CN107121168A - A kind of probe of ultrasonic flowmeter and the ultrasonic flowmeter comprising the probe - Google Patents
A kind of probe of ultrasonic flowmeter and the ultrasonic flowmeter comprising the probe Download PDFInfo
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- CN107121168A CN107121168A CN201710414529.1A CN201710414529A CN107121168A CN 107121168 A CN107121168 A CN 107121168A CN 201710414529 A CN201710414529 A CN 201710414529A CN 107121168 A CN107121168 A CN 107121168A
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- ultrasonic
- probe
- flowmeter
- spill spin
- spin block
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- 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
Abstract
The present invention relates to a kind of probe of ultrasonic flowmeter, including rotatable spill spin block, piezoelectric chip is installed on spill spin block, piezoelectric chip is used to launch or receive ultrasonic wave.By rotating spill spin block is rested in different tube diameters on different positions, to adjust piezoelectric chip sound wave incident angle.The present invention also provides a kind of ultrasonic flowmeter, include the probe of two ultrasonic flowmeters of the invention, when for different tube diameters flow measurement, by rotating spill spin block, to adjust the angle of piezoelectric chip, realizing the signal of upstream probe transmitting can be received by downstream probe, the signal of downstream probe transmitting can also be received by upstream probe, the flow of liquid in different tube diameters is measured in the case of so as to realize constant spacing, make the ultrasonic probe fixed with a pair can be general in the range of different tube diameters, considerably increase the convenience and popularity of ultrasonic probe application.
Description
Technical field
The present invention relates to ultrasonic measurement field, and in particular to a kind of probe of ultrasonic flowmeter and includes the probe
Ultrasonic flowmeter.
Background technology
Ultrasonic measurement has extremely important effect in current liquid measure field, is that other measurement means can not compare
Intend.It uses advanced multi-pulse techniques, signal digital processing technology and error correcting technique, flow measurement is suitable for work
The environment at industry scene, metering is more convenient, economical, accurate.It can be widely applied to the neck such as oil, chemical industry, metallurgy, electric power, plumbing
Domain.
The ultrasonic flowmeter of prior art includes external clamping and plug-in type.Fig. 2 is the external clamping V-type clamping of prior art
Ultrasonic flowmeter mounting means schematic diagram, Fig. 3 is that the external clamping Z-type clamping ultrasonic flowmeter mounting means of prior art shows
It is intended to, in addition also external clamping N-type clamping, external clamping W type clampings etc..Plug-in type is typically to insert a probe into inside pipeline, this
Influence of the pipeline to measurement can be avoided by planting plug-in type.
Fig. 1 is the operation principle schematic diagram of the external-clamping type ultrasonic flowmeter of prior art.Ultrasonic flowmeter includes two
It is provided with individual ultrasonic probe, upstream ultrasonic probe 11 and downstream ultrasonic probe 22, each ultrasonic probe for sending out
Penetrate the piezoelectric chip with received ultrasonic signal.Ultrasonic flowmeter uses the measuring principle of time difference system, and it is sent out using probe
Propagation of the ultrasonic wave gone out in the fluid flowed, downbeam acoustic wave propagation velocity can increase, and countercurrent direction then reduces,
Same propagation distance just has different transmission times, and stream is measured according to the relation between the difference of transmission time and detected fluid flow velocity
The flow velocity of body.The flow velocity specific formula for calculation of fluid can be as follows：
V：Fluid velocity；
M：Ultrasonic reflections number of times；
D：Caliber；
θ：Angle between ultrasonic signal and fluid；
Tup：Downstream ultrasonic, which is popped one's head in, transmits signals to the time of upstream；
Tdown：Upstream ultrasonic, which is popped one's head in, transmits signals to the time in downstream；
Δ T=Tup-Tdown.
Diverse location of the flow velocity of fluid in pipe is different, the flow velocity of the flow velocity than close tube wall in its pipe center
It hurry up.The velocity flow profile of fluid 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, so as to calculate mean flow rate, the volume flow of fluid is drawn further according to the sectional area of pipeline.
The calculation formula of volume flow is：
Volume flow (Q)=mean flow rate (v) × pipeline section product (A)
Mass flow and weight flow can also equally be calculated：
Mass flow (M)=Media density (ρ) × volume flow (Q)
=Media density (ρ) × mean flow rate (v) × pipeline section product (A)；
Weight flow (G)=medium severe (γ) × volume flow (Q)
=Media density (ρ) × acceleration of gravity (g) × volume flow (Q)
=acceleration of gravity (g) × mass flow (M)
It should be noted that above-mentioned operation principle and formula are just for the sake of description background technology, the present invention is not limited to
The calculation formula of above-mentioned rate of flow of fluid, flow.
The angle of piezoelectric chip in the ultrasonic probe of prior art is fixed nonadjustable, also has led to ultrasonic wave
The incidence angle of the ultrasonic signal of two probes is changeless in flowmeter, and then causes to need adjustment to pop one's head in measurement process
Spacing just can be suitably used for the measurement of different tube diameters flow, as shown in Fig. 4 or Fig. 5.And if the angle of probe is constant, between probe
Spacing again it is constant if, ultrasonic flowmeter can test tube footpath will be it is unique, so by considerably increase measurement difficulty and
Limitation.
