Precautions for the construction of intelligent glass greenhouse
When most users use the smart glass greenhouse for the first time, they don't understand the matters needing attention in the construction of the smart glass greenhouse, and many people tend to ignore some details, but we often ignore these aspects, which directly affect the yield of our crops and our economic benefits. Therefore, we should understand some necessary matters in the construction of intelligent glass greenhouse.
Efficient planting intelligent glass greenhouse can carry out crop seedling raising and production in a more stable climate environment. The probability of environmental instability in some areas increases, and some areas that are not suitable for planting also need fresh vegetables and other agricultural and sideline products, so it is necessary to have an efficient, low-carbon and energy-saving intelligent glass greenhouse greenhouse building to meet the planting demand. So the design and construction of efficient planting greenhouse need attention.
The construction of intelligent glass greenhouse needs to consider its durability, which is affected by the aging resistance of greenhouse materials. The bearing capacity of the main structure of the greenhouse and other factors affect the durability of the light transmitting material. In addition to its own strength, the light transmittance of the material also shows the continuous attenuation with the extension of time, and the attenuation degree of the light transmittance is the decisive factor affecting the service life of the light transmitting material. Because the greenhouse operates under the environment of high temperature and high humidity for a long time, The corrosion protection of the construction surface is one of the most important factors affecting the service life of the greenhouse.
The popularity of high-efficiency planting glass greenhouse in developed countries such as the Netherlands, Europe and the United States is very high, which has a great relationship with its ultra-high planting technology, product quality and product price. The whole set of system equipment of glass greenhouse is a large investment in the early stage. Although the standardized greenhouse will be used for more than 20 years, it still discourages many investors. Moreover, as a model of efficient planting, it plays an exemplary role. At present, there are many such projects in the country. However, there is no lack of the development and production needs of some large agricultural companies and groups in the agricultural field. Only by choosing the right starting point can we proceed to the next stage of design discussion and construction.
Select appropriate greenhouse system materials according to local conditions. The planting greenhouse is composed of various systems and materials. The standard high-efficiency planting greenhouse system includes external shading system, internal shading and thermal insulation system, top natural ventilation system, wall natural ventilation system, fan water curtain forced suction cooling system, high waist zero spraying cooling system, heating system, internal climate circulation system, plant root climate circulation system, carbon dioxide generation and supplement system, planting and cultivation tank system Integrated water and fertilizer system, etc. It is worth noting that the appropriate cooling system should be selected in summer to reduce the use of energy consumption and make the planting climate the most stable and the least volatile. In winter, appropriate heating energy shall be selected according to local resources.
Attention should also be paid to the thermal insulation performance of intelligent glass greenhouse. Improving the thermal insulation performance of greenhouse and reducing energy consumption are the most direct means to improve the production efficiency of greenhouse. The thermal insulation ratio of greenhouse is an important index to measure the thermal insulation performance of greenhouse, Greenhouse insulation ratio refers to the ratio of the sum of the coverage area of transparent materials with small thermal resistance and the coverage area of greenhouse maintenance structure with large thermal resistance. The larger the insulation ratio, the better the insulation performance of greenhouse.
Application of new materials in greenhouse the covering materials of traditional intelligent glass greenhouse are film, sunlight plate and ordinary glass; Now we can choose super white diffuse reflective glass as the covering material on the top of the greenhouse. The transmittance of this kind of glass is about 7.5% higher than that of traditional glass, and the corresponding output will increase in the same proportion. Intelligent glass greenhouse is a daylighting building, so it must have good light transmission conditions when building intelligent glass greenhouse. Light transmission rate is the most basic index to evaluate the light transmission performance of greenhouse. Light transmission rate refers to the percentage of indoor light and outdoor light. The light transmission rate of greenhouse is affected by the light transmission performance of greenhouse light transmission covering materials and the shadow rate of greenhouse stock price, Later, with the different solar radiation angles in different seasons, the light transmittance of the greenhouse is also changing at any time, so the light transmittance has become a direct factor affecting crop growth and plant species selection.