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[2021 Edition of GB 50516-2010] Technical code for hydrogen fuelling station
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[2021 Version] Technical code for hydrogen fuelling station
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GB 50516-2021: [2021 Edition of GB 50516-2010] Technical code for hydrogen fuelling station---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB50516-2021
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
UDC
P GB 50516-2010
Technical Code for Hydrogen Fuelling Station
(Version 2021)
Issued on. MAY 31, 2010
Implemented on. DECEMBER 1, 2010
Issued by. Ministry of Housing and Urban-Rural Development of the People's
Republic of China;
State Administration for Market Regulation
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
Technical Code for Hydrogen Fuelling Station
(Version 2021)
Mainly drafted by. Ministry of Industry and Information Technology of
the People's Republic of China
Approved by. Ministry of Housing and Urban-Rural Development of the
People's Republic of China
Date of implementation. December 1, 2010
China Planning Press
2021 Beijing
Announcement of Ministry of Housing and Urban-Rural
Development of the People's Republic of China
Version 2021, No. 42
Table of Contents
Technical Code for Hydrogen Fuelling Station... 10
1 General Provisions... 10
2 Terms... 11
3 Basic Requirements... 14
4 Location... 16
5 General Layout... 18
6 Hydrogen Fuelling Process and Equipment... 23
6.1 Hydrogen Quality and Metering... 23
6.2 Hydrogen Compressing Process and Equipment... 24
6.3 Hydrogen Storage System and Equipment... 26
6.4 Hydrogen Dispenser... 28
6.5 Hydrogen Pipelines and Accessories... 30
6.6 Materials in Contact with Hydrogen... 32
7 Fire Protection and Safety Facilities... 34
7.1 Fire Protection Facilities... 34
7.2 Safety Facilities for Hydrogen Fuelling Process System... 34
7.3 Alarm Device... 35
8 Architectural... 37
9 Water Supply and Drainage... 39
10 Electrical Installations... 40
10.1 Power Supply and Distribution... 40
10.2 Lightning and Grounding... 40
10.3 Protection of Electrostatic Discharge... 41
11 Heating and Ventilation... 43
12 Construction, Installation and Approval... 44
12.1 General Requirement... 44
12.2 Installation of Equipment... 44
12.3 Installation of Pipeline... 47
12.4 Installation of Electrical Instruments... 49
12.5 Construction Approval... 51
13 Requirements for Hydrogen System Operation and Management... 54
Appendix A Zones of Rating for Explosion Danger in Hydrogen Fuelling Station... 56
Appendix B... 59
Deleted... 59
Explanation of Wording in This Code... 60
List of Quoted Standards... 61
Technical Code for Hydrogen Fuelling Station
1 General Provisions
1.0.1 This code is established in order to implement the relevant national policies in the
design, construction and operation process of the hydrogen fuelling station, unify the
technical requirements, and realize safety and reliability, advanced technology, energy saving
and emission reduction, and economic rationality.
1.0.2 This code applies to the design, construction, and building of newly built, rebuilt and
extended hydrogen fuelling station projects.
1.0.3 The design, construction and building of the hydrogen fuelling station shall, in addition
to complying with this code, comply with the requirements of the relevant national standards.
2 Terms
2.0.1 Hydrogen fuelling station
It refers to a specific place wherein the hydrogen cylinders of the hydrogen fuel cell vehicle or
hydrogen internal combustion engine automobile or hydrogen gas mixture fuel automobile are
charged with hydrogen fuel.
2.0.2 The system of hydrogen produced on site
It refers to the hydrogen production system installed in the hydrogen fuelling station, which is
usually a general name of hydrogen production, purification, compression and supporting
facilities.
It refers to the building which is used for the management and operation of the hydrogen
fuelling station.
2.0.6 Hydrogen fuelling island
It refers to the platform wherein the hydrogen fuelling machine OR the hydrogen & gas
mixture dispenser is installed.
2.0.9 Deleted.
2.0.9A Stationary pressure vessels for storage of hydrogen
It refers to pressure vessels in fixed installation for the storage of hydrogen fuel, which
include pressure vessels for gaseous hydrogen storage, liquid hydrogen storage and metal
hydride storage. They are abbreviated as hydrogen storage vessels.
3 Basic Requirements
3.0.1 The design of the hydrogen fuelling station shall combine the hydrogen supply mode.
The hydrogen fuelling station may be supplied with hydrogen by the use of tube trailers for
gaseous hydrogen, tube skid container for gaseous hydrogen, liquid hydrogen lorry truck, tank
containers for liquid hydrogen, pipeline transportation, or the system of hydrogen produced
on site, etc. The hydrogen fuelling station may be combined with natural gas fuelling stations
or gasoline stations.