Current measuring ultrasonic wave flow is divided into general-purpose type and fixed two kinds, and the ultrasonic measurement of general-purpose type is usually required
All kinds of parameters of caliber are inputted, adjustment probe spacing, process is relatively cumbersome, easily error；Fixed measurement is special for certain
Fixed-caliber size, material are special, and application is small, restricted big.Two ways all limits ultrasonic wave to a certain extent
The application of measurement.
The content of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, there is provided a kind of ultrasonic flow
The probe of meter and the ultrasonic flowmeter comprising the probe, overcome lacking for uniqueness that prior art is fixedly mounted and limitation
Fall into.
The technical solution adopted for the present invention to solve the technical problems is：A kind of probe of ultrasonic flowmeter is provided, wrapped
Include rotatable spill spin block；
Piezoelectric chip is installed, the piezoelectric chip is used to launch or receive ultrasonic wave on the spill spin block.
The probe of the ultrasonic flowmeter also includes rotating mark device, for indicating the position that the spill spin block is rotated.
The rotating mark device is angle marker disc, angular display unit or signal lamp.
The probe of the ultrasonic flowmeter also includes transmission mechanism, and the transmission mechanism connects the spill spin block, and can
To drive the spill spin block to rotate.
The transmission mechanism is motor.
The probe of the ultrasonic flowmeter also includes fixed block, and the spill spin block is embedded in the fixed block.
The spill spin block and the fixed block are made of lucite, PEI or polyvinyl chloride.
The present invention also provides a kind of ultrasonic flowmeter, including the first ultrasonic probe and the second ultrasonic probe, described
First ultrasonic probe and the probe that the second ultrasonic probe is the ultrasonic flowmeter as described in any one of claim 1 to 7：
First ultrasonic probe, for launching ultrasonic signal, and receives the second ultrasonic probe transmitting
Ultrasonic signal；
Second ultrasonic probe, for launching ultrasonic signal, and receives the first ultrasonic probe transmitting
Ultrasonic signal；
By rotating the spill spin block of first ultrasonic probe, to change piezoelectric chip in first ultrasonic probe
Angle, and by rotating the spill spin block of second ultrasonic probe, to change piezo crystals in second ultrasonic probe
The angle of piece, makes first ultrasonic probe to receive the ultrasonic signal of the second ultrasonic probe transmitting, described
Second ultrasonic probe can receive the ultrasonic signal of the first ultrasonic probe transmitting.
The ultrasonic flowmeter also includes linkage, for connecting first ultrasonic probe and described the second surpassing
Sonic probe,
When the spill spin block of first ultrasonic probe is rotated, second ultrasonic wave is driven by the linkage
The spill spin block of probe is rotated.
The linkage is gear mechanism, crank mechanism, worm-and-wheel gear or belt wheel.
The spill spin block of first ultrasonic probe of the ultrasonic flowmeter and the spill spin block of the second ultrasonic probe are to phase
Anti- direction rotates identical angle.
The ultrasonic flowmeter also includes processor, the processor and first ultrasonic probe and the second ultrasound
Ripple probe is connected.
The processor controls the first ultrasonic probe of the ultrasonic flowmeter and the transmitting of the second ultrasonic probe super
Acoustic signals, and control first ultrasonic probe and the second ultrasonic probe receive respectively second ultrasonic probe and
The ultrasonic signal of first ultrasonic probe transmitting；
The processor controls the spill spin block of first ultrasonic probe to rotate, and controls second ultrasonic probe
Spill spin block rotate；
The processor is also according to first ultrasonic probe and the second ultrasonic probe received ultrasonic signal
Time difference calculate flow value.
The processor controls the linkage, when the processor controls the spill spin block of first ultrasonic probe
During rotation, the spill spin block for driving second ultrasonic probe by the linkage is rotated.
The ultrasonic flowmeter also includes memory, and the memory is used to store different pipe diameters and the piezoelectricity
The relation table of wafer angle.
Piezoelectric chip angle of the ultrasonic flowmeter according to needed for the relation table determines the pipe diameter；
The spill spin block of the spill spin block of first ultrasonic probe and second ultrasonic probe rotates the angle.
The ultrasonic flowmeter also includes Calibration module, and the Calibration module is connected with the processor,
Caliber for measuring the pipeline.
The ultrasonic flowmeter also includes communication module, and the communication module is connected with the processor, for transmitting
The flow value that the ultrasonic flow rate measurement is obtained.
The ultrasonic flowmeter also includes display, for showing the flow value.
The present invention also provides a kind of pipeline flow measuring system, including the ultrasound as described in any one of claim 8 to 21
Low and monitoring device, the flow value that the ultrasonic flow rate measurement is obtained are transmitted to monitoring device by communication module.
The pipeline flow measuring system, in addition to the printing device being connected with the processor.
The beneficial effects of the present invention are there is provided a kind of spy for the ultrasonic flowmeter for including rotatable spill spin block
Piezoelectric chip is installed on head, spill spin block, when pipe diameter is different, spill spin block is rotated so that spill spin block rests on different
Position, to change the angle of piezoelectric chip, so as to change the ultrasonic wave incidence angle of piezoelectric chip, is realized fixedly mounted general
Property, it is to avoid uniqueness and limitation that conventional fixed-type is installed.
