DE2414713A1 - Multiple range measurement diaphragm - designed for measurement of flow of liquids, steam and gases in both directions - Google Patents

Multiple range measurement diaphragm - designed for measurement of flow of liquids, steam and gases in both directions

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Publication number
DE2414713A1
DE2414713A1 DE2414713A DE2414713A DE2414713A1 DE 2414713 A1 DE2414713 A1 DE 2414713A1 DE 2414713 A DE2414713 A DE 2414713A DE 2414713 A DE2414713 A DE 2414713A DE 2414713 A1 DE2414713 A1 DE 2414713A1
Authority
DE
Germany
Prior art keywords
flow
measurement
measuring
diaphragm
directions
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.)
Pending
Application number
DE2414713A
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German (de)
Inventor
Hartmut Soehle
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE2414713A priority Critical patent/DE2414713A1/en
Publication of DE2414713A1 publication Critical patent/DE2414713A1/en
Pending 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

A test disc can move in a case. It has several holes of different diameter, so that greatly different flows can be measured. Different holes can be chamfered on opposite sides, so that the flow can be measured in both directions. A suitable drive moves the holes into a central position with respect to the pipe centre. Normally the diaphragm is round but rectangular, semi-circular and other geometrical forms are possible. The pipe lead connection is flanged into or welded to the main stream. The measuring diaphragm is rotatably fitted in the housing, and is placed in the desired position by the pneumatic, motor or other drive means.

Description

Mehrber@ichsmeßblende (Für Durchflußmessungen in v@rschiedenen Meßbereichen und entgegengesetzten Richtungen.) Die Erfindung bezieht sich auf Meßblenden, wie sie in der Technik bei der Durchflußmessung von flüssigen -,dampf- und gasförmigen Medien in Rohrleitungen, Verwendung finden.Mehrber @ ichsmeßblende (for flow measurements in different measuring ranges and opposite directions.) The invention relates to orifice plates, such as they are used in technology for measuring the flow of liquids, vapors and gases Media in pipelines, find use.

Herkömmliche Blenden sind durch Ihre Konstruktion auf einen Meßbereich und eine Durchfluß-Meßrichtung festgelegt,d.h.sie sind individuell für einen Rohrleitungsdurchmesser und ouf eine mittlere durchströmende Menge festgelegt. @eicht die Menge starker nach unten ab, tendiert der Differenzdruck gegen Full, sodaß eine hei3ung nicht mehr möglich ist. Steigt die Menge hingegen stark an, erhöht sich der Widerstand beträchtlich. Eine Durchflu@messung bei Umkehr der Strömungsrichtung ist bei herkömmlichen Blenden nicht möglich und mußte deshalb mittels @bsperrarmaturen und Umgehungen bewerk -stelligt werden.Due to their construction, conventional diaphragms are limited to a measuring range and a flow measuring direction are defined, i.e. they are individual for a pipe diameter and set to an average amount flowing through. @eight the crowd stronger downwards, the differential pressure tends towards Full, so that there is no heating more is possible. On the other hand, if the amount increases sharply, the resistance increases considerably. A flow measurement when the direction of flow is reversed is with conventional Orifices are not possible and therefore had to be carried out using shut-off valves and bypasses be accomplished.

Die Mehrbereichsmeßblende bietet jetzt die Möglichkeit in mehreren Meßbereichen und auch bei umgekehrter Dtrcmungsnich -tun zu messen. Anhand der Zeichnung soll die Erfindung erläutert werden.The multi-range orifice plate now offers the option of several Measuring ranges and also with reversed pressure do not measure. Based on the drawing the invention is to be explained.

Die Figur 1 zeigt als @eispiel eine runde Ausführung der Mehrbereichsmeßblende, es sind jedoch auch rechteckige, halb -runde und andere g@ometrische Formen möglich.As an example, FIG. 1 shows a round version of the multi-range measuring diaphragm, however, rectangular, semicircular and other geometrical shapes are also possible.

Die Mehrbereichsmeßblende besteht im wesentlichen aus einem gehause 1, der Meßscheibe 2, den Anschlüssen zur Abna@me des Dif@erenzdrucks 4 und einem antriebsaggregat 5 ( @tellmotor, pneumatischer Antrieb oder andere ) Das Gehäuse 1 wird mittels der Rohrleitungsanschlüsse 6 in die Rohrleitung eingeflanscht oder eingeschweißt. Die Meßscheibe 2 ist im Gehause 1 @rehbar gela@ert und wird über den Antrieb 5 in die jeweils erforderliche @tellung beet.The multi-range measuring diaphragm essentially consists of a housing 1, the measuring disc 2, the connections for accepting the differential pressure 4 and one Drive unit 5 (@tellmotor, pneumatic drive or other) The housing 1 is flanged into the pipeline by means of the pipeline connections 6 or shrink wrapped. The measuring disc 2 is stored so that it can be rotated in the housing 1 and is over the drive 5 in the required position.

