发明名称 STEAM TURBINE DIAPHRAGM
摘要 PURPOSE:To absorb the difference in thermal expansion between an inner wheel and an outer wheel by providing a member, with the large coefficient of elasticity, on joining faces of two divided parts, upper and lower, of a steam turbine diaphragm. CONSTITUTION:Faces of upper and lower divided parts of an inner wheel 2b for a steam turbine diaphragm are brought in close contact with each other through clamping by means of a clamping bolt 13, while an elastic body 19 with the large coefficient of elasticity is provided in a gap 18 between the divided faces of an outer wheel 2a. The outer wheel 2a makes a thermal expansion in the circumferential direction larger than that of the inner ring 2b, however, an opening phenomenon of the inner wheel 2b starting from the outer wheel 2a is not produced due to contraction of the elastic body 19. Thus, the difference in thermal expansion between the inner and the outer wheels can be absorbed.
申请公布号 JPS59176402(A) 申请公布日期 1984.10.05
申请号 JP19830048888 申请日期 1983.03.25
申请人 HITACHI SEISAKUSHO KK 发明人 MATSUMOTO MINORU;KOIKE JIROU;IGARASHI MAKOTO
分类号 F01D9/04;F01D25/24 主分类号 F01D9/04
代理机构 代理人
主权项
地址