EP3479077A1 - Adjustable measurement sleeve for determining the amount of a fluid flowing through a duct - Google Patents
Adjustable measurement sleeve for determining the amount of a fluid flowing through a ductInfo
- Publication number
- EP3479077A1 EP3479077A1 EP17746165.4A EP17746165A EP3479077A1 EP 3479077 A1 EP3479077 A1 EP 3479077A1 EP 17746165 A EP17746165 A EP 17746165A EP 3479077 A1 EP3479077 A1 EP 3479077A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conduit
- sleeve
- measuring sleeve
- piston
- sensor
- 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.)
- Withdrawn
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 27
- 238000005259 measurement Methods 0.000 title abstract description 9
- 239000000463 material Substances 0.000 claims description 14
- 230000004308 accommodation Effects 0.000 abstract 1
- 230000000295 complement effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
-
- 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
- G01F1/66—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 measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/662—Constructional details
-
- 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
- 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
- G01F15/06—Indicating or recording devices
- G01F15/065—Indicating or recording devices with transmission devices, e.g. mechanical
- G01F15/066—Indicating or recording devices with transmission devices, e.g. mechanical involving magnetic transmission devices
-
- 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
- G01F15/14—Casings, e.g. of special material
Definitions
- the invention relates to the field of metrology and more specifically that of measuring the amount of fluid flowing through a conduit.
- the invention more particularly relates to a measuring sleeve for determining the quantity of a fluid passing through a conduit, said sleeve, intended to be mounted around a fluidic conduit, comprising a first part and a second part. interconnected to define a receiving space of the conduit and an electromechanical sensor arranged at one of the parts so as to have a portion extending into the receiving space of the conduit.
- the measuring sleeve is intended in particular, but not exclusively, for the purpose of analyzing and characterizing the consumption of a fluid, in particular water or a liquid, flowing in a conduit.
- Application WO2014 / 020252 discloses a measuring sleeve intended to be mounted around a supply pipe for the purpose of acquiring signals in order to estimate the individual water consumption of a plurality of equipment.
- the sleeve comprises an electromechanical sensor applied against the outer wall of said supply pipe, as well as a computer for analyzing the signals delivered by said electromechanical sensor in order to extract a characterization information of the individual consumption. at least part of the equipment powered by said secondary network.
- the sleeve consists of two tubular half-shells connected by a joint allowing its opening for insertion around a pipe, and its closure for the application of said sensor against the wall of said pipe.
- the locking the two half-shells together is provided by means of a locking spoiler carried by one of the half-shells, said spoiler being intended to cooperate with a complementary spoil carried by the other half-shell.
- the measuring sleeve of the aforementioned application however has the disadvantage of not ensuring the same accuracy in terms of measurements following the pipe on which it will be mounted. Indeed, according to the diameter of the pipes, the pressure applied by the outer wall of the pipe on the sensor may vary according to the diameter thereof. It is easily understood that a pipe having a diameter greater than that of another pipe exerts a pressure on the larger sensor than a pipe having a smaller diameter. In addition, the measuring sleeve remains dedicated to pipes of a certain diameter. However, excessive pressure or insufficient pressure can lead to errors in the measurements taken by the sensor.
- the invention aims to remedy these problems by proposing a measuring sleeve and a system comprising such a measuring sleeve ensuring optimum pressure of the conduit on the electromechanical sensor regardless of the dimensions of the conduit on which it is mounted.
- the invention also aims to propose a measuring sleeve that can be mounted quickly and easily on the duct to be evaluated, and this by ensuring the application of a pressure by the conduit on the appropriate sensor whatever the duct dimensions.
- the invention also aims to prevent the transmission of vibrations in the mass of the sleeve during the passage of fluid in the conduit.
- the invention also aims to provide an adjustable measuring sleeve according to the nature of the conduit to be evaluated.
- the invention proposes a measurement sleeve for determining the quantity of a fluid passing in a conduit, said sleeve, intended to be mounted around a fluidic conduit, comprising a first part and a second part interconnected to define a duct receiving space and an electromechanical sensor arranged at one of the parts to be applied against the outer wall of the duct, said measuring sleeve being remarkable in that it comprises calibrated adjustment means for adjusting the receiving space according to distinct predetermined diameters so as to apply to the sensor a specific pressure adapted whatever be the dimensions of the duct, each predefined diameter corresponding to a duct of specific diameter.
- the clamping of the duct is optimally performed to correspond jointly (i) to the diameter and, advantageously, to the nature of the conduit considered and (ii) the characteristics necessary for the measurement by the electromechanical sensor by the application of adequate pressure to said sensor by limiting the risk of deterioration of the latter.
