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1. 发明公开

KR1020040021538A 증기 공급용 밸브 有权
标题翻译：蒸汽供应阀
公开(公告)号：KR1020040021538A
公开(公告)日：2004-03-10
申请号：KR1020030060135
申请日：2003-08-29
申请人： 제너럴 일렉트릭 캄파니
发明人： 스틴버그존하워드 , 클락로저베네트 , 포테오우스니콜라스둔다스
IPC分类号： F01L35/02
CPC分类号： F16K1/44 , F01D17/145 , F05D2220/31 , F16K1/08 , F16K25/04 , Y10T137/86976 , Y10T137/86984 , Y10T137/88046
摘要： PURPOSE: A steam supplying valve is provided to secure the combination of a control valve and a stop valve with optimal flow characteristic by mounting a bleed opening and a balance chamber for quickly closing the control valve. CONSTITUTION: A steam valve has a fast-acting stop valve(19) and a control valve(17) acting against a valve seat(21) in a steam flow passage in a closed position. An outlet passage below the valve seat has transition walls for supplying a smooth and continuous flow passing the seat into an outlet and accordingly the losses of head are reduced. An annular screen(54) near the valve has a support structure recessed in the walls of the inlet to reduce flow blockage and vortex formation. A balance chamber(60) disposed above the control valve has a bleed hole(62) for equalizing steam pressure in the balance chamber and steam valve, inhibits depressurization of the balance chamber, and facilitates fast closing of the control valve. Buttress threads(66) interconnect a control valve stem and a control valve head to preclude binding of the parts caused by oxide buildup.
摘要翻译：目的：提供蒸汽供应阀，通过安装排气口和平衡室来快速关闭控制阀，以确保具有最佳流量特性的控制阀和截止阀的组合。构成：蒸气阀具有快门截止阀（19）和控制阀（17），该控制阀（17）在处于关闭位置的蒸汽流动通道中作用在阀座（21）上。在阀座下方的出口通道具有过渡壁，用于提供通过座椅进入出口的平滑且连续的流动，因此头部的损失减小。在阀附近的环形筛（54）具有凹入入口壁的支撑结构，以减少流动阻塞和涡流形成。设置在控制阀上方的平衡室（60）具有用于使平衡室和蒸汽阀中的蒸汽压力均衡的排放孔（62），抑制了平衡室的减压，并且便于控制阀的快速关闭。支撑螺纹（66）将控制阀杆和控制阀头相互连接，以防止由氧化物积聚引起的部件的结合。

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