Monitoring system for electricity consumption at pumping stations

Abstract

Currently, the control and accounting of electricity at 1693 irrigation pumping stations of the Ministry of water management of Uzbekistan is carried out manually, on the basis of which 17 different types of documentation are filled in. This work requires a large amount of time and human resources. This can also be observed at the water and wastewater pumping stations. In this paper, the existing system of accounting for electricity consumption is fully considered on the example of several irrigation pumping stations and one regional management of pumping stations. The organizational structure and the procedure for maintaining documents on accounting and collecting information about the electricity consumed by pumping stations were analyzed. Based on the data obtained, an automated system for monitoring and accounting of electric power at pumping stations has been developed. This system eliminates unauthorized switching on pumping units, theft, or inefficient power consumption. As a result, it reduces the annual electricity consumption of pumping stations, and also reduces labor costs. The payback period for the introduction of an automated system for monitoring and accounting of electric power at pumping stations is 2.5 months.

Methodology for assessing the efficiency of water jet pumps in auxiliary systems of irrigation pumping stations

“…kW. The efficiency of an installation with jet pumps is in the range of 10-30 % [5], and of a pumping unit with a vane cantilever pump-40-70 % [9,21].…”

“…Jet pumps will be used as emergency pumps, for example, only during power outages.We evaluated reliability parameters by external failures that occurred at the pumping station "Kiziltepa-2" for the period from 2004 to 2011 [24]. The main external failures are power outages [21]. For the analysis of operational reliability according to external failures, the data from the service of operation of the pumping station and the State Inspectorate "Gosvodkhoznadzor" were used [24].…”

“…The Kiziltepa-2 pumping station is located in the Kizil-Tepa district of Navoi region. The pumping station has been in operation since 1985 and is part of the Kizil-Tepa district administration of the Amu-Bukhara Machine Canal [21,22,23]. The design mode of operation of the pumping station is one month (June) with a supply of 38.4 m 3 /s according to the schedule (24 units in operation, 2 units in reserve).…”

Consumption of Irrigation Pumps Pumping Water with a High Content of Mechanical Impurities

“…This issue is especially relevant for industries that consume a large amount of energy. The main electricity consumer in agriculture of the Republic of Uzbekistan is the machine water intake [1]. The park of pumping stations has more than 1600 pumping stations for reclamation purposes.…”

“…One of the main negative factors that significantly worsen the operating conditions of pumping equipment is the saturation of the pumped water with mechanical impurities. The technical and economic consequences of the presence of a significant content of mechanical impurities in the pumped water are expressed in the deterioration of the operating parameters of the pumping unit (pressure, supply, efficiency) and the associated increase in electricity consumption and in significant labor and material costs for repair work to eliminate the consequences of waterjet wear of the pump flow parts [1,4,5,7,10]. The presence of suspended sediments in the pumped water leads to overspending electricity spent on lifting water or undersupplying this water at a constant value of the amount of electricity consumed.…”