CN109839158A - A kind of combination commutation system of ultrasonic flowmeter - Google Patents
A kind of combination commutation system of ultrasonic flowmeter Download PDFInfo
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- CN109839158A CN109839158A CN201910194656.4A CN201910194656A CN109839158A CN 109839158 A CN109839158 A CN 109839158A CN 201910194656 A CN201910194656 A CN 201910194656A CN 109839158 A CN109839158 A CN 109839158A
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- ultrasonic flowmeter
- rectification system
- flowmeter
- flow
- flowmeter according
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- 238000005259 measurement Methods 0.000 claims abstract description 20
- 230000004323 axial length Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 12
- 239000007789 gas Substances 0.000 abstract description 9
- 239000003345 natural gas Substances 0.000 abstract description 6
- 230000002262 irrigation Effects 0.000 abstract description 4
- 238000003973 irrigation Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000009776 industrial production Methods 0.000 abstract description 3
- 238000003723 Smelting Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000011161 development Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 241000883990 Flabellum Species 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 241001075561 Fioria Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
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- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
Flow is used as detection parameters together with three kinds of temperature, pressure thermal technology's amounts, and the accuracy of metering occupies an important position in modern industrial production automation.And means of account settlement of the flowmeter as flow measurement, it is used widely in fields such as commerce and trades clearing, the industrial productions such as chemical industry smelting, oil and natural gas conveying, irrigation and water conservancy irrigation, domestic water meter and gas meter, flow meter.Wherein, with the change of China's energy resource structure, specific gravity of the natural gas in energy consumption is increasing, and natural gas transportation and the clearing demand used have driven the fast development of Ultrasonic Wave Flowmeter.The present invention devises a kind of combination commutation system of ultrasonic flowmeter for the purpose of the accuracy of dose for improving Ultrasonic Wave Flowmeter, realizes precise measurement of the ultrasonic flowmeter under gas flowfield mess, the application range of widened ultrasonic flowmeter.
Description
Technical field
The present invention relates to flow fieldoptimization technical field, in particular to the combination commutation system of a kind of ultrasonic flowmeter is applicable in
It is rectified in the flow field of Ultrasonic Wave Flowmeter, is conducive to the measurement accuracy for improving ultrasonic flowmeter.
Background technique
The own characteristic of ultrasonic flowmeter there are certain requirements it to site application conditions in use, otherwise will affect meter
Accuracy of measurement, this point is to the design of ultrasonic flowmeter, installation and using particularly important.Influence gas ultrasonic flowmeter precision
Factor includes: geometric dimension error, the sound transit-time measurement error, temperature/pressure that the pipe section flow rate based on fluidised form selected, measured cutting back
It is accidentally touched caused by when measurement error caused by measurement error, pipe roughness change, signal are decayed or interfered by outside noise
Send out measurement error, Flow Field Distribution distortion error caused by error, gas.
It distorts about Flow Field Distribution, main cause is flow control valve, bend pipe, bypass, pipe flange connection in pipeline
The dislocation etc. at place causes flow field change or generates vortex and other transverse flows, so as to cause measurement error.It is surveyed to improve flow
Accuracy of measurement, the influence that channel ultrasonic measurement method can be used flow distortion is overcome to generate.In addition, in the upstream and downstream of measuring section
The straight pipe or rectification section for guaranteeing installation certain length, can prevent to be vortexed, and improve metering reliability and have efficacious prescriptions
Method.
For specific flow field condition or special channel layout, generally requires a kind of rectifier and rectified, it will
Gas flowfield adjusting is the turbulence flow flied under particular form, measures and calculates convenient for ultrasonic flowmeter.
Summary of the invention
The present invention is the technical problem solved in background technique, proposes a kind of combination commutation system of ultrasonic flowmeter,
For fluid after turbulator, buffering straight pipe, flow field will form the distortion of specific fluidised form, flow through after porous plate to be vortexed into
Row integration, forms fully developed flow, and liquid flow pattern is symmetrical, and combination, which embeds peculiar algorithm, at this time can count flow velocity
It calculates.
The technical scheme adopted by the invention is that: a kind of combination commutation system of ultrasonic flowmeter, it is embedded to be installed on pipe
It in road, is mainly made of turbulator and porous plate, the turbulator uses fan leaf chip, the turbulator
Buffering straight pipe is provided between porous plate.
The turbulator is designed as 8, and every 30 degree of flabellum twisting gradient, turbulator central fixed shaft is interior
The hollow cylinder of diameter 3mm, wall thickness 1mm, generator axial length 3cm.
The porous plate is by 1 internal diameter 22mm rectification hole, 8 internal diameter 14mm rectification holes, 24 internal diameter 8mm rectification hole structures
At.
The rectification hole is circle.
The porous plate of corrosion resistant metal plate punching by being made.
It combines and passes through airtight processing between the outer wall and inner wall of the pipe of commutation system.
