Foundation: The foundation of the glass greenhouse is generally a strip foundation on the surroundings and a point foundation on the inside. The surrounding and internal digging depth is generally 800-1200mm, and the width is generally 800-1200mm. The bottom is tamped with plain soil, and the top is tamped with notoginseng lime soil, and a concrete cushion is placed on top. Above the cushion, the surrounding strip foundation is a brick foundation, and the internal point foundation is a concrete foundation. Multi-span glass greenhouses are generally surrounded by brick walls with a height of 500-1000mm, which play the role of heat preservation, moisture-proof and beautiful appearance (after exterior decoration treatment). The column foundation is a reinforced concrete structure, with steel bars of grade I, and the concrete grade is above C20.
For the foundation, a cheaper but better solution is a plastic barrier on level ground, which consists of three to four inches of gravel or crushed stone. Gravel and rocks are easy to install, have good drainage, and retain water. The water will evaporate during the day, thereby increasing the cooling effect inside the greenhouse. With this type of foundation, you will have to install a base frame and connect the greenhouse ledge to the base frame. Usually, this means digging a trench around the perimeter, filling it with a layer of gravel for drainage, and placing a foundation on top of the gravel.
Glass greenhouse: The lighting greenhouse generally adopts hot-dip galvanized light steel structure, which is by far the strongest and longest life frame, but it is also the most expensive. It can be used for 15-20 years. When choosing a greenhouse frame for a glass greenhouse, in addition to cost, your main consideration is location. If it snows heavily, the frame must be able to support heavy objects. If you encounter strong winds, you need a heavier and stronger frame. Wind load and snow load carrying capacity is large; it can withstand severe convective weather such as hail, strong earthquake, and strong typhoon, and minimize the impact of natural disasters on the growth of crops. If the climate is humid, stay away from more sensitive wood. The load-bearing capacity mainly depends on the space between the column beams or hoops. The closer they are, the stronger the frame.
Glass greenhouse outdoor sunshading: refers to the installation of sunshade nets on the top cover material of the greenhouse. The modern intelligent greenhouse has an external sunshade system that matches the main body of the greenhouse. The external shading system can well block the light outside the greenhouse and play a role in shading and cooling. It is also possible to control the external shading according to specific needs and adjust the amount of sunlight entering the greenhouse to achieve the purpose of controlling the light and temperature. The use of strong external shading can also achieve the effect of preventing hail.
Shading system in glass greenhouse: Open and close the shading system through gears, racks or cables. In summer, when the sunshade screen is closed during the day, the temperature inside the greenhouse can be effectively reduced. In winter, when the sunshade screen is closed at night, it can effectively prevent the internal heat of the greenhouse from overflowing through the form of radiation or heat exchange, thereby reducing the operating energy of the greenhouse.
Glass greenhouse aluminum profiles are durable, weather-resistant and will not rust. Most greenhouse kits have aluminum frames. Aluminum is strong, but expensive.
Polycarbonate is a relatively new material, also known as PC solar panels. PC solar panels provide many advantages for greenhouse glass. It is strong and has good insulation properties; it can scatter light and has fire resistance. It is also one of the glass materials with the longest lifespan. The manufacturer's warranty routine is 10 years.
The working principle of top-opening glass greenhouse top-opening windows, the motor drives the reducer, and the reducer is equipped with a transmission shaft. The rack and pinion at the other end of the transmission shaft pushes the connecting rod lever to move horizontally to open or close the window.
The glass greenhouse ventilation system uses a wet curtain-fan forced cooling system to become the most used ventilation cooling system. This system is combined with a special axial fan for the greenhouse and a wet curtain, which provides fast ventilation and rapid cooling. After the test, the wet curtain-fan forced cooling system has become a cost-effective ventilation cooling solution with good cooling effect and low cost.
Glass greenhouse supplement light is also called plant supplement light. It is a kind of lamp that uses light instead of sunlight to provide the light source for the growth and development of greenhouse plants in accordance with the natural law of plant growth and the principle of photosynthesis by plants using sunlight. .
The term for the tidal seedbed of the glass greenhouse seedbed system is the tidal irrigation system. The tidal irrigation system originated from the Netherlands, where facility cultivation is developed. Fertilize. Tidal irrigation is particularly suitable for the nutrient solution cultivation of potted flowers and container seedlings.
The glass greenhouse fertilization irrigation system mainly extracts the irrigation water from the water source, and after appropriate pressure, purification, filtration, etc., it is sent to the field irrigation equipment through the water pipeline, and finally the irrigation device in the greenhouse field irrigation equipment is used to irrigate the crops. . A complete greenhouse irrigation system usually includes five parts: water source engineering, first hub, water supply pipe network, field irrigation equipment, and automatic control equipment. In actual production, due to different water supply conditions and irrigation requirements, the greenhouse irrigation system may only consist of some equipment. . Irrigation systems used in greenhouses are classified according to the types of irrigation devices they use. They are mainly divided into pipe irrigation systems, drip irrigation systems, micro-sprinkler irrigation systems, micro-sprinklers and micro-irrigation systems, infiltration irrigation systems, and walking sprinkler irrigation systems.
The glass greenhouse heating system selects appropriate heating equipment to meet the greenhouse heating load requirements. It is generally composed of heat source, indoor heat dissipation equipment and heat transfer system. Related equipment includes boilers, pipelines, circulating water, radiators, and various control and regulating valves.
