Causes Analysis and Treatment Measures for Excess SiO2 Content in a 300MW Unit Boiler Water

被引：0

作者：

Zhou, Yongyan ^{[2
]}

Guo, Xiaocui ^{[1
]}

Li, Li ^{[2
]}

Zhu, Zhiping ^{[1
]}

机构：

[1] Changsha Univ Sci & Technol, Changsha, Hunan, Peoples R China

[2] Electric Power Res Inst Guangdong Power Grid Corp, Guangzhou, Guangdong, Peoples R China

来源：

NATURAL RESOURCES AND SUSTAINABLE DEVELOPMENT, PTS 1-3 | 2012年 / 361-363卷

关键词：

Excess SiO2; Activated Silicon; Colloidal Silicon; High-Pressure Heater; Tiny leakage;

D O I：

10.4028/www.scientific.net/AMR.361-363.1859

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

According to the characteristics of silicon in water, analysis is implemented for the excess SiO2 content in a 300MW unit boiler water. Serious excess SiO2 content in the economizer inlet water and boiler water is caused by high-pressure heater leakage. In addition, SiO2 content increases with the raising feedwater temperature, because colloidal silicon solubility increases with the raising feedwater temperature. Colloidal silicon in water is induced by condenser tiny leakage. High-pressure heater plugging must be handled. Improving activated charcoal filters washing and boiler blow-off frequency can be used to reduce the impact of colloidal silicon on boiler and ensure safe operation of the boiler.

引用

页码：1859 / +

页数：2

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