Bubbly plastic heat-preservation shed film

Abstract

The invention discloses a heat preservation technique of a shed film for a sunlight greenhouse. At present, all shed films for a sunlight greenhouse / shed do not have a heat preservation function; therefore, in order to keep a temperature in the shed, a heat-preservation quilt for the shed is needed for coverage for heat preservation at night; however, in winter in the north of China, even though the heat-preservation quilt is used for the coverage, the sunlight greenhouse / shed cannot be still used; as the weather is cold in winter in the north of China, even though sunlight exists by day, a temperature difference between the interior and the exterior of the shed is also quite big; as the shed film does not have the heat preservation function, heat coming in through irradiation dissipates immediately; no heat can be preserved at night. According to the heat preservation technique of the shed film for the sunlight greenhouse, a plastic air-bubble bubbly shed film is produced by utilizing the heat preservation performance of air; the plastic air-bubble bubbly shed film can realize light-transmission and heat-preservation; not only is the heat-preservation quilt for the shed discarded, but also the plastic air-bubble bubbly shed film can be used similarly even in winter in the north of China; methods for mounting and using the plastic air-bubble bubbly shed film are nearly completely the same with methods for mounting and using the existing shed films.

Description

technical field [0001] The invention relates to solving the problems of daylighting and heat preservation of the solar greenhouse film. technical background [0002] At present, in agricultural production, in order to adapt to the growth of crops, the method used to increase the ambient temperature is to use plastic greenhouses. Due to the large heat transfer coefficient of the plastic film, the temperature difference between the inside and outside of the shed is small during the day, and the temperature inside the shed is sufficient, but at night the temperature difference between the inside and outside of the shed is large, so the heat in the shed is quickly transferred to the outside of the shed, so the temperature inside the shed is not good. Suitable for crop production. [0003] In order to solve the thermal insulation problem of the shed film, the way to prevent the leakage of heat radiation is now adopted, that is, to add an insulating agent in the shed film. This ...

AI Technical Summary

Problems solved by technology

[0006] In winter in northern my country, even when there is sunshine, the outdoor temperature is very low. The shed film dissipates heat while lighting, and there is almost no heat to store in the shed.

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