multi span film greenhouse with ventilation for grow vegetable

Intelligent greenhouse control mainly controls the temperature, humidity, ventilation, and lighting in the greenhouse based on the temperature, humidity, light, wind speed, rainfall and other climatic factors of the external environment, creating the best environment suitable for crop growth, while controlling the factors that affect the crops. Various nutrients are dynamically distributed.

The intelligent greenhouse control system has good control accuracy, good dynamic quality and good stability. It formulates detection standards for the needs of different stages of plant growth, detects the greenhouse environment, and compares the detected parameters. Make adjustments. Various indoor and outdoor sensors collect various signals and convert the information, allowing the computer to recognize and process it, and output adjustment instructions. The output control part controls the switches of the fan, spray system, and shading system, so that the growth of crops can be realized in a workshop.

In order to ensure appropriate light intensity in the greenhouse and avoid excessive solar radiation causing an increase in indoor temperature (to ensure the normal operation of the greenhouse in summer), the greenhouse is equipped with an outdoor sunshade curtain, which is arranged parallel to the roof, with a vertical distance of 0.5m from the greenhouse. , the sunshade net can prevent excess solar radiation from entering the greenhouse, which not only ensures the normal growth of crops, but also reduces energy accumulation in the greenhouse. Greenhouse ventilation and cooling technology Greenhouse ventilation and cooling technologies include natural ventilation, circulating ventilation, institutional ventilation, wet curtain/fan cooling systems, etc. Wet curtain/fan cooling system uses wet curtain cooling when the outdoor temperature exceeds 28~34℃ and the ventilation cooling effect is very limited. Start the water pump to supply water to the wet curtain. The air passes through the wet curtain to reduce the temperature. In conjunction with mechanical ventilation, it takes away the heat in the greenhouse and lowers the temperature of the greenhouse.