| Code &Standard | TSG21-2016 Supervision Regulation On Safety Technology Of Stationary Pressure Vessels Pressure Vessels(GB/T150.1150.4-2011) GB/T18442.118442.6-2019 Stationary Vacuum Insulated Cryogenic Pressure Vessels (Reference |
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| Basic Data | |||||||
| Inner Vessel | Outer Vessel | Tank | |||||
| Design Pressure MPa | 2.30 | -0.1 | Tank Classification | Ⅱ | |||
| Working Pressure MPa | ≤2.20 | -0.1 | Filling Medium | Lo2,LN2,LAr | |||
| Design Temperature ℃ | -196 | 50 | Medium Characteristics | Non-Toxic And Non-Flammable | |||
| Working Temperature ℃ | `-196 | `-20~50 | Effective Volume M3/Filling Rate | Based on customized | |||
| Volume m3 | customized | 5.97(Interlayer) | Leak Rate of Vacuum Interlayer Pom3/s | ≤5X10-8 | |||
| Pneumatic Test Pressure Before Suit) MPa |
2.64 | Leak And Out gassing Rate Pam3/s | ≤5X10 -6 | ||||
| Static-evaporation Rate %/D | ≤0.23(LN2) | ||||||
| Leakage Test Pressure MPa | Air Tightness 2.30 | Helium Leak Detection | Sealing Vacuum Pa | ≤0.02Pa | |||
| Material Cf Main Pressure Parts | SS30408 | Q345R | Earthquake Intensity | Seven Degrees (0.15G) | |||
| Filling Weight Kg | customized | Basic Wind Pressure KN/m2 | 0.35 | ||||
| Equipment Net Weight Kg | customized | Basic Snow Pressure KN/m2 | DON'T Consider | ||||
| Design Expected Service Life Year | 20 | ||||||
| Design Data | |||||||
| 〔Corrosion Allowance mm | 1.0 | 0 | Safety Valve |
Set Pressure Of Main Safety Valve MPa |
2.30 | ||
| Welded Joint Coefficient | 1.0 | 0.85 | |||||
| Nominal/Minimum Forming Thickness Of Head mm |
customized | customized | Set Pressure Of Auxiliary Safety Valve MPa |
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| Nominal/Minmum Forming Thickness Of Vessel mm |
customized | customized | Safety Valve Specification/Model | DA22F-40P(25C1)/15mm | |||
| Safey Valve Connection Type | Threaded Connection | ||||||
| Calculated Thickness Of Head mm | customized | customized | Pressure Gauge (No Oil) |
Model | Y0-100 | ||
| Calculated Thickness Of Vessel mm |
customized | customized | Measuring Range | 0-4MPa | |||
| Accuracy | Not Lower Than 1.6 | ||||||
| Insulation Method | High Vacuum Multilayer Insulation | Connection Type | Threaded Connection | ||||
| Insulation Layer Thickness mm | 25 | ||||||
| Manufacturing Inspection And Acceptance | ||||||
| Material Requirement|S | The Plate Of Inner Vessel Shall Comply With GB/T24511-2017.The Plate Of Outer Vessel Shall Comply With GB/T713-2014,And The Pipe Fittings Shall Comply With GB/T14976-2012 |
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| Material Inspection And Re-Inspection |
If The Inner Vessel Is Made Of Stainless Steel Plate,The Material Shall Be Re-Inspected According Toni GB/T150.4-2011 |
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| Welding Procedure | NB/T47015-2011 | Heat treatment | ||||
| Welded Joint Type | Unless Otherwise Specified,The Fully Welded Structure Is Adopted,And The Groove Form And Size(An Be Made According To HG/T20583-202O Or The Welding Process Specification Of The Manufacturer |
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| Orientation Of Pipeline And Leg | According To This Drawing | Panting,Packaging And Transportation | NB/T10558-2021 | |||
| Product Welding Test Piece | 一 一 | |||||
| Select Welding Materials According To-NB/T47015-2011 And Its Qualified Welding Process | ||||||
| Connection Joint Table | ||||||
| Non-destructive testing of welded joints | Connection Joint Table | Method--Detection rate | Standards and levels | |||
| Inner Vessel | Type A,B | 100% Ray Detection | NB/T47013.2-2015,ⅠGrade | |||
| NB/T47013.11-2015,ⅠGrade | ||||||
| Type A,B,C,D,E | 100% Osmosis detection | NB/T47013.5-2015,ⅠGrade | ||||
| Type B(folding joint) | 100% Ray Detection | NB/T47013.2-2015, ⅡGrade | ||||
| Outer Vessel | Type A,B | 20% Ray Detection | NB/T47013.2-2015,ⅢGrade | |||
| NB/T47013.11-2015,ⅢGrade | ||||||
| Type C,D | 100% Magnetic Particle Testing | NB/T47013.4(5)-2015,ⅠGrade | ||||
| Cylinder final ring weld | 100% Magnetic Particle Testing | NB/T47013.4(5)-2015,ⅠGrade | ||||
Technical Requirement
1.The Product Shall Comply With TSG 21-2016 Supervision Regulation On Safety Technology Of Stationary Pressure Vessels And GB/T150.1~150.4-2011 Pressure Vessels;
2.The Oxygen Content Of The Container And Pipeline Shall Not Be Higher Than 3%;
3.100%Magnetic Particle(Penetrant)Testing Shall Be Carried Out For Class C And D Welds Of The Shell,100%Internal And External Surface Testing Shall Be Carried Out According To The Requirements Of The Manufacturing Process For Internal And External Surface Testing,And 100%External Surface Testing Shall Be Carried Out For Welds That Cannot Be Subject to Internal Surface Testing,And The Testing Position Shall Be Indicated In The Flaw Detection Report;
4.The Coaxiality Between The Shell And The Contents Shall Be≤5mm
5.The Primer Is Quick-Drying Epoxy Paint,With Dry Film Thickness≥140mm,Semi-Gloss Acrylic Pol yurethane Paint Is Used As the Finish Paint,With Dry Film Thickness≥75mm.Total Dry Film Thickness>215mm;
6.The Cryogenic Liquid Storage Tank Must Use The Pressure Pipe Components Produced By The Licensed Unit;
7.Purchased Parts Shall Meet The Requirements Of GB/T18442.2-2019;
8.When Purchasing Safety Valves,Pressure Gauges,Etc.,They May Be Different From The Models In The Table,But The performance Shall Comply With The Requirements In The Table;
9.Dust Protection Of All External Interfaces Shall Meet The Requirements Of GB/T18442.4-2019;
10.After The Completion Of The Product,The Inner Container And Pipeline Shall Be Pressurized With Dry Nitrogen To 0.03~0.05Mpa For Sealing,And The Dew Point Of Nitrogen Shall Be Lower Than -25 c;