CN207147568U - Plug-in type ultrasonic flowmeter and Flow Measuring System - Google Patents

Plug-in type ultrasonic flowmeter and Flow Measuring System Download PDF

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Publication number
CN207147568U
CN207147568U CN201720845492.3U CN201720845492U CN207147568U CN 207147568 U CN207147568 U CN 207147568U CN 201720845492 U CN201720845492 U CN 201720845492U CN 207147568 U CN207147568 U CN 207147568U
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China
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branch
plug
pipeline
ultrasonic
ultrasonic transducer
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沈畅
罗勇
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Chengdu Sound Li Deke Technology Co Ltd
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Chengdu Sound Li Deke Technology Co Ltd
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Abstract

The utility model provides a kind of plug-in type ultrasonic flowmeter and Flow Measuring System, is related to flow monitoring field.The plug-in type ultrasonic flowmeter includes main inserted link, one end that the main inserted link is inserted in the pipeline, which has, is spaced symmetrically arranged first branch and the second branch, first branch and second branch are separately positioned on the upstream and downstream of the pipeline, the first ultrasonic transducer is provided with first branch, the second ultrasonic transducer with the position correspondence of first ultrasonic transducer is provided with second branch.Compared with prior art, the signal reception of plug-in type ultrasonic flowmeter provided by the utility model is stronger, and interchannel noise is smaller, therefore power consumption is smaller to be powered with electricity consumption pond, Stability Analysis of Structures and simplify, it is easy to use, pipeline water flow low flow velocity and flow can accurately be measured.

Description

Plug-in type ultrasonic flowmeter and Flow Measuring System
Technical field
Flow monitoring field is the utility model is related to, in particular to a kind of plug-in type ultrasonic flowmeter and flow Measuring system.
Background technology
With weary, and the increasingly raising of energy-saving and emission-reduction standard of increasingly bursting of water resource, the accurate measurement of water and supply water to The system high efficiency management of water, it has also become one of urgent task of current water industry.The average water loss in general city according to statistics In 20-30% or so.This is the loss of huge resource and the energy.Just need to add on waterline to reduce this loss Flowmeter is filled, real time on-line monitoring is carried out to pipe network flow and pressure.But because most of pipe network has been laid and is runed more Year, installing pipeline section type flowmeter or water meter needs to cut off the water, while also needs to cut off existing pipeline section, and engineering cost is higher, therefore manages Segmentation flowmeter or water meter are limited in practical application.
In recent years, DMA zone meterings method in the leak water detdction of city by most attention.But in force, people It was found that with the increase of line size, the cost of required pipeline section type flowmeter or water meter also rises rapidly, and this allows for city confession Draining company has to the installation number of reduction table.This is equal to be the subregion scope for expanding leak water detdction, so as to reduce The efficiency and accuracy of leak water detdction.
Plug-type ultrasonic flowmeter need not cut off existing pipeline, without cutting off the water, can with installation with pressure, its is easy for construction, Quickly.Also, its cost changes less with line size, therefore receives significant attention.
Existing inserting-type flowmeter mainly has mechanical, electromagnetic type and ultrasonic type.Plug-in type mechanical meters, refer to Traditional mechanical current meter such as propeller current meter, turbine current meter etc., it is arranged on the mode of insertion in pipeline.This kind of stream Gauge has the common weakness of mechanical flowmeter:Easy to wear, easy blocking or stuck, initial-flow is high, and precision is low etc..Therefore it is actual Limit in very big, it is difficult to detected for accurate measurement and pipe network water leakage.
Electromagnetic flowmeter no-rotary part is inserted, maintenance cost is low can be with battery powered.But it is easily by electromagnetic environment And the influence of medium conductance, it is not ideal enough additionally, due to the measurement of its low flow velocity, along with cost is high, therefore only make on a small quantity With.
Insertion ultrasonic flowmeter has the advantages of no-rotary part, maintenance cost is low.It is usually using a pair of transducers. Its transducer be arranged on pipeline both sides, face-to-face or be separated by a certain distance in pipeline homonymy.Transducer is generally and inner-walls of duct Flush or near inside pipe wall.Therefore, in measurement, acoustic signals are needed through relatively long distance, such as one times to two times caliber, Acoustic attenuation is larger, and this requires stronger transmission power, and more complicated Testing of Feeble Signals and processing calculate, then, system power dissipation It is generally large, it is difficult to realize battery powered.Urban pipe network is at the node for needing to install flowmeter, usually without power supply.If Flowmeter is not battery powered, can not just be used.
