Horizontal Vacuum Insulated Liquid Nitrogen Storage Tanks
Product Details
1. Product Overview
Shijie Heavy Industry specializes in the engineering and fabrication of high-performance cryogenic liquid nitrogen ($LN_2$) storage tanks. Designed for the long-term containment of liquefied gases at temperatures as low as $-196^\circ C$, our tanks utilize a sophisticated double-walled vacuum insulation system. Whether for industrial manufacturing, food processing, or medical research, our vessels provide industry-leading thermal efficiency, ensuring a minimal boil-off rate (BOR) and maximum operational safety.
2. Key Features & Advantages
- Superior Vacuum Insulation: Features a double-wall structure with high-vacuum multi-layer insulation or vacuum powder insulation, significantly reducing heat transfer and evaporation loss.
- Cryogenic-Grade Materials: The inner vessel is fabricated from high-grade 304 stainless steel (S30408) to ensure structural integrity and ductility at cryogenic temperatures.
- Advanced Safety Instrumentation: Equipped with high-precision pressure gauges, liquid level indicators, and a dual-redundant safety relief system (including safety valves and bursting discs).
- Integrated Vaporization System: Available with customized piping and integrated ambient air vaporizers for seamless conversion from liquid to gaseous state.
- Rigorous Leak Detection: Every tank undergoes a 100% helium mass spectrometer leak test and X-ray weld inspection to ensure a perfect vacuum seal and decades of service life.
3. Technical Specifications
| Feature | Specification Details |
| Storage Medium | Liquid Nitrogen ($LN_2$), Liquid Oxygen ($LO_2$), Liquid Argon ($LAr$) |
| Inner Tank Material | Stainless Steel S30408 (Cryogenic Grade) |
| Outer Tank Material | Premium Carbon Steel (Q245R / Q345R) |
| Insulation Type | High-Vacuum Multi-layer / Vacuum Powder Insulation |
| Design Temperature | $-196^\circ C$ (Inner) / Ambient (Outer) |
| Working Pressure | 0.8 MPa, 1.6 MPa (Customizable up to High Pressure) |
| Capacity Options | 5m³ – 150m³ (Standard & Large Scale) |
| Standards Compliance | ASME Section VIII / GB/T 18442 / EN 13458 |
4. Applications
- Industrial Manufacturing: Cryogenic treatment of metals, shrink fitting, and inerting for high-tech production.
- Food & Beverage Industry: Flash-freezing of premium food products and liquid nitrogen ice cream production.
- Healthcare & Biological: Long-term cryopreservation of biological samples and medical research.
- Electronics & Aerospace: High-purity nitrogen supply for semiconductor manufacturing and aerospace testing.
5. Why Choose Shijie Heavy Industry?
At Shijie Heavy Industry, we understand that cryogenic storage requires zero-tolerance for error. Our specialized pressure vessel production line utilizes fully automated submerged arc welding and advanced vacuum-pumping technology to ensure the highest vacuum longevity in the industry. With a proven track record of exporting cryogenic solutions to the Middle East, Southeast Asia, and Africa, we provide the technical expertise and global support needed to handle your most temperature-sensitive assets.