NB/T 10354-2019 English PDF (NB/T10354-2019)

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NB/T 10354-2019: Tube trailer
NB/T 10354-2019
NB
ENERGY INDUSTRY STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.160
T 59
Tube trailer
ISSUED ON: DECEMBER 30, 2019
IMPLEMENTED ON: JULY 01, 2020
Issued by: National Energy Administration
Table of Contents
Foreword ... 5
1 Scope ... 6
2 Normative references ... 6
3 Terms and definitions ... 9
4 Qualifications and responsibilities ... 10
5 Materials ... 12
6 Design ... 17
7 Safety accessories, instruments, loading and unloading accessories ... 30
8 Manufacturing ... 35
9 Test methods ... 43
10 Inspection rules ... 46
11 Signs, markings ... 47
12 Exit-factory documents ... 48
13 Storage and transportation ... 49
Appendix A (Normative) Special technical requirements for compressed natural gas
hydraulic tube trailers ... 51
Appendix B (Normative) Risk assessment report ... 55
Appendix C (Normative) Calculation of wall thickness of loading and unloading pipeline
... 57
Tube trailer
1 Scope
1.1 This standard specifies the requirements for materials, design, manufacturing, test
methods, inspection rules, sign and marking, exit-factory documents, storage and
transportation of tube trailers.
1.2 This standard applies to tube trailers in which the following large-volume steel
seamless gas cylinders (hereinafter referred to as gas cylinders) are permanently
connected to the shaped chassis or semi-trailer running mechanism:
a) The operating environment temperature is -40 °C ~ 60 °C;
b) The nominal working pressure of the gas cylinder is 10 MPa ~ 30 MPa; the
nominal working pressure of the gas cylinder filled with oxygen is not more than
20 MPa;
c) The nominal water volume of a single gas cylinder is 1000 L ~ 4200 L;
d) The filling medium is natural gas, hydrogen, oxygen, air, nitrogen, argon, helium,
neon, krypton and other compressed gases.
1.3 Compressed natural gas hydraulic tube trailers shall also comply with the provisions
of Appendix A.
1.4 This standard does not apply to the following tube trailers:
a) Filled with liquefied gas, dissolved gas, extremely toxic media;
b) The gas cylinder is a filament-wound gas cylinder.
2 Normative references
The following documents are essential to the application of this document. For the dated
documents, only the versions with the dates indicated are applicable to this document;
for the undated documents, only the latest version (including all the amendments) is
applicable to this standard.
GB 190 Packing symbol of dangerous goods
GB/T 567 (all parts) Rupture disc safety device
written form. The design conditions shall at least include the following contents:
a) Working conditions, including ambient temperature, working temperature,
working pressure, loading and unloading conditions and methods, loading and
unloading pressure, filling frequency (times/year), possible additional loads, etc.;
b) Filling medium, including the number of the medium (UN number or CAS
number), name, category (item), components, physical and chemical properties,
hazards, harmful impurity content, corresponding chemical safety data sheet
(SDS) etc.;
c) Nominal water volume and total water volume of a single cylinder;
d) Expected service life;
e) Finalized chassis or towing vehicle model and necessary technical parameters;
f) Other necessary conditions required for design (such as gas cylinder surface
treatment, moisture content and leakage rate detection requirements of the
pressure-bearing system, etc.).
4.2.2 Design organization
4.2.2.1 The design organization shall be responsible for the design quality of the tube
trailer.
4.2.2.2 The use management of special design seals shall meet the requirements of TSG
R0005.
4.2.2.3 The design organization shall save all design documents, within the design
service life of its product.
4.2.3 Manufacturer
4.2.3.1 The manufacturer shall be responsible for the manufacturing quality of tube
trailers.
4.2.3.2 The gas cylinder manufacturer shall manufacture gas cylinders, in accordance
with the design documents that have passed the gas cylinder design document appraisal
and type test; it shall be responsible for its manufacturing quality.
4.2.3.3 The manufacturer shall manufacture according to the requirements of the design
documents. When the original design documents need to be modified, written
certification documents agreeing to the modification shall be obtained from the original
design organization; meanwhile detailed records of the modified parts shall be made.
