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 refrigerator in particular.
A dilute absorption liquid bypass pipe line 22 is provided for connecting a downstream side of a dilute absorption liquid pump 8 in a pipe line R1 which supplies dilute absorption liquid from an absorber 5 to a high-temperature regenerator 1 via a low-temperature heat exchanger 7 and a high-temperature heat exchanger 6 by the dilute absorption liquid pump 8, with a downