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...