4.2.3.4 Before manufacturing tube trailers, the manufacturer shall formulate a quality
plan, which includes at least pressure components such as gas cylinders and pipelines,
purchased or outsourced parts, manufacturing process control points, inspection tests,
qualification requirements, etc.
4.2.3.5 During the manufacturing process and after completion, the manufacturer shall
conduct various inspections and tests, in accordance with the provisions of this standard,
design drawings, design documents, quality plans; issue corresponding reports; be
responsible for the correctness, authenticity, completeness of the reports.
4.2.3.6 After each tube trailer passes the inspection, the manufacturer shall issue a
product certificate.
4.2.3.7 The manufacturer shall accept the supervision and inspection of the tube trailer
manufacturing process by the special equipment inspection and testing authority; obtain
its special equipment supervision and inspection certificate.
4.2.3.8 Tube trailers shall pass type tests and related tests by testing institutions
confirmed or approved by the automotive industry authority of the State Council
according to model type; obtain corresponding certification documents.
4.2.3.9 The manufacturer shall keep at least the following technical documents for
reference, during the design service life of each tube trailer it manufactures:
a) Manufacturing process drawing or manufacturing process card;
b) Welding process documents;
c) Records of inspection and test items specified in the standards;
d) Check, inspection, test records during the manufacturing process and after
completion;
e) Exit-factory documents (in compliance with the provisions of Chapter 12);
f) Original design documents.
5 Materials
5.1 General requirements
5.1.1 The selection of materials shall consider their mechanical properties, bending
properties, physical properties, process properties. The materials in contact with the
filling medium shall be compatible.
5.1.2 The performance, quality, specifications, markings of materials shall comply with
the national standards or industry standards of the corresponding materials.
5.1.3 The materials to be welded shall have good welding performance.
5.2.1.6 Steel pipes shall be subjected to longitudinal and transverse ultrasonic testing
one by one, in accordance with the provisions of NB/T 47013.3-2015. The qualified
quality level shall not be lower than level I.
5.2.2 End plug
5.2.2.1 The end plug shall be forged. The forgings selected from 30CrMo and 35CrMo
shall comply with the provisions of NB/T 47008-2017; their level shall not be lower
than level III. The forgings selected from austenitic stainless steels such as S30403,
S30408, S31603, S31608 shall comply with the provisions of NB/T 47010-2017; their
level shall not be lower than level III.
5.2.2.2 The hardness of 230CrMo and 35CrMo forgings, after quenching and tempering
heat treatment, shall be lower than the hardness of gas cylinders after heat treatment.
The average impact energy absorption (KV2) of its three standard impact specimens
after -40 °C Charpy impact test shall not be less than 41J; the impact absorbed energy
value of one specimen is allowed to be less than 41J but not less than 29J.
5.3 Pipeline
5.3.1 Loading and unloading pipelines
5.3.1.1 Pipes shall be made of austenitic stainless steel seamless steel pipes, such as
S30403, S30408, S31603, S31608, etc. They shall comply with the provisions of GB/T
14976. The hydrogen filling medium shall use austenitic stainless steel seamless steel
pipes, such as S31603 and S31608.
5.3.1.2 Pipe fittings shall be made of austenitic stainless steel forgings, such as S30403,
S30408, S31603, S31608, etc. They shall comply with the provisions of NB/T 47010-
2017. Their level shall not be lower than level III. The hydrogen filling medium shall
use austenitic stainless steel forgings, such as S31603 and S31608.
5.3.2 Sewage pipe
Sewage pipes shall be made of austenitic stainless steel seamless steel pipes, such as
S30403, S30408, S31603, S31608, etc. They shall comply with the provisions of GB/T
14976.
5.3.3 Drain pipe
The drain pipe shall be made of austenitic stainless steel pipes, such as S30403, S30408,
S31603, S31608, etc. They shall comply with relevant standards, such as GB/T 14976
or GB/T 12771.
5.3.4 Pneumatic pipeline
Pneumatic pipelines shall be made of non-metallic materials, that meet the usage
requirements. Their nominal pressure shall not be less than 0.8 MPa and comply with
the requirements of the corresponding standards. The selection of metal materials shall
comply with the provisions of 5.3.3.
