Steel structure solar greenhouse vegetable greenhouse construction cost Zhengzhou Xiangrui

Zhengzhou Xiangrui Greenhouse Engineering Co., Ltd.
The technical staff of Zhengzhou Xiangrui Greenhouse Engineering Co., Ltd., which specializes in greenhouse construction, have developed the latest greenhouse structure that can withstand heavy snow based on the current fifth-generation greenhouse model in Anyang
Correctly adjust the greenhouse The ratio between the surface shape and the width of the shed and the height of the shed should not be too small when constructing the shed. The shape and angle of the shed are the main factors that affect the daily light intake and heating effect of the shed. When constructing the greenhouse, the local area must be considered. Choose a design that makes sense based on the situation. Among various shed shapes, the arc-shaped lighting effect is the most ideal.
The shed surface angle refers to the angle between the transparent surface of the greenhouse and the ground plane. The above-mentioned fifth-generation greenhouses have only one roof angle, which is much smaller than the average roof angle in greenhouse construction. Therefore, such a fifth-generation greenhouse not only appears flat, but its resistance to overwhelming is greatly reduced. And when sunlight enters the greenhouse through the shed film, part of the light energy is converted into heat energy and is absorbed by the scaffolding and the shed film. About a portion is reflected by the shed film, and the rest enters the greenhouse through the shed film. The smaller the reflectivity of the greenhouse film, the more sunlight will enter the greenhouse through the film, and the better the heating effect will be. The most ideal effect is that the sun shines vertically on the shed surface, the incident angle is zero, the reflection angle is also zero, and the intensity of the transmitted light is maximum. Simply put, in order to better combine the lighting and heating with the planting area, the ratio of shed width to shed height must be appropriate. The appropriate ratio of shed height to shed width varies in different regions.
The calculation method of shed width and shed height can be calculated using the following formula
Shed width and shed height Ideal shed surface angle
Ideal shed surface angle Sun height angle at noon on the winter solstice
Noon on the winter solstice The solar height angle at the time of the local geographical latitude and the declination at the winter solstice
2. Determine the appropriate wall thickness and do not occupy too much area in the shed
The determination of the wall thickness mainly depends on the local maximum frozen soil layer The thickness can be added based on the maximum frozen soil layer thickness. For example, in Hebei, the maximum thickness of frozen soil is meters, and the thickness of the wall can be. The thickness mentioned here refers to the minimum thickness of the back wall of the greenhouse to be built. The same applies below. The maximum frozen soil thickness in places such as Liaoning, Beijing, and Ningxia even reaches meters, and the wall thickness needs to be appropriately thickened to meters, which should reach meters. In places such as northern Jiangsu, northern Anhui, and northern Henan, the maximum frozen soil thickness is lower than that, and a wall thickness of 1 meter can meet the requirements. The back wall of the fifth-generation greenhouse is built in a triangle, and the thickness of the bottom reaches three and a half meters, which greatly takes up the area of the crops. Thin walls will indeed have poor thermal insulation, but thick walls will waste land and money for building sheds. Therefore, a trapezoidal back wall should be used on the existing basis to reduce the area occupied by the back wall in the shed.