Double-layer-cover energy-saving greenhouse with blackbody structure

Abstract

Provided is a double-layer-cover energy-saving greenhouse with a blackbody structure. The greenhouse includes a double-layer cover, a heat supplement device, a heat supply pipeline and a telescopic device. When the sunshine is sufficient, a thermal insulation screen covering layer is drawn in through the telescopic device, at the moment, the greenhouse is covered by a single layer, and the light transmitting side of the greenhouse is only covered by the light transmitting covering layer; when the sunlight is insufficient or the heat supplement device is used for supplementing a heat source forthe greenhouse, the thermal insulation screen covering layer is opened through the telescopic device, at the moment, the greenhouse is covered by the two layers, and the light transmitting side is covered by the outer light transmitting covering layer and the inner thermal insulation screen covering layer. The blackbody structure is arranged on the thermal insulation screen covering layer, the blackbody structure has the functions of high heat reflection and high heat storage at the same time, and the purposes of thermal insulation and energy saving are achieved.

Description

technical field [0001] The invention relates to a greenhouse, in particular to a double-layer covered energy-saving greenhouse with a blackbody structure. Background technique [0002] With the development of agricultural industrialization, facility agriculture is an energy-consuming industry, and the issue of heat preservation and energy saving in greenhouses has gradually become the focus of widespread attention and research by facility agriculture experts from all over the world. From the inside of the greenhouse system, the cost of greenhouse energy consumption accounts for 15%-40% of the total cost of greenhouse production. In the early days, foreign greenhouses were mainly based on abundant fuels, such as coal, oil, and natural gas. However, as the production efficiency of producers is affected by the supply and price of fuel, the development of protected agriculture around the world has been greatly impacted. Therefore, it is of great significance to study the probl...

AI Technical Summary

Problems solved by technology

However, there are still various deficiencies. For example, the fixed canopy layer will affect the passage of sunlight when the sunshine is sufficient, especially the sealing effect of the existing canopy layer is often insufficient, and the convection of air on the canopy reduces the insulation effect

And relying solely on the reflection of the canopy layer material, one with high heat reflection is expensive, and the other only considers heat reflection, which leads to the problem that the heat storage energy of the heat supplement equipment needs to be improved after the start-up

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