Brackish water desalination system suitable for summer greenhouse

Abstract

The invention discloses a brackish water desalination system suitable for a summer greenhouse, and belongs to the technical field of brackish water desalination and agricultural greenhouses. The brackish water desalination system comprises a water curtain humidification subsystem, a condenser dehumidification subsystem and a ventilation cooling subsystem, water curtain humidifiers are all made of low-cost honeycomb porous paperboards, and the construction and maintenance cost is low. According to the brackish water desalination system suitable for the summer greenhouse, ventilation cooling and fresh water self-supply of greenhouse planting in summer in the Yellow River basin are achieved through solar energy under the condition that external power and fuel do not need to be consumed. The greenhouse is adopted for brackish water desalination, the requirement for fresh water for irrigation in the Yellow River basin is met, and the temperature for planting crops in the summer greenhouse is effectively reduced through dehumidified cool dry air. A second-stage water curtain humidifier is provided with a rolling pulley and can freely move in the greenhouse, the temperature of flowing air in the greenhouse can be reduced, the yield of brackish water desalination can be increased, and the purposes of flexible cooling and efficient water production are achieved.

Description

technical field [0001] The invention relates to a brackish water desalination system suitable for greenhouses in summer, and belongs to the technical field of brackish water desalination and agricultural greenhouses. Background technique [0002] The middle and lower reaches of the Yellow River are characterized by barren land, abundant sunshine, and shortage of fresh water resources. The development of modern ecological agriculture and agricultural water-saving technologies that are constrained by water resources has become the only way for ecological protection and high-quality development in the vast Yellow River Basin. The Ordos Plateau, the Yinchuan Plain and the Yellow River Delta in the middle and lower reaches of the Yellow River are rich in underground brackish water resources. Research on how to efficiently use solar energy for desalination of brackish water to provide agricultural irrigation water is an effective way to solve the problem of agricultural development...

AI Technical Summary

Problems solved by technology

Its shortcoming is that this patent uses the transpiration of crops and the natural distillation of brine on the roof to realize the humidification process of the air, and it is difficult to effectively reduce the temperature in the greenhouse in summer by relying only on its own evaporation cycle process

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