CN106153149B - Two-phase flow containing rate ultrasonic echo measurement method - Google Patents

Two-phase flow containing rate ultrasonic echo measurement method Download PDF

Info

Publication number
CN106153149B
CN106153149B CN201610577470.3A CN201610577470A CN106153149B CN 106153149 B CN106153149 B CN 106153149B CN 201610577470 A CN201610577470 A CN 201610577470A CN 106153149 B CN106153149 B CN 106153149B
Authority
CN
China
Prior art keywords
ultrasonic
echo
interface
phase
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610577470.3A
Other languages
Chinese (zh)
Other versions
CN106153149A (en
Inventor
谭超
辛子为
董峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin University
Original Assignee
Tianjin University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin University filed Critical Tianjin University
Priority to CN201610577470.3A priority Critical patent/CN106153149B/en
Publication of CN106153149A publication Critical patent/CN106153149A/en
Application granted granted Critical
Publication of CN106153149B publication Critical patent/CN106153149B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2962—Measuring transit time of reflected waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2965—Measuring attenuation of transmitted waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/024—Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/032—Analysing fluids by measuring attenuation of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/011—Velocity or travel time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/015—Attenuation, scattering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/10—Number of transducers
    • G01N2291/101—Number of transducers one transducer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Volume Flow (AREA)

Abstract

The present invention relates to a kind of two-phase flow containing rate ultrasonic echo measurement methods, it is measured for the procedure parameter to the two-phase fluid for flowing through tested pipeline, the measurement method will be placed in tested pipeline bottom end using the ultrasonic sensor of single ultrasonic probe and not contact with measured medium, ultrasonic signal occurs and detection unit is realized that the reiving/transmitting state of ultrasonic probe is realized switching by two single-pole double-throw switch (SPDT)s by same ultrasonic probe；This switch combination can control the acquisition timing of transmitting signal and echo signal simultaneously；By acoustic impedance huge dielectric interface is differed using ultrasound can generate strong reflection and obtain the position of tested two-phase fluid interface, and combine ultrasound intensity attenuation rate, gas-liquid interface curvature is compensated, accurate two-phase flow section phase content is calculated.The present invention is able to ascend measurement accuracy.