The buffering straight pipe of 3cm long is provided between the turbulator and porous plate.
The turbulent flow that gas flowfield is rectified into particular form is measured for ultrasonic flowmeter, and ultrasonic flowmeter is measuring
In measurement data is filtered by extended Kalman filter
The advantages and positive effects of the present invention: flow is used as detection parameters, metering together with three kinds of temperature, pressure thermal technology's amounts
Accuracy modern industrial production automation in occupy an important position.And means of account settlement of the flowmeter as flow measurement,
The commerce and trades such as chemical industry smelting, oil and natural gas conveying, irrigation and water conservancy irrigation, domestic water meter and gas meter, flow meter clearing, industry are raw
It is used widely in the fields such as production.Wherein, with the change of China's energy resource structure, specific gravity of the natural gas in energy consumption is more next
Bigger, natural gas transportation and the clearing demand used have driven the fast development of Ultrasonic Wave Flowmeter.The present invention is to improve
For the purpose of the accuracy of dose of Ultrasonic Wave Flowmeter, a kind of combination commutation system of ultrasonic flowmeter is devised, is realized
Precise measurement of the ultrasonic flowmeter under gas flowfield mess, the application range of widened ultrasonic flowmeter.Specifically
It is as follows:
1. the combination commutation system is made of turbulator and porous plate, by the comprehensive rectification of two components, effect is more
It is good.
2. the combination commutation system is embedded installation, convenient for construction.
3. combination commutation system output is the turbulence flow flied of particular form, measurement and meter convenient for ultrasonic flowmeter
It calculates.
4. the combination commutation system is made of resistant material, long service life.
Detailed description of the invention
Fig. 1 is perforated plate construction schematic diagram of the present invention.
Fig. 2 is turbulator structural schematic diagram of the present invention
Rectification effect figure when Fig. 3 is Re=4000.
Rectification effect figure when Fig. 4 is Re=16000.
Fig. 5 is overall structure of the present invention.
Appended drawing reference: 1- turbulator, 2- buffer straight pipe, 3- porous plate.
Specific embodiment
Below by specific embodiments and the drawings, the present invention is further illustrated.The embodiment of the present invention is in order to more
So that those skilled in the art is more fully understood the present invention well, any limitation is not made to the present invention.
The present invention proposes a kind of ultrasonic flowmeter combination commutation system, as shown in figure 5, whole includes a fan-type leaf
1, porous plate 3 of turbulator, the buffering straight pipe 2 of piece.Fluid is after turbulator 1, buffering straight pipe 2, stream
Field will form specific fluidised form distortion, integrates after flowing through porous plate 3 to vortex, forms fully developed flow, liquid flow pattern pair
Claim distribution, combination, which embeds peculiar algorithm, at this time can calculate flow velocity.
A kind of combination commutation system of ultrasonic flowmeter, outer diameter 100mm；Fluid uses after passing through fairing
Ultrasonic flowmeter measures, and is filtered by expanded Kalman filtration algorithm to specific velocity field distribution measuring results
High-precision flow measurement is realized in processing；Turbulator 1 uses fan leaf chip.The characteristics of device be flow field is forced it is whole
Reason is specific turbulent condition, carries out flow field analysis for specific turbulent flow, is handled with specific algorithm.
As shown in Fig. 2, the turbulator 1 is designed as 8, every 30 degree of flabellum twisting gradient, in turbulator 1
Between fixing axle be internal diameter 3mm hollow cylinder, wall thickness 1mm, generator axial length 3cm.As shown in Figure 1, the porous plate 3
It is made of 1 internal diameter 22mm rectification hole, 8 internal diameter 14mm rectification holes, 24 internal diameter 8mm rectification holes, each rectification hole is circle
Shape.Porous plate 3 described in the present embodiment of corrosion resistant metal plate punching by being made.
Buffering straight pipe 2 is provided in the present embodiment between turbulator 1 and porous plate 3.
It is the embedded installation of pipeline that the present invention, which combines commutation system, combines and passes through between the outer wall of commutation system and inner wall of the pipe
Airtight processing
Embodiment:
(1) the fan-type blade turbulator 1 of combination commutation system of the invention is designed as 8, every flabellum twisting
30 degree of gradient, generator central fixed shaft is the hollow cylinder of internal diameter 3mm, wall thickness 1mm, generator axial length 3cm, turbulent flow
There is the buffering straight pipe 2 of 3cm long between generator 1 and porous plate 3.
(2) as shown in Figure 1, the porous plate 3 of combination commutation system of the invention is made of corrosion resistant metal plate punching, outer diameter
100mm is made of, each rectification hole 1 internal diameter 22mm rectification hole, 8 internal diameter 14mm rectification holes, 24 internal diameter 8mm rectification holes
It is circle, axial length 3cm.
