Maintenance of optimum hydraulic parameters of operation of water supply networks using trenchless technologiesin the context of reduced water consumption ПОДДЕРЖАНИЕ ОПТИМАЛЬНЫХ ГИДРАВЛИЧЕСКИХ ПАРАМЕТРОВ РАБОТЫ ВОДОПРОВОДНЫХ СЕТЕЙ В УСЛОВИЯХ СОКРАЩЕННОГО ВОДОПОТРЕБЛЕНИЯ ПУТЕМ ИСПОЛЬЗОВАНИЯ БЕСТРАНШЕЙНЫХ ТЕХНОЛОГИЙ

In the nearest future, water consumption rate is to be reduced to 160 litres per person per day in Moscow. Water consumption reduction can cause reduction of the water flow velocity, deterioration of organoleptic properties of the water and cause flavours, odours, turbidity and colourity. The soluti...

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Bibliographic Details
Main Authors: Orlov Vladimir Aleksandrovich, Averkeev Il’ya Alekseevich
Format: Article
Language:English
Published: Moscow State University of Civil Engineering (MGSU) 2013-04-01
Series:Vestnik MGSU
Subjects:
Online Access:http://vestnikmgsu.ru/files/archive/RUS/issuepage/2013/4/13.pdf
Description
Summary:In the nearest future, water consumption rate is to be reduced to 160 litres per person per day in Moscow. Water consumption reduction can cause reduction of the water flow velocity, deterioration of organoleptic properties of the water and cause flavours, odours, turbidity and colourity. The solution may consist in the narrowing of the network diameter, especially in those sections that need urgent renovation, including trenchless renovation. It will accelerate the flow velocity and ensure pre-set sanitary and hygienic properties of the water. However, narrower diameters can affect fire water flows that constitute the subject matter of this research.The authors provide the research findings based on the automated hydraulic, technical and economic analysis of loop water supply systems performed through the employment of alternative renovation methods, modeling of a water supply network on the basis of existing diameters and on the basis of diameters reduced by grades 1 and 2. It is proven that water consumption reduction accompanied by the pipeline diameter reduction by one grade doesn’t cause deterioration of any hydraulic properties; rather, itaccelerates the water flow velocity and doesn’t cause any failure to comply with effective water supply norms applicable to fire extinguishing.The authors present their original method of identification of the optimal option for trenchless renovation of pipelines and their analysis of annual energy savings.<br>Представлены результаты исследований по проведению автоматизированных гидравлических и технико-экономических расчетов кольцевых водопроводных сетей с учетом альтернативных методов реновации, моделированию работы сети при реальных диаметрах, а также со сквозным их уменьшением на 1 и 2 сортамента. Показано, что в условиях снижения водопотребления уменьшение диаметра трубопроводных сетей на 1 сортамент не приводит к ухудшению гидравлических характеристик трубопроводов, способствует повышению скоростей течения воды и не влияет на обеспечение требуемых норм пожаротушения.Представлена методика определения оптимального варианта бестраншейной реновации трубопроводов и расчета годовой экономии электроэнергии.
ISSN:1997-0935
2304-6600