利用湿蒸汽冲洗汽轮机通流部分可溶性盐垢

摘要

Through analysis of the causes of high turbine flow resistance and high tem-perature of thrust bearing shoes, it was found that the main cause had been serious scaling in the flow section, which reduced the circulation area and in turn decreased the work ca-pacity of steam turbine preventing the unit from boosting to rated load. The causes of salt deposit in the flow section were also analyzed and studied and a flushing plan was drawn up, to reduce the resistance in the unit flow passages, lower the temperature of the thrust shoes and improve the safety and economy of the generating unit.%通过对汽轮机组通流部分阻力大、推力瓦温度高的原因进行分析，得出其主要原因为通流部分结垢严重，流通面积缩小，导致汽轮机做功能力下降，使机组无法带至额定负荷；并对通流部分结垢的原因进行分析、研究，作出冲洗方案，以求降低机组的通流部分阻力、推力瓦温度，提高机组的安全、经济性。