Optimization of FengTai Power Plant 350MW Supercritical Unit Water Supply RB Control Strategy

2011 ◽  
Vol 130-134 ◽  
pp. 2527-2529
Author(s):  
Jin Tao Guo ◽  
Jiang Xin
Keyword(s):  
Power Plant ◽  
Water Supply ◽  
Control Strategy ◽  
Inner Mongolia ◽  
Power Grid ◽  
Supply System ◽  
Stable Operation ◽  
Pressure Curve ◽  
Sliding Pressure ◽  
Safety Range

The improvement of RB is significant for safety of both the power plant and power grid. This paper, took the 2 × 350MW unit of Inner Mongolia Huaneng Power Plant for instance, researched on three ways to improve water supply RB, like taking a proper sliding pressure curve, improving the water supply system and optimizing the boiler combustion. In the research, we succeeded to maintain main parameters of the unit within a safety range during RB operation, and avoided a unit trip accident causing by one single pump’s fault trip. Therefore, the research’s success settled a good base for the unit’s safe and stable operation.

scholarly journals Analysis of Technical Supervision over Water Supply Pipeline

2019 ◽  
Vol 136 ◽  
pp. 03002
Author(s):  
Wenbo Li ◽  
Lanlan Liu ◽  
Jun Wang ◽  
Jian Xiao ◽  
Jun Zhang ◽  
...  
Keyword(s):  
Water Supply ◽  
Supply System ◽  
Water Supply System ◽  
Water Supply Systems ◽  
Stable Operation ◽  
Main Function ◽  
Turbine Generators ◽  
Water Turbine ◽  
Water Supply Pipeline ◽  
Hydropower Stations

The main function of technical water supply systems of hydropower stations is for cooling and lubricating water equipment, which is directly related to the safe and stable operation of water turbine generators, water cooled transformers and other important equipment. In this paper, two cases of technical water supply system fault are analysed in detail to illustrate the importance of manufacturing and installation of technical water supply system in ensuring stable operation.

Energy Conservation Strategy and Control Mechanism in Engineering of Water Supply

2012 ◽  
Vol 482-484 ◽  
pp. 1733-1740
Author(s):  
Yu Lin Pei ◽  
Xiao Yi Yang
Keyword(s):  
Energy Conservation ◽  
Water Supply ◽  
Control Strategy ◽  
Control Mechanism ◽  
Control Method ◽  
Supply System ◽  
Water Supply System ◽  
Conservation Strategy ◽  
Frequency Variation ◽  
And Control

Water supply system is a complex system. Aimed at the puzzle of being very heavy in energy consumption of system control and being not better in water supply quality resulted from being inappropriate in control strategy, The paper researched on the energy conservation strategy and control mechanism of water supply system. It discussed the cybernetics characteristic of water supply process, proposed the intelligence based fusion control strategy and the energy conservation executing strategy, and analyzed the control model of water supply purifying process and the control algorithm of constant pressure control system. Based on the comparative study of simulation experiment, the display of response curve demonstrated that the intelligence based control strategy would be better than conventional PID control method. The simulation results show that the proposed strategy combined intelligence based fusion control with speed control by frequency variation has better application prospect in water supply system.

DETERMINATION OF ARSENIC, CADMIUM, LEAD, COOPER AND ZINC IN DRINKING WATER FROM R. MACEDONIA

2018 ◽  
Vol 28 (4) ◽  
pp. 1259-1264
Author(s):  
Kiril Lisichkov ◽  
Katerina Atkovska ◽  
Neven Trajchevski ◽  
Orce Popovski ◽  
Nadica Todorovska
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Supply System ◽  
Water Supply System ◽  
Bottled Water ◽  
Cadmium Lead ◽  
The City

The presence of some chemical compounds at higher levels than maximum permissible concentrations (MPC) in the drinking water, suggests of water resources pollution. In this paper the following elements were analyzed: total arsenic, cadmium, lead, cooper and zinc. Twelve samples of water from the water supply system from the city of Skopje were examined during one year from three different springs. Also, ten samples of bottled water from three producers from the Macedonian market were tested.The determined average mass concentrations of total As, Cd(II), Pb(II), Cu(II) and Zn(II) in the analyzed water samples from the water supply system are 1.35 μg/l, 0.06 μg/l, 0.6 μg/l, 0.9 μg/l and 1,12 μg/l, respectively, and for the tested bottled water, the mean values ranges from 0.56 - 0.83 μg total As / l, 0.053 - 0.056 μg Cd(II)/l, 0.51 - 0.54 μg Pb(II)/l , 0.6 - 0.87 μg Cu(II)/l and 0.68 - 0.8 μg Zn(II)/l water.The following instrumental analytical methods and techniques were used for the analysis of the tested samples of drinking water: flame atomic absorption spectroscopy (AAS), atomic absorption spectroscopy with hydride cеll, electrothermal atomic absorption spectroscopy.The obtained results are shown in tables and graphic form. According to the obtained results a comparative analysis was carried out indicate that it is a water of good quality that can be used in different branches of the process industry.The obtained results in this paper do not exceed the values of the MPC of the Republic of Macedonia prescribed by the legal regulations for the drinking water, which confirm the health safety of the drinking water from the water supply system in the city of Skopje and the packed waters from the Macedonian market in relation to the tested elements.

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