公开(公告)号：US4037784A

公开(公告)日：1977-07-26

申请号：US672670

申请日：1976-04-01

申请人： Louis J. Sabarly

发明人： Louis J. Sabarly

IPC分类号： F16T1/02 ,  F16T1/10 ,  F16T1/12

CPC分类号： F16T1/10 ,  Y10T137/3037 ,  Y10T137/304 ,  Y10T137/7881 ,  Y10T137/7895

摘要： A steam trap allowing the escape of condensate from a working fluid of steam comprises an escape valve mounted in a chamber in which the working fluid flows. The escape valve includes a valve seat member and a deformable metal diaphragm normally closing the steam trap and preventing the escape of steam. The diaphragm closes a housing in which a control fluid of water initially only partially fills the housing to which a vacuum is later applied. The housing bears along the periphery of the diaphragm where the diaphragm is supported by a shoulder in the valve seat member. The valve seat member includes a cylindrical central chamber radially inwardly of the valve seat and an annular chamber radially outwardly of the valve seat. The cylindrical chamber is larger in diameter than and upstream of an escape passageway for carrying away condensate also in the valve seat member. The annular chamber is in communication through a check valve and passages with the chamber in which the escape valve is mounted. Accordingly the pressure of the working fluid is exerted against the corresponding outer annular portion of the diaphragm in communication with the annular chamber and preponderates over the pressure in the enclosures when there is condensate in the chamber in which the steam is mounted.

摘要翻译： 允许冷凝物从蒸汽工作流体逸出的疏水阀包括安装在工作流体流动的室中的排放阀。 排气阀包括阀座构件和可变形金属隔膜，通常关闭蒸汽疏水阀并防止蒸汽逸出。 隔膜关闭壳体，其中水的控制流体最初仅部分地填充稍后施加真空的壳体。 壳体沿着膜片的周边承载，其中隔膜由阀座构件中的肩部支撑。 阀座构件包括位于阀座径向内侧的圆柱形中心室和位于阀座径向外侧的环形室。 圆柱形腔室的直径大于和排出通道的上游，也用于在阀座构件中运送冷凝物。 环形室通过止回阀和与其中安装有排泄阀的室连通。 因此，当在安装有蒸汽的室中存在冷凝物时，工作流体的压力被施加在与环形室连通的隔膜的相应的外环形部分上，并且优先于外壳中的压力。