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GB/T 30580-2022: The technical guide for the life assessment of main pressure parts of power plant boiler
Status: Valid GB/T 30580: Evolution and historical versions
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Basic data | Standard ID | GB/T 30580-2022 (GB/T30580-2022) | | Description (Translated English) | The technical guide for the life assessment of main pressure parts of power plant boiler | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J98 | | Word Count Estimation | 29,230 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 30580-2022: The technical guide for the life assessment of main pressure parts of power plant boiler
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The technical guide for the life assessment of main pressure parts of power plant boiler
ICS 27.060.01
CCSJ98
National Standards of People's Republic of China
Replacing GB/T 30580-2014
Technical Guidelines for Life Evaluation of Main Pressure-bearing Components of Power Plant Boilers
Published on 2022-03-09
2022-10-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface I
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Abbreviations 2
5 Preparation before life assessment 2
6 Life Evaluation Conditions 3
7 Life Assessment Procedure 4
8 Life Evaluation Methods5
9 Lifetime Assessment Report 20
Appendix A (Informative) Main Damage Modes of Pressure-bearing Components of Power Plant Boilers 21
Appendix B (informative) k and m values of heat-resistant steel commonly used in power station boilers in different states22
Appendix C (informative) Low-cycle fatigue parameters of heat-resistant steel commonly used in utility boilers 25
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 of Standardization Documents"
drafted.
This document replaces GB/T 30580-2014 "Technical Guidelines for Life Evaluation of Main Pressure-bearing Components of Power Station Boilers", and GB/T 30580-
Compared with.2014, except for structural adjustment and editorial changes, the main technical changes are as follows.
--- Changed the normative references and replaced GB/T 9222 with GB/T 16507.4 (see Chapter 2, 5.3.4.1, 6.4, 8.2.3,
8.4.1.2, Chapter 2, 5.3.4.1, 6.6, 8.2.3, 8.4.1.2 of the.2014 edition);
--- Deleted the content of replacing general parts for life assessment (see 6.4 of the.2014 edition);
LM curve and parameters of austenitic heat-resistant steel (see 8.1.2.7, 8.1.2.8, 8.1.2.9);
---Added the LM curve and parameters of 07Cr18Ni11Nb/10Cr9Mo1VNbN (TP347H/T 91) dissimilar steel welded joints
(see 8.1.2.10);
--- Added the C-projection method for predicting creep life based on creep expansion (see 8.1.4).
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed and managed by the National Standardization Technical Committee for Boilers and Pressure Vessels (SAC/TC262).
This document is drafted by. China Special Equipment Inspection and Research Institute, Shanghai Power Generation Equipment Design and Research Institute Co., Ltd., Suzhou Thermal
Engineering Research Institute Co., Ltd., Shanghai Jiaotong University, Xi'an Thermal Engineering Research Institute Co., Ltd., National Energy Group New Energy Technology Research Institute Co., Ltd.
Division, Jiangsu Special Equipment Safety Supervision and Inspection Research Institute, Xi'an Jiaotong University.
The main drafters of this document. Qian Gong, Che Chang, Dou Wenyu, Shi Jinyuan, Zhao Yanfen, Li Yude, Cai Hui, Guo Yuanliang, Wang Yong, Ren Ai, Chen Xinzhong,
Li Liren, Liang Jun, Zhang Lu, Wang Xiaomei, Liang Guoan, Liao Xiaowei, Zhao Qinxin, and Wu Zhiying.
This document was first published in GB/T 30580-2014 in.2014, and this is the first revision.
Technical Guidelines for Life Evaluation of Main Pressure-bearing Components of Power Plant Boilers
1 Scope
This document specifies the contents of the life assessment of the main pressure-bearing components of the utility boiler, establishes the life assessment procedures, and describes the life assessment procedures.
method, which specifies the content of the life assessment report.
This document is applicable to the life assessment of pressure-bearing components of boilers in use in power plants. This document does not apply to the pressure-bearing part of the boiler of the power station with excessive defects
life assessment of parts.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
GB/T 2039 Test method for uniaxial tensile creep of metallic materials
GB/T 15248 Axial Equal Radial Low Cycle Fatigue Test Method for Metallic Materials
GB/T 16507.4 Water Tube Boiler Part 4.Strength Calculation of Compressed Components
ASMEBPVC-Ⅲ-1/NH-2021 Specification for Boiler and Pressure Vessels
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
fatigue fatigue
Under the action of cyclic stress or strain, a material or component gradually produces local cumulative damage at a certain point or points, and after a certain number of cycles
The phenomenon in which cracks are formed or continue to expand until complete fracture.
3.2
low-cycle fatigue
Under the action of local cyclic plastic strain, the number of cycles is generally less than 105 cycles of fatigue.
3.3
Creep
At a certain temperature, the phenomenon of slow plastic deformation of metal materials or mechanical parts under constant stress for a long time.
3.4
durablestrength
The maximum bearing stress at which a material remains without failure under specified creep rupture conditions (certain temperature and specified time).
3.5
corrosion
A chemical or electrochemical reaction between a material and its environment.
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