公开(公告)号：US20150322812A1

公开(公告)日：2015-11-12

申请号：US14652293

申请日：2013-12-17

Applicant: Mitsubishi Hitachi Power Systems, Ltd.

Inventor： Kensuke FUTAHASHI ,  Toshinari NISHIMURA ,  Katsuhisa HAMADA ,  Shoichi OKAWARA ,  Atsunori MORI ,  Tomoshige TAKATA ,  Keisuke MATSUYAMA ,  Takumi MATSUMURA ,  Tomoyuki ONISHI ,  Tomoshi YAMASAKI ,  Hiroshi SATO

IPC: F01D17/10 ,  F16K31/44

CPC classification number: F01D17/10 ,  F01D17/145 ,  F01D25/00 ,  F02C9/24 ,  F05D2220/31 ,  F05D2220/72 ,  F16K1/44 ,  F16K1/443 ,  F16K31/16 ,  F16K31/44 ,  Y10T137/87121 ,  Y10T137/87981 ,  Y10T137/8803

Abstract: Provided is a steam valve (1) equipped with: a stop valve (2) capable of stopping/releasing the flow of steam when driven so as to open/close; an governing valve (3) that is provided coaxially in the interior of the stop valve (2), and that controls the flow volume of the steam when driven to open/close in the same direction as the opening/closing of the stop valve (2); and a first guide part (11) that is provided between the stop valve (2) and the governing valve (3) so as to separate the stop valve and the governing valve in the radial direction, and that guides at least the governing valve in the opening/closing direction.

Abstract translation: 本发明提供一种蒸汽阀（1），其配备有能够在被驱动以便打开/关闭时停止/释放蒸汽流的截止阀（2） 在所述截止阀（2）的内部同轴设置的调节阀（3），并且当与所述截止阀的打开/关闭方向相同的方向被驱动打开/关闭时，控制所述蒸汽的流量（ 2）; 以及设置在所述截止阀（2）和所述调节阀（3）之间以沿所述径向分离所述截止阀和所述调节阀的第一引导部（11），并且至少将所述调节阀引导至 开/关方向。

公开(公告)号：US20170306793A1

公开(公告)日：2017-10-26

申请号：US15517784

申请日：2015-10-21

Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.

Inventor： Tomoshige TAKATA ,  Katsuhisa HAMADA ,  Kensuke FUTAHASHI

IPC: F01D25/10 ,  F01D17/08

CPC classification number: F01D25/10 ,  F01D17/085 ,  F01D17/145 ,  F16K1/34 ,  F16K1/54 ,  F16K47/08

Abstract: A main steam valve includes a cylindrical guide centered about an O-axis, a valve body disposed inside the guide so as to be slidable in the O-axis direction, a valve shaft on which the valve body moves in the O-axis direction between open and closed positions, and a casing having a flow path and a valve seat formed on an inner surface thereof. The flow path guides out a fluid guided into the casing from the inflow direction along the O-axis direction. The valve body abuts against the valve seat when the valve body is in the closed position. A valve chamber, formed in the casing, has a baffle plate provided in a region between an outer circumferential surface of the guide and an inner surface of the casing. The baffle plate interrupts swirling vortex flow with spiral vortex core extending in the circumferential direction of the O-axis of the guide.