| Technical Characteristic List | ||||||||||||||
| Project |  Units |
Inner Bladder | Outer Vessel | Remarks | ||||||||||
| Nominal Volume | L | 499 | 143※ | DPW650-499-XX Type,*Interlayer Volume | ||||||||||
| Effective Volume | L | 474 | ——— | DPW650-499-XX Type | ||||||||||
| Filling Medium | LO2/LN2/LAr | ——— | ||||||||||||
| Work Pressure | Mpa | 1.59/2.50/3.45 | -0.1※ | ※ Refers To External Pressure | ||||||||||
| Calculated Pressure | 3.18/5.00/6.90 | -0.21※ | ※ Refers To External Pressure | |||||||||||
 Pneumatic Test Pressure |
3.18/5.00/6.90 | ——— | ||||||||||||
| Leakage Test Pressure | 1.59/2.50/3.45※ | Helium Leak Detection | ||||||||||||
| ※ Pipeline Air Tightness Test | ||||||||||||||
| Design Temperature | ℃ | -196 | ·-40~60 | |||||||||||
| Working Temperature | ≥-196 | -40-60 | ||||||||||||
| Insulation Method | High Vacuum Multilayer Insulation | |||||||||||||
| Material | S30408 | S30408 | Available Sus304/304 | |||||||||||
| Corrosion Allowance | mm | 0 | 0 | |||||||||||
| Cinder | 4.0/6.0/8.0 | 3.0 | ||||||||||||
| Nominal Thickness |
Head | 4.0/6.0/8.0 | 3.0 | |||||||||||
 Design Thickness |
Cinder | mm | Based on customized | Based on customized | ||||||||||
| Head | Based on customized | Based on customized | ||||||||||||
| Opening Pressure | ||||||||||||||
| Safety Valves | MPa | 1.90/2.86/4.00 | ||||||||||||
| Rupture Discs | MPa | 2.41/4.00/5.40 | Suitable For Lo2/Ln2/Lar,Lco2 | |||||||||||
| Static Evaporation Rate | %/D | ≤1.70 | DPW650-499-XX Type,Filled With Ln2 | |||||||||||
| Vacuum Jacket Leakage Rate | Pa.m3/s | ≤6×10-8 | ||||||||||||
| Leakage Rate | Pa.m3/s | ≤6×10-7 | ||||||||||||
| Vacuum Level Of Sandwich After Filling With Liquid Nitrogen | Pa | ≤2×10-2 | ||||||||||||
| Empty Weight | Kg | Based on customized | DPW650-499-XX Type | |||||||||||
| Full Weight | / | |||||||||||||
| Maximum Filling Weight | 540(LO2)383(LN2)668(LAr) | |||||||||||||
Geometric Dimension Length ×Width × Height |
mm | 1950×762×1012 | DPW650-499-XX Type |
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Welded Joint Nondestructive Inspection |
Inner Bladder |
Classification | Class A And B 100%Rt Ray Detection Technology Grade AB,Qualified Grade Ⅱ | |||||||||||
| Standard | NB/T47013.11-2015, GB/T17925-2011 | |||||||||||||
Technical Requirement
1.The Design,Manufacturing,Inspection,And Acceptance Of This Gas Cylinder Should Be Carried Out In accordance With GB/T24159-2022 "Welded Insulated Gas Cylinders” And Be Subject To The Supervision of Tsgr0006-2014“Gas Cylinder Safety Technical Supervision Regulation”;
2.The Main Material Shall Comply With The Requirements Of GB/T24511-2017 Stainless Steel Plates and Strips For Pressure Equipment,With A Material Quality Certificate Attached;
3.The Longitudinal Circumferential Welds Of The Inner And Outer Shells Are Automatically Welded with The Welding Wire Ho3Cr21Ni10S1, And The Rest Are Continuously Manual Argon Arc Welded With the Welding Wire Ho3Cr21Ni10Si ,Except As Indicated In The Drawing;
4.The Surface Of The Vacuum Interlayer And Parts In Contact With The Working Medium Must Be cleaned To Thoroughly Remove Grease. Debris.And Other Contaminants The External Surface Of The bottle Must Be Polished To A Roughness Of Ra0.4;
5.The Oil Prohibition Pressure Gauge Is Used，With An Accuracy Of 2.5 Levels;
6.The Safety Valve Can Only Be Sealed With Lead After Passing The Commissioning, And The Pressure gauge Needs To Be Issued With An Inspection Certificate By The Metrology Department;
7.The Air Tightness Test Of The Pipeline Shall Be Conducted In Accordance With The Provisions Of GB/T12137,And The Test Medium Shall Be Dry Clean,Oil Free Air Or Nitrogen. After Assembling The valves And Safety Accessories Of Gas Cylinders,Nitrogen Shall Be Used To Conduct A Pipeline Tightness Test. The Test Pressure Shall Be XX MPA, And The Pressure Holding Time Shall Not Be Less than 1 Minute. The Valves,Joints ,and Safety Accessories Shall Not Have Leakage;
8.Weigh One By One And Print It On The Corresponding Position Of The Nameplate With A Steel Seal;
9.After Fabrication，Fill 0.05 0.1Mpa Nitrogen For Storage.