| 摘要 |
PROBLEM TO BE SOLVED: To prevent an absorption refrigerating machine from running into an unoperatable state due to a refrigerant shortage even when the load is low or the temperature of cooling water drops. SOLUTION: This absorption refrigerating machine is constituted in such a way that, when the concentration of an absorbent detected by means of a concentration sensor 20 becomes lower than a set value, the gas extraction by means of this absorption refrigerating machine is limited or the gas extracting function of this machine is stopped by narrowing a flow control valve 16 installed to a bleeding tube 17 which connects the gas-phase section of an absorber 1 to the ejector 11 of a gas extracting device 10.
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