Present invention also offers the ultrasonic flowmeter of the probe using the ultrasonic flowmeter, ultrasonic flowmeter bag
Two ultrasonic probes are included, when for different tube diameters flow measurement, by rotating spill spin block, to adjust piezoelectric chip
Angle, so as to change the ultrasonic wave incidence angle of piezoelectric chip, realizing the signal of upstream probe transmitting can be received by downstream probe,
Downstream probe transmitting signal also can by upstream probe receive, so as to realize constant spacing in the case of can measure not
With the flow of caliber, make the ultrasonic probe fixed with a pair can be general in the range of different tube diameters, considerably increase ultrasonic wave
The convenience and popularity of probe application.Meanwhile, the flexibility of field application ultrasonic flowmeter is increased, can be according to live real
Border applicable cases, the angle of the spill spin block of the probe of regulation two, can also adjust the spacing of two probes, two spies can also be adjusted simultaneously
The angle of the spill spin block of the spacing of head and two probes, to be preferably applicable application environment.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the operation principle schematic diagram of the ultrasonic flowmeter of prior art；
Fig. 2 is the external clamping V-type clamping ultrasonic flowmeter mounting means schematic diagram of prior art；
Fig. 3 is the external clamping Z-type clamping ultrasonic flowmeter mounting means schematic diagram of prior art；
Fig. 4 is the operation principle schematic diagram of the external clamping V-type clamping ultrasonic flowmeter of prior art；
Fig. 5 is the operation principle schematic diagram of the external clamping Z-type clamping ultrasonic flowmeter of prior art；
Fig. 6 is the schematic diagram of the probe 100 of the ultrasonic flowmeter of one embodiment of the invention；
Fig. 7 is the schematic diagram of the probe 200 of the ultrasonic flowmeter of further embodiment of this invention；
Fig. 8 is the schematic diagram of the probe 300 of the ultrasonic flowmeter of further embodiment of this invention；
Fig. 9 is the schematic diagram of the fixed block of the probe of the ultrasonic flowmeter of one embodiment of the invention；
Figure 10 is the schematic diagram of the spill spin block of the probe of the ultrasonic flowmeter of one embodiment of the invention；
Figure 11 is the operation principle schematic diagram of the external clamping V-type clamping ultrasonic flowmeter 400 of one embodiment of the invention；
Figure 12 is the operation principle schematic diagram of the external clamping Z-type clamping ultrasonic flowmeter 500 of one embodiment of the invention；
Figure 13 is the structured flowchart of the ultrasonic flowmeter 600 of one embodiment of the invention；
Figure 14 is the workflow schematic diagram 700 of the ultrasonic flowmeter shown in Figure 13.
Embodiment
In conjunction with accompanying drawing, presently preferred embodiments of the present invention is elaborated.
Fig. 2 is the external clamping V-type clamping ultrasonic flowmeter mounting means schematic diagram of prior art；Fig. 3 is prior art
External clamping Z-type clamping ultrasonic flowmeter mounting means schematic diagram.Generally, copper pipe is measured, Fig. 2 mounting means need to be used,
When measuring other materials pipeline, Fig. 2 or 3 mounting means can be used.Wherein, θ1- probe incidence angle；θ2- probe arrives tube wall
Refraction angle；θ3- tube wall is to the refraction angle of caliber；s1Sound wave is along pipe Propagation distance in-tube wall；s2Sound wave in-caliber
Along pipe Propagation distance；l1- wall thickness；l2- bore；Obtained by the law of refraction：
s1=l1·tanθ2
s2=l2·tanθ3
It can be obtained from above：
Z-type pop one's head in clipping room away from：S=2s1+s2
V-type pop one's head in clipping room away from：S=2 (s1+s2)。
In the prior art, the setting angle of the piezoelectric chip in two ultrasonic probes of ultrasonic flowmeter is fixed
, when piezoelectric chip angle is fixed, in measurement different tube diameters during the flow of liquid, it need to just change probe of ultrasonic flowmeter
Spacing, as shown in Fig. 4 or Fig. 5, using prior art ultrasonic flow rate measurement buret road in fluid flow when, it is necessary to according to
Different tube diameters (D1, D2 or D3) change the spacing of two ultrasonic probes in ultrasonic flowmeter, and otherwise, ultrasonic probe can not
The ultrasonic signal of another ultrasonic probe transmitting is received, flow value also can not be just measured.Accompanying drawing does not show plug-in type ultrasound
Low, but principle is similar to Fig. 4, Fig. 5 external-clamping type ultrasonic flowmeter.
In the prior art, in fluid flow in measuring different tube diameters, it is necessary to input all kinds of parameters of caliber, regulation is ultrasonic
Low probe spacing, process is relatively cumbersome, easily error.
It should be noted that above-mentioned formula is just for the sake of spacing and the relation of caliber between description probe, the present invention is simultaneously
It is not limited to above-mentioned calculation formula.
Present invention firstly provides a kind of probe of the ultrasonic flowmeter of adjustable wafer angle, ultrasonic wave of the invention
The probe of flowmeter can be used for external clamping or plug-type ultrasonic flowmeter.As shown in fig. 6, being the super of one embodiment of the invention
The schematic diagram of the probe 100 of acoustic wave flow meter, including spill spin block 101 and piezoelectric chip 103；Fig. 7 is further embodiment of this invention
Ultrasonic flowmeter probe 200 schematic diagram, including spill spin block 201 and piezoelectric chip 203.By taking Fig. 6 as an example, the present embodiment
The probe 100 of ultrasonic flowmeter include rotatable spill spin block 101, be provided with piezoelectric chip 103 on spill spin block 101, can
By rotating spill spin block 101, to change the angle of piezoelectric chip 103, so that change the ultrasonic signal of piezoelectric chip transmitting
Incidence angle；The uniqueness and limitation for avoiding conventional fixed-type from installing, versatility are good, and application is wide.In a specific embodiment,
Frequency is can select to be arranged on spill spin block for 2M piezoelectric ceramics chip, but the present invention is not limited thereto.
