CN208567993U - A kind of ultrasonic wave water flow sensor - Google Patents
A kind of ultrasonic wave water flow sensor Download PDFInfo
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- CN208567993U CN208567993U CN201821155864.0U CN201821155864U CN208567993U CN 208567993 U CN208567993 U CN 208567993U CN 201821155864 U CN201821155864 U CN 201821155864U CN 208567993 U CN208567993 U CN 208567993U
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Abstract
The utility model relates to belong to liquid measure technical field, 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 utility model, 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 utility model relates to belong to liquid measure technical field, sensed more particularly, to a kind of ultrasonic wave water flow
Device.
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.
Utility model content
The utility model in order to overcome at least one of the drawbacks of the prior art described above, provides a kind of ultrasonic wave water flow biography
Sensor, ultrasonic transducer is easy for installation, easy to repair;Facilitated by debugging interface to its periodic calibration and software upgrading,
It is provided with pulse interface simultaneously, can be compatible with the controller of most of existing water heaters, generalization is strong.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of ultrasonic wave water flow sensor,
Including measurement pipeline section, ultrasonic wave controller, the first ultrasonic transducer and the second ultrasonic transducer, the ultrasonic wave control
Device includes 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;Described
Power 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 the driving of supersonic flow energy converter is super
The transmitting and reception of acoustic wave transducer signal, time difference acquisition, DATA REASONING etc.;Debugging interface and supersonic flow energy converter phase
Even, software debugging can be carried out to supersonic flow energy converter by the end PC upper computer software, pipeline flow is calibrated;Ultrasonic flow
Converter universal I/O port connects pulse interface, it can be achieved that level conversion and pulse output;Ultrasonic wave controller drives ultrasonic waves
Energy 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
It is fair current ultrasonic transducer set on the upstream side of water (flow) direction, the second ultrasonic transducer 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 is measured
Ultrasonic 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, first ultrasonic transducer and the second ultrasonic transducer of the utility model use signal
Directly 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.The ultrasonic wave controller of the utility model is arranged
There is a pulse interface, and the compatible 3V-5V level of this interface circuit, is preferably compatible with existing water heater controller signal level, 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. the utility model proposes ultrasonic wave water flow sensor be accessory form, signal output be flow pulse
Signal, compatible conventional Hall flow sensor can be passed without carrying out software and hardware change to water heater controller with Hall flow
Sensor carries out one-to-one substitution, and compatibility is adaptable;
2. the utility model proposes ultrasonic wave water flow sensor equipped with debugging interface, it is convenient it to be carried out periodically
Calibration and software upgrading, can software set specific discharge umber of pulse, meet water heater controller different flow umber of pulse demand,
Market adaptability is strong;
3. the utility model proposes ultrasonic wave water flow sensor pipeline section design structure, eliminate 45 ° of reflectings surface, letter
Change structure and production technology, is convenient for Project Realization.
Detailed description of the invention
Fig. 1 is the utility model ultrasonic flow sensor overall structure diagram.
Fig. 2 is the utility model ultrasonic flow sensor measuring system block schematic illustration.
Fig. 3 is the utility model ultrasonic wave water flow sensor structure 3 dimensional drawing.
Fig. 4 is the utility model ultrasonic flow sensor Standard schematic diagram.
Specific embodiment
Attached drawing only for illustration, should not be understood as limiting the present invention;In order to more preferably illustrate this implementation
Example, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product;For those skilled in the art
For, the omitting of some known structures and their instructions in the attached drawings are understandable.Positional relationship is described in attached drawing to be only used for
Exemplary illustration should not be understood as limiting the present 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 are set to the upstream side of water (flow) direction, are fair current ultrasonic transducer, and the second ultrasonic transducer 4 is set to the downstream of water (flow) direction
Side is counter current ultrasonic wave energy converter;Fair current ultrasonic transducer emits signal, and counter current ultrasonic wave energy converter is responsible for receiving signal;
Conversely, counter current ultrasonic wave energy converter emits signal, fair current ultrasonic transducer is responsible for receiving signal;Supersonic flow energy converter 21
Ultrasonic signal fair current and adverse current propagation time difference in a fluid are measured, 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, first ultrasonic transducer 3 and the second ultrasonic transducer 4 of the utility model use signal
Directly 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, the ultrasonic wave controller 2 of the utility model
It is provided with 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 embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
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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Cited By (1)
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CN108955789A (en) * | 2018-07-20 | 2018-12-07 | 广东万和新电气股份有限公司 | A kind of ultrasonic wave water flow sensor |
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CN108955789A (en) * | 2018-07-20 | 2018-12-07 | 广东万和新电气股份有限公司 | A kind of ultrasonic wave water flow sensor |
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