CN206291930U - A kind of ultrasonic wave mass flowmenter - Google Patents
A kind of ultrasonic wave mass flowmenter Download PDFInfo
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- CN206291930U CN206291930U CN201621412110.XU CN201621412110U CN206291930U CN 206291930 U CN206291930 U CN 206291930U CN 201621412110 U CN201621412110 U CN 201621412110U CN 206291930 U CN206291930 U CN 206291930U
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Abstract
The utility model discloses a kind of ultrasonic wave mass flowmenter, it includes:For the pipeline that fluid passes through, at least one set of ultrasonic sensor on the pipeline, and measurement host;Wherein, the described ultrasonic sensor transmitting of measurement host control and reception signal, so as to obtain mass flow value.The ultrasonic sensor includes:Ultrasonic transmitter and ultrasonic receiver, ultrasonic transmitter and ultrasonic receiver are respectively arranged at the upper and lower both sides of pipeline, and in the same face through the axis of piping.The ultrasonic wave mass flowmenter, ultrasonic wave can complete the measurement compared with high measurement accuracy with its high frequency characteristics, higher to mass flow measurement precision.Apparatus structure is simplified, and sensor adds main frame, without complicated machinery part.Plurality of liquid mass flow measurement is applicable to, to measurement object diversification.The individual item parameter that fluid measured can be treated carries out comprehensive analysis, and the information such as fluid density, temperature energy can also be measured simultaneously in mass metering flow.
Description
Technical field
The utility model is related to flowmeter technology field, more particularly to a kind of ultrasonic wave mass flowmenter.
Background technology
Current mass measuring method is various, such as:Coriolis mass flowmeter, differential mass flowmenter, combined type flow is surveyed
Amount etc..
But, existing measurement of correlation instrument has following defect:1. certainty of measurement is uneven;2. instrument adaptability is poor.
Some measuring instruments can only be measured to fixed fluid, can only such as measure gas, it is impossible to adapt to multiple fluid;3. precision compared with
Instrument general measure platform high is complex, and operation and maintenance is more bothered, and structure is simplified and is easy to the instrument of application mostly smart
Degree is relatively low, and both are difficult to same.
More importantly above instrument can not all treat fluid measured each side physical parameter and carry out comprehensive measurement, such as flow
Gauge measurement of discharge, densitometer only surveys density etc..In sum, existing fluid physics parametric measurement instrument is in technology and method
Measure field environment can not be widely adapted to, cannot comprehensively be provided in measurement result and be treated fluid measured parameters.
Utility model content
The purpose of this utility model is to provide a kind of ultrasonic wave mass flowmenter, for solving existing mass flowmenter
The technical problem of measure field cannot be widely used in.
To reach above-mentioned purpose, the technical scheme that the utility model is proposed is:
A kind of ultrasonic wave mass flowmenter of the present utility model, it includes:For the pipeline that fluid passes through, located at the pipe
At least one set of ultrasonic sensor on road, and measurement host;Wherein, the described ultrasonic wave of described measurement host control is passed
Sensor is launched and receives signal, so as to obtain mass flow value.
Wherein, the ultrasonic sensor includes:Ultrasonic transmitter and ultrasonic receiver, wherein described ultrasonic wave
Transmitter and ultrasonic receiver are respectively arranged at the upper and lower both sides of pipeline, and in the same face through the axis of piping.
Wherein, described ultrasonic sensor is two groups, two groups of ultrasonic sensors be respectively in pipeline it is different through pipeline
Axis face on.
Wherein, the temperature sensor for detecting the fluid temperature (F.T.) flowed through in pipeline is additionally provided with described pipeline, it is described
Temperature sensor is electrically connected to detection main frame.
Wherein, the two ends of described pipeline are additionally provided with the terminal pad of extension, and the terminal pad is provided with connecting hole.
Wherein, the display screen for showing detection data is additionally provided with described measurement host.
Ultrasonic wave mass flowmenter disclosed in the utility model, beneficial effect compared to existing technologies is, ultrasonic
Ripple can complete the measurement compared with high measurement accuracy with its high frequency characteristics, higher to mass flow measurement precision.Apparatus structure is simplified, and is passed
Sensor adds main frame, without complicated machinery part.Plurality of liquid mass flow measurement is applicable to, to measurement object diversification.Can
The individual item parameter for treating fluid measured carries out comprehensive analysis, and fluid density, temperature energy can also be measured simultaneously in mass metering flow
The information such as amount.
