Flooded Water Cooled Screw Chiller

This series of Flooded Water Cooled Screw Chillers comprises a high-efficiency twin-screw compressor, a high-efficiency heat exchanger, and an advanced throttling mechanism. They are widely used in air-conditioned environments such as hotels, restaurants, schools, shopping malls, office buildings, residential buildings, and hospitals. They can also be used for cooling processes in the plastics, chemical, and precision instrument industries.

Screw Compressor

- Employs a renowned brand of fluorine-resistant motor, ensuring extremely high efficiency and reliability. The motor is cooled by a low-temperature refrigerant.
- The male and female rotors are machined using a high-precision rotor grinding machine, resulting in high volumetric efficiency, low noise, low vibration, and smooth, reliable operation.
- Direct motor drive minimizes moving parts and vulnerable components, leading to high mechanical efficiency.
- Capacity regulation can be achieved via a slide valve to smoothly adapt to changes in air conditioning load.
- Differential pressure oil supply eliminates the need for an oil pump.

Evaporator Design

- Optimized refrigeration distributor design ensures uniform temperature distribution and low refrigerant pressure drop within the heat exchanger.
- The evaporator tubes are fully immersed in boiling liquid refrigerant, resulting in a total heat transfer coefficient more than three times that of a dry evaporator, effectively improving the unit's cooling capacity and energy efficiency ratio.
- Enhanced heat transfer fins on the inner side of the evaporator tubes increase water-side disturbance and turbulent heat transfer, and delay scale buildup.
- Chilled water flows inside the evaporator tubes, making scale easy to clean.
- Near-saturated suction effectively improves the compressor's compression efficiency and mass flow rate.

Advanced Flow Control

- Employing advanced control logic and highly reliable throttling elements, the Flooded Water Cooled Screw Chiller automatically and precisely adjusts the evaporator refrigerant supply according to the air conditioning load.
- The throttling elements can quickly and accurately adjust the refrigerant flow rate, maintaining a stable evaporator liquid level.
- Higher heat exchange area utilization during unloaded operation results in higher part-load efficiency.

Communication and Remote Monitoring

- The Flooded Water Cooled Screw Chiller comes standard with remote switches, operation indicators, and fault indicators, allowing for monitoring of the unit from the office area. It can also be equipped with two interfaces to communicate with the building control system, enabling remote monitoring.

Comprehensive Control System

- Employs a renowned brand PLC controller and a user-friendly interface.
- Features multiple protection functions to ensure safe and reliable unit operation.
- Includes status display, parameter setting, energy control, fault diagnosis, and other control functions, greatly facilitating user operation.
- Flooded Water Cooled Screw Chiller’s capacity can be adjusted within a wide range to match actual air conditioning loads and improve partial load performance.
- Simple and intuitive setting method; users can adjust parameters according to actual operating conditions to achieve optimal operating results.

Reliable System Protection

- The compressor employs multiple protection mechanisms to completely prevent rotor seizure or motor overheating and burnout.
- Real-time monitoring and control of high and low pressure, exhaust temperature, operating current, and water temperature ensures safe operation of the unit.
- Multiple protection mechanisms, including water flow, antifreeze, low pressure, and water temperature monitoring, completely prevent the evaporator tubes from freezing and cracking.

Reliable Oil Handling System

- Differential pressure oil supply, eliminating the need for an oil pump. The compressor incorporates a patented high-efficiency oil separator.
- Unique in-evaporator concentration and ejection oil return.
- High-efficiency secondary oil separator combining external mechanical and adsorption methods.