The solar greenhouse is equipped with a ventilation and cooling system, an internal and external shading system, a light supplement system, a heating system, an irrigation system, an automation control system, and other greenhouse main materials. Hot-dip galvanized steel frame is a low-cost, durable vegetable greenhouse with a width of meters*meters. The service life of a solar panel greenhouse can reach ten years, but it is difficult for a glass greenhouse to reach such a long time. Good thermal insulation performance Sun panels have strong thermal insulation performance, which is slightly inferior to glass.
Light weight and easy to use. The light weight of the solar panel makes it more convenient to install. It also comes with professional seals and windproof caps during installation to ensure it does not leak. Affordable price Many people know that glass is very expensive. I remember that a small piece of broken glass in school cost more than 100 yuan. The price of solar panels is very cheap compared with glass. It can really be called “high quality and low price”. The light transmittance is strong and the anti-yellowing solar panels are widely used in greenhouses. The more important reason is that the light transmittance of the solar panels is as high as more than 80%.
In snowy weather, non-heated greenhouses need to use temporary heating equipment, such as hot fans, hot air stoves, etc., or take any other measures that can provide heating and increase the temperature in the greenhouse; greenhouses can increase heating in snowy weather and open them when necessary. The thermal insulation curtain can quickly increase the temperature of the greenhouse and speed up the melting of snow. 1. Raindrop-proof insulation film for vegetable greenhouses. This new type of film is made of polyvinyl acetate (EVA) and other resins. It has the advantages of high light transmittance, good thermal insulation, long service life and long film-free time. Generally Winter night temperature is higher than polyethylene
The temperature of the film is 0.5℃, the service life is up to 1 year, and the film does not fall off for 2-3 months. This film is about 10% higher than ordinary drip-free insulation film. The solar greenhouse is mainly composed of three parts: the rear roof of the surrounding wall and the front roof, referred to as the “three elements” of the solar greenhouse. The front roof is the entire lighting surface of the greenhouse. During the daytime lighting period, the front roof is only covered with plastic film for lighting. When outdoor When the light is weakened, cover it with plastic film in a timely manner to enhance the insulation of the greenhouse. Due to the development of the plastic industry and the fact that glass is easily damaged, most rural solar greenhouses use plastic film as the roofing material.
In particular, the plastic solar greenhouses that have emerged in northern China based on soil greenhouses have obvious characteristics of high efficiency, energy saving and low cost. They are very popular among vegetable farmers and consumers. They are one of the effective methods to develop high-yield, high-quality and effective agriculture. will be developed faster. Practice has proven that when the outdoor temperature is not lower than -℃, satisfactory results can be achieved when the special solar greenhouse structural properties of plastic solar greenhouses can maintain indoor temperatures above ℃. For farmers, many people still don’t know much about how to build a greenhouse.
