Steam power plant comprises the steam turbine having a seal structure for a steam turbine utilizing a sealing liquid and vapor extraction system

摘要

The sealing arrangement (22) has a sealing portion (9) that is provided with a vapor steam exhaust portion (8). The fluid is acted upon an inner space from which a shaft (16) is emerged. An introduction portion is formed between the inner space and the vapor steam exhaust portion, for the supply of sealing fluid. A brush seal portion is provided with bristles made of metal, natural fiber and artificial fiber from aramid. Independent claims are included for the following: (1) a steam plant; and (2) a method for sealing shaft and housing of steam turbine.