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GB/T 5578-2024: Fixed power plant steam turbine specifications
Status: Valid GB/T 5578: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 5578-2024 | English | 1239 |
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8 days [Need to translate]
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Fixed power plant steam turbine specifications
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GB/T 5578-2024
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| GB/T 5578-2007 | English | 1359 |
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Fixed power plant turbine specifications
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GB/T 5578-2007
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| GB/T 5578-1985 | English | 359 |
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Specification for stationary steam turbines driving generator
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GB/T 5578-1985
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PDF similar to GB/T 5578-2024
Basic data | Standard ID | GB/T 5578-2024 (GB/T5578-2024) | | Description (Translated English) | Fixed power plant steam turbine specifications | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K54 | | Classification of International Standard | 27.040 | | Word Count Estimation | 62,680 | | Date of Issue | 2024-05-28 | | Date of Implementation | 2024-12-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 5578-2024: Fixed power plant steam turbine specifications---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 27:040
CCSK54
National Standards of People's Republic of China
Replace GB/T 5578-2007
Specification for steam turbines for stationary power generation
(IEC 60045-1:2020, Steam turbines-Part 1: Specifications, MOD)
Released on 2024-05-28
2024-12-01 implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction VI
1 Scope 1
2 Normative references 1
3 Terms and Definitions 2
4 Guaranteed value 8
5 Product Safety 9
6 Operation and maintenance 11
7 Components 14
8 Foundations and buildings16
9 Extraction and exhaust steam 16
10 Steam Turbine Auxiliary System19
11 Automatic Control21
12 Other protective devices 29
13 Vibration 30
14 Noise 30
15 Test 30
16 Delivery and installation 31
17 Design information to be provided by the buyer 31
18 Design information provided by the supplier 36
Appendix A (Informative) Structure Number Comparison List 38
Appendix B (Informative) List of Technical Differences and Their Causes 45
Appendix C (Informative) The degree of consistency between Chinese documents and international documents in normative reference documents 47
Appendix D (Informative) Welding of steam turbine fixed parts 50
References 53
Figure 1 Turbine interface 4
Table 1 Environmental Level 21
Table 2 Controller inequality and dead zone 24
Table 3 Nonlinearity and stability 24
Table A:1 Comparison of structure numbers between this document and IEC 60045-1:2020 38
Table B:1 Technical differences between this document and IEC 60045-1:2020 and their causes 45
Table C:1 The consistency between Chinese documents and international documents in normative reference documents 47
Table D:1 Correlation between functions and their foreseeable potential risks and manufacturer's quality requirements 50
Table D:2 Correlation between structural integrity and quality level 51
Table D:3 Welding procedure qualification of welding and process methods 51
Foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents"
Drafting:
This document replaces GB/T 5578-2007 "Stationary Power Generation Steam Turbine Specifications": Compared with GB/T 5578-2007, except for the structural adjustment
In addition to the integration and editorial changes, the main technical changes are as follows:
a) Deleted some terms and definitions (see Chapter 3);
b) Added “Product Safety” requirements (see Chapter 5);
c) Added the requirement that the buyer should list in detail the load changes during the entire turbine design life [see 6:1:3d)];
d) The method for determining the use of turbine bypass system has been changed (see 6:1:5, 6:1:5 of the:2007 edition);
e) The exhaust absolute pressure requirement for back-pressure steam turbines has been changed (see 6:2:3, 6:2:3 of the:2007 edition);
f) The speed requirements have been changed (see 6:2:5, 6:2:5 of the:2007 edition);
g) Added the requirement that the buyer should provide boundary conditions for abnormal operation of the turbine (see 6:3:3);
h) Added the provision that “materials not specified in domestic or international standards may be agreed upon by the buyer and seller” (see 7:1);
i) The requirements for dynamic balancing of rotors after completion have been changed (see 7:4:1, 7:4:1 of the:2007 edition), and the methods and standards for dynamic balancing have been added:
