REDUCING THE BOOSTER STATIONS ENERGY CONSUMPTION BY WAY OF ELIMINATING OVERPRESSURE IN THE WATER SUPPLY NETWORK

The energy efficiency improvement of the city housing-and-utilities infrastructure and watersupply and water-disposal systems poses an occurrent problem. The water-supply systems energy consumption sizable share falls on the pump plants. The article deals with the issues of the operating regime management of the existing booster stations equipped with a group of pumping units regulated with frequency converters. One of the optimization directions of their energy consumption is the reduction of over-pressure in the water-distribution network and its sustentation within the regulatory values. The authors offer the structure and methodology of the data collection-and-analysis automated system utilization for revealing and eliminating the overpressure in the water-supply network. This system is designed for the group management of booster-stations operating regimes on the ground of data obtained from the pressure controlling devices at the consumers. The data exchange in the system is realized via GSM.

The paper presents results of the tests carried out at the booster stations in some major cities of the Republic of Belarus. The authors analyze dependence of overpressure in the network on the methods of the plant output pressure sustentation (daily graph or constant pressure). The authors study the elimination effect of over-pressure in the water distribution network on changing the booster station pumping units operation regimes. The study shows that eliminating over pressure in the water distributing network leads to lowering the booster station pressure. This in its turn decreases its energy consumption by 15–20 % depending on the over pressure fixed level.

1. Construction Norms of the Republic of Belarus 4.01.01–03. Drinking Water-Supply. General Provisions And Requirements. Minsk: Ministry of Architecture and Construction of the Republic of Belarus, 2004. 22 p. (In Russian).

2. Construction Norms and Rules 2.04.02–84. Manual for Design of Automation and Control Systems of Water Supply Systems. Moscow, Central University of Standard Design. USSR State Construction Committee, 1989. 30 p. (in Russian).

3. Leznov, B. S. (1991) Electricity Saving in the Pumping Station. Moscow, Energoatomizdat. 144 p. (in Russian).

4. Egilski, I. S. (1988) Automated Process-Control Systems for the Water Supply and Distribution Technological Processes. Leningrad, Stroiizdat. 216 p. (in Russian).

5. Zdor, G. N., Sinitsyn, A. V. (2014) Objectives of the Optimal Control in the Local Boosting Pump Stations. Materials of the Republic Scientific-Practical Seminar ‘Processes and Production Automation and Robotization’. Minsk, Biznesofset, 127 (in Russian).

6. Zdor, G. N., Sinitsyn, A. V., Kademik, R. S. (2015) Operating Mode Control of the Booster Pump Station as a Function of the Actual Pressure at the Side of the Customer. Innovatsionnye Tekhnologii, Avtomatizatsiia i Mekhatronika v Mashinoi Priborostroenii: Materialy III Mezdunar. Nauch.-Prakt. Konf. [Innovation Technologies, Automation and Mechatronics in Mechanical and Instrument Engineering: Proceedings of the 3rd International Scientific-Practical Conference]. Minsk, Biznesofset, 150 (in Russian).

7. GOST R IEC 60870-5-104–2004. Telecontrol Equipment and Systems. Part 5. Transmission Protocols. Section 104. Network Access for IEC 60870-5-101 Using Standard Transport Profiles. Moscow, IPK Izdatelstvo Standartov. 45 p. (in Russian).

8. Karelin, V. Ya., Minaev, A. V. (1986) Pumps and Pump Stations. Moscow, Stroyizdat. 320 p. (in Russian).

9. Petrosov, V. A. (2007) Sustainability of Water Supply. Kharkov, Factor. 360 p. (in Russian).

10. Gorshkov, A. M. (1947) Pumps. Moscow, Gosenergoizdat. 190 p. (in Russian).