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GB/T 36126-2018 (GBT 36126-2018)

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BASIC DATA
Standard ID GB/T 36126-2018 (GB/T36126-2018)
Description (Translated English) Liquefied natural gas dispenser for vehicle
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard A53
Classification of International Standard 17.120
Word Count Estimation 23,230
Date of Issue 2018-05-14
Date of Implementation 2018-12-01
Drafting Organization China Testing Technology Research Institute, Chongqing Metrology Quality Testing Institute, Chengdu Huaqi Houpu Electromechanical Equipment Co., Ltd., Sichuan Zhongyao Flow Technology Co., Ltd., Emerson Process Control Co., Ltd., Sichuan Jinxing Clean Energy Equipment Co., Ltd., Shenyang Metrology Testing Institute, Nanjing Xinye Electric Engineering Co., Ltd., Chengdu Shenliang Lingtai Electromechanical Technology Co., Ltd., Token Hengshan Technology (Guangzhou) Co., Ltd., Chongqing Houhai Energy Equipment Manufacturing Co., Ltd., Chongqing Juchuang Measuring Equipment Co., Ltd., Xinjiang Jinkangda Energy Equipment Co., Ltd.
Administrative Organization National Automotive Standardization Technical Committee (SAC/TC 114)
Regulation (derived from) National Standards Announcement No. 6 of 2018
Proposing organization Ministry of Industry and Information Technology of the People's Republic of China
Issuing agency(ies) State Administration of Markets and China National Standardization Administration


GB/T 36126-2018: PDF in English (GBT 36126-2018)
GB/T 36126-2018
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 17.120
A 53
Liquefied natural gas dispenser for vehicle
ISSUED ON. MAY 14, 2018
IMPLEMENTED ON. DECEMBER 1, 2018
Issued by. State Administration for Market Regulation;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3 
Introduction ... 4 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 7 
4 Technical requirements ... 9 
5 Test methods ... 17 
6 Inspection rules ... 28 
7 Packaging, transportation, and storage ... 30 
Appendix A (Informative) Working principle of liquefied natural gas dispenser
... 32 
Appendix B (Normative) Cryogenic liquids flow standard facilities by weighing
method ... 34 
Appendix C (Normative) Cryogenic liquids flow standard facilities by master
meter method ... 35 
Liquefied natural gas dispenser for vehicle
1 Scope
This Standard specifies the scope, normative references, terms and definitions,
technical requirements, test methods, inspection rules, packaging,
transportation, and storage of liquefied natural gas dispenser for vehicle
(hereinafter known as dispenser for short).
This Standard applies to the design, manufacture, and acceptance of liquefied
natural gas dispenser for vehicle.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the versions with the dates indicated are
applicable to this document. For the undated references, the latest version
(including all the amendments) are applicable to this document.
GB 150.4 Pressure Vessels - Part 4. Fabrication, inspection and testing, and
acceptance
GB/T 191 Packaging - Pictorial Marking for Handling of Goods
GB/T 2423.1 Environmental testing for electric and electronic products - Part
2. Test methods - Tests A. Cold
GB/T 2423.2 Environmental testing for electric and electronic products - Part
2. Test methods - Tests B. Dry heat
GB/T 2423.4 Environmental testing for electric and electronic products - Part
2. Test method - Test Db. Damp heat, cyclic (12 h+12 h cycle)
GB 3836.1 Explosive atmospheres - Part 1. Equipment - General
requirements
GB 3836.2 Explosive atmospheres - Part 2. Equipment protection by
flameproof enclosures d
GB 3836.3 Explosive atmospheres - Part 3. Equipment protection by
increased safety “e”
GB 3836.4 Explosive atmospheres - Part 4. Equipment protection by intrinsic
safety i
GB 3836.9 Explosive atmospheres - Part 9. Equipment protection by type of
protection “m”
GB 3836.11 Explosive atmospheres - Part 11. Equipment protection by
flameproof enclosures “d” - Method of test for ascertainment of maximum
experimental safe gap
GB/T 4798.2 Environmental conditions existing in the application of electric
and electronic products - Section 2. Transportation
GB 4943.1 Information technology equipment - Safety - Part 1. General
requirements
GB/T 13384 General specifications for packing of mechanical and electrical
product
GB/T 17626.2 Electromagnetic compatibility - Testing and measurement
techniques - Electrostatic discharge immunity test
GB/T 17626.3 Electromagnetic compatibility - Testing and measurement
techniques - Radiated, radio-frequency, electromagnetic field immunity test
GB/T 17626.4 Electromagnetic compatibility - Testing and measurement
techniques - Electrical fast transient/burst immunity test
GB/T 17626.5 Electromagnetic compatibility - Testing and measurement
techniques - Surge immunity test
GB/T 17626.11 Electromagnetic compatibility - Testing and measurement
techniques - Voltage dips, short interruptions and voltage variations immunity
tests
GB/T 18442.1 Static vacuum insulated cryogenic pressure vessel - Part 1.
