In a screw compressor, how should the heater associated with the oil separator operate?

In a screw compressor, the oil separator plays a crucial role in maintaining the appropriate temperature and viscosity of the oil used for lubrication and sealing within the compressor. The heater associated with the oil separator is designed to operate based on the temperature of the oil, ensuring that it reaches an optimal temperature for effective operation.

Operating the heater according to the oil temperature set point allows the system to maintain efficiency and prevent potential issues such as oil thickening at low temperatures or degradation at high temperatures. This responsive approach ensures that the oil remains within the ideal viscosity range for proper lubrication and efficient compressor performance.

When the oil temperature drops below the set point, the heater activates to warm the oil, and when it reaches the desired temperature, the heater shuts off. This cycle allows for energy conservation and prolongs the lifespan of the heater and the oil.

In contrast, operating the heater continuously could lead to overheating and potential damage to the oil and separator components. Starting and stopping the heater during all operations or keeping it on at all times would not provide the requisite regulation needed for optimal oil management.