Der entstehende Differenzdruck, vor und hinter der Meßscheibe 2 wird über die Meßleitungen 4 direkt oder über einen Transmitter, zum Anzeigegerät 7 geführt. Das Verlassen eines Meßbereichs im Anzeigegerät kann automatisch als Schaltimpuls für das Umschalten zu der nachst grösseren oder kleinern bohrung dienen. ble meßscheibe 2 besitzt auf einem Lochkreis mehrere Bohrungen 3 . Diese Bohrungen haben je nach den gewünschten ebereichen verschiedene Durchmesser und oder besitzen entgegengesetzte Fasen 3.1 und 3.2 sodaß eine ijessunt auch bei umgekehrter dtrömungsrichtung möglich ist. Durch enge Anordnung der Bohrungen 3 wird die strömung, beim wechsel von einer Bohrung zur anderen, nicht unterbrochen, wodurch Druckstössevermieden werden.The resulting differential pressure in front of and behind the measuring disk 2 is Via the measuring lines 4 directly or via a transmitter to the display device 7. Leaving a measuring range in the display device can automatically be used as a switching pulse serve to switch to the next larger or smaller bore. ble measuring disc 2 has several holes 3 on a bolt circle. These holes have depending on the desired diameter ranges and or have opposite diameters Chamfers 3.1 and 3.2 so that an ijessunt is also possible when the direction of flow is reversed is. Due to the close arrangement of the holes 3, the flow, when changing from one Bore to the other, not interrupted, so that pressure surges are avoided.

Die Bohrungen 3 liegen auf einem Lochkreis, der den Hohrleitungsmittelpunkt tangiert, sodaß jede Bohrung in eine zentrale stellung zum Rohr beweg t werden kann. Die Fixierung einer gewünschten Bohrung im Rohrzentrum kann über induktive, mechanische oder sonstige Meßgeber, die den Antrieb 5 ansteuern, erfolgen.The holes 3 lie on a circle of holes, which is the center point of the Hohrleitung tangents, so that each hole can be moved to a central position relative to the pipe. The fixation of a desired hole in the pipe center can be done by inductive, mechanical or other sensors that control the drive 5, take place.

Da die Meßscheibe 2 nur geringen Belastun--en ausgesetzt ist, kann sie aus nichtmetallischen Werkstoffen bestehen.Since the measuring disk 2 is only exposed to low loads, it can they are made of non-metallic materials.

Zur Vermeidung von Fehlströmungen und somit Meßfehlern, kann zwischen Meßscheibe 2 und Gehäuse 1 Dichtungsmaterial vorgesehen werden.To avoid incorrect flows and thus measurement errors, between Measuring disc 2 and housing 1 sealing material are provided.

4 Patentansprüche 1 Figur4 claims 1 figure

Claims (4)

Patentansprüche 1. Mehrbereichsmeßblende zur Durchflußmessung von flüssigen dampf- und gasförmigen Medien , dadurch gakennzeichnet, daß eine Meßscheibe (2) in einem Gehäuse (1) beweglich geführt wird.Claims 1. Multi-range orifice plate for flow measurement of liquid vapor and gaseous media, characterized in that a measuring disc (2) is movably guided in a housing (1). 2. Mehrbereichsmeßblende nach Anspruch 1 , dadurch gekennzeichnet , daß die Meßscheibe (2) mehrere Bohrungen (3) mit unterschiedlicben Durchmessern besitzt , sodaß extrem voneinander abweichende Mengen gemessen werden können.2. Multi-range measuring diaphragm according to claim 1, characterized in that that the measuring disc (2) has several bores (3) with different diameters so that extremely different amounts can be measured. 3. Mehrbereicbsmeßblende nach Anspruch 2 , dadurch gekennzeichnet , daß die vasen der bohrungen (3.1 ; 3.2) entgegengesetzt ausgeführt sein können , sodaß der Burchfluß auch bei entgegengesetzter Strömungsrichtung gemessen werden kann.3. Mehrbereicbsmeßblende according to claim 2, characterized that the vases of the bores (3.1; 3.2) can be designed in opposite directions so that the flow can also be measured with the opposite flow direction can. 4. Mehrbereichsmeßblende nach Anspruch 1 bis 3 , dadurch gekennzeichnet , daß die Bohrungen (3) durch einen geeigneten Antrieb (5) in eine zentrale Lage zum Rohrleitungsmittelpunkt bewegt werden können.4. Multi-range measuring diaphragm according to claim 1 to 3, characterized in that that the bores (3) by a suitable drive (5) in a central position can be moved to the center of the pipeline. L e e r s e i t eL e r s e i t e
DE2414713A 1974-03-27 1974-03-27 Multiple range measurement diaphragm - designed for measurement of flow of liquids, steam and gases in both directions Pending DE2414713A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2414713A DE2414713A1 (en) 1974-03-27 1974-03-27 Multiple range measurement diaphragm - designed for measurement of flow of liquids, steam and gases in both directions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2414713A DE2414713A1 (en) 1974-03-27 1974-03-27 Multiple range measurement diaphragm - designed for measurement of flow of liquids, steam and gases in both directions

