| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device wherein energy saving operation and safety are compatible. SOLUTION: The control device 50 is provided with a control program that during energy saving operation effected in a state that a flow rate of cooling water fed to an absorber 2 and a condenser 6 is limited to a value lower than a rated flow rate, the number of revolutions of a cooling water pump 26 is returned to the rated number of revolutions when the temperature T5 of a weak absorbent solution detected by a temperature detecting means 42 exceeds a given temperature, for example, 40 deg.C and the temperature T6 of the solution in a high temperature regenerator 3 detected by a temperature detecting means 43 is a given temperature, for example, 155 deg.C, an opening V of a heating amount control valve 22 is a given opening, for example, 80% or less of an opening during the rated operation, and a flow rate of cooling water fed to the absorber 2 and the condenser 6 through cooling water piping 25 is returned to a rated flow rate.
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