Greenhouse nutrient solution recycling device

Abstract

The invention provides a greenhouse nutrient solution recycling device which comprises a nutrient solution supplying and compounding pool, a cultivation bed, a detection pool, a filtering pool, an ozone disinfection pool, an ultraviolet disinfection pool, a recycling pool and a controller. Various sensors are adopted so that real-time monitoring on nutrient solutions can be achieved. A flow meter is arranged so that the supplementing amount of various nutrient solutions can be conveniently displayed. A plurality of filtering layers are arranged so that multiple layers of filtering of the nutrient solutions can be achieved. A liquid level sensor is arranged in the ultraviolet disinfection pool so that the water depth of the ultraviolet disinfection pool can be kept below 10 mm, and the effect of ultraviolet disinfection is ensured. Meanwhile, the detection pool is arranged so that the recycling quality of the nutrient solutions can be monitored, and the recycling quality is ensured. According to the greenhouse nutrient solution recycling device, the nutrient solutions can be filtered, disinfected and sterilized in all directions and in every way, and the recycling effect of the nutrient solutions is greatly improved.

Description

technical field [0001] The invention relates to the technical field of agricultural facilities, in particular to a greenhouse nutrient solution recycling device, which belongs to the technical field of agricultural facility cultivation. Background technique [0002] At present, the area of ​​soilless cultivation in my country is gradually expanding, and it has gradually become an important cultivation method. Nutrient solution is the main nutrient source for plant growth in soilless cultivation, so the daily management of nutrient solution is the core link of soilless cultivation management. At present, the treatment methods of nutrient solution waste at home and abroad include recycling and reuse and non-circulation discharge. Recycling and reuse of waste nutrient solution refers to a series of measures such as disinfection, filtration and nutrient compounding of used nutrient solution waste, and then returns to the original cultivation system cycle and then absorbed and u...

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Problems solved by technology

[0003] However, although the current soilless cultivation nutrient solution waste liquid recycling is gradually rising, most of the current nutrient solution recycling devices have limited disinfection and poor filtering effects. Although the recycling has been realized, the nutrient solution contains bacteria. It is easy to cause plant diseases. Therefore, only a few times of recycling can be realized, and the recycling in the true sense cannot be realized. In addition, when the current recycling equipment is recycled, the nutrient concentration in the recycled nutrient solution decreases. The lack of detection measures and automatic compensation measures may easily cause plant malnutrition or overnutrition, which is not conducive to the rational use of nutrient solution, let alone achieve the best growth conditions for plant cultivation. Therefore, the current nutrient solution recycling device cannot realize real recycling and utilization

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