In one embodiment, the probe of ultrasonic flowmeter can also include rotating mark device, can pass through rotating mark
The position that device sign spill spin block is rotated.
In a specific embodiment, rotating mark device can be used as using angle marker disc or angular display unit.When using
During angle marker disc, spill spin block can be rotated manually, and the rotational angle of spill spin block can be identified according to the scale of angle marker disc,
The present invention is not intended to limit other kinds of rotating mark device.
In other embodiments, it can also otherwise show whether probe can receive ultrasonic signal, than
Such as shown with the light and shade of signal lamp ultrasound signal receipt whether or shown with the brightness power of signal lamp ultrasonic wave believe
Number power etc. received, the present invention is not limited.
In another embodiment, the probe of ultrasonic flowmeter can also include transmission mechanism, the transmission mechanism with
Spill spin block is connected, and spill spin block can be driven to rotate.In a specific embodiment, can be using motor as transmission mechanism.
In one embodiment, the probe of ultrasonic flowmeter can also include fixed block, and can be embedded in spill spin block solid
Determine in block.Fig. 8 is the schematic diagram of the probe 300 of the ultrasonic flowmeter of further embodiment of this invention.The ultrasonic wave of the present embodiment
The probe 300 of flowmeter includes being provided with piezoelectric chip 307, piezoelectric chip on spill spin block 303 and fixed block 301, spill spin block 303
307 are used to launch or receive ultrasonic wave, the insertion fixed block 301 of spill spin block 303, and motor 305, motor are provided with fixed block 301
305 can drive spill spin block 303 to rotate, to change the angle of the piezoelectric chip 307 on spill spin block 303, so as to can just change super
The incidence angle of acoustic signals.In a specific embodiment, couplant can be filled up between fixed block 301 and spill spin block 303, for example,
Silica gel can be filled up.By the position of the adjust automatically spill spin block 303 of motor 305, so that the angle of piezoelectric chip 307 is adjusted, to change
Become the ultrasonic wave incidence angle of piezoelectric chip 307, realize fixedly mounted versatility, it is to avoid the uniqueness that conventional fixed-type is installed
And limitation, application is wide.
In one embodiment, lucite, PEI or polyvinyl chloride be can select and spill spin block and fixed block is made.
Only it is the citing to available preferred material, it is not limited to above-mentioned material for the selection of above-mentioned material.
Fig. 9 is provided with the fixed block schematic diagram of the probe of the ultrasonic flowmeter of one embodiment of the invention, fixed block
Groove, with embedded rotating block, fixed block can also transmission mechanism, the spill spin block rotation being embedded with control.
Figure 10 is provided with the spill spin block schematic diagram of the probe of the ultrasonic flowmeter of one embodiment of the invention, spill spin block
Piezoelectric chip, for transmitting or received ultrasonic signal.
Figure 11 is the operation principle schematic diagram of the external clamping V-type clamping ultrasonic flowmeter 400 of one embodiment of the invention.This
The ultrasonic flowmeter 400 of embodiment includes two ultrasonic probes of the invention, i.e. the first ultrasonic probe 401 and the second surpass
Sonic probe 403, the first ultrasonic probe 401 and the second ultrasonic probe 403 are the probe of the ultrasonic flowmeter of the present invention.
Figure 12 is the operation principle schematic diagram of the external clamping Z-type clamping ultrasonic flowmeter 500 of one embodiment of the invention, this
The ultrasonic flowmeter 500 of embodiment includes two ultrasonic probes of the invention, i.e. the first ultrasonic probe 501 and the second surpass
Sonic probe 503, the first ultrasonic probe 501 and the second ultrasonic probe 503 are the probe of the ultrasonic flowmeter of the present invention.
By taking Figure 11 external clamping V-type clamping ultrasonic flowmeter 400 as an example, the first ultrasonic probe 401 is arranged at pipeline
Upstream, the second ultrasonic probe 403 is arranged at the downstream of pipeline, the first ultrasonic probe 401 transmitting ultrasonic signal, second
Ultrasonic probe 403 receives the ultrasonic signal of the first ultrasonic probe 401 transmitting, when the second ultrasonic probe 403 has been received
After the ultrasonic signal of first ultrasonic probe 401 transmitting, the second ultrasonic probe 403 transmitting ultrasonic signal, the first ultrasound
Ripple probe 401 receives the ultrasonic signal of the second ultrasonic probe 403 transmitting, the flow relocity calculation formula that just can be provided according to Fig. 1
The flow velocity of liquid in pipeline is calculated, and further calculates the flow value of liquid in pipeline.
In a specific embodiment, it can also otherwise show whether two probes can mutually receive other side's ultrasound
Ripple signal, such as shown with the light and shade of signal lamp ultrasound signal receipt whether or shown with the brightness power of signal lamp
Show power of ultrasound signal receipt etc., the present invention is not limited.
