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What pre-treatments are required for seawater to be used as cooling circulating water?

2009-03-14View Original

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Let’s discuss together the approximate concentrations in ppm of chloride ions, calcium and magnesium ions, etc., in seawater; what pre-treatments are necessary for using it as cooling circulating water; and various precautions related to its use.
Reply #22009-03-14
Electrode Corrosion and Its Prevention in the Seawater Circulation System of Binhai Power Plant.txt Electrode Corrosion and Its Prevention in the Seawater Circulation System of Binhai Power Plant As economic development has increased the demand for electricity, many new power plants have been built along the eastern coast of China since the 1980s. To conserve freshwater resources, Binhai Power Plant uses seawater as the circulating cooling water. Due to the high corrosivity of seawater, and the fact that the circulating water system is a complex one composed of various materials, pipes, and equipment of different specifications, factors such as differences in corrosion potentials among different materials, variations in the polarization behavior of these materials, and seawater flow lead to galvanic corrosion, which constitutes an important form of corrosion in such systems. This results in corrosion and failure of the materials and equipment used. This paper analyzes in detail the causes of corrosion, influencing factors, and protective measures taken, based on the corrosion issues that occurred in the seawater circulating water system of Unit 5 at a coastal power plant in Shenzhen. 1  Composition of the circulating water system: The power plant’s generator set has a capacity of 300 MW, and the circulating water used is natural seawater. The circulating water system within the main plant includes
Reply #32013-03-21
What about the medication? How should it be handled?

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