摘要
针对由多水源、多供水系统、多供水企业、多管理部门等造成的小城镇安全供水保障率低的现实问题,基于危害分析与关键控制点(HACCP)理念,建立了供水关键节点实时控制数学模型。该数学模型将供水系统关键部位的水量、水压、水质等实时数据作为输入数据,与供水系统设计值和国家标准确定的正常范围值进行比较和赋值。当模型中供水系统赋值求和为"0"时,表示关键部位正常,当赋值大于或等于"1"时,则相应关键部位报警。模型实例应用结果表明,该模型可以降低小城镇供水系统在供水生产、加工、输送过程中的风险,对提高小城镇安全供水保障率具有重要意义。
Low guarantee rate of water supply safety in small towns is caused by of the occurrence of too many water sources,water supply systems,water supply enterprises,and administrative departments.Based on the concept of Hazard Analysis Critical Control Point（HACCP）,a real-time control mathematical model of key nodes of water supply was developed.The mathematical model adopted the water yield,water pressure,and water quality of key positions in the water supply system as input data,and compared them with the design values in the water supply system and those presented in the national standard and then assigned appropriate values to them.On one hand,when the sum of assigned values was″0″,it indicated that the critical position is normal.On the other hand,when the sum of assigned values was greater than″1″or equal to″1″,an alert can be reported for the corresponding position.Application of the model on the water supply safety in a small town was analyzed,which suggested that the mathematical model is of important significance to decrease the risks in the process of water production,process,and transfer in the water supply system,and therefore to improve the guarantee rate of water supply safety in small towns.
出处
《南水北调与水利科技》
CAS
CSCD
北大核心
2014年第4期189-193,共5页
South-to-North Water Transfers and Water Science & Technology
基金
天津市水务局科技项目"大港多水源调配"(津水资2012-45)
关键词
小城镇
安全供水
HACCP
实时控制
关键点
数学模型
small town
water supply safety control
HACCP
real-time control
critical control point
mathematical model
