CN109682432A - A kind of ultrasonic measurement steam-flow meter - Google Patents
A kind of ultrasonic measurement steam-flow meter Download PDFInfo
- Publication number
- CN109682432A CN109682432A CN201910085300.7A CN201910085300A CN109682432A CN 109682432 A CN109682432 A CN 109682432A CN 201910085300 A CN201910085300 A CN 201910085300A CN 109682432 A CN109682432 A CN 109682432A
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- ultrasonic
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- transport pipeline
- vapor transport
- flow meter
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- 238000005259 measurement Methods 0.000 title claims abstract description 28
- 238000012545 processing Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 6
- 238000002604 ultrasonography Methods 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- G01F1/662—Constructional details
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a kind of ultrasonic measurement steam-flow meters, including vapor transport pipeline, ultrasonic transducer, ultrasonic wave emits processing circuit, analog switch, ultrasonic wave receiving processing circuit, single-chip microcontroller, temperature-measuring module, pressure measuring module, display module and wireless communication module, vapor transport pipeline two sides are equipped with mounting seat, each mounting seat is equipped with two groups of ultrasonic transducers, couplant is equipped between the super energy converter and vapor transport pipeline, the ultrasonic transducer is transmitting-receiving integrated structure, including ultrasonic wave transmitting circuit, ultrasonic signal source, ultrasonic sensor, and four groups of ultrasonic transducers are connected respectively on analog switch, the working condition that analog switch switches ultrasonic transducer is controlled by single-chip microcontroller, the invention has the benefit that heed contacted measure, to tested steam non-resistance, it is lossless Evil, can it is reliable, stablize, accurately steam flow measured.
Description
Technical field
The invention belongs to flowmeter field of instrumentation technology more particularly to a kind of ultrasonic measurement steam-flow meters.
Background technique
Traditional flow measurement of steam use mechanical flowmeter, main abacus flowmeter, precession spiral flowmeter and
The flowmeters such as vortex-shedding meter need with steam directly to contact flowmeter, are not easy to installation measurement and since machinery rotates
Component is easy to make its abrasion, or since sensor is by the pollution or even corrosion of medium, the performance of these flowmeters is caused to be easy to become
Difference, and its performance is affected by parameters such as detected fluid temperature, pressure, viscosity, density.
Compared to more above-mentioned measuring equipment, ultrasonic gas flowmeter occupies advantage in all various aspects, and ultrasonic measurement uses
Movable part is not present in without hindrance measuring technique, and energy consumption is low in measurement process, and sufficiently high fluid can be kept to survey for a long time
Accuracy of measurement, but since the type of ultrasonic flowmeter in the market is more, cost is relatively low, and overall measurement performance is not high, but for one
For the thicker pipeline of a little foulings, ultrasonic flowmeter, which exists, is not easy to receive signal decaying in signal or for a long time measurement
Problem influences the Exact Travelling of measurement.
Summary of the invention
In view of the above deficiencies, the present invention provides a kind of ultrasonic measurement steam-flow meter, heed contacted measures, to tested
Steam non-resistance, it is harmless, can it is reliable, stablize, accurately steam flow measured.
The present invention is achieved by the following technical solutions: a kind of ultrasonic measurement steam-flow meter, including vapor transport
Pipeline, ultrasonic transducer, ultrasonic wave transmitting circuit, analog switch, ultrasonic wave receiving processing circuit, single-chip microcontroller, temperature measure mould
Block, pressure measuring module, display module and wireless communication module, vapor transport pipeline two sides are equipped with mounting seat, each
Mounting seat is equipped with two groups of ultrasonic transducers, and couplant is equipped between the super energy converter and vapor transport pipeline, described
Ultrasonic transducer is transmitting-receiving integrated structure, including ultrasonic wave transmitting circuit, ultrasonic signal source, ultrasonic sensor, and four
Group ultrasonic transducer is connected respectively on analog switch, controls the work shape that analog switch switches ultrasonic transducer by single-chip microcontroller
State.
