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GB/T 37241-2018: Guide on inerting for the prevention of explosions
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 37241-2018 | English | 839 |
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Guide on inerting for the prevention of explosions
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GB/T 37241-2018
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PDF similar to GB/T 37241-2018
Standard similar to GB/T 37241-2018 GB 17440 GB 17440 GB/T 17919 GB 17918 Basic data | Standard ID | GB/T 37241-2018 (GB/T37241-2018) | | Description (Translated English) | Guide on inerting for the prevention of explosions | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | C67 | | Classification of International Standard | 13.230 | | Word Count Estimation | 42,485 | | Date of Issue | 2018-12-28 | | Date of Implementation | 2019-07-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 37241-2018: Guide on inerting for the prevention of explosions---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.
Guide on inerting for the prevention of explosions
ICS 13.230
C67
National Standards of People's Republic of China
Inertization and explosion protection guide
Published on.2018-12-28
2019-07-01 implementation
State market supervision and administration
China National Standardization Administration issued
Content
Foreword III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 General requirements 3
5 inerting method 4
6 inerting system 6
7 Personal protection 10
Appendix A (informative) The limiting oxygen concentration of common flammable gases and dusts is 11
Appendix B (informative) Explosive concentration range of combustible gas and combustible dust 15
Appendix C (informative) Inerting calculation 22
Appendix D (informative) Prevents air from diffusing downward into the release tube 25
Appendix E (informative) Solid material double valve 27
Appendix F (informative) Open container charge 29
Appendix G (informative) Process equipment inerting example 31
Appendix H (informative) Common Oxygen Concentration Detector 34
Reference 36
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the Emergency Management Department of the People's Republic of China.
This standard is under the jurisdiction of the National Safety Production Standardization Technical Committee (SAC/TC288).
This standard was drafted. Tianjin Fire Research Institute of the Ministry of Public Security, Institute of Industrial Explosion and Protection of Northeastern University, Shaanxi Provincial Public Security Fire Brigade,
China Wuhuan Engineering Co., Ltd., Sinopec Engineering Construction Co., Ltd., MCC Saidi Engineering Technology Co., Ltd., Weitron Fire Safety
Group-owned company, Shenhua Group Co., Ltd.
The main drafters of this standard. Ren Changxing, Du Xia, Li Ye, Zhong Shengjun, Zhang Ming, Li Jin, Zhang Xin, Zhang Wang, Wang Wei, Yang Jianguo, Dong Haibin,
Wang Ruoqing, Chen Le, Li Wei, Li Huiying, Li Hua.
Introduction
Inerting protection is to prevent combustible dust or gas in the equipment by introducing inert gas or adding inert dust to the equipment to be protected.
An inertial explosion-proof technology for explosions. Inert explosion-proof is commonly used in coal chemical, electric power, steel, cement and other coal powder preparation systems, and can also be used in petroleum.
Neutralization of atmospheres in explosive atmospheres of combustible dusts, combustible gases or mixtures of chemicals, plastics, pharmaceuticals, pesticides, etc. On the lower pressure
The rising rate of dust can be drastically reduced by mixing a small amount of inert dust. Usually mixed with 60% inert dust, the explosiveness is complete
Lost. Dust inerting may have little effect on the explosion pressure, but it has a great influence on the rate of explosion pressure rise, which can slow down the development of the explosion.
Or make the explosion a slow burning. This standard does not involve the inertia of inert dust.
This standard is for optimizing the selection of industrial fireproof and explosion-proof inerting technology methods, determining the minimum oxygen content of combustible mixed dust or gas, and calculating the inertia.
The flow of gas, as well as the storage of inert gases, monitoring systems and the design of linkage control are instructive.
Inertization and explosion protection guide
1 Scope
This standard gives the basic method and inerting system technology for inerting and explosion of atmosphere in combustible dust or flammable gas explosive environment.
Claim.
This standard applies to the inerting of the inert gas into the explosive atmosphere of combustible dust, combustible gas or a mixture thereof.
Chemical technology, partial inerting can be referred to implementation.
This standard does not apply to the following situations.
---Inertization technology that uses inert dust to combustible dust to prevent dust explosion;
--- Techniques for setting a fire-resistant metal mesh in a gas space in a container or storage tank to prevent explosion of flammable liquid vapor;
---Extinguishing;
--- Techniques for controlling the concentration of combustible substances above the upper explosion limit to avoid an explosive atmosphere;
--- Control the dust layer or dust deposits to occur in the fire, spontaneous combustion, exothermic reaction or fire protection in the dust layer.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 15604 dust explosion-proof terminology
GB 25285.1 Explosive environmental explosion prevention and protection - Part 1. Basic principles and methods
3 Terms and definitions
The following terms and definitions as defined in GB/T 15604 and GB 25285.1 apply to this document.
3.1
Inerting
The mixture in the system cannot be explosive by adding inert gas to the protected system or adding inert dust to the combustible dust.
Environment, or explosion-proof technology that increases the difficulty of ignition of the mixture.
3.2
Atmosphere inertia atmosphereinerting
By filling the protected system with inert gas, the mixture in the system can not form an explosive environment, or increase the difficulty of the mixture ignition.
Explosion-proof technology.
3.3
Completely inerted absoluteinerting
One of the inerting techniques, because the proportional concentration of the inert gas in the protected system is sufficiently high, regardless of the ratio of combustibles to oxygen-containing gas mixture
For example, no change will create an explosive environment.
3.4
Partially inertial partialinerting
One of the inerting techniques, which controls the oxygen concentration in the system by charging an inert gas into the protected system to make combustible gas or combustible dust.
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