FR3130962B1 - air flow measuring device and method - Google Patents

air flow measuring device and method Download PDF

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Publication number
FR3130962B1
FR3130962B1 FR2113856A FR2113856A FR3130962B1 FR 3130962 B1 FR3130962 B1 FR 3130962B1 FR 2113856 A FR2113856 A FR 2113856A FR 2113856 A FR2113856 A FR 2113856A FR 3130962 B1 FR3130962 B1 FR 3130962B1
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FR
France
Prior art keywords
flow
measuring
air flow
inlet
measuring device
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.)
Active
Application number
FR2113856A
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French (fr)
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FR3130962A1 (en
Inventor
Eric Francois
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Ventilairsec SARL
Original Assignee
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Ventilairsec SARL
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Publication date
Application filed by Commissariat a lEnergie Atomique et aux Energies Alternatives CEA, Ventilairsec SARL filed Critical Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Priority to FR2113856A priority Critical patent/FR3130962B1/en
Publication of FR3130962A1 publication Critical patent/FR3130962A1/en
Application granted granted Critical
Publication of FR3130962B1 publication Critical patent/FR3130962B1/en
Active legal-status Critical Current
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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
    • G01F1/40—Details of construction of the flow constriction devices
    • G01F1/42—Orifices or nozzles

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

D ispositif de mesure de débit d’air et procédé Dispositif (1) de mesure de débit d’un écoulement (E) d’air dans un réseau de ventilation, comportant : Un conduit d’entrée (2) pour recevoir l’écoulement dont on cherche à mesurer le débit (qv),un conduit de sortie (6) par lequel l’écoulement quitte le dispositif, une chambre de compression/détente (4) reliant les conduits d’entrée et de sortie, présentant sur au moins une portion de sa longueur une section intérieure supérieure à celle du conduit d’entrée et à celle du conduit de sortie, un organe déprimogène (8) en aval de la chambre de compression/détente (4), deux prises de mesure (10) de pression différentielle disposées de part et d’autre de l’organe déprimogène (8). Figure pour l’abrégé : Fig. 1Device for measuring air flow and method Device (1) for measuring the flow of a flow (E) of air in a ventilation network, comprising: An inlet duct (2) for receiving the flow of which we seek to measure the flow rate (qv), an outlet conduit (6) through which the flow leaves the device, a compression/expansion chamber (4) connecting the inlet and outlet conduits, having on at least a portion of its length an interior section greater than that of the inlet conduit and that of the outlet conduit, a pressure-lowering member (8) downstream of the compression/expansion chamber (4), two measuring ports (10) differential pressure arranged on either side of the pressure-producing member (8). Figure for abstract: Fig. 1

FR2113856A 2021-12-17 2021-12-17 air flow measuring device and method Active FR3130962B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2113856A FR3130962B1 (en) 2021-12-17 2021-12-17 air flow measuring device and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2113856 2021-12-17
FR2113856A FR3130962B1 (en) 2021-12-17 2021-12-17 air flow measuring device and method

Publications (2)

Publication Number Publication Date
FR3130962A1 FR3130962A1 (en) 2023-06-23
FR3130962B1 true FR3130962B1 (en) 2024-07-05

Family

ID=80933158

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2113856A Active FR3130962B1 (en) 2021-12-17 2021-12-17 air flow measuring device and method

Country Status (1)

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FR (1) FR3130962B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4130017A (en) * 1977-11-01 1978-12-19 Westinghouse Electric Corp. Flow rate measuring device
DE3176090D1 (en) * 1981-06-29 1987-05-14 Badger Meter Inc Method and apparatus for measuring and controlling volumetric flow rate of gases in a line
CN200989802Y (en) * 2006-12-25 2007-12-12 成都发动机（集团）有限公司 Accurate measuring device for effective flow area of complex three-dimensional face hole
US10031005B2 (en) * 2012-09-25 2018-07-24 Mks Instruments, Inc. Method and apparatus for self verification of pressure-based mass flow controllers

Also Published As

Publication number Publication date
FR3130962A1 (en) 2023-06-23

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