Change in the power consumption and capacity of booster
pumping stations in Samara during their reconstruction

Summary

Information on the reconstruction of pumping stations in Samara is presented. The basic methods and means of its phased implementation are described. In order to optimize the operation of the water distribution network and structures, to identify unaccounted-for-losses and water flow rate in the system, to reduce the consumption of electricity by the facilities, a package of measures including the use of IT solutions, software for hydraulic modeling of the water supply system shall be carried out. The values of monthly and annual electricity consumption and water supply for booster pumping stations reconstructed in 2015 and 2018 are given. The decrease in energy consumption for pumping water is determined. The change in water supply by booster pumping stations after reconstruction is estimated. An assumption is made about the reasons for the possible absence of a decrease in water supply during the reconstruction of pumping stations taking into account the pressure stabilization at the outlet.

Key words

water supply system , power consumption , frequency-regulated electric drive , booster station , pump operation regulation

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Package of energy-efficient measures on the upgrade of the wastewater disposal system of the Urban District of Samara

Summary

The information on the upgrade of the wastewater pumping stations of the wastewater disposal system in the city of Samara is presented. The main methods and means of the step-by-step implementation of the upgrade are described. The values of monthly and annual electricity consumption by the pumping stations are given. A reduction in the electricity spent for pumping waste liquid is determined. As a result of the upgrade, the efficiency of the equipment operation has increased due to the acquisition of complete and reliable information on the parameters of technological processes in real time mode. The introduction of the supervisory control provided for the rapid response to a technological failure of the stations.

Key words

sewerage pumping station , power consumption , water disposal system , frequency-regulated electric drive , pump operation regulation

Integrated approach to the upgrade of booster pumping stations in Samara

Summary

The applicability of improving the reliability and energy efficiency of the water supply system of Samara is specified. The main methods and means of step-by-step implementation of the plan of upgrading booster pumping stations are described. The description of software and hardware system chosen for the implementation of the set task is presented. The data on the reduction of the total power consumption by 37 pumping stations is given. Frequency regulation of the pumping units operation provided for 40% reduction of the power consumption; the introduction of the adaptive regulating algorithm for the stations with parallel operation of several pumping units provided for 27% reduction of power consumption. The estimated reduction of power consumption with replacing pumping units after the introduction of the adaptive regulating algorithms was 18%. 8% reduction of the failure rate in the distribution network owing to the average pressure reduction in the distribution network and due to the improvement of the operational control efficiency by obtaining complete exact information on the process parameters in real-time mode was noted. The system introduction predetermined operating personnel downsizing and simplifying the organizational-technical measures for the maintenance of the pumping stations. The criteria expedient to be used in estimating the operation efficiency of the stations are indicated. The diagrams of the operation parameters of a number of upgraded pumping stations are presented. The recommendations on the further upgrade of the booster pumping stations on the Samara territory are quoted.

Key words

water supply system , energy efficiency , pumping station , pump operation regulation , specific power consumption