Dual heat preservation greenhouse structural system adopting water as temperature control medium

Abstract

The invention discloses a dual heat preservation greenhouse structural system. The greenhouse adopts an assembling type steel tube truss and non-symmetric roof structure and is of a semi-egg shape, and in different regions, the southern main roof angle alpha is calculated through an equation that alpha=23.5 degrees +(local latitude-40 degrees)*0.5+ / -1; the northern slope average elevation beta is 45-55 degrees; the total span of the greenhouse is 18+ / -6 m, the standard width of the greenhouse is 6 m and adopted as the basis of cardinal number extension, a 1.5 m wide bilateral wall and an interior thermal insulation installation space are added to each greenhouse, and the total length is 100+ / -30 m; the area of the single greenhouse is 2,000-4,500 m<2>; the building orientation extends from north-south to east-west; a black water storage bag is adopted on the northern skeleton in the greenhouse in winter for heat storage and temperature control; the advantages and disadvantages of internal thermal insulation and external thermal insulation are comprehensively adopted, changes of the indoor temperature and humidity is controlled through phase change water, and the luminous energy utilization efficiency is further improved.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a structural system of double heat-retaining sheds using water as a temperature-regulating medium. Background technique [0002] Solar greenhouses and plastic greenhouses are important agricultural production facilities in my country. Solar greenhouses have good thermal insulation performance but high cost, while plastic greenhouses are low in cost, but affected by the natural environment, there is no heat storage wall and insulation measures at night, the temperature difference between day and night is large, and the available time is limited. . Contents of the invention [0003] In order to solve the above problems, the present invention provides a double-insulation shed structure system using water as the temperature-regulating medium. Using the existing heat preservation technology, the advantages and disadvantages of the two are integrated to develop a shed between them. Chamber...

AI Technical Summary

Problems solved by technology

[0002] Solar greenhouses and plastic greenhouses are important agricultural production facilities in my country. Solar greenhouses have good thermal insulation performance but high cost, while plastic greenhouses are low in cost, but affected by the natural environment, there is no heat storage wall and insulation measures at night, the temperature difference between day and night is large, and the available time is limited.

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