To prevent pump lock of an absorption liquid pump by suppressing deposition of a corrosion inhibitor contained in absorption liquid in a double effect absorption refrigerating machine in particular.
A refrigerant liquid bypass pipe line 20 is provided for connecting a downstream side of a refrigerant liquid pump 12 in a pipe line R6 which supplies refrigerant liquid from an evaporator 4 to a refrigerant liquid spraying pipe 4a of the evaporator 4 by the refrigerant liquid pump 12, with a downstream side of a low-temperature heat exchanger 7 in a pipe line which supplies concentrated absorption liquid from a low-temperature regenerator 2 to an absorber 5 via the low-temperature heat exchanger 7 by a concentrated absorption liquid pump 10. A shut-off valve 21 is provided in the refrigerant liquid bypass pipe line 20. When starting, a part of the refrigerant liquid from the evaporator 4 is supplied through the refrigerant liquid bypass pipe line 20 by the refrigerant liquid pump 12.
NAGASAWA SHINGO
ISHIFUKU SOICHI
| JPS62186178A | 1987-08-14 | |||
| JPH06300382A | 1994-10-28 | |||
| JPH11264623A | 1999-09-28 | |||
| JPS52117668U | 1977-09-06 |