Regular triangular greenhouse solar chimney ventilating system

Abstract

Provided is a regular triangular greenhouse solar chimney ventilating system. The system comprises solar chimneys, outdoor air inlets and indoor air inlets, wherein the solar chimneys are arranged onside wall bodies of both sides of a greenhouse, the outdoor air inlets are formed in the lower ends of the solar chimneys, and the upper ends of the indoor air inlets are communicated with the upper ends of the side walls of the wall bodies; and the system further comprises multiple air supply outlets, with different sizes, formed in the top of the greenhouse and an exhaust outlet in the bottom ofthe other side of the greenhouse. A hot pressing effect of the solar chimneys is utilized, hot air is sent into the greenhouse through the indoor air inlets and the air supply outlets formed in the top of the greenhouse so as to make up for the lack of heat in the greenhouse in winter and provide a better growth microenvironment for fruits and vegetables. The temperature in the greenhouse is distributed more evenly through air ports with different sizes, in addition, the air supply outlets variable in size can also make the total pressure of a draught fan reduced, and the energy consumption of the whole ventilation system is reduced.

Description

technical field [0001] The invention relates to a ventilation system for increasing the temperature of a greenhouse in winter, in particular to a solar chimney ventilation system for an equilateral triangle greenhouse. Background technique [0002] Greenhouse is an important modern agricultural measure, and it is also a complex microenvironmental ecosystem, so it needs a suitable crop environment to adapt to its growth. Common greenhouses often adopt an artificial frame-covered structure in which one or more layers of thermal insulation plastic film are covered on the skeleton of a bamboo-wood structure or a steel structure. Same as the greenhouse effect, the film prevents a large amount of long-wave radiation in the shed at night, thus forming an independent greenhouse space so that the shed can have good temperature protection during the day and night. In addition, the outer membrane can effectively prevent the loss of carbon dioxide produced by the respiration of fruits ...

AI Technical Summary

Problems solved by technology

However, covering these opaque materials will not only reduce the incident solar radiation during the day, but also affect the photosynthesis of plants, resulting in a decrease in the temperature in the shed and inhibition of crop growth.

In addition, the structure of the conventional greenhouse is characterized by its long length, and the uneven distribution of solar radiation in the morning and evening, which makes the uneven distribution of heat along the length of the greenhouse, resulting in different heating of the growing areas of fruits and vegetables in the greenhouse, which affects the quality of their growth.

Images