Product details of the venlo greenhouse design
Product Overview
The application of advanced equipment gives Jianda Greenhouse venlo greenhouse design a fine finished. Basic quality and safety evaluation is performed at every production stage. The product produced under these circumstances meets the strictest quality criteria. The venlo greenhouse design developed by JIANDA is widely used in various fields. This product has great demands in the market and is widely praised.
Product Description
Under the premise of ensuring the same price, the venlo greenhouse design that we develop and produce as a whole has been substantially improved in a scientific way, as shown in the following aspects.
Venlo shaped roof design with glass covering the top and sides. In some areas, roofs are covered with solar panels.This venlo greenhouse has the longest service life. The skeleton is used for more than 20 years. Glass can be used for a long time without external force damage
1. Venlo greenhouse covering glass,which have features.
In addition to bearing its own weight, greenhouse glass mainly bears wind load as a greenhouse enclosure structure. In addition to bearing wind load, the glass installed on the roof slope also bears snow load and other falling object loads. If it is installed on the roof, it also needs to bear maintenance load. In addition, in modern buildings, glass coverings generally need to consider their ability to withstand thermal stress and resist man-made impact damage. The expansion of architectural glass caused by the heating of the glass cannot occur freely due to external constraints, or due to the different lighting conditions within the glass plate, or due to the different heat dissipation conditions within the glass plate, causing thermal stress inside the glass. When the heat Thermal cracking occurs when stress build-up exceeds the tensile strength of the glass edge. Thermal cracking is a multi-factor problem that is complexly affected by the properties, quality and external conditions of the glass itself. In greenhouse production buildings, flat glass is usually used, and heat-absorbing glass is basically not used. On the basis of ensuring that the quality of the selected glass meets relevant product standards and that the installation and fixation of the glass conforms to standard procedures, the glass covering on the greenhouse can basically be ignored. Thermal stress damage.Regarding man-made impact damage, due to the special functions of greenhouses, most of them are not places with a large flow of people. The cost of using laminated safety glass is too high and it is unrealistic to use it on a large scale. It can only be used locally in greenhouses with a large flow of people. It is best to adopt other measures (such as strengthening management, installing protective railings or flower pots and other decorations, posting eye-catching signs, keeping a certain distance between the bottom edge of the glass and the ground, etc.) to avoid the occurrence of human injury accidents caused by glass breakage. The roofs of large-scale multi-span
glass greenhouses constructed in recent years are almost all made of tempered glass.
2. Venlo greenhouse glass installation
The installation structure of glass is divided into two types: frame installation structure and frameless installation structure. A framed installation structure means that the glass is supported by a frame around the perimeter, and all glass edges are required to be surrounded and closed by frame notches or grooves, and the frame has sufficient load-bearing strength and stiffness; if this requirement is not met, it is considered a frameless installation. structure. Greenhouses basically use frame-mounted structures, but in recent years, glass greenhouse roof windows designed by foreign greenhouse companies have appeared in frameless installation structures. Glass framed mounting structures consist of mounting notches or grooves on the frame and the glass mounting material. 1. Principles of glass installation: Special aluminum alloy profiles are generally used in greenhouses to fix the glass on the greenhouse frame. After glass is installed, it will inevitably be affected by wind load, rain and snow load, earthquake action or other effective loads. Due to the unique strength characteristics of glass, when the stress exceeds its elastic limit, it is different from polycarbonate plates, films and other materials that have plastic deformation. ability, but breaks immediately. In order to ensure the safety, reliability and durability of the entire installation structure, the following principles should be followed during installation. (1) The plate surface and thickness dimensions of the glass should be determined according to the effective load strength of the glass. The maximum bending deformation deflection of the glass under load should not be greater than 1/70 of the span. (2) The frame that fixes the glass should have sufficient strength to prevent the glass from breaking due to frame deformation. Frame deformations are generally designed to be no more than 1/180 of the span. (3) There should be a suitable gap between the glass periphery and the frame, and the area should be filled with elastic material to avoid installation stress.
3. VENLO greenhouses are generally designed with a sunshade system. Internal shading systems are the most common model. This system consists of a sunshade screen and a drive system.
Relying on motor drive to open and close the sunshade curtain. The shading rate of the sunshade curtain ranges from 30%, 50%, 75%, and 90%, matching different climate conditions.
Venlo greenhouse are used to grow green leaf crops.Leafy vegetables such as lettuce and celery are grown in a hydroponic system in a glass greenhouse. Flat planting method. Lay the hydroponic tank flat on the metal frame. The growing cups and planting cotton are placed in the hydroponic trough. This planting method provides sufficient sunlight to meet the rapid growth of leafy vegetables.
Venlo greenhouse to grow lettuce in NFT system. This system named A-frame planting model, this type of planting is also a type of hydroponics. It arranges hydroponic tubes on an A-shaped steel support frame, so it is named the A-frame planting mode. It makes better use of planting space and achieves better yields.
Vertical planting mode in the VENLO GREENHOUSE, this type of planting is also a type of hydroponics. It arranges hydroponic tubes on vertical supports. It makes better use of planting space and achieves better yields.
Company Advantages
As a modern company, WEIFANG JIANDA GREENHOUSE MATERIAL CO.,LTD is professionally engaged in the production, processing and sales of film greenhouse,polycarbonate greenhouse,glass greenhouse. Since its establishment, our company has been adhering to the corporate tenet of 'integrity and responsibility', and taking 'proving high-quality products and serving the society' as the development direction. We are dedicated to becoming a respected company. Our company thinks highly of talents construction. At present, we have a group of employees with high quality. Their strict working style and dedication are the effective guarantee for the long-term development. With a focus on film greenhouse,polycarbonate greenhouse,glass greenhouse, JIANDA is dedicated to providing reasonable solutions for customers.
Sincerely welcome customers who have needs to contact us for negotiation. I hope we can work together to create a brilliant future.