Brief description of the drawings
Fig. 1 is the front view of the utility model ultrasonic wave mass flowmenter.
Fig. 2 is the front view of the utility model ultrasonic wave mass flowmenter.
Fig. 3 is the left view of the utility model ultrasonic wave mass flowmenter.
Fig. 4 is the sectional view of Fig. 3.
Specific embodiment
Below with reference to accompanying drawing, give the utility model further elaboration.
Accompanying drawing 1 to accompanying drawing 4 is referred to, in the present embodiment, the ultrasonic wave mass flowmenter, it includes:For fluid warp
The pipeline 1 crossed, at least one set of ultrasonic sensor 3 on the pipeline 1, and measurement host 2;Wherein, described survey
Amount main frame 2 controls described ultrasonic sensor 3 to launch and receive signal, so as to obtain mass flow value.
Wherein, the ultrasonic sensor 3 includes:Ultrasonic transmitter and ultrasonic receiver, wherein described ultrasound
Wave launcher and ultrasonic receiver are respectively arranged at pipeline about 1 both sides, and in the same face through the axis of piping.
In the present embodiment, described ultrasonic sensor 3 is two groups, and two groups of ultrasonic sensors are respectively in pipeline difference
The face through the axis of pipeline on.In other embodiments, ultrasonic sensor 3 can also be multigroup, so as to improve detection
Precision.Multichannel ultrasonic flow metered flow principle is essentially identical with monophonic ultrasonic flowmeter, simply in flow during flow measurement
Section on laid multiple sensors.By accurately measure ultrasonic wave in each sound channel along current forward and it is reverse propagate when
Difference, outflow is calculated with the method for weighted integral.Because the flow velocity of each point in large diameter pipeline is different, if with 1 point
Flow relocity calculation flow, error is often very big.This problem is just solved using multichannel ultrasonic flow meter, and is greatly carried
The measurement of flow high is accurate.
Wherein, the temperature sensor 4 for detecting the fluid temperature (F.T.) flowed through in pipeline 1, institute are additionally provided with described pipeline
State temperature sensor 4 and be electrically connected to detection main frame 2.Ultrasonic wave mass sensor in the embodiment can detect fluid simultaneously
Temperature.
Referring to accompanying drawing 3, the two ends of described pipeline 1 are additionally provided with the terminal pad 11 of extension, are set in the terminal pad
There is connecting hole 11, the leg 112 for supporting is additionally provided with outside the duct wall of pipeline 1.
Wherein, the display screen 21 for display data is additionally provided with main frame 2, inside is additionally provided with PCB control boards 22.
(please specifically supplementing the functional module of PCB control boards, and technical parameter)
The operation principle of the ultrasonic wave mass flowmenter is as follows:
Measurement model includes two parts of main frame and ultrasonic transmission/reception sensor, and main frame completes the sequential to ultrasonic transmission/reception
Control, the sequential uses repeating query mode, analysis, calculating and the output to experimental result of ultrasonic signal.
Measuring method:
To two parts that are divided into of mass flow, the i.e. measurement of fluid instantaneous volume flow rate and fluid density measurement, the two
The measurement of parameter can be completed using ultrasonic listening identification technology.
Instantaneous volume flow rate is measured:Ultrasonic transmission/reception is carried out between transmitter and the receiver probe of sonac, when
There is fluid stream out-of-date, the ultrasonic signal received by sensor can carry certain flow information in time domain.First, by right
The Analysis of Character In Time Domain of ultrasonic signal obtains flow rate information.Flowmeter uses the measuring principle of time difference system.Using sensor
Propagation of the ultrasonic wave for sending in the fluid for flowing, downbeam acoustic wave propagation velocity can increase, and countercurrent direction then reduces,
Just there are different transmission times in same propagation distance, the relation between difference and detected fluid flow velocity according to transmission time is measured
The flow velocity of fluid.
Diverse location of the flow velocity of fluid in pipe is different, and the flow velocity in its pipe center is than the flow velocity near tube wall
Hurry up.Fluid velocity flow profile in the duct can be represented with flow velocity cross-sectional distribution figure.By the setting to flowmeter, and consider stream
The cross-sectional distribution influence of speed, such that it is able to calculate mean flow rate, the sectional area further according to pipeline draws the volume flow of fluid.
