Intelligent greenhouse and environmental control method using greenhouse effect heat collection and fan coil heat exchange

Abstract

The invention discloses an intelligent greenhouse and an environment control method utilizing greenhouse effect heat collection and fan coil heat exchange. The greenhouse is a multi-unit combination light-transmitting greenhouse with a high overhead structure, including a two-in-one fan coil unit with a high-volume low-pressure fan and a heat exchanger and wet curtain with two internal and external water circulation pipelines installed in the upper part of the greenhouse. device, and connected to the heat storage tank through the same supply and return pipe. And a layer of curtains are arranged above and below the device. The present invention designs an intelligent control system to keep heat in a closed greenhouse in the cold season, start the fan and water circulation in the coil, store solar heat in the water during the day, and supplement CO2 to the crops. 2 Air fertilizer; releases the heat of the sun in the water into the air at night. In the hot season, open the greenhouse for ventilation, start the fan and external water circulation, and enhance the ventilation and cooling effect through the evaporation and heat absorption on the surface of the heat exchanger. The invention overcomes the problem of excessively high cost of regulating the greenhouse environment in the existing method in a "green and low-carbon" manner, has significant effects of increasing production and quality, reducing chemicals and saving water, and is beneficial to the transformation and upgrading of the production mode of facility agriculture.

Description

technical field [0001] The invention belongs to the technical field of temperature control of greenhouses, and in particular relates to an intelligent environment-controlled greenhouse and a control method that utilizes greenhouse effect heat collection and coil heat exchange with simple structure and is easy to implement and operate. Background technique [0002] Agricultural production is often rigidly constrained by adverse climates such as low temperature and frost, drought and little rain, and little sunshine. It has been difficult to get rid of the trouble of "depending on the weather" to varying degrees since ancient times. The rise of facility agriculture and greenhouse agriculture has enabled people to overcome the impact of adverse climate to a large extent, especially greenhouse heating and supplementary radiation measures have enabled off-season high-efficiency production to be realized. However, the heating process of the greenhouse is highly dependent on fossil...

AI Technical Summary

Problems solved by technology

Temperature During periods of strong solar radiation in horticultural production, measures such as shading, ventilation and cooling are often required, otherwise photosynthesis will stop, resulting in plant dehydration or even serious injury and death

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