Maintaining an adequate oil level in the compressor is critical to avoid potential damage. During the discharge of refrigerant gas, some amount of oil can get lost and trapped in different components of the refrigeration circuit, most frequently found at the evaporator due to the properties of the gas. However, this oil provides no benefit to those components. Instead, it may lead to oil-related problems in the system due to insufficient lubrication for the essential compressor parts.
Through careful design and engineering, we have discovered that “Boost up speed control” that involves the controlled introduction of a small amount of liquid refrigerant into the circuit can potentially wash away trapped oil from those components and help in maintaining the system consistency.
While some may have concerns about the compressor's reliability, we assure you that SCI compressor can handle the boost up speed control without compromising its performance. Our compressor is a hot shell compressor type that uses discharge superheat to control refrigerant flow. By controlling the discharge superheat level above 10K, we can guarantee the compressor's reliability even with the presence of liquid refrigerant. In addition, we recommend using an oil level sensor as a package solution to monitor and control the frequency of boost up speed control, which will assist in preventing unnecessary boost up speed operation.
We believe implementing these measures will significantly benefit the refrigeration system's performance and prevent compressors from insufficient oil problems.
