公开(公告)号：AT142896T

公开(公告)日：1996-10-15

申请号：AT93103753

申请日：1993-03-09

Applicant: PALL CORP

Inventor： RANDHAHN HORST DR ,  VOGELMANN HARTMUT DR ,  MEISTER MICHAEL

IPC: B01D29/05 ,  B01D61/20 ,  B01D63/08 ,  B01D63/16 ,  B01D65/00 ,  B01D65/08

Abstract: An apparatus and a method for separating a suspension into a filtrate and a concentrate. There is provided a separation means and a method in which partial filtrates are collected as a plurality of filtrate streams in a plurality of parallel filtrate chambers. The filtrate chamber is divided into several partial filtrate chambers, each of which is connected to a different portion of a partially permeable wall or membrane and receives that part of the filtrate passing therethrough. Also, a relative motion is induced between the suspension and the wall or membrane by a rotating part, thus preventing clogging of the membrane. Furthermore, sensors are provided in the partial filtrate chambers, permitting more information about a dynamic separation process to be obtained.

公开(公告)号：DE4209519C2

公开(公告)日：1995-06-29

申请号：DE4209519

申请日：1992-03-24

Applicant: PALL CORP

Inventor： RANDHAHN HORST DR ,  VOGELMANN HARTMUT DR

IPC: B01D35/143 ,  B01D29/11 ,  B01D29/50 ,  B01D29/52 ,  B01D35/00 ,  B01D37/04 ,  G01N15/08 ,  B01D27/10

Abstract: A method of testing the integrity of a filter element in a falter assembly includes a) wetting filter material of a filter element having an inlet side and an outlet side connected to an outlet conduit, b) subjecting the inlet side of the filter element to a gas pressure, c) measuring the pressure in the outlet conduit as a function of time, with a downstream outlet valve for the outlet conduit being closed, and d) determining whether the pressure measured at a preselected time exceeds a reference pressure by a predetermined amount, or determining whether the time required to reach a preselected pressure is shorter than a reference time by a predetermined amount.

公开(公告)号：DE69304744D1

公开(公告)日：1996-10-24

申请号：DE69304744

申请日：1993-03-09

Applicant: PALL CORP

Inventor： RANDHAHN HORST DR ,  VOGELMANN HARTMUT DR ,  MEISTER MICHAEL

IPC: B01D29/05 ,  B01D61/20 ,  B01D63/08 ,  B01D63/16 ,  B01D65/00 ,  B01D65/08

Abstract: An apparatus and a method for separating a suspension into a filtrate and a concentrate. There is provided a separation means and a method in which partial filtrates are collected as a plurality of filtrate streams in a plurality of parallel filtrate chambers. The filtrate chamber is divided into several partial filtrate chambers, each of which is connected to a different portion of a partially permeable wall or membrane and receives that part of the filtrate passing therethrough. Also, a relative motion is induced between the suspension and the wall or membrane by a rotating part, thus preventing clogging of the membrane. Furthermore, sensors are provided in the partial filtrate chambers, permitting more information about a dynamic separation process to be obtained.

公开(公告)号：DE69304744T2

公开(公告)日：1997-01-30

申请号：DE69304744

申请日：1993-03-09

Applicant: PALL CORP

Inventor： RANDHAHN HORST DR ,  VOGELMANN HARTMUT DR ,  MEISTER MICHAEL

IPC: B01D29/05 ,  B01D61/20 ,  B01D63/08 ,  B01D63/16 ,  B01D65/00 ,  B01D65/08

Abstract: An apparatus and a method for separating a suspension into a filtrate and a concentrate. There is provided a separation means and a method in which partial filtrates are collected as a plurality of filtrate streams in a plurality of parallel filtrate chambers. The filtrate chamber is divided into several partial filtrate chambers, each of which is connected to a different portion of a partially permeable wall or membrane and receives that part of the filtrate passing therethrough. Also, a relative motion is induced between the suspension and the wall or membrane by a rotating part, thus preventing clogging of the membrane. Furthermore, sensors are provided in the partial filtrate chambers, permitting more information about a dynamic separation process to be obtained.

公开(公告)号：DE4209519A1

公开(公告)日：1993-09-30

申请号：DE4209519

申请日：1992-03-24

Applicant: PALL CORP

Inventor： RANDHAHN HORST DR ,  VOGELMANN HARTMUT DR

IPC: B01D35/143 ,  B01D29/11 ,  B01D29/50 ,  B01D29/52 ,  B01D35/00 ,  B01D37/04 ,  G01N15/08

Abstract: A method of testing the integrity of at least one filter element in a filter assembly, the filter element or elements being connected to a common outlet conduit, is described, wherein the method comprises the steps: a) wetting the filter material of said at least one filter element, b) subjecting the inlet side of the filter element having wetted filter material to a gas pressure, c) measuring the pressure (Pi) in the outlet conduit as a function of time, with a downstream outlet valve being closed, d) determining whether the pressure measured at a preselected time exceeds a reference pressure by a predetermined amount, or determining whether the time required to reach a preselected pressure is shorter than a reference time by a predetermined amount.