1、ErratumtoASME PTC 6-2004Steam TurbinesOn page 13, Table 3-1, first entry under second column is corrected by erratum to read “H110063.0%of the absolute pressure.” See revised table on the overleaf.THE AMERICAN SOCIETY OF MECHANICAL ENGINEERSThree Park Avenue, New York, NY 10016-5990February 2006C280
2、4ECopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Table 3-1 Permissible Deviation of VariablesPermissible Deviation for the Averageof the Test Conditions from Design or Permissible Fluctuations Du
3、ring AnyVariable Rated Conditions Note (1) Test Run Note (2)Initial steam pressure H110063.0% of the absolute pressure H110060.25% of the absolute pressure or 5.0psi (34.5 kPa), whichever is largerInitial and reheat steam temperature H1100615F (8K) when superheat is 2750F H110064F (2K) when superhea
4、t is 2750F(1530K); H1100630F (16K) when super- (1530K); H110067F (4K) when superheatheat is in excess of 50F (30K) is in excess of 50F (30K)Initial steam quality H110060.5 percentage points of quality for H110060.1 percentage points of quality for turbines with wet throttle steam turbines with wet t
5、hrottle steamPrimary flow Not specified Refer to para. 4-10.1Secondary flows H110065.0% H11003 (primary flow)/(secondary flow) Same as (d) H11003 (primary flow)/(secondaryflow)Pressure drop through fossil unit reheater H1100650.0%Extraction pressures H110065.0%Extraction flows Note (3) H110065.0%Tem
6、perature of feed water leaving final H1100610F (6K)heaterExhaust pressure Note (4) H110060.05 psi (0.34 kPa) or H110062.5% of the ab- H110060.02 psi (0.14 kPa) or H110061.0% of thesolute pressure, whichever is larger absolute pressure, whichever is largerLoad Refer to para. 3-13.5 H110060.25%Voltage
7、 H110065.0%Power factor Not specified H110061.0%Speed H110065.0% H110060.25%Aggregate isentropic enthalpy drop of H1100610.0%anyone of the sections of an automatic-extraction turbineNOTES:(1) In any event, the manufacturers allowable variations in pressure temperature and speed are not to be exceede
8、d, unless specificallyagreed to before the test.(2) Fluctuations would be indicated by scatter in the data (refer to para. 3-9.2).(3) When steam is extracted for feedwater heaters, the extraction pressures (which are fixed by the turbine design and flow conditions) maydeviate from expected values by
9、 a few percent. This normally has a negligible effect upon the overall performance. It shall be ascertainedthat such deviations that do exist are not due to malfunctioning of feedwater heaters. If large deviations persist, agreement must bereached as to the course to be followed.(4) If it is not pra
10、cticable to obtain design or rated exhaust pressure, the test may be conducted by agreement at another exhaust pressure,and either party may require that the exhaust pressure correction curve be verified by test.Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo re
11、production or networking permitted without license from IHS-,-,-Performance Test CodesAN AMERICAN NATIONAL STANDARDSteam TurbinesASME PTC 6-2004(Revision of ASME PTC 6-1996)Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted with
12、out license from IHS-,-,-ASME PTC 6-2004(Revision of ASME PTC 6-1996)Steam TurbinesPerformance Test CodesThree Park Avenue New York, NY 10016AN AMERICAN NATIONAL STANDARDCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without
13、 license from IHS-,-,-Date of Issuance: October 31, 2005This Code will be revised when the Society approves the issuance of a new edition. There will be noaddenda issued to ASME PTC 6-2004.ASME issues written replies to inquiries as code cases and interpretations of technical aspects of thisdocument
14、. Code cases and interpretations are published on the ASME Web site under the CommitteePages at http:/www.asme.org/codes/ as they are issued.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the
15、 criteria for American National Stan-dards. The Standards Committee that approved the code or standard was balanced to assure that individuals from com-petent and concerned interests have had an opportunity to participate. The proposed code or standard was made avail-able for public review and comme
16、nt that provides an opportunity for additional 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 p
17、atent rights asserted in connection with any itemsmentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringe-ment of any applicable letters patent, nor assumes any such liability. Users of a code or standard are expressly advisedthat deter
18、mination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely theirown responsibility.Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as gov-ernment or industry endorsement of this code or
19、 standard.ASME accepts responsibility for only those 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 retrieva
20、l system or otherwise, without the prior written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue, New York, NY 10016-5990Copyright 2005 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright ASME International Provided by
21、 IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-CONTENTSNotice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiForeword . . . . . . . . . . . . . . .
22、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiiCommitee Roster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xCorrespondence With the PTC 6 Committee . . . . . . . . . . . .
23、. . . . . . . . . . . . . . . . . . . . . . . . xiiSection 1 Object and Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1 Object . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24、. . . . . . 11-2 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-3 Full-Scale and Alternative Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-4 Conformance to Code . . . . .
25、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-5 Additional Requirements and References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Section 2 Definitions and Description of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26、. . . . . . . 32-1 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32-2 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-3 Subscripts . . . . . .
27、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42-4 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62-5 Table for Conversion to SI Units . . . . . . . . . . . . . .
28、. . . . . . . . . . . . . . . . . . . . . . . . . . 6Section 3 Guiding Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73-1 Planning for Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29、 . . . 73-2 Items on Which Agreement Shall be Reached . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73-3 Timing of Acceptance Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83-4 General Test Requirements . . . . . . . . . . . . . . . . .
30、. . . . . . . . . . . . . . . . . . . . . . . . . . . 93-5 Isolation of the Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103-6 Location of Turbine Valve Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
31、-7 Number of Test Runs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123-8 Testing Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123-9 Frequency of Observations and Duration of Test
32、 Runs . . . . . . . . . . . . . . . . . . . . . . . 143-10 Calibration of Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153-11 Steam Pressure and Temperature Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . 173-12 Corrections
33、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .173-13 Methods of Comparing Test Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173-14 Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . .
34、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19Section 4 Instruments and Methods of Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204-1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35、. . 204-2 Measurement of Mechanical Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214-3 Measurement of Feedwater Pump Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224-4 Measurement of Electrical Power . . . . . . . . . . . . . . . . . . .
36、 . . . . . . . . . . . . . . . . . . . . 244-5 A-C Generator Test Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274-6 D-C Generator Test Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284-7 Calibration of Elec
37、trical Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294-8 Primary Flow Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294-9 Installation of Flow Section . . . . . . . . . . . . . . . . . . . . . . . . . . . .
38、 . . . . . . . . . . . . . . . . 384-10 Flow Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 454-11 Other Flow-Measuring Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 454-12 Measurement of
39、 Steam Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 454-13 Measurement of Water Flow Using Tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 454-14 Differential-Pressure Measurements . . . . . . . . . . . . . . . . . . . . . . . . . .
40、 . . . . . . . . . . . 464-15 Enthalpy-Drop Method for Steam-Flow Determination . . . . . . . . . . . . . . . . . . . . . . 48iiiCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-4-16 Additional Flo
41、w Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494-17 Measurement of Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 514-18 Measurement of Temperature . . . . . . . . . . . . . . . . . . . . . . .
42、. . . . . . . . . . . . . . . . . . . 574-19 Methods of Determining Steam Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 594-20 Measurement of Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 644-21 Measurement of Time
43、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 644-22 Measurement of Water Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64Section 5 Computation of Results . . . . . . . . . . . . . . . . . . . . . . . . .
44、 . . . . . . . . . . . . . . . . . . . . 655-1 Deviations From Specified Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 655-2 Test Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 655-3 Test Data Reduc
45、tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 655-4 Throttle-Steam Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 665-5 Capability . . . . . . . . . . . . . . . . . . . . . . . . . .
46、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .665-6 Steam Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 665-7 Heat Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
47、. . . . . . . . . . . . .665-8 Correction of the Test Results to Specified Conditions . . . . . . . . . . . . . . . . . . . . . . . 675-9 Calculation of Turbine Exhaust Steam Enthalpy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 675-10 Turbine Efficiency and Effectiveness . . . . . . . .
48、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 705-11 Calculation of Group 1 Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 715-12 Calculation of Group 2 Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 715-13
49、 Average Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72Section 6 Report of Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 736-1 Turbine Generator Acceptance Test Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73Section 7 Required Number of Reading