Further, since the noise in reception signal is stronger, insertion ultrasonic flow rate measurement amount low flow velocity is more difficult, Wu Fayong In leak water detdction.
Furthermore, it is necessary to sensor relative distance be adjusted according to actual conditions, so that reception signal in installation process Intensity reaches optimal.Therefore, the zero point of system can not accurately determine, and influence measurement result.
In summary, there is presently no a kind of preferable inserting-type flowmeter, it is reliable and stable and can both can be easily installed Ground works, and not only maintenance cost was low but also moderate, while can also battery powered and detection low flow velocity.Both are to reality after particularly Border application has very important significance.Because waterline major part place can not or be not easy to get civil power, the power supply of flowmeter As it is especially important the problem of.On the other hand, leak is belonging to dark leakage in early days, and its flow velocity is smaller, but because the pipe of defeated pipe network Footpath is all larger, and the water of corresponding leak is not really small, and so, the low flow velocity performance of flowmeter is just very crucial to leak water detdction.
Utility model content
The purpose of this utility model is to provide a kind of plug-in type ultrasonic flowmeter and Flow Measuring System, and it can have Effect improves above mentioned problem.
What embodiment of the present utility model was realized in:
In a first aspect, the utility model embodiment provides a kind of plug-in type ultrasonic flowmeter, it is described applied to pipeline Plug-in type ultrasonic flowmeter includes main inserted link, and one end that the main inserted link is inserted in the pipeline has interval symmetrically arranged First branch and the second branch, first branch and second branch are separately positioned on the upstream of the pipeline And downstream, the first ultrasonic transducer is provided with first branch, is provided with second branch and described Second ultrasonic transducer of the position correspondence of one ultrasonic transducer.
In the utility model preferred embodiment, first branch is also set on the different height in the pipeline Multiple ultrasonic transducers are equipped with, are additionally provided with second branch and multiple ultrasonic waves on first branch Can device quantity is identical and multiple ultrasonic transducers of position correspondence, position on first branch and second branch Corresponding each two ultrasonic transducer forms a ultrasonic wave sound channel, the straight line where each ultrasonic wave sound channel with it is described The centerline axis parallel of pipeline.
In the utility model preferred embodiment, it is provided with first branch and first ultrasonic wave transducer Device is located at the first acoustic mirror of different height, is provided with second branch with first acoustic mirror positioned at same The line of second acoustic mirror of height, first acoustic mirror and second acoustic mirror and the central shaft of the pipeline In line is generally aligned in the same plane, by the ultrasonic signal that first ultrasonic transducer is sent through the anti-of first acoustic mirror The face of penetrating is reflected and incided on the reflecting surface of second acoustic mirror, then by second acoustic mirror reflective surface to Up to second ultrasonic transducer, by the ultrasonic signal that second ultrasonic transducer is sent through second sound reflecting The reflective surface of mirror is simultaneously incided on the reflecting surface of first acoustic mirror, then the reflecting surface by first acoustic mirror Reflex to and reach first ultrasonic transducer.
In the utility model preferred embodiment, at the different height of first branch and second branch Multigroup ultrasonic transducer and acoustic mirror structure are additionally provided with, in ultrasonic transducer described in every group and acoustic mirror structure, By the ultrasonic signal that a ultrasonic transducer is sent another corresponding ultrasonic wave is reached by two acoustic mirrors Transducer.
In the utility model preferred embodiment, the main inserted link is fixedly mounted on the pipeline by link flange On.
In the utility model preferred embodiment, axial index line, the axially instruction are provided with the main inserted link The centerline axis parallel of line and the pipeline.
In the utility model preferred embodiment, scale or neck are provided with the main inserted link, to control the master Insertion depth of the inserted link in the pipeline.
Second aspect, the utility model embodiment provide a kind of Flow Measuring System, and it includes insertion as described above Formula ultrasonic flowmeter, time difference measurement unit, reference clock unit, MCU microprocessors, LCD/Buttons are shown and button list Member, INTF interface units, DL peripheral data storage units, RTC real time clock units and PMU battery management units, when described Difference measurements unit and the MCU microprocessors are connected with the plug-in type ultrasonic flowmeter respectively, the reference clock unit It is connected respectively with the time difference measurement unit with the MCU microprocessors, the LCD/Buttons is shown and push-button unit, institute State INTF interface units, the DL peripheral data storage units, the RTC real time clock units and the PMU battery managements Unit is connected with the MCU microprocessors respectively.