Publications (1)

Publication Number Publication Date
DE2414713A1 true DE2414713A1 (en) 1975-10-16

Family

ID=5911290

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DE2414713A Pending DE2414713A1 (en) 1974-03-27 1974-03-27 Multiple range measurement diaphragm - designed for measurement of flow of liquids, steam and gases in both directions

Country Status (1)

Country Link
DE (1) DE2414713A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2551836A1 (en) * 1983-09-14 1985-03-15 Ind Valves Co Sa Device with multiple functions for exploiting industrial pipework
FR2617961A1 (en) * 1987-07-09 1989-01-13 Elf Aquitaine DEVICE FOR MEASURING FLOW RATE OF WIDE RANGE FLUIDS
EP0392272A1 (en) * 1989-04-03 1990-10-17 Landis & Gyr Technology Innovation AG Measuring and/or controlling device for fluid flow and/or quantities of heat
EP0392271A1 (en) * 1989-04-03 1990-10-17 Landis & Gyr Business Support AG Measuring device for fluid flow and/or quantities of heat
IT201600129636A1 (en) * 2016-12-21 2018-06-21 Fimcim Spa ASSEMBLY INSTALLABLE IN A AIR-CONDITIONING AND / OR HEATING SYSTEM, AIR-CONDITIONING AND / OR HEATING SYSTEM INCLUDING SUCH ASSEMBLY AND METHOD OF CHECKING SUCH AS
EP3339814A1 (en) * 2016-12-21 2018-06-27 Fimcim S.P.A. Assembly installable in an air conditioning and/or heating system, air conditioning and/or heating system comprising the assembly and method of controlling the assembly
US10712221B2 (en) 2016-12-21 2020-07-14 Fimcim S.P.A. Differential pressure meter

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2551836A1 (en) * 1983-09-14 1985-03-15 Ind Valves Co Sa Device with multiple functions for exploiting industrial pipework
FR2617961A1 (en) * 1987-07-09 1989-01-13 Elf Aquitaine DEVICE FOR MEASURING FLOW RATE OF WIDE RANGE FLUIDS
EP0392272A1 (en) * 1989-04-03 1990-10-17 Landis & Gyr Technology Innovation AG Measuring and/or controlling device for fluid flow and/or quantities of heat
EP0392271A1 (en) * 1989-04-03 1990-10-17 Landis & Gyr Business Support AG Measuring device for fluid flow and/or quantities of heat
IT201600129636A1 (en) * 2016-12-21 2018-06-21 Fimcim Spa ASSEMBLY INSTALLABLE IN A AIR-CONDITIONING AND / OR HEATING SYSTEM, AIR-CONDITIONING AND / OR HEATING SYSTEM INCLUDING SUCH ASSEMBLY AND METHOD OF CHECKING SUCH AS
EP3339814A1 (en) * 2016-12-21 2018-06-27 Fimcim S.P.A. Assembly installable in an air conditioning and/or heating system, air conditioning and/or heating system comprising the assembly and method of controlling the assembly
US10605638B2 (en) 2016-12-21 2020-03-31 Fimcim S.P.A. Assembly installable in an air conditioning and/or heating system, air conditioning and/or heating system comprising the assembly and method of controlling the assembly
US10712221B2 (en) 2016-12-21 2020-07-14 Fimcim S.P.A. Differential pressure meter

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