Description

Two-phase flow containing rate ultrasonic echo measurement method
Technical field
The invention belongs to fluid measurement technical fields, are related to a kind of utilization ultrasonic pulse-echo method measurement gas-liquid two-phase flow containing rate Test method, it can be achieved that phase seperation containing rate in two-phase stream accurate acquisition.
Technical background
Two-phase flow phenomenon is widely present in the industrial circles such as petroleum, chemical industry and medicine.Two phase flow is since there is alternate Interaction is so that the parameter measurement of two phase flow is increasingly complex compared to one-way flow.However diphasic stream parameter it is accurate measurement for It is most important to improve yield, production safety etc..Key parameter of the phase content as two phase flow, acquisition methods are varied, mesh Preceding most common method has electric method and ultrasonic method.
Ultrasonic wave is in level gauging, metal defect detection and field of fluid measurement using more and more extensive.Ultrasonic wave is compared In other some contacts and non-contact measurement have non-intruding, spread speed are fast, influence is nearly free from measured medium, The advantages such as good directionality, penetration capacity be strong, propagation distance is remote in water, therefore more and more grind is received in field of fluid measurement Study carefully the concern of personnel.
Ultrasonic wave is propagated in the form of mechanical oscillation outward as a kind of mechanical wave, is usually expressed as the form of longitudinal wave, together When there are the characteristics such as reflection, refraction, scattering, diffraction as a kind of sound wave again, ultrasonic wave is applied to field of fluid measurement at present It is mainly reflected in two methods, i.e. pulse echo method and ultrasonic Doppler.The pulse echo method of ultrasound is according under certain condition Speed of the ultrasound in same medium is certain, time of propagation and apart from this directly proportional principle extraction time or apart from the two Variable, or be Direct Variable or be used to embody its dependent variable.Ultrasonic Doppler is according to this change of Doppler effect extraction rate Amount.
Reflex can occur when the medium interface that ultrasonic wave differs greatly by two kinds of acoustic impedances, and (99% energy above is returned Return), spread speed of the ultrasonic wave in same medium is constant under certain condition, therefore can calculate section phase by the propagation time Containing rate, i.e. ultrasonic pulse-echo method surveys section phase content.This method only under the premise of dielectric interface is plane just more Accurately, however in actual measurement, due to the effect of surface tension, the normal shape in curved surface of liquid surface causes measurement error.
Summary of the invention
The object of the present invention is to propose a kind of modification method in view of the above deficiencies, can correct when interface becomes bent from plane Contain rate variation when face accordingly, so that measurement result is more accurate.The present invention is cut using single ultrasonic sensor measurement two phase flow Face contains rate, does not generate disturbance to two-phase flow and is not necessarily to carry out pre-separation or mixing to measurement fluid, realizes two phase flow process point Phase content quick and precisely obtains.Technical scheme is as follows:
A kind of two-phase flow containing rate ultrasonic echo measurement method, for the process ginseng to the two-phase fluid for flowing through tested pipeline Number measure, the measurement method by using single ultrasonic probe ultrasonic sensor be placed in tested pipeline bottom end and with tested Jie Matter does not contact, and ultrasonic signal occurs and detection unit is realized that the reiving/transmitting state of ultrasonic probe is by two lists by same ultrasonic probe Double-pole double throw switch switches to realize；This switch combination can control the acquisition timing of transmitting signal and echo signal simultaneously；Using super Sound, which differs huge dielectric interface by acoustic impedance, can generate strong reflection to obtain the position of tested two-phase fluid interface, and In conjunction with ultrasound intensity attenuation rate, gas-liquid interface curvature is compensated, calculates accurate two-phase flow section phase content, measurement side Method is as follows:
1) acquires ultrasonic sensor signal, obtains ultrasonic echo time t1With echo strength Pb；
2) calculates the time that ultrasonic wave enters detected fluid from probe through tube wallWherein s is ultrasonic probe and pipe The distance of road inner wall, cgFor the spread speed of ultrasonic wave in the pipe wall.
3) calculates the two-way time t=t of ultrasound in the liquid phase1-2t2, and then calculate the position of pipeline section liquid-gas interface Set h=1/2cWT, i.e. liquid phase are in the height of pipeline section, wherein cWFor the speed of ultrasonic wave in water, h is liquid-gas interface Highly；
4) calculates ultrasonic echo referring to intensity Ph=ah+b, wherein PhFor the reference intensity at height h, unit Pa, a For intensity-height ratio coefficient, b is corrected parameter；
5) brings liquid level h into, calculates gas phase content α when interface is planegf=dh+e, d are containing rate-height ratio Example coefficient, e is corrected parameter；
6) calculates the k=fh containing rate coefficient with gas-liquid interface height change2+ gh+i, wherein f is quadratic fit coefficient, g For once fitting coefficient, i is correction factor, and it is actually strong referring to intensity echo with ultrasonic echo that k containing rate coefficient characterizes gas phase content Degree with thanRate of change；
7) substitutes into ultrasonic echo referring to intensity Ph, referring to gas phase content αgf, echo actual strength PbAnd k value, utilize public affairs FormulaCalculate practical gas phase content αgb, when interface is plane, that is, echo intensity ratioGas phase is real when being 1 Border is equal containing rate with gas phase theory containing rate, and above parameter a, b, d, e, f, g, h are obtained by experiment.