In the utility model preferred embodiment, the Flow Measuring System also includes temperature sensor, pressure sensing Device, temperature measurement unit TMP and pressure measurement cell P, the temperature sensor are arranged at the plug-in type ultrasonic flowmeter Main inserted link on, the temperature measurement unit TMP connects with the time difference measurement unit, and the pressure sensor is arranged at described On the main inserted link of plug-in type ultrasonic flowmeter, the pressure measurement cell P connects with the MCU microprocessors.
In the utility model preferred embodiment, the sensor incoming end of the time difference measurement unit is additionally provided with more sound Road change-over switch.
The plug-in type ultrasonic flowmeter and Flow Measuring System that the utility model embodiment provides, by by main inserted link Measured in one end insertion pipeline, the first branch and the second branch be symmetrical arranged at the upstream and downstream interval of pipeline, And it is correspondingly arranged the first ultrasonic transducer and the second ultrasonic wave transducer on first branch and second branch Device, it may make up a flow velocity measurement ultrasonic wave sound channel;In addition, the position of the first ultrasonic transducer and the second ultrasonic transducer It is corresponding so that the transmission quality of acoustic signals is higher, is easy to the point flow velocity of a certain position in accurate measurement pipe.With prior art phase Than the signal reception of plug-in type ultrasonic flowmeter provided by the utility model is stronger, and interchannel noise is smaller, can use Battery powered, the accurate measurement to pipeline water flow low flow velocity and flow is realized, and structure is more stable, is easily installed.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation for the plug-in type ultrasonic flowmeter that the utility model first embodiment provides;
Fig. 2 is the structural representation for the Flow Measuring System that the utility model first embodiment provides;
Fig. 3 is the structural representation for the plug-in type ultrasonic flowmeter that the utility model second embodiment provides;
Fig. 4 is the structural representation for the plug-in type ultrasonic flowmeter that the utility model 3rd embodiment provides;
Fig. 5 is the plug-in type ultrasonic flowmeter for the addition metering probe component that the utility model 3rd embodiment provides The structural representation at one visual angle;
Fig. 6 is the plug-in type ultrasonic flowmeter for the addition metering probe component that the utility model 3rd embodiment provides The structural representation at two visual angles.
Icon:The main inserted links of 100-;120- measures gauge outfit;140- metering probe components;The branches of 200- first;220- first Ultrasonic transducer;The acoustic mirrors of 240- first;The branches of 300- second;The ultrasonic transducers of 320- second;The 340- rising tones Speculum;400- pipelines;420- link flanges;500- temperature sensors;600- pressure sensors;700- time difference measurement units.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and The component of the utility model embodiment shown can be configured to arrange and design with a variety of.
Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.
It should be noted that:Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
, it is necessary to explanation in description of the present utility model, term " in ", " on ", " under ", "left", "right", " interior ", The orientation or position relationship of instructions such as " outer " are or the utility model product based on orientation shown in the drawings or position relationship The orientation or position relationship usually put during use, it is for only for ease of description the utility model and simplifies description, without referring to Show or imply that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, therefore can not manage Solve as to limitation of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and can not manage Solve to indicate or implying relative importance.
In addition, the term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, and It is to be slightly tilted.Such as " level " only refers to that its direction is more horizontal with respect to for " vertical ", is not to represent the structure Must be fully horizontal, but can be slightly tilted.
In description of the present utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, Or it is integrally connected;Can be mechanical connection or electrical connection;Can be joined directly together, intermediary can also be passed through It is indirectly connected, can is the connection of two element internals.For the ordinary skill in the art, can be managed with concrete condition Solve concrete meaning of the above-mentioned term in the utility model.
In addition, the term such as " input ", " output ", " feedback ", " formation " is understood as describing a kind of optics, electricity change Or optics, electricity processing.As " is formationed " only refer to optical signal or electric signal by the element, instrument or device afterwards there occurs Change optically or electrically so that the optical signal or the electric signal are processed, and then are obtained and implemented technical scheme Or the signal required for solution technical problem.