As a preferred technical solution of the present invention, ultrasonic wave transmitting circuit includes high-voltage pulse generating circuit, pulse
Booster, single-chip microcontroller issues signal control high-voltage pulse generating circuit and emits high-voltage pulse signal, after pulse booster boosts
Ultrasonic signal source both ends are acted on, ultrasonic signal is launched.
As a preferred technical solution of the present invention, the ultrasonic wave receiving processing circuit include pre-amplification circuit,
Bandwidth-limited circuit, automatic gain control circuit, peak holding circuit, voltage comparator circuit.
As a preferred technical solution of the present invention, four groups of ultrasonic transducers are transported in X-type distributing installation in steam
On defeated pipeline, the axis of the ultrasonic transducer and the axis angle of vapor transport pipeline are 45 °.
As a preferred technical solution of the present invention, the STM32 series monolithic chip of the single-chip microcontroller, control ultrasound
Switching, flow indication module and the wireless communication module of energy converter working condition.
As a preferred technical solution of the present invention, the temperature-measuring module and pressure measuring module pass through acquisition
Real-time temperature and pressure value compensates institute's measurement of discharge into reasonable.
Compared with prior art, the invention has the benefit that
1, by mounting seat and couplant, it can be realized the installation that ultrasonic transducer does not contact gas, it is thicker for fouling
Pipeline also can heed contacted measure, it is harmless to tested gas non-resistance, while improving the accuracy of measurement；
2, the ultrasonic signal received is subjected to a series of enhanced processings, improves the accuracy of measurement, circuit design is succinct, resists
Interference is strong.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is circuit overall structure block diagram in the present invention；
Fig. 3 is ultrasonic wave receiving processing circuit structural block diagram in the present invention.
Reference signs list: 1, vapor transport pipeline；2, ultrasonic transducer；3, mounting seat；4, couplant.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following specific embodiments are only
For illustrating the present invention rather than limiting the scope of the invention.It should be noted that word " preceding " used in the following description,
" rear ", "left", "right", "up" and "down" refer to that the direction in attached drawing, word "inner" and "outside" refer respectively to direction or remote
Direction from geometric center of specific component.
A kind of ultrasonic measurement steam-flow meter as depicted in figs. 1 and 2, including vapor transport pipeline 1, ultrasonic transducer 2,
Ultrasonic wave emits processing circuit, analog switch, ultrasonic wave receiving processing circuit, single-chip microcontroller, temperature-measuring module, pressure measurement mould
Block, display module and wireless communication module, 1 two sides of vapor transport pipeline are equipped with mounting seat 3, in each mounting seat 3
Equipped with two groups of ultrasonic transducers 2, couplant 4 is equipped between the super energy converter 2 and vapor transport pipeline 1, the ultrasound is changed
Energy device 2 is transmitting-receiving integrated structure, including ultrasonic wave transmitting circuit, ultrasonic signal source, ultrasonic sensor, and four groups ultrasonic
Energy converter 2 is connected respectively on analog switch, controls the working condition that analog switch switches ultrasonic transducer 2 by single-chip microcontroller,
The ultrasonic transducer 2 of 1 side of vapor transport pipeline emits ultrasonic signal, and the other end receives ultrasonic signal, then the letter that will be obtained
Number after a series of processing of ultrasonic reception processing circuit, electric signal is passed into single-chip microcontroller, completes ultrasonic wave in vapor transport
Along the time measurement in inverse both direction in pipeline 1, the speed that principle calculates vapor stream is sent out by the ultrasonic wave time difference, is realized
The measurement of high-precision ultrasonic steam flow, while by mounting seat 3 and couplant 4, it can be realized ultrasonic transducer 2 and do not connect
The installation of gas is touched, heed contacted measure is harmless to tested gas non-resistance.
