"Bird's Nest" greenhouse construction technology

"Bird's Nest" greenhouse technology is a new kind of greenhouse technology. Its structure is novel and unique. It is a kind of innovative greenhouse with sightseeing and practical production.

First, the cooling and cooling technology "Bird's Nest" greenhouse has a strong heat accumulation, in the summer production must do a good job of ventilation and cooling work, in the past, the old version of the "bird's nest" design mostly uses the top micro-spray and central water heat buffer high temperature method To solve, although there is a good cooling effect, but the spray cooling will lead to an increase in the humidity of the greenhouse air, for the growth of many melons and fruits, will promote the breeding of diseases. The new design simulates the principle of industrial cooling towers, uses groundwater for wet curtain evaporation and cooling, and achieves internal and external heat exchange in greenhouses without increasing humidity. The technical process is to construct a platform with a ceiling at a distance of 3 to 5 meters from the ground and lay a wet curtain on the platform. A spray pipe is then installed above the wet curtain or on the top of the greenhouse to shower the groundwater directly to evaporation. Wet curtains are used to increase the evaporation surface area of ​​water, resulting in better vaporization and cooling effects. The water falling from the wet curtain is collected in aquaculture ponds, which can be recycled and can also be used to exchange the heat inside the greenhouse to the outside of the greenhouse. In the process, the evaporation of water vaporizes heat from the top of the greenhouse, while the cooled air sinks to the tillage layer, creating natural convection. Cooling in this way can achieve the effect of cooling without ventilating, and it can realize the natural exchange and convection of hot and cold air without using a fan. It is a simplified cooling tower technology and has the advantages of good investment and low cost. It is a unique cooling design for the "Bird's Nest" greenhouse. It is characterized by the combination of cooling tower technology in the summer, under the condition that the bottom of the greenhouse is not ventilated, it can also realize the heat exchange in the greenhouse, achieve the ideal cooling effect, and provide technical support for the greenhouse cultivation.

Second, the modularized cultivation tower technology Aerosol cultivation of tower-shaped frame cultivation, in the past are used welded steel frame or temporary custom wood frame as a support frame, welding frame is labor-intensive and cumbersome, wooden bracket, the service life is not Long, it is easy to rot in a moist nutrient solution environment, and the modular design method of mining pipe has the advantages of convenient loading and unloading, smart combination of movement and prolonged service life, and steelized modularized tower frame has good loading capacity and foam. After the buckles are buckled and deformed little, a more clean production environment is created for the tower-shaped fog cultivation.

Third, the pizza partition ring layout using pizza partition and ring layout, not only is conducive to the operation and management of staff, while making the use of land to maximize the utilization of the aisle footprint is minimal, corner waste is minimal. It is a kind of arrangement that conforms to the principle of intensive gardening design. Circular arcs communicate with each other to form a cluster-type cultivation unit, which optimizes the utilization of light and the efficiency of light. Each group of arrays is in the “bird's nest”. "The same light intensity and illumination time in the greenhouse are the same, which is more conducive to the uniformity, consistency and harvestability of crop production.

4. Rainwater collection The use of the "Bird's Nest" greenhouse to design a ring-shaped gutter for one week of the greenhouse is conducive to drainage and reuse of rainwater. It is a water-saving and sustainable cycle design method, with annual rainfall in the southern region. Calculated with an average of 1,000 millimeters, 1,000 square meters of "Bird's Nest" greenhouses can collect 1,000 tons of rainwater, which can basically meet the production needs of 50 tons of vegetables in the "Bird's Nest" greenhouse. Collecting rainwater and then treating it with a sand bed in an artificial wet area to obtain clean and usable recycled water is a future sustainable rainwater use strategy. The treated rainwater can basically meet the water quality indicators of fog cultivation. For areas where the freshwater resources are lacking or the groundwater hardness is too high, the collection and utilization of rainwater is a most practical and low-cost technical solution.

Fifth, the pillar design The design of the pillar of the "Bird's Nest" greenhouse center area is a multi-purpose and innovative design. In addition to improving the snow resistance at the top of the "Bird's Nest" greenhouse, it is also a ladder for managers to climb and maintain. Water can be built around the bottom edge of the brace, which can be heat-retained in winter and can be buffered in summer. Combined with the wet curtain cooling design in the middle part of the brace, the heat convection exchange in the greenhouse can be cooled more efficiently. The pillar is the core design of the "Bird's Nest" greenhouse climate regulation, and plays an extremely important role in the ecological conservation of the "Bird's Nest" greenhouse.

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