In specific embodiment of the utility model accompanying drawing, for more preferable, clearer description plug-in type ultrasonic flow The operation principle of each element in meter and Flow Measuring System, the annexation of each several part in described device is showed, simply obvious area The relative position relation divided between each element, it can not form to the optical path direction in element or structure, the order of connection and each The restriction of part-structure size, size, shape.
First embodiment
Fig. 1 is refer to, a kind of plug-in type ultrasonic flowmeter is present embodiments provided, applied to pipeline 400.The insertion Formula ultrasonic flowmeter includes main inserted link 100 and metering gauge outfit 120.The main inserted link 100 is in the one end in the outside of pipeline 400 It is connected with the metering gauge outfit 120, one end that the main inserted link 100 is inserted in the pipeline 400 has interval symmetrically arranged First branch 200 and the second branch 300, first branch 200 and second branch 300 are separately positioned on institute The upstream and downstream of pipeline 400 is stated, is provided with the first ultrasonic transducer 220 on first branch 200, described second point The second ultrasonic transducer 320 with the position correspondence of first ultrasonic transducer 220 is provided with branch 300.This reality Apply in example, the line of first ultrasonic transducer 220 and second ultrasonic transducer 320 and the pipeline 400 Centerline axis parallel.
In the present embodiment, relative distance between the main inserted link 100, the first branch 200 and the second branch 300 and Position is just fixed before dispatching from the factory and forms a rigid connection body, such as is integrally formed, so as to ensure that the first ultrasonic wave Relative position between the ultrasonic transducer 320 of transducer 220 and second will not change because of installation, its integrally-built survey Amount performance and instrument coefficient can also be demarcated before dispatching from the factory, and will not also change because of error when installing.It is understood that Relative distance between the main inserted link 100, the first branch 200 and the second branch 300 be able to can also be adjusted, example Such as by the relative distance for setting stretching structure to change between the first branch 200 and the second branch 300, or change the Relative distance between one branch 200, the second branch 300 and main inserted link 100 is to change two branches in the duct Insertion depth.
In the present embodiment, the main inserted link 100 can be solid by link flange 420 by the mounting means of insertion with pressure Dingan County makes the branch 300 of first branch 200 and second is spaced apart to be arranged on pipeline on the pipeline 400 400 upstream and downstream.It is understood that the direction of fluid motion is from the upstream of pipeline 400 flow direction in the pipeline 400 Downstream, the upstream and downstream of the pipeline 400 can not be the both ends of pipeline 400, you can be arbitrarily along fluid in pipeline 400 Two points of direction of motion distribution or section.
In the present embodiment, the main inserted link 100, each junction of link flange 420 and pipeline 400 use waterproof sealing Measure.
In the present embodiment, the ultrasonic transducer 320 of the first ultrasonic transducer 220 and second is that one kind can utilize High-frequency electrical energy is converted into the element of mechanical energy by piezo-electric effect, and its primary structure is piezoelectric ceramics.By installed in the first branch Transmission line of electricity in the branch 300 of portion 200 and second is defeated to the first ultrasonic transducer 220 or the second ultrasonic transducer 320 Enter certain voltage, you can make the first ultrasonic transducer 220 or the second shaking towards piezoceramic disc face of ultrasonic transducer 320 Dynamic direction sends ultrasonic wave.
In the present embodiment, because the ultrasonic transducer 320 of the first ultrasonic transducer 220 and second is relative sets Put, it is to be understood that connect by the ultrasonic signal that the first ultrasonic transducer 220 is sent by the second ultrasonic transducer 320 Receive;Relative, the ultrasonic signal sent by the second ultrasonic transducer 320 is then received by the first ultrasonic transducer 220.It is super The transmitting of acoustic signals is alternately performed with receiving by this to transducer, and a ultrasound being mutually matched is formed between two transducers Wave sound road, so as to complete to be from upstream to downstream, and swim over to from down the accurate measurement in the propagation time and time difference of upstream.
In the present embodiment, the ultrasonic transducer 320 of the first ultrasonic transducer 220 and second can be arranged on pipeline On 400 central axis, can also be arranged on a certain distance from the central axis from pipeline 400 but with the pipeline of centerline axis parallel On.It is understood that in order to reach optimal ultrasonic measurement effect, it is necessary to ensure first ultrasonic transducer 220 And the centerline axis parallel of the second line between ultrasonic transducer 320 and the pipeline 400, now between two transducers The ultrasonic wave sound channel also centerline axis parallel with pipeline 400, it can be appreciated that now ultrasound signal transmission in ultrasonic wave sound channel Direction and the fluid movement of pipeline 400 direction on the same line, transmitted noise now is minimum, signal quality highest, It is just more accurate to measure the data obtained, to realize that the accurate measurement of current low flow velocity and flow provides guarantee.
