陈伟昌1，杨  跃1，韦三刚1，李锦鸿2

（1.珠江水利委员会珠江水利科学研究院，广东 广州 510610；

2.太原理工大学水利科学与工程学院 山西 太原 030000）

　　摘  要：景观湖等水体流动性弱，易发生水体缺氧等水生态问题，严重损害水体质量，造成水体黑臭等现象，威胁着水体生态安全。为解决此类生态问题，保持水体良好的环境质量，研究一种基于太阳能的水体垂向循环装置系统，以加强水体交换，从而提升深层水体溶解氧含量，改善水体生态循环。配套水质在线监测设备，基于LoRa自组网，保证在太阳能供电条件下装置的持续在线，提出一种以溶解氧含量和设备剩余电量为联合约束指标的动态调节方法，通过实时监测水体溶解氧含量，自动控制水体循环装置调节水体溶解氧浓度。并在龙湖进行实验验证，实验结果表明：装置运行能有效提升水中溶解氧含量，减少溶解氧含量波动变化，有助于维持水体健康水质。

　　关键词：水体循环；循环装置；垂向循环；太阳能；溶解氧提升；动态调节

Research on water vertical circulation system based on solar energy

CHEN Weichang1, YANG Yue1, WEI Sangang1, LI Jinhong2

(1. Pearl River Water Resources Research Institute, Guangzhou 510610, China;

2. College of Water Conservancy Science and Engineering, Taiyuan University of Technology, Taiyuan 030000, China)

　　Abstract：Water bodies such as landscape lakes have weak fluidity and are prone to water ecological problems such as poor water oxygen, which seriously damages water quality, causes black and odorous water bodies and threatens water ecological safety. In order to solve such ecological problems and maintain good environmental quality of water body, a water body vertical circulation device system based on solar energy is studied to strengthen water body exchange, thus to increase the content of dissolved oxygen in deep water body and improve water body ecological circulation. Equipped with a water quality online monitoring equipment and LoRa self-organizing network, a dynamic adjustment method based on the constraint index of combining dissolved oxygen with remaining power of the equipment is proposed, which can ensure that the device is continuously on line under solar power conditions. By real-time monitoring of the dissolved oxygen content in water bodies, the water circulation device can automatically control the dissolved oxygen concentration in water bodies. Experiment carried out in Longhu shows that the device can effectively increase dissolved oxygen content, reduce the fluctuation of dissolved oxygen content, and help maintain healthy water quality of the water bodies.

　　Key words： water circulation; circulation device; vertical circulation; solar energy; dissolved oxygen content increasing; dynamic regulation