High-efficiency energy-saving type internal insulation day-light greenhouse

Abstract

An inner heat preservation sunlight greenhouse with high efficient energy saving type consists of an inner and an outer layers of frameworks, the surfaces of which are respectively provided with an inner waterproof heat preservation layer and an outer euphotic heat preservation layer. A grass curtain (or a heat preservation quilt) and a rolling curtain are arranged between the inner and the outer frameworks, meanwhile a heat-insulating layer is formed between the inner and the outer frameworks. The outer framework is provided with a front wind gap and a back wind gap. The invention has the advantages of: 1. largely improving anti wind and snow abilities of the sunlight greenhouse; 2. sound heat preservation performance; 3.needing disassembly in each season, which saves labor resources, as well as prolongs service life of the grass curtain(or the heat preservation quilt), 3. shading for vegetables planted in the greenhouse due to the assembly of the grass curtain in the framework of the greenhouse. The invention also has the advantages that: 4. the lowest temperature in the room can be increased 3-5 DEG C than that of the common energy saving greenhouse; 5. the invention exempts workers from sweeping the snow on the top, which lowers labor strength, as well as reduces operational risk.

Description

Technical field: [0001] The invention belongs to a modern agricultural production facility, and particularly relates to a high-efficiency and energy-saving internal thermal insulation solar greenhouse used for planting vegetables under low temperature conditions. Background technique: [0002] Disadvantages of the existing solar greenhouse (currently the "second-generation energy-saving greenhouse" with the best comprehensive performance): [0003] 1. Straw curtains (or thermal insulation quilts) are exposed outside the greenhouse, and the air between the surface of straw curtains (or thermal insulation quilts) and the gap between straw curtains (or thermal insulation quilts) is directly connected to the outside air, which is affected by natural environments such as wind speed, rain and snow. , The thermal insulation layer on the surface of the greenhouse conducts heat outward quickly, the temperature in the greenhouse drops rapidly, and the thermal insulation performance of...

AI Technical Summary

Problems solved by technology

[0003] 1. Straw curtains (or thermal insulation quilts) are exposed outside the greenhouse, and the air between the surface of straw curtains (or thermal insulation quilts) and the gap between straw curtains (or thermal insulation quilts) is directly connected to the outside air, which is affected by natural environments such as wind speed, rain and snow. , the thermal insulation layer on the surface of the greenhouse conducts heat outward quickly, the temperature in the greenhouse drops rapidly, and the thermal insulation performance of the greenhouse is poor.

[0004] 2. When it snows in winter, all the snow accumulates on the surface of the straw curtain (or thermal insulation quilt), which not only causes the straw curtain (or thermal insulation quilt) to be wet, reduces the thermal insulation performance of the straw curtain (or thermal insulation quilt), but also requires manual cleaning on the shed. Snow not only wastes a lot of manpower, but also increases safety hazards

[0005] 3. Existing greenhouses generally only have two layers of straw curtains (or insulation quilts) and shed film for insulation. The lowest temperature in the greenhouse in winter is only 4-6°C, and sometimes it can’t reach 4°C. It cannot guarantee the minimum temperature of 8°C required by temperature-loving vegetables. Therefore, the range of vegetables that can be cultivated in the greenhouse is very narrow, and the safety of vegetable production cannot be guaranteed

[0006] 4. Straw curtains (or insulation quilts) need to be manually removed from the greenhouse every spring. They need to be stored in a relatively safe place, and then manually installed on the greenhouse in autumn. This process is necessary every year. This method is not only wasteful There are a lot of labor resources, and it is necessary to strictly prevent rain, rodents, fires and other disasters during the preservation of straw curtains (or insulation quilts). Any problem in any link will cause certain economic losses

[0007] 5. The existing energy-saving greenhouses can not solve the problem when the vegetables need to be shaded by straw curtains (or thermal insulation quilts) in summer.

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