(see 7:4:1);
j) The critical speed provisions have been changed (see 7:4:2, 7:4:2 of the:2007 edition), and the critical speed calculation requirements have been added (see 7:4:2);
k) Changed the requirements for overspeed test speed (see 7:4:3, 7:4:3 of the:2007 edition);
l) Added that the requirements for electrical faults in regional grid codes should be specified by the purchaser together with appropriate information on grid performance
Requirements (see 7:4:4);
m) Added the provisions on the division of mechanical and torsional characteristics of the shaft system (see 7:4:5);
n) The provisions on steam screens for reheat steam turbines have been deleted (see 7:5 of the:2007 edition);
o) The requirements for the surface temperature of the insulation material have been changed (see 7:8, 7:8 of the:2007 edition);
p) Added welding requirements (see 7:9);
q) Added the requirement that the purchaser is responsible for determining the preferred building construction specifications (see 8:1);
r) The following clause has been deleted: The foundation designer should ensure that the foundation designed will not exceed the specified value due to the deflection, natural frequency and other characteristics of the foundation:
Provisions on adverse effects on the operation of the unit within the speed range (see 8:2 of the:2007 edition);
s) Added the requirements for coupling calculation of the damping system of the steam turbine unit and its foundation (see 8:2);
t) The requirement that the purchaser should ensure that the natural frequency of the foundation vibration does not coincide with any low-frequency multiple of the unit's operating speed to form resonance has been deleted:
(See 8:4 of the:2007 edition);
u) Added the requirement that the buyer provide all documents required for basic design (see 8:4);
v) The drive of the feedwater pump has been deleted (see Chapter 9 of the:2007 edition);
w) Added extraction and exhaust steam (see Chapter 9);
x) Changed the description of turbine feedwater reheating (see 9:6:2 and 17:5, Chapter 19 of the:2007 edition);
y) Added general rules for steam turbine auxiliary systems (see 10:1);
z) Changed the oil return temperature requirement for main bearing operation [see 10:2:12, 10:1l of the:2007 edition)];
aa) Added description on how to provide safety valves installed on steam pipes and who specifies their parameters (see 10:4);
ab) Added the requirement that external steam pipes should have sufficient drainage capacity (see 10:5);
ac) Integrate regulation, instrumentation, and protection systems into automatic control (see Chapter 11, Chapters 5, 11, and 12 of the:2007 edition)
chapter);
ad) Added general rules and regulations for automatic control (see 11:1 and 11:2);
ae) Added general rules for steam turbine control systems (see 11:3:1);
af) Changed the functional requirements of the regulation system (see 11:3:2, 5:1 of the:2007 edition);
ag) Deleted the droop and sluggish rate characteristics of mechanical regulators (see Table 1 of the:2007 edition);
ah) Added the operating characteristics of the electro-hydraulic control system (see 11:3:5);
ai) Changed the requirements for valve testing (see 11:3:6, 5:4 of the:2007 edition);
aj) Added requirements for steam turbine control system equipment (see 11:3:7);
ak) Added requirements for auxiliary system control (see 11:3:8);
a1) Added requirements for monitoring functions and/or information notification of steam turbine control systems (see 11:3:9);
am) Added general requirements for turbine protection system [see 11:4:1:1d)~11:4:1:1f)];
an) The scope of the automatic protection criteria has been changed (see 11:4:1:2, 12:2:4 of the:2007 edition);
ao) The range of alarm values has been changed (see 11:4:1:3, 12:3 of the:2007 edition);
ap) Deleted the provision that the overspeed protection system of small-power steam turbines should be able to be reset without stopping the machine (see 5:5:4 of the:2007 edition);
aq) Deleted the rule that the overspeed protection device of a large-power steam turbine should be able to reset when the turbine speed drops to not less than the rated speed:
(see 5:5:5 of the:2007 edition);
ar) Added the provision that the overspeed protection system with internal test circuit design does not require a real overspeed test [see
11:4:1:4f)];
as) Added design requirements for protection systems (see 11:4:1:5);
at) The range of standard instruments has been changed (see 11:5:2, 11:2 of the:2007 edition), and the auxiliary steam pressure of the shaft seal system and
Auxiliary steam temperature of the shaft seal system (see 11:5:2);
