CN108955789A - A kind of ultrasonic wave water flow sensor - Google Patents
A kind of ultrasonic wave water flow sensor Download PDFInfo
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- CN108955789A CN108955789A CN201810804393.XA CN201810804393A CN108955789A CN 108955789 A CN108955789 A CN 108955789A CN 201810804393 A CN201810804393 A CN 201810804393A CN 108955789 A CN108955789 A CN 108955789A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000005259 measurement Methods 0.000 claims abstract description 46
- 238000009434 installation Methods 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 abstract description 2
- 230000000737 periodic effect Effects 0.000 abstract description 2
- 230000008439 repair process Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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
- G01F1/66—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
-
- 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
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Volume Flow (AREA)
Abstract
The present invention relates to liquid measure technical field is belonged to, more particularly, to a kind of ultrasonic wave water flow sensor.Including measurement pipeline section, ultrasonic wave controller, the first ultrasonic transducer and the second ultrasonic transducer, it is characterized in that, the ultrasonic wave controller includes supersonic flow energy converter, debugging interface and pulse interface, first ultrasonic transducer and the second ultrasonic transducer is removably mounted to the both ends of measurement pipeline section, is electrically connected with supersonic flow energy converter；The debugging interface and pulse interface is electrically connected with supersonic flow energy converter.Ultrasonic flow sensor provided by the invention, ultrasonic transducer is easy for installation, easy to repair；Facilitate periodic calibration and software upgrading by debugging interface, various flow rate sensor can be compatible with by pulse interface.
Description
Technical field
The present invention relates to liquid measure technical field is belonged to, more particularly, to a kind of ultrasonic wave water flow sensor.
Background technique
Household fast gas heater needs to carry out output power according to actual water flow, hydraulic pressure and inlet and outlet temperature
It adjusts in real time, therefore accurately water flow data is the premise that household fast gas heater realizes accurate temperature controlling.Traditional heat
Hydrophone rotor Hall flow meter, because Impeller Machining process consistency is low, precision stability is difficult to ensure；Simultaneously because impeller, steady
Flowing device, there are drag effects, and fluid initial-flow is big, and impeller bearing mechanical wear is fast, easily blocks damage by scale in water or impurity
Bad, service life is short.
With electronic technology development, ultrasonic wave water flow have the characteristics that measurement accuracy it is high, to detected fluid without crushing,
It is widely used in industry, measuring instrument, measuring principle is measured using time difference method mostly.Ultrasonic tube section design surpasses
The mounting means of acoustic wave transducer is different, method of calculating flux used difference；For oblique correlation or reflection type ultrasonic
There are angle, flow rate calculation is complicated for wave flow sensor, detected fluid and ultrasonic wave propagation path；To simplify mathematical computations, industry
Interior proposition reflected parallel formula ultrasonic flow sensor, i.e., the flow direction of fluid is parallel with ultrasonic wave propagation path in measurement pipeline section,
But it measures pipeline section domestic demand and two 45 degree of reflectings surface is set, structure process is complicated.
Current most of ultrasonic flow sensor data output interfaces use communication data interface, with external micro process
Device establishes communication, and external microprocessor obtains data on flows by communications protocol format parsing data frame；However, gas heater control
Device flow information acquisition interface processed is not communication interface, is not related to communication protocol, is only simply counted to external flow pulse；
Ultrasonic flow sensor data output interface is communication data interface, cannot be compatible with existing water heater controller pulse interface,
There are certain limitations for popularization and application, and ultrasonic flow sensor is not equipped with debugging interface, can not carry out regular school to it
Quasi- and software upgrading.
