GB/T 34539-2017 in English

《GB/T 34539-2017氢氧发生器安全技术要求》由TC309（全国氢能标准化技术委员会）归口，主管部门为国家标准化管理委员会。

Safety requirements on hydrogen-oxygen generator

1 Scope

This standard specifies the basic safety requirements on hydrogen-oxygen generator, environmental safety requirements on places with hydrogen-oxygen generator, gas supply system, electrical devices, safety protection devices, commissioning, operation and maintenance, emergency treatment, etc.

This standard is applicable to hydrogen-oxygen generators with working pressure ≤ 0.2 MPa and PV ≤ 8.0 MPa·L as well as the hydrogen-oxygen mixed gas supply pipeline thereof.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB 2894 Safety signs and guideline for the use
GB/T 4830 Pressure range and quality of air supply for the industrial process measurement and control instruments
GB 4962 Technical safety regulation for gaseous hydrogen use
GB 9448 Safety in welding and cutting
GB/T 19001 Quality management systems - Requirements
GB/T 24499 Technology glossary for gaseous hydrogen, hydrogen energy and hydrogen energy system
GB/T 29411-2012 Technical specification of hydrogen-oxygen generator with water electrolyte
GB/T 29729-2013 Essential requirements for the safety of hydrogen systems
GB 50058 Code for design of electrical installations in explosive atmospheres
GB 50177 Design code for hydrogen station

3 Terms and definitions

For the purposes of this document, the terms and definitions given in GB/T 24499 and GB/T 29411-2012 and the following apply.

3.1
hydrogen-oxygen mixed gas
mixture of hydrogen and oxygen with a ratio of 2:1 produced by water electrolysis hydrogen-oxygen generator, also known as Brown's gas

3.2
dry flame arrester
safety device to block the flashback of hydrogen-oxygen mixed gas with solid materials

3.3
wet flame arrester
safety device to block the flashback of hydrogen-oxygen mixed gas with liquid substances See Annex A.

3.4
extinguisher
device to feed inert gas to extinguish the flame when gas supply is stopped

Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Basic requirements
5 Safety requirements for environment where the hydrogen-oxygen generator is installed
6 Safety requirements for gas supply system
7 Electric devices
8 Safety protection devices
9 Commissioning, operation and maintenance
10 Emergency treatment
Annex A (Informative) Wet flame arrester