CONTROLLER FOR DILUTING AN ABSORBENT IN AN ABSORPTION REFRIGERATING MACHINE

摘要

PURPOSE: An apparatus is provided to lengthen useful life of the refrigerating machine and prevent waste of absorbent by preventing crystallization of absorbent through the use of temperature and pressure sensors mounted in the refrigerating machine. CONSTITUTION: An apparatus comprises a temperature sensor(28) attached to a low temperature heat exchanger(18) and which senses the temperature of absorbent flowing into the low temperature heat exchanger; a pressure sensor(30) attached to the low temperature heat exchanger and which senses the pressure of the absorbent flowing to the low temperature heat exchanger; and a micro computer(32) for calculating the concentration of the absorbent by computing the absorbent temperature and pressure output from the temperature sensor and pressure sensor, comparing the calculated concentration of the absorbent with the preset concentration value corresponding to the absolute temperature of the absorbent when flowing into the low temperature heat exchanger, and performing a diluting control for the absorbent if the calculated concentration is higher than the preset concentration value.