WO2019233388A1 - Compteur bidirectionnel de haute précision pour la mesure de fluide - Google Patents

Compteur bidirectionnel de haute précision pour la mesure de fluide Download PDF

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Publication number
WO2019233388A1
WO2019233388A1 PCT/CN2019/089881 CN2019089881W WO2019233388A1 WO 2019233388 A1 WO2019233388 A1 WO 2019233388A1 CN 2019089881 W CN2019089881 W CN 2019089881W WO 2019233388 A1 WO2019233388 A1 WO 2019233388A1
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WO
WIPO (PCT)
Prior art keywords
impeller
hall sensor
meter according
circuit
fluid meter
Prior art date
Application number
PCT/CN2019/089881
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English (en)
Chinese (zh)
Inventor
魏松涛
姚玉婷
田飞
魏贝贝
李沿
雷利
李亚龙
魏京涛
李显
Original Assignee
Wei Songtao
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 Wei Songtao filed Critical Wei Songtao
Publication of WO2019233388A1 publication Critical patent/WO2019233388A1/fr

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    • 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
    • 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
    • G01F1/10—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 using rotating vanes with axial admission
    • G01F1/115—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 using rotating vanes with axial admission with magnetic or electromagnetic coupling to the indicating device

Definitions

  • Water meters are instruments used to measure water flow and are widely used in homes, factories, offices and many other fields.
  • the types of water meters can be divided by the principle of measurement. The common types are:
  • the measuring sensors, calculators and indicating devices are all water meters with mechanical principles and structures. There are mainly speed water meters and volume water meters.
  • Electronic water meters are divided into mechanical sensing electronic water meters and electronic sensing electronic water meters.
  • the measuring sensor of the mechanical sensing electronic water meter is composed of a sensor based on the principle of mechanical movement and a sensing element capable of converting mechanical movement into an electrical signal input into a calculator.
  • the calculator and the indicating device are electronic components, such as a vortex (leaf) wheel Electronic water meter.
  • the electronic water meter's measuring sensor is based on the principle of electronic or electromagnetic induction.
  • the calculator and indicating device are electronic components, such as ultrasonic water meters, jet water meters, Coriolis water meters and electromagnetic water meters.
  • the mechanical watch is lowered in and out when the water enters, pushing the gears forward, and reversed when it is in the water, it pushes the gears in reverse.
  • the resistance of the two-phase water is different, although the water in the two ends is the same.
  • the readings reflected on the water meter are very different.
  • the water meter has a minimum initial dynamic amount of water. When the faucet is dripped, the water flow cannot push the impeller blades to rotate, so some water meters cannot be measured normally.
  • water meter products commonly used at home and abroad are mainly traditional mechanical water meters and water meters with electronic devices.
  • Most of these two types of water meters use the principle of mechanical impeller blade type and rotary piston type transmission (sensor).
  • the mechanical counter indicates the measurement result or the sensor obtains the mechanical rotation signal and displays the measurement result after processing. Due to problems in principle and structure, there are many deficiencies and defects in the service life, measurement repeatability and reliability, measurement accuracy, requirements for water quality, and acquisition and transmission of measurement signals.
  • the present disclosure proposes a high-precision two-way electronic water meter.
  • the present disclosure discloses a high-precision two-way measurement electronic meter, the purpose of which is to improve the measurement accuracy of the meter, reduce power consumption, prevent multiple power outages, facilitate maintenance, prevent flips and theft, Increase its production capacity, without the need for professional technicians to install testing and maintenance, to achieve data upload, download and update through wireless means.
  • a high-precision fluid meter comprising a watch case, a watch core and a control circuit, characterized in that the watch core and the control circuit are arranged in the watch case;
  • the watch core includes: , The impeller shaft, the fixed frame, the fixed frame is fixed in the case and connected to one end of the impeller shaft, the impeller is arranged on the other end of the impeller shaft away from the fixed frame, the plane of the fixed frame and the plane of the impeller are arranged in parallel on the impeller shaft, table
  • the fluid to be measured inside the shell flows through the impeller.
  • the impeller is also provided with at least one magnet, and each magnet is fixedly disposed in the middle of the impeller to make the magnet rotate with the impeller when the fluid to be tested impacts the impeller;
  • the control circuit includes: Lithium battery, induction coil, first Hall sensor, second Hall sensor, display screen, main control chip, storage unit, electromagnetic damping control circuit and wireless charging management circuit; lithium battery, first Hall sensor, second Huo Sensor, display screen, storage unit, electromagnetic damping control circuit and wireless charging management circuit are all electrically connected to the main control chip; induction wire It is electrically connected to the electromagnetic damping control circuit and the wireless charging management circuit respectively; the lithium battery is also electrically connected to the wireless charging management circuit; the induction coil, the first Hall sensor and the second Hall sensor are all arranged on the fixed frame and the positions are all connected to the magnet; It is