3.0.2 Deleted.
3.0.2A Classification of hydrogen fuelling stations shall be in accordance with the
requirements of Table 3.0.2A.
3.0.4 Deleted.
3.0.5 Deleted.
3.0.6 The fire hazard category for the hydrogen fuelling station shall be category A. And
the explosion hazard level of the room or regions in the hydrogen fuelling station having
explosion hazard shall be classified as Zone 1 or Zone 2.
4 Location
4.0.1 The site selection of hydrogen fuelling station shall comply with the requirements of
urban planning, environmental protection and energy conservation, and fire safety, AND shall
be at a convenient location.
4.0.2 It is not allowed to construct the level I hydrogen fuelling station in the city center.
4.0.3 It is preferable for the hydrogen fuelling station in the city center to be close to urban
roads, but it shall not be located near the intersection of city main roads.
4.0.4 Deleted.
4.0.4A The fire separation between the hydrogen process facility in the hydrogen fuelling
station and the outside buildings and structures shall be not less than the values as
specified in Table 4.0.4A.
4.0.5 The classification of the protection category of civil buildings shall comply with the
requirements of the current national standard “Code for Design and Construction of
Automobile Gasoline and Gas Filling Station” GB 50156.
4.0.6 Deleted.
4.0.7 Deleted.
5 General Layout
5.0.1 Deleted.
5.0.1A The fire separation between the facilities in the hydrogen fuelling station shall not
be less than the values as specified in Table 5.0.1A.
5.0.2 The fence setting of the hydrogen fuelling station shall comply with the following
requirements.
5.0.6 Deleted.
5.0.7 The tube trailers for gaseous hydrogen and tube skid container for gaseous hydrogen in
the hydrogen fuelling station shall be arranged in accordance with the following provisions.
5.0.7A When liquid hydrogen lorry truck and tank containers for liquid hydrogen are used as
fixed hydrogen storage pressure vessels, the parking space layout of the liquid hydrogen lorry
truck and tank containers for liquid hydrogen shall comply with the following stipulations.
5.0.8 Deleted.
5.0.9 The layout between the liquid hydrogen booster pump and liquid hydrogen storage
pressure vessels should be determined in accordance with the process requirements.
5.0.10 No roads shall be set up between the tube trailers for gaseous hydrogen and tube skid
container for gaseous hydrogen, and the compressor. Safety and fire prevention measures
shall be set up between tube trailers for gaseous hydrogen and tube skid container for gaseous
hydrogen, and adjacent roads.
6 Hydrogen Fuelling Process and Equipment
6.1 Hydrogen Quality and Metering
6.1.1 The quality of the incoming hydrogen shall comply with the following stipulations.
6.1.2 The quality of the outgoing hydrogen of the hydrogen fuelling station shall be
determined in accordance with the user's requirements and shall be not lower than the
following requirements.
6.1.3 The metering of incoming hydrogen of the hydrogen fuelling station shall comply with
the following requirements.
6.1.4 The quality and metering requirements for the incoming natural gas in the mixed fuel
shall comply with the relevant stipulations of the current national standard “Compressed
natural Gas as Vehicle Fuel” GB 18047 and “Code for Design and Construction of
Automobile Gasoline and Gas Filling Station” GB 50156.The fuel mixture proportion of the
hydrogen natural gas mixture vehicle shall be determined in accordance with the requirements
of the mixture fuel vehicle engine.
6.1.5 As for the hydrogen used for the hydrogen fuel cell vehicles, if the quality of the
incoming hydrogen cannot reach to the quality criteria of the hydrogen for fuel cell, it shall
select the corresponding hydrogen purification device based on the purity or impurity content
of the incoming hydrogen, and it is preferable for the hydrogen purification device to be in
front of the hydrogen compressor.
6.1.6 Such procedures as purification, compression, metering, mixing, transportation, and
storage, etc., in the hydrogenation process system shall be equipped with the pressure
detection points, and it shall also be equipped with the over-pressure or low pressure alarm
device in accordance with the safety operation requirements.
6.1.7 The hydrogen fuelling station shall set up a process control system. The operation status
of the process equipment of the hydrogen fuelling station should be collaboratively optimized,
managed, controlled and monitored in accordance with the actual demands.
6.2 Hydrogen Compressing Process and Equipment
6.2.1 The hydrogen compression process system of the hydrogen fuelling station shall be
determined in accordance with the incoming hydrogen delivery method, and meanwhile
comply with the following provisions.
6.2.6 Deleted.
6.2.7 The condensate which is drained from different levels of coolers, gas-water
separators, and hydrogen pipeline of the hydrogen compressor shall all be collected by
the special purpose drainage device and delivered into the condensate drainage device,
and then drained outdoor.
6.2.8 Hydrogen compressor operation and management should be controlled through a
programmable controller (PLC).
6.3 Hydrogen Storage System and Equipment
6.3.1 The working pressure of the hydrogen storage system in the hydrogen fuelling station
shall be determined in accordance with the hydrogen charging pressure of the on-board
hydrogen storage cylinder. When the hydrogen charging pressure is 35 MPa, the working
pressure of the hydrogen storage system in the hydrogen fuelling station should not be greater
than 45 MPa; when the hydrogen charging pressure is 70 MPa, the working pressure of the
hydrogen storage system of the hydrogen fuelling station should not be greater than 90 MPa.
6.5 Hydrogen Pipelines and Accessories
6.5.1 Hydrogen pipeline material of the hydrogen fuelling station should select S31603 or
other materials that have been tested to demonstrate good hydrogen compatibility.
6.5.1A When austenitic stainless steel is selected, its nickel content shall be greater than 12%,
and its nickel equivalent shall not be less than 28.5%. The nickel equivalent shall be
calculated in accordance with the following formula.
7 Fire Protection and Safety Facilities
7.1 Fire Protection Facilities
7.2 Safety Facilities for Hydrogen Fuelling Process System
7.2.1 The hydrogen inlet manifold of the hydrogen fuelling station shall be equipped
with emergency cut-off valve. The manual emergency cut-off valve shall be so positioned
as being able to cut off the hydrogen source in time in case of accident.
7.2.2 Deleted.
7.3 Alarm Device
7.3.1 The hydrogen equipment shall take the following warning measures.
7.3.2 The hydrogen compressor shall be equipped with an alarm device in accordance with
the requirements of clause 6.2.5 of this code.
7.3.3 Hydrogen compressor room or portable hydrogen compressor unit, hydrogen
storage vessel and hydrogen production room, where hydrogen is easily accumulated
and leaked, shall be equipped with the alarm device to indicate the hydrogen
concentration in the air exceeding limit, and such device shall alarm and record when
the hydrogen content in the air reaches up to 0.4% (volume fraction) and initiate the
corresponding accident exhaust fan.
7.3.4 When the hydrogen production system is set in the hydrogen fuelling station, each alarm
facility shall comply with the relevant requirements of the current national standard “Design
code for hydrogen station” GB 50177.When it uses the portable hydrogen production device,
it shall comply with the relevant requirements of the current national standard “Specification
of water electrolyte system for producing hydrogen” GB/T 19774 and “Specification of
hydrogen purification system on pressure swing absorption” GB/T 19773.
7.3.5 Deleted.
8 Architectural
8.0.1 The fire rating of the buildings in the hydrogen fuelling station or the combined
station shall be not less than level II.
8.0.2 It is preferable for the buildings in the hydrogen fuelling station or the combined station
to be single-floored building.
8.0.3 The upper canopy installed at the hydrogen fuelling island and the hydrogen
dispenser locations shall comply with the following requirements.
8.0.4 As for the rooms having explosion hazard, it is preferable to use the frame or bay
structure which adopts reinforced concrete column to withstand load. When using steel
column to withstand load, the steel column shall take fireproof protection measures, with the
fire endurance not less than 2.00 h.
8.0.8 If the hydrogen storage vessel or the cylinder assemblies for storage of gaseous
hydrogen are arranged adjacent to the hydrogen compressor room, hydrogen pressure
regulating valve bank room, and power substation and distribution room in the hydrogen
fuelling station, and meanwhile, the fire separation cannot satisfy the requirements of clause
5.0.1A of this code, it shall use the reinforced concrete fire wall for separation. The partition
wall top shall be higher above the top of the hydrogen storage vessel or the cylinder
assemblies for storage of gaseous hydrogen for at least 1 m, the partition wall length shall be
the total length of the hydrogen storage vessel or the cylinder assemblies for storage of
gaseous hydrogen plus 2 m and above at both ends, respectively, and the partition wall
thickness shall be not less than 0.20 m.
8.0.9 The upper space of the room having explosion hazards shall be well ventilated. The
inner surface of the roof shall be flat and free from dead corner or hydrogen
accumulation.
8.0.10 The terrace of the room or region having explosion hazards shall adopt the floor
that will not generate spark.
8.0.11 It is not allowed to set the accommodation, catering and recreation facilities of
business nature in the hydrogen fuelling station.
8.0.12 Deleted.
9 Water Supply and Drainage
9.0.1 It is preferable for the production and living water supply pipelines of the hydrogen
fuelling station to be combined with the fire water supply pipeline.
9.0.2 The cooling water system as required by the water cooling gas compressors shall
comply with the following requirements.
9.0.3 Deleted.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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