Particularly, the first ultrasonic transducer 220 in the present embodiment and the second ultrasonic transducer 320 can also be relative Be arranged in height different in pipeline 400, for example, one on the other, left and right stagger and be obliquely installed, now can be inclined by this Projection of the ultrasonic wave sound channel on the central axis or the pipeline of a certain bar and centerline axis parallel of pipeline 400 is as the super of reality Sound wave sound channel, and the data for measuring acquisition are converted accordingly, to obtain the horizontal stroke of two pipelines 400 where two transducers Flow rate of water flow and flow in section.
In the present embodiment, in order to help main inserted link 100 to be positioned when being installed to pipeline 400 so that the central shaft of pipeline 400 Line is in the plane being made up of the first branch 200 and the second branch 300, and axial direction can be set on the main inserted link 100 Index line, the centerline axis parallel of the axial index line and the pipeline 400.
In the present embodiment, in order to ensure the first ultrasonic transducer on the first branch 200 and the second branch 300 220 and second ultrasonic transducer 320 accurately can set face-to-face, the first branch 200 and the second branch 300 are in pipe Insertion depth in road 400 is identical, now can be by the scale or neck that are pre-set on main inserted link 100, to control Insertion depth of the main inserted link 100 in the pipeline 400.Meanwhile the direction of main inserted link 100 also will strictly be controlled, The central axis of the main inserted link 100 and the pipeline 400 need to be made as far as possible vertical, again may be by here in main inserted link 100 Upper setting neck is realized.
In the present embodiment, the main inserted link 100 can also set temperature sensor 500 on the position inside pipeline 400 With pressure sensor 600, for while the ultrasound signal transmission time difference is obtained obtain measuring environment in water temperature and hydraulic pressure Data, to carry out corresponding error compensation calculating.
Fig. 2 is refer to, the present embodiment additionally provides a kind of Flow Measuring System, and it includes plug-in type ultrasound as described above Low, time difference measurement unit 700, reference clock unit, MCU microprocessors, LCD/Buttons is shown and push-button unit, INTF interface units, DL peripheral data storage units, RTC real time clock units and PMU battery management units.The time difference surveys Amount unit 700 and the MCU microprocessors be connected respectively with the plug-in type ultrasonic flowmeter, the reference clock unit with The MCU microprocessors are connected with the time difference measurement unit 700 respectively, and the LCD/Buttons is shown and push-button unit, institute State INTF interface units, the DL peripheral data storage units, the RTC real time clock units and the PMU battery managements Unit is connected with the MCU microprocessors respectively.In the present embodiment, foregoing circuit module can be arranged on metering gauge outfit 120 In.
In the present embodiment, when being additionally provided with temperature sensor 500 on the main inserted link 100 of the plug-in type ultrasonic flowmeter During with pressure sensor 600, temperature measurement unit TMP and pressure measxurement can also be set accordingly in the Flow Measuring System Unit P.The temperature measurement unit TMP and the time difference measurement unit 700 connect, the pressure measurement cell P and the MCU Microprocessor connects.
Typically, the temperature measurement unit TMP can be realized in the time difference measurement unit 700, pressure measxurement Unit can hang over MCU A/D conversion mouths.
In the present embodiment, the time difference measurement unit 700, it can select based on TOF single propagation time measuring methods Chip, such as ACAM GP21/20/30, MAXIM MAX35101 etc.;The product based on sound endless form, such as D- can also be selected FLOW scheme;The scheme of oneself can also be built according to the wiring block diagram in Fig. 2.The INTF interface units can be wireless Interface, RS485 interfaces, MBUS interfaces, pulse interface etc..
In the present embodiment, the PMU battery management units can be converted into cell voltage various required voltages, except this Outside, it is also responsible for managing various power consumption modes, so that the power consumption of system is minimum, increases the service life of battery.
In the present embodiment, the reference clock unit is that time difference measurement unit 700 provides accurate and stable reference frequency Rate, it ensure that the precision of time difference measurement.The RTC real time clock units are that system provides the foundation clock and calendar, the calendar It is important for data record.
