燃煤电厂环保全工况在线监控系统的设计与应用

为了进一步提升电力环保监管水平与针对性，强化环境监察快速反应能力，江苏省开展了燃煤电厂环保全工况实时在线监控系统的研究和建设。系统基于“全工况监控”的理念，将工业过程监控技术引入火电厂烟气污染排放监管工作，监控范围涵盖脱硫、脱硝、除尘系统所有参数及主机系统关键参数，数据更新周期降至秒级。在此基础上，系统研制了数据异常甄别模型，对数据的真实性、有效性进行评估，提升了原始数据的质量；同时，开发了环保电价考核模型，配合政府部门开展环保电价结算工作。目前系统已在江苏省得到了广泛应用，并以此为依托建成了完整的发电侧节能减排数据中心，为政府部门及时掌握全省燃煤机组污染物排放和环保设施运行状况、挖掘节能减排潜力提供了坚实的数据支撑。

Protection Facilities in Coal-Fired Power Plants

In order to further enhance the supervision level and pertinence of environmental protection and strengthen the quick reaction capability of environmental monitoring in the power industry, the research and construction of the on-line monitoring system for all-work-conditions of environmental protection facilities in coal-fired power plants are launched in Jiangsu Province. Based on the concept of“All-Work-Condition Monitoring”, the industrial process monitoring technique is introduced into the system for flue gas pollution emission supervision in thermal power plants. The monitoring scope covers all the parameters of desulfurization, denitration and dedusting systems as well as the key parameters of main systems. Also the data update frequency is shortened to a few seconds. In addition, the data anormaly detection model is developed to analyze and evaluate the authenticity and effectiveness of the data so as to improve the data quality. At the same time, the environmental electricity price assessment model is also developed in cooperation with government departments to carry out environmental electricity price settlement work. Currently, this system has been widely used throughout Jiangsu Province. A complete generation-side energy-saving and emission-reduction data center has been built on the system, which provides a solid data support for government supervision departments to timely grasp the situation of the pollutant emissions and the operation conditions of energy-saving and environment-protection facilities of coal-fired units in the province, and to exploit energy-saving and emission-reduction potentials.