Wherein:
V fluid velocities;M ultrasonic reflections number of times;D calibers;Angle between θ ultrasonic signals and fluid;Tup downstreams pass
Sensor transmits signals to the time of upstream;Tdown upstream sensors transmit signals to the time in downstream;Δ T=Tup-Tdown;
Secondly, by known caliber, the on-site parameters such as management and control area converse instantaneous volume flow rate Qv.Fluid density is surveyed
Amount:It can be seen from ultrasonic wave propagation characteristic in a fluid:
C is ultrasonic velocity in fluid, and k is fluid compressibility, and ρ is fluid density, using in main frame during ultrasonic transmission/reception
Sequence control system measures ultrasonic wave hourage, and ultrasonic velocity, ultrasonic wave in fluid are calculated according to existing mounting distance information
Speed is equal to ultrasonic propagation distance divided by the propagation time, brings above formula into and draws fluid density information.
According to formula after fluid density and fluid instantaneous volume flow rate is obtained:Qm=ρ * Qv;Qm is instantaneous mass flow,
ρ is fluid density, and Qv is fluid instantaneous volume flow rate.Fluid instantaneous mass flow information is calculated, at the same time, we are also
Can obtain, fluid density, the derivation information such as volume flow.
The above, preferred embodiment only of the present utility model, is not intended to limit embodiment of the present utility model,
Those of ordinary skill in the art can very easily carry out corresponding accommodation according to central scope of the present utility model and spirit
Or modification, therefore protection domain of the present utility model should be defined by the protection domain required by claims.
Claims (6)
1. a kind of ultrasonic wave mass flowmenter, it is characterised in that including:For the pipeline that fluid passes through, on the pipeline
At least one set of ultrasonic sensor, and measurement host;Wherein, the described ultrasonic sensor of described measurement host control
Transmitting and reception signal, so as to obtain mass flow value.
2. ultrasonic wave mass flowmenter as claimed in claim 1, it is characterised in that the ultrasonic sensor includes:Ultrasound
Wave launcher and ultrasonic receiver, wherein described ultrasonic transmitter and ultrasonic receiver to be respectively arranged at pipeline upper and lower
Both sides, and in the same face through the axis of piping.
3. ultrasonic wave mass flowmenter as claimed in claim 2, it is characterised in that described ultrasonic sensor is two groups,
Two groups of ultrasonic sensors are respectively on the different face through the axis of pipeline of pipeline.
4. ultrasonic wave mass flowmenter as claimed in claim 1, it is characterised in that be additionally provided with for detecting on described pipeline
The temperature sensor of the fluid temperature (F.T.) in pipeline is flowed through, the temperature sensor is electrically connected to detection main frame.
5. ultrasonic wave mass flowmenter as claimed in claim 1, it is characterised in that the two ends of described pipeline are additionally provided with extension
Terminal pad, the terminal pad is provided with connecting hole.
6. ultrasonic wave mass flowmenter as claimed in claim 1, it is characterised in that be additionally provided with described measurement host for
Show the display screen of detection data.
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CN201621412110.XU CN206291930U (en) | 2016-12-20 | 2016-12-20 | A kind of ultrasonic wave mass flowmenter |
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CN201621412110.XU CN206291930U (en) | 2016-12-20 | 2016-12-20 | A kind of ultrasonic wave mass flowmenter |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106768104A (en) * | 2016-12-20 | 2017-05-31 | 深圳市建恒测控股份有限公司 | A kind of ultrasonic wave mass flowmenter |
CN110242279A (en) * | 2019-07-05 | 2019-09-17 | 荆州市明德科技有限公司 | Single-well crude oil three-phase flow metering device and its method |
CN111398626A (en) * | 2019-12-31 | 2020-07-10 | 江苏启泰物联网科技有限公司 | Liquid flow rate monitoring method for railway |
-
2016
- 2016-12-20 CN CN201621412110.XU patent/CN206291930U/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106768104A (en) * | 2016-12-20 | 2017-05-31 | 深圳市建恒测控股份有限公司 | A kind of ultrasonic wave mass flowmenter |
CN110242279A (en) * | 2019-07-05 | 2019-09-17 | 荆州市明德科技有限公司 | Single-well crude oil three-phase flow metering device and its method |
CN111398626A (en) * | 2019-12-31 | 2020-07-10 | 江苏启泰物联网科技有限公司 | Liquid flow rate monitoring method for railway |
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