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GB/T 26980-2011 English PDF (GBT26980-2011)

GB/T 26980-2011 English PDF (GBT26980-2011)

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GB/T 26980-2011: Liquefied natural gas (LNG) vehicular fueling systems code

This Standard specifies the reasonable protection measures for the prevention of fire and explosion in the fueling facilities of liquefied natural gas (LNG) vehicular fueling system. This Standard apply to the design, installation, operation and maintenance of various types of fueling facilities, with a container capacity of not more than 265 m3, of liquefied natural gas (LNG) vehicular fueling system and LNG-CNG (compressed natural gas) conversion facilities.
GB/T 26980-2011
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 75.060
E 24
Liquefied natural gas (LNG)
vehicular fueling systems code
ISSUED ON. SEPTEMBER 29, 2011
IMPLEMENTED ON. JANUARY 1, 2012
Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 5
4 LNG fueling facilities ... 10
5 Installation requirements for containers... 21
6 Fire protection, safety and security ... 31
Annex A (informative) Comparison between the clause number of this Standard and the clause number of NFPA 52.2006 ... 34
Annex B (informative) Technical differences between this Standard and NFPA 52.2006 and their causes ... 35
Bibliography ... 37
Foreword
This Standard is drafted in accordance with the rules given in GB/T1.1-2009. This Standard uses the re-drafting method to modify USA National Fire Protection Association NFPA 52 ?€?Vehicle Fuel System Specification?€?, English version of 2006. For the purpose of comparison, a list of the comparison between the clause of this Standard and the clause of NFPA 52.2006 is given in Annex A; a list of the technical differences and between the clause of this Standard and the clause of NFPA 52.2006 and their causes is listed in Annex B.
For ease of use, this Standard has also made the following modifications. a) MODIFY the name;
b) DELETE the clauses not related to LNG and Annexes A to E, mainly use the clauses related to LNG fueling facilities and relevant clauses in NFPA 52.2006; c) In normative reverences, use China?€?s national standard to replace relevant foreign standards.
This Standard is proposed by National Technical Committee on Petroleum of Standardization Administration of China (SAC/TC 355).
Responsible drafting organizations of this Standard. CNOOC Gas & Electricity Group Co., Ltd., CNOOC Deep Combustion Energy Co., Ltd.
Participating drafting organizations of this Standard. Shanghai Jiaotong University, Shaanxi Gas Design Institute.
Main drafters of this Standard. Ma Jingzhu, Yang Qusheng, Xia Fang, Xing Yun, Lin Wensheng, Guo Zonghua, Lu Xuesheng, Li Kaiguo, Lai Yuankai.
Liquefied natural gas (LNG)
vehicular fueling systems code
1 Scope
This Standard specifies the reasonable protection measures for the prevention of fire and explosion in the fueling facilities of liquefied natural gas (LNG) vehicular fueling system.
This Standard apply to the design, installation, operation and maintenance of various types of fueling facilities, with a container capacity of not more than 265 m3, of liquefied natural gas (LNG) vehicular fueling system and LNG-CNG (compressed natural gas) conversion facilities.
This Standard does not apply to facilities, equipment and structural devices that have been built or approved for construction and installation prior to the entry into force of this Standard, unless otherwise stated.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this document. For undated references, the latest edition (including all modifications) applies to this document. GB 150-1998 Steel pressure vessels
GB 8624-2006 Classification for burning behavior of building materials and products GB/T 8923-1988 Rust grades and preparation grades of steel surfaces before application of paints and related products
GB 9448-1999 Safety in welding and cutting
GB 12955-2008 Fire resistant door sets
GB 16809-2008 Fire resistant windows
GB 18442-2001 Cryo-insulation pressure vessels
GB/T 20368-2006 Production, storage and handling of liquefied natural gas (LNG) GB/T 20801-2006 Pressure piping code
GB 50016-2006 Code of design on building fire protection and prevention GB 50058-1992 Electrical installations design code for explosive atmospheres and fire hazard
GB 50191-1993 Design code for anti-seismic of special structures
GB 50235-1997 Code for construction and acceptance of industrial metallic piping JB/T 4711-2003 Coating and packing for pressure vessels transport
