ASME MFC-5 3-2013 Measurement of Liquid Flow in Closed Conduits Using Doppler Ultrasonic Flowmeters《利用多普勒超声波流量计进行封闭管道中液体流动的测量》.pdf
《ASME MFC-5 3-2013 Measurement of Liquid Flow in Closed Conduits Using Doppler Ultrasonic Flowmeters《利用多普勒超声波流量计进行封闭管道中液体流动的测量》.pdf》由会员分享,可在线阅读,更多相关《ASME MFC-5 3-2013 Measurement of Liquid Flow in Closed Conduits Using Doppler Ultrasonic Flowmeters《利用多普勒超声波流量计进行封闭管道中液体流动的测量》.pdf(24页珍藏版)》请在麦多课文档分享上搜索。
1、AN AMERICAN NATIONAL STANDARD ASME MFC-5.32013Measurement of Liquid Flow in Closed Conduits Using Doppler Ultrasonic FlowmetersASME MFC-5.32013Measurement ofLiquid Flow in ClosedConduits UsingDoppler UltrasonicFlowmetersAN AMERICAN NATIONAL STANDARDTwo Park Avenue New York, NY 10016 USADate of Issua
2、nce: July 19, 2013This Standard will be revised when the Society approves the issuance of a new edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard. Periodically certain actions of the ASME MFC Committee may be published as Cases.Cases and
3、 interpretations are published on the ASME Web site under the Committee Pages athttp:/cstools.asme.org/ as they are issued.Errata to codes and standards may be posted on the ASME Web site under the Committee Pages toprovide corrections to incorrectly published items, or to correct typographical or g
4、rammatical errorsin codes and standards. Such errata shall be used on the date posted.The Committee Pages can be found at http:/cstools.asme.org/. There is an option available toautomatically receive an e-mail notification when errata are posted to a particular code or standard.This option can be fo
5、und on the appropriate Committee Page after selecting “Errata” in the “PublicationInformation” section.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandar
6、ds. The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate. The proposed code or standard was madeavailable for public review and comment that provides an opportunity for addition
7、al public input from industry, academia,regulatory agencies, and the public-at-large.ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with any
8、items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent, nor assumes any such liability. Users of a code or standard are expresslyadvised that determination of the validity of any such patent ri
9、ghts, and the risk of infringement of such rights, isentirely their own responsibility.Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only t
10、hose interpretations of this document issued in accordance with the establishedASME procedures and policies, which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written
11、permission of the publisher.The American Society of Mechanical EngineersTwo Park Avenue, New York, NY 10016-5990Copyright 2013 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword ivCommittee Roster . vCorrespondence With the MFC Committee . vi1 General
12、. 12 Principle of Operation . 23 Uncertainty Sources and Uncertainty Reduction . 64 Application and Selection 115 Calibration and Diagnostics 12Figures2.1-1 Doppler Phenomena Without a Scatterer 32.1-2 Doppler Phenomena With a Scatterer . 42.1-3 Doppler Beam Not Parallel to the Flow Direction . 42.1
13、-4 Clamp-On Doppler . 52.2-1 Scatterer Moving Perpendicular to a Transducer . 62.3-1 Doppler Measurement Systems . 73.2.2-1 A Typical Cross-Path Ultrasonic Flowmeter Configuration . 93.2.3-1 Measurement Volume Location and Flow Profile Averaging . 103.2.3-2 Uncertainty in Penetration Depth Due to Pi
14、pe Wall Reflections 10Tables1.3-1 Symbols . 21.3-2 Subscripts 2iiiFOREWORDThe need for a document describing measurement of liquid flows by means of ultrasonicflowmeters has been recognized for many years. The ASME Committee on Measurement of FluidFlow in Closed Conduits (MFC) and its Subcommittee 5
15、: Ultrasonic Flowmeters (SC 5) haveagreed to publish three standards to assist the users in understanding the three technologies:transit time, cross-correlation, and scattering (Doppler).Published in June 2011, ASME MFC-5.1, Measurement of Liquid Flow in Closed Conduits UsingTransit-Time Ultrasonic
16、Flowmeters, applies to ultrasonic flowmeters that base their operation onthe measurement of transit time of acoustic signals. MFC-5.1 concerns the volume flow-ratemeasurement of a single-phase liquid with steady flow or flow varying only slowly with timein a completely filled closed conduit.This Sta
17、ndard, Measurement of Liquid Flow in Closed Conduits Using Doppler UltrasonicFlowmeters, applies to ultrasonic flowmeters that base their operation on the reflection of waves.It concerns the volume flow-rate measurement of a liquid dominant fluid with steady flow orflow varying only slowly with time
18、 in a completely filled closed conduit.Suggestions for improvement of this Standard are welcome. They should be addressed to theSecretary, ASME MFC Standards Committee, Two Park Avenue, New York, NY 10016-5990.This Standard was approved as an American National Standard on April 12, 2013.ivASME MFC C
19、OMMITTEEMeasurement of Fluid Flow in Closed Conduits(The following is the roster of the Committee at the time of approval of this Standard.)STANDARDS COMMITTEE OFFICERSR. J. DeBoom, ChairD. C. Wyatt, Vice ChairC. J. Gomez, SecretarySTANDARDS COMMITTEE PERSONNELC. J. Blechinger, Honorary Member, Cons
20、ultantR. M. Bough, Rolls-Royce Corp.M. S. Carter, Flow Systems, Inc.R. J. DeBoom, ConsultantD. Faber, Contributing Member, Badger Meter, Inc.C. J. Gomez, The American Society of Mechanical EngineersF. D. Goodson, Emerson Process Management Daniel DivisionZ. D. Husain, Chevron Corp.C. G. Langford, Ho
21、norary Member, ConsultantW. M. Mattar, Invensys/Foxboro Co.SUBCOMMITTEE 5: ULTRASONIC FLOWMETERSR. J. DeBoom, Chair, ConsultantR. Schaefer, Vice Chair, Siemens Industry, Inc.X. S. Ao, GED. R. Augenstein, CameronP. G. Espina, Flowbusters, Inc.R. H. Fritz, Regency Gas ServiceB. Funck, Flexim Labs, LLC
22、F. D. Goodson, Emerson Process Management Daniel DivisionH. E. Hall, Dow Chemical Canada ULCvG. E. Mattingly, ConsultantR. W. Miller, Honorary Member, R. W. Miller however, they shouldnot contain proprietary names or information.Requests that are not in this format may be rewritten in the appropriat
23、e format by the Committeeprior to being answered, which may inadvertently change the intent of the original request.ASME procedures provide for reconsideration of any interpretation when or if additionalinformation that might affect an interpretation is available. Further, persons aggrieved by anint
24、erpretation may appeal to the cognizant ASME Committee or Subcommittee. ASME does not“approve,” “certify,” “rate,” or “endorse” any item, construction, proprietary device, or activity.Attending Committee Meetings. The MFC Standards Committee regularly holds meetings thatare open to the public. Perso
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