Summary of the invention
The present invention in order to overcome at least one of the drawbacks of the prior art described above, provides a kind of ultrasonic wave water flow sensing
Device, ultrasonic transducer is easy for installation, easy to repair；It is convenient to its periodic calibration and software upgrading by debugging interface, together
When it is provided with pulse interface, the controller of most of existing water heaters can be compatible with, generalization is strong.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of ultrasonic wave water flow sensor, including
Measure pipeline section, ultrasonic wave controller, the first ultrasonic transducer and the second ultrasonic transducer, the ultrasonic wave controller packet
Include supersonic flow energy converter, debugging interface and pulse interface, power circuit, first ultrasonic transducer and second
Ultrasonic transducer is removably mounted to the both ends of measurement pipeline section, is electrically connected with supersonic flow energy converter；The power supply
Circuit, debugging interface and pulse interface are electrically connected with supersonic flow energy converter.First ultrasonic transducer and second
Ultrasonic transducer is connected to the ultrasonic wave AFE(analog front end) of supersonic flow energy converter, and supersonic flow energy converter drives ultrasonic wave
The transmitting and reception of transducer signal, time difference acquisition, DATA REASONING etc.；Debugging interface is connected with supersonic flow energy converter,
Software debugging can be carried out to supersonic flow energy converter by the end PC upper computer software, pipeline flow is calibrated；Ultrasonic flow turns
Parallel operation universal I/O port connects pulse interface, it can be achieved that level conversion and pulse output；Ultrasonic wave controller drives ultrasonic wave transducer
Device carries out signal transmitting and receives, the time difference acquires, data processing, and by flow pulse number corresponding relationship that pulse signal is defeated
Out, therefore the Hall flow sensor of replaceable existing water heater controller；In the present invention, the first ultrasonic transducer is set to
The upstream side of water (flow) direction is fair current ultrasonic transducer, and the second ultrasonic transducer is set to the downstream side of water (flow) direction, is inverse
Flow ultrasonic transducer；Fair current ultrasonic transducer emits signal, and counter current ultrasonic wave energy converter is responsible for receiving signal；Conversely, inverse
It flows ultrasonic transducer and emits signal, fair current ultrasonic transducer is responsible for receiving signal；Supersonic flow energy converter measures ultrasound
Wave signal fair current and adverse current propagation time difference in a fluid, acquire flow further according to algorithm.
Further, first ultrasonic transducer and the coaxial arrangement of the second ultrasonic transducer, ultrasonic wave letter
Number propagation path is parallel with detected fluid flow direction.First ultrasonic transducer and the second ultrasonic transducer are at measurement pipeline section both ends
The coaxial installation in face, signal is directly to penetrating, it is ensured that ultrasonic signal propagation path is parallel with detected fluid flow direction.With reflected parallel
The comparison of formula ultrasonic flow sensor, the first ultrasonic transducer of the invention are direct using signal with the second ultrasonic transducer
To the mode penetrated, 45 ° of reflectings surface are eliminated in the structure of pipeline section to measure, simplify structure, more conducively Project Realization.
Further, temperature sensor is additionally provided on the measurement pipeline section.Setting temperature sensor is for acquiring fluid
Temperature, it is more accurate to the measurement of the temperature of fluid.
Further, first ultrasonic transducer and the second ultrasonic transducer are connected by pressing plate and measurement pipeline section
It connects, pressing plate is fixed by bolts on measurement pipeline section；In the first ultrasonic transducer and the second ultrasonic transducer and measurement pipe
Section junction is additionally provided with sealing ring.Sealing ring is placed between ultrasonic transducer and measurement pipeline section end face to be sealed；Pressing plate pressure
Ultrasonic transducer with measurement pipeline section connect；Pressing plate is locked with measurement pipeline section by bolt；In this way, convenient for ultrasound
The installation, maintenance of wave transducer.
Preferably, the spacing between first ultrasonic transducer and the second ultrasonic transducer be 50mm ~
80mm；The internal diameter for measuring pipeline section is 10mm ~ 15mm.Ultrasonic transducer distance will affect ultrasonic wave in ultrasonic flow sensor
The critical size parameter whether signal receiving strength and signal are overlapped, by the first ultrasonic transducer and the second ultrasonic waves
Energy device spacing is set as 50mm ~ 80mm, and measurement effect is best.
Further, connector is additionally provided at the water inlet end of the measurement pipeline section, connector is equipped with measurement connection between pipe sections
Sealing ring.Connector is set on measurement pipeline section, convenient for connecting with other devices, setting sealing ring realizes the leakproofness of pipeline, keeps away
Exempt from leak.