(3) combination commutation system of the invention by gas flowfield be rectified into particular form turbulent flow for ultrasonic flowmeter into
Row measurement, ultrasonic flowmeter pass through extended Kalman filter in the measurements and are filtered to measurement data, and removal is surveyed
Noise is measured, realizes high-precision flow measurement.
Rectification effect comparison diagram when Fig. 2 is Re=4000.
Rectification effect comparison diagram when Fig. 3 is Re=16000.
It should be understood that embodiment and example discussed herein simply to illustrate that, to those skilled in the art
For, it can be improved or converted, and all these modifications and variations all should belong to the protection of appended claims of the present invention
Range.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910194656.4A CN109839158A (en) | 2019-03-14 | 2019-03-14 | A kind of combination commutation system of ultrasonic flowmeter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910194656.4A CN109839158A (en) | 2019-03-14 | 2019-03-14 | A kind of combination commutation system of ultrasonic flowmeter |
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| CN109839158A true CN109839158A (en) | 2019-06-04 |
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| CN201910194656.4A Pending CN109839158A (en) | 2019-03-14 | 2019-03-14 | A kind of combination commutation system of ultrasonic flowmeter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237516A (en) * | 2021-06-03 | 2021-08-10 | 中北大学 | Intelligent ultrasonic measuring system and measuring method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581589A (en) * | 2008-05-12 | 2009-11-18 | 姚贤卿 | Composite mass flowmeter |
| CN101639374A (en) * | 2009-08-26 | 2010-02-03 | 姚贤卿 | Multiphase flow rectifying device |
| CN202119484U (en) * | 2011-07-07 | 2012-01-18 | 莆田市清华园电器发展有限公司 | Water flow sensor and instantaneous electric water heater |
| CN102435233A (en) * | 2011-10-18 | 2012-05-02 | 宁波东海仪表水道有限公司 | Vertical spiral wing type water metering device |
| CN102735297A (en) * | 2012-07-20 | 2012-10-17 | 广州柏诚智能科技有限公司 | Prepositioned flow adjuster of ultrasonic flow meter |
| CN105784031A (en) * | 2016-02-29 | 2016-07-20 | 宁波市鹏盛科技发展有限公司 | Gas rectifying device |
| CN206583495U (en) * | 2016-12-30 | 2017-10-24 | 杭州思筑智能设备有限公司 | A kind of built-in rectifier for Ultrasonic Wave Flowmeter |
| CN207113940U (en) * | 2017-07-28 | 2018-03-16 | 青岛华晨伟业电力科技工程有限公司 | Throat's pressure Long Nozzle throttling arrangement |
| CN108225460A (en) * | 2017-12-29 | 2018-06-29 | 嘉兴乾昆工业设计有限公司 | A kind of intellectual water meter that can check the number of degrees immediately |
| CN208536922U (en) * | 2018-08-09 | 2019-02-22 | 上海埃科燃气测控设备有限公司 | A kind of novel turbine flowmeter |
-
2019
- 2019-03-14 CN CN201910194656.4A patent/CN109839158A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581589A (en) * | 2008-05-12 | 2009-11-18 | 姚贤卿 | Composite mass flowmeter |
| CN101639374A (en) * | 2009-08-26 | 2010-02-03 | 姚贤卿 | Multiphase flow rectifying device |
| CN202119484U (en) * | 2011-07-07 | 2012-01-18 | 莆田市清华园电器发展有限公司 | Water flow sensor and instantaneous electric water heater |
| CN102435233A (en) * | 2011-10-18 | 2012-05-02 | 宁波东海仪表水道有限公司 | Vertical spiral wing type water metering device |
| CN102735297A (en) * | 2012-07-20 | 2012-10-17 | 广州柏诚智能科技有限公司 | Prepositioned flow adjuster of ultrasonic flow meter |
| CN105784031A (en) * | 2016-02-29 | 2016-07-20 | 宁波市鹏盛科技发展有限公司 | Gas rectifying device |
| CN206583495U (en) * | 2016-12-30 | 2017-10-24 | 杭州思筑智能设备有限公司 | A kind of built-in rectifier for Ultrasonic Wave Flowmeter |
| CN207113940U (en) * | 2017-07-28 | 2018-03-16 | 青岛华晨伟业电力科技工程有限公司 | Throat's pressure Long Nozzle throttling arrangement |
| CN108225460A (en) * | 2017-12-29 | 2018-06-29 | 嘉兴乾昆工业设计有限公司 | A kind of intellectual water meter that can check the number of degrees immediately |
| CN208536922U (en) * | 2018-08-09 | 2019-02-22 | 上海埃科燃气测控设备有限公司 | A kind of novel turbine flowmeter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237516A (en) * | 2021-06-03 | 2021-08-10 | 中北大学 | Intelligent ultrasonic measuring system and measuring method |
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Application publication date: 20190604 |