SEALING MECHANISM USING ACCORDIONED BELLOWS, AND STEAM TURBINE PROVIDED WITH SAID SEALING MECHANISM
    1.
    发明公开
    SEALING MECHANISM USING ACCORDIONED BELLOWS, AND STEAM TURBINE PROVIDED WITH SAID SEALING MECHANISM 审中-公开
    SEAL机制手风琴的风箱和汽轮机与所述密封机构

    公开(公告)号:EP2511483A4

    公开(公告)日:2013-11-20

    申请号:EP10848467

    申请日:2010-10-29

    摘要: Providing a sealing mechanism provided with bellows-joints, the sealing mechanism being manufactured without surplus time and labor; thereby, the natural frequencies regarding the sealing mechanism surrounding a to-be-sealed shaft body are easily handled. Around a rotor shaft 26 of a steam turbine 10, between an outer turbine casing 12 and a gland 32, a sealing mechanism 40A is provided; the sealing mechanism is provided with an outer bellows-joint 46 and an inner bellows-joint 48, both the joints being arranged without mutual contact; the left and right ends of the outer bellows-joint 46 are gas-tightly connected to the outermost end periphery of the end flange 42 and the end flange 44, respectively; the left and right ends of the inner bellows-joint 48 are gas-tightly connected to the innermost end periphery of the end flange 42 and the end flange 44, respectively. Positioning both the bellows-joints can be easily performed.