SY/T 0511-2024 Tank appurtenances for vertical cylindrical welded steel tanks English, Anglais, Englisch, Inglés, えいご
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ICS
E
Professional standard of the People's Republic of China
SY/T 0511-2024
Replaces SY/T 0511-2010
Tank appurtenances for vertical cylindrical welded steel tanks
立式圆筒形钢制焊接储罐附件
(English Translation)
Issue date: 2024-12-25 Implementation date: 2025-06-25
Issued by National Development and Reform Commission, P.R.C
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 General Principles
5 Design
5.1 Installation Principles
5.2 Materials
5.3 Tank Venting Design
5.4 Floating Roof Seal Design
5.5 Floating Roof Drain Design
5.6 Other Attachments
6 PV Valve
6.1 Structure
6.2 Specification, Model, and Set Pressure Grade
6.3 Materials
6.4 Technical Requirements
6.5 Manufacturing
6.6 Inspection and Testing
6.7 Marking
7 Open Vent
7.1 Structure
7.2 Materials
7.3 Technical Requirements
7.4 Manufacturing
7.5 Marking
8 Automatic Bleeder Vent
8.1 Structure and Specification
8.2 Materials
8.3 Technical Requirements
8.4 Marking
9 Gravity Emergency Relief Valve
9.1 Structure and Specification
9.2 Materials
9.3 Technical Requirements
9.4 Inspection and Testing
9.5 Marking
10 Primary Seal Device
10.1 Structure
10.2 Materials and Specifications
10.3 Technical Requirements
10.4 Marking
11 Secondary Seal Device
11.1 Structure
11.2 Materials and Specifications
11.3 Technical Requirements
11.4 Marking
12 Eliminated Oil&Gas Space Seal Device
12.1 Structure
12.2 Materials and Specifications
12.3 Technical Requirements
12.4 Marking
13 Floating Roof Drain Device
13.1 Structure
13.2 Materials
13.3 Technical Requirements
13.4 Inspection and Testing
13.5 Marking
14 Emergency Drain Device
14.1 Structure
14.2 Materials
14.3 Technical Requirements
14.4 Inspection and Testing
14.5 Marking
15 Weight-Type Wax Scraper Device
15.1 Structure
15.2 Materials
15.3 Technical Requirements
15.4 Manufacturing, Installation and Inspection
15.5 Marking
16 Water Hammer Prevention Heater
16.1 Structure
16.2 Technical Requirements
16.3 Installation
16.4 Marking
17 Gauging Hatch
17.1 Structure and Specification
17.2 Materials
17.3 Technical Requirements
17.4 Marking
18 Packaging and Transport
Appendix A (Normative) Properties of Rubber Materials for Seals
Appendix B (Normative) Properties of Foam Materials for Seals
Appendix C (Normative) Simplified Calculation Method for Venting Capacity
C.1 Scope of Application
C.2 Calculation Method
Appendix D (Normative) Test for Venting Devices
D.1 General Provisions
D.2 Test Apparatus
D.3 Test Method
D.4 Method for Determining Venting Capacity
D.5 Pressure Test of Valve Body
Appendix E (Informative) Calculation Example of Compression Force for Counterweight Force Mechanism
E.1 Given Conditions
E.2 Compression Force Calculation
Attachments for Vertical Cylindrical Steel Welded Storage Tanks
1 Scope
This document specifies the basic requirements for design, materials, construction, manufacturing, testing, and inspection of attachments for vertical cylindrical steel welded storage tanks, including PV valves, open vents, automatic bleeder vents, gravity emergency relief valves, primary seal devices, secondary seal devices, eliminated oil&gas space seal devices, floating roof drain devices, emergency drain devices, weight-type wax scraper heaters, water hammer prevention heaters, and gauging hatches. It also describes the corresponding inspection and test methods for these tank attachments.
This document applies to attachments for storage tanks designed to store petroleum, petrochemical products, and other similar liquids, with a maximum design positive pressure not exceeding 18 kPa and a maximum design negative pressure not exceeding 6.9 kPa.
This document does not apply to attachments for tanks storing refrigerated liquids.
