ultra low temperature recirculating chillers

Ultra-Low Temperature Recirculating Chillers: Advanced Temperature Control Solutions

Introduction

Ultra-low temperature recirculating chillers are sophisticated pieces of equipment designed to maintain fluid temperatures at extremely low levels, typically below the freezing point of water. These chillers are crucial in scientific research, material testing, and industrial processes that require stable, ultra-low temperatures.

Features of Ultra-Low Temperature Recirculating Chillers

Temperature Range: These chillers can achieve temperatures as low as -120°C, making them suitable for a wide range of低温 applications.
Cooling Capacity: They offer high cooling capacities, with some models providing up to 11,590 BTU/hr, ensuring efficient heat removal even at extreme temperatures.
Precision Control: Many models feature PID temperature controllers with PT-100 RTD sensors for precise control and stability, often within ±0.3°C.
Compact Design: Despite their high-performance capabilities, these chillers are designed with a small footprint to save space in the laboratory or industrial setting.
Applications

Ultra-low temperature recirculating chillers are used in various applications, including:

Aerospace Testing: Simulating extreme cold temperatures for aircraft systems and components.
Chemical Processing: Maintaining precise temperatures for chemical reactions that require ultra-low conditions.
Medical Research: Stabilizing temperatures for biological samples and medical testing equipment.
Technical Aspects

When selecting an ultra-low temperature recirculating chiller, consider the following technical aspects:

Compressor Type: Some chillers use a mixture of refrigerants like R404a or R23, while others may use a mixture of refrigerants tailored for ultra-low temperatures.
Heat Removal Capacity: This indicates the chiller’s ability to remove heat from the process fluid at various temperatures.
Pump Flow Rate: The flow rate of the pump affects the chiller’s ability to circulate fluid and maintain temperature uniformity.

Maintenance

Proper maintenance is essential for the performance and longevity of ultra-low temperature recirculating chillers:

Regular Inspections: Routine checks for leaks, wear, and proper fluid levels.
Cleaning: Periodic cleaning of the heat exchanger and other components to ensure efficient heat transfer.
Calibration: Periodic calibration of temperature sensors to maintain accuracy.
Conclusion

Ultra-low temperature recirculating chillers are indispensable for applications that require precise control of fluid temperatures at extreme lows. By understanding their features, applications, and technical aspects, users can ensure efficient and reliable temperature control. Regular maintenance and proper operation practices contribute to the longevity and optimal performance of these chillers.