GB1363844A - Flowmeter - Google Patents

Flowmeter

Info

Publication number
GB1363844A
GB1363844A GB3710670A GB3710670A GB1363844A GB 1363844 A GB1363844 A GB 1363844A GB 3710670 A GB3710670 A GB 3710670A GB 3710670 A GB3710670 A GB 3710670A GB 1363844 A GB1363844 A GB 1363844A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
pump
fluid
motor
speed
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
GB3710670A
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.)
MAURER R
Original Assignee
MAURER R
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 MAURER R filed Critical MAURER R
Priority to GB3710670A priority Critical patent/GB1363844A/en
Publication of GB1363844A publication Critical patent/GB1363844A/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
    • 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
    • G01F1/38—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 the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule
    • G01F1/383—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 the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule 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
    • G01F1/363—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

Abstract

1363844 Measuring fluid-flow R MAURER 2 Aug 1971 [31 July 1970 17 Aug 1970] 37106/70 and 39539/70 Heading G1R In a fluid-flowmeter comprising a conduit 9 through which fluid flows in the direction of arrow "V", Fig.1, a first duct 10 communicates with the fluid upstream of a constriction 1 and with a balancing chamber to one side of a diaphragm 2, a second duct 11 communicates with the fluid downstream of the constriction 1 and with the balancing chamber on the other side of the diaphragm 2, a motor 6 drives a centrifugal pump 7 located so the balancing chamber on the other side of the diaphragm 2 and a sensor 3 responsive to movement of the diaphragm 2 sends a signal, which is amplified at 4, to a controller 5 to effect the motor 6 speed and hence the pressure delivered by the pump 7 effecting movement of the diaphragm 2. In an alternative arrangement, Fig.3, a bleed valve 13 is connected in the outlet from the pump 7 and is operated by a diaphragm 15, loaded by a spring 16, located in an hydraulic actuator which is connected by tubes 17, 18, connected respectively on the opposite sides of a chamber containing the diaphragm 15, to the ducts 10, 11 so as to effect actuation of the valve 13 to maintain the pressure constant in the balancing chamber on either side of the diaphragm 2 and control the pump 7 speed in accordance with the fluid-flow rate. In a further embodiment. Fig. 4 (not shown), a linearly movable tube, closed at one end and provided with a number of holes along its length, is arranged in the pump chamber. A yet further embodiment Fig. 5 (not shown), has a digital drive arrangement for the motor and a digital indicating arrangement is provided, and in a yet further embodiment, Fig. 6 (not shown), the sensor is connected to the input of a voltage-tofrequency converter which feeds pulses to control the speed of the motor. A spoiler blade may be provided near the impeller rim to effect the impeller efficiency. The rotational speed of the pump is proportional to the fluid velocity and the integrated flow is obtained by counting the total number of pump revolutions on a ratemeter or totaliser 8.
GB3710670A 1971-08-02 1971-08-02 Flowmeter Expired GB1363844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3710670A GB1363844A (en) 1971-08-02 1971-08-02 Flowmeter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3953970 1971-08-02
GB3710670A GB1363844A (en) 1971-08-02 1971-08-02 Flowmeter

Publications (1)

Publication Number Publication Date
GB1363844A true GB1363844A (en) 1974-08-21

Family

ID=26263335

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3710670A Expired GB1363844A (en) 1971-08-02 1971-08-02 Flowmeter

Country Status (1)

Country Link
GB (1) GB1363844A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001443A1 (en) * 1985-08-26 1987-03-12 Aard Jacob Ketel Portable measuring device provided with an instant gas flow rate reading
IT201600129661A1 (en) * 2016-12-21 2018-06-21 Fimcim Spa DIFFERENTIAL PRESSURE METER
IT201800020635A1 (en) 2018-12-22 2020-06-22 Roberto Sanavia System using heat sensitive strips for balancing several hydraulic rings of a hydraulic device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001443A1 (en) * 1985-08-26 1987-03-12 Aard Jacob Ketel Portable measuring device provided with an instant gas flow rate reading
IT201600129661A1 (en) * 2016-12-21 2018-06-21 Fimcim Spa DIFFERENTIAL PRESSURE METER
EP3339813A1 (en) * 2016-12-21 2018-06-27 Fimcim S.P.A. Differential pressure meter
US10712221B2 (en) 2016-12-21 2020-07-14 Fimcim S.P.A. Differential pressure meter
IT201800020635A1 (en) 2018-12-22 2020-06-22 Roberto Sanavia System using heat sensitive strips for balancing several hydraulic rings of a hydraulic device

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees