WO2009077170A1 - Capteur de débit avec une partie déviable s'étendant à l'intérieur d'un conduit - Google Patents

Capteur de débit avec une partie déviable s'étendant à l'intérieur d'un conduit Download PDF

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Publication number
WO2009077170A1
WO2009077170A1 PCT/EP2008/010750 EP2008010750W WO2009077170A1 WO 2009077170 A1 WO2009077170 A1 WO 2009077170A1 EP 2008010750 W EP2008010750 W EP 2008010750W WO 2009077170 A1 WO2009077170 A1 WO 2009077170A1
Authority
WO
WIPO (PCT)
Prior art keywords
channel
deflectable part
flow
deflectable
coil
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.)
Ceased
Application number
PCT/EP2008/010750
Other languages
German (de)
English (en)
Other versions
WO2009077170A8 (fr
Inventor
Edgar Budzynski
Thomas Kettner
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.)
Wilo SE
Original Assignee
Wilo AG
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 Wilo AG filed Critical Wilo AG
Publication of WO2009077170A1 publication Critical patent/WO2009077170A1/fr
Publication of WO2009077170A8 publication Critical patent/WO2009077170A8/fr
Anticipated expiration legal-status Critical
Ceased 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
    • G01F1/20—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 detection of dynamic effects of the flow
    • G01F1/28—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 detection of dynamic effects of the flow by drag-force, e.g. vane type or impact flowmeter
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/18—Supports or connecting means for meters

Definitions

  • the invention relates to a device for measuring and / or monitoring the flow of a fluid through a channel with a extending into the channel deflectable part, the deflection indicates the flow.
  • the object of the invention is to provide a device of the type mentioned, which does not require a second sensor, especially for pumps with a simple design and high accuracy. Furthermore, the device should be usable even with small pumps. It would also be advantageous if the device has another function in addition to the measuring function.
  • Such a device can be used with simple manufacture and construction in pumps of various sizes, especially in very small pumps, without the need for a second sensor.
  • the measurement accuracy is high and a separate check valve or a separate non-return valve is not required, but the inventive device has the additional function of a check valve.
  • a particularly safe operation with high accuracy is achieved when between the free, reaching into the channel end of the deflectable part and its clamped end at least one measuring coil is arranged, whose inductance is variable by the distance of the part of the coil. It is advantageous if, in addition to the measuring coil, a second coil is arranged as a reference coil in the fixed foot region of the deflectable part.
  • the deflectable part forms with its free end a circular region with which the flow opening of the channel in the non-deflected state can be concealed.
  • a former responsiveness of the measuring device and a higher accuracy of measurement are achieved when the channel opening in the region of the deflectable part has a smaller flow cross section than the cross section of the remaining channel.
  • a simple and secure attachment of the deflectable part is created when the deflectable part is partially cylindrically shaped in its foot region, wherein the cylinder axis is parallel to the longitudinal extent of the deflectable part. It is also advantageous if the deflectable part is formed by a metal, non-magnetizable leaf spring.
  • the device is easy to install and interchangeable, when the deflectable part and the measuring coil (s) are arranged in a particular cylindrical plug-in part, which is releasably inserted transversely to the flow direction of the fluid in the channel wall.
  • Fig. 2 shows a device in which the flow opening is formed by the channel.
  • a pipe section 1 forms a flow channel 2, wherein in the exemplary embodiment both pipe ends each have an external thread 3.
  • the pipe section 1 can also be the inlet or outlet of a pump. Through the pipe section flows in the direction of arrow 4, a fluid in particular a liquid.
  • the wall of the pipe section 1 forms a bore 6 which is arranged transversely to the flow direction and opens into the channel 2.
  • a male part 7 which is fastened via a fixing pin 8 or a clip part comprehensive clip releasably in the socket 5.
  • the inner end of the plug-in part 7 passes through the channel 2 so far that this inner region of the plug-in part 7 forms a narrowing flow opening 9 whose cross-section decreases in the direction of flow.
  • the flow opening 9 is conically shaped and is coaxial with the axis 10 of the channel 2.
  • the narrowing flow opening 9 but also from the inner wall of the channel 2 may be formed, as shown in FIG. 2.
  • the point 9a of the smallest cross section of the flow opening 9 is closed by a deflectable part 1 1, as long as the device or the channel 2 is not exposed to a flow.
  • the deflectable part 11 is preferably formed by a metal, non-magnetic leaf spring, which is clamped with its foot in the male part 7 or screwed fixed and can be bent by a flow in a position, as this represents the bent position 11 b dashed. In this position, the movable portion of the part 1 1 is lifted from the opening 9a.
  • the range of movement of the part 11 is indicated by A.
  • the degree of lifting of the part 1 1 is detected inductively by a measuring coil 12.
  • the measuring coil 12 is arranged in a region in the plug-in part 7, which lies close to the wall of the channel 2.
  • a second measuring coil 13 is located near the part 11 as a reference coil, whereby the measuring accuracy is increased.
  • the part 1 1 In the unextended position, the part 1 1 is located at the edge of the opening 9a and thus closes this opening and the channel 2, so that in this position a reflux in the channel 2 is reliably prevented.
  • the deflectable part 1 1 thus also forms the valve actuator of a check valve, wherein preferably the opening 9 a covering area of the part 11 and thus its free end is circular in order to close the opening 9 a safe.
  • the deflectable part 11 is teilzylind ⁇ sch shaped, wherein the cylinder axis is parallel or coaxial with the axis of the nozzle 5 This allows a simple and secure attachment of the part 11 in the male part 7th
  • the male part 7 is preferably cylindrical, so that it can be inserted and adjusted in the cylindrical opening of the nozzle 5
  • a Wandformiges sword 14 diametrically fixed in channel 2 diametrically coaxial and thus in the flow direction to achieve a Gleichungs Eisennchtung Instead of a sword 14 but two or more swords parallel to each other and
  • the flow opening 9 and the part 1 1 facing edge of the sword 14 or the swords has a curved shape corresponding to the curved shape of the part 1 1 in a bent position 11 b, so that the sword or swords a Make limit for the maximum deflection of the part 11

