公开(公告)号：US5495768A

公开(公告)日：1996-03-05

申请号：US277710

申请日：1994-07-20

申请人： Bennett L. Louwagie ,  Steven M. Lemire ,  Craig A. Everett

发明人： Bennett L. Louwagie ,  Steven M. Lemire ,  Craig A. Everett

IPC分类号： G01L19/06 ,  G01L7/08 ,  G01L19/00 ,  G01L7/00

CPC分类号： G01L19/0046 ,  G01L19/0645 ,  G01L19/086

摘要： An isolator diaphragm is formed and connected to a support member so it will withstand periodic high pressure cleaning. Such periodic cleaning includes use of heated, concentrated cleaning solutions flowing under high pressure from a nozzle which moves rapidly over segments of an exposed surface of the isolator diaphragm. The present invention prevents isolator diaphragm failure precipitated by the substantially incompressible isolator fluid driven toward the perimeter of the diaphragm during cleaning operations. Such cleaning operations generate a separating force between the isolator diaphragm and diaphragm support. The isolator diaphragm has a peripheral wall portion bonded to a planar support surface and is formed to have an offset center region. The peripheral wall and center region are joined by a conical, inclined wall bounding the center portion. The support member has a correspondingly shaped recess with an inclined annular wall that supports the conical wall of the diaphragm. The primary diaphragm flexure point of the center portion of the diaphragm is moved away from the perimeter of the diaphragm, to adjacent the junction of the inclined wall and the center region. The bonding area is not subjected to a high separating force due to the movement in the incompressible fill fluid to a localized region of the diaphragm adjacent a seal or junction line.

摘要翻译： 隔离膜隔膜形成并连接到支撑件上，从而能够承受周期性的高压清洗。 这种定期清洁包括使用在高压下流动的加热浓缩的清洁溶液，该清洁溶液快速移动到隔离隔膜的暴露表面的段上。 本发明防止在清洁操作期间由隔膜隔膜驱动的基本上不可压缩的隔离器流体沉积的隔离膜隔膜故障。 这种清洁操作在隔离膜和隔膜支撑件之间产生分离力。 隔离膜具有结合到平面支撑表面的周壁部分，并且形成为具有偏移中心区域。 周边壁和中心区域通过围绕中心部分的锥形倾斜壁连接。 支撑构件具有相应形状的凹部，其具有支撑隔膜的锥形壁的倾斜环形壁。 隔膜中心部分的主要隔膜弯曲点远离隔膜的周边移动到靠近倾斜壁和中心区域的接合处。 由于在不可压缩的填充流体中移动到邻近密封或连接线的隔膜的局部区域，接合区域不会受到高的分离力。