期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：300
期号：4
页码：1-7
DOI：10.1088/1755-1315/300/4/042012
出版社：IOP Publishing
摘要：When the sub-critical 300MW steam turbine generator set of a power plant operates normally, the pressure of EH oil system gradually decreases when the B EH oil pump operates, then switching to A EH oil pump, the pressure of EH oil system rises and then gradually decreases to the protection action, and the unit shutdown. Through on-site inspection and inspection of maintenance records, it was found that the EH oil particles seriously exceeded the standard. The leakage fault of the absorbent in the regenerated filter element of the external oil filter was diagnosed and investigated. After replacing the EH oil pump inlet and outlet filters, the inlet filter of the main valve and the regulating valve oil motor control block, the EH oil system was flushed with a large flow of EH oil and replaced with a new EH oil, and other effective measures were taken to eliminate the potential safety hazards in equipment operation.