When pipe diameter changes, the spacing of the first ultrasonic probe 401 and the second ultrasonic probe 403 can not be changed,
But by rotating the spill spin block of the first ultrasonic probe 401, with the angle for the piezoelectric chip for adjusting the first ultrasonic probe 401
Degree, and by rotating the spill spin block of the second ultrasonic probe 403, with the angle for the piezoelectric chip for adjusting the second ultrasonic probe 403
Degree so that when pipe diameter changes, the second ultrasonic probe 403 can still receive the first ultrasonic probe 401 and send out
The ultrasonic signal penetrated, the first ultrasonic probe 401 can also receive the ultrasonic wave letter of the second ultrasonic probe 403 transmitting
Number, in the case where not changing two ultrasonic probe spacing, the flow relocity calculation formula that can be equally provided according to Fig. 1 calculates pipeline
The flow velocity of interior liquid, and further calculate the flow value of liquid in pipeline.In a specific embodiment, also can be according to supersonic flow
The actual application environment of gauge, in order to reach more accurate test effect, both can adjust the first ultrasonic probe 401 and the second had surpassed
The spacing of sonic probe 403, also can adjust the angle of spill spin block in two probes, preferably to adapt to scene.
In one embodiment, ultrasonic flowmeter can also include linkage, linkage connection ultrasonic flow
The first ultrasonic probe and the second ultrasonic probe of meter, when the spill spin block of the first ultrasonic probe is rotated, are filled by linking
Put and drive the spill spin block of the second ultrasonic probe to rotate.
In a specific embodiment, connection can be used as using gear mechanism, crank mechanism, worm-and-wheel gear or belt wheel etc.
Dynamic device, is merely illustrative, the invention is not limited in this here.
In one embodiment, can be by the rotation of the spill spin block of the first ultrasonic probe 401 and the second ultrasonic probe 403
Block rotates identical angle in the opposite direction, the second ultrasonic probe 403 is received the transmitting of the first ultrasonic probe 401
Ultrasonic signal, the first ultrasonic probe 401 receives the ultrasonic signal of the second ultrasonic probe 403 transmitting.
In one embodiment, ultrasonic flowmeter can also include processor, processor and the first ultrasonic probe and
Second ultrasonic probe is connected, and processor can control the first ultrasonic probe and the second ultrasonic probe transmitting ultrasonic signal,
And control the first ultrasonic probe and the second ultrasonic probe to receive the second ultrasonic probe and the first ultrasonic probe hair respectively
The ultrasonic signal penetrated；Processor also can control the first ultrasonic probe and the spill spin block of the second ultrasonic probe is rotated, to change
Become the angle of piezoelectric chip in two spill spin blocks；Processor can also be received according to the first ultrasonic probe and the second ultrasonic probe
The time difference of ultrasonic signal calculates the flow value of liquid in pipeline automatically.In a specific embodiment, can select CPU, ARM or
The devices such as FPGA are used as processor.
In a specific embodiment, it is identical in factors such as pipe material, pipeline wall thickness, fluid properties, and ultrasonic flow
Two ultrasonic probes of meter can first be directed to the pipeline of different tube diameters, to make ultrasonic flowmeter can in the case of identical
With normal work, angle of the piezoelectric chip relative to inclined is tested, and it is corresponding with different tube diameters to preserve different tube diameters
Piezoelectric chip angle.Heretofore described caliber refers to the external diameter of pipeline.
In one embodiment, processor can also control linkage, when processor controls the of ultrasonic flowmeter
When the spill spin block of one ultrasonic probe is rotated, the rotation of the second ultrasonic probe of ultrasonic flowmeter can be driven by linkage
Switch block is rotated.
In one embodiment, ultrasonic flowmeter can also include memory, for storing different tube diameters and piezo crystals
The relation table of piece angle.First in use, two ultrasonic probes of ultrasonic flowmeter, the i.e. He of the first ultrasonic probe 401
The piezoelectric chip on spill spin block in second ultrasonic probe 403 is set to horizontal level.Ultrasonic flowmeter is according to caliber
Size, finds the angle of the corresponding piezoelectric chip of caliber in the relation table, rotates the spill spin block of the first ultrasonic probe 401
The angle, and the spill spin block of the second ultrasonic probe 403 of rotation rotates the angle round about, to cause the second ultrasound
Ripple probe 403 can receive the ultrasonic signal of the first ultrasonic probe 401 transmitting, and the first ultrasonic probe 401 can also
Receive the ultrasonic signal of the second ultrasonic probe 403 transmitting, it is ensured that ultrasonic flowmeter can be with normal work.Due to by
The influence of pipeline internal medium flow velocity, the first ultrasonic probe 401 receives time and the second ultrasonic probe of ultrasonic signal
The time difference is there is between 403 times for receiving ultrasonic signal, can be calculated according to the relation between flow velocity and time difference
The flow velocity of pipeline internal medium, and then flow value can be obtained.
When pipe diameter changes, the spacing of two probes in ultrasonic flowmeter, ultrasonic flowmeter can not be changed
The spill spin block in the first ultrasonic probe 401 and the second ultrasonic probe 403 can be resetted first, to cause the piezoelectricity in two probes
Chip recovers horizontal level, and again according to the angle of the corresponding piezoelectric chip of caliber in relation table, the first ultrasonic wave of rotation is visited
Angle described in first 401 spill spin block, and the spill spin block of the second ultrasonic probe 403 of rotation rotates the angle round about,
To allow the second ultrasonic probe 403 to receive the ultrasonic signal of the first ultrasonic probe 401 transmitting, the first ultrasonic wave
Probe 401 can receive the ultrasonic signal of the second ultrasonic probe 403 transmitting, it is ensured that ultrasonic flowmeter can normal work
Make.It can be achieved in the case of not changing ultrasonic probe spacing, the flow measurement to different tube diameters.Different calibers is corresponding
Angle is specific, can make it is same to fixed probe can in the range of different tube diameters it is general, considerably increase ultrasonic wave spy
The convenience and popularity of head application.
