Enclosed daylight greenhouse cooling apparatus

Abstract

An enclosed daylight greenhouse cooling apparatus comprises a spraying atomizing system and a condensation heat-radiation system. The spraying atomizing system comprises a water conveying pipe, a condensate water storage tank, a high-pressure water pump, a condensate water collection pipe, condensate water collectors, a spraying pipe, atomizing nozzles, greenhouse built-in separation films and film pressing lines. Condensation heat-radiation system comprises a gravity heat pipe heat exchanger, a cold water tank, a water pump, a hot water storage tank, an axial flow draught fan, an exhaust pipe and a backwind pipe. By the use of the enclosed daylight greenhouse cooling apparatus, problems of large water and heat resource waste due to the employment of ventilating cooling and wet curtain draught fan cooling in the prior facility agriculture, and pest and disease occurrence due to the entrance of germs and pests to the greenhouse through the ventilating port and the draught fan port can be solved; and the enclosed daylight greenhouse cooling apparatus can be simply operated, possesses safety and high efficiency and integrates functions of energy and water conservation, temperature reduction and moisture reduction.

Description

technical field [0001] The invention relates to a cooling device for facility agriculture, in particular to an energy-saving, water-saving and cooling device based on two-phase circulation of water and steam. Background technique [0002] Solar greenhouses have made positive contributions to solving the off-season vegetable supply in winter in northern my country, increasing farmers' income, and improving the living standards of urban and rural residents. Especially in recent years, my country's solar greenhouse industry has begun to enter the fast lane of development. Technological innovations such as multi-span greenhouses, intelligent greenhouses, and plant factories have continuously made breakthroughs, making my country's greenhouse industry achieve vigorous development. At present, the development area of ​​my country's facility agriculture ranks first in the world. The annual output value of greenhouses and greenhouse vegetables has reached 100,000 yuan / hm2, and the ...

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Problems solved by technology

[0003] The purpose of the present invention is to address the deficiencies in the prior art and provide a closed solar greenhouse cooling device. The device of the present invention can solve the waste of a large amount of water and heat resources when the current facility agriculture adopts ventilation cooling and wet curtain fans to cool down. At the same time, the vents and fan ports are likely to cause germs and pests to enter the greenhouse and cause serious pest damage. The device of the present invention is easy to operate, safe and efficient, and is a greenhouse spray cooling device that integrates energy saving, water saving, cooling and dehumidification

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