[1]刘云奎.净水厂气浮单元的系统性工艺优化及技术改造[J].中国给水排水,2024,40(16):101-105.
　LIUYun-kui.Process Optimization and Technological Upgrading of Air Flotation Unit in a Waterworks[J].China Water & Wastewater,2024,40(16):101-105.
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净水厂气浮单元的系统性工艺优化及技术改造

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期数: 2024年第16期 页码: 101-105 栏目: 出版日期: 2024-08-17
Title:
Process Optimization and Technological Upgrading of Air Flotation Unit in a Waterworks
作者:
刘云奎
（上海市政工程设计研究总院<集团>有限公司，上海 200092）
Author(s):
LIU　Yun-kui
（Shanghai Municipal Engineering Design Institute Co. Ltd.， Shanghai 200092， China）
关键词:
高速气浮;  液面负荷;  大阻力配水板
Keywords:
high speed air floatation;  surface loading;  high resistance water distribution plate
摘要:
山东省M水厂设计规模为10×104 m3/d，原水为水库水。2003年增设气浮单元，包括静态管道混合器、穿孔旋流池和气浮池。针对气浮单元实际运行期间出现的问题，采取了相应改进措施：将现状管道混合、穿孔旋流工艺优化为机械混合和机械絮凝工艺；采用高速气浮技术，将液面负荷由原设计的5.6 m3/（m2·h）增至12.1 m3/（m2·h），由此将分离区长度缩短至8.0 m，节省的空间改造为直板絮凝区和气浮出水区；优化了溶气罐布置，缩短了溶气水管长度；采用集水更均匀且与高速气浮技术耦合的大阻力配水板，改进了气浮集水方式；气浮刮渣水位控制方式由电动调节阀改为即时联动更快捷的电动堰门，操作更加直观便利。
Abstract:
The design scale of M waterworks in Shandong Province is 10×104 m3/d, and the raw water is from a reservoir. The air flotation process unit was added in 2003 include a static pipe mixer, the perforated swirl pools and the gas flotation pools. In view of the problems found during actual operation, the corresponding improvement measures were taken that the current pipeline mixing and perforation swirl processes were optimized to mechanical mixing and flocculation processes. The high speed air flotation technology is adopted to increase the surface loading from the original design of 5.6 m3/(m2·h) to 12.1 m3/(m2·h), thus shortening the length of the separation zone to 8.0 m, and changing the space saved into a straight plate flocculation zone and gas surface water zone. The layout of the dissolved gas tank is optimized and the length of the dissolved gas pipe is shortened. The high resistance water distribution plate with more uniform water collection and coupled with high speed air flotation technology is adopted to improve the air flotation water collection mode. The water level control mode of air float scraping slag is changed from electric regulating valve to electric weir gate with instant linkage and faster operation, which is more intuitive and convenient.
更新日期/Last Update: 2024-08-17