5.4 Frame
5.4.1 The materials used for main stress-bearing components, such as corner columns,
end beams, side beams shall have good weldability, sufficient strength, toughness.
5.4.2 The materials used for the main stress-bearing components, such as corner
columns, end beams, side beams shall pass the Charpy impact test at no higher than -
20 °C, wherein the average impact absorbed energy (KV2) of the three standard impact
specimens shall be no less than 27J, the impact absorbed energy value of one specimen
is allowed to be less than 27J but not less than 19J.
5.5 Support end plates and connectors
5.5.1 The materials used for supporting end plates and connectors shall have sufficient
strength, stiffness, toughness.
5.5.2 The steel plate used to support the end plate shall comply with the provisions of
the corresponding material standards. The steel plate shall pass a Charpy impact test at
not higher than -20 °C, wherein the average impact absorbed energy (KV2) of its three
standard impact specimens shall not be less than 27J, the impact absorbed energy value
of one specimen is allowed to be less than 27J but not less than 19J.
5.5.3 The material for the tie rod shall be 20 or 35 steel, which shall comply with the
provisions of GB/T 699.
5.5.4 The flange used to fix the gas cylinder shall be made of forgings or steel plates.
When selecting a steel plate, it shall be subject to a Charpy impact test at no higher than
-20 °C. The average impact absorbed energy (KV2) of its three standard impact
specimens shall not be less than 27J. The impact absorbed energy value of one specimen
is allowed to be less than 27J but not less than 19J. When selecting forging materials, it
shall comply with the provisions of NB/T 47008; the forging level shall not be lower
than level II, meanwhile it shall select the 16Mn and 35 steel.
5.5.5 The materials used for drawstrings, hoops, tie rods, etc. shall have good
weldability, sufficient strength, toughness.
5.6 Sealing materials
5.6.1 The allowable operating temperature and sealing performance of the sealing
material shall be able to meet the requirements for the use of tube trailers.
5.6.2 The service life of the sealing material shall meet the requirements of the regular
inspection cycle of the tube trailer.
standards or industry standards; have quality certification documents or product
certificates.
5.9.2 The type-finalized chassis shall be a type-finalized product, which is recognized
by the automotive industry authority of the State Council. Meanwhile it shall have
corresponding technical information and quality certification documents. When
choosing an imported chassis, it shall comply with relevant national provisions and
have corresponding technical information and quality certification documents.
5.9.3 The running mechanism of the semi-trailer shall comply with the provisions of
GB/T 23336. It shall have corresponding technical documents and quality certification
documents.
5.9.4 Corner fittings shall comply with the provisions of GB/T 1835. After -40 °C
Charpy impact test, the average impact absorbed energy (KV2) of the three impact
specimens shall not be less than 21J; the impact energy absorbed of one of the test
specimens is allowed to be less than 21J but not less than 15J.
5.9.5 Portable fire extinguishers shall comply with the provisions of GB 4351 (all parts);
they shall be within the validity period.
5.9.6 The bolts and nuts, which are used to connect the supporting end plates and
connecting flanges, shall be commercial level or special level fasteners. When
commercial level carbon steel or low alloy steel is selected, the strength of the bolts
shall not be lower than level 8.8; the strength of the nuts shall not be lower than level
8.
5.9.7 Valves and instruments shall comply with the requirements of corresponding
standards.
6 Design
6.1 General requirements
6.1.1 In addition to complying with the requirements of this standard, the design of tube
trailers shall also comply with relevant laws and regulations, safety technical
specifications, national standards, industry standards.
6.1.2 The structural design of the tube trailer, the connection between the gas cylinder
and the running mechanism or the type-finalized chassis, as well as the layout of
pipelines, safety accessories, instruments, loading and unloading accessories shall be safe
and reliable; meanwhile meet the usage requirements.
6.1.3 The same tube trailer shall use gas cylinders of the same material, nominal
working pressure, nominal diameter, nominal water volume.
6.1.4 The outer dimensions, axle load, mass limits of tube trailers shall comply with the
provisions of GB 1589. The axle load distribution shall be reasonable; the axle load and
total mass shall not be greater than the allowable limits of the type-finalized chassis or
semi-trail...