NB/T 47052-2016 Simple pressure vessels English Translation
1 Scope
1.1 This standard specifies the construction requirements for the type and materials, design, manufacturing, inspection and acceptance of simple pressure vessels (hereinafter referred to as "vessels").
1.2 This standard is applicable to mass-produced vessels that meet the following conditions simultaneously:
a) The design pressure is less than or equal to 1.6 MPa;
b) The design temperature is greater than or equal to -20°C and the maximum working temperature is less than or equal to 150°C;
c) The volume is less than or equal to 1.0 m3;
d) The product of working pressure and volume is less than or equal to 1.0 MPa·m3;
e) The medium is air, nitrogen, carbon dioxide, inert gas, water vapor obtained by evaporation of medical distilled water, or a mixed gas of the above gas (vapor); the medium is allowed to contain other components such as oil that are insufficient to change the characteristics of the medium, but its flash point or ignition point shall be more than 30°C higher than the maximum working temperature of the vessels and do not affect the compatibility with the material;
f) The structure meets the requirements of 4.1.1.
1.3 The following products are not within the scope of this standard:
a) Vessels used by military equipment, nuclear installations, aerospace vehicles, offshore installations and ships;
b) Non-independent pressure-bearing parts on the machine (such as compressor cylinder, etc.);
c) Fire extinguisher;
d) Quick-opening vessels;
e) Mobile vessels;
f) Vessels to be designed for fatigue analysis;
g) Vessels subjected to direct flame heating;
h) Vacuum vessels;
i) Hazardous chemical packaging.
1.4 Boundary scope of vessels
1.4.1 When the vessel is connected to an external pipe:
a) The groove face of the first girth joint of welded connection;
b) The end face of the first threaded joint of threaded connection;
c) The first flange sealing surface of flange connection;
d) The first sealing surface of special connecting piece or tube fittings connection.
1.4.2 Pressure head, flat covers and fasteners for connected pipes, handholes, etc.
1.4.3 Welded joints between non-pressure parts and pressure parts.
1.4.4 Non-pressure parts directly connected to the vessels, e.g. support, etc.
1.4.5 Overpressure relief device directly connected to the vessel.
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 150.1 Pressure vessels - Part 1: General requirements
GB 150.2-2011 Pressure vessels - Part 2: Materials
GB 150.3 Pressure vessels - Part 3: Design
GB/T 699 Quality carbon structure steels
GB 713 Steel plates for boilers and pressure vessels
GB 912 Hot-rolled sheets and strips of carbon structural steels and high strength low alloy structural steels
GB/T 985.1 Recommended joint preparation for gas welding, manual metal arc welding, gas-shield arc welding and beam welding
GB/T 985.2 Recommended joint preparation for submerged arc welding
GB/T 1220 Stainless steel bars
GB/T 3274 Hot-rolled plates, sheets and strips of carbon structural steels and high strength low alloy structural steels
GB/T 8163 Seamless steel pipes for liquid service
GB 9948 Seamless steel tubes for petroleum cracking
GB/T 12243 Spring loaded safety valves
GB 13296 Seamless stainless steel tubes for boiler and heat exchanger
GB/T 14976 Seamless stainless steel pipes for fluid transport
GB 24511 Stainless steel plate, sheet and strip for pressure equipment
GB/T 25198 Heads for pressure vessels
NB/T 47008 Carbon and alloy steel forgings for pressure equipment
NB/T 47010 Stainless and heat-resisting steel forgings for pressure equipment
NB/T 47013.2 Nondestructive testing of pressure equipments - Part 2: Radiographic testing
NB/T 47014 Welding procedure qualification for pressure equipments
JB/T 4711 Coating and packing for pressure vessels transport
JB/T 4736 Reinforcing pad
JB/T 6441 Safety valves for compressor
HG/T 20592~20635 Steel pipe flanges, gaskets and bolting
TSG 21 Supervision regulation on safety technology for stationary pressure vessel
3 Terms and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in GB 150.1 and the following apply.
3.1.1
mechanized welding
mechanized welding including automatic welding and motorized welding, among which automatic welding refers to welding completed by the welding machine automatically adjusting and controlling process parameters; motorized welding refers to the welding process completed by a welder operating a welding machine to adjust and control process parameters
3.1.2
Contents
Foreword i
1 Scope
2 Normative references
3 Terms and symbols
4 Product type and product type code
5 General requirements
6 Materials
7 Design
8 Manufacturing, inspection, and acceptance
Annex A (Normative) Compliance declaration and revision of the standard
Annex B (Informative) Type codes of products
Annex C (Informative) Common welded joint structures