2 Normative References
The following documents contain provisions which, through normative reference in this text, constitute essential provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 150.3 Pressure vessels — Part 3: Design
GB/T 150.4 Pressure vessels — Part 4: Fabrication, inspection and testing, and acceptance
GB/T 531.1 Rubber, vulcanized or thermoplastic — Determination of indentation hardness — Part 1: Durometer method (Shore hardness)
GB/T 700 Carbon structural steels
GB/T 713.2 Steel plates and strips for pressure equipments — Part 2: Non-alloy and alloy steels with specified temperature properties
GB/T 713.3 Steel plates and strips for pressure equipments — Part 3: Low alloy steels with specified low temperature properties
GB/T 713.7 Steel plates and strips for pressure equipments — Part 7: Stainless steels and heat resisting steels
GB/T 1184 Geometrical tolerancing — Tolerances for features without individual tolerance indications
GB/T 1222 Spring steels
GB/T 1239.2 Technical specifications for cold coiled helical springs — Part 2: Compression springs
GB/T 1591 High strength low alloy structural steels
GB/T 1804 General tolerances — Tolerances for linear and angular dimensions without individual tolerance indications
GB/T 3274 Hot-rolled plates and strips of carbon structural steels and high strength low alloy structural steels
GB/T 3280 Cold rolled stainless steel plates and strips
GB/T 3880 (all parts) Wrought aluminium and aluminium alloy plates, sheets and strips for general engineering
GB/T 4237 Hot rolled stainless steel plates, sheets and strips
GB/T 5782 Hexagon head bolts
GB/T 5783 Hexagon head bolts — Full thread
GB/T 5908 Flame arresters
GB/T 6170 Hexagon nuts, style 1
GB/T 6414 Castings — Dimensional tolerances and machining allowances
GB/T 6479 Seamless steel tubes for high-pressure fertilizer equipment
GB/T 7659 Steel castings for welded structure
GB/T 7762 Rubber, vulcanized or thermoplastic — Resistance to ozone cracking — Static strain test
GB/T 8163 Seamless steel tubes for liquid service
GB/T 9124.1 Steel pipe flanges — Part 1: PN designated
GB/T 9438 Aluminium alloy castings
GB/T 9948 Seamless steel tubes for petroleum cracking
GB/T 10802 Flexible polyurethane foam for general use
GB/T 12459 Steel butt-welding seamless pipe fittings
GB/T 13306 Nameplates
GB/T 13384 General specifications for packaging of mechanical and electrical products
GB/T 13401 Steel butt-welding pipe fittings — Technical specification
GB/T 15114 Aluminium alloy die castings
GB/T 28778 Pilot-operated safety valves
GB/T 50128 Specification for construction of vertical cylindrical steel welded storage tanks
GB/T 50341 Standard for design of vertical cylindrical steel welded storage tanks
HG/T 2809 Rubber sealing strip for soft sealing device of floating roof tank
HG/T 20592 Steel pipe flanges (PN designated)
HG/T 20615 Steel pipe flanges (Class designated)
NB/T 10558 Coating and transport packaging for pressure vessels
NB/T 47008 Carbon steel and alloy steel forgings for pressure equipments
NB/T 47009 Alloy steel forgings for low temperature pressure equipments
NB/T 47010 Stainless steel and heat-resisting steel forgings for pressure equipments
NB/T 47013.2 Nondestructive testing of pressure equipments — Part 2: Radiographic testing
NB/T 47013.3 Nondestructive testing of pressure equipments — Part 3: Ultrasonic testing
NB/T 47013.5 Nondestructive testing of pressure equipments — Part 5: Penetrant testing
SY/T 5921 Specification for operation, maintenance and repair of vertical cylindrical steel welded oil tanks
MH 5008 Design code for fueling system of civil transport airport
QB/T 4876 Polytetrafluoroethylene skived film
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
PV valve
A ventilation device used for overpressure relief and vacuum suction for storage tanks.
3.2
open vent
A ventilation device used to balance the pressure inside and outside the storage tank.
3.3
automatic bleeder vent
A ventilation device that can automatically close or open when the floating roof floats up or returns to its support state.
3.4
set pressure
The preset pressure at which a PV valve or emergency relief valve begins to open under operating conditions. It is the gauge pressure measured at the valve inlet.
3.5
full open pressure
The minimum gauge pressure at the valve inlet when a PV valve or emergency relief valve reaches full opening.
3.6
re-seating pressure
The gauge pressure at the valve inlet when the disc and seat reseal after the relief of a mechanical PV valve.
3.7
rated venting capacity
The maximum volumetric flow rate of gas, expressed in normal cubic meters, that a ventilation device can pass under design conditions.
3.8
normal cubic meters
The volume of air or gas at a temperature of 0°C and a pressure of 101.3 kPa.
3.9
eliminated oil&gas space seal
A sealing device installed between the primary seal device and the secondary seal device of an external floating roof tank, used to eliminate the oil and gas accumulation space.