Advantageous effect of the invention and advantage are as follows:
1, single ultrasonic probe internal loopback has sensor install convenient, occupied space few, and measuring speed is fast, cost Low advantage；
2, have the characteristics that non-intruding is radiationless, any disturbance will not be generated to fluid；
3, this method is not only limited to measuring under horizontal interface containing rate, can also calculate the change of pipeline section gas-liquid interface curvature Change caused by changing containing rate.
Detailed description of the invention
The selected embodiment of the present invention is described with the following figure, is exemplary diagram and non exhaustive or restricted, in which:
Fig. 1 inventive pipeline section ultrasonic sensor scheme of installation；
Phase content calculation method flow chart Fig. 2 of the invention.
Specific embodiment
It is described in detail below to manufacture and operate step of the invention, it is intended to be described as the embodiment of the present invention, be not The unique forms that can be manufactured or be utilized can realize that the embodiment of identical function should also be included in the scope of the present invention to other It is interior.Below with reference to the instruction sheet embodiment that the present invention will be described in detail.
Fig. 1 apparatus of the present invention pipeline section ultrasonic sensor scheme of installation.The organic glass of standard that the pipeline is 1 cun of internal diameter Glass pipe, including tube wall 5 and pipeline inner region 2 and 3, transceiver ultrasonic probe 1 are installed on duct bottom, and 2 fluid of region is situated between Matter is air, and region 3 is water, and 4 be the interface of air and water.S be ultrasonic probe at a distance from inner wall of the pipe in this example For 4mm, according to formulaUltrasonic wave can be calculated and issue the time t for traveling to inner wall of the pipe by probe2For 1.465us, Middle cgIt is 2730m/s under the spread speed normal temperature and pressure for being ultrasonic wave in organic glass, propagation time t can in water for ultrasonic wave It is obtained according to formula (1)
T=t1-2t2 (1)
Wherein t1For the time of return of ultrasonic wave, can be obtained by acquisition data.It can be calculated as shown in figure 1 according to formula (2) Shown pipeline bottom end inner wall and gas-liquid interface distance h
H=1/2cWt (2)
C in formulaWFor the speed of ultrasonic wave in water, t is the time that ultrasonic wave is propagated in water, and h is the height of water., root According to formula
αgf=dh+e (3)
Calculate the reference gas phase content α of different liquid level lower sectionsgf.D is containing rate-height ratio coefficient, and e is amendment Parameter.Further according to formula
Ph=ah+b (4)
Calculate the reference echo intensity P under different liquid levelsh.A is intensity-height ratio coefficient, and b is amendment ginseng Number.
In actually flowing, air water interface is often form shown in curve 6 in figure, when air water interface becomes bent from plane The variation in region 7 and 13 in figure is caused when face, region shared by gas phase is reduced by 2,7,8 for 2 so that gas phase content Become smaller, according to formula
K=fh2+gh+i (5)
K containing rate coefficient is calculated, f is quadratic fit coefficient, and g is once fitting coefficient, and i is correction factor.Calculated k Value reaction air water interface under present level gas phase content with echo actual strength and echo referring to intensity ratioVariation speed Rate.It can uniquely be obtained by h under certain experiment condition.
Finally by the collected ultrasonic actual echo intensity P of ultrasonic probeb, k containing rate coefficient, echo is referring to intensity Ph, reference Gas phase content αgfBring formula into
Practical gas phase content α when interface is curved surface can be extrapolatedgb.When interface remains plane, gas phase is practical contains rate αgbWith gas phase referring to α containing rategfIt is equal.
Due under the conditions of this is exemplary internal diameter of the pipeline be 1 cun and at normal temperatures and pressures the i.e. ultrasonic wave that carries out air, The speed propagated in water and organic glass is definite value therefore above parameter a, b, d, e, f, g, h can be uniquely determined.A=-2483, b =84341, d=-4.7, e=110, f=-0.23, g=3.95, i=17.87.
Fig. 2 is section phase content calculation flow chart of the invention.
Specific implementation method is as follows:
1) calibration experiment is carried out to pipeline and is believed that on section, air water interface is plane under this condition, by 1 institute of attached drawing The pipeline internal water shown is drained and blocks two openings with the syringe of a readable capacity to filling the water in pipeline, one constant volume of every injection The water of amount carries out one-shot measurement, obtains one group of echo strength with the data of interface height change, in the conditions of the invention its Regular meeting formula (4).One group of section gas phase content is obtained simultaneously with the data of interface height change, is met under the conditions of of the invention Formula (3).
2) pipeline is installed in measuring device and carries out actual measurement, air water interface in section is generally curved surface at this time, uses Air and water are extracted out and squeezed into mixer by air pump and water pump is sufficiently mixed flow direction experiment pipeline section, after flow pattern sufficiently develops Start to measure, reads ultrasonic echo time t1And intensity PbThe two parameters.By t1It brings formula (1) (2) into and finds out interface at this time Height h, this is highly brought into formula (5) and finds out k containing rate coefficient, and according to highly finding out in step 1 by this height The echo of calibration is referring to intensity PhAnd referring to gas phase content αgfBy this 3 parameters and the ultrasonic actual ghosts intensity by reading PbBringing formula (4) into can calculate that gas phase when required interface is curved surface is practical to contain rate αgb。