JB/T 6697-2006 Basic specifications of electric equipment for motor vehicles and internal-combustion engine
ISO 15500 Compressed natural gas (CNG) fuel system components
3 Terms and definitions
For the purpose of this document, the following terms and definitions apply. 3.1
labeled
Equipment or materials to which has been attached a label, symbol, or other identifying mark of an organization, which is acceptable to the authority having jurisdiction and concerned with product evaluation, that maintains periodic inspection of production of labeled equipment or materials, AND the labeling indicates compliance with appropriate standards or performance in a specified manner.
3.2
listed
Equipment, materials, or services included in a list published by an organization, which is acceptable to the authority having jurisdiction and concerned with evaluation of products or services, that maintains periodic inspection of production of listed equipment or materials or periodic evaluation of services, and whose listing states that either the equipment, material, or service meets appropriate designated standards or has been tested and found suitable for a specified purpose.
3.3
building
The operating pressure set in a LNG equipment or a container during normal use. 3.11
dike
A structure used to establish an impounding area.
3.12
emergency shutdown device (ESD)
A device that disconnects LNG from one point to the rest from either local or remote locations.
3.13
fail-safe
A design feature that provides for the maintenance of safe operating conditions in the event of a malfunction of control devices or an interruption of an energy source. 3.14
fixed liquid level device
A device that indicates when the container is filled to its maximum permitted filling volume.
3.15
fuel dispenser system
All the pumps, meters, piping, hose and controls used for the delivery of LNG to, and the removal of vapor from, a vehicle.
3.16
fueling connector
A device connects to the vehicular fueling system through the fueling hose or the fueling arm, including a shut-off valve for delivering LNG or vaporized gas. 3.17
fueling facility
A device delivers LNG as an engine fuel to a vehicle.
3.25
noncombustible material
A material that, in the form in which it is used and under the conditions anticipated, does not meet the definition of combustible material.
3.26
point of transfer
A connector for LNG transferring between the containers (bottles).
3.27
pressure relief device
A device designed to open to prevent a rise of internal pressure in excess of a specified value due to emergency or abnormal conditions. The device can be of the reclosing or other type, such as one having a rupture disk or fusible plug that requires replacement after each use.
3.28
vaporizer
A device other than a container that receives LNG in liquid form and adds sufficient heat to convert the liquid to a gaseous state, or a device used to add heat to LNG. 3.29
ambient vaporizer
A vaporizer that derives heat for vaporization from a naturally occurring heat source such as the atmosphere, seawater or geothermal waters. If the naturally occurring heat source is separated from the actual vaporizing heat exchanger and a controllable heat transport medium is used between the heat source and the vaporizing exchanger, the vaporizer shall be considered to be a remote heated vaporizer.
3.30
heated vaporizer
A vaporizer that derives heat for vaporization from the combustion of fuel, electric power or waste heat, such as from boilers or internal combustion engines. 3.31
structurally sound, suitable for the service, and otherwise in compliance with this Standard.
4.2.1.6 LNG fueling sites utilizing or fueling saturated LNG with personnel in the immediate vicinity shall provide barrier walls or equal protection in order to protect the fueling operator and vehicle. All facility piping other than the fueling hose to the vehicle shall be behind a barrier, which in the case of an equipment or device malfunction deflects the saturated LNG upward.
4.2.2 Siting
4.2.2.1 LNG containers and their associated equipment shall not be located where exposed to failure of overhead electric power lines operating over 380 V. Vaulted or underground installations shall be deemed to provide engineered protection from overhead power lines.
4.2.2.2 If other combustible or hazardous liquids can encroach on the LNG fueling facility, protection facilities shall be provided.
4.2.2.3 Fired equipment shall be located...

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