GB/T 42535-2023 English PDF

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GB/T 42535-2023: Periodic inspection of boilers
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 42535-2023	739	Add to Cart	6 days	Periodic inspection of boilers	Valid

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Basic data

Standard ID: GB/T 42535-2023 (GB/T42535-2023)
Description (Translated English): Periodic inspection of boilers
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J98
Classification of International Standard: 27.060.30
Word Count Estimation: 36,312
Date of Issue: 2023-05-23
Date of Implementation: 2023-05-23
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42535-2023: Periodic inspection of boilers

---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 27:060:30 CCSJ98 National Standards of People's Republic of China Boiler Periodic Inspection Released on 2023-05-23 2023-05-23 Implementation State Administration for Market Regulation Released by the National Standardization Management Committee

table of contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 General requirements 1 5 External Inspection 5 6 Internal Inspection 11 7 water (proof) pressure test 19 Appendix A (Normative) Boiler Internal (External) Inspection Conclusion Report 23 Appendix B (informative) Boiler periodic inspection contact list 25 Appendix C (Informative) Notice of Boiler Periodic Inspection Opinion 26 Appendix D (Informative) Defect Handling of Boilers Other Than Power Station Boilers 27 Reference 28

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: Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed and managed by the National Standardization Technical Committee of Boilers and Pressure Vessels (SAC/TC262): This document is drafted by: China Special Equipment Inspection and Research Institute, Sichuan Special Equipment Inspection and Research Institute, Shandong Special Equipment Inspection and Research Institute Research Institute Co:, Ltd:, Beijing Special Equipment Testing Center, National Energy Group Guohua (Beijing) Electric Power Research Institute Co:, Ltd:, Hangzhou Special Equipment Testing Research Institute, Guangdong Zhuhai Jinwan Power Generation Co:, Ltd:, Guangdong Special Equipment Testing Research Institute Dongguan Testing Institute: The main drafters of this document: Chen Xinzhong, Qian Gong, Li Jun, Qian Linfeng, Zou Yiping, Tang Jie, Li Ning, Liang Jun, Sheng Shuipi, Cheng Zhihong, He Jingwei, Guo Jingqian: Boiler Periodic Inspection

1 Scope

This document specifies the basic requirements for periodic inspection of in-service boilers [including waste (waste) heat boilers manufactured according to boiler design], including general The power pipeline connected to the boiler can refer to the pipeline requirements within the scope of the boiler Periodic inspections are carried out together with the boiler: This document is applicable to boilers in the following scope, and other boilers can be implemented as a reference: a) Pressure-bearing steam boilers with design normal water level water volume greater than or equal to 30L and rated steam pressure greater than or equal to 0:1MPa (Except for boilers with design normal water level water volume less than or equal to 50L and rated steam pressure less than or equal to 0:8MPa); b) Pressurized hot water boilers with rated outlet pressure greater than or equal to 0:1MPa and rated thermal power greater than or equal to 0:1MW (rated Except for boilers whose outlet water pressure is less than or equal to 0:4MPa and whose rated outlet water temperature is less than 95°C); c) Organic heat carrier boilers with rated thermal power greater than or equal to 0:1MW: Note: All pressures mentioned in this document are gauge pressures:

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: GB/T 2900:48 Electrical terminology boiler DL/T 438 Thermal Power Plant Metal Technical Supervision Regulations DL/T 869 Thermal Power Plant Welding Technical Regulations NB/T 47013 (all parts) Non-destructive testing of pressure equipment

3 Terms and Definitions

The following terms and definitions defined in GB/T 2900:48 apply to this document: 3:1 The main connection pipeline internalpipe The connections between the heating surfaces and headers within the scope of the boiler body and the boiler drum [steam-water (startup) separator], water storage tank and desuperheater pipeline:

4 General requirements

4:1 Scope of boiler periodic inspection 4:1:1 The scope of regular boiler inspection generally includes the boiler body, piping within the scope of the boiler, boiler safety accessories and instruments, boiler auxiliary equipment and system: 4:1:2 The pipes within the scope of power plant boilers shall be defined according to the following principles: a) The main water supply pipeline refers to the pipeline from the boiler feedwater pump outlet check valve (not including the check valve) to the inlet header of the economizer, and the first ......

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