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GB 50177-2005: Design code for hydrogen station
GB 50177-2005
UDC GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
P GB 50177-2005
Design Code for Hydrogen Station
ISSUED ON: APRIL 15, 2005
IMPLEMENTED ON: OCTOBER 01, 2005
Issued by: Ministry of Construction of the People's Republic of China;
General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China.
Table of Contents
Foreword ... 4
1 General Provisions ... 6
2 Terms ... 6
3 General Layout ... 8
4 Process System ... 10
5 Equipment Selection ... 13
6 Process Layout ... 15
7 Building Structure ... 17
8 Electrical and Instrument Control ... 19
9 Lightning Protection and Earthing ... 21
10 Water Supply and Drainage and Fire Fighting ... 22
11 Heating and Ventilation ... 23
12 Hydrogen Gas Pipeline ... 23
Appendix A Division of Rating for Explosion Hazard Zone in Hydrogen Station ... 27
Appendix B Minimum Clear Distance between Overhead Hydrogen Gas Pipeline
and Other Overhead Pipeline in Plant Area, Hydrogen Station and Shop ... 29
Appendix C Minimum Clear Distance between Overhead Hydrogen Gas Pipeline in
Plant Area and Buildings and Structures ... 30
Appendix D Minimum Clear Distance between Hydrogen Gas Pipeline Buried
Directly in Plant Area and Other Buried Pipelines ... 31
Appendix E Minimum Clear Distance between Hydrogen Gas Pipeline Buried
Directly in Plant Area and Buildings and Structures ... 32
Explanation of Wording in This Code ... 33
1 General Provisions
1.0.1 This code is formulated with a view to correctly implementing the principles and
policies of the national capital construction in the design of hydrogen station and hydrogen
supply station, ensuring safety production, energy conservation, environmental protection,
meeting production requirements, and achieving advanced technology and economy and
rationality.
1.0.2 This code is applicable to the design of newly-built, renovated or extended hydrogen
station and hydrogen supply station and of hydrogen pipeline in plant area and shop.
1.0.3 The production fire hazard category of hydrogen station and hydrogen supply
station shall be Category "A".
The explosion hazard grade of room or area with explosion hazard in hydrogen
station and hydrogen supply station shall be divided into Zone 1 or Zone 2, and shall
meet the requirements of Appendix A of this code.
1.0.4 The design of hydrogen station, hydrogen supply station and hydrogen pipeline shall
not only comply with this code, but also those in the current relevant ones of the nation.
2 Terms
2.0.1 Hydrogen station
General term of process facilities, filling facilities, compression and storage facilities,
auxiliary facilities and buildings and structures or locations required by hydrogen production
through relevant process (for example, pressure swing adsorption by using water electrolysis,
natural reformed gas, methanol reformed gas, coke oven gas, water gas, etc. as virgin gas).
2.0.2 Hydrogen supply station
General term of buildings and structures, hydrogen gas receivers or locations,
supplying hydrogen through bottles or/and pipelines, excluding hydrogen generation
equipment.
2.0.3 Hydrogen gas receiver
General term of containers with constant pressure and variable volume (wet storage
holders) and with variable pressure and constant volume, for storing hydrogen.
2.0.4 Open flame site
Fixed site with exposed flame or red heat surface indoors and outdoors.
2.0.5 Sparking site
Chimney with spotting fire or such fixed site as outdoor grinding wheel, electric
welding and gas welding (cutting).
2.0.6 Filling hydrogen gas station
General term of buildings and structures or locations of hydrogen gas compression,
filling facilities and necessary auxiliary facilities for hydrogen gas filling.
2.0.7 The installation of hydrogen gas produced by electro1ysising water
General term of the combination of such equipment as water electrolyzer, hydrogen
(oxygen) gas-liquid separator, hydrogen (oxygen) cooler and hydrogen (oxygen) washer
which take water as the raw material.
2.0.8 The system of hydrogen gas produced by electrolysising water
General term of process system composed of the installation of hydrogen gas produced
by electro1ysising water and such operating units as hydrogen gas pressurizing, storage,
purification and filling, by producing hydrogen gas through water electrolysis process.
2.0.9 The installation of hydrogen purification by pressure swing adsorption
General term of the combination of process equipment which takes various gases
containing hydrogen as raw material, passes through multiple adsorption towers, adopts
pressure swing adsorption method and extracts hydrogen from virgin gas.
2.0.10 Hydrogen purification system by pressure swing adsorption
General term of process system composed of pressure swing adsorption device and
such operating units as hydrogen pressurizing, storage, purification and filling, by purifying
and producing hydrogen from various gases containing hydrogen through pressure swing
adsorption method.
2.0.11 The installation of hydrogen gas produced by the methanol transforming
General term of the combination of production equipment for cracking and
transforming methanol and producing hydrogen gas at a certain temperature, by taking
methanol and water as the raw material and adopting the catalytic transformation process.
2.0.12 The low pressure compressor for the hydrogen gas
Hydrogen gas compressor with output pressure less than 1.6MPa.
2.0.13 The middle pressure compressor for the hydrogen gas
Hydrogen gas compressor with output pressure larger than or equal to 1.6MPa and less
than 10.0MPa.
2.0.14 The high pressure compressor for the hydrogen gas
Hydrogen gas compressor with output pressure larger than or equal to 10.0MPa.
2.0.15 The bundle of hydrogen gas cylinders
Gas cylinder unit which is fixed by dedicated frame and the joints of multiple gas
cylinders are connected in parallel and combined through gas collecting tubes.
2.0.16 The hydrogen gas manifolds room
Room equipped with such facilities as manifolds for supplying hydrogen gas with
hydrogen gas cylinder.
2.0.17 The hydrogen gas filling room
Room equipped with such facilities hydrogen gas filling station or the bundle of
hydrogen gas cylinders for filling hydrogen gas cylinders.
2.0.18 Solid cylinder
Cylinder stored with filling pressure gas, gas cylinder with a water volume of 40L and a
design pressure of 12.0~20.0MPa in general.
2.0.19 Empty cylinder
Gas cylinder without internal pressure or remained with residual pressure.
2.0.20 Wet hydrogen
Hydrogen gas with water content reaching saturated or supersaturated state at the
located temperature and pressure.
2.0.21 The hydrogen gas compressor for turning system over
2 The adjacent wall shall be the fire wall without door, window or hole;
3 It shall not be connected with the shop with such fire working as heat treatment,
forging and pressing, and welding;
4 It should be arranged at the end of the plant building, and the fire resistance grade
of the connected building shall not be less than Grade II.
3.0.6 When the solid hydrogen gas cylinders in the hydrogen supply station do not exceed
60 or the floor area does not exceed 500m2, it may be adjacent to the hydrogen shop with
fire resistance grade not less than Grade II or other Category D or E shop with non-fire
working; the adjacent wall shall be the explosion-proof protecting wall ...