DE891753C - Flow meter - Google Patents

Flow meter

Info

Publication number
DE891753C
DE891753C DER2821D DER0002821D DE891753C DE 891753 C DE891753 C DE 891753C DE R2821 D DER2821 D DE R2821D DE R0002821 D DER0002821 D DE R0002821D DE 891753 C DE891753 C DE 891753C
Authority
DE
Germany
Prior art keywords
flow meter
meter
flow rate
pressure
differential pressure
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.)
Expired
Application number
DER2821D
Other languages
German (de)
Inventor
Carl Dr-Ing Hardebeck
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.)
Rota App & Maschb Dr Hennig
Original Assignee
Rota App & Maschb Dr Hennig
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 Rota App & Maschb Dr Hennig filed Critical Rota App & Maschb Dr Hennig
Priority to DER2821D priority Critical patent/DE891753C/en
Application granted granted Critical
Publication of DE891753C publication Critical patent/DE891753C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F5/00—Measuring a proportion of the volume flow
    • G01F5/005—Measuring a proportion of the volume flow by measuring pressure or differential pressure, created by the use of flow constriction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F5/00—Measuring a proportion of the volume flow

Description

Die Erfindung betrifft weitere Ausführungs~ formen und Anwendungen der Erfindung gemäß Patent 868219 und besteht im wesentlichen in der Verwendung einer Düse in Verbindung mit einem Differenzdruckmesser als Strömungsmesser zur Anzeige bzw. Registrierung oder Regelung der strömenden Mengen, bezogen auf Normalzustand, wobei der Druckabfall in der Düse im Verhältnis zum Druckabfall in der Kapillare klein ist. The invention relates to further embodiments and applications of the invention of patent 868219 and consists essentially in the use a nozzle in connection with a differential pressure meter as a flow meter for Display or registration or regulation of the flowing quantities, based on the normal state, where the pressure drop across the nozzle in relation to the pressure drop across the capillary is small.

In der Zeichnung sind die neuen Ausführungsformen schemtisch dargestellt. In the drawing, the new embodiments are shown schematically.

Abb. 1 zeigt eine Hauptleitung a, in deren Umleitung die Kapillare b od. dgl. in Verbindung mit einer Düse c eingebaut ist; der Differenzdruck an der Düse wird in bekannter Weise mittels einer Ringwaage d ermittelt; Abb. 2 zeigt eine ähnliche Ausführung, jedoch mit Registriervorrichtung e zur Registrierung der auf Normalzustand bezogenen Gasmenge; Abb. 3 zeigt eine Anordnung, bei der der Differenzdrückmesser f mit zwei elektrischen Kontakten versehen ist, die bei Über- oder Unterschreitung der eingestellten Menge auf ein Schaltwerk f einwirken, das seinerseits eine in der Hauptleitung befindliche Drossel h automatisch stets so einstellt, daß der Durchfluß durch die Düse und damit der auf Normalzustand bezogene Gesamtdurchfluß unbeschadet der in der Leitung vorkommenden Druckschwankungen konstant blebt. Die Kapillare b ist hier beispielsweise als Kapillare mit ringsförmigem Querschnitt ausgebildet. Die verstellbare Drossel i dient zur Einstellung der zu regelnden Menge. Fig. 1 shows a main line a, in whose diversion the capillary b or the like is installed in connection with a nozzle c; the differential pressure at the Nozzle is determined in a known manner by means of a ring balance d; Fig. 2 shows a Similar design, but with registration device e for registering the on Normal state related amount of gas; Fig. 3 shows an arrangement in which the differential pressure meter f is provided with two electrical contacts, which are activated when the value is exceeded or not reached of the set amount act on a switching mechanism f, which in turn has an in the main line throttle h automatically adjusts so that the flow through the nozzle and thus the total flow related to the normal state without prejudice the pressure fluctuations occurring in the line remain constant. The capillary b is designed here, for example, as a capillary with a ring-shaped cross section. The adjustable throttle i is used to set the amount to be regulated.

