Thermal insulation multilayer composite material in ultra-wide sunlight greenhouse and production equipment thereof

Abstract

The invention discloses an ultra-wide sunlight greenhouse internal heat preservation multilayer composite material and production equipment thereof, and relates to the technical field of agricultural facilities, the ultra-wide sunlight greenhouse internal heat preservation multilayer composite material comprises a first plane material layer and a second plane material layer which are respectively located on two side surfaces, and a heat insulation layer and an airtight layer are arranged between the first plane material layer and the second plane material layer; the breadth of the ultra-wide thermal insulation multilayer composite material in the solar greenhouse is 2500-6000 mm. According to the ultra-wide sunlight greenhouse internal heat preservation multilayer composite material and the production equipment, the technical problem that in the prior art, a multi-span greenhouse and a glass curtain wall greenhouse are poor in heat preservation is solved, and the heat preservation performance of the multi-span greenhouse and the glass curtain wall greenhouse can be enhanced; the method effectively solves the problem of half-year leisure, can effectively promote the development of facility agriculture in China, and has good popularization value.

Description

technical field [0001] The invention relates to the technical field of agricultural facilities, in particular to an ultra-wide internal thermal insulation multi-layer composite material used in solar greenhouses and production equipment for producing the multi-layer composite material. Background technique [0002] Greenhouse farming has become an important part of my country's agricultural economy. With the development of facility agriculture, my country has continuously introduced and promoted new greenhouse technologies from developed countries, especially multi-span greenhouses and glass curtain walls that have been widely promoted in recent years. Greenhouses, in the facility agriculture demonstration base led by the government, are growing at a construction rate of millions of acres per year. Compared with earthen greenhouses, these multi-span greenhouses look more beautiful, tidy, and have a special sense of scale, but in the words of vegetable farmers, they are "good-l...

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Problems solved by technology

[0002] Greenhouse farming has become an important part of my country's agricultural economy. With the development of facility agriculture, my country has continuously introduced and promoted new greenhouse technologies from developed countries, especially multi-span greenhouses and glass curtain walls that have been widely promoted in recent years. Greenhouses, in the facility agriculture demonstration base led by the government, are growing at a construction rate of millions of acres per year. Compared with earthen greenhouses, these multi-span greenhouses look more beautiful, tidy, and have a special sense of scale, but in the words of vegetable farmers, they are "good-looking but not Easy to use", did not achieve the effect of being able to replace the soil greenhouses that waste land resources seriously

At present, earth greenhouses are still the top beams, because earth greenhouses have insulation quilts, which can effectively control the temperature of the greenhouse, while multi-span greenhouses and glass curtain wall greenhouses cannot achieve the same external insulation as earth greenhouses, and the energy loss is large. Generally, in winter in East China, North China, and Northeast China From November 15th to March 15th (temperature ≤ 2°C) and from August to September in summer, both low temperature and high temperature seasons cannot be planted and used

If the cost of HVAC to maintain use in these low and high temperature seasons is huge, and the cost of planting and breeding is too high, generally no profit will be generated. As a result, this advanced greenhouse for facility agriculture has become what farmers call "half a year's leisure".

[0003] Insulation has become a bottleneck hindering the agricultural development of multi-span greenhouses and glass curtain wall greenhouses

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