Improvement of chemical control in the water-steam cycle of thermal power plants

被引：25

作者：

Rajakovic-Ognjanovic, Vladana N. ^{[1
]}

Zivojinovic, Dragana Z. ^{[2
]}

Grgur, Branimir N. ^{[2
]}

Rajakovic, Ljubinka V. ^{[2
]}

机构：

[1] Univ Belgrade, Fac Civil Engn, Belgrade, Serbia

[2] Univ Belgrade, Fac Technol & Met, Belgrade 11000, Serbia

来源：

APPLIED THERMAL ENGINEERING | 2011年 / 31卷 / 01期

关键词：

Chemical control; Analytical measurements; Thermal power plant; Water-steam cycle; ION CHROMATOGRAPHY; TRACE ANIONS; LEVEL; CORROSION; GENERATION; BEHAVIOR; SAMPLES; SODIUM; SYSTEM;

D O I：

10.1016/j.applthermaleng.2010.08.028

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A more effective chemical control in the water-steam cycle (WSC) of thermal power plants (TPP) is proposed in this paper. Minimization of corrosion effects by the production of ultra pure water and its strict control is the basis of all the investigated processes. The research involved the analysis of water samples in the WSC through key water quality parameters and by the most convenient analytical tools. The necessity for the stricter chemical control is demonstrated through a concrete example of the TPP Nikola Tesla, Serbia. After a thorough analysis of the chemical control system of the WSC, diagnostic and control parameters were chosen for continuous systematic measurements. Sodium and chloride ions were recognized as the ions which indicate the corrosion potential of the water and give insight into the proper production and maintenance of water within the WSC. Chemical transformations of crucial corrosion elements, iron and silica, were considered and related to their quantitative values. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：119 / 128

页数：10

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