对水电站机组冷却水取水口的改进

• 作 者: 彭泽元
• 机 构: 重庆水轮机厂情报室
• 出 处: 水力发电
• 发表日期: 1987年07期
• 关键词: 水电站机组 坝后式电站 径流式电站 压力钢管 自动过滤器 投入运行 取水量 低流速 流入量 弃水

在水头为30～150m的电站,水轮机和发电机的轴承冷却水大多引自压力钢管。而在径流式电站,杂物的流入量往往要比坝后式电站多得多,当取水量低于100L/min时,由于取水管细,很容易在自动过滤器前产生堵塞,造成冷却水断水。每遇这种情况,就必须关机排水,待将取水管拆下打扫干净后方可重新投入运行。这样,不仅相当费事,往往还会因停机时

In the head of 30 ~ 150m of the power station, turbine and generator bearing cooling water mostly from pressure pipe. However, in run-of-river power plants, influx of sundries tend to be much more than that of dam-type hydropower stations. When the water withdrawal rate is less than 100 L / min, clogging easily occurs in front of the automatic filter due to the fine water intake pipe, resulting in cooling water Water cut off In such a case, it is necessary to shut down the drainage until the removal pipe can be cleaned before being put back into operation. In this way, not only a lot of trouble, often due to downtime