In other embodiments, after the piezoelectric chip in ultrasonic flowmeter has been rotated through certain angle,
Reset operation can not be done to the spill spin block in the first ultrasonic probe 401 and the second ultrasonic probe 403, but calculates current
The corresponding angle of caliber and the current angular of piezoelectric chip in ultrasonic flowmeter do difference, that is, calculate needs and further rotate
Angle, so as to be rotated by spill spin block in motor control ultrasonic flowmeter.
In one embodiment, ultrasonic sensor can also include Calibration module, the caliber for measuring pipeline,
The caliber that ultrasonic sensor is measured according to distance measurement sensor is searched in caliber and the relation table of piezoelectric chip angle works as
The piezoelectric chip angle that preceding caliber needs, and spill spin block is further rotated, to change the angle of piezoelectric chip in two probes.In tool
In body embodiment, Calibration module can measure the size of caliber using range sensor, for example can be using ultrasound
Ripple range sensor, laser range sensor, infrared distance measuring sensor or variable resistor distance measuring sensor etc..
It is understood that when other conditions are constant, but the wall thickness of pipeline or material change or are in pipeline
When medium changes, different wall or unlike material or different pipeline internal mediums and piezoelectric chip angle can be equally set up
Relation table, in the case where not changing ultrasonic probe spacing, realizes the measurement of flow.
In one embodiment, ultrasonic flowmeter can also include communication module, and communication module is connected with processor, uses
In transmitting the flow value that the ultrasonic flow rate measurement is obtained, it can be used for transmitting other information value, for example, temperature, time etc..
In a specific embodiment, wire communication module can be used, it would however also be possible to employ wireless communication module, wire communication module can be used
RS485 interfaces, wireless communication module can be using wifi transmission.
In one embodiment, ultrasonic flowmeter can also include display, for liquid flow value in display pipes,
It can be used for showing other information value, for example, temperature, time etc..
In some above-mentioned embodiments, further comprising processor, memory, communication module etc. in ultrasonic flowmeter,
Be in order to realize automatically control, self-adaptive processing, allow user to have more preferable Consumer's Experience and set.
In a specific embodiment, copper pipe is can select as pipeline, now, the ultrasonic signal launched by ultrasonic probe
Majority by copper pipe tube wall refraction, so, i.e. the first ultrasonic probe and can the second be surpassed using the external clamping V-type clamping shown in Fig. 2
Sonic probe need to be in the same side of copper pipe pipeline.When the pipeline from other materials, for example, pvc pipe, can be using shown in Fig. 3
External clamping Z-type clamping or Fig. 2 shown in external clamping V-type clamping, i.e. the first ultrasonic probe and the second ultrasonic probe both may be used
Installed in the same side of pipeline, the not homonymy of pipeline can be also arranged on.
Figure 13 is the structured flowchart of the ultrasonic flowmeter 600 of one embodiment of the invention, including the first probe 601, second
Probe 603, processor 607, Calibration module 605 and communication module 609.Wherein, the first probe 601 and the second probe 603
The as probe of ultrasonic flowmeter of the invention.
Processor 607 is connected with Calibration module 605, and the control caliber of processor 607 measurement module 605 measures caliber
Size, and according to the size of the caliber measured, in default caliber with searching corresponding piezoelectric chip in angle mapping table
Angle so that control two probe in spill spin block the anglec of rotation.In a specific embodiment, caliber and angle corresponding relation
Table is storable in the storage device beyond processor, can also be stored in the memory cell inside processor.
Processor 607 is also connected with first the 61, second probe 603 of probe respectively, the probe of the probe of control first 601 and second
603 transmitting ultrasonic signals, and control the first probe 601 and the second probe 603 to receive the second probe 603 and the first probe respectively
The ultrasonic signal of 601 transmittings；In addition, processor can also control the spill spin block of 6 first probes 601 and the second probe 603 to turn
It is dynamic, to change the angle of piezoelectric chip on spill spin block, so as to change the incident angle of ultrasonic signal so that measurement different tube diameters
When, the first probe 601 can receive the ultrasonic signal of the second probe 603 transmitting, and the second probe 603 can receive first
The ultrasonic signals of the transmitting of probe 601, processor and according to the first probe 601 and second 603 received ultrasonic signals of probe
Time difference calculates the flow value of liquid in pipeline.
Processor 607 is also connected 609 with communication module, is measuring in pipeline after the flow value of liquid, is passing through the mould that communicates
Block 609 exports the information such as flow value to display screen or ultrasonic flowmeter, such as exporting to PC.
