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随着汽轮机功率的增大和机组集中控制的需要,汽轮机的保护监视设备从以往所配置的几项保安部套,经过逐步完善、提高、至今已发展成为整套的汽轮机保护监视装置。汽轮机保护监视装置是汽轮机的耳目。它既能直接予防汽轮机事故的发生,监视汽轮机的运行是否正常,又是汽轮机起停和运行中不可缺少的测试装置。前一段时间,我们对我厂已运行机组保护监视装置的情况作了调访,并与国外大型进口汽轮机保护监视装置作了比较。调访表明,我厂10万、20万瓩汽轮机保护监视装置存在一些问题。例如,无真空保护;无润滑油压降低停机保护,无汽轮机大轴弯曲测
With the increase of turbine power and the need of unit centralized control, the turbine protection monitoring equipment has gradually developed into a complete set of turbine protection monitoring devices from several sets of security burets deployed in the past. Turbine protection monitoring device is the eyes and ears of the turbine. It not only can prevent the occurrence of turbine accident directly, monitor whether the operation of the turbine is normal, but also is an indispensable test device for turbine starting and stopping and running. Some time ago, we made a survey on the condition that the plant has operated the unit protection monitoring device and compared it with the monitoring and protection device for large imported steam turbines abroad. Interview shows that I plant 100,000, 200,000 瓩 turbine protection monitoring device has some problems. For example, no vacuum protection; no lubrication pressure reduction shutdown protection, no turbine shaft bending test