CA2267922A1 - Method and apparatus for measuring gas velocity or other flow characteristic - Google Patents

Method and apparatus for measuring gas velocity or other flow characteristic Download PDF

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Publication number
CA2267922A1
CA2267922A1 CA002267922A CA2267922A CA2267922A1 CA 2267922 A1 CA2267922 A1 CA 2267922A1 CA 002267922 A CA002267922 A CA 002267922A CA 2267922 A CA2267922 A CA 2267922A CA 2267922 A1 CA2267922 A1 CA 2267922A1
Authority
CA
Canada
Prior art keywords
gas flow
measuring
gas velocity
flow characteristic
measuring gas
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
CA002267922A
Other languages
French (fr)
Other versions
CA2267922C (en
Inventor
Robert J. Platt
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.)
Compliance Instrument Inc
Original Assignee
Compliance Instrument Inc
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 Compliance Instrument Inc filed Critical Compliance Instrument Inc
Publication of CA2267922A1 publication Critical patent/CA2267922A1/en
Application granted granted Critical
Publication of CA2267922C publication Critical patent/CA2267922C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/363—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction with electrical or electro-mechanical indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/40—Details of construction of the flow constriction devices
    • G01F1/46—Pitot tubes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid
    • G01P5/16—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid using Pitot tubes, e.g. Machmeter
    • G01P5/165—Arrangements or constructions of Pitot tubes

Abstract

A method and apparatus for measuring gas flow in a conduit includes the steps of providing a plurality of gas flow measuring devices, positioning the gas flow measuring devices at a plurality of positions in the conduit, and substantially simultaneously measuring the gas flow at each position. A gas flow measuring apparatus includes a plurality of flow-measuring probes, each probe including one or more gas flow measuring devices, a separate pressure transducer connected to each probe, a data logger connected to the transducers, and a computer connected to the data logger.
CA002267922A 1998-04-02 1999-04-01 Method and apparatus for measuring gas velocity or other flow characteristic Expired - Lifetime CA2267922C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/054,296 1998-04-02
US09/054,296 US6189390B1 (en) 1998-04-02 1998-04-02 Method and apparatus for measuring gas velocity or other flow characteristic

Publications (2)

Publication Number Publication Date
CA2267922A1 true CA2267922A1 (en) 1999-10-02
CA2267922C CA2267922C (en) 2009-02-03

Family

ID=21990073

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002267922A Expired - Lifetime CA2267922C (en) 1998-04-02 1999-04-01 Method and apparatus for measuring gas velocity or other flow characteristic

Country Status (3)

Country Link
US (1) US6189390B1 (en)
EP (1) EP0947809A3 (en)
CA (1) CA2267922C (en)

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AU2002214888A1 (en) * 2000-11-16 2002-05-27 Leading Edge Robotics Inc. Method for automatic measurement of the velocity profile in a gas jet
EP1296118B1 (en) * 2001-09-19 2009-08-19 Ems-Patent Ag Device to measure gas consumption
EP1495290A4 (en) * 2002-03-25 2006-07-12 Fleming And Associates Inc Flow stabilizer for flow bench
EP1495300A4 (en) * 2002-03-26 2006-07-12 Fleming And Associates Inc Flow vector analyzer for flow bench
US6883389B2 (en) * 2003-08-21 2005-04-26 Eldridge Products, Inc. Flow averaging tube and method of using same
US7798017B2 (en) * 2005-07-14 2010-09-21 Systec Controls Mess-Und Regelungstechnik Gmbh Ram pressure probe having two ducts and a differential pressure increasing element
GB2452068B (en) * 2007-08-23 2012-03-21 Hussein Khimji Differential pressure anemometer
US7597009B1 (en) 2008-07-23 2009-10-06 Venturedyne, Ltd. Airflow sensor apparatus
US9587993B2 (en) * 2012-11-06 2017-03-07 Rec Silicon Inc Probe assembly for a fluid bed reactor
GB201503149D0 (en) 2015-02-25 2015-04-08 Dublin Inst Of Technology A multi-directional fluid velocity measurement device (FVMD)
CN108469283A (en) * 2018-05-24 2018-08-31 华北电力大学 The axial flow blower flow measurement device and method of principle are sensed based on hot line wind speed
CN110686736A (en) * 2019-11-14 2020-01-14 上海权宥环保科技有限公司 Pressure taking head of Pitotbar flow sensor

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US1645449A (en) * 1925-05-25 1927-10-11 Delbert W Proebstel Multiple pitot and piezometer tube for measuring the flow of water through closed conduits
US2714819A (en) * 1952-06-13 1955-08-09 George B Clark Multitube average velocity manometer
US3685355A (en) * 1970-04-13 1972-08-22 Air Monitor Corp Air monitoring system
US3831448A (en) 1971-09-15 1974-08-27 V Kors Manometer and pitot tube probe
US3748453A (en) 1972-02-24 1973-07-24 Corkle R Mc Meter rate computer
US4372171A (en) 1980-10-14 1983-02-08 Brandt Industries, Inc. Nozzle pitot averaging primary
GB2085597B (en) 1980-10-17 1985-01-30 Redland Automation Ltd Method and apparatus for detemining the mass flow of a fluid
US4462261A (en) 1982-04-27 1984-07-31 The Babcock & Wilcox Company Mass and velocity flowmeter
FR2528975B1 (en) * 1982-06-16 1986-04-11 Electricite De France DEVICE FOR MEASURING THE FLOW SPEED OF A FLUID IN THE ANNULAR SPACE OF A STEAM GENERATOR
US4668102A (en) 1985-05-08 1987-05-26 Honeywell Inc. Temperature and flow station
GB8517549D0 (en) 1985-07-11 1985-08-14 Smidth & Co As F L Gas monitoring equipment
US4911021A (en) 1986-04-18 1990-03-27 Shortridge Ernest R Air sampling apparatus
US4765751A (en) * 1987-06-29 1988-08-23 United Technologies Corporation Temperature and pressure probe
US4833917A (en) 1988-08-08 1989-05-30 Southern Company Services, Inc. Three-component velocity probe for large scale application
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US5241866A (en) * 1991-02-21 1993-09-07 The United States Of America Respresented By The Administrator Of National Aeronautics And Space Administration Probe shapes that measure time-averaged streamwise momentum and cross-stream turbulence intensity
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US5394759A (en) 1993-04-14 1995-03-07 United Sciences, Inc. Automated flow measuring device
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US5535634A (en) 1995-02-28 1996-07-16 United Sciences, Inc. Enhanced Type S pitot tube with reduced and symmetric response to pitch

Also Published As

Publication number Publication date
EP0947809A3 (en) 1999-12-08
CA2267922C (en) 2009-02-03
US6189390B1 (en) 2001-02-20
EP0947809A2 (en) 1999-10-06

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Effective date: 20190401