au) The calculation formulas for vibration velocity and peak-to-peak vibration displacement under synchronous vibration (see 13:1 of the:2007 edition) have been deleted;
av) Changed the vibration technical requirements for measuring on the bearing seat (see 13:2, 13:2 of the:2007 edition);
aw) Changed the technical requirements for vibration measured on the shaft (see 13:3, 13:3 of the:2007 edition), and added the requirements for the location and point of measurement:
(see 13:3);
ax) The technical requirements for the hydraulic test have been changed (see 15:2, 15:2 of the:2007 edition), and the requirements for the hydraulic test pressure have been deleted (see
15:2 of the:2007 edition) adds that the hydraulic pressure test should be carried out in accordance with the supplier's standards (see 15:2);
ay) Added provisions for trial operation (see 16:2);
az) Added the characteristics of steam turbine and auxiliary equipment to the design information to be provided by the buyer [see 17:2g) and 17:2h)];
ba) Added conditions for condensers and coolers [see 17:4e)];
bb) Added special requirements for paint in delivery site conditions [see 17:9c)];
bc) Added information that the buyer of the automation system should provide (see 17:11);
bd) Added requirements for the buyer to provide documents, quality monitoring, and design information for risk assessment (see 17:12 to 17:14);
be) Added the requirement that the supplier should provide information on the mass flow transient in the valve when the supercritical steam turbine trips [see 18a)], added
The supplier shall provide the feedwater heater system diagram in its scope of supply [see 18c)], and the power required for the operation of the auxiliary system is added:
Requirements for power supply, compressed air and cooling water [see 18g)], and instrumentation and control (I
Related information [see 18i) and 18j)];
bf) Deleted the description of the electronic part of the electric-hydraulic control system and overspeed protection device used on steam turbines (see Appendix:2007 Edition):
Record A):
This document is modified to adopt IEC 60045-1:2020 "Steam turbines - Part 1: Specifications":
Compared with IEC 60045-1:2020, this document has many structural adjustments: A comparison of the structural number changes between the two documents
See Appendix A for the table:
This document has many technical differences compared with IEC 60045-1:2020:
A list of these technical differences and their reasons is given in Appendix B:
The following editorial changes were made to this document:
--- Change the name of the standard to "Specifications for Steam Turbines for Stationary Power Generation";
--- Added the note for the term "wet steam turbine" (see 3:1:2);
--- Added the note for the term "back pressure turbine" (see 3:1:3);
--- Added the note for the term "condensing steam turbine" (see 3:1:4);
--- Added Note 1 to the term "extraction steam turbine" (see 3:1:5);
--- Added the note for the term "combined cycle steam turbine" (see 3:1:6);
--- Added the note for the term "boundary parameter" (see 3:3:2);
--- Added the note for the term "steam parameters" (see 3:3:3);
--- Added the note for the term "heat rate" (see 3:7:1);
--- Added a note to the term "lifetime" (see 3:11:1);
--- Added the note for the term "speed inequality" (see 3:12:2);
--- Deleted the note on the term "local speed inequality" (see 3:12:3);
--- Added notes on auxiliary system control (11:3:8);
--- Replaced IEC 61511 with informative reference GB/T 21109 (all parts) (see 5:3, 11:4:1:1, 11:4:1:5);
--- Replaced ASMETDP-1 with the informative reference DL/T 834 (see 10:5);
--- Replaced IEC 61000-6-2 with the informative reference GB/T 17799:2 (see 11:2:2);
--- Replaced IEC 61000-6-4 with the informative reference GB/T 17799:4 (see 11:2:2);
--- Replaced IEC 61511-1 with the informative reference GB/T 21109:1 (see 11:2:2);
--- Replaced ISO /IEC 15408 with informative reference GB/T 18336 (all parts) (see 11:2:3):
Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents:
This document was proposed by the China Electrical Equipment Industry Association:
This document is under the jurisdiction of the National Technical Committee for Standardization of Steam Turbines (SAC/TC172):
This document was drafted by: Shanghai Electric Power Plant Equipment Co:, Ltd: Shanghai Steam Turbine Factory, Shanghai Power Generation Equipment Complete Set Design Institute Co:, Ltd:
The Company, Beijing Beizhong Steam Turbine and Electric Machine Co:, Ltd:, Dongfang Electric Corporation Dongfang Steam Turbine Co:, Ltd:, Nanjing Steam Turbine and Electric Machine (Group) Co:, Ltd:
Co:, Ltd:, Harbin Steam Turbine Works Co:, Ltd:, Hangzhou Steam Turbine Power Group Co:, Ltd:, China Yangtze Power Group Co:, Ltd:
Company, Qingdao Jieneng Steam Turbine Group Co:, Ltd:
