Compressed Nitrogen Systems

Part of Polygon’s extensive services in mechanical engineering includes compressed nitrogen systems that involve the design, installation, and operation of systems that generate, store, distribute, and utilize nitrogen gas that has been compressed to high pressures. Nitrogen gas, when compressed, becomes an inert and versatile medium used in a variety of industrial, commercial, and scientific applications. These systems are engineered to handle nitrogen gas at elevated pressures, enabling its controlled release for specific processes.

Key components and aspects of compressed nitrogen systems include:

  1. Nitrogen Gas Generation:

    • Nitrogen Generators: Utilizing techniques like pressure swing adsorption (PSA) or membrane separation to extract nitrogen gas from the surrounding air. These generators remove oxygen, moisture, and other impurities from the air, leaving behind purified nitrogen.
  2. Gas Compression:

    • Compressors: Using mechanical compressors to increase the pressure of nitrogen gas to the desired levels for the intended applications. Positive displacement or dynamic compressors can be employed for this purpose.
  3. Gas Storage and Distribution:

    • High-Pressure Storage Tanks: Storing nitrogen gas under high pressures, allowing for efficient storage and controlled release when needed.
    • Distribution Network: Designing piping, valves, and fittings to distribute the compressed nitrogen gas to various points of use.
  4. Pressure Regulation and Control:

    • Pressure Regulators: Ensuring that the pressure of the released nitrogen gas matches the requirements of specific applications, maintaining safety and efficiency.
  5. Applications in Various Industries:

    • Manufacturing: Compressed nitrogen gas is used for processes such as inerting, blanketing, and pressure testing in various manufacturing operations.
    • Food and Beverage: Nitrogen gas is used for packaging foods to extend shelf life and prevent spoilage.
    • Electronics: Compressed nitrogen is employed for cleaning, cooling, and purging in electronics manufacturing.
    • Pharmaceuticals: Nitrogen gas is utilized in various pharmaceutical processes, including preventing oxidation and moisture exposure.
    • Aerospace: Nitrogen gas is used in aircraft tires and hydraulic systems to maintain safety and operational efficiency.
  6. Cryogenic Nitrogen Systems:

    • Cryogenic Storage: In cases where extremely low temperatures are required, cryogenic storage tanks can store nitrogen in its liquid state for applications such as superconductivity and cryopreservation.
  7. Safety Measures:

    • Pressure Relief Devices: Incorporating safety valves and relief systems to prevent overpressure situations.
    • Gas Detection: Implementing gas detectors to monitor nitrogen gas levels and ensure safe working environments.
  8. Energy Efficiency and Sustainability:

    • Energy Recovery: Designing systems to recover energy from pressure drops during nitrogen expansion processes.
    • Green Practices: Implementing efficient gas generation techniques and minimizing gas losses to promote sustainability.

Our mechanical engineers specialize in compressed nitrogen systems that work to ensure the safe, reliable, and efficient operation of these systems across various industries. These systems require a solid understanding of gas behavior, pressure management, safety protocols, and the specific requirements of the applications they serve.

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