Novel snow storage type agricultural greenhouse applied to rainy and snowy areas

Abstract

The invention discloses a novel snow storage type agricultural greenhouse applied to rainy and snowy areas, belongs to the technical field of agricultural greenhouses, and can provide a guarantee in rainy and snowy weather. When snow on the greenhouse reaches a certain thickness, weight of the snow is used to press down to trigger a snow melting action of a fixed depth snow melting tube, forcing the self-melting snowball to rupture and release a heat-generating material powder into the snow, taking advantage of porous characteristics of snow, the self-melting snowball reacts with oxygen in theair in pores of the snow to release a large amount of heat, which prompts the snow to begin to melt and divert and collect it, reduce the snow on the greenhouse and avoid the heavy weight from collapsing the greenhouse. After the upper layer of snow melts, the fixed-depth snow melting tube returns to its normal state and no longer continues to melt, so as to always keep the snow at a certain safethickness. In turn, the snow layer is used to heat the greenhouse, so as to maximize strengths and avoid shortcomings of the snow, and to take advantage of the advantages of heavy snow insulation while reducing the threat to the greenhouse, effectively ensuring safe production of the greenhouse.

Description

technical field [0001] The invention relates to the technical field of agricultural greenhouses, and more specifically relates to a new type of snow-storage agricultural greenhouse applied in rainy and snowy areas. Background technique [0002] With the emergence of high molecular polymers - polyvinyl chloride and polyethylene, plastic films are widely used in agriculture. In the early 1950s, Japan, European and American countries successfully applied greenhouse films to cover hotbeds, and then covered small sheds and greenhouses with good results. my country introduced polyvinyl chloride agricultural film in the autumn of 1955. It was first used to cover vegetables in small sheds in Beijing, and achieved the effect of early maturity and increased production. The greenhouse was originally a special equipment for vegetable production. With the development of production, the application of greenhouses has become more and more extensive. At present, greenhouses have been used...

AI Technical Summary

Problems solved by technology

[0003] With the development of facility agriculture in our country, a lot of vegetable greenhouses have been built all over the country, which have made a huge contribution to winter grain storage. According to incomplete statistics, there are now about 50 million mu of vegetable greenhouses in the country, and there are still large areas every year. However, for agricultural greenhouses in rainy and snowy weather every year, once there is heavy rain and snow, if the heavy snow accumulates on the greenhouses and cannot be cleaned up in time, it will even crush the greenhouses and cause huge losses. Therefore, every year News about the collapse of greenhouses under heavy snow is not uncommon in various places. For example, in 2018, Zhou, a large vegetable grower in Chaihu Town, Zhongxiang City, Hubei Province, had 55 greenhouses totaling more than 60 mu, of which 51 greenhouses were crushed by heavy snow, and the initial estimated loss reached 1 million. According to incomplete statistics, in 2018, Anhui, Jiangsu, Hubei, Hunan, Henan, Shaanxi and other places caused crop losses of 200,000 mu due to the collapse and collapse of greenhouses, the number of people affected by the disaster reached about 620,000, and the economic loss reached more than 500 million Yuan

[0004] It can be seen that in areas with a lot of rain and snow, snow disasters pose a huge threat to agricultural greenhouses. Generally, growers adopt two methods to deal with snow disasters. One is to strengthen the structure of greenhouses to improve stability, so as to resist heavy snow. The input cost of the greenhouse is very high, and the effect is not good. In the face of a large snow disaster, there will still be collapse. It is powerless and has certain dangers, and it is powerless in the face of continuous heavy snow. Therefore, a new type of agricultural greenhouse is urgently needed to help growers resist snow disasters and reduce losses.

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