilation is crucial for maintaining the air quality inside the greenhouse, regulating humidity, and promoting crop growth. For outdoor greenhouse, which is often large in scale and has high planting density, effective ventilation can discharge harmful gases (such as carbon dioxide deficiency and excessive ammonia gas), reduce indoor humidity, and prevent the occurrence of diseases and pests. For custom greenhouse, which may be used for different types of crop cultivation, the ventilation system needs to be flexible and adjustable to meet the specific ventilation requirements of different crops. For mini green house, although the scale is small, poor ventilation can easily lead to high humidity and disease occurrence, so a simple and effective ventilation system is also essential. Our gear-rack window opening systems, including continuous gear-rack window opening system and staggered gear-rack window opening system, are widely used in outdoor greenhouse, custom greenhouse, and mini green house, providing stable, reliable, and efficient ventilation solutions.
The continuous gear-rack window opening system is a commonly used window opening activation form for large-scale multi-span outdoor greenhouse and custom greenhouse. This system operates stably and safely, with high reliability, and can adapt to the ventilation needs of large-area greenhouses. In this system, the reduction motor drives the gear to rotate through the drive shaft, and the gear meshes with the rack to make it move linearly back and forth. The end of the rack is connected to the support of the ventilation window, thereby realizing the opening and closing of the ventilation window. The technical parameters of the system are optimized according to the actual needs of greenhouses: it is available in straight and arc types, with L=1050m and T=2.5m, matching 1” and 5/4” drive shafts. This system can be customized according to the size and shape of the outdoor greenhouse and custom greenhouse, ensuring that each ventilation window operates synchronously and stably, achieving uniform ventilation in the entire greenhouse. For example, in a large-scale outdoor greenhouse for vegetable cultivation, the continuous gear-rack window opening system can open all ventilation windows at the same time, quickly realizing air circulation and improving the growth environment of vegetables.
The staggered gear-rack window opening system is mainly used for top ventilation and window opening of Venlo-type (VENLO) outdoor greenhouse and custom greenhouse. Due to the staggered opening of the skylights, the convection of indoor air is maximized, achieving better ventilation effect. This system is especially suitable for custom greenhouse that requires high ventilation efficiency, such as greenhouses for flower cultivation and seedling breeding. Flowers and seedlings have high requirements for air quality and humidity; the staggered opening of skylights can form cross ventilation, quickly discharge moisture and harmful gases, and maintain a dry and clean indoor environment, thus reducing the occurrence of diseases and pests and improving the quality of flowers and seedlings. In addition, the staggered gear-rack window opening system can also be adjusted according to the outdoor wind speed and indoor environmental conditions, realizing stepless adjustment of the window opening degree, which is more flexible and energy-saving.
For mini green house, we provide simplified gear-rack window opening systems or manual window opening devices, which are simple in structure, easy to operate, and low in cost, while meeting the basic ventilation needs of the mini green house. For example, a mini green house placed on a balcony can be equipped with a manual gear-rack window opening device, which allows users to open and close the window at any time according to the indoor and outdoor temperature and humidity conditions, ensuring the healthy growth of plants. Whether it is a large-scale outdoor greenhouse, a customized custom greenhouse, or a small mini green house, our window opening systems can be tailored to meet the specific ventilation needs, providing a healthy and comfortable growing environment for crops.
In addition to the gear-rack window opening systems, we also provide supporting ventilation equipment for outdoor greenhouse, custom greenhouse, and mini green house, such as axial flow fans and centrifugal fans, which can be used in conjunction with the window opening systems to further improve ventilation efficiency. For outdoor greenhouse in hot and humid regions, the combination of window opening systems and fans can achieve forced ventilation, quickly reducing indoor temperature and humidity, and ensuring the normal growth of crops. For custom greenhouse used for livestock breeding, the ventilation system can be designed to discharge harmful gases and odors in a timely manner, improving the living environment of livestock and reducing the incidence of diseases.