Figure 14 is the workflow schematic diagram 700 of the ultrasonic flowmeter shown in Figure 13.Step 701, ultrasonic flowmeter
600 pre-save caliber and piezoelectric chip angle mapping table；Step 703, the range measurement mould in ultrasonic flowmeter 600
Block 605 measures the value of caliber；Step 705, processor 607 according to the caliber value measured caliber it is corresponding with piezoelectric chip angle close
It is the angle that corresponding piezoelectric chip is searched in table, and controls spill spin block on the first probe 601 and the second probe 603 to opposite
Direction rotates the angle；Step 707, the control of processor 607 first probe 601 and the second probe 603 launch ultrasonic wave simultaneously
Signal, and control first probe 601 and second probe 603 respectively receive second probe 603 and first probe 601 transmitting ultrasounds
Ripple signal；Step 709, the time difference that processor receives ultrasonic signal according to the first probe 701 and the second probe 703 calculates
The flow value of liquid in pipeline；Step 711, processor 707 is exported the information such as flow value by communication module 709.
Present invention also offers a kind of pipeline flow measuring system, completed using the ultrasonic flowmeter of the present invention in pipeline
The measurement of fluid flow, and monitoring in real time can be accomplished.
In one embodiment, pipeline flow measuring system may include the ultrasonic flowmeter and monitoring device of the present invention,
The information such as the flow that ultrasonic flow rate measurement is obtained can be transmitted by the communication module in ultrasonic flowmeter to monitoring device, side
Just administrative staff detect and the information such as flow of liquid in control pipeline in real time.In specific real-time mode, monitoring device can be with
It is PC, mobile phone or tablet device.
The pipeline flow measuring system realized by using the ultrasonic flowmeter of the present invention, can be between upstream and downstream probe
In the case of constant, for different tube diameters size, the spill spin block in ultrasonic probe is controlled with adjust automatically by processor
The ultrasonic wave incident angle of piezoelectric chip, realizing the signal of upstream probe transmitting can be received by downstream probe, downstream probe hair
The signal penetrated can be received by upstream probe, so as to can measure the stream of different tube diameters size in the case of realizing constant spacing
Amount.Solve limitation of the conventional ultrasonic wave probe in application field, especially installing and using and have matter in the scope of application in probe
Leap.Certainly, also the angle of spill spin block in two probes can both have been adjusted according to field application, while also can adjust two probes
Spacing, considerably increases the application flexibility of ultrasonic flowmeter.
In one embodiment, pipeline flow measuring system can also connect printing device, the printing device and monitoring
Equipment is connected, and can be used for the information such as printing flow, flow velocity.
It should be appreciated that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations, to ability
For field technique personnel, the technical scheme described in above-described embodiment can be modified, or it is special to which part technology
Levy carry out equivalent substitution；And all such modifications and replacement, it should all belong to the protection domain of appended claims of the present invention.
Claims (23)
1. a kind of probe of ultrasonic flowmeter, it is characterised in that including rotatable spill spin block,
Piezoelectric chip is installed, the piezoelectric chip is used to launch or receive ultrasonic wave on the spill spin block.
2. the probe of ultrasonic flowmeter as claimed in claim 1, it is characterised in that the probe of the ultrasonic flowmeter is also
Including rotating mark device, for indicating the position that the spill spin block is rotated.
3. the probe of ultrasonic flowmeter as claimed in claim 2, it is characterised in that the rotating mark device is angle mark
Disk, angular display unit or signal lamp.
4. the probe of ultrasonic flowmeter as claimed in claim 1, it is characterised in that the probe of the ultrasonic flowmeter is also
Including transmission mechanism, the transmission mechanism connects the spill spin block, it is possible to drive the spill spin block to rotate.
5. the probe of ultrasonic flowmeter as claimed in claim 4, it is characterised in that the transmission mechanism is motor.
6. the probe of the ultrasonic flowmeter as described in any one of claim 1 to 5, it is characterised in that the ultrasonic flow
The probe of meter also includes fixed block, and the spill spin block is embedded in the fixed block.
7. the probe of ultrasonic flowmeter as claimed in claim 6, it is characterised in that the spill spin block and the fixed block are adopted
It is made of lucite, PEI or polyvinyl chloride.
8. a kind of ultrasonic flowmeter, it is characterised in that including the first ultrasonic probe and the second ultrasonic probe, described first
Ultrasonic probe and the probe that the second ultrasonic probe is the ultrasonic flowmeter as described in any one of claim 1 to 7：
First ultrasonic probe, for launching ultrasonic signal, and receives the ultrasound of the second ultrasonic probe transmitting
Ripple signal；
Second ultrasonic probe, for launching ultrasonic signal, and receives the ultrasound of the first ultrasonic probe transmitting
Ripple signal；
By rotating the spill spin block of first ultrasonic probe, to change the angle of piezoelectric chip in first ultrasonic probe
Degree, and by rotating the spill spin block of second ultrasonic probe, to change piezoelectric chip in second ultrasonic probe
Angle, makes first ultrasonic probe to receive the ultrasonic signal of the second ultrasonic probe transmitting, described second
Ultrasonic probe can receive the ultrasonic signal of the first ultrasonic probe transmitting.
9. ultrasonic flowmeter as claimed in claim 8, it is characterised in that the ultrasonic flowmeter also includes linkage dress
Put, for connecting first ultrasonic probe and second ultrasonic probe,
When the spill spin block of first ultrasonic probe is rotated, second ultrasonic probe is driven by the linkage
Spill spin block rotate.
10. ultrasonic flowmeter as claimed in claim 9, it is characterised in that the linkage is gear mechanism, crank machine
Structure, worm-and-wheel gear or belt wheel.
