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GB 50156-2021: Code for design and construction of filling station
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GB 50156-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
UDC
P GB 50156-2021
Technical standard of fueling station
ISSUED ON: JUNE 28, 2021
IMPLEMENTED ON: OCTOBER 01, 2021
Issued by: Ministry of Housing and Urban-Rural Development of PRC.
State Administration for Market Regulation.
Table of Contents
Foreword ... 7
1 General provisions ... 10
2 Terms and abbreviations ... 10
2.1 Terms ... 10
2.2 Abbreviations ... 16
3 Basic requirements ... 16
4 Site choice of station ... 27
5 Layout of station ... 36
6 Oil fueling process and facilities ... 43
6.1 Oil tank ... 43
6.2 Oil dispenser ... 46
6.3 Pipeline system ... 46
6.4 Portable fuel device ... 50
6.5 Seepage prevention measures ... 52
6.6 Self-service fueling station (area) ... 54
7 LPG fueling process and facilities ... 55
7.1 LPG tank ... 55
7.2 Pump and compressor ... 58
7.3 LPG dispenser ... 59
7.4 LPG pipeline system ... 60
7.5 Unloading point of tank car ... 61
8 CNG fueling process and facilities ... 61
8.1 Process facilities of conventional CNG fueling station and primary CNG fueling station
... 61
8.2 Facilities of secondary CNG fueling station ... 65
8.3 Protection measures for CNG process facilities ... 65
8.4 CNG piping systems ... 68
9 LNG and L-CNG fueling process and facilities ... 69
9.1 LNG tank, pump and gasifier ... 69
9.2 LNG unloading process ... 73
9.3 LNG filling area ... 73
9.4 LNG pipeline system ... 74
10 High pressure hydrogen storage technology and facilities ... 75
10.1 General requirements ... 75
10.2 Hydrogen unloading facilities ... 75
10.3 Hydrogen pressure boost facilities ... 76
10.4 Hydrogen storage facilities ... 77
10.5 Hydrogen filling facilities ... 79
10.6 Pipeline and pipeline components ... 81
10.7 Safety protection of process system ... 83
11 Liquid hydrogen storage technology and facilities ... 86
11.1 Liquid hydrogen storage facilities ... 86
11.2 Liquid hydrogen unloading and pressurization facilities ... 89
11.3 Liquid hydrogen pipelines and low temperature hydrogen pipeline and pipeline
components ... 90
12 Fire protection system, water supply and drain system ... 92
12.1 Fire extinguishers ... 92
12.2 Water supply for fire protection ... 93
12.3 Water supply and drain system ... 95
13 Electric, alarm system and emergency cut-off system ... 96
13.1 Power supply ... 96
13.2 Lightning proof and anti-static measures ... 97
13.3 Charging facilities ... 99
13.4 Alarm system ... 99
13.5 Emergency shut-down system ... 100
14 Heating, ventilation, buildings and virescence ... 101
14.1 Heating and ventilation ... 101
14.2 Buildings ... 102
14.3 Virescence ... 105
15 Construction ... 105
15.1 General requirements ... 105
15.2 Material and equipment inspection ... 106
15.3 Civil engineering construction ... 109
15.4 Installation of equipment ... 112
15.5 Fabrication of oil, CNG and LNG pipeline ... 115
15.6 Fabrication of gaseous and liquified hydrogen pipeline ... 119
15.7 Fabrication of electrical equipment and instruments ... 122
15.8 Pipeline anti-corrosion and thermal insulation ... 124
15.9 Finishing documents ... 125
Appendix A The calculating points of clearance distance ... 128
Appendix B Classification of protection for civil buildings ... 129
Appendix C Classification and range of explosive danger zones ... 132
Appendix D Technical requirements for high pressure hydrogen pipes, low temperature
stainless steel pipes and their components ... 150
Explanation of wording in this standard ... 156
List of quoted standards ... 157
Technical standard of fueling station
1 General provisions
1.0.1 This standard is formulated, in order to implement relevant national guidelines
and policies in the design and construction of fueling stations, unify technical
requirements, achieve safety and applicability, advanced technology, economical
rationality.
1.0.2 This standard is applicable to the design and construction of newly built, expanded,
reconstructed automobile oil fueling stations, gas stations, oil and gas combined fueling
stations, oil and hydrogen combined fueling stations, gas and hydrogen combined
fueling stations, oil and gas and hydrogen combined fueling stations.
1.0.3 The design and construction of vehicle oil fueling, gas fueling, hydrogen fueling
stations shall not only comply with this standard, but also comply with the relevant
current national standards.
2 Terms and abbreviations
2.1 Terms
2.1.1 Fueling station
It is a place for fueling motor vehicles with vehicle fuel, including gasoline, diesel,
LPG, CNG, LNG, hydrogen, liquid hydrogen. It is a generic term of oil fueling
station, gas fueling station, oil and gas combined fueling station, oil and hydrogen
combined fueling station, gas and hydrogen combined fueling station, oil and gas
and hydrogen combined fueling station
2.1.2 Oil fueling station
A place which has oil storage facilities AND uses fuel dispensers to refuel motor
vehicles with gasoline (including methanol gasoline, ethanol gasoline), diesel and
other vehicle fuels.
2.1.3 Gas fueling station
It is a place which has gas storage facilities AND uses a gas dispenser to refill motor
vehicles with vehicle gas, such as LPG, CNG or LNG.
transportation; CNG and hydrogen can be supplied by long-tube trailers or tube-bundle
containers or pipeline delivery.
3.0.2 The scale of automobile oil fueling, gas fueling and hydrogen fueling stations
shall be determined according to resource conditions, market demand, surrounding
environment and other factors. Oil fueling stations, gas fueling stations, hydrogen
fueling stations can be jointly built, in accordance with Article 3.0.12 ~ Article 3.0.23
of this standard.
3.0.3 The portable fueling device shall not be used in places other than the enterprise's
own use, temporary or specific places; it shall be built separately. The design and
installation of oil fueling stations, which use portable fueling devices, shall comply with
the current industry standard "Technical specification for portable filling device in
automobile filling station" SH/T 3134 and the relevant provisions of Article 6.4 of this
standard.
3.0.4 The design of ethanol gasoline facilities in oil fueling stations shall not only
comply with the provisions of this standard, but also comply with the relevant
provisions of the current national standard "Code for design of automobile ethanol
gasoline storage and transportation" GB/T 50610.
3.0.5 Electric vehicle charging facilities can be set up in vehicle oil fueling, gas fueling
and hydrogen fueling stations. The design of electric vehicle charging facilities shall
not only comply with the provisions of this standard, but also comply with the relevant
provisions of the current national standard "Design code for electric vehicle charging
station" GB 50966.
3.0.6 For the CNG fueling stations, LNG fueling stations, urban natural gas master
stations and storage and distribution stations, LNG gasification stations, as well as the
CNG and LNG and urban natural gas receiving combined master stations, the design
and construction shall not only comply with the provisions of this standard, but also
comply with the relevant provisions of the current national standard "Code for design
of city gas engineering" GB 50028.
3.0.7 For the CNG fueling and natural gas transmission pipeline combined stations, the
design and construction shall not only comply with the provisions of this standard, but
also comply with the relevant provisions of the current national standard "Standard for
urban water conservation evaluation" GB 50183.
3.0.8 Vehicle oil fueling, gas fueling and hydrogen fueling stations can be set up to
operate non-oil business facilities, in accordance with relevant national provisions.
3.0.9 The grading of oil fueling stations shall comply with the provisions in Table 3.0.9.
1 The numbers in brackets in the Table are the safety distance -- between the buried
LPG storage tanks and buildings (structures) outside the station.
2 Outdoor transformation and distribution substation refers to the outdoor
transformation and distribution substation, which has a power system voltage of 35
kV ~ 500 kV and each transformer capacity above 10 MV • A, as well as the outdoor
step-down substation, which has a total transformer oil volume of industrial
enterprises greater than 5 t. Outdoor substations or transformers of other
specifications shall be determined, according to the production plant of category C
items.
3 The distance -- between the liquefied petroleum gas equipment and the entrances and
exits, doors and windows of the basement of the categories I, II, III protection objects
outside the station -- shall be increased by no less than 50%, according to the safety
distance of the categories I, II, III protection objects in this Table.
4 When the wall of a civil building of grade I and grade II fire resistance facing the gas
station is a solid wall, which has no door and without openings, THEN the distance -
- between the LPG equipment and the civil building -- shall not be less than the 70%
of the safety distance specified in this Table.
5 For gas fueling stations, which have integrally assembled above-ground LPG storage
tanks with a capacity less than or equal to 10 m3, the distance -- between the tank and
the buildings (structures) outside the station -- shall not be less than 80% of the safety
distance between the above-ground tanks for the grade III stations in this Table, and
shall not be less than 11 m.
6 The distance -- between the LPG storage tank and the independent civil building with
a construction area not exceeding 200 m2 outside the station -- shall not be lower than
80% of the safety distance of the category III protective objects in this Table,
meanwhile it shall not be less than the safety distance of the grade III station.
7 The grade I station, grade II station, grade III station in the Table include the grade
of the combined station.
8 H is the pole height or tower height of overhead communication lines and overhead
power lines.
4.0.6 The safety distance -- between CNG fueling stations, CNG process equipment in
various combined stations and buildings (structures) outside the stations -- shall not be
less than the provisions in Table 4.0.6.
the fire distance of the corresponding equipment in this Table.
2 The fire distance -- between hydrogen long-tube trailers, tube bundle containers and
buildings (structures) outside the station -- shall be determined according to the fire
distance of hydrogen storage vessels in this Table.
3 The grade I station, grade II station, grade III station in the Table include the grade
of combined stations.
4 Where there is a solid protective wall in compliance with Article 10.7.15 of this
standard, between the hydrogen process equipment in the Table and the buildings
(structures) outside the station, THEN, the corresponding safety distance (except for
important public buildings) shall not be less than 50% of the safety distance specified
in this Table, meanwhile it shall be not less than 8 m. The safety distance -- between
hydrogen storage wells, hydrogen compressor rooms (chambers), hydrogen dispenser,
liquid hydrogen unloading points and urban roads -- shall not be less than 5 m.
5 When the working pressure of the hydrogen equipment in the Table is greater than
45 MPa, the safety distance -- between the hydrogen equipment and the buildings
(structures) outside the station (excluding overhead communication lines and
overhead power lines) -- shall be increased by no less than 20% according to the safety
distance in this Table.
6 When the distance -- between the liquid hydrogen process equipment and the location
with open flame or sparks -- is less than 35 m, a solid wall which has a height of not
less than 2.2 m shall be set between the two.
7 The numbers in brackets in the Table are the safety distance -- between the liquid
hydrogen storage tank and the buildings (structures) outside the station.
8 H is the pole height or tower height of overhead communication lines and overhead
power lines.
4.0.9 In Table 4.0.4 ~ Table 4.0.8 of this standard, the starting and ending points for the
calculated spacing of equipment or buildings (structures) shall comply with the
provisions of Appendix A of this standard.
4.0.10 In Tables 4.0.4 ~ 4.0.8 of this standard, the division of protection categories for
important public buildings and civil buildings shall comply with the provisions of
Appendix B of this standard.
4.0.11 In Table 4.0.4 ~ Table 4.0.8 of this standard, the definitions of "open flame
location" and "spark emitting location", as well as the division of "category A, B, C, D,
E items" and "category A, B, C liquid" shall comply with the relevant provisions of the
current national standard "Code of design on building fire protection and prevention"
GB 50016.
4.0.12 The overhead power lines shall not cross the operation area of the vehicle oil
fueling, gas fueling and hydrogen fueling station. Overhead communication lines shall
not cross the operation area of hydrogen fueling facilities, in gas fueling stations and
hydrogen fueling combined stations.
4.0.13 The flammable medium pipelines not related to the vehicle oil fueling, gas
fueling, hydrogen fueling station shall not cross the land area of the vehicle oil fueling,
gas fueling, hydrogen fueling station.
5 Layout of station
5.0.1 Vehicle entrances and exits shall be set separately.
5.0.2 The parking spaces and roads in the station area shall comply with the following
requirements:
1 The width of the lane or parking space, in the station, shall be determined according
to the vehicle type. The width of single-lane or single-vehicle parking spaces, in
the primary CNG fueling station, shall not be less than 4.5 m; the width of double-
lane or double-vehicle parking spaces shall not be less than 9 m. The width of th...