LN Storage Tank
Introduction
The liquid nitrogen storage tank plays a comprehensive role in "storage, regulation, and guarantee" in air separation equipment
1. Product Storage and Dispatch Center: As the terminal storage unit for producing liquid nitrogen from air separation, liquid nitrogen can be sold or transported as the final product, or used as a flexible liquid resource for internal dispatch.
2. Buffer for supply-demand balance: effectively balancing the contradiction between the continuous and stable production of air separation units and the fluctuating gas demand of downstream users. Store liquid nitrogen during low gas usage periods, quickly vaporize and replenish during high gas usage periods or when there is insufficient nitrogen in the pipeline, ensuring stable pipeline pressure and helping air separation equipment maintain efficient operation.
3. Emergency reserve for system security: When the air separation equipment needs to be shut down for maintenance, or when there are unexpected fluctuations in the factory's nitrogen pipeline network, the liquid nitrogen stored in the storage tank can be quickly put into use as a reliable emergency gas source, ensuring that critical production processes (such as chemical protection and fire safety) are not interrupted, and improving the reliability and resilience of the entire gas supply system.
Main features and advantages
High Storage Efficiency
The volume of liquid nitrogen is only about 1/650 of that of gas, and the storage tank can store a large amount of nitrogen in a relatively small space, saving space.
01
Stable and Flexible Supply
It can be used as the main gas source for continuous supply after vaporization, or as a backup or peak shaving gas source to ensure supply in case of fluctuations or interruptions in the main gas supply system.
02
Good Safety
Nitrogen itself is an inert gas and not flammable or explosive. The working pressure of the storage tank is usually moderate, and it operates reliably as a static equipment.
03
Economical and Practical
For intermittent or dispersed gas demand, using storage tanks in conjunction with tank trucks for transportation is sometimes more economical and convenient than laying pipelines or using a large number of high-pressure gas cylinders.
04
Versatile Uses
In addition to providing gaseous nitrogen, the liquid nitrogen inside the tank can also be directly used in situations that require deep freezing.
05
Parameter
|
Storage capacity |
work pressure |
Daily evaporation rate |
adiabatic mode |
appearance |
auxiliary equipment |
|
5 m³ – 200 m³ |
0.8 MPa(G) – 1.6 MPa(G) |
≤0.3% -0.5%/day |
Vacuum powder insulation |
Vertical or horizontal |
Air temperature/water bath vaporizer, booster, infusion pump, etc |
(For Reference Only)
The main application areas of liquid nitrogen are
- Chemical and manufacturing industries: used for pipeline blowing, reactor protection, inert atmosphere for chemical storage, etc.
- Electronics industry: providing protective gas and carrier gas in semiconductor and LCD panel manufacturing.
- Metal heat treatment: provides a protective atmosphere for annealing, quenching, and other processes to prevent metal oxidation.
- Food and Medicine: Used for quick freezing of food, refrigerated transportation, freeze-drying of drugs, and storage of biological samples.
- Other fields: Widely used in scientific research laboratories, rubber and plastic molding, coal mine fire prevention and extinguishing, and other scenarios.
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