A low energy consumption crop evapotranspiration water recycling system

Abstract

The invention discloses a low-energy crop evapotranspiration water recycling system, which relates to the technical field of energy recycling, including a cultivation space in which crops are cultivated, and a circulation heat exchange module and a control module are arranged inside the cultivation space, and the circulation heat exchange The module includes a first air pump, a second air pump and a heat exchange tube. The head end of the heat exchange tube is provided with a moisture absorption growth chamber, and the end of the heat exchange tube is connected to the cultivation space. An atomizer is arranged on the moisture absorption growth chamber. The heat exchange tube includes a collector The water section, the water collection section is filled with a bionic water collection module, the surface of the bionic water collection module is provided with a bionic coating and contacts the inner wall of the water collection section, the water collection section is connected to a liquid storage tank, and the liquid storage pool is used to collect water in the water collection section For liquid water, a pumping operation module is arranged in the liquid storage tank, and the pumping operation module is used to put the liquid water collected in the liquid storage tank into the cultivation operation, and the control module includes an environmental monitoring module and a control module. The invention has the advantages of low cost, energy saving and high water collection efficiency.

Description

technical field [0001] The invention relates to the technical field of energy recycling, in particular to a low energy consumption crop evapotranspiration water recycling system. Background technique [0002] The global water resource crisis is a major issue facing the community of shared future for mankind. According to the report of the Food and Agriculture Organization of the United Nations, agricultural water consumption accounts for 70% of global water resource consumption. Therefore, agricultural water conservation is the only way to solve global water resources. . Based on the recycling of agricultural energy, the recovery of gaseous water molecules produced by transpiration of greenhouse plants, also called evapotranspiration, has a good prospect. It is mainly based on four principles: (1) Using temperature difference to drive the transformation of gaseous water into liquid water to achieve evapotranspiration Water recovery, such as the use of air compressors, semic...

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Problems solved by technology

[0003] At present, the representative technologies of the four technical paths have their own advantages and disadvantages. Among them, the water collection system driven by air compression, semiconductor refrigeration and high-voltage electrostatic has the characteristics of high water collection efficiency and stable operation, but it consumes a lot of electricity and the operating cost It is relatively high and is currently only used in household and industrial scenarios; although the use of desiccant for water collection does not require additional energy consumption, the desiccant itself consumes a lot, and it is basically impossible to recycle the desiccant. Currently, this measure is mostly used Household and food preservation fields; and the use of air-soil temperature difference and bionic materials does not require energy consumption in the refrigeration process, nor does it need to recycle water-collecting substances, but its water-collecting efficiency is too low, only about 1%-10%, Its low water harvesting efficiency limits its application in agricultural fields

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