Glass greenhouse means a greenhouse with laminated glass as the raw material for light. It belongs to a kind of greenhouse greenhouse. In the planting equipment, the glass greenhouse is a method with a longer service life, which is suitable for a variety of regions and various types. When applied under climatic conditions, the factors considered are:
1. Ventilation of glass greenhouses. The purpose of glass greenhouse ventilation is to better remove the waste heat recovery of the greenhouse and the water in the greenhouse, adjust the composition of the air in the greenhouse, remove harmful substances, and make the working temperature and environmental humidity in the glass greenhouse. And gas standards are suitable for the growth of plants. Most of the time, the glass greenhouse uses natural ventilation to adjust the indoor air. The structure of large and medium-scale glass greenhouses is generally a double-slope multi-span greenhouse, and the ventilation method is to set ventilation windows at the axillary corners and ridges. When the average temperature of the glass greenhouse is high in summer, it is a common way to choose mandatory ventilation and cooperate with other countermeasures to carry out cooling.
2. Heating of glass greenhouses, glass greenhouses in North China must be heated in winter, otherwise they cannot be manufactured in winter. Including: boiling water heating, warm air heating, electric heating. Electric heating is a clean and convenient electric energy source, but electromagnetic energy is a secondary energy source, which is relatively expensive, so it can only be used as a temporary heating countermeasure in the short term.
3. Greenhouse environmental protection and energy saving, the key to the heat evaporation of the glass greenhouse is based on the following methods: according to the laminated glass bent structure to transmit heat to the sky radiant source; ventilate heat; exhaust heat in the air; heat conduction in the ground.
4. Glass greenhouse cooling, the key to greenhouse cooling methods used in production and manufacturing are: shading and cooling, using opaque or low-transmittance raw materials to shading and reducing light. Volatilization to cool down, using the unsaturated fatty properties of gas and the heat of vaporization of water to cool down. The roof sprinkler cooling system software sprinkles water evenly on the flat roof of the glass greenhouse to reduce the temperature of the greenhouse.
The glass greenhouse has a long service life and is suitable for a variety of regions and climates. It is divided into various greenhouses by planting different green plants.
