预警监测站优化布置方法的探讨

对供水系统实施蓄意污染破坏被认为是严重的潜在恐怖主义威胁,如果有毒的生化物质在供水系统中传播扩散,将给人们的健康和生命安全带来严重威胁.自从美国911事件以来,供水安全受到各国的广泛关注,建立预警系统是保障供水安全的重要途径.笔者对预警系统监测站的优化布置方法作了比较和分析.     

供水系统中无脊椎动物的孳生及调控技术进展

饮用水供水系统的无脊椎动物孳生问题越来越受到人们的关注。介绍了无脊椎动物在供水系统中的来源、分布及其危害;总结了水处理系统针对无脊椎动物的控制策略,主要包括优化处理工艺、强化过滤截留和有效杀灭。如何有效调控无脊椎动物在供水管网中的孳生,还需系统性的研究与探索。     

供水管网漏损管理绩效评估体系的构建

详细分析了KT市城市供水系统的水量漏失现状,并基于国际水协(IWA)推荐的供水服务绩效评估系统构建方法,通过实践应用研究,建立了一套基于IWA绩效指标的KT市供水系统漏失管理绩效评估系统,以期可以有效改善水司的系统漏失情况,降低漏耗,提高收益.     

建筑生活给水系统若干问题浅谈

随着经济的发展,节能、卫生、环保、新能源越来越被重视.本文结合建筑生活供水系统,简单介绍建筑供水系统中的节能措施,热水供水系统几种新型热源及二次供水系统防污染措施.     

变量变压供水系统设计与运行

介绍兴安县自来水公司二级泵站变量变压供水系统的组成和工作原理,并对变量变压供水系统的节能效果进行了定量和定性的分析,提出了该系统的主要特点和操作建议.     

城市供水系统决策支持系统的开发与设计

通过对城市供水系统优化运行理论的深入研究,综合运用多种系统方法和计算机技术,开发了城市供水系统决策支持系统.首先按照城市供水系统运行的内容和流程设计出该系统的总体结构和框架.在此基础上,采用Delphi和Matlab等编程工具,结合数据库技术,通过多种接口设计方法实现了供水系统优化运行的数据、模型、算法等的有机结合.最后,通过实例验证,表明该系统功能比较强大,操作简便,具有较强的实用价值,能够提高供水企业的工作效率和决策水平.     

超高层住宅小区生活、消防供水系统的设计分析及问题探讨

福州市经济在近十几年得到了飞速的发展,城市化进程也不断加快。在城市建设的过程中,越来越多的超高层住宅在福州市区拔地而起,超高层住宅的出现使居住空间在寸土寸金的福州市中心土地上得到了最大化的利用。而生活、消防供水系统作为超高层/高层建筑中不可或缺的重要组成部分之一,具有系统管网繁杂、控制系统配置复杂、供水分区决策因素多的特点。文章通过福州市区内的某超高层住宅小区生活及消防供水系统的设计特点,重点对生活及消防的供水系统分区的现场取舍决策过程和设计进行了分析,并对其中易出现的设计缺陷纳入个人实践体会中进行了探讨。     

浅析市政供水系统存在的安全问题与对策

经济的发展和城市化进程的推进,要求有完善的城市基础设施相匹配。市政供水系统关系到城市居民千家万户的日常生活和企业单位的正常生产与办公,供水系统的安全性因其关系到国计民生,因此其安全性十分的重要。本文主要从我国一些城市市政供水系统存在的安全问题分析出发,探讨提高市政供水系统安全性和应对已经出现问题的对策。     

基于层次分析和风险矩阵法的城市供水系统风险评估

以J市供水系统为研究对象,运用风险矩阵法和层次分析法对该市供水系统的风险进行了分析.结果表明,J市供水系统的风险等级接近Ⅲ级;原水系统和制水系统的风险等级达到Ⅲ级,且风险因素主要集中在自然因素、基础设施与设备设施三个方面;输配水系统及二次供水系统的风险等级为Ⅱ级,需要加强管理.同时,根据风险评估结果提出了相应的风险对策...     

高层建筑变频给水系统的合理选用

做好建筑节能的基本措施之一为防止供水系统的二次污染,变频调速供水系统在最近几年应用越来越广泛。但在实际使用中也发现有些系统出水不稳定、泵型匹配不合理、无法并入小区智能化管理系统等现象,笔者根据在深圳华侨城世纪村工程中选用变频供水系统所遇到的问题,全面的介绍了变频给水系统泵型配置时应注意的问题及系统应具备的功能,以供大家在选用变频供水系统时参考。     

Developing efficient management strategies for a water supply system using system dynamics modelling

In this paper, the causal feedback relationships among the components that make up the working mechanism of water supply systems management, including key factors and their relationship to the management of water pipes, were identified based on the conceptual framework established for water supply systems management. Subsequently, a system dynamics computer simulation model, which can be used to aid efficient management of water supply systems, was developed. The computer model consisted of water supply, pipe maintenance, and water supply business finance sub-models. The model was verified using historical data from a water supply service case study. Using the verified model, long-term managerial and operating conditions of the case study system were predicted under optimistic, basic, and pessimistic management condition scenarios. In addition, sensitivity analyses on major indicators of the case study system have been presented to show that the developed model can facilitate identification of the best policy for achieving a specific management objective of a water supply system.     

