Critical temperature control with vortex cooling

摘要

Variations in the air outlet temperature of a vortex cooler which varies with the inlet temperature and pressure are maintained within precise limits by a thermocouple electrically connected to a feedback loop which controls the vortex inlet air pressure in response to the signal from the thermocouple. A pneumatic inlet air control valve, along with a microprocessor based transmitter/controller and an I/P Converter pneumatically connected to the vortex inlet air control valve comprise the feedback loop. This maintains the cold air outlet temperature of the cooler within one degree of the desired temperature, despite fluctuations in the inlet air pressure and temperature.