- the opening of the receiving space is thus pre-established (or pre-calibrated) for ducts of given diameter, and if necessary of a given nature, the mounting of the measuring sleeve on the duct concerned is realized quickly and easily and this ensuring the application on the sensor of a suitable pressure regardless of the dimensions of the duct.
- suitable pressure is meant a pressure taking into account the sensor used on the one hand, and constant - i.e. identical - for all the ducts on which the sleeve is mounted on the other hand.
- the senor is secured to a piston adapted to move between a position in which the piston has a projecting portion in the receiving space and a position in which the piston is flush with the inner wall of the room in which he is arranged.
- the projecting position of the piston defines the position of the piston initially before tightening the sleeve on the conduit, the passage from the projecting position to the flush position of the piston being obtained by clamping the sleeve around the conduit via the calibrated adjustment means.
- the piston is held projecting before clamping into the receiving space by means of a spring element, the O-ring type. After tightening, the piston is elastically held in abutment against the outer wall of the conduit flush with the inner wall of the part concerned.
- This elastic support combined with the clamping of the sleeve parts against the conduit via the calibrated adjustment means offers the advantage of ensuring optimum vibration of the electromechanical sensor.
- the piston thus constitutes a member for transmitting vibrations to the sensor.
- the adjustment means comprise a rack carried by one of the parts, the other part being provided with a lug adapted to engage with a notch of the rack, said rack having a plurality of arranged notches to define, with the engaged pin, receiving spaces adapted to receive respectively a duct of given diameter while simultaneously ensuring the application of the same pressure on the electromechanical sensor regardless of the diameter of the duct on which the sleeve is mounted.
- the sleeve comprises means for adjusting the pressing pressure exerted on the conduit by the piston.
- the sleeve comprises an interchangeable element of expanded material, of uniform thickness, adapted to be inserted between one of the parts and the fluid conduit so that when the measuring sleeve is mounted and clamped on the conduit. fluidic, the piston exerts a pressure adapted to the fluid conduit.
- the electromechanical sensor is arranged at one of the parts with a clearance so as to allow movement of the sensor in a direction perpendicular to the longitudinal axis of the receiving space.
- the electromechanical sensor is integral with an electrically conductive element carrying the piston.
- the electromechanical sensor is disposed between two wedging elements, one of the wedging elements constituting the piston, each wedging element comprising a contact portion adapted to be brought into contact with a pin of electric contact.
- the electrical contact pins are housed in a third part fixed on the part comprising the electromechanical sensor.
- the electromechanical sensor is housed in the wall of one of the parts.
- the electromechanical sensor is a piezoelectric sensor.
- the sleeve comprises a single electromechanical sensor.
- the invention also relates to an equipment for determining the quantity of a fluid passing through a conduit, comprising a measuring sleeve as described above and a series of interchangeable elements, of expanded material, of a nature and / or different thicknesses.
- FIG. 1 shows a perspective view of a measuring sleeve according to a first embodiment of the invention
- FIG. 2 represents a cross-sectional view of the measuring sleeve of FIG.
- FIG. 3 shows a longitudinal sectional view of the measuring sleeve of Figure 1;
- FIG. 4 represents a detailed view of the measuring sleeve of FIG. 3;
- FIG. 5 represents a perspective view of a measuring sleeve surmounted by an electronic box according to a second embodiment of the invention
- FIG. 6 represents a longitudinal sectional view of the measuring sleeve of the Figure 5;
- FIGS 7 and 8 show a front and rear view of the measuring sleeve of Figure 5, the electronic unit being shown not mounted on the sleeve;
- FIG. 9 represents a perspective view of a measuring sleeve surmounted by an electronic box according to another embodiment of the invention.
- FIG. 10 represents a cross-sectional view of the measuring sleeve of FIG. 9.
- a measuring sleeve 1 for determining the amount of a fluid passing in a conduit.
- the measuring sleeve 1 is intended to be mounted around a fluid conduit through which the fluid must be determined.
- the measuring sleeve 1 comprises two semi-tubular parts arranged and coupled to each other to define a space extending from one end of the measuring sleeve 1 to the other end.
- the space constitutes a reception space 7 of the fluidic conduit.
- the semi-tubular parts will subsequently be designated as bottom part 2 and top part 3 in relation to the position of the measuring sleeve illustrated in the figures.
- the two parts 2, 3 are coupled to each other by means of mutual association which comprise, in the illustrated embodiment, a rack device 4. More specifically, one of the parts, in this case the upper part 3, comprises a series of parallel notches 40 extending longitudinally over all or part of the length of the outer face of the side walls 31, 32 while the lower part 2 comprises one or more lug (s) 41 formed on the inner face 210, 220 of each side wall 21, 22 and extending in all or part along said side wall, said lugs being adapted to cooperate with the notches of the rack.