  • the high-precision fluid meter is a water meter, and the fluid to be measured is water.
  • the first Hall sensor and the second Hall sensor are set at a certain preset distance; and the main control chip is further configured to determine the sequence in which the first Hall sensor and the second Hall sensor detect the magnetic fields, respectively. , And determine the direction of the fluid to be measured according to the sequence.
  • the main control chip is further configured to calculate a change rate of the magnetic field change detected by the first Hall sensor and / or the second Hall sensor, and determine the flow rate of the fluid to be measured according to the change rate.
  • the impeller shaft is arranged vertically, the fixed frame is connected to the upper end of the impeller shaft, and the impeller is arranged at the lower end of the impeller shaft.
  • the rotation plane of the impeller is parallel to the traveling direction of the fluid to be measured.
  • each magnet is respectively disposed in the middle of a corresponding one of the blades.
  • the magnets are arranged along the circumferential direction of the impeller in an arrangement manner in which the N and S poles are opposite to each other.
  • the fixed frame is further provided with a first shielding cover and a second shielding cover, and the control circuit is disposed in the first shielding cover and the second shielding cover.
  • the first shield is made of iron; the second shield is made of aluminum or copper foil, and the first shield and the second shield are grounded inside the case.
  • the first Hall sensor and the second Hall sensor both adopt a bipolar Hall sensor.
  • a power management circuit is also connected between the lithium battery and the main control chip.
  • the main control chip is further connected with a temperature sensor.
  • the main control chip is further connected with a valve body control circuit.
  • the main control chip is further connected with a wireless communication circuit and an infrared communication circuit.
  • the power management circuit further includes a trigger circuit portion; the trigger circuit portion is configured to: when the impeller does not rotate or rotates less than a first predetermined speed, the trigger circuit portion controls the lithium battery to suspend power to the components in the control circuit; When the speed is higher than the first predetermined rotation speed, the trigger circuit part controls the lithium battery to supply power to the components in the control circuit again.
  • the wireless charging management circuit further includes a circuit control switch; the circuit control switch is configured to: when detecting that the rotation speed of the impeller is less than a second predetermined rotation speed, control the wireless charging management circuit to disconnect and suspend the charging operation of the lithium battery.
  • the electromagnetic damping control circuit is configured to control the lithium battery to apply a voltage to both ends of the electromagnetic damping control circuit when it is detected that the rotating speed of the impeller is greater than a third predetermined rotating speed, so as to facilitate electromagnetic damping to slow down the rotating speed of the impeller;
  • the third predetermined speed is greater than the second predetermined speed.
  • the main control chip uses STM32L151RB.
  • the magnet is a bar-shaped strong magnet.
  • the water meter core and the control circuit are arranged in the water meter case;
  • the water meter core includes: an impeller, an impeller shaft, a fixed frame, the impeller is disposed at one end of the impeller shaft, the fixed frame is disposed at the other end of the impeller shaft, and the fixed frame and the impeller are at The impeller shaft is arranged in parallel.
  • the impeller is also provided with strong magnetism, which is arranged in the middle of the impeller.
  • the control circuit includes a lithium battery, an induction coil, a first Hall sensor, a second Hall sensor, a display screen, and a main control chip.
  • Storage unit electromagnetic damping control circuit and wireless charging management circuit
  • lithium battery, first Hall sensor, second Hall sensor, display screen, storage unit, electromagnetic damping control circuit and wireless charging management circuit are all connected to the main control chip ;
  • the induction coil is connected to the electromagnetic damping control circuit and the wireless charging management circuit respectively;
  • the lithium battery is also connected to the wireless charging management circuit;
  • the induction coil, the first Hall sensor and the second Hall sensor are all arranged on a fixed frame, the induction coil, The positions of the first Hall sensor and the second Hall sensor correspond to the position of the strong magnet on the impeller, and the strong magnet can Cutting the induction coil.
  • the six impellers and six strong magnets there are six impellers and six strong magnets.
  • the six strong magnets are alternately arranged with N poles and S poles in the same direction of the impeller.
  • the fixed frame is further provided with a first shielding cover and a second shielding cover, and the control circuit is disposed in the first shielding cover and the second shielding cover.
  • the first shielding cover is made of iron sheet; the second shielding cover is made of aluminum or copper foil, and the first shielding cover and the second shielding cover are grounded inside the water meter case.
  • the first Hall sensor and the second Hall sensor both adopt a bipolar Hall sensor.
  • a power management circuit is also connected between the lithium battery and the main control chip.
  • the main control chip is further connected with a temperature sensor.
  • the main control chip is further connected with a valve body control circuit.
  • the main control chip is further connected with a wireless communication circuit and an infrared communication circuit.