Statt der Düse mit Differenzdruckmesser kann näturlich als Steuerorgan auch der in Abb. 1 des Patents 868 219 dargestellte Schwimmermesser in im übrigen bekannter Weise dienen. Instead of the nozzle with a differential pressure meter can of course be used as a control element also the float knife shown in Fig. 1 of the patent 868 219 in the rest serve in a known way.

Claims (2)

PATENTANSPRÜCHE: 1. Teilstromdurchflußmesser mit in der Hauptleitung befindlicher Drossel und im Nebenschluß dazu eingebautein Strömungsmesser gemäß Patent 868219, dadurch gekennzeichnet, daß der Strömungsmesser aus einer in der Umleitung befindlichen Düse besteht, deren Druckabfall gering ist im Verhältnis zum Druckabfall in der Kapillare und an der die Druckdifferenz zur Bestimmung der Strömungsmenge in bekannter Weise mittels einer Ringwaage oder eines anderen bekannten Differenzdruckmessers gemessen wird. PATENT CLAIMS: 1. Partial flow meter with in the main line located throttle and in the shunt to it built a flow meter according to Patent 868219, characterized in that the flow meter consists of one in the There is a bypass located nozzle, the pressure drop of which is small in proportion on the pressure drop in the capillary and on which the pressure difference is used to determine the Flow rate in a known manner by means of a ring balance or another known Differential pressure meter is measured. 2. Teilstromdurchflußmesser gemäß Anspruch 1, dadurch gekennzeichnet, daß der Differenzdruckmesser mit elektrischer oder magnetischer oder andersgearteter Kontaktgebung versehen ist, die bei Über- oder Unterschreitung einer eingestellten Strömungsmenge ein Schaltwerk betätigt, das in bekannter Weise zur Betätigung einer in der Hauptleitung befindlichen Regeldrossel dient, so daß die eingestellte Durchflußmenge, bezogen auf den Normalzustand, unbeschadet des in der Leitung vorhandenen wechselnden Druckes konstant bleibt. 2. Partial flow meter according to claim 1, characterized in that that the differential pressure meter with electrical or magnetic or other kind Contacting is provided, which if a set point is exceeded or not reached Flow rate actuates a switching mechanism, which in a known manner for actuating a in the main line is used so that the set flow rate, related to the normal state, without prejudice to the changing conditions present in the line Pressure remains constant.
DER2821D 1939-09-29 1939-09-29 Flow meter Expired DE891753C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER2821D DE891753C (en) 1939-09-29 1939-09-29 Flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER2821D DE891753C (en) 1939-09-29 1939-09-29 Flow meter

Publications (1)

Publication Number Publication Date
DE891753C true DE891753C (en) 1953-10-01

Family

ID=7396136

Family Applications (1)

Application Number Title Priority Date Filing Date
DER2821D Expired DE891753C (en) 1939-09-29 1939-09-29 Flow meter

Country Status (1)

Country Link
DE (1) DE891753C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1244428B (en) * 1960-04-26 1967-07-13 Minimax Ag Device for admixing an admixing liquid to a main liquid flow in a fixed mixing ratio
DE1295866B (en) * 1962-11-14 1969-05-22 Flo Tron Arrangement for measuring the amount of mass flowing through a line in the unit of time
DE2430730A1 (en) * 1973-07-02 1975-01-30 Serva Soc DEVICE FOR MEASURING GAS FLOW
EP0369738A2 (en) * 1988-11-18 1990-05-23 Pro-Aqua Systems Limited Modulation system for pressure reducing valves

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1244428B (en) * 1960-04-26 1967-07-13 Minimax Ag Device for admixing an admixing liquid to a main liquid flow in a fixed mixing ratio
DE1295866B (en) * 1962-11-14 1969-05-22 Flo Tron Arrangement for measuring the amount of mass flowing through a line in the unit of time
DE2430730A1 (en) * 1973-07-02 1975-01-30 Serva Soc DEVICE FOR MEASURING GAS FLOW
EP0369738A2 (en) * 1988-11-18 1990-05-23 Pro-Aqua Systems Limited Modulation system for pressure reducing valves
EP0369738A3 (en) * 1988-11-18 1991-06-26 Pro-Aqua Systems Limited Modulation system for pressure reducing valves

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