- outer face of a wall is meant the side facing the side opposite the receiving space 7 and the inner side of a wall, the side facing the side of the receiving space.
- the notches 40 carried by each of the side walls are arranged at a distance from each other so as to define openings each corresponding to a specific diameter duct (or specific height for a duct having a section other than circular) but adjusted to ensure clamping of the conduit so as to apply, on a force measurement sensor of an electromechanical measuring system described below, a predetermined pressure, identical for each of the conduits referenced by the notches.
- the sleeve thus has pre-calibrated openings for fluid ducts of diameter, and if necessary of nature, data.
- the measuring sleeve 1 is associated with an electromechanical measuring system based on the use of at least one electromechanical sensor 5.
- the electromechanical measuring system is housed in part in a cavity formed in the base wall 30 of the upper part 3, another part being housed in a third part 6, hereinafter referred to as the cover, fixed on the upper surface of the wall basic.
- the cover 6 is fixed on the upper part 3 by means of two holding screws 7 disposed near the ends of the cover 6.
- the cover 6 is advantageously provided with a longitudinal groove 8 in the form of a tail dovetail for receiving an electronic box (not shown) having a base of complementary shape to the dovetail, the latter being slidably mounted along the groove 8.
- the electronic box contains an electronic circuit for the realization a pretreatment signals received from the electromechanical sensor, which signals are transmitted to a remote computer by a wired link or not, according to for example the Wifi standard. It can also be provided that the received signals are also stored in a local memory allowing a relay from a device via a USB socket or with a SIM-type memory card for example.
- the electromechanical sensor 5 advantageously a piezoelectric sensor, is housed in the cavity of the base wall 30 of the part 3. It is disposed between two wedging elements 9, 10 electrical, l one of the elements defining an upper wedging element 9 and the other a lower wedging element 10.
- Each wedging element 9, 10 comprises a portion capable of being brought into contact respectively with an electric contact pin 11, 12.
- the contact of the wedging elements 9, 10 with one of the contact pins 11, 12 is achieved via respectively a compression spring 24, 25.
- Other arrangements can of course be provided without leaving the framework of the invention. It can be provided in particular an arrangement comprising a single wedging element, the lower wedging element 10, on which the sensor is mounted. In this case, the wedging element 10 will comprise portions capable of being brought into contact with each of the electrical contact pins.
- the electromagnetic sensor assembly 5 and wedging elements 9, 10 is arranged in the upper part 3, inside the cavity, with a clearance allowing a displacement of the sensor in a direction perpendicular to the longitudinal axis of the reception area 7
- the electromechanical sensor assembly 5 and wedging elements 9, 10 is also integral with a member, hereinafter referred to as a piston, capable of moving inside the cavity between a position in which said piston is present. a protruding portion 14 with respect to the inner wall of the workpiece 3, in the receiving space 7 and a position in which said piston is flush with the inner wall of the workpiece 3.
- the projecting position 14 of the piston corresponds to the position of the piston before clamping on the conduit while the flush position of the piston (position not shown) corresponds to the position of the piston after tightening the sleeve around the conduit, which clamping is adapted to the diameter of the conduit and where appropriate to the nature of it and than the type of electromechanical sensor via the means of reciprocal association (rack device) pre-calibrated.
- the piston is held projecting in the receiving space 7 before clamping the sleeve around the conduit by means of an O-ring compression 13.
- the O-ring 13 is housed in a space opening in the lower part of the cover 6, in alignment with the sensor assembly / wedging elements.
- the piston and the wedging element 10 are formed in one piece.
- the measuring sleeve may comprise means for adjusting the pressing pressure exerted on the conduit by the projecting portion of the piston, and more specifically the projecting portion 14 of the lower wedging element 10. Such means will be described with the embodiments illustrated in Figures 5 to 10 described below.
- FIGS 5 to 8 illustrate an alternative embodiment of a measuring sleeve 1A according to the invention shown with an electronic box 17.
- the measuring sleeve 1A generally resumes the characteristics of the measuring sleeve 1 described above.
- it comprises an arrangement of the electromechanical measuring system similar to that previously described as illustrated in FIG. 5 which shows the wedging elements in contact with the contact pins. electrical 11, 12, themselves in contact with the electrical contact pins 22, 23 carried by the control unit 17.
- the control unit 17 comprises a base comprising a tongue 18 extending longitudinally, of complementary shape to that of the longitudinal groove 8 dovetail.
- the tongue 18 is extended at the end by two transverse arms 20, 21 intended to abut on a shoulder 19 provided for this purpose on the cover 6.