Further, the measurement pipeline section is equipped with the installation room for installing ultrasonic wave controller.In measurement pipeline section
Room is installed in upper setting, convenient for the installation of ultrasonic wave controller, while also being played waterproof action to ultrasonic wave controller, is realized super
Acoustic wave flow sensor measures pipeline section and controller integral, facilitates installation, maintenance and replacement.
Further, the debugging interface is SPI communication interface.The debugging interface that ultrasonic wave controller is equipped with is SPI
Communication interface, Flow Measuring System can connect PC by debugging interface, carry out software tune to measuring system with upper computer software
Examination, pipeline section calibration and flow pulse number adjustment output, software change flexibly, market adaptability it is stronger.
Further, the pulse interface can be compatible with 3V ~ 5V level.Ultrasonic wave controller of the invention is provided with arteries and veins
Interface, and the compatible 3V-5V level of this interface circuit are rushed, existing water heater controller signal level is preferably compatible with, it can be with Hall
Flow sensor carries out one-to-one substitution, without being modified to former water heater controller.
Preferably, the measurement pipeline section is in U-shape structure, the first ultrasonic transducer and the second ultrasonic transducer
Set on the both ends of U-shaped structure bottom.Ultrasonic wave water flow sensor measurement pipeline section is designed like U-shaped structure, and fluid is in pipeline section
Flowing in cavity, the first ultrasonic transducer and the second ultrasonic transducer are set to the both ends of U-shaped structure bottom, and signal is directly right
It penetrates, it is ensured that ultrasonic signal propagation path is parallel with detected fluid flow direction.
Compared with prior art, beneficial effect is:
1. ultrasonic wave water flow sensor proposed by the present invention is accessory form, signal output is traffic pulse, compatible
Conventional Hall flow sensor can be carried out without carrying out software and hardware change to water heater controller with Hall flow sensor
One-to-one substitution, compatibility are adaptable；
2. ultrasonic wave water flow sensor proposed by the present invention is equipped with debugging interface, it is convenient it is regularly calibrated and
Software upgrading, can software set specific discharge umber of pulse, meet water heater controller different flow umber of pulse demand, market fit
Property is strong；
3. ultrasonic wave water flow sensor pipeline section design structure proposed by the present invention, eliminates 45 ° of reflectings surface, simplifies structure
And production technology, it is convenient for Project Realization.
Detailed description of the invention
Fig. 1 is ultrasonic flow sensor overall structure diagram of the present invention.
Fig. 2 is ultrasonic flow sensor measuring system block schematic illustration of the present invention.
Fig. 3 is ultrasonic wave water flow sensor structure 3 dimensional drawing of the present invention.
Fig. 4 is ultrasonic flow sensor Standard schematic diagram of the present invention.
Specific embodiment
Attached drawing only for illustration, is not considered as limiting the invention；In order to better illustrate this embodiment, attached
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.Being given for example only property of positional relationship is described in attached drawing
Illustrate, is not considered as limiting the invention.
As shown in Figures 1 to 4, a kind of ultrasonic wave water flow sensor, including measurement pipeline section 1, ultrasonic wave controller 2, first
Ultrasonic transducer 3 and the second ultrasonic transducer 4, ultrasonic wave controller 2 include supersonic flow energy converter 21, debugging interface
22 and pulse interface 23, power circuit 24, the first ultrasonic transducer 3 and the second ultrasonic transducer 4 be removably mounted to
The both ends for measuring pipeline section 1 are electrically connected with supersonic flow energy converter 21；Power circuit 24, debugging interface 22 and pulse connect
Mouth 23 is electrically connected with supersonic flow energy converter 21.First ultrasonic transducer 3 and the second ultrasonic transducer 4 are connected to
The ultrasonic wave AFE(analog front end) of supersonic flow energy converter 21, supersonic flow energy converter 21 drive the hair of ultrasonic transducer signal
It penetrates and receives, time difference acquisition, DATA REASONING etc.；Debugging interface 22 is connected with supersonic flow energy converter 21, can pass through the end PC
Upper computer software carries out software debugging to supersonic flow energy converter 21, pipeline flow is calibrated；Supersonic flow energy converter 21 is logical
Pulse interface 23 is connected with I/O port, it can be achieved that level conversion and pulse output；2 module drive ultrasonic wave transducer of ultrasonic wave controller
Device carries out signal transmitting and receives, the time difference acquires, data processing, and by flow pulse number corresponding relationship that pulse signal is defeated
Out, therefore the Hall flow sensor of replaceable existing water heater controller；In the present invention, the first ultrasonic transducer 3 is set
It is fair current ultrasonic transducer in the upstream side of water (flow) direction, the second ultrasonic transducer 4 is set to the downstream side of water (flow) direction,
For counter current ultrasonic wave energy converter；Fair current ultrasonic transducer emits signal, and counter current ultrasonic wave energy converter is responsible for receiving signal；Instead
It, counter current ultrasonic wave energy converter emits signal, and fair current ultrasonic transducer is responsible for receiving signal；Supersonic flow energy converter 21 is surveyed
Ultrasonic signal fair current and adverse current propagation time difference in a fluid out, acquires flow further according to algorithm.