  • the beneficial effects of the present disclosure are: replacing the mechanical transmission part by adding a magnet to the impeller and the induction coil in the control circuit to reduce the mechanical loss and improve the measurement accuracy; by adding the first Hall sensor and the second Hall sensor The recognition of the impeller rotation direction and the impeller rotation speed are realized, the measurement error of the meter is inverted and the rotation of the meter is avoided, and the measurement accuracy of the water flow is improved; the wireless charging management circuit is added to realize the function of charging the lithium battery, and solves the problem Power failure and later maintenance of lithium battery life; electromagnetic damping control circuit is set up to achieve dynamic changes between the impeller's magnets and induction coils, keeping the impeller within a certain dynamic range, achieving dynamic balance, and increasing large flow rates The anti-overload capability of the lower meter greatly reduces mechanical wear and extends the working life.
  • FIG. 1 is a schematic diagram of an internal structure of a high-precision bidirectional fluid electronic meter in an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of the working principle of a high-precision bidirectional fluid electronic meter in an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of the control circuit 3 shown in FIG. 1.
  • the high-precision bidirectional fluid meter 100 includes: a watch case 1, a watch core 2, and a control circuit 3.
  • the watch case 1 is used to accommodate the watch movement 2 and the control circuit 3 and other internal parts of the watch.
  • the watch case 1 is provided with a first port and a second port to allow fluid to flow in and out. Normally, the fluid enters the watch case 1 through the first port, and then exits through the second port. However, due to the presence of mixed gas or fluctuations in the fluid, the backflow of the fluid occurs in a few cases, that is, the fluid enters the watch case 1 from the second port and leaves the first port.
  • the fluid meter is used as a water meter in this embodiment, that is, the fluid passing through the meter is water, but in other embodiments of the present disclosure, the fluid meter can also be used as a gas meter, oil Tables, etc., that is, the fluid to be measured in the table is gas or oil.
  • the watch movement 2 and the control circuit 3 are arranged in the watch case 1.
  • the watch movement 2 includes: an impeller 201, an impeller shaft 202, and a fixed frame 203; the watch movement 2 is mainly used for recording fluid flow.
  • the impeller 201 is fixed at the lower end of the impeller shaft 202, and it is best that the impeller 201 can rotate freely under a fluid impact; the fixing frame 203 is fixed at the upper end of the impeller shaft 202 and is arranged in parallel with the impeller 201.
  • the impeller shaft 202 is vertically arranged, the fixed frame 203 is connected to the upper end of the impeller shaft 202, and the impeller 201 is disposed at the lower end of the impeller shaft.
  • the impeller 202 is suspended below the fixed frame 203.
  • the impeller 201 is located in the flow path of the fluid to be measured, and the fixed frame 203 is disposed above the flow path of the fluid.
  • the advantage of this setting is that it is convenient for the fluid to flow through the watch movement 2, and it is beneficial for the fluid to impact the impeller 201 to promote its rotation.
  • the components (Hall sensors, control circuits, etc.) provided on the fixed frame 203 are not affected by the fluid. Effect, thereby ensuring the operational stability of these components.
  • the rotation plane of the impeller 201 is parallel to the traveling direction of the fluid to be measured to further improve the impact effect of the fluid on the impeller 201.
  • the central part of the impeller 201 is provided with a magnet 2011, and the magnet 2011 can be fixed to the central part of the impeller 201 in any feasible manner, for example, fixed by screws, snap-fastened, pasted or integrated.
  • the magnet 2011 is preferably a bar-shaped strong magnet, and 6 blade impellers 201 and 6 magnets 2011 are preferably used.
  • the 6 magnets 2011 are respectively disposed in the middle of the blades of the 6 impellers 201, and the 6 magnets 2011 are in one direction.
  • the upper N and S poles are alternately set.
  • a first shielding cover 2031 and a second shielding cover 2032 are provided on the fixing frame 203. Furthermore, the first shielding cover 2031 is made of iron.
  • the second shielding cover 2032 is made of aluminum or copper foil, and the first shielding cover 2031 and the second shielding cover 2031 are grounded inside the high-precision bi-directional meter 100.
  • the first shielding cover 2031 prevents the interference of the external permanent magnets, and the second shielding cover 2032 prevents the external high-frequency alternating magnetic field interference.
  • the size of the shielding cover is reduced while preventing the interference of the magnet to the outside and the internal electromagnetic induction from the outside, which is convenient for production and installation and debugging.
  • a shielding cover is provided on the fixed frame 203, and the shielding cover is provided. Plated with conductive material.
  • the material of the shielding cover is an iron material, which may be an iron cover; and the conductive material is copper or zinc.
  • the shielding cover is used to prevent the interference of external permanent magnets, and the conductive material plated on the shielding cover is used to prevent the external high-frequency alternating magnetic field interference.
  • the control circuit 3 includes: a lithium battery 301, an induction coil 302, a first Hall sensor 303, a second Hall sensor 304, a display screen 305, a main control chip 306, a storage unit 307, and an electromagnetic damping control circuit. 308 and wireless charging management circuit 309.
  • the main control chip 306 uses STM32L151RB.
  • the control circuit 3 is disposed in the watch case 1, and the induction coil 302 is disposed on the fixed frame 203.
  • the impeller 201 rotates, the magnetic field lines of the magnet 2011 can cut the induction coil 302 to generate an induced voltage.
