In hot weather, it is crucial to achieve ventilation and cooling of the greenhouse to ensure the comfort of the plant growing environment. The following are some greenhouse ventilation and cooling methods to help the greenhouse effectively ventilate and cool down in hot weather: Greenhouse ventilation and cooling 1, set up vents at high positions: Set vents at the high positions of the greenhouses to let the hot air rise naturally and discharge. This ensures that the room is ventilated more thoroughly and the temperature is effectively reduced.
2. Spray cooling system: Install a spray cooling system to spray water into the greenhouse through a micro nozzle. When the water evaporates, it absorbs heat and achieves a cooling effect. The setting of the spray system should be adjusted according to the plant's ability to tolerate water evaporation and humidity requirements.
3. Ventilation and cooling at night: Use the low temperature at night to ventilate and quickly remove the heat accumulated during the day. By ventilating at night, it helps to reduce the indoor temperature and provide a cooler environment for plants to grow.
4. Use a shade net: Install a shade net above the greenhouse to slow down the direct sunlight and reduce the indoor temperature. Choose the appropriate shade netting material and density to meet the plant's light needs.
5. Wet curtain cooling system: Equipped with wet curtain cooling system, the wet curtain absorbs heat through water evaporation, effectively reducing the indoor temperature. Wet curtain systems can be used in combination with ventilation systems to improve ventilation effectiveness.
6. Cooling wall: Set up a cooling wall on one or both sides of the greenhouse, spray water through the wall, make the water flow down the wall, take away the heat through evaporation, and reduce the indoor temperature.
7. Automatic intelligent control: Use greenhouse meteorological sensors and automatic control systems to intelligently adjust the operation of ventilation, spray and other equipment according to real-time meteorological conditions to improve the overall cooling effect.
These methods can be used comprehensively according to the actual situation, and can be reasonably adjusted according to the structure of the greenhouse, the needs of plants and the local meteorological conditions. It is important not only to focus on the cooling effect, but also to ensure that the plants get plenty of fresh air and proper humidity during the ventilation process.