In the present embodiment, (E can be selected in the DL data storage cells2PROM, EEPROM) it is logical It is commonly used to store various flows and status information, including day accumulation, day maximum, minimum discharge, month to date, warning message etc..This A little data can be in E in the case of system cut-off2Decades are kept in PROM.Particularly, the DL data storage cells can Applied for meterage etc..
In the present embodiment, the temperature sensor 500 can be used for obtaining water temperature, to compensate shadow of the water temperature to measurement accuracy Ring.The pressure sensor 600 can be used for the pressure information for obtaining the position in pipeline 400, and the pressure information is to ductwork pressure Balance, prevent booster, reduce water leakage ratio, save water pump power consumption, be respectively provided with significance.
The plug-in type ultrasonic flowmeter that the present embodiment provides, the integrated plug in sensor of uniqueness is employed, its Signal reception is strong, and easy for installation and Stability Analysis of Structures is reliable, and material price and maintenance cost are low.Flow Measuring System then passes through PMU battery management units are that whole system realizes battery powered, further through the large scale integrated circuit system of low power consumption high-precision Into time difference measurement unit 700 realize accurate measurement to the current low flow velocity of pipeline 400 and flow, effectively solve city The problem of power supply and low flow velocity detection in water transfer pipe network engineering, to realize that the water system management of environmental protection and energy saving provides possibility.
Second embodiment
Fig. 3 is refer to, present embodiments provides a kind of plug-in type ultrasonic flowmeter, and the utility model first embodiment Maximum difference is that in the present embodiment, the first branch 200 in plug-in type ultrasonic flowmeter is in the pipeline 400 Different height on be additionally provided with multiple ultrasonic transducers, be additionally provided with second branch 300 and described first point Multiple ultrasonic transducer quantity in branch 200 are identical and multiple ultrasonic transducers of position correspondence.First branch A ultrasonic wave sound channel is formed on the branch 300 of portion 200 and second between each two ultrasonic transducer corresponding to position, each Centerline axis parallel of the straight line with the pipeline 400 where ultrasonic wave sound channel.
In the present embodiment, for the plug-in type ultrasonic flowmeter of corresponding multichannel, the time difference in Flow Measuring System surveys The sensor incoming end of amount unit 700 can also set multichannel change-over switch, and by the change-over switch, multichannel can be passed Each ultrasonic wave sound channel in sensor is individually measured.
Relative to the utility model first embodiment, the present embodiment at the different height of plug in sensor by adding Multipair transducer, to form multiple ultrasonic wave sound channels, and to carry out single ultrasonic propagation time poor for each ultrasonic wave sound channel Measurement, can obtain the multi-group data at different height in pipeline 400, make the result of the last flow velocity for calculating acquisition and flow more It is accurate to add.
3rd embodiment
Fig. 4 is refer to, present embodiments provides a kind of plug-in type ultrasonic flowmeter, and the utility model first embodiment Maximum difference is, in the present embodiment, is provided with the first branch 200 in plug-in type ultrasonic flowmeter and described the One ultrasonic transducer 220 is located at the first acoustic mirror 240 of different height, relative, is additionally provided with the second branch 300 It is located at the second acoustic mirror 340 of sustained height with the first acoustic mirror 240 on the first branch 200, first sound is anti- In the central axis of the line and pipeline 400 of penetrating the acoustic mirror 340 of mirror 240 and second is generally aligned in the same plane.
Preferably, in the present embodiment, the first ultrasonic transducer 220 and the second ultrasonic transducer 320 can be arranged on The center of sustained height, the i.e. line of the first ultrasonic transducer 220 and the second ultrasonic transducer 320 and the pipeline 400 Axis is parallel, now, by the first ultrasonic transducer 220, the first acoustic mirror 240, the second acoustic mirror 340 and second Central axis of the plane that ultrasonic transducer 320 is formed just past pipeline 400.Preferably, the reflection of two acoustic mirrors The direction that face is set and the central axis of pipeline 400 are in 45° angle;Line between two acoustic mirrors just with pipeline 400 Central axis is overlapped, i.e., two acoustic mirrors are arranged on the central axis of pipeline 400.
