BS ISO 13373-7-2017 Condition monitoring and diagnostics of machines Vibration condition monitoring Diagnostic techniques for machine sets in hydraulic power generating and pump-st.pdf

1、Condition monitoring and diagnostics of machines Vibration condition monitoringPart 7: Diagnostic techniques for machine sets in hydraulic power generating and pump-storage plantsBS ISO 13373-7:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 ISO 2017Condition mo

2、nitoring and diagnostics of machines Vibration condition monitoring Part 7: Diagnostic techniques for machine sets in hydraulic power generating and pump-storage plantsSurveillance et diagnostic dtat des machines Surveillance des vibrations Partie 7: Techniques de diagnostic pour machines quipant le

3、s centrales hydro-lectriques et les stations de turbine-pompeINTERNATIONAL STANDARDISO13373-7First edition2017-08Reference numberISO 13373-7:2017(E)National forewordThis British Standard is the UK implementation of ISO 13373-7:2017.The UK participation in its preparation was entrusted to Technical C

4、ommittee GME/21/5, Mechanical vibration, shock and condition monitoring - Vibration of machines.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are respons

5、ible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 92537 5ICS 17.160Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Po

6、licy and Strategy Committee on 30 September 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS ISO 133737:2017 ISO 2017Condition monitoring and diagnostics of machines Vibration condition monitoring Part 7: Diagnostic techniques for machine sets in hydraulic powe

7、r generating and pump-storage plantsSurveillance et diagnostic dtat des machines Surveillance des vibrations Partie 7: Techniques de diagnostic pour machines quipant les centrales hydro-lectriques et les stations de turbine-pompeINTERNATIONAL STANDARDISO13373-7First edition2017-08Reference numberISO

8、 13373-7:2017(E)BS ISO 133737:2017ISO 13373-7:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electro

9、nic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier,

10、Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 133737:2017ISO 13373-7:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may b

11、e reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the re

12、quester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgISO 13373-7:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Hydropower vibration 15 Measuremen

13、ts . 25.1 Vibration measurements in general . 25.2 Instrumentation . 25.3 Measurement of machine operational parameters . 46 Initial analysis . 47 Specific analysis of hydropower units 48 Additional diagnostics 5Annex A (normative) Fault table for vibration analysis of hydropower units . 6Annex B (i

14、nformative) Vibration diagnostic process for faults in hydropower units .11Annex C (informative) Examples of vibration problems in hydropower units 13Bibliography .19 ISO 2017 All rights reserved iiiContents PageBS ISO 133737:2017ISO 13373-7:2017(E)ForewordISO (the International Organization for Sta

15、ndardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the righ

16、t to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures

17、used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rule

18、s of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights iden

19、tified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanati

20、on on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso

21、/ foreword .html.This document was prepared by Technical Committee ISO/TC 108, Mechanical vibration, shock and condition monitoring, Subcommittee SC 2, Measurement and evaluation of mechanical vibration and shock as applied to machines, vehicles and structures.A list of all the parts in the ISO 1337

22、3 series can be found on the ISO website.iv ISO 2017 All rights reservedBS ISO 133737:2017ISO 13373-7:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is n

23、ormally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part i

24、n the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular

25、the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility that some of the elements of this

26、document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www .i

27、so .org/ patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as info

28、rmation about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by Technical Committee ISO/TC 108, Mechanical vibration, shock and condition monitoring, Subcomm

29、ittee SC 2, Measurement and evaluation of mechanical vibration and shock as applied to machines, vehicles and structures.A list of all the parts in the ISO 13373 series can be found on the ISO website.iv ISO 2017 All rights reserved ISO 13373-7:2017(E)IntroductionThis document is a guideline for pro

30、cedures to be considered when carrying out vibration diagnostics of machine sets in hydraulic power generating and pump-storage plants, shortly named hydropower units. It is intended to be used by vibration practitioners, engineers and technicians, and it provides them with diagnostic tools. These t

31、ools include the use of diagnostic process tables and fault tables. The material contained herein presents the most basic, logical and intelligent steps that should be taken when diagnosing problems associated with these particular types of machines.Acceptable vibration values for hydropower units,

