Liquid Oxygen / Nitrogen / Argon Cryogenic Storage Tank
Liquid Oxygen / Nitrogen / Argon Cryogenic Storage Tank
Product Overview
Liquid oxygen, liquid nitrogen and liquid argon cryogenic storage tanks are double‑wall vacuum‑insulated pressure vessels, designed for storing ultra‑low‑temperature cryogenic media at ‑196℃. Available in vertical and horizontal types with volume ranging from 3‑150m³ and custom‑built options. They are widely applied in metallurgy, electronics, chemical industry, welding & cutting, central gas supply stations and laboratories.
Adopting inner‑and‑outer double‑jacket structure, the interlayer is filled with perlite powder under high vacuum to minimize heat transfer and boil‑off loss. Equipped with complete piping, pressure regulating units, safety accessories and instrument system, the tank realizes integrated functions including liquid storage, automatic pressurization and vaporized gas supply.
Medium Specifications
‑ Liquid Oxygen (LOX): Boiling point ‑183℃, strong oxidizing medium
‑ Liquid Nitrogen (LIN): Boiling point ‑196℃, inert cooling medium
‑ Liquid Argon (LAR): Boiling point ‑185.9℃, inert shielding mediumLinde Gas ...
Structure & Materials
- Inner Vessel: Austenitic stainless steel, direct contact with cryogenic liquid, excellent low‑temperature toughness against brittle fracture.
- Outer Shell: Pressure‑vessel carbon steel Q345R, protects vacuum interlayer and bears external load.
- Insulation Layer: Vacuum powder (perlite) insulation; high‑vacuum multi‑layer winding insulation is optional. Sorbent installed inside interlayer to sustain high vacuum and low daily boil‑off rate.
- Piping System: Austenitic stainless steel cryogenic pipes with liquid inlet/outlet dual‑valve assembly and three‑way valve design for convenient maintenance and replacement of accessories.
- Safety Components: Safety valve, rupture disc, pressure gauge, level gauge, vacuum valve and other multi‑protection parts against over‑pressure risk.
Key Features
‑ Compact layout, small footprint, easy installation and commissioning; compatible with vaporizer & pressure regulating skid for centralized gas supply.
‑ Superior vacuum insulation, low thermal conductivity and low evaporation loss to reduce medium waste.
‑ Re‑fillable cryogenic pressure vessel with reliable gas‑tightness and long service life.
‑ Multiple working pressure options: 0.8MPa, 1.6MPa, 2.3MPa for various working conditions.
‑ Optional remote level & pressure monitoring and flow meter for digital operation management.
Factory Acceptance Tests
Strict tests performed for every tank before delivery:
- Low‑temperature performance test
- Interlayer vacuum degree test for stable thermal insulation
- Hydraulic & pneumatic pressure test to verify pressure‑bearing capacity
- Ultrasonic flaw detection for non‑destructive weld inspection, zero‑leakage guarantee
- Helium mass‑spectrometer leak‑detection for interlayer leak rate control
Applications
Metallurgical cutting, semiconductor shielding, welding shielding gas, food quick‑freezing, biological cryopreservation, hospital central oxygen supply, industrial gas vaporization stations and scientific laboratories.
