三河电厂3、4号机组锅炉主保护的完善

Improvement of Main Protection of Boiler 3 & 4 in Sanhe Power Plant

三河电厂二期工程3、4号机组采用了中水利用、烟塔合一、脱硫无旁路、脱硝等新技术,是火电机组绿色环保的典范,顺应了现阶段社会经济发展的基本要求;新技术、新系统的增加,对机组锅炉主保护提出了新的要求,为此对其进行了完善,逻辑的正确性和可靠性通过试运得到了确定,在保护设备安全的同时,使得机组能够长期稳定的运行。

In the second phase of Sanhe Power Plant, advanced and environmental technologies such as the usage of processed sewage water, the technique of using cooling water to supersede chimney, desulphurization without bypass and denitration have been used. These technologies are meeting the basic requirements of modern society. The usage of new technologies and installations of new systems require more complicated main protection for boiler sets. Thus we made improvements, defined the capability of the system, prolong the using time of the equipments while the safety are ensured.