GB/T 34584-2017Safety technical regulations for hydrogen refueling station (English PDF)

Foreword

This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Application Scope

This Standard specifies the safety technical regulations for hydrogen transmission, hydrogen production in station, hydrogen storage, compression, refueling and safety and fire protection and other aspects of hydrogen refueling stations for vehicles.

This Standard applies to the hydrogen refueling stations using all kinds of hydrogen supply methods, as well as two-station-combined or multiple-station-combined hydrogen refueling stations, such as hydrogen-oil refueling stations, hydrogen-gas refueling stations and hydrogen refueling-charging stations.

2 Normative References

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

GB 4962, Technical Safety Regulation for Gaseous Hydrogen Use

GB 12358, Gas Monitor and Alarms for Workplace - General Technical Requirements

GB 16808, Combustible Gas Alarm Control Units

GB/T 18442.1, Static Vacuum Insulated Cryogenic Pressure Vessel - Part 1. General Requirements

GB/T 18442.2, Static Vacuum Insulated Cryogenic Pressure Vessel - Part 2. Material

GB/T 18442.3, Static Vacuum Insulated Cryogenic Pressure Vessel - Part 3. Design

GB/T 18442.4, Static Vacuum Insulated Cryogenic Pressure Vessel - Part 4. Fabrication

GB/T 18442.5, Static Vacuum Insulated Cryogenic Pressure Vessel - Part 5. Inspection and Test

GB/T 18442.6, Static Vacuum Insulated Cryogenic Pressure Vessel - Part 6. Safety Device Requirements

GB/T 19773, Specification of Hydrogen Purification System on Pressure Swing Adsorption

GB/T 19774, Specification of Water Electrolyte System for Producing Hydrogen

GB/T 24499, Technology Glossary for Gaseous Hydrogen, Hydrogen Energy and Hydrogen Energy System

GB/T 29729, Essential Requirements for the Safety of Hydrogen Systems

GB/T 29781, General Requirements for Electric Vehicle Charging Station

GB/T 31138, Compressed Hydrogen Dispenser for Vehicles

GB 50016, Code for Fire Protection Design of Buildings

GB 50058, Code for Design of Electrical Installations in Explosive Atmospheres

GB 50116, Code for Design of Automatic Fire Alarm System

GB 50156, Code for Design and Construction of Filling Station

GB 50177, Design Code for Hydrogen Station

GB 50516, Technical Code for Hydrogen Fuelling Station

GB 50966, Code for Design of Electric Vehicle Charging Station

TSG 21, Supervision Regulation on Safety Technology for Stationary Pressure Vessel

3 Terms and Definitions

For the purposes of this Standard, the following terms and definitions and those defined in GB/T 24499 and GB/T 50516 apply.

4 Basic Requirements

4.7 When the hydrogen refueling stations are combined with charging stations, the design of charging process facilities shall be as specified in GB 50966 and GB/T 29781.

5 Site Selection

5.1 The hydrogen refueling stations and all kinds of combined stations shall conform to the town planning, which shall be located in places with convenient transportation; they shall not be located in places where there is much dust or corrosive gases or places which are low lying and possibly accumulate water.

5.2 A buffer distance or buffer area may preferably be provided between the hydrogen refueling stations combined with charging stations and municipal roads outside the stations for the convenience of access and waiting of electric vehicles.

5.3 The fire-protection distance between the process facilities of the hydrogen stations, hydrogen-gas combined refueling stations and hydrogen-oil combined refueling stations, and the buildings and structures outside the stations, shall be as specified in GB 51516.

5.4 The fire-protection distance between the hydrogen process facilities of the combined hydrogen stations combined with charging stations, and the buildings and structures outside the stations, shall be as specified in GB 51516.

5.5 The fire-protection distance between the charging process facilities of the combined hydrogen stations combined with charging stations, and the buildings and structures outside the stations, shall be as specified in GB 50016 and GB 50966.

6 Layout

6.1 The fire-protection distance between the facilities within the hydrogen refueling stations, hydrogen-gas combined refueling stations and hydrogen-oil combined refueling stations shall be as specified in GB 50516 and GB 50156.

6.2 The installation locations of the charging process facilities of the combined hydrogen refueling stations combined with charging stations shall be more than 3 m from the boundary lines of the explosion hazard areas; and the classification of explosion hazard areas shall be as specified in GB 50516.

6.3 Cross arrangement of the process facilities of different media for hydrogen refueling, gas refueling, oil refueling, charging etc. within the hydrogen refueling stations and all kinds of combined hydrogen refueling stations is not advisable.

9 Hydrogen Production within Hydrogen Refueling Stations

9.1.3 The direct current supply circuits of the water electrolysis hydrogen production equipment shall be made of copper conductors, which shall be laid in low places or trenches; and when bare bus bars must be used, measures shall be taken to prevent spark discharge.

9.1.4 Before starting the water electrolysis hydrogen production equipment, check all protective and safety facilities to ensure they are in sound conditions, such as pressure regulating devices, blow-down purging and analytical facilities, safety valves and all kinds of indication and regulating instruments. Before starting the systems, check and ensure the oxygen content in nitrogen entrained into the systems by purging replacement is less than 0.5%.

9.2 Hydrogen production by reforming natural gas and methyl alcohol […]