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GB/T 30718-2014 English PDF (GBT30718-2014)
GB/T 30718-2014 English PDF (GBT30718-2014)
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GB/T 30718-2014: Compressed hydrogen surface vehicle refueling connection devices
GB/T 30718-2014
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.010
F 19
Compressed hydrogen surface vehicle refueling connection
devices
(ISO 17268:2006, NEQ)
ISSUED ON: JUNE 09, 2014
IMPLEMENTED ON: OCTOBER 01, 2014
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 ... 4
4 General requirements ... 6
5 Nozzle ... 7
6 Standard receptacle size ... 8
7 Receptacle ... 9
8 Instructions ... 10
9 Marks ... 10
10 Design verification test procedures ... 11
Compressed hydrogen surface vehicle refueling connection
devices
1 Scope
This document specifies the definitions, design requirements, safety requirements, test
methods and inspection rules for compressed hydrogen surface vehicle refueling
connection devices. The compressed hydrogen surface vehicle refueling connection
devices described in this Standard consists of two parts: receptacle and its protective
cap (installed on the vehicle), and nozzle.
This Standard is applicable to compressed hydrogen surface vehicle refueling
connection devices where the working medium is compressed hydrogen, the working
pressure is 25 MPa and 35 MPa, and the ambient temperature is 15°C.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 24548-2009, Fuel cell electric vehicles - Terminology
GB/T 24549-2009, Fuel cell electric vehicles - Safety requirements
ISO 188, Rubber vulcanized - Accelerated ageing or heat resistance tests
ISO 1817, Rubber, vulcanized - Determination of the effect of liquids
ISO 9227, Corrosion tests in artificial environments - Salt spray tests
ISO 14687-2, Hydrogenfuel - Product specification
ISO 15501-2, Road vehicles - Compressed natural gas (CNG) fuel systems - Part 2:
Test methods
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 24548-
2009 as well as the followings apply.
nozzle and transfer fuel.
NOTE: This may also be called fuel import.
3.12 working pressure
The pressure when the system is operating when the gas temperature is 15°C.
NOTE: This determines the density of the gas when the hydrogen storage bottle is full.
4 General requirements
4.1 The nozzle and the receptacle of the compressed hydrogen surface vehicle designed
in accordance with this Standard shall meet safety, durability and maintainability
requirements.
4.2 The nozzle and the receptacle of the compressed hydrogen surface vehicle shall
have good matching and be manufactured according to engineering application
requirements.
4.3 The design of the nozzle and the receptacle of the compressed hydrogen surface
vehicle shall:
a) Reduce the possibility of mis-installation;
b) Resist displacement, twisting, bending or other damage;
c) Its installation shall maintain operational integrity under normal conditions of
operation and use.
4.4 The materials used for the nozzle and the receptacle of the compressed hydrogen
surface vehicle shall be compatible with compressed hydrogen within the design
pressure and temperature range (see 3.4, 5.9 and 7.7). The materials of all pressurized
and wetted components shall be compatible with deionized water. The compatibility of
non-metallic materials shall be tested by the component manufacturer or an independent
third party. There shall be a test report in compliance with ISO 1817. The nozzle,
receptacle and protective cap shall be made of non-fireable materials and have relevant
test reports.
4.5 Tools shall not be used when connecting and disconnecting the connector of the
compressed hydrogen surface vehicle.
4.6 The receptacle of the compressed hydrogen surface vehicle shall be installed on the
vehicle in accordance with the requirements of GB/T 24549-2009.
4.7 The protective cap shall prevent foreign contaminants from entering the receptacle,
but it shall not withstand pressure. There shall be appropriate frictional resistance to
prevent inadvertent shedding. The cap cover shall be attached to the receptacle or
vehicle.
5 Nozzle
5.1 Nozzles shall comply with the dimensional requirements of Chapter 6. The design
of the nozzle shall ensure that it can only be used in connection with the receptacle of
a higher working pressure level. Avoid connecting to receptacles with lower operating
pressure levels.
5.2 The nozzle shall be one of the three types described below:
a) Type A: This type of nozzle is suitable for devices where the filling hose is under
high pressure after the hydrogenation machine is shut down. Gas filling can only
be performed when the nozzle is correctly connected to the receptacle. This type
of nozzle is equipped with one or more integrated valves, which can be closed to
first stop gas filling and then safely vent the gas in the nozzle head before
unloading the nozzle. The operating mechanism shall ensure that the drain line is
open before the drain action is taken. Before removing the nozzle, the gas between
the nozzle stop valve and the air receptacle needle valve has been safely
discharged (see 10.2.4~10.2.7).
b) Type B: This type of nozzle is suitable for devices where the filling hose is under
high pressure after the hydrogenation machine is shut down. An independent
three-way valve is installed directly or indirectly before the receptacle of this type
of nozzle. This valve allows you to safely evacuate the remaining gas in the nozzle
head before removing it. Gas filling can only be performed when the nozzle is
correctly connected to the receptacle. Deflate the nozzle before removing it (see
10.2.4~10.2.7). The external three-way valve shall have markings indicating the
open, closed and bleed positions.
c) Type C: This type of nozzle is suitable for devices where the filling hose is
depressurized (less than or equal to 0.5 MPa) after the hydrogenation machine is
shut down (see 10.2.4~10.2.7). Gas filling can only be performed when the nozzle
is correctly connected to the receptacle. By receiving the correct connection
signal from the nozzle, the gas dispenser can control related functions.
In addition, according to the maintenance methods specified by the manufacturer, the
cycle life of the nozzle shall reach 100,000 times. The three-way valve used to activate
the Type B nozzle shall have the same cycle life as the nozzle.
5.3 The deflation and decompression process of the connection between all types of
nozzles and the receptacle shall be carried out before unloading the nozzle. The vented
gas shall be directed to a safe location through the exhaust pipe.
5.4 The connection between the nozzle and the gas dispenser hose shall not rely solely
receptacle shall be able to prevent the entry of fluid and foreign matter.
7.6 The receptacle shall be able to be securely mounted on the vehicle and comply with
the abnormal load test requirements of 10.7.
7.7 The working temperature range of the receptacle is -40℃~60℃.
8 Instructions
The manufacturer of the receptacle and nozzle shall provide concise and easy-to-
understand instructions, which ...
Get QUOTATION in 1-minute: Click GB/T 30718-2014
Historical versions: GB/T 30718-2014
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GB/T 30718-2014: Compressed hydrogen surface vehicle refueling connection devices
GB/T 30718-2014
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.010
F 19
Compressed hydrogen surface vehicle refueling connection
devices
(ISO 17268:2006, NEQ)
ISSUED ON: JUNE 09, 2014
IMPLEMENTED ON: OCTOBER 01, 2014
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 ... 4
4 General requirements ... 6
5 Nozzle ... 7
6 Standard receptacle size ... 8
7 Receptacle ... 9
8 Instructions ... 10
9 Marks ... 10
10 Design verification test procedures ... 11
Compressed hydrogen surface vehicle refueling connection
devices
1 Scope
This document specifies the definitions, design requirements, safety requirements, test
methods and inspection rules for compressed hydrogen surface vehicle refueling
connection devices. The compressed hydrogen surface vehicle refueling connection
devices described in this Standard consists of two parts: receptacle and its protective
cap (installed on the vehicle), and nozzle.
This Standard is applicable to compressed hydrogen surface vehicle refueling
connection devices where the working medium is compressed hydrogen, the working
pressure is 25 MPa and 35 MPa, and the ambient temperature is 15°C.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 24548-2009, Fuel cell electric vehicles - Terminology
GB/T 24549-2009, Fuel cell electric vehicles - Safety requirements
ISO 188, Rubber vulcanized - Accelerated ageing or heat resistance tests
ISO 1817, Rubber, vulcanized - Determination of the effect of liquids
ISO 9227, Corrosion tests in artificial environments - Salt spray tests
ISO 14687-2, Hydrogenfuel - Product specification
ISO 15501-2, Road vehicles - Compressed natural gas (CNG) fuel systems - Part 2:
Test methods
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 24548-
2009 as well as the followings apply.
nozzle and transfer fuel.
NOTE: This may also be called fuel import.
3.12 working pressure
The pressure when the system is operating when the gas temperature is 15°C.
NOTE: This determines the density of the gas when the hydrogen storage bottle is full.