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
  • Measuring Volume Flow (AREA)
  • Check Valves (AREA)

Abstract

L'invention concerne un dispositif pour mesurer et/ou surveiller le débit de passage d'un fluide dans un conduit, avec une partie déviable qui s'étend à l'intérieur du conduit et dont la déviation indique le débit. Dans l'état non dévié, la partie déviable ferme entièrement le conduit et constitue l'organe de réglage d'un clapet antiretour.
PCT/EP2008/010750 2007-12-18 2008-12-17 Capteur de débit avec une partie déviable s'étendant à l'intérieur d'un conduit Ceased WO2009077170A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007061560A DE102007061560A1 (de) 2007-12-18 2007-12-18 Durchflusssensor
DE102007061560.6 2007-12-18

Publications (2)

Publication Number Publication Date
WO2009077170A1 true WO2009077170A1 (fr) 2009-06-25
WO2009077170A8 WO2009077170A8 (fr) 2009-12-30

Family

ID=40379721

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/010750 Ceased WO2009077170A1 (fr) 2007-12-18 2008-12-17 Capteur de débit avec une partie déviable s'étendant à l'intérieur d'un conduit

Country Status (2)

Country Link
DE (1) DE102007061560A1 (fr)
WO (1) WO2009077170A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010024690A1 (de) * 2010-06-23 2011-12-29 Mahle International Gmbh Fluidstrommesseinrichtung, Ventileinrichtung und Messverfahren
CN104677622B (zh) * 2015-03-17 2017-05-03 上海华瑞气雾剂有限公司 一种触动器检测机
DE102019008890A1 (de) * 2019-12-19 2021-06-24 Diehl Metering Gmbh Durchflusszähler

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19743040A1 (de) * 1997-09-29 1999-04-22 Henke Sass Wolf Gmbh Vorrichtung zum Bestimmen der Durchflußmenge eines Fluids
US6212958B1 (en) * 1998-07-16 2001-04-10 Lincoln Industrial Corporation Flow sensing assembly and method
US20030066340A1 (en) * 2001-10-09 2003-04-10 Brian Edward Hassenflug Conductive fluid leak detection system & automatic shut off valve
DE102005001171A1 (de) * 2005-01-10 2006-07-20 Honsberg & Co Kg Durchflusssensor mit dynamischer Blende
DE102006023551A1 (de) * 2006-05-09 2007-11-22 SIKA Dr. Siebert & Kühn GmbH & Co. KG Vorrichtung zur Überwachung des Durchflusses eines Mediums in einer Durchflusseinrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4599907A (en) 1985-04-19 1986-07-15 Kraus Robert A Mass-flow sensing transducer
JPS62165121A (ja) * 1986-01-16 1987-07-21 Cosmo Keiki:Kk 流量変換装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19743040A1 (de) * 1997-09-29 1999-04-22 Henke Sass Wolf Gmbh Vorrichtung zum Bestimmen der Durchflußmenge eines Fluids
US6212958B1 (en) * 1998-07-16 2001-04-10 Lincoln Industrial Corporation Flow sensing assembly and method
US20030066340A1 (en) * 2001-10-09 2003-04-10 Brian Edward Hassenflug Conductive fluid leak detection system & automatic shut off valve
DE102005001171A1 (de) * 2005-01-10 2006-07-20 Honsberg & Co Kg Durchflusssensor mit dynamischer Blende
DE102006023551A1 (de) * 2006-05-09 2007-11-22 SIKA Dr. Siebert & Kühn GmbH & Co. KG Vorrichtung zur Überwachung des Durchflusses eines Mediums in einer Durchflusseinrichtung

Also Published As

Publication number Publication date
DE102007061560A1 (de) 2009-06-25
WO2009077170A8 (fr) 2009-12-30

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