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作 者:张爱习 赵丽茶 张彦奇 毕云铎 常向阳 滕慧颖 ZHANG Ai-xi;ZHAO Li-cha;ZHANG Yan-qi;BI Yun-duo;CHANG Xiang-yang;TENG Hui-ying(The semi-arid Agriculture Engineering and Technology Research Center of P.R.China,Shijiazhuang 050051,China;Shijiazhuang Management Office of Hebei Water Supply Co.,Ltd.,Shijiazhuang 050000,China;Agricultural Machinery Appraisal Station of Hebei Province,Shijiazhuang 050031,China;Shijiazhuang Xihai Technology Development Co.,Ltd.,Shijiazhuang 050051,China)
机构地区:[1]国家半干旱农业工程技术研究中心,石家庄050051 [2]河北供水有限责任公司石家庄管理处,石家庄050000 [3]河北省农业机械鉴定总站,石家庄050031 [4]石家庄熙海科技开发有限公司,石家庄050051
出 处:《节水灌溉》2021年第6期93-96,共4页Water Saving Irrigation
基 金:河北省重点研发计划项目(18223613D)。
摘 要:现有臭氧混合泵是在普通开式旋涡泵的吸入流道处增加了一个臭氧进气管而制成的,它利用了开式旋涡泵的气液混输特性和反复强制旋涡实现气液混合。主要存在臭氧与水接触时间短、接触面积小、混合效率低、臭氧利用率低、臭氧水浓度低和臭氧水制取成本过高等问题,造成臭氧水灌溉杀菌技术难以普及推广。为解决臭氧水灌溉和灌溉杀菌中臭氧水制取成本过高这一关键问题,将正反螺旋式静态混合器叶片的正反表面制有部分圆球状凹坑(即蜂窝),制成蜂窝螺旋静态混合器,再将其正反螺旋叶片依次置于开式旋涡泵的出口流道内。利用开式旋涡泵较好的气液混输特性,在进水口加装进气管制成臭氧混合泵,实现臭氧与水的强制混合,提高了臭氧的利用率。再利用置于开式旋涡泵出口流道内的正反螺旋叶片表面的蜂窝产生微漩涡,使臭氧与水再次混合,进一步提高臭氧与水的混合效率,再次提高臭氧水浓度,进一步降低臭氧水制取成本,为臭氧水在农业、植保、环保和水处理等行业推广应用,奠定坚实技术基础。The existing ozone mixing pump is made by adding an ozone inlet pipe at the suction passage of the ordinary vortex pump with open impeller.It makes use of the gas-liquid mixing characteristics of the vortex pump with open impeller and repeatedly forced vortex to realize gas-liquid mixing.The main problems are short contact time between ozone and water,small contact area,low mixing efficiency,low utilization rate of ozone,low concentration of ozone water and high production cost of ozone water,which make it difficult to popularize ozone water irrigation sterilization technology.In order to solve the key problem of high production cost of ozone water in ozone water irrigation and irrigation sterilization,a honeycomb spiral static mixer was made by making some spherical pits(honeycomb)on the front and back surfaces of the blades of the positive and negative spiral static mixer,and then the positive and negative spiral blades were successively placed in the outlet channel of the vortex pump with open impeller.By making use of the better gas-liquid mixing characteristics of the vortex pump with open impeller,the forced mixing of ozone and water is realized,and the utilization rate of ozone is improved.Then by using the honeycomb placed in the positive and negative spiral blades in the outlet channel of the vortex pump with open impeller to create micro vortex,the ozone is mixed with the water again.So the mixing efficiency of ozone and water is further improved,the concentration of ozone water is again increased,and the production cost of ozone water is further reduced,which will lay a solid technical foundation for the promotion and application of ozone water in agriculture,plant protection,environmental protection and water treatment industries.In order to further improve the mixing efficiency of ozone and water,increase the concentration of ozone water again,and further reduce the production cost of ozone water,it will lay a solid technical foundation for the popularization and application of ozone water in agricul
关 键 词:臭氧水灌溉 灌溉杀菌 臭氧混合泵 开式旋涡泵 蜂窝螺旋静态混合器
分 类 号:S275[农业科学—农业水土工程]
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