4 General requirements
4.1 The nozzle and the receptacle of the compressed hydrogen surface vehicle designed
in accordance with this Standard shall meet safety, durability and maintainability
requirements.
4.2 The nozzle and the receptacle of the compressed hydrogen surface vehicle shall
have good matching and be manufactured according to engineering application
requirements.
4.3 The design of the nozzle and the receptacle of the compressed hydrogen surface
vehicle shall:
a) Reduce the possibility of mis-installation;
b) Resist displacement, twisting, bending or other damage;
c) Its installation shall maintain operational integrity under normal conditions of
operation and use.
4.4 The materials used for the nozzle and the receptacle of the compressed hydrogen
surface vehicle shall be compatible with compressed hydrogen within the design
pressure and temperature range (see 3.4, 5.9 and 7.7). The materials of all pressurized
and wetted components shall be compatible with deionized water. The compatibility of
non-metallic materials shall be tested by the component manufacturer or an independent
third party. There shall be a test report in compliance with ISO 1817. The nozzle,
receptacle and protective cap shall be made of non-fireable materials and have relevant
test reports.
4.5 Tools shall not be used when connecting and disconnecting the connector of the
compressed hydrogen surface vehicle.
4.6 The receptacle of the compressed hydrogen surface vehicle shall be installed on the
vehicle in accordance with the requirements of GB/T 24549-2009.
4.7 The protective cap shall prevent foreign contaminants from entering the receptacle,
but it shall not withstand pressure. There shall be appropriate frictional resistance to
prevent inadvertent shedding. The cap cover shall be attached to the receptacle or
vehicle.
5 Nozzle
5.1 Nozzles shall comply with the dimensional requirements of Chapter 6. The design
of the nozzle shall ensure that it can only be used in connection with the receptacle of
a higher working pressure level. Avoid connecting to receptacles with lower operating
pressure levels.
5.2 The nozzle shall be one of the three types described below:
a) Type A: This type of nozzle is suitable for devices where the filling hose is under
high pressure after the hydrogenation machine is shut down. Gas filling can only
be performed when the nozzle is correctly connected to the receptacle. This type
of nozzle is equipped with one or more integrated valves, which can be closed to
first stop gas filling and then safely vent the gas in the nozzle head before
unloading the nozzle. The operating mechanism shall ensure that the drain line is
open before the drain action is taken. Before removing the nozzle, the gas between
the nozzle stop valve and the air receptacle needle valve has been safely
discharged (see 10.2.4~10.2.7).
b) Type B: This type of nozzle is suitable for devices where the filling hose is under
high pressure after the hydrogenation machine is shut down. An independent
three-way valve is installed directly or indirectly before the receptacle of this type
of nozzle. This valve allows you to safely evacuate the remaining gas in the nozzle
head before removing it. Gas filling can only be performed when the nozzle is
correctly connected to the receptacle. Deflate the nozzle before removing it (see
10.2.4~10.2.7). The external three-way valve shall have markings indicating the
open, closed and bleed positions.
c) Type C: This type of nozzle is suitable for devices where the filling hose is
depressurized (less than or equal to 0.5 MPa) after the hydrogenation machine is
shut down (see 10.2.4~10.2.7). Gas filling can only be performed when the nozzle
is correctly connected to the receptacle. By receiving the correct connection
signal from the nozzle, the gas dispenser can control related functions.
In addition, according to the maintenance methods specified by the manufacturer, the
cycle life of the nozzle shall reach 100,000 times. The three-way valve used to activate
the Type B nozzle shall have the same cycle life as the nozzle.
5.3 The deflation and decompression process of the connection between all types of
nozzles and the receptacle shall be carried out before unloading the nozzle. The vented
gas shall be directed to a safe location through the exhaust pipe.
5.4 The connection between the nozzle and the gas dispenser hose shall not rely solely
receptacle shall be able to prevent the entry of fluid and foreign matter.
7.6 The receptacle shall be able to be securely mounted on the vehicle and comply with
the abnormal load test requirements of 10.7.
7.7 The working temperature range of the receptacle is -40℃~60℃.
8 Instructions
The manufacturer of the receptacle and nozzle shall provide concise and easy-to-
understand instructions, which ...
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