No-backwall type solar greenhouse

Abstract

The invention discloses a no-backwall type solar greenhouse, which comprises a shed body, wherein the shed body comprises a rear slope surface thermal insulator and a front slope surface transmitting thermal insulator; a heat storage soil pile is arranged in the shed body; the rear slope surface thermal insulator comprises a waterproof plastic film; non-woven fabric is covered on the waterproof plastic film; external protection sizing agent formed by mixing glue and mud is poured on the surface of the non-woven fabric; a heat absorption layer is arranged on the inner surface of the rear slope surface thermal insulator, and is formed by spraying glue and mud mixed liquor; a cement layer is also arranged on the outer surface of the heat absorption layer. The normal growth temperature of vegetable at night can be effectively maintained, the surface strength of the inner wall of the rear slope surface thermal insulator is high, moisture in the greenhouse can be effectively prevented from permeating through the rear slope surface thermal insulator, and the thermal insulation effect of the rear slope surface thermal insulator is good.

Description

Technical field [0001] The invention relates to a solar greenhouse. Background technique [0002] Existing ordinary solar greenhouses mostly use the ground excavation to construct the rear wall and back slope solar greenhouse. The outstanding advantage of the rear wall and back slope solar greenhouse is: the rear wall not only has the function of heat insulation, but also has energy storage. Heat storage function, part of the sunlight shines on the back wall during the day and is converted into heat energy stored in the earth wall. At night, when the temperature in the greenhouse is lower than the temperature of the back wall, the heat energy stored in the back earth wall is slowly released to the space in the greenhouse, so that The temperature in the greenhouse at night will not be lower than the temperature that maintains the normal growth of vegetables. In the south of the Yangtze River where the groundwater level is very high, the grassland and Gobi areas where the soil lay...

AI Technical Summary

Problems solved by technology

In the Jiangnan area with a high groundwater level, the grassland Gobi area and sandy soil area with a shallow soil layer, it is impossible to dig down the soil to build a back wall and back slope type solar greenhouse, while the insulation arch shed and the ordinary insulation back wall greenhouse, due to heat storage Poor thermal insulation performance, it is not possible to grow overwintering high-temperature vegetables in severe cold seasons

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