Solar active-passive heat storage 'triple' structure wall building system of solar greenhouse

Abstract

The invention relates to a solar active-passive heat storage 'triple' structure wall building system of a solar greenhouse and belongs to the field of garden facilities. The 'triple' structure wall building system mainly comprises a phase-change heat storage wall panel, a solar air collector, a plurality of wall air channels, autoclaved lime-sand bricks and a heat preservation material plate. The phase-change heat storage wall panel is directly adhered to the inner surface of the back wall of the solar greenhouse, the middle tier of the back wall is constituted by the autoclaved lime-sand bricks, and the heat preservation material plate is adhered to the outer side of the back wall. The middle tier, constituted by the autoclaved lime-sand bricks, of the back wall is provided with the wall air channels, and the phase-change heat storage wall panel, directly adhered to the inner surface of the back wall of the solar greenhouse, and a wall body form a passive solar phase-change heat storage wall. The solar air collector is communicated with the wall air channels through a ventilator, an air return valve and an air supply valve to form an active solar hot air wall heat display and heat storage system. Therefore, heat collecting, preserving and insulating capacities of the solar greenhouse wall can be remarkably improved.

Description

technical field [0001] The invention relates to a new solar greenhouse solar energy active-passive heat storage "triple" structure wall construction system that combines the active heat storage of the solar air heat collection system with the passive heat storage of the phase change heat storage wall material, and belongs to the field of gardening facilities . Background technique [0002] With the continuous advancement of my country's urbanization process, ensuring the long-term, safe and stable supply of vegetables in urban and rural areas, improving the production capacity of off-season vegetables in winter, and promoting and realizing the modernization of facility agriculture have become a major task in my country's "Twelfth Five-Year Plan" period. Although most of the northern regions in my country have outdoor air temperatures below 0°C in winter, they are rich in solar energy resources. The use of solar greenhouses can realize off-season production of vegetables and ...

AI Technical Summary

Problems solved by technology

Since the solar energy irradiated on the surface of the back wall through the front slope roof has a limited depth of influence on the interior of the wall (about 300mm ~ 400mm), the temperature of the inner layer of the wall along the thickness direction is limited, and the overall heat storage capacity of the thick wall is limited. , the utilization rate of solar energy is not high, and more heat cannot be provided to the greenhouse at night, resulting in a generally low temperature and high humidity in the greenhouse environment in winter, the ability to resist natural disasters is not strong, freezing damage often occurs, and the planting yield of vegetable crops is low

Images