Impact of operating rules on planning capacity expansion of urban water supply systems

ABSTRACT

Water utilities often rely on industrial water supply (e.g. desalination) to complement natural resources. These climate-independent sources of supply allow operators to respond quickly to varying operating conditions, but require them to choose operating strategies, or rules. How does such operational flexibility impact the performance of water supply systems? How might it affect long-term plans for capacity expansion? Possibly significantly, as demonstrated by the analysis of a water supply system based on Singapore. First, we simulate the dynamics of the system under multiple rainfall and operating scenarios to understand the extent to which the operators’ behavior affect system performance. Results show that different operating rules can have comparable impact on the variability in system performance as hydrological conditions. Then, we show that small changes in the operating rules can lead to substantial changes in the capacity expansions, such as the size of a new desalination plant.     

Transition to a water-cycle city: risk perceptions and receptivity of Australian urban water practitioners

Transition to a water-cycle city, a sustainable urban water management future, requires the implementation of centralised and decentralised systems to augment potable water supply, protect waterways and enhance urban liveability. Risk is simultaneously driving and impeding this transition. However, risk perceptions of water practitioners and how they affect practitioner receptivity to future modes of urban water supply are poorly understood. This study characterises risk perceptions and attitudes of Australian urban water practitioners towards alternative water systems and uses a receptivity framework to suggest how receptive practitioners are to these systems. Differences between cities are identified, suggesting how familiarity might influence receptivity. These results can inform strategies to enhance receptivity, including improved communication within the water industry and beyond with its various stakeholders, improved cost-projection frameworks to provide a quantitative metric of the benefits of sustainable water options, and a shift from ‘learning to manage’ to ‘managing to learn’.     

Zigbee在楼宇消防管网水压监测中的应用

消防供水管网是城市消防基础设施和建筑消防安全的重要组成部分,其供水状况影响着公众财产及人身安全。通过监测消防供水管网水压,可掌握供水管供水情况。介绍了基于Zigbee技术的物联网应用,用于集中监测消防水压。     

重庆市江北区既有公共建筑给水排水系统节能浅述

在我国的既有公共建筑节能改造的过程中,既要重视空调和照明这类用能较大的设备,也要重视给排水系统等一些相对用电较少的系统。要从各个方面同时入手,才能把降低单位能耗这一项重要的工作做好。可以从生活热水、生活给水系统各个方面入手来降低给排水系统的单位能耗。     

水源热泵技术在给水工程中的应用

介绍了水源热泵技术原理和该技术在山西省的应用情况,提出利用城市自来水设施建设水源热泵区域集中供热、供冷系统,通过具体案例的分析,说明了其节能效果和环保优势,证明了其经济可行性。     

医院热水供应系统中抗军团菌电热水罐的设计

在某高层医院（有888张病床）的冷热水系统设计中，利用屋顶冷水箱的高位服务水头，采用准全日供应热水方式和微承压大容积电热水罐、大口径低扬程回水泵、回水导流三通、冷热水双系统支管减压等多项技术，设计了抗军团菌电热水罐供应热水的全封闭节能节水系统。与传统热水供应系统相比，该系统能够有效抑制军团菌的滋生，保障供水系统运行安全、稳定。     

Equity in water supply in intermittent water distribution networks

Equity in water supply is one of the major problems faced in intermittent water distribution systems. A new index ‘uniformity coefficient’ is introduced to measure the equity in distribution of water within the network, which may be useful for performance evaluation of water distribution networks (WDNs). An iterative head‐driven analysis technique is developed to compute the uniformity coefficient of a network. The effect of various design parameters of WDN on the uniform coefficient is studied. The results indicate that equity in water supply is significantly affected by the location of the tank and layout of the network. The equity in water supply can be improved in an existing network by staggered supply.     

鉴江供水枢纽工程区域构造稳定性分析

对湛江钢铁基地鉴江供水枢纽工程所经过地区地形地貌、地层岩性、地质构造及地震、水文地质四方面进行系统而又详细的阐述,从客观的角度把鉴江供水枢纽工程区域构造情况呈现在读者面前,再通过对其区域构造情况的简要分析,得出湛江钢铁基地鉴江供水枢纽工程区域构造稳定性的简要结论。     

城市给水管网的多目标宏观调度研究

城市供水企业是耗电大户.研究供水系统的优化运行可以达到节能的目的.因此该研究具有重要的社会经济效益.本文引入多目标决策技术,建立了以供水水质、运行费用、水量平衡函数及投入运行水泵台数四个目标函数为基础的优化调度模型.该模型是一个混合离散变量非线性规划问题,可用MDOD法求解,对实际管网进行了优化计算,结果表明:该方法可直接计算含定速泵与变速泵的供水系统.具有明显的实用价值.