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GB/T 41822-2022: Hot helium leak test methods for high temperature pressure-bearing components in nuclear fusion reactors
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 41822-2022 | English | 189 |
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Hot helium leak test methods for high temperature pressure-bearing components in nuclear fusion reactors
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GB/T 41822-2022
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Basic data | Standard ID | GB/T 41822-2022 (GB/T41822-2022) | | Description (Translated English) | Hot helium leak test methods for high temperature pressure-bearing components in nuclear fusion reactors | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F60 | | Classification of International Standard | 27.120 | | Word Count Estimation | 10,130 | | Date of Issue | 2022-10-14 | | Date of Implementation | 2023-05-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41822-2022: Hot helium leak test methods for high temperature pressure-bearing components in nuclear fusion reactors
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Hot helium leak test methods for high temperature pressure-bearing components in nuclear fusion reactors
ICS 27.120
CCSF60
National Standards of People's Republic of China
Thermal helium leak detection method for high temperature pressure-bearing components of nuclear fusion reactors
Published on 2022-10-12
2023-05-01 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 Symbol 1
5 General Requirements 2
6 Thermal Helium Leak Detection Test Equipment 3
7 Vacuum thermal helium leak detection test process 5
8 Test report 7
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.
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 Nuclear Energy Standardization Technical Committee (SAC/TC58).
This document is drafted by. Southwest Institute of Physics of Nuclear Industry, Chengdu Guoguang Electric Co., Ltd., Institute of Nuclear Industry Standardization.
The main drafters of this document. Chen Jiming, Leng Zhen, Wang Pinghuai, Zhou Yi, Shen Liru, Jin Fanya, Wang Kun, Li Ning, Li Yufang, Pan Jianjun,
Yu Haoyang.
Thermal helium leak detection method for high temperature pressure-bearing components of nuclear fusion reactors
1 Scope
This document describes the helium leak detection test method for high temperature pressure-bearing components of nuclear fusion reactors at high temperature and under high pressure helium pressure inside.
This document is applicable to high temperature pressure-bearing parts of nuclear fusion reactors, vacuum chamber parts of fusion reactors, vacuum sealed structural parts and other parts operating in high temperature environment
It can be used for the tightness test of components under ambient conditions, and the tightness test of high temperature or high temperature pressure-bearing components in other fields.
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 150.4-2011 Pressure Vessels Part 4.Manufacture, Inspection and Acceptance
GB/T 9445 Qualification and Certification of Nondestructive Testing Personnel
GB/T 12604.7-2021 Non-destructive testing term leak detection
GB/T 40335-2021 Non-destructive testing leak detection tracer gas method
NB/T 47013.8-2012 Non-destructive testing of pressure equipment - Part 8.Leak detection
3 Terms and Definitions
The terms and definitions defined in GB/T 12604.7-2021 and the following apply to this document.
3.1
A steady or fluctuating leak detector output signal due to residual tracer gas or other substances in the detector response.
3.2
background noise backgroundnoise
The maximum change in the amplitude of the background leak rate within 5 minutes after the background leak rate is stabilized.
Note. Occasional large pulse values are not taken into account.
3.3
hot helium leak test
Helium leak detection test performed at high temperature (greater than 80°C) of the tested part.
Note. The test temperature is determined according to the actual operating conditions of the component under test or user requirements.
4 symbols
The following symbols apply to this document.
C. Purity of helium, %.
D. System error, %.
In. noise floor, Pa·m3/s.
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