1、BRITISH STANDARD BS ISO 19860:2005 Gas turbines Data acquisition and trend monitoring system requirements for gas turbine installations ICS 27.040 BS ISO 19860:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 19 April 2005 BSI 19 April 20
2、05 ISBN 0 580 45854 7 National foreword This British Standard reproduces verbatim ISO 19860:2005 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee MCE/16, Gas turbines, which has the responsibility to: A list of organizations
3、represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by
4、 using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immuni
5、ty from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them i
6、n the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to vi, pages 1 to 28, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since
7、publication Amd. No. Date Comments Reference number ISO 19860:2005(E) OSI 5002INTERNATIONAL STANDARD ISO 19860 First edition 2005-03-15 Gas turbines Data acquisition and trend monitoring system requirements for gas turbine installations Turbines gaz Exigences relatives aux systmes dacquisition des d
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13、i ISO 5002 Allr ithgsr esedevrBSISO19860:2005IS:06891 O5002(E) I SO 5002 All irthgs ersedevr iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Normative references . 1 3 Terms, abbreviated terms and definitions 1 4 Monitoring systems and their characteristics . 3 4.1 General features 3 4.2 Dat
14、a-acquisition systems. 3 4.3 Trend-monitoring systems. 4 4.4 Comparison of the systems. 6 5 Detailed examination of trend-monitoring systems 7 5.1 The tasks of a trend-monitoring system. 7 5.2 Performance-monitoring systems. 7 5.3 Combustion- and emission-monitoring systems 9 5.4 Mechanical- and vib
15、ration-monitoring systems 10 5.5 Measured parameters . 11 5.6 Scaling and validation 14 6 Example of a trend-monitoring system 15 Annex A (informative) Status and further development of trend-monitoring systems. 16 Annex B (informative) Diagnostic systems 21 Annex C (informative) Flow chart of the t
16、rend-monitoring system. 23 Bibliography . 28 BSISO19860:2005IS:06891 O5002(E) iv I SO 5002 All irthgs ersedevrForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is
17、 normally 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
18、 in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to pr
19、epare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. ISO 19860 was prepared by Technical Commit
20、tee ISO/TC 192, Gas turbines. BSISO19860:2005IS:06891 O5002(E) I SO 5002 All irthgs ersedevr vIntroduction The International Organization for Standardization (ISO) draws attention to the fact that it is claimed that compliance with this document may involve the use of a patent concerning data proces
21、sing systems and diagnostic systems for technical/power plants. The specific patents declared include the following: EP 0 643 345: Data processing device for the monitoring of the operating states of a technical plant US 5,625,574 Method and data processing system for monitoring operating states of
22、a technical plant EP 0 667 013 Diagnostic system for a plant US 5,734,567 Diagnosis system for a plant KR 299811 Diagnostic system for a plant IN 179026 Diagnosis system for a power plant The ISO takes no position concerning the evidence, validity and scope of this patent right. The holder of this p
23、atent right has assured the ISO that he is willing to negotiate licences under reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement of the holder of this patent right is registered with the ISO. Information may be obtained from:
24、Siemens AG (CT IP PG and CT L analyse the actual condition, enabling the preparation of maintenance in advance and only if the need arises. Trends during recent years show that in the foreseeable future no gas turbine is likely to be sold without a TMS. There is also a tendency to integrate the TMS
25、closely with the control systems of the gas turbines. BSISO19860:2005IS:06891 O5002(E) vi I SO 5002 All irthgs ersedevrOne reason for this lies in the use of the operating data available in the control system and needed for control as well as for the TMS. On the other hand, the control system can re
26、spond rapidly to critical situations detected by TMS. Therefore the direct connection of both systems offers the best solution. Many independent, as well as integrated, systems are commercially available but they are based on different philosophies. Correspondingly, their performances can differ. Ce
27、rtain terms are often used with conflicting meanings and can mislead expectations. TMS offers important benefits in the following areas: minimize fuel consumption; optimize maintenance costs in line with actual requirements (e.g. availability); minimize impact on the environment; predict possible fa
28、ilure and minimize subsequent damage and/or loss; improve reliability and availability. Use of the same system will allow the manufacturer to determine the actual (not the theoretical) thermodynamic data; data and performance verification; determine gas-turbine ageing; improve service interval sched
29、uling; optimize compressor cleaning. Together, both operator and manufacturer will be able to interpret the short- and long-term trends established; perform a status analysis; identify and potentially reduce failures; which in turn will enable future automated diagnostic systems to be extended still
30、 further. As more and more new systems emerge, it is convenient to classify the technical terms and to define them. The intention is to set up certain guidelines on the subject of trend-monitoring systems to provide a basis for comparison of the various systems, their features, their performances an
