Did you know refrigerated dryer?

Refrigerated Dryers: Essential for Clean, Dry Compressed Air Systems

In industrial applications, maintaining dry, contaminant-free compressed air is critical for equipment longevity and operational efficiency. Refrigerated dryers play a vital role in achieving this by removing moisture through advanced cooling technology.

How Refrigerated Dryers Work

A refrigerated air dryer cools compressed air by exchanging heat with a refrigerant, lowering its temperature to a dew point of 2-10°C (35-50°F). This process condenses moisture into liquid water, which is then drained away, ensuring up to 99% water vapor removal.

Common Types of Refrigerated Dryers

By Cooling Method

• Air-Cooled: Uses ambient air to cool the condenser (ideal for smaller systems).
• Water-Cooled: Relies on circulating water for cooling (suited for high-capacity operations).

By Intake Air Temperature

• High-Temperature Type (up to 80°C) for harsh environments.
• Normal-Temperature Type (~40°C) for standard applications.

By Working Pressure

• Standard (0.3–1.0 MPa) for general use.
• Medium/High-Pressure (1.2+ MPa) for specialized industries.

Key Technical Parameters

When selecting a refrigerated dryer, consider:

• Throughput (Nm³/min)
• Intake air temperature (°C)
• Working pressure (MPa)
• Pressure drop (MPa)
• Compressor power (kW)
• Cooling water consumption (t/h)

Note: The pressure dew point must be specified with conditions (e.g., intake temperature, ambient conditions).

Proper Filtration Setup

Compressed air often contains oil vapor, particulates, and liquid water, which can damage dryer components. To optimize performance:

Install a pre-filter (10–25µ) to trap oil and solids.

For stricter air quality, add oil mist filters or activated carbon filters.

Usage Precautions

Ensure air flow, pressure, and temperature align with the dryer’s nameplate ratings.

Install in a well-ventilated, dust-free area with adequate space for maintenance.

Avoid corrosive environments and never share cooling water lines with other equipment.

Maintain drainage systems and prevent operation below 2°C to avoid freezing.

Load Determination Factors

The dryer’s workload depends on:

Intake air temperature – Higher temperatures increase moisture content.

Working pressure – Lower pressure raises water retention, demanding more cooling.

Why Choose a Refrigerated Dryer?

Industries like manufacturing, food processing, and pharmaceuticals rely on refrigerated dryers to:

✔ Prevent corrosion in pipelines and tools.

✔ Enhance pneumatic system efficiency.

✔ Reduce downtime caused by moisture-related failures.

Looking for a Reliable Refrigerated Dryer?

Explore our range of energy-efficient, low-maintenance models tailored to your compressed air needs. Contact us today for a customized solution!