Do you understand the advantages of using a Venlo-type glass greenhouse?
Venlo-type greenhouse is the most widely used large-span greenhouse with the fastest promotion speed in my country. It plays a very important role in realizing my country's agricultural modernization and promoting the development of rural economy. However, with the diversification of uses of Venlo-type greenhouses and the continuous popularization across the country, its potential safety hazards are also increasing. Therefore, it is imperative to verify its safety. In addition, the differentiated design of the Venlo-type greenhouse structure corresponding to different regions is also an important method to reduce its construction cost. The Venlo type greenhouse originated in the town of Venlo in the Netherlands in the 1950s and was named after it. The article was edited by Manager Zhang of Guangyuan Greenhouse. Due to its advanced structure and developed standardization degree, it is conducive to the realization of agricultural modernization in my country. It has gradually been popularized in China. Compared with the traditional double-slope greenhouse, the Venlo type One span of the greenhouse is divided into three spires. The greenhouse has the characteristics of a small roof, multiple rain gutters, a large span, and a steel structure. Internal compartments can be set up according to actual production needs. The overall skeleton of the greenhouse is made of galvanized steel and the covering material is PC hollow board or floating French glass.
The roof components of the Venlo-type greenhouse structure are made of thinner galvanized steel. On the one hand, they are used as roof load-bearing strips, and on the other hand, they are used as roof covering material fillets, so that the roof can be covered with light-transmitting panels on the largest area, while ensuring structural safety. On the premise of improving the stability and drainage performance, reducing the cross-sectional size of the water tank also improves its light transmittance: another feature of the Venlo greenhouse is less steel consumption and a larger span; it mainly benefits from the fact that the structural roof has no Purlin, its main load-bearing frame is the main column, truss and water tank, and the load transfer is simple. In addition, due to its three-peak roof design, its wind load and water load are small, which is conducive to reducing the section size of the component and increasing its span. , to further reduce the amount of steel used. At the same time, because the Venlo-type greenhouse adopts a small pointed roof structure to reduce the overall height of the structure, the wind load on the structure can be reduced without changing the column height; at the same time, compared with the traditional The double-slope roof has a larger stress-bearing area and can bear a larger snow load. At the same time, it is more conducive to draining rain and snow into the water tank on the top of the column, avoiding the accumulation of snow load on the roof and reducing the roof load. The Venlo-type greenhouse adopts the method of setting up a sunshade outside to control the light, and mainly adopts two methods of installing side exhaust fans and opening windows on the roof to exhaust the air. Therefore, its ventilation area is nearly 20% larger than that of traditional greenhouses.
In short, the Venlo-type greenhouse benefits from its advanced structural form, light-weight and high-strength material properties, which can increase the light-transmitting area of the greenhouse, reduce the wind and snow loads on the roof of the greenhouse, thereby reducing the cross-sectional size of structural components and reducing the use of steel. And the form of its exhaust fan ventilation can also increase its ventilation area by nearly 20%. In addition, the production of Venlo-type greenhouses has a high degree of standardization, and is constantly developing in the direction of intelligence. species, and the cultivation of other special crops such as flowers and saplings. In addition, the large-span Venlo-type greenhouse can also be used as the main structure for fruit and vegetable plant exhibitions, flower, bird, fish and insect markets, and agricultural tourism culture.
