公开(公告)号：WO2016053507A1

公开(公告)日：2016-04-07

申请号：PCT/US2015/046657

申请日：2015-08-25

Applicant: ROSEMOUNT INC.

Inventor： HOFFMAN, Michael, James ,  FADELL, Paul, Ryan ,  THOMPSON, Scott, Robert ,  CLINE, Vincent, Edward

IPC: G01L19/00 ,  G01L19/06

CPC classification number: G01L19/04 ,  G01L19/0007 ,  G01L19/0046 ,  G01L19/0681

Abstract: A remote seal assembly (100) for a process transmitter (128) includes a seal body (102) containing a cavity (110) sealed by a diaphragm (106). The seal body (102) configured to be mounted to a process element (104) containing a process fluid such that a first side of the diaphragm (106) is exposed to the process fluid. A capillary (112) contains a fill fluid that is in fluid communication with the cavity (110) and a second side of the diaphragm. A coupling (116) has a capillary recess and two cavities (120,122) separated by a second diaphragm (118). The capillary (112) extends through the capillary recess and connects to the coupling (116) such that the fill fluid in the capillary (112) is in fluid communication with one of the two cavities (120, 122) and the second diaphragm (118). A thermally conductive element (402) preferably extends continuously along the capillary from the seal body toward the coupling (116) and into the capillary recess without contacting the coupling (116).

Abstract translation: 用于过程变送器（128）的远程密封组件（100）包括密封体（102），其包含由隔膜（106）密封的空腔（110）。 密封体（102）被构造成安装到包含处理流体的处理元件（104），使得隔膜（106）的第一侧暴露于处理流体。 毛细管（112）包含与空腔（110）和隔膜的第二侧流体连通的填充流体。 联轴器（116）具有毛细管凹槽和由第二隔膜（118）分开的两个空腔（120,122）。 毛细管（112）延伸穿过毛细管凹槽并连接到联接器（116），使得毛细管（112）中的填充流体与两个空腔（120,122）和第二隔膜（118）中的一个流体连通 ）。 导热元件（402）优选地沿着毛细管从密封体朝向联接器（116）连续延伸并且进入毛细管凹槽，而不接触联接器（116）。