NB/T 47041-2014 in English

1 Scope

1.1 This Standard specifies design, fabrication, inspection and acceptance requirements for metallic vertical vessels.
1.2 The application scope of this Standard is as follows:
a) The design pressure of steel vertical vessels supported by skirt is no greater than 35 MPa and the design pressure of vertical vessels made from other metallic materials shall be in accordance with the requirements of relevant standards;
b) The design temperature range falls in the allowable application temperature range of metallic materials;
c) Skirt self-support metallic vertical vessel with the ratio of height H and average diameter D greater than 5.
1.3 Skirt self-support metallic vertical vessel with the ratio of height H and average diameter D no greater than 5 may be designed by reference to Appendix E.
1.4 This Standard is not applicable to the following vertical vessels:
a) Vertical vessel accompanied with bracing device;
b) Coupled in-line vessel or vessel group integrated by operating platform;
c) Vertical vessel with jacket;
d) Cast iron and nonmetallic vertical vessel.

2 Normative References

The following documents for the application of this document are essential. For any dated references, just the dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document.
GB 150.1 Pressure Vessels - Part 1: General Requirements
GB 150.2 Pressure Vessels Part 2: Materials
GB 150.3 Pressure Vessels Part 3: Design
GB 150.4 Pressure Vessels - Part 4: Fabrication, Inspection and Testing, and Acceptance
GB/T 700 Carbon Structural Steels
GB/T 1591 High Strength Low Alloy Structural Steels
GB/T 26929 Terminology for Pressure Vessels
GB 50009 (Edition 2006) Load Code for the Design of Building Structures
GB 50011-2010 Code for Seismic Design of Buildings
JB/T 4730.1 Nondestructive Testing of Pressure Equipments - Part 1: General Requirements
JB/T 4730.2 Nondestructive Testing of Pressure Equipments - Part 2: Radiographic Testing
JB/T 4730.3 Nondestructive Testing of Pressure Equipments - Part 2: Ultrasonic Testing
JB/T 4730.4 Nondestructive Testing of Pressure Equipments - Part 4: Magnetic Particle Testing
JB/T 4730.5 Nondestructive Testing of Pressure Equipments - Part 5: Penetrant Testing
JB/T 4730.6 Nondestructive Testing of Pressure Equipments - Part 6: Eddy Current Testing
JB/T 4734 Aluminium Welded Vessels
JB/T 4745 Titanium Welded Vessels
JB/T 4755 Copper Pressure Vessels
JB/T 4756 Nickel and Nickel Alloy Pressure Vessels
NB/T 47002 (All Parts) Explosion Welded Clad Plate for Pressure Vessels
NB/T 47011 Zirconium Pressure Vessels
TSG R0004 Supervision Regulation on Safety Technology for Stationary Pressure Vessel

3 Terms and Definitions

For the purposes of this Standard, the following terms and definitions in GB/T 26929 as well as the following ones apply.
3.1 Pressure
The force directly acting on the unit surface area of vertical vessel. Unless otherwise stated, pressure refers to the gauge pressure in this Standard.
3.2 Operating Pressure
It refers to the possible maximum pressure on the vertical vessel top under normal operation condition.
3.3 Design Pressure

Foreword I
Introduction II
1 Scope
2 Normative References
3 Terms and Definitions
4 General Requirements
5 Materials
6 Structure
7 Calculation
8 Manufacturing, Inspection and Acceptance
Appendix A (Normative) Declaration of Conformity
Appendix B (Informative) Calculation of High Vibration Mode of Vertical Vessels
Appendix C (Informative) Calculation of Vertical Vessels Deflection
Appendix D (Informative) Calculation Data
Appendix E (Informative) Base Shear Method of Seismic Load