Features and Considerations of the Screw Chiller Plant

Components of the Screw Chiller Plant

The screw chiller plant mainly consists of a screw-type refrigeration compressor, a condenser, an evaporator, a thermal expansion valve, an oil separator, and control components and instruments. These components work together to complete the refrigeration or heat pump cycle.

Features of the Screw Chiller Plant

• Simple Structure with Fewer Moving Parts: Compared to other types of chiller plants, the screw chiller plant has a more compact structure, fewer moving parts, and fewer components prone to wear. This results in a low failure rate and a long service life.

  
  

• Smooth Operation with Low Noise: The screw compressor operates smoothly due to its circular motion. When operating under low loads, there is no "surge" phenomenon, and both noise and vibration are minimal.

  
  

• High Cooling Capacity and Wide Application: The screw chiller plant provides a large cooling capacity per unit and is suitable for central air conditioning systems or large-scale industrial refrigeration. It is widely used in office buildings, hotels, hospitals, research institutions, and other places.

  
  

Considerations When Selecting a Screw Chiller Plant

• Select Based on Cooling Load and Application: When choosing a chiller plant, it is important to consider the actual cooling load and intended use. For refrigeration systems with extended low-load operating conditions, multi-compressor screw chiller plants are recommended.

  
  

• Prioritize High Coefficient of Performance (COP): The COP is a critical indicator for evaluating the cooling efficiency of a chiller plant. It is advisable to select units with a higher COP for better energy efficiency.

  
  

• Consider Nominal Operating Conditions: The actual cooling capacity of the chiller plant depends on factors such as the chilled water outlet temperature, flow rate, and the inlet temperature and flow rate of the cooling water. These factors should be considered during selection as they can impact the unit's performance.

  
  

• Consider Load Regulation Range: Multi-compressor screw chiller plants have excellent partial-load performance. They can be selected according to actual requirements to meet varying cooling demands under different load conditions.

  
  

ZILI's screw chiller plant is the ideal choice for many industrial enterprises due to its outstanding performance and reliable quality.