As a kind of embodiment of the invention, ultrasonic wave transmitting circuit includes high-voltage pulse generating circuit, pulse booster,
Single-chip microcontroller issues signal control high-voltage pulse generating circuit and emits high-voltage pulse signal, acts on after pulse booster boosts super
Acoustic signal source both ends, launch ultrasonic signal.
As a kind of embodiment of the invention, as described in Figure 3, the ultrasonic wave receiving processing circuit includes preposition amplification electricity
Road, bandwidth-limited circuit, automatic gain control circuit, peak holding circuit, voltage comparator circuit, wherein the ultrasound of receiving end
Received ultrasonic signal is converted into electric signal by wave sensor, and received electric signal is faint sinusoidal signal, preceding storing at this time
Big circuit is second amplifying circuit, and faint sinusoidal model is amplified, bandwidth-limited circuit to amplified electric signal into
Row bandpass filtering eliminates low frequency and high frequency noise signal, and bandwidth-limited circuit is to be built with NE5532 chip, later by by
The automatic gain control circuit that VCA810 chip is built, keeps the stability of receiving-end voltage, and peak holding circuit uses two poles
The size of the ultrasonic signal received is fixed on some value by pipe holding circuit, and voltage comparator circuit is by the signal of collection
Amplitude passes to single-chip microcontroller compared with to given value, by comparison result, completes the reception processing of entire ultrasonic signal.
As a kind of embodiment of the invention, four groups of ultrasonic transducers 2 are in X-type distributing installation in vapor transport pipeline
On 1, the axis of the ultrasonic transducer 2 and the axis angle of vapor transport pipeline are 45 °.
As a kind of embodiment of the invention, the STM32 series monolithic chip of the single-chip microcontroller controls ultrasonic transducer
Switching, flow indication module and the wireless communication module of working condition, complete the display and wireless transmission of flow value.
As a kind of embodiment of the invention, the temperature-measuring module and pressure measuring module can be in calibration ultrasonic waves
Gas flow timing reasonably compensates institute's measurement of discharge by acquiring real-time temperature and pressure value.
Finally, it should be noted that being not intended to restrict the invention the foregoing is merely preferred embodiment of the invention, to the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, for those skilled in the art, still can be with
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in guarantor of the invention
Within the scope of shield.
Claims (6)
1. a kind of ultrasonic measurement steam-flow meter, it is characterised in that: including vapor transport pipeline, ultrasonic transducer, ultrasonic wave
Transmit circuit, analog switch, ultrasonic wave receiving processing circuit, single-chip microcontroller, temperature-measuring module, pressure measuring module, display mould
Block and wireless communication module, vapor transport pipeline two sides are equipped with mounting seat, and each mounting seat is equipped with two groups of ultrasounds
Energy converter, is equipped with couplant between the super energy converter and vapor transport pipeline, the ultrasonic transducer is transmitting-receiving integrated
Structure, including ultrasonic wave transmitting circuit, ultrasonic signal source, ultrasonic sensor, and four groups of ultrasonic transducers are connected respectively to
On analog switch, the working condition that analog switch switches ultrasonic transducer is controlled by single-chip microcontroller.
2. ultrasonic measurement steam-flow meter according to claim 1, it is characterised in that: ultrasonic wave transmitting circuit includes
High-voltage pulse generating circuit, pulse booster, single-chip microcontroller issue signal control high-voltage pulse generating circuit transmitting high-voltage pulse letter
Number, ultrasonic signal source both ends are acted on after pulse booster boosts, and launch ultrasonic signal.
3. ultrasonic measurement steam-flow meter according to claim 1, it is characterised in that: the ultrasonic wave reception processing
Circuit includes pre-amplification circuit, bandwidth-limited circuit, automatic gain control circuit, peak holding circuit, voltage comparator circuit.
4. ultrasonic measurement steam-flow meter according to claim 1, it is characterised in that: four groups of ultrasonic transducers
In X-type distributing installation on vapor transport pipeline, the axis angle of the axis and vapor transport pipeline of the ultrasonic transducer is equal
It is 45 °.