31、d to help in the process of decision- making. BSISO19860:2005INTENRATIONAL TSANDADR IS:06891 O5002(E)I SO 5002 All irthgs ersedevr 1Gas turbines Data acquisition and trend monitoring system requirements for gas turbine installations 1 Scope This International Standard applies to data-acquisition and
32、 trend-monitoring systems for gas turbine installations and associated systems. It classifies and defines monitoring systems and their technical terms. It establishes a system for conversion and validation of measured quantities in order to enable a comparison of the various systems, their features
33、and their performances. 2 Normative references The following referenced documents are indispensable for the application 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. IS
34、O 2314:1989, Gas turbines Acceptance tests ISO 3977-2:1997, Gas turbines Procurement Part 2: Standard reference conditions and ratings ISO 13373-1:2002, Condition monitoring and diagnostics of machines Vibration condition monitoring Part 1: General procedures 3 Terms, abbreviated terms and definitio
35、ns For the purposes of this document, the following definitions apply. NOTE “Gas turbine” as used in this International Standard means the gas turbine and its associated systems. 3.1 combustion-monitoring system CMS equipment to acquire operating data and allow a judgement on the quality of the comb
36、ustion process 3.2 data acquisition system DA equipment to collect and store a selection of data enabling a description of the condition of the gas turbine engine and its associated systems 3.3 diagnosis system DS equipment to determine the condition of the gas turbine installation using information
37、 acquired by DA and TMS NOTE In addition, the DS can display the reason for the actual situation. In an advanced version, it can offer suggestions or guidance on actions required. BSISO19860:2005IS:06891 O5002(E) 2 I SO 5002 All irthgs ersedevr3.4 emission-monitoring system EMS equipment to store da
38、ta, indicating the output of emissions that are produced by the combustion process of the gas-turbine installation 3.5 maintenance-on-condition MOC procedure whereby maintenance work is done only if requested by the monitoring system 3.6 mechanical-monitoring system MMS equipment to acquire data on
39、the condition of the gas turbine installation that are of importance for the lifetime of the mechanical design 3.7 monitoring system MS equipment used in the same manner as for surveillance NOTE This is considered as the generic term for all systems that perform a surveillance of the gas turbine and
40、 installations. 3.8 performance-monitoring system PMS equipment to take data and display the performance of the gas turbine NOTE The parameters involved are essentially power, efficiency, exhaust-gas temperature and exhaust-gas flow and can include engine-component-condition assessment. 3.9 trend ap
41、proximation of an x-y correlation within an acceptable correlation coefficient on the basis of data that are eventually validated and normalized NOTE The variable x is most often “time”, and trends are usually evaluated as functions of operating time or operating cycles. 3.10 trend-monitoring system
42、 TMS equipment to acquire operating data describing the condition of the gas-turbine installation that are used for the computation of short-term and long-term trends for selected parameters 3.11 validation detection and elimination and/or replacement of wrong values among the measured data 3.12 vib
43、ration-monitoring system VMS equipment for monitoring the mechanical vibrations of the rotor(s) and the casing(s) of a gas turbine installation BSISO19860:2005IS:06891 O5002(E) I SO 5002 All irthgs ersedevr 34 Monitoring systems and their characteristics 4.1 General features In applications where as
44、pects of safety are extremely important (i.e. for aircraft engines), the analysis of the condition of complex systems has already attained a high level. The positive influence on the maintenance effort that accompanies the introduction of monitoring systems (MSs), as well as the possibility of preve
45、nting failures, more and more raises the interest in applying such systems to large power plants where the safety requirements are less stringent. The economic performance of a plant can be improved by such monitoring systems. Projects carried out in recent years show trends in the operation of gas
46、turbines that predict the need for the application of such a monitoring system. Furthermore, it can be observed that the values measured for the MSs are mostly those already being acquired by the available control system. To an increasing extent, MSs are combined with the control system of the gas t
47、urbine and the governing system leading an entire complex. MSs are considered as an integral part operating in the background. Integration of the monitoring system and the control system has both advantages and disadvantages. a) Joining control and monitoring systems is advantageous because 1) the c
48、ontrol system already contributes essential information on the condition of the cycle; 2) the MS can use the control system to execute actions required in the process; 3) the distributed systems and/or remote systems are becoming more popular. b) The disadvantages include 1) the system design and va
49、lidation become much more complicated at the development phase; 2) the possibility of introducing unexpected error to another system might be higher at a later modification phase. There are already many independent, as well as integrated, systems commercially available, which differ in design concepts, operating philosophies and performance. As new systems emerge continuously, it is convenient to classify and defin