Claims (1)

1. a kind of two-phase flow containing rate ultrasonic echo measurement method, for the procedure parameter to the two-phase fluid for flowing through tested pipeline It measures, which will be placed in tested pipeline bottom end and and measured medium using the ultrasonic sensor of single ultrasonic probe It does not contact, ultrasonic signal occurs and detection unit is realized that the reiving/transmitting state of ultrasonic probe is by two hilted broadswords by same ultrasonic probe Commutator switches to realize；This switch combination can control the acquisition timing of transmitting signal and echo signal simultaneously；Utilize ultrasound Huge dielectric interface is differed by acoustic impedance can generate strong reflection and obtain the position of tested two-phase fluid interface, and tie Ultrasound intensity attenuation rate is closed, gas-liquid interface curvature is compensated, accurate two-phase flow section phase content, measurement method are calculated It is as follows:
1) acquires ultrasonic sensor signal, obtains ultrasonic echo time t1With echo strength Pb；
2) calculates the time that ultrasonic wave enters detected fluid from probe through tube wallWherein s is in ultrasonic probe and pipeline The distance of wall, cgFor the spread speed of ultrasonic wave in the pipe wall；
3) calculates the two-way time t=t of ultrasound in the liquid phase1-2t2, and then calculate the position h=of pipeline section liquid-gas interface 1/2cWT, i.e. liquid phase are in the height of pipeline section, wherein cWFor the speed of ultrasonic wave in water, h is the height of liquid-gas interface；
4) calculates ultrasonic echo referring to intensity Ph=ah+b, wherein PhFor the reference intensity at height h, unit Pa, a are strong Degree-height ratio coefficient, b are corrected parameter；
5) brings the height h of liquid-gas interface into, calculates gas phase content α when interface is planegf=dh+e, d are containing rate-height Proportionality coefficient is spent, e is corrected parameter；
6) calculates the k=fh containing rate coefficient with gas-liquid interface height change2+ gh+i, wherein f is quadratic fit coefficient, g mono- Secondary fitting coefficient, i are correction factor, k containing rate coefficient characterize gas phase content with ultrasonic echo referring to intensity echo actual strength with ThanRate of change；
7) substitutes into ultrasonic echo referring to intensity Ph, referring to gas phase content αgf, echo actual strength PbAnd k value, utilize formulaCalculate practical gas phase content αgb, when interface is plane, that is, echo intensity ratioGas phase is practical when being 1 Equal containing rate with gas phase theory containing rate, above parameter a, b, d, e, f, g, h are obtained by experiment.
CN201610577470.3A 2016-07-19 2016-07-19 Two-phase flow containing rate ultrasonic echo measurement method Active CN106153149B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610577470.3A CN106153149B (en) 2016-07-19 2016-07-19 Two-phase flow containing rate ultrasonic echo measurement method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610577470.3A CN106153149B (en) 2016-07-19 2016-07-19 Two-phase flow containing rate ultrasonic echo measurement method

Publications (2)

Publication Number Publication Date
CN106153149A CN106153149A (en) 2016-11-23
CN106153149B true CN106153149B (en) 2019-01-15

Family

ID=58059387

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610577470.3A Active CN106153149B (en) 2016-07-19 2016-07-19 Two-phase flow containing rate ultrasonic echo measurement method

Country Status (1)

Country Link
CN (1) CN106153149B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106932476A (en) * 2017-05-05 2017-07-07 中国计量大学 A kind of device and method for measuring solid-liquid two-phase flow phase content
CN110108797B (en) * 2019-04-30 2021-07-30 天津大学 Medium interface ultrasonic detection method utilizing acoustic impedance change information
CN113075292B (en) * 2020-01-03 2023-12-22 广州汽车集团股份有限公司 Method and device for measuring quality of engine oil of automobile and storage medium
CN111475944B (en) * 2020-04-03 2023-03-28 广西大学 Quantitative analysis method for concrete filled steel tube top void area
CN113720765B (en) * 2020-05-25 2023-10-20 中国石油化工股份有限公司 Method and system for detecting corrosion state of gas pipeline
CN112129832B (en) * 2020-08-11 2024-02-13 天津大学 Sweep frequency ultrasonic attenuation measurement method for detecting content of disperse phase
CN113933385A (en) * 2021-10-08 2022-01-14 哈尔滨工程大学 Oil and gas share measuring device and method based on ultrasonic fusion technology
CN116297823A (en) * 2023-03-20 2023-06-23 浙江大学 Multiphase fluid content prediction method based on ultrasonic measurement
CN117368518B (en) * 2023-12-04 2024-02-23 湖北工业大学 System and method for measuring ultrasonic flight time in pipeline