- the notches 40 are carried by the lower part 2, on the outer face of lateral arms 21A, 22A extending vertically, while the lugs 41 are carried by the upper part 3, side internal face of the side walls 31A, 32A, which respectively comprise a vertical passage slot 15 for the passage of the lateral arms 21A, 22A of the lower part 2 when coupling the parts together.
- the measuring sleeve 1A comprises means making it possible to adjust the pressing pressure exerted on the duct by the piston carried by the lower wedging element 10.
- the adjustment comprises an expanded material member 16 in the form of a planar layer having a uniform thickness.
- the expanded material member 16 is placed on the inner face of the bottom part base wall 2 so as to be inserted between the bottom piece 2 and the fluid conduit when the sleeve is in position thereon.
- the expanded material element is interchangeable with other elements of expanded material is also preferably in the form of a flat layer with a regular thickness, but of nature and / or different thicknesses. Each element of expanded material 16 is associated with a particular type of fluidic conduit.
- the element of expanded material 16 will be selected from the series of expanded foam elements associated with the measuring sleeve 1A depending on the nature of the fluid conduit to be equipped.
- the measuring sleeve 1A is therefore provided with a kit of elements made of expanded material comprising as many elements of expanded material that there is a type of duct to equip both in terms of material in which the duct is made (steel, stainless steel, etc.) than its dimensions.
- the function of the expanded material element is to adjust the pressure to be exerted on the conduit via the piston as a function of the nature of the conduit.
- Figures 9 and 10 illustrate an embodiment representing the apparatus with a housing incorporating the electronic part without dissociation of the parts.
- the electronic box 17, the cover 6 and the upper part 3 are formed in one piece.
- the measuring sleeve has been shown to be mounted on a fluid conduit having a circular section. It is of course obvious that the invention is not limited to such conduits, said sleeve may be intended to be implemented on fluidic conduits section other than circular.
- the shape of the inner walls of the parts 2 and 3 intended to form the receiving space 7 will then be adapted according to the fluid conduit to be equipped.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Volume Flow (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1656325A FR3053461B1 (en) | 2016-07-01 | 2016-07-01 | MODULAR MEASUREMENT SLEEVE FOR DETERMINING THE QUANTITY OF A FLUID IN A CONDUIT |
PCT/FR2017/051796 WO2018002563A1 (en) | 2016-07-01 | 2017-07-03 | Adjustable measurement sleeve for determining the amount of a fluid flowing through a duct |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3479077A1 true EP3479077A1 (en) | 2019-05-08 |
Family
ID=56611505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17746165.4A Withdrawn EP3479077A1 (en) | 2016-07-01 | 2017-07-03 | Adjustable measurement sleeve for determining the amount of a fluid flowing through a duct |
Country Status (5)
Country | Link |
---|---|
US (1) | US20200158557A1 (en) |
EP (1) | EP3479077A1 (en) |
CA (1) | CA3027738A1 (en) |
FR (1) | FR3053461B1 (en) |
WO (1) | WO2018002563A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110657848B (en) * | 2019-10-18 | 2020-10-09 | 恩乐曼仪表(徐州)有限公司 | Ultrasonic flow meter with self-adjusting fluid section |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1544404A (en) * | 1967-11-14 | 1968-10-31 | Switching device, in particular electric switches with removable fixing for controlling auxiliary electrical equipment in motor vehicles | |
JP6124410B2 (en) * | 2011-03-18 | 2017-05-10 | ソネター, インク.Soneter, Inc. | Fluid flow measuring method and apparatus |
DE102012009076A1 (en) * | 2012-05-09 | 2013-11-14 | Sensus Spectrum Llc | Measuring device with a fluid meter |
FR2993976B1 (en) | 2012-07-30 | 2014-08-08 | Oxena Conseil | SYSTEM FOR ESTIMATING INDIVIDUAL WATER CONSUMPTION |
WO2015117263A1 (en) * | 2014-02-04 | 2015-08-13 | General Electric Company | Ultrasonic flow meter clamp |
-
2016
- 2016-07-01 FR FR1656325A patent/FR3053461B1/en not_active Expired - Fee Related
-
2017
- 2017-07-03 CA CA3027738A patent/CA3027738A1/en not_active Abandoned
- 2017-07-03 EP EP17746165.4A patent/EP3479077A1/en not_active Withdrawn
- 2017-07-03 WO PCT/FR2017/051796 patent/WO2018002563A1/en unknown
- 2017-07-03 US US16/314,462 patent/US20200158557A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20200158557A1 (en) | 2020-05-21 |
FR3053461A1 (en) | 2018-01-05 |
FR3053461B1 (en) | 2019-07-05 |
WO2018002563A1 (en) | 2018-01-04 |
CA3027738A1 (en) | 2018-01-04 |
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