McQuay Single-Screw Chilled Water Unit

Product Introduction

Since the 1970s, McVille's single screw chillers have attracted a global user base with their high efficiency, energy-saving, and stable, reliable performance.

Today,PFSSingle screw chillers achieve configurable cooling capacity and energy efficiency, offering flexibility to meet demands, thereby writing a new chapter in the application field of single screw chillers.

Single Screw Technology:The single screw compressor screw is symmetrically arranged with the star wheel, which cancels out the axial and radial forces on the shaft. Thanks to this balanced force technology, the theoretical bearing life of a single screw is significantly longer than that of a twin screw.

High-quality materials selection:The star wheel blades are made of original imported Dutch composite carbon fiber materials, featuring good oil affinity, wear resistance, corrosion resistance, and high-temperature tolerance.; The rotor surface is coated with an aluminum protective layer, offering superior lubricity and sealing properties.;“Aluminized rotor”With“Non-metallic sprocket”The combination of metals and non-metals minimizes material wear caused by high friction between materials, thereby achieving gapless compression and enhancing compression efficiency by improving the compression ratio.

Low operating noise:The eleven-tooth sprocket and six-tooth rotor mesh to disperse and reduce exhaust pulsation, featuring exhaust balance. It effectively eliminates sine wave noise, and the symmetrical sprocket combined with a single screw creates a dual reverse wave, forming an internal silencer to significantly reduce compressor noise. The unit operates with balanced performance, low noise, and minimal vibration.

New-type Falling Film Evaporator:The main models utilize a new type of film evaporator, with refrigerant evenly distributed over the special toothed design on the inner surface of the evaporating tube. This design ensures a more thorough heat exchange between the refrigerant and the coolant, significantly reducing the refrigerant charge while maintaining the evaporator's heat exchange efficiency.

Original Cyclone Oil Separator:Key models utilize a cyclone-type oil separator. Overheated refrigerant gas under high temperature and pressure enters the separator through the oil intake, rotates with the cylinder, and separates the refrigerant gas from the lubricating oil using the centrifugal force generated by high-speed rotation. The separation efficiency of refrigerant and lubricating oil reaches99.5 %Above, can reduce50%Quantity of lubricant added.

Continuous Power Adjustment:When the load varies, McQuay screw products achieve stepless energy adjustment through the movement of the slide valve. It significantly reduces the power consumption of the unit while ensuring the cold water outlet temperature.