5. ultrasonic measurement steam-flow meter according to claim 1, it is characterised in that: the STM32 of the single-chip microcontroller
Series monolithic chip controls switching, flow indication module and the wireless communication module of ultrasonic transducer working condition.
6. ultrasonic measurement steam-flow meter according to claim 1, it is characterised in that: the temperature-measuring module and
Pressure measuring module compensates institute's measurement of discharge into reasonable by acquiring real-time temperature and pressure value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910085300.7A CN109682432A (en) | 2019-01-29 | 2019-01-29 | A kind of ultrasonic measurement steam-flow meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910085300.7A CN109682432A (en) | 2019-01-29 | 2019-01-29 | A kind of ultrasonic measurement steam-flow meter |
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| Publication Number | Publication Date |
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| CN109682432A true CN109682432A (en) | 2019-04-26 |
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| CN201910085300.7A Pending CN109682432A (en) | 2019-01-29 | 2019-01-29 | A kind of ultrasonic measurement steam-flow meter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112019989A (en) * | 2020-08-13 | 2020-12-01 | 浙江苍南仪表集团股份有限公司 | Dynamic performance testing device for ultrasonic transducer |
| CN113514118A (en) * | 2021-06-25 | 2021-10-19 | 罗美特（上海）自动化仪表股份有限公司 | Ultrasonic flowmeter and using method |
| CN113701835A (en) * | 2021-08-30 | 2021-11-26 | 安徽理工大学 | High-precision self-correcting ultrasonic coal bed gas extraction pipe network flowmeter |
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| US20180010943A1 (en) * | 2015-03-24 | 2018-01-11 | Hefei University Of Technology | Ultrasonic gas flow meter based on fpga and dsp |
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| CN108917864A (en) * | 2018-07-10 | 2018-11-30 | 重庆邮电大学 | A kind of quadraphonic ultrasonic gas flowmeter of timesharing measurement |
| CN108955788A (en) * | 2018-05-22 | 2018-12-07 | 常州大学 | A kind of contactless time difference method high-precision ultrasonic gas flowmeter |
| CN209372157U (en) * | 2019-01-29 | 2019-09-10 | 安徽天康(集团)股份有限公司 | A kind of ultrasonic measurement steam-flow meter |
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| CN201828295U (en) * | 2010-10-28 | 2011-05-11 | 利尔达科技有限公司 | Phase difference type ultrasonic wave flow metering device |
| CN103471665A (en) * | 2012-06-07 | 2013-12-25 | 中国石油化工股份有限公司 | Ultrasonic online detection device and method for liquid flow |
| CN104535141A (en) * | 2014-12-23 | 2015-04-22 | 重庆川仪自动化股份有限公司 | Flow speed simulating system and method of ultrasonic flowmeter |
| US20180010943A1 (en) * | 2015-03-24 | 2018-01-11 | Hefei University Of Technology | Ultrasonic gas flow meter based on fpga and dsp |
| CN205002814U (en) * | 2015-04-23 | 2016-01-27 | 南京信卓电子科技实业有限公司 | Ultrasonic wave gas flowmeter |
| CN207036192U (en) * | 2017-05-27 | 2018-02-23 | 上海一诺仪表有限公司 | Gas liquid two purpose ultrasonic flowmeter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112019989A (en) * | 2020-08-13 | 2020-12-01 | 浙江苍南仪表集团股份有限公司 | Dynamic performance testing device for ultrasonic transducer |
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| CN113514118A (en) * | 2021-06-25 | 2021-10-19 | 罗美特（上海）自动化仪表股份有限公司 | Ultrasonic flowmeter and using method |
| CN113701835A (en) * | 2021-08-30 | 2021-11-26 | 安徽理工大学 | High-precision self-correcting ultrasonic coal bed gas extraction pipe network flowmeter |
| CN113701835B (en) * | 2021-08-30 | 2023-12-08 | 安徽理工大学 | High-precision self-correction ultrasonic coal bed gas extraction pipe network flowmeter |
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