  • the first Hall sensor 303 and the second Hall sensor 304 are disposed on the fixed frame 203, and the positions thereof correspond to the magnets 2011 on the impeller 201, and are used to identify the steering and rotation speed of the impeller 201.
  • the plane where the fixed frame 203 is located is substantially parallel to the plane where the impeller 201 is located. Therefore, during the rotation of the impeller 201, the vertical distance between the Hall sensors 303 and 304 provided on the fixed frame 203 and the magnet 2011 on the blade Basically remains unchanged, thereby ensuring the accuracy of the measurement results.
  • the length of the impeller shaft 202 should be within a preset length range to ensure the best measurement effect of the Hall sensor.
  • the first Hall sensor 303 and the second Hall sensor 304 are bipolar Hall sensors.
  • the display screen 305 is connected to the main control chip 306 and is used to display the working status of the fluid meter and related metering information.
  • the storage unit 307 is connected to the main control chip 306 and is configured to store configuration information of the main control chip 306 and related data storage. Both ends of the electromagnetic damping circuit 308 and the wireless charging management circuit 309 are connected to the induction coil 302 and the main control chip 306, respectively.
  • the wireless charging management circuit 309 is connected to the lithium battery 301 for charging the lithium battery 301.
  • the lithium battery 301 is connected to the main control chip 306, and the lithium battery 301 supplies power to the main control chip 306.
  • the lithium battery 301 is used as the power source of the control circuit 3 and can supply power to at least some of the components in the control circuit 3, for example, the main control chip 306, the display screen 305, and the like.
  • the magnet 2011 rotates with the impeller 201 and changes the nearby magnetic field, thereby causing the magnetic flux in the induction coil 302 to change with time, thereby generating an induced current.
  • the induced current is rectified by the wireless charging management circuit 309 and converted into direct current, and then the lithium battery 301 is charged.
  • Techniques for rectifying AC power to DC power are well known to those skilled in the art and will not be described in detail here.
  • the advantage of the meter 100 in this embodiment is that during the use of the meter (that is, the fluid impinges on the impeller 201 to rotate it), power can be supplied to some components in the control circuit 3, so the fluid meter 100 in this embodiment Autonomous power supply can be achieved without the need for an externally connected power source, or with the assistance of an external power source that requires less power.
  • a power management circuit 3011 is further provided between the lithium battery 301 and the main control chip 306, and is used for output management of multiple power sources, including the lithium battery 301 voltage detection and power control.
  • the trigger circuit part may be a control switch or a component that can implement similar functions.
  • the trigger circuit part When the speed of the impeller 201 is higher than the first predetermined speed, that is, after the induced voltage generated by the induction coil 302 is greater than a predetermined voltage value, the trigger circuit part will activate the start-up meter 100 and control the lithium battery 301 to return to the control circuit 3 The components are powered to ensure their proper operation.
  • the wireless charging management circuit 309 and the electromagnetic damping circuit 308 are connected in parallel to the two ends of the electromagnetic coil, respectively.
  • the wireless charging management circuit 309 and the electromagnetic damping circuit 308 control the current in the electromagnetic coil at the same time.
  • the role of the electromagnetic damping circuit 308 is to change the electromagnetic coil pair by adjusting the current in the electromagnetic coil.
  • the magnitude of the damping effect of the impeller 201 makes the rotation speed of the impeller 201 be regulated within a reasonable value range.
  • a temperature sensor 310 is further connected to the main control chip 306 for detecting the internal temperature of the meter to prevent damage caused by abnormal temperature; a valve body control circuit is also connected to the main control chip 306 311 is used to drive the execution of the valve body; a wireless communication circuit 312 is also connected to the main control chip 306 for bidirectional data exchange between the meter and the data center, sending the status and working data of the meter, and receiving control commands, and The remote firmware program is updated; the main control chip 306 is also connected with the infrared communication circuit 313, which is used for the handheld terminal to read and write the meter data and view the meter status information.
  • the data calibration and correction can be performed without opening the case of the meter, and the internal procedures of the meter can be upgraded and the data can be exported.
  • downloading different programs, and Parameter configuration and data correction can form different types of meters, reduce inventory pressure, facilitate batch and standardized production, effectively reduce production time costs and labor costs, and solve the problem of insufficient production capacity.
  • the specific working mode of the high-precision two-way meter 100 is: connect the meter to the tap water pipe, activate the valve, and the water current drives the impeller 201 in the watch core 2 to rotate.
  • the magnet 2011 on the impeller 201 also rotates with the impeller 201, and the induction coil 302 performs magnetic field cutting, and the induction coil 302 can generate an induced voltage, and the induced voltage charges the lithium battery 301 through the wireless charging management circuit 309.
  • the first Hall sensor 303 and the second Hall sensor 304 can identify the rotation direction and rotation speed of the impeller 201, and transmit the rotation information of the impeller 201 to the main control chip by magnetic coupling. 306.