11. the ultrasonic flowmeter as described in any one of claim 8 to 10, it is characterised in that the ultrasonic flowmeter
The spill spin block of the spill spin block of first ultrasonic probe and the second ultrasonic probe rotates identical angle in the opposite direction.
12. the ultrasonic flowmeter as described in any one of claim 8 to 10, it is characterised in that the ultrasonic flowmeter is also
Including processor, the processor is connected with first ultrasonic probe and the second ultrasonic probe.
13. ultrasonic flowmeter as claimed in claim 12, it is characterised in that
The processor controls the first ultrasonic probe and the second ultrasonic probe transmitting ultrasonic wave of the ultrasonic flowmeter
Signal, and control first ultrasonic probe and the second ultrasonic probe to receive second ultrasonic probe and first respectively
The ultrasonic signal of ultrasonic probe transmitting；
The processor controls the spill spin block of first ultrasonic probe to rotate, and controls the rotation of second ultrasonic probe
Switch block is rotated；
The processor also according to first ultrasonic probe and the second ultrasonic probe received ultrasonic signal when
Between difference calculate flow value.
14. ultrasonic flowmeter as claimed in claim 12, it is characterised in that the processor controls the linkage,
When the processor controls the spill spin block of first ultrasonic probe to rotate, described second is driven by the linkage
The spill spin block of ultrasonic probe is rotated.
15. ultrasonic flowmeter as claimed in claim 12, it is characterised in that the ultrasonic flowmeter also includes storage
Device, the memory is used to store different pipe diameters and the relation table of the piezoelectric chip angle.
16. ultrasonic flowmeter as claimed in claim 15, it is characterised in that
Piezoelectric chip angle of the ultrasonic flowmeter according to needed for the relation table determines the pipe diameter；
The spill spin block of the spill spin block of first ultrasonic probe and second ultrasonic probe rotates the angle.
17. ultrasonic flowmeter as claimed in claim 12, it is characterised in that the ultrasonic flowmeter also includes caliber and surveyed
Module is measured, the Calibration module is connected with the processor, the caliber for measuring the pipeline.
18. ultrasonic flowmeter as claimed in claim 17, it is characterised in that the Calibration module is ultrasonic distance
Sensor, laser range sensor, infrared distance measuring sensor or variable resistor distance measuring sensor.
19. ultrasonic flowmeter as claimed in claim 12, it is characterised in that the ultrasonic flowmeter also includes communication mould
Block, the communication module is connected with the processor, for transmitting the flow value that the ultrasonic flow rate measurement is obtained.
20. ultrasonic flowmeter as claimed in claim 19, it is characterised in that the communication module be wire communication module or
Wireless communication module.
21. ultrasonic flowmeter as claimed in claim 12, it is characterised in that the ultrasonic flowmeter also includes display
Device, for showing described flow value.
22. a kind of pipeline flow measuring system, it is characterised in that including the ultrasonic wave as described in any one of claim 8 to 21
Flowmeter and monitoring device, the flow value that the ultrasonic flow rate measurement is obtained are transmitted to monitoring device by communication module.
23. pipeline flow measuring system as claimed in claim 22, it is characterised in that also include：Connect with the monitoring device
The printing device connect.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710414529.1A CN107121168B (en) | 2017-06-05 | 2017-06-05 | A kind of probe of ultrasonic flowmeter and ultrasonic flowmeter comprising the probe |
| AU2018203983A AU2018203983A1 (en) | 2017-06-05 | 2018-06-05 | Compact ultrasonic flowmeter with adjustment for various flow diameters |
| US16/000,761 US10551231B2 (en) | 2017-06-05 | 2018-06-05 | Compact ultrasonic flowmeter with adjustment for various flow diameters |
| IL259828A IL259828A (en) | 2017-06-05 | 2018-06-05 | Compact ultrasonic flowmeter with adjustment for various flow diameters |
| EP18176098.4A EP3413019A3 (en) | 2017-06-05 | 2018-06-05 | Compact ultrasonic flowmeter with adjustment for various flow diameters |
| US16/777,833 US20200284629A1 (en) | 2017-06-05 | 2020-01-30 | Compact ultrasonic flowmeter with adjustment for various flow diameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710414529.1A CN107121168B (en) | 2017-06-05 | 2017-06-05 | A kind of probe of ultrasonic flowmeter and ultrasonic flowmeter comprising the probe |
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| CN107121168A true CN107121168A (en) | 2017-09-01 |
| CN107121168B CN107121168B (en) | 2019-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710414529.1A Active CN107121168B (en) | 2017-06-05 | 2017-06-05 | A kind of probe of ultrasonic flowmeter and ultrasonic flowmeter comprising the probe |
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| EP3413019A3 (en) * | 2017-06-05 | 2019-02-06 | Cong Xiao | Compact ultrasonic flowmeter with adjustment for various flow diameters |
| CN110057414A (en) * | 2019-04-09 | 2019-07-26 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | A kind of small diameter tube closed conduct water flow ultrasonic measurement optimization method and device |
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| CN112386462A (en) * | 2020-11-11 | 2021-02-23 | 上海应用技术大学 | Resonance ultrasonic rhinitis nursing device |
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| CN112729432A (en) * | 2021-02-04 | 2021-04-30 | 大连博克斯流体科技有限公司 | Clamping type double-track water meter |
| CN115493662A (en) * | 2022-11-21 | 2022-12-20 | 成都流体动力创新中心 | Integrated ultrasonic flowmeter and system for aerospace |
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