Specifically, measurement pipeline section 1 is in U-shape structure, the first ultrasonic transducer 3 and the second ultrasonic transducer 4 set on U-shaped
The both ends of structural base.First ultrasonic transducer 3 and the coaxial arrangement of the second ultrasonic transducer 4, ultrasonic signal propagation
Path is parallel with detected fluid flow direction.First ultrasonic transducer 3 and the second ultrasonic transducer 4 are in measurement 1 both ends of the surface of pipeline section
Coaxial installation, signal is directly to penetrating, it is ensured that ultrasonic signal propagation path is parallel with detected fluid flow direction.With reflected parallel formula
Ultrasonic flow sensor comparison, the first ultrasonic transducer 3 of the invention are direct using signal with the second ultrasonic transducer 4
To the mode penetrated, 45 ° of reflectings surface are eliminated in the structure of pipeline section to measure, simplify structure, more conducively Project Realization.
In some embodiments, it measures on pipeline section 1 and is additionally provided with temperature sensor 5.Temperature sensor 5 is set for acquiring stream
The temperature of body, it is more accurate to the temperature measurement of fluid.
In some embodiments, the first ultrasonic transducer 3 and the second ultrasonic transducer 4 pass through pressing plate 6 and measurement pipe
Section 1 connects, and pressing plate 6 is fixed by bolts on measurement pipeline section 1；In the first ultrasonic transducer 3 and the second ultrasonic transducer 4
Sealing ring 7 is additionally provided with measurement 1 junction of pipeline section.Sealing ring 7 is placed between ultrasonic transducer and measurement 1 end face of pipeline section to carry out
Sealing；Pressing plate 6 is pressing against ultrasonic transducer and is connecting with measurement pipeline section 1；Pressing plate 6 is locked with measurement pipeline section 1 by bolt；This
Sample setting, convenient for the installation, maintenance of ultrasonic transducer.
In some embodiments, the spacing between the first ultrasonic transducer 3 and the second ultrasonic transducer 4 be 50mm ~
80mm；The internal diameter for measuring pipeline section 1 is 10mm ~ 15mm.Ultrasonic transducer distance will affect ultrasound in ultrasonic flow sensor
The critical size parameter whether wave signal receiving strength and signal are overlapped, by the first ultrasonic transducer 3 and the second ultrasonic wave
4 spacing of energy converter is set as 50mm ~ 80mm, and measurement effect is best.
In some embodiments, it measures and is additionally provided with connector 8 at the water inlet end of pipeline section 1, connector 8 and measurement 1 junction of pipeline section
Equipped with sealing ring 7.Connector 8 is set on measurement pipeline section 1, convenient for connecting with other devices, setting sealing ring 7 realizes the close of pipeline
Feng Xing avoids leak.
In some embodiments, measurement pipeline section 1 is equipped with the installation room 9 for installing ultrasonic wave controller 2.In measurement pipe
Setting installation room 9, convenient for the installation of ultrasonic wave controller 2, while also playing waterproof action to ultrasonic wave controller 2 in section 1,
It realizes ultrasonic flow sensor measurement pipeline section 1 and controller integral, facilitates installation, maintenance and replacement.