The main drafters of this document are: Bao Jinhua, Yang Yu, Hao Zhenzhen, Wang Rong, Ma Fei, Zeng Hui, Zhou Xinkang, Ma Xin, Gao Zhanyu, Zhang Jing, Hu Xin,
Zhang Xue, Ma Xiaofei, Liao Xiaolin, Wang Kaituo, Sun Hongyun, Zhang Peijuan, Huang Qiang:
This document was first issued in 1985, revised for the first time in:2007, and this is the second revision:
Introduction
The last version of IEC 60045-1 Steam Turbines Part 1: Specifications was published in:1991: In daily practice, this standard is widely used in steam turbines:
With the rapid development of steam turbine technology in the past 30 years, higher-level steam turbines have been widely recognized:
With the widespread application of steam turbines in the fields of machinery, renewable energy and those requiring more flexible operation capabilities, the relevant technologies are more advanced and mature:
In 2020, IEC 60045-1:2020 Steam Turbine Part 1: Specification was officially released: This standard added product safety content and
The integration of content on regulation, control, instrumentation and protection in the first version paves the way for the digitalization of power plants:
GB/T 5578-2007 Specification for Steam Turbines for Stationary Power Generation was revised to adopt IEC 60045-1:1991, which has been issued and implemented for more than ten years:
With the release of the latest version of IEC 60045-1, it is necessary to revise and improve GB/T 5578 to eliminate the technical differences between the current version and the existing technology:
In order to constantly adapt to new changes in the field of steam turbines at home and abroad, and better promote trade, exchanges and technical cooperation:
Specification for steam turbines for stationary power generation
1 Scope
This document specifies the guaranteed values, control, operation and maintenance, and component requirements for steam turbine equipment for high-power stationary power generation:
This document applies to stationary steam turbines used to drive generators, and some provisions also apply to steam turbines for other purposes:
This shall apply to steam turbines of this type and small-power steam turbines:
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document:
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document:
GB/T 3836 (all parts) Explosive atmospheres [IEC 60079 (all parts)]
Note: The degree of consistency between GB/T 3836 (all parts) and IEC 60079 (all parts) is shown in Appendix C:
GB/T 5226:1 Electrical safety of machinery Electrical equipment of machinery Part 1: General technical requirements (GB/T 5226:1-2019,
IEC 60204-1:2016, IDT)
GB/T 6075:3 Mechanical vibration - Measurement and evaluation of vibration of machines on non-rotating parts - Part 3: Vibration of machines with rated power greater than 15 kW
Industrial machines with rated speeds between 120r/min and 15000r/min measured on site (GB/T 6075:3-2011,
ISO 10816-3:2009, IDT)
GB/T 7441 Measurement of spatial noise emitted by steam turbines and driven machinery
GB/T 8117 (all parts) Steam turbine thermal performance acceptance test procedures [IEC 60953 (all parts)]
Note: The degree of consistency between GB/T 8117 (all parts) and IEC 60953 (all parts) is shown in Appendix C:
GB/T 8117:3 Steam turbine thermal performance acceptance test procedures Part 3: Method C Thermal performance verification test for modified steam turbines
Test (GB T8117:3-2014, IEC 60953-3:2001, IDT)
GB/T 9239:1 Mechanical vibration steady-state (rigid) rotor balancing quality requirements Part 1: Specification and balance tolerance inspection
(GB/T 9239:1-2006, ISO 1940-1:2003, IDT)
GB/T 9239:12 Mechanical vibration rotor balancing Part 12: Balancing methods and tolerances for rotors with flexible characteristics
(GB/T 9239:12-2021, ISO 21940-12:2016, IDT)
GB/T 9239:14 Mechanical vibration rotor balancing Part 14: Procedure for evaluating balancing errors (GB/T 9239:14-
2017,ISO 21940-14:2012,IDT)
GB/T 9239:31 Mechanical vibration rotor balancing Part 31: Machine imbalance variability and imbalance sensitivity
(GB/T 9239:31-2023, ISO 21940-31:2013, IDT)
GB/T 11348:2 Mechanical vibration - Measurement and evaluation of vibration of machines on rotating shafts - Part 2: Power greater than 50 MW, rated
Working speed 1500r/min, 1800r/min, 3000r/min, 3600r/min Land-mounted steam turbines and generators
(GB/T 11348:2-2012, ISO 7919-2:2009, MOD)
GB/T 11348:3 Mechanical vibration - Measurement and evaluation of vibration of machines on rotating shafts - Part 3: Coupled industrial machines
(GB/T 11348:3-2011, ISO 7919-3:2009, IDT)
GB/T 14098 Measurement of airborne noise of gas turbines and gas turbine units Engineering method/simple method (GB/T 14098-
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