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UDC 628.147.2.004.69
Ivashchenko G. I., Moiseev A. V., Riffel E. V., Shevchuk S. V., Yakimov S. Yu., Furmanova Yu. I.
Integrated Approach to Optimization of Operation of the Water Supply and Distribution System of the City of Omsk
Summary
An integrated approach to the optimization of operation of the water supply and distribution system of large cities based on hydraulic modelling with the use of modern software products is proposed. A possibility of adaptation to actual conditions of calculated results obtained by electronic simulation of water supply networks is shown on the example of Omsk. The solution of this problem makes it possible to model the necessary changes in the composition and mode of operation of each of the elements of a water supply network. The result of such an approach is reduction in the accident rate at networks and energy savings at pumping stations. Methods of execution of works, means of the measurement used, sequence of measures to be taken, the results obtained and possible prospects are presented.
Key words
zoning , pumping station , water supply and water distribution system , hydraulic modeling , power saving , reduction in accident rate , water supply reliability
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DOI 10.35776/MNP.2020.05.09
UDC 628.147.25
Solov’ev Viktor
The concept of eliminating failures by the method
of re-laying sections of the water distribution and sewer networks
Summary
«The concept of eliminating failures by the method of re-laying separate sections of the water distribution and sewer networks» is presented that provides for changing the parameters of the network trouble sections subject to the replacement, or for correcting the criteria of making decisions about re-laying trouble sections. As a result, an increase or decrease in the length of the replaced networks for the reporting period is provided in accordance with the available capabilities. The proposed methodology in Vodokanal of Novokuznetsk for the control system arrangement allows the responsible personnel to make timely decisions on the network section re-laying; and visually and easily evaluate the results of the operations in current mode. Before the introduction of the control system, about 7% of the total number of trouble sections of the water distribution and sewer networks were subject to the replacement. Upon the introduction of the control system the number of replaced trouble sections increased to 20–22%.
Key words
reduction in accident rate , network re-laying , network repair , failure elimination , old pipeline sections
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UDC 628.144.22
Riffel E. V., Shishov S. Yu., Tchernyayev D. D., Rodin N. V., Bychkov D. A.
Developing and implementing measures on pressure normalization in the water supply system of Tyumen city
Summary
The experience of introducing pressure regulators in the water distribution network of Tyumen city is presented. The procedure of designing the network operation parameters basing on hydraulic simulation with the use of advanced software is set. The possible efficient long-term use of pressure regulators under subzero weather conditions typical for Siberia is shown. The practical experience of the equipment installation and adjustment is laid out; the specific features of the equipment operation are considered. Based on the pipeline failure number the analysis of the efficiency of the measures on the free head normalization in the network is carried out. The installation of pressure regulators in the Tyumen water distribution network resulted in the failure rate reduction and power saving at the pumping stations.
Key words
water supply and water distribution system , pressure regulator , hydraulic modeling , reduction in accident rate , water supply reliability
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UDC 628.1/2:628.147.2
Kalmykov A. A.
Utilities network systems: operation experience and practical proposals on development
Summary
Water supply and wastewater disposal systems in the most of the big Russian cities for more than hundred years already have been providing for public water supply and wastewater disposal and treatment which are one of the most significant blessings of civilization. At present assessing the situation with the water supply safety and determining the vector of development with account of the gained experience including overcoming negative trends that reflect different processes in the branch have been tasks of primary importance. The attempt to summarize the experience of operating water distribution networks and evaluate the current state of the industrial relations and water and wastewater services maintenance forms as well as of the prospects for the development of network systems as part of the whole branch is presented. The apparentness of the pending problems and their structural analysis using the example of solving the applied problems of reducing network accidents show the need to formulate the concept of the branch development. Only the extensive discussion and engagement of all the stake holders – business, scientific community, managers of public utilities, regional and federal officials will provide for solving the problems in the branch that have become more acute lately and that have made the residents of the Russian regions suffer most notably.
Key words
reduction in accident rate , reliability of water and wastewater network , concession agreement , concept of water and wastewater utilities development
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