General requirements
GB/T 25986 Filling device of natural gas vehicles
GB 50058 Code for design of electrical installations in explosive
atmospheres
GB 50156 Code for design and construction of automobile gasoline and gas
filling station
GJB 2253A Safe application rules for gaseous nitrogen and liquid nitrogen
cryogenic liquefied gas (such as liquid nitrogen or LNG), as a test medium,
through a master flowmeter and a flowmeter under test at the same interval.
The facilities generally consist of a fluid source, a test piping system, a master
flowmeter, a flow regulating valve, and ancillary equipment, etc..
4 Technical requirements
4.1 General
The dispenser shall generally meet.
a) All equipment and piping components in the dispenser which are in contact
with LNG shall be of a material that conforms to the LNG cryogenic piping
design code.
b) The design pressure of all equipment and piping components in the
dispenser shall comply with the relevant requirements of GB 50156.
4.2 Basic functions
4.2.1 Metering and pricing functions
The metering and pricing functions of dispenser shall meet.
a) The dispenser shall have a metering function. The fueling amount of
dispenser is measured by mass. The unit of mass is kilograms (kg). The
unit of flow is kilograms per minute (kg/min).
b) The dispenser shall have a pricing function. The unit of payment amount
is yuan. The unit of unit price is yuan per kilogram (yuan/kg).
4.2.2 Value indication function
The value indication function of dispenser shall meet.
a) The dispenser shall have a value indication function. The indication
reading shall be correct, easy to read, and clear.
b) The minimum quality variable of dispenser is expressed as 1×10n, 2×10n,
or 5 ×10n, where n is a positive integer, a negative integer, or zero.
c) When there are more than 2 display indication values, the display of each
indication value shall be consistent. The indication value shall be
continuously displayed during the fueling process.
4.2.3 Zero return function
be changed at will.
4.2.8 Anti-overfill function
In order to prevent the vessel from being overfilled, during the fueling process,
the fueling and reclaiming functions of dispenser shall be avoided operating
simultaneously.
4.2.9 Auxiliary functions
The auxiliary functions of dispenser include. IC card information reading-writing,
data management, and network extension, etc..
4.3 Marking and identification
The marking and identification of dispenser shall meet.
a) The marking and identification of dispenser shall be clear and
distinguishable, solid and reliable.
b) There shall be obvious safety and operation identifications on the
dispenser.
c) For dispensers with two fueling nozzles and above, the fueling nozzle shall
have a corresponding mark.
d) The nameplate of dispenser generally indicates the following.
manufacturer’s name (trademark), product name and model specification,
date of manufacture, exit-factory number, marking and number of license
for manufacture of measuring instrument (Note. The new product
applicant organization shall reserve a place for the corresponding content
on prototype nameplate design), applicable medium, flow range, accuracy
level or maximum allowable error, applicable ambient temperature range,
maximum working pressure, supply voltage, explosion-proof sign, and
explosion-proof conformity certificate number, etc..
4.4 Appearance and structure
The appearance and structure of dispenser shall meet.
a) There shall be no peeling, falling off, rust, etc. on the surface of dispenser.
b) The nameplate and marking of dispenser shall be clear, complete, and
accurate.
c) The fasteners of dispenser shall be firmly connected without looseness.
The connectors shall be in good contact. The connecting wires shall be
the on-off operation of corresponding valve.
c) The emergency shutdown device shall be located in the obvious position
of dispenser. Its function shall be identified. There shall be protective
measures preventing malfunction.
d) After the emergency shutdown device is triggered, it shall be manually
confirmed before resetting.
4.9 Breakaway protection device
The breakaway protection device of dispenser shall meet.
a) The fueling hose of dispenser shall be equipped with a breakaway
protection device, which shall be disconnected into two sections under the
rated breakaway force (600 N~900 N).
b) The reclaiming hose of dispenser shall be equipped with a breakaway
protection device, which shall be disconnected into two sections under the
rated breakaway force (400 N~600 N).
c) The breakaway protection device for larger breakaway force used in
special occasions shall be marked with its rated breakaway force on the
surface and in the specification.
4.10 Safety protection device
The safety protection device of dispenser shall meet.
a) The dispenser shall be equipped with safety protection devices such as
safety valves.
b) Safety protection devices such as safety valves shall obtain the test
certificate or identification issued by the safety valve testing agency with
corresponding qualifications.
4.11 Power-down pro......