32、however, are contained in ISO 10816-5 (vibration of non-rotating parts) and ISO 7919-5 (vibration of rotating shafts), which are at present under revision and amalgamation to be published as ISO 20816-5.ISO 13373-1 presents the basic procedures for narrow-band signal analysis of vibration. It includ

33、es description of the types of transducers to be used, their ranges and their recommended locations on various types of machines, online and periodic vibration systems, and potential machinery problems.ISO 13373-2 leads to the diagnostics of machines. It includes descriptions of the signal condition

34、ing equipment that is required, time and frequency domain techniques, and the waveforms and signatures that represent the most common machinery operating phenomena or machinery faults that are encountered when performing vibration signature analysis.ISO 13373-3 provides some procedures to determine

35、the causes of vibration problems common to all types of rotating machines. It includes systematic approaches to characterize vibration effects, the diagnostic tools available, tools needed for particular applications and recommendations on how the tools are to be applied to different machine types a

36、nd components. However, this does not preclude the use of other diagnostic techniques.It should be noted that ISO 17359 indicates that diagnostics can be started as a succeeding activity after detection of an anomaly during monitoring, or executed synchronously with monitoring from the beginning.Thi

37、s document considers only the first case in which diagnostics is performed after an anomaly has been detected. Moreover, it focuses mainly on the use of process tables as diagnostic tools, as well as fault tables since it is felt that these are the tools that are most appropriate for use by practiti

38、oners, engineers and technicians in the field.When approaching a machinery problem that manifests itself as a high or erratic vibration signal, the diagnosis of the problem should be carried out in a well-thought-out systematic manner. ISO 13373-3 and this document achieve that purpose by providing

39、to the analyst guidance on the selection of the proper measuring tools, the analysis tools and their use, and the recommended step-by-step procedures for the diagnosis of problems associated with various types of machine sets in hydraulic power generating and pump-storage plants.The diagnostic proce

40、ss table methodology presents a structured procedure for a person in the field to diagnose a fault and find its cause. The step-by-step procedure is able to guide the practitioner in the vibration diagnostics of the machine anomaly in order to detect the probable root cause.The fault tables present

41、a list of the most common faults in machinery, as well as their manifestations in the vibration data. The tables assist with the identification of machinery faults.For some cases, it can be dangerous to start the machine again after a serious anomaly caused a trip. Then, the diagnosis to be performe

42、d may differ from the methods described in this document. ISO 2017 All rights reserved vBS ISO 133737:2017BS ISO 133737:2017Condition monitoring and diagnostics of machines Vibration condition monitoring Part 7: Diagnostic techniques for machine sets in hydraulic power generating and pump-storage pl

43、ants1 ScopeThis document gives guidelines for specific procedures to be considered when carrying out vibration diagnostics of various types of machine sets in hydraulic power generating and pump-storage plants (hydropower units). It is intended to be used by condition monitoring practitioners, engin

44、eers and technicians and provides a practical step-by-step vibration-based approach to fault diagnosis. In addition, it includes a number of examples for a range of machine and component types and their associated fault symptoms.2 Normative referencesThe following documents are referred to in the te

45、xt in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 2041, Mechanical vibration, shock and condi

46、tion monitoring VocabularyISO 13372, Condition monitoring and diagnostics of machines VocabularyISO 13373-1, Condition monitoring and diagnostics of machines Vibration condition monitoring Part 1: General proceduresISO 13373-2, Condition monitoring and diagnostics of machines Vibration condition mon

47、itoring Part 2: Processing, analysis and presentation of vibration dataISO 21940-2, Mechanical vibration Rotor balancing Part 2: Vocabulary3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 2041, ISO 13372 and ISO 21940-2 apply.ISO and IEC maintain termi

48、nological databases for use in standardization at the following addresses: IEC Electropedia: available at h t t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp4 Hydropower vibrationVibration measurements mainly consist of quantifying the oscillat

49、ion of the rotating shaft at the guide bearings relative to the bearing housing (shaft relative vibration) and the absolute vibration of the bearing housing itself (bearing housing vibration), which is representative for non-rotating parts.INTERNATIONAL STANDARD ISO 13373-7:2017(E) ISO 2017 All rights reserved 1BS ISO 133737:2017ISO 13373-7:2017(E)Unlike other heavy rotating equipment, such as gas turbines, compressors and pumps, hydropower units are rigid without flexible couplings between the co