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1414382A (en) * 2002-08-30 2003-04-30 天津大学 Detector of gas liquid two phase flow split-phase content based on resistance chromatographic imaging and method
US20110098938A1 (en) * 2007-09-18 2011-04-28 Schlumberger Technology Corporation Multiphase flow measurement
EP2453230A1 (en) * 2010-11-10 2012-05-16 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Separation of liquid components from a mixture with ultrasound monitoring
CN202916242U (en) * 2012-09-03 2013-05-01 梁法春 Flow pattern online monitoring device for gas-liquid two-phase flow
CN104820013A (en) * 2015-04-20 2015-08-05 天津大学 Two-phase flow content measuring method based on electromagnetic eddy detection
CN105044205A (en) * 2015-04-17 2015-11-11 北京理工大学 Gas-liquid two-phase flow ultrasound flexibility array detection method based on probabilistic algorithmic

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1414382A (en) * 2002-08-30 2003-04-30 天津大学 Detector of gas liquid two phase flow split-phase content based on resistance chromatographic imaging and method
US20110098938A1 (en) * 2007-09-18 2011-04-28 Schlumberger Technology Corporation Multiphase flow measurement
EP2453230A1 (en) * 2010-11-10 2012-05-16 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Separation of liquid components from a mixture with ultrasound monitoring
CN202916242U (en) * 2012-09-03 2013-05-01 梁法春 Flow pattern online monitoring device for gas-liquid two-phase flow
CN105044205A (en) * 2015-04-17 2015-11-11 北京理工大学 Gas-liquid two-phase flow ultrasound flexibility array detection method based on probabilistic algorithmic
CN104820013A (en) * 2015-04-20 2015-08-05 天津大学 Two-phase flow content measuring method based on electromagnetic eddy detection

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"多相流过程参数检测技术综述";谭超 等;《自动化学报》;20131130;第39卷(第11期);第1923-1932页

Also Published As

Publication number Publication date
CN106153149A (en) 2016-11-23

Similar Documents

Publication Publication Date Title
CN106153149B (en) Two-phase flow containing rate ultrasonic echo measurement method
RU2498230C2 (en) Method and device for measuring flow rate of wet gas and determination of gas characteristics
RU2499229C2 (en) Method and apparatus for determining composition and flow rate of wet gas
CN202916242U (en) Flow pattern online monitoring device for gas-liquid two-phase flow
NO326977B1 (en) Method and apparatus for measuring the conductivity of the water fraction in a wet gas
AU2011295673A1 (en) Multiphase fluid characterization system
US9612145B2 (en) Revolving ultrasound field multiphase flowmeter
Liang et al. Gas–liquid two-phase flow pattern identification by ultrasonic echoes reflected from the inner wall of a pipe
CN104677437A (en) Ultrasonic liquid phase flow rate precision measuring method
Meribout et al. A multisensor intelligent device for real-time multiphase flow metering in oil fields
NO20121398A1 (en) A method and apparatus for multiphase measurement near deposits on the pipe wall
CN106443059A (en) Fluid velocity measurement method, fluid metering method and flowmeter
Zhao et al. Ultrasonic method for measuring water holdup of low velocity and high-water-cut oil-water two-phase flow
WO2005031279A1 (en) Two phase flow sensor using tomography techniques
CN104568375A (en) Non-intrusive measuring device and method for slug flow parameter
CN101408448A (en) High-frequency high-precision water-level change meter
CN105675437A (en) Displacement difference solution density measuring equipment and measuring equipment thereof
CN111693109A (en) Multifunctional storage tank liquid level meter
CN111693118A (en) Calibration method of top-mounted magnetic turn-over plate liquid level meter
Li et al. Research on transit-time ultrasonic flowmeter with signal characteristic analysis
Chen et al. Research on a transit-time liquid ultrasonic flowmeter under unstable flow fields
CN105628108B (en) The device and method of biphase gas and liquid flow flow in a kind of measurement vertical pipeline
CN114252111A (en) River flow measuring method based on radar signals
KR101379934B1 (en) Apparatus and method for measuring the thickness of the scale in a pipe
CN103123294B (en) A kind of method differentiating multiphase flow pattern

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant