GB 50156-2012 English PDF (GB50156-2012)

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GB 50156-2012: [Including 2014XG1] Code for design and construction of filling station
GB 50156-2012 (2014 Edition)
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
UDC
P GB 50156-2012
Code for Design and Construction of Filling Station
(2014 Edition)
ISSUED ON: JUNE 28, 2012
IMPLEMENTED ON: MARCH 01, 2013
Issued by: Ministry of Housing and Urban-Rural Development 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
1 General Provisions ... 10 
2 Terms, Symbols and Abbreviations ... 11 
2.1 Terms ... 11 
2.2 Symbols ... 15 
2.3 Abbreviations ... 16 
3 Basic Requirements ... 17 
4 Site Choice of Station ... 22 
5 Layout of Station ... 36 
6 Fuel Filling Process and Facilities ... 49 
6.1 Oil Tank ... 49 
6.2 Oil Dispenser ... 51 
6.3 Pipeline System ... 52 
6.4 Portable Fuel Device ... 56 
6.5 Seepage Prevention Measures ... 56 
6.6 Self-service Fuel Filling Station (Area) ... 58 
7 LPG Filling Process and Facilities ... 61 
7.1 LPG Tank ... 61 
7.2 Pump and Compressor ... 63 
7.3 LPG Dispenser ... 65 
7.4 LPG Pipeline System ... 65 
7.5 Unloading Point of Tank Car ... 66 
8 CNG Filling Process and Facilities ... 68 
8.1 Process Facilities of Conventional CNG Filling Station and Primary CNG
Filling Station ... 68 
8.2 Facilities of Secondary CNG Filling Station ... 71 
8.3 Protection Measures for CNG Process Facilities ... 72 
8.4 CNG Piping System ... 74 
9 LNG and L-CNG Filling Process and Facilities ... 76 
9.1 LNG Tank, Pump and Gasifier ... 76 
9.2 LNG Unloading Process ... 80 
9.3 LNG Filling Area ... 80 
9.4 LNG Pipeline System ... 81 
10 Fire Protection System, Water Supply and Drain system ... 83 
10.1 Fire Extinguishers ... 83 
10.2 Water Supply System for Fire Protection of LPG, LNG Facilities ... 84 
10.3 Water Supply and Drain System ... 86 
11 Electrical, Alarm System and Emergency Cut-off System ... 87 
11.1 Power Supply ... 87 
11.2 Lightningproof Anti-static Measures ... 88 
11.3 Charging Facilities ... 90 
11.4 Alarm System ... 91 
11.5 Emergency Cut-off System ... 91 
12 Heating, Ventilation, Buildings and Virescence ... 93 
12.1 Heating and Ventilation ... 93 
12.2 Buildings ... 94 
12.3 Virescence ... 96 
13 Construction ... 97 
13.1 General Requirements ... 97 
13.2 Material and Equipment Inspection ... 98 
13.3 Civil Engineering Construction ... 101 
13.4 Installation of Equipment ... 104 
13.5 Pipeline Fabrication ... 107 
13.6 Fabrication of Electrical Equipment and Instruments ... 111 
13.7 Pipeline Anti-Corrosion and Thermal Insulation ... 113 
13.8 Hand-over Documents ... 114 
Appendix A The Calculating Points of Clearance Distance ... 117 
Appendix B Classification of Protection for Civil Buildings ... 118 
Appendix C Classification and Range of Explosive Danger Zones ... 121 
Explanation of Wording in this Code ... 133 
List of Quoted Standards ... 134 
2 Terms, Symbols and Abbreviations
2.1 Terms
2.1.1 Filling station
General term of fuel filling station, gas filling station as well as fuel and gas combined
filling station.
2.1.2 Fuel filling station
Place where fuel storage facilities are provided, and a fuel dispenser is used to fill
vehicle fuel oil such as gasoline and diesel for motor vehicles and other convenient
services may be provided.
2.1.3 Gas filling station
Place where gas storage facilities are provided, and a gas dispenser is used to fill
vehicle fuel gas such as LPG, CNG or LNG for motor vehicles and other convenient
services may be provided.
2.1.4 Fuel and gas combined filling station
Place where fuel (gas) storage facilities are provided, vehicle fuel oil and vehicle fuel
gas may be filled for motor vehicles, and other convenient services may also be
provided.
2.1.5 Station house
Building for filling station management and operation, where other convenient
services may be provided.
2.1.6 Operational area
Area in the filling station where such equipment as fuel (gas) unloading facilities, fuel
(gas) storage facilities, fuel dispenser, gas dispenser, dispensing (bleeding) pole, vent
pipe (bleeder), combustible liquid tank car unloading parking space, vehicle-mounted
storage bottles group trailer parking space, LPG (LNG) pump and CNG (LPG)
compressor are arranged. The boundary line of this area is the boundary line of
equipment explosion danger area plus 3m, and is the outer edge of diesel-filling
equipment plus 3m.
2.1.7 Auxiliary service area
Area outside the operational area within the range of property line of filling station.
2.1.17 Vapor recovery system for gasoline unloading process
System that seals and recovers the vapor generated when the tank truck unloads oil
to the gasoline tank into the tank truck.
2.1.18 Vapor recovery system for filling process
System that seals and recovers the vapor generated when filling the gasoline vehicle
into the buried gasoline tank.
2.1.19 Portable fuel device
Ground fuel device that integrates the ground fire-proof and explosion-proof oil tank,
fuel dispenser, automatic fire sprinkler, etc. into a portable body.
2.1.20 Self-service fuel filling station (area)
Fuel filling station (area) where corresponding safety protection facilities are provided
and the customer may complete fuel filling for the vehicles at discretion.
2.1.21 LPG filling station
Place where vehicle LPG is filled in LPG automobile storage bottles; it is also a place
where other convenience services may be provided.
2.1.22 Buried LPG tank
Horizontal LPG tank whose tank top is lower than the ground within 4m around, buried
underground by directly covering soil or filling sand in the tank.
2.1.23 CNG filling station
General term of CNG conventional filling station, primary CNG filling station and
secondary CNG filling station.
2.1.24 CNG conventional filling station
Place where gas is taken from the natural gas pipeline out of the station, process
treated and pressurized, and then vehicle CNG is filled into the automobile CNG
storage bottle by the gas dispenser; it is also a place where other convenience
services may be provided.
2.1.25 Primary CNG filling station
Place where gas is taken from the natural gas pipeline out of the station, process
treated and pressurized, and then CNG is filled into the vehicle-mounted CNG storage
bottles group of secondary CNG filling station by the dispensing pole; it is also a place
where other convenience services may be provided.
2.1.35 CNG fixed storage facility
General term of ground-surface or underground CNG storage bottles (group) and
storage well installed at fixed positions.
2.1.36 CNG storage facility
General term of storage bottles (group), storage well and vehicle-mounted storage
bottles group.
2.1.37 Total volume of CNG storage facility
Sum of geometric volume of CNG fixed storage facilities and all the vehicle-mounted
CNG storage bottles (groups) at a full load or in an operation state.
2.1.38 Buried LNG tank
Horizontal LNG tank whose tank top is lower than the ground within 4m around,
buried underground by directly covering soil or filling sand in the tank.
2.1.39 Underground LNG tank
LNG tank hose tank top is 0.2m lower than the ground elevation within 4m around,
arranged in the tank.
2.1.40 Semi-underground LNG tank
LNG tank whose more than half tank shell is installed below ground ...