CA2351645A1 - Apparatus and method for detection of a leak in a pump membrane - Google Patents

Apparatus and method for detection of a leak in a pump membrane Download PDF

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Publication number
CA2351645A1
CA2351645A1 CA002351645A CA2351645A CA2351645A1 CA 2351645 A1 CA2351645 A1 CA 2351645A1 CA 002351645 A CA002351645 A CA 002351645A CA 2351645 A CA2351645 A CA 2351645A CA 2351645 A1 CA2351645 A1 CA 2351645A1
Authority
CA
Canada
Prior art keywords
pressure
rate
fluid
chamber
detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002351645A
Other languages
French (fr)
Other versions
CA2351645C (en
Inventor
Larry Gray
Robert Bryant
Geoffrey Spencer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deka Products LP
Original Assignee
Deka Products Limited Partnership
Larry Gray
Robert Bryant
Geoffrey Spencer
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deka Products Limited Partnership, Larry Gray, Robert Bryant, Geoffrey Spencer filed Critical Deka Products Limited Partnership
Priority to CA2650669A priority Critical patent/CA2650669C/en
Publication of CA2351645A1 publication Critical patent/CA2351645A1/en
Application granted granted Critical
Publication of CA2351645C publication Critical patent/CA2351645C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00—Testing machines, pumps, or pumping installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0081—Special features systems, control, safety measures
    • F04B43/009—Special features systems, control, safety measures leakage control; pump systems with two flexible members; between the actuating element and the pumped fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Examining Or Testing Airtightness (AREA)
  • External Artificial Organs (AREA)
  • Reciprocating Pumps (AREA)

Abstract

Method for detection of fluid leakage through a membrane in a fluid flow control system. The fluid flow control system has a first chamber and a second chamber. A membrane is disposed between the first chamber and the second chamber. The second chamber has a connection to a pressure tank, the pressure tank has a fluid with a pressure, and the connection defines a fluid path. The method includes in a first step blocking the fluid path. The pressure of the fluid in the pressure tank is then adjusted. The rate of change of pressure is measured in the pressure tank. A blocked pressure rate is calculated. Next, the fluid path is unblocked. The rate of pressure change is measured within the pressure tank. An unblocked pressure rate is calculated.
Finally a leakage rate is calculated based on the blocked pressure rate and the unblocked pressure rate.
CA002351645A 1998-11-16 1999-11-15 Apparatus and method for detection of a leak in a pump membrane Expired - Lifetime CA2351645C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2650669A CA2650669C (en) 1998-11-16 1999-11-15 Apparatus and method for detection of a leak in a pump membrane

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/193,337 1998-11-16
US09/193,337 US6223130B1 (en) 1998-11-16 1998-11-16 Apparatus and method for detection of a leak in a membrane of a fluid flow control system
PCT/US1999/027101 WO2000029749A1 (en) 1998-11-16 1999-11-15 Apparatus and method for detection of a leak in a pump membrane

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2650669A Division CA2650669C (en) 1998-11-16 1999-11-15 Apparatus and method for detection of a leak in a pump membrane

Publications (2)

Publication Number Publication Date
CA2351645A1 true CA2351645A1 (en) 2000-05-25
CA2351645C CA2351645C (en) 2009-01-20

Family

ID=22713235

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002351645A Expired - Lifetime CA2351645C (en) 1998-11-16 1999-11-15 Apparatus and method for detection of a leak in a pump membrane
CA2650669A Expired - Lifetime CA2650669C (en) 1998-11-16 1999-11-15 Apparatus and method for detection of a leak in a pump membrane

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA2650669A Expired - Lifetime CA2650669C (en) 1998-11-16 1999-11-15 Apparatus and method for detection of a leak in a pump membrane

Country Status (7)

Country Link
US (1) US6223130B1 (en)
EP (1) EP1131559B1 (en)
JP (1) JP4434495B2 (en)
AU (1) AU2150400A (en)
CA (2) CA2351645C (en)
DE (1) DE69926258T2 (en)
WO (1) WO2000029749A1 (en)

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Also Published As

Publication number Publication date
US6223130B1 (en) 2001-04-24
JP4434495B2 (en) 2010-03-17
EP1131559A1 (en) 2001-09-12
CA2351645C (en) 2009-01-20
AU2150400A (en) 2000-06-05
CA2650669A1 (en) 2000-05-25
DE69926258T2 (en) 2006-05-24
EP1131559B1 (en) 2005-07-20
CA2650669C (en) 2013-05-07
JP2002530573A (en) 2002-09-17
WO2000029749A1 (en) 2000-05-25
DE69926258D1 (en) 2005-08-25

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