  • the number of Hall pulses is converted into flow velocity information by an algorithm, and then converted into flow information.
  • the specific working principle is: when the fluid impinges on the impeller 201, it is driven to rotate, and the magnet 2011 on the impeller rotates with the impeller 201 and periodically passes near the two Hall sensors 303 and 304. Whenever the magnet 2011 passes the Hall sensors 303, 304, the Hall sensor will generate a signal pulse.
  • the frequency of the above-mentioned signal pulse and the flow velocity of the fluid have a positive correlation.
  • the greater the flow velocity of the fluid the higher the frequency of the detected signal pulse.
  • the above-mentioned positive correlation may be stored in the main control chip 306 in the form of a functional relationship, so that the main control chip 306 converts the number of Hall pulses into flow velocity information through an algorithm, and then converts into flow information.
  • the first Hall sensor 303 and the second Hall sensor 304 may be fixed on the fixed frame 203 and set at a predetermined distance.
  • the preset distance should be smaller than the distance between the middle portions of adjacent blades of the impeller 201 to avoid detection errors.
  • the main control chip 306 is configured to determine the sequence in which the first Hall sensor 303 and the second Hall sensor 304 respectively detect the magnetic field, and determine the direction of the fluid to be measured according to the sequence.
  • the fluid meter of this embodiment can not only accurately calculate the flow rate of the fluid, but also detect the direction of movement of the fluid, that is, detect whether the fluid is flowing forward (that is, flowing from the first port to the second port) or reversely The second port flows toward the first port).
  • the impeller 201 is driven to rotate counterclockwise (that is, the direction indicated by the arrow D1 in the figure), and the corresponding magnet Will pass the first Hall sensor 303 first, and then pass the second Hall sensor 304, so in this case, the main control chip 306 will first receive the pulse signal of the first Hall sensor 303, and then receive the second Hall sensor The sensor 304 can determine that the fluid is flowing forward.
  • the impeller 201 When the fluid flows in reverse, the situation is reversed, the impeller 201 will rotate counterclockwise (ie, the direction indicated by the arrow D2 in the figure), and the main control chip 306 will first receive the pulse signal from the second Hall sensor 304 and then receive The first Hall sensor 303 is capable of determining that the fluid flows in the reverse direction (that is, backflow).
  • the total flow of the fluid in the detection time can be performed through a preset program. Specifically, by programming, the flow data of the fluid flowing in the positive direction is recorded as a positive value, and the flow data of the fluid flowing in the reverse direction is recorded as a negative value, and then all the positive and negative values in the detection time are accumulated to obtain the detection. Total fluid flow over time.
  • the advantage of the fluid meter of this embodiment is that it can determine the flow direction of the fluid while measuring the flow rate of the fluid, so as to prevent the flow rate of the fluid from being returned as a forward flow rate, thereby accurately obtaining the total flow rate of the fluid and reducing Measurement error.
  • the first shielding cover 2031 is used to prevent magnetic interference from the permanent magnets on the induction coil 302 and the magnet 2011.
  • the second shielding cover 2032 is used to prevent interference from external high-frequency alternating magnetic fields.
  • the induction coil 302 generates an induced electromotive force under the image of the magnet 2011, in the case of a small flow rate of the water pipe, for example, when the speed of the impeller 201 is less than the second predetermined speed, the induction voltage of the induction coil 302 is low.
  • the management circuit 309 charges the lithium battery 301. Because of the electromagnetic damping phenomenon, the impeller will also receive a reaction force. At this time, resistance will hinder the measurement of small flow.
  • the corresponding circuit switch disconnects the wireless charging management circuit 309 in the above-mentioned situation, no current is generated in the electromagnetic coil, and the control by the electromagnetic damping control circuit 308 avoids the generation of electromagnetic damping effects to prevent small flow measuring.
  • the lithium battery 301 controllably outputs a voltage to the electromagnetic damping control circuit 308.
  • This can change its damping effect on the impeller 201, control the appropriate electromagnetic damping effect through the electromagnetic damping control circuit 308, so that the magnet 2011 and the induction coil 302 maintain a reasonable dynamic range, and further make the impeller 201 levitate in the middle of the impeller shaft 202 to rotate, It achieves dynamic balance, and at the same time improves the overload resistance of the meter under large flow rates.
  • the electromagnetic damping control circuit 308 is used to control the rotation speed of the impeller 201 within a certain value range to prevent the rotation speed of the impeller 201 from being too fast, thereby greatly reducing mechanical wear and extending the working life.
  • the fluid meter of the present disclosure can determine the direction of the fluid flow while measuring the flow rate of the fluid, so as to prevent the flow rate of the fluid from flowing back as a forward flow rate, thereby accurately obtaining the total flow rate of the fluid and reducing measurement errors. Therefore, it can be widely used for accurate fluid flow measurement of domestic water meters or industrial meters (oil meters, gas meters, etc.), and has industrial applicability.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Volume Flow (AREA)

Abstract

L'invention concerne un compteur bidirectionnel de haute précision pour la mesure de fluide, comprenant un boîtier de compteur (1), un cœur de compteur (2) et un circuit de commande (3). Le cœur de compteur (2) comprend : un impulseur (201), un arbre d'impulseur (202) et un cadre de fixation (203), un aimant (2011) étant disposé au milieu de l'impulseur (201). Le circuit de commande (3) comprend : une batterie au lithium (301), une bobine d'induction (302), un premier capteur à effet Hall (303), un deuxième capteur à effet Hall (304), un écran d'affichage (305), une puce de commande principale (306), une unité de stockage (307), un circuit de commande d'amortissement électromagnétique (308) et un circuit de gestion de charge sans fil (309). Les positions de la bobine d'induction (302), du premier capteur à effet Hall (303) et du deuxième capteur à effet Hall (304) correspondent toutes à la position de l'aimant (2011) sur l'impulseur (201), et la bobine d'induction (302) peut couper les lignes de champ magnétique de l'aimant (2011), de manière à produire une tension d'induction. En remplaçant la transmission mécanique par un circuit électronique, le compteur améliore la précision de mesure, réduit la perte d'énergie, et peut éviter que le compteur ne mesure pas lors de la mise hors tension, et évite l'autorotation du compteur, ce qui réalise les fonctions de mesure de haute précision, de faible consommation d'énergie, d'absence de maintenance à long terme et d'antiaimant.
PCT/CN2019/089881 2018-06-04 2019-06-03 Compteur bidirectionnel de haute précision pour la mesure de fluide WO2019233388A1 (fr)

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CN201810561476.0 2018-06-04
CN201810561476.0A CN108426619B (zh) 2018-06-04 2018-06-04 高精度双向计量电子水表

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CN108426619B (zh) * 2018-06-04 2024-08-27 杨辉军 高精度双向计量电子水表
CN109269578A (zh) * 2018-11-15 2019-01-25 嘉兴市威昌机电有限责任公司 一种智能水表
CN112216095A (zh) * 2020-11-05 2021-01-12 成都市三宇仪表科技发展有限公司 一种物联网水表的高速率红外通讯系统及方法
CN115773791B (zh) * 2022-11-30 2023-10-20 江苏棠梨智能科技有限公司 一种具有防磁干扰的智能水表

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000240558A (ja) * 1999-02-22 2000-09-05 Miura Co Ltd 流量計測機能を備えた発電装置
WO2004046656A1 (fr) * 2002-11-14 2004-06-03 Thierry Sartorius Systeme de surveillance du debit d'un fluide
CN2752728Y (zh) * 2004-07-26 2006-01-18 杨晖 高精度低成本双显示电子水表芯
JP2006170903A (ja) * 2004-12-17 2006-06-29 Shin Nippon Air Technol Co Ltd 発電機付流量計
CN103282751A (zh) * 2011-01-06 2013-09-04 W·梅纳特 用于确定在消费时间间隔内流过流量计的流体的质量的方法和设备
CN205719126U (zh) * 2016-04-07 2016-11-23 福建国仪上润投资有限公司 可测温压的磁感应脉冲计量水表
CN206161066U (zh) * 2016-11-08 2017-05-10 上海浩泽净水科技发展有限公司 一种应用于饮水机上的流量计装置
CN107525548A (zh) * 2016-06-20 2017-12-29 桓达科技股份有限公司 自发电蹼轮流量计
CN108426619A (zh) * 2018-06-04 2018-08-21 魏松涛 高精度双向计量电子水表
CN208588421U (zh) * 2018-06-04 2019-03-08 魏松涛 高精度双向计量电子水表

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105403270B (zh) * 2015-11-28 2018-07-17 怀化建南电子科技有限公司 一种可连接云控制平台的机械式水表
CN105737915A (zh) * 2016-04-07 2016-07-06 福建国仪上润投资有限公司 可测温压的磁感应脉冲计量水表

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000240558A (ja) * 1999-02-22 2000-09-05 Miura Co Ltd 流量計測機能を備えた発電装置
WO2004046656A1 (fr) * 2002-11-14 2004-06-03 Thierry Sartorius Systeme de surveillance du debit d'un fluide
CN2752728Y (zh) * 2004-07-26 2006-01-18 杨晖 高精度低成本双显示电子水表芯
JP2006170903A (ja) * 2004-12-17 2006-06-29 Shin Nippon Air Technol Co Ltd 発電機付流量計
CN103282751A (zh) * 2011-01-06 2013-09-04 W·梅纳特 用于确定在消费时间间隔内流过流量计的流体的质量的方法和设备
CN205719126U (zh) * 2016-04-07 2016-11-23 福建国仪上润投资有限公司 可测温压的磁感应脉冲计量水表
CN107525548A (zh) * 2016-06-20 2017-12-29 桓达科技股份有限公司 自发电蹼轮流量计
CN206161066U (zh) * 2016-11-08 2017-05-10 上海浩泽净水科技发展有限公司 一种应用于饮水机上的流量计装置
CN108426619A (zh) * 2018-06-04 2018-08-21 魏松涛 高精度双向计量电子水表
CN208588421U (zh) * 2018-06-04 2019-03-08 魏松涛 高精度双向计量电子水表

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114237648A (zh) * 2021-12-21 2022-03-25 上海中凯晋德电子科技有限公司 一种计量芯片烧录设备及计量芯片烧录系统

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