In some embodiments, debugging interface 22 is SPI communication interface.The debugging interface 22 that ultrasonic wave controller 2 is equipped with
For SPI communication interface, Flow Measuring System can connect PC by debugging interface 22, carry out with upper computer software to measuring system
Software debugging, pipeline section calibration and the adjustment output of flow pulse number, software change is flexible, market adaptability is stronger.Pulse interface
23 can be compatible with 3V ~ 5V level.For more preferably compatible conventional Hall flow sensor, ultrasonic wave controller 2 of the invention is arranged
There are pulse interface 23, and the compatible 3V-5V level of this interface circuit, compatible existing water heater controller signal level can be with Hall
Flow sensor carries out one-to-one substitution, without being modified to former water heater controller.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of ultrasonic wave water flow sensor, including measurement pipeline section (1), ultrasonic wave controller (2), the first ultrasonic transducer
(3) and the second ultrasonic transducer (4), which is characterized in that the ultrasonic wave controller (2) includes supersonic flow energy converter
(21), debugging interface (22) and pulse interface (23), first ultrasonic transducer (3) and the second ultrasonic transducer
(4) both ends of measurement pipeline section (1) are removably mounted to, are electrically connected with supersonic flow energy converter (21)；The debugging connects
Mouth (22) and pulse interface (23) are electrically connected with supersonic flow energy converter (21).
2. a kind of ultrasonic wave water flow sensor according to claim 1, which is characterized in that first ultrasonic waves
Energy device (3) and the second ultrasonic transducer (4) coaxial arrangement, ultrasonic signal propagation path are parallel with detected fluid flow direction.
3. a kind of ultrasonic wave water flow sensor according to claim 2, which is characterized in that the measurement pipeline section (1)
On be additionally provided with temperature sensor (5).
4. a kind of ultrasonic wave water flow sensor according to claim 3, which is characterized in that first ultrasonic waves
Energy device (3) and the second ultrasonic transducer (4) are connect by pressing plate (6) with measurement pipeline section (1), and pressing plate (6) is bolted
In in measurement pipeline section (1)；In the first ultrasonic transducer (3) and the second ultrasonic transducer (4) and measurement pipeline section (1) junction
It is additionally provided with sealing ring (7).
5. a kind of ultrasonic wave water flow sensor according to claim 3, which is characterized in that first ultrasonic waves
Spacing between energy device (3) and the second ultrasonic transducer (4) is 50mm ~ 80mm；Measure pipeline section (1) internal diameter be 10mm ~
15mm。
6. a kind of ultrasonic wave water flow sensor according to claim 3, which is characterized in that the measurement pipeline section (1)
On be additionally provided with connector (8), connector (8) and measurement pipeline section (1) junction be equipped with sealing ring (7).
7. a kind of ultrasonic wave water flow sensor according to any one of claims 1 to 6, which is characterized in that the survey
Buret section (1) is equipped with the installation room (9) for installing ultrasonic wave controller (2).
8. a kind of ultrasonic wave water flow sensor according to claim 7, which is characterized in that the debugging interface (22)
For SPI communication interface.
9. a kind of ultrasonic wave water flow sensor according to claim 7, which is characterized in that the pulse interface (23)
Compatible 3V ~ 5V level.
10. a kind of ultrasonic wave water flow sensor according to claim 7, which is characterized in that the measurement pipeline section (1)
Be in U-shape structure, and the first ultrasonic transducer (3) and the second ultrasonic transducer (4) are set to the both ends of U-shaped structure bottom.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810804393.XA CN108955789A (en) | 2018-07-20 | 2018-07-20 | A kind of ultrasonic wave water flow sensor |
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| CN201810804393.XA CN108955789A (en) | 2018-07-20 | 2018-07-20 | A kind of ultrasonic wave water flow sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111595397A (en) * | 2020-04-24 | 2020-08-28 | 清华大学 | Measuring pipe body structure for ultrasonic gas meter |
| CN112985534A (en) * | 2021-02-05 | 2021-06-18 | 山东三宇智能装备有限公司 | Ultrasonic counting sensor for mechanical water meter test and working method thereof |
| CN114509379A (en) * | 2022-04-19 | 2022-05-17 | 华南理工大学 | Water permeable and water purifying characteristic testing integrated device and testing method |
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