It is understood that in other embodiments, by the first ultrasonic transducer 220, the first acoustic mirror 240, The plane that two acoustic mirrors 340 and the second ultrasonic transducer 320 are formed can also with the central axis of pipeline 400 in being less than or Direction equal to 45 ° of angles is set, and now by the plane in the plane projection where the central axis of pipeline 400, then carries out phase The data reduction answered.
In the present embodiment, when carrying out flow velocity measurement, by the ultrasonic signal that the first ultrasonic transducer 220 is sent through The reflective surface of one acoustic mirror 240 is simultaneously incided on the reflecting surface of rising tone speculum 340, then by the second acoustic mirror 340 reflective surface is reached on the signal receiving plane of the second ultrasonic transducer 320;Relative, by the second ultrasonic wave transducer Reflective surface of the ultrasonic signal that device 320 is sent through the second acoustic mirror 340 simultaneously incides the anti-of the first acoustic mirror 240 Penetrate on face, then reached by the reflective surface of the first acoustic mirror 240 on the signal receiving plane of the first ultrasonic transducer 220.
It refer to Fig. 5 and Fig. 6, in the present embodiment, the first branch 200 of plug-in type ultrasonic flowmeter and the second branch At the different height in portion 300, the multigroup ultrasonic transducer and acoustic mirror structure similar with said structure can also be set, often It is anti-by two sound by the ultrasonic signal that a ultrasonic transducer is sent in group ultrasonic transducer and acoustic mirror structure Penetrate mirror and reach another corresponding ultrasonic transducer.Now, each group of ultrasonic transducer and acoustic mirror structure be all A metering probe component 140 can be integrated into be configured, structure is more simplified and stably.In the knot shown in Fig. 5 and Fig. 6 In structure, the both ends of each metering probe component 140 can regard two branches as, have at the different height of main inserted link 100 There is multigroup branch.
The plug-in type ultrasonic flowmeter that the present embodiment provides, by measuring sound wave from the transducing positioned at the upstream of pipeline 400 Device arrives propagation time of downstream transducer again by two acoustic mirrors successively, and from the transducer positioned at the downstream of pipeline 400 Arrive the propagation time of upstream transducer again by two acoustic mirrors, sound wave can be calculated along following current and the propagation time of adverse current Difference, you can enter a ripple and calculate average discharge in the flow velocity and pipe of opening position pipeline 400 Nei.
In summary, the plug-in type ultrasonic flowmeter and Flow Measuring System that the utility model embodiment provides, pass through It will be measured in one end insertion pipeline of main inserted link, the first branch and the are symmetrical arranged at the upstream and downstream interval of pipeline Two branches, and be correspondingly arranged the first ultrasonic transducer on first branch and second branch and the second surpass Acoustic wave transducer, it may make up a flow velocity measurement ultrasonic wave sound channel;In addition, the first ultrasonic transducer and the second ultrasonic wave transducer The position correspondence of device so that the transmission quality of acoustic signals is higher, is easy to the point flow velocity of a certain position in accurate measurement pipe.With showing There is technology to compare, the signal reception of plug-in type ultrasonic flowmeter provided by the utility model is stronger, and interchannel noise is smaller, Battery powered can be used, realizes the accurate measurement to pipeline water flow low flow velocity and flow, and structure is more stable, is easy to pacify Dress.Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this area For technical staff, the utility model can have various modifications and variations.It is all within the spirit and principles of the utility model, institute Any modification, equivalent substitution and improvements of work etc., should be included within the scope of protection of the utility model.

Claims (10)

  1. A kind of 1. plug-in type ultrasonic flowmeter, applied to pipeline, it is characterised in that including main inserted link, the main inserted link insertion One end in the pipeline, which has, is spaced symmetrically arranged first branch and the second branch, first branch and described Second branch is separately positioned on the upstream and downstream of the pipeline, and the first ultrasonic wave transducer is provided with first branch Device, the second ultrasonic transducer with the position correspondence of first ultrasonic transducer is provided with second branch.
  2. 2. plug-in type ultrasonic flowmeter according to claim 1, it is characterised in that first branch is in the pipe Multiple ultrasonic transducers are additionally provided with different height in road, are additionally provided with second branch and described first point Multiple ultrasonic transducer quantity in branch are identical and multiple ultrasonic transducers of position correspondence, first branch and Each two ultrasonic transducer corresponding to position forms a ultrasonic wave sound channel, each ultrasonic wave on second branch The centerline axis parallel of straight line and the pipeline where sound channel.
  3. 3. plug-in type ultrasonic flowmeter according to claim 1, it is characterised in that be provided with first branch Be located at the first acoustic mirror of different height with first ultrasonic transducer, be provided with second branch with it is described First acoustic mirror is located at the company of the second acoustic mirror of sustained height, first acoustic mirror and second acoustic mirror In the central axis of line and the pipeline is generally aligned in the same plane,
    It is incorporated to by reflective surface of the ultrasonic signal that first ultrasonic transducer is sent through first acoustic mirror It is mapped on the reflecting surface of second acoustic mirror, then is reached and described the second surpassed by the reflective surface of second acoustic mirror Acoustic wave transducer,
    It is incorporated to by reflective surface of the ultrasonic signal that second ultrasonic transducer is sent through second acoustic mirror It is mapped on the reflecting surface of first acoustic mirror, then is reached and described the first surpassed by the reflective surface of first acoustic mirror Acoustic wave transducer.
  4. 4. plug-in type ultrasonic flowmeter according to claim 3, it is characterised in that first branch and described Multigroup ultrasonic transducer and acoustic mirror structure are additionally provided with the different height of two branches,
    Ultrasonic transducer described in every group and the ultrasonic signal warp in acoustic mirror structure, sent by a ultrasonic transducer Cross two acoustic mirrors and reach another corresponding ultrasonic transducer.
  5. 5. plug-in type ultrasonic flowmeter according to claim 1, it is characterised in that the main inserted link passes through link flange It is fixedly mounted on the pipeline.
  6. 6. plug-in type ultrasonic flowmeter according to claim 1, it is characterised in that be provided with axial direction on the main inserted link Index line, the centerline axis parallel of the axial index line and the pipeline.
  7. 7. plug-in type ultrasonic flowmeter according to claim 1, it is characterised in that be provided with scale on the main inserted link Or neck, insertion depth of the main inserted link in the pipeline is controlled with control.
  8. 8. a kind of Flow Measuring System, it is characterised in that including the plug-in type ultrasonic wave as described in any one of claim 1 to 7 Flowmeter, time difference measurement unit, reference clock unit, MCU microprocessors, LCD/Buttons is shown and push-button unit, INTF connect Mouth unit, DL peripheral data storage units, RTC real time clock units and PMU battery management units,
    The time difference measurement unit and the MCU microprocessors are connected with the plug-in type ultrasonic flowmeter respectively,
    The reference clock unit and the MCU microprocessors are connected with the time difference measurement unit respectively,
    The LCD/Buttons is shown and push-button unit, the INTF interface units, the DL peripheral data storage units, institute State RTC real time clock units and the PMU battery management units are connected with the MCU microprocessors respectively.
  9. 9. Flow Measuring System according to claim 8, it is characterised in that also including temperature sensor, pressure sensor, Temperature measurement unit TMP and pressure measurement cell P,
    The temperature sensor is arranged on the main inserted link of the plug-in type ultrasonic flowmeter, the temperature measurement unit TMP Connected with the time difference measurement unit,
    The pressure sensor is arranged on the main inserted link of the plug-in type ultrasonic flowmeter, the pressure measurement cell P and The MCU microprocessors connection.
  10. 10. Flow Measuring System according to claim 8, it is characterised in that the sensor of the time difference measurement unit connects Enter end and be additionally provided with multichannel change-over switch.
CN201720845492.3U 2017-07-12 2017-07-12 Plug-in type ultrasonic flowmeter and Flow Measuring System Active CN207147568U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107179106A (en) * 2017-07-12 2017-09-19 成都声立德克技术有限公司 Plug-in type ultrasonic flowmeter, Flow Measuring System and method
CN109084853A (en) * 2018-08-31 2018-12-25 浙江启尔机电技术有限公司 A kind of axial direction multichannel formula ultrasonic flow rate measuring device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107179106A (en) * 2017-07-12 2017-09-19 成都声立德克技术有限公司 Plug-in type ultrasonic flowmeter, Flow Measuring System and method
CN109084853A (en) * 2018-08-31 2018-12-25 浙江启尔机电技术有限公司 A kind of axial direction multichannel formula ultrasonic flow rate measuring device
CN109084853B (en) * 2018-08-31 2021-05-04 浙江启尔机电技术有限公司 Axial multichannel formula supersound flow measuring device

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