摘要
介绍常见的电厂凝汽器冷凝管除垢技术,针对现有除垢技术不足,国内出现了凝汽器在线清洗机器人。该在线清洗机器人主要综合了机器人技术、高压水射流技术和水下密封技术等关键技术,目前已在国内某330MW机组成功应用。通过比较改造前后凝汽器性能指标,加装机器人后冷凝管清洁系数提高约0.221。试验数据修正到设计工况下,凝汽器端差平均降低2.31℃,凝汽器压力平均降低0.71kPa,因背压降低可使发电煤耗平均降低1.4g/kWh。
Common condenser cooling pipe cleaning methods in power plant were introduced. In order to overcome the shortcomings of existing cleaning technology,a condenser on-line cleaning robot appeared in domestic,which involved robots technology,high-pressure water jet and underwater dynamic sealing. At present,the robots have been installed successfully in a 330 MW power unit. Compared with the condenser performance indicators before installation,the condenser pipe cleaning coefficient increased by about 0. 221 after adding robots. Test data were corrected to the design conditions. The condenser terminal temperature difference deceased by 2. 31℃ on the average. The condenser pressure deceased by an average of 0. 71 kPa,resulting in reducing power generation coal consumption by an average of 1. 4 g/kWh.
出处
《节能》
2017年第1期39-41,共3页
Energy Conservation
