A solar greenhouse auxiliary internal heat preservation/shading system

Abstract

The invention relates to an auxiliary thermal insulation / sun-shading system used inside a sunlight greenhouse, belongs to the technical field of environment regulation and control of the sunlight greenhouse and particularly discloses a double-function environment regulation and control device which is arranged inside the sunlight greenhouse and is used for improving heat preservation performance and sun-shading capacity of the greenhouse. A sunlight greenhouse auxiliary internal thermal insulation / sun-shading system comprises a transmission mechanism (12), a supporting system, a thermal insulation / sun-shading system and a sealing device. In the invention, a sunlight greenhouse auxiliary internal thermal insulation / sun-shading curtain is divided into two east and west parts and block control can be carried out; when thermal insulation needs to be carried out, the two parts of the thermal insulation curtain at both the sides are expanded and are subjected to abutting sealing at the middle part of the greenhouse; and when sun-shading needs to be carried out, one part of the thermal insulation curtain at one side or two parts of the thermal insulation curtain at both the sides can be expanded according to the cultivation requirements. By additional arrangement of the internal thermal insulation system, the night temperature environment of the greenhouse can be improved and the sunlight greenhouse auxiliary internal thermal insulation / sun-shading system is beneficial for improving yield and quality of production; and by additional arrangement of the sun-shading system, service life of the greenhouse can be prolonged and utilization efficiency of the greenhouse can be improved.

Description

technical field [0001] The invention relates to an auxiliary heat preservation / shading system used in a solar greenhouse, and belongs to the technical field of solar greenhouse environment control. In particular, it refers to a dual-function environmental control device installed inside the solar greenhouse to improve the thermal insulation performance and shading ability of the greenhouse. Background technique [0002] Solar greenhouse is the most important facility for spring, autumn and winter vegetable production in northern my country, and its construction scale is still expanding. From the perspective of structural characteristics, solar greenhouses have better heat preservation and heat storage functions, and many areas can achieve overwintering production without heating. But there are still the following problems: First, the room temperature is low in winter. Although solar greenhouses in many areas can basically maintain production in winter, the lowest temperatu...

AI Technical Summary

Problems solved by technology

But still there are following problems: First, the room temperature is low in winter

Although all greenhouses currently have thermal insulation covering on the outer surface of the light-transmitting surface, due to factors such as price (economic efficiency) and weight (influence on the structure) when selecting materials, most greenhouses have only one layer of external thermal insulation coverage. , even materials with good thermal insulation properties have limited thermal insulation capacity

In addition, the insulation quilts used for many years often have improper storage in summer, which can easily cause aging and damage of the insulation quilt, which will lead to problems such as the decline of the insulation performance of the insulation quilt itself and the decrease of the sealing of the lap joints, which will seriously affect the winter nighttime of the solar greenhouse. Temperature environment, even affect production

Therefore, some people began to try to use the internal thermal insulation system, but the technical solutions adopted were mostly that the thermal insulation quilt (curtain) moved along the front roof in an arc or straight line from top to bottom. When the system moved and stopped, it needed to overcome gravity, which made the operation traction Large and inconvenient for manual operation; its support system is mostly truss or double-layer skeleton, which occupies part of the upper space of the greenhouse

[0004] On the other hand, most solar greenhouses do not have sunshade equipment. Whenever the solar radiation is too strong and the only ventilation and cooling measures cannot meet the control requirements, cultivation and production can only be abandoned.

A small number of solar greenhouses with shading devices mostly use external shading. Although the effect of shading and suppressing high temperature is better, the input cost of the support system is relatively high, so it is rarely used in production.

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