Water-Cooled Single-Unit Screw Chiller
Water-Cooled Double-Head Screw Chiller
Water-Cooled Chiller
Water-Cooled Chiller
Structural characteristics
1. Dual Compressor Design
●Equipped with two high-efficiency semi-hermetic screw compressors, each unit can operate independently or in tandem, ensuring high efficiency under both partial load and full load conditions.
2. Dual Refrigeration Circuits
●Two independent refrigeration circuits serve as backups for each other, ensuring continuous and safe operation of the unit. Even if one system fails, the other can operate independently, preventing total system shutdown.
3. Inverter Control
●The compressor, cooling water pump, and chilled water pump all support Inverter adjustment, accurately matching the load while reducing energy consumption and mechanical stress.
4. High-Efficiency Heat Exchangers
●Uses shell-and-tube evaporators and condensers with high heat transfer coefficients, low water-side resistance, and designs that prevent scaling and facilitate cleaning.
5. Intelligent Control System
●Equipped with a microcomputer/PLC fully automatic control system featuring automatic load adjustment, fault diagnosis, remote communication interfaces, and the ability to integrate with building automation systems (BAS).
Performance Advantages
· High Energy Efficiency Ratio (COP): The advantages of inverter technology are evident during partial load operation, saving 20%–35% more energy compared to traditional fixed-frequency units.
· Stable and Reliable Operation: The dual-system, dual-compressor design greatly enhances system redundancy and safety.
· Intelligent Adjustment: Automatically optimizes compressor operating modes based on real-time load and environmental conditions, reducing the need for manual intervention.
· Low Noise and Low Vibration: The screw compressor runs smoothly, and combined with soft-start inverter technology, noise and vibration are significantly reduced.
· Easy Maintenance: Modular design allows key components to be disassembled individually, reducing maintenance difficulty and costs.
Industry Application Scope:
Chillers are widely used in various industrial fields such as plastics, electronics manufacturing, electroplating, pharmaceutical and chemical industries, ultrasonic cleaning, and printing. Especially in the plastic molding process, chillers can be used to cool molds, effectively improving the surface finish of products, reducing surface defects and internal stress, preventing shrinkage and deformation, enhancing demolding efficiency, and speeding up the setting process, thereby significantly improving production efficiency and product quality.
Semi-hermetic screw compressor
Low noise and low vibration, energy savings increased by over 20%.
The air-cooled screw chiller uses a semi-hermetic screw compressor, offering advantages such as stable operation, low noise, and minimal vibration. During the compression process, gas enters the compression chamber from the suction side, is continuously compressed as the screw rotates, and is discharged from the exhaust end. The screw design ensures smooth and efficient gas flow. The equipment uses internationally renowned brands like Bitzer or Hanbell screw compressors, ensuring long-term, efficient, and reliable operation. Compared to traditional scroll compressors, overall energy efficiency is increased by more than 20%, significantly reducing energy consumption.
Shell and tube evaporator
The air-cooled chiller uses a high-efficiency shell-and-tube evaporator, where the refrigerant evaporates inside the heat exchange copper tubes, while water flows outside the shell. To enhance heat exchange efficiency, we added an approximately 2mm thick baffle inside the shell, causing the cooling water to flow back and forth, thereby improving heat transfer efficiency and achieving the effect of producing chilled brine water.
The exterior of the shell is wrapped with high-performance insulation cotton to reduce energy loss and ensure stable system operation and constant temperature.
The evaporator uses high-efficiency seamless copper heat exchange tubes. The copper tubes are processed with precise "jade flower" craftsmanship, forming a threaded rib structure on the inner wall, which significantly increases the heat exchange area between the refrigerant and the copper tubes. Compared with traditional smooth tubes, this structure more than doubles the heat exchange area, greatly enhancing overall heat transfer efficiency and refrigeration performance.
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