How to ventilate and heat modern glass greenhouse?
Glass greenhouse is the most scientific and technological feature in the modern greenhouse industry, especially in terms of atmospheric appearance and high grade. The design life of agricultural glass greenhouse is mostly about 20 years, and the actual service life must be more than 20 years. The configuration of intelligent agricultural glass greenhouse is also quite perfect, with high-quality supporting systems such as automatic external shading system, automatic internal shading system, fan wet curtain cooling system and automatic window opening system, so as to have a good planting environment.
As the best greenhouse in the greenhouse industry, the multi span agricultural glass greenhouse must have a ventilation and cooling system. There is no problem. First of all, what are the ventilation and cooling equipment of the greenhouse? There are electric windows on the top of the glass greenhouse for ventilation and heat dissipation. The windows are opened or closed electrically. You only need to turn on the switch. There are still powerful ventilation and cooling equipment, and the most popular equipment in the greenhouse industry is not the supporting application of fans and wet curtains. Their installation methods are installed on the opposite facade, generally with fans in the East and wet curtains in the West. In the operation of the system, the two are basically opened at the same time. The operation of the fan makes the glass greenhouse form a negative pressure, and the wet curtain is breathable. In the negative pressure environment, the external air will flow into the glass greenhouse with the air in the middle of the wet curtain. In the process of passing through the wet curtain, the air will play a role in cooling. The fan wet curtain cooling system can reduce the indoor temperature to about 5 degrees in about an hour. Generally, it can ensure that the temperature in the greenhouse is about 28 degrees, which is very suitable for crop growth.
The construction place of multi span agricultural glass greenhouse is basically in cold areas. The main purpose of greenhouse is to solve the problem of people eating fresh vegetables in cold winter. For the heating mode of glass greenhouse, the common water heating mode is still adopted. Simply speaking, it is the same as the principle of family heating in cold areas. Heat the water to the temperature required for heating, and then circulate it through hot water to the heat dissipation end, which is what we call a radiator. There are many choices of heat sources. When there are no requirements for environmental protection, most of them always use coal burning. Now coal burning is not enough. Many use gas-fired boilers and air energy heat pumps. According to the on-site situation, fins (Gardening fins) are generally used for the heat dissipation end in the greenhouse, and the heat dissipation effect is very good.
Agricultural glass greenhouse is regarded as the most advanced greenhouse in the industry. The basic supporting equipment of natural greenhouse is the most perfect, not only the simple configuration of ventilation and heat dissipation and winter heating, but also the intelligent integrated irrigation system of water and fertilizer, lighting system, etc., and the introduction of automatic harvesting system in the future.
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