| 摘要 |
PROBLEM TO BE SOLVED: To return a driving heat source in a stable condition to cogeneration equipment. SOLUTION: The absorption chiller-heater comprises cooling water tubes 20A, 20B, and 20C, and valves V1, V2, and V3. A cooling water tube 20A is provided through an absorber 2 and a condenser 4 in this order. A cooling water tube 20B is branched from the tube 20A at this side of the absorber 2 and combined at the part coming from the condenser 4 to detour the absorber 2 and the condenser 4. A cooling water tube 20C is allowed to communicate between the part of the absorber 2 and the condenser 4 of the tube 20A. A three-way flow-regulating valve V1 is provided to a confluence of the tube 20A and the tube 20B to control the ratio of the cooling water flowing in the tube 20A and the tube 20B. An open/close valve V2 is placed upstream of the connection part of the tube 20A to the tube 20C, and this valve is closed at a time of heating operation, and opened at a time of cooling-operation. An open/close valve V3 is placed upstream of the connection of the tube 20B to the tube 20C, or to the tube 20C, and this valve is closed at the time of cooling operation.
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