Method for building ultrathin light-load heat preservation type solar greenhouse back slope

Abstract

The invention discloses a method for building an ultrathin light-load heat preservation type solar greenhouse back slope. The method comprises the following steps of: 1, building a load layer, namely connecting 4 to 6 bar-shaped steel plates and a greenhouse back slope framework along a horizontal direction to form a back slope support, and covering and fixing a layer of polycarbonate (PC) board on the back slope support; 2, building a heat preservation layer, namely sequentially paving a first asphalt felt layer, a first plastic thin film layer, a straw mattress layer, a second plastic thin film layer and a second asphalt felt layer on the upper surface of the PC board from bottom to top; and 3, building a waterproof layer, namely sequentially paving a concrete layer, a phenylethylene-butadiene-phenylethylene rubber modified asphalt layer and an aluminum foil layer on the upper surface of the second asphalt felt layer from bottom to top. The method has the advantages that: 1, the total thickness of the ultrathin light-load heat preservation type solar greenhouse back slope is 140 to 180 millimeters, and is 1 / 3 of the thickness of the conventional greenhouse back slope; 2, the unit area ratio is small, so that the constant load is reduced; 3, the cross-flow heat dissipation is reduced, and heat energy cannot be conducted outwards; 4, longitudinal and transverse torsion, vibration and deformation can be resisted; and 5, the service life is prolonged.

Description

technical field [0001] The invention relates to a solar greenhouse in the agricultural field, in particular to a method for constructing the back slope of an ultra-thin light-load heat-retaining solar greenhouse. Background technique [0002] Agricultural facilities represented by solar greenhouses in northern my country have developed rapidly in recent years. The rapid development of facility agriculture has promoted farmers' income, agricultural efficiency and rural economic prosperity, especially accelerated the development of modern agriculture and high-efficiency agriculture. It has also promoted the adjustment of the agricultural planting structure and the transformation of the rural development mode. [0003] The back slope of the solar greenhouse (also known as the back roof) plays a very important role in the greenhouse structure. It not only plays a role in heat preservation, especially affects or determines the temperature at night and in continuous rainy weather, ...

AI Technical Summary

Problems solved by technology

At the same time, the material of the load layer is heavy, the construction cost is increased, and the labor intensity is high; the insulation layer is prone to mildew, deterioration and deformation; the waterproof layer is easy to crack and affects the insulation performance; and there are disadvantages of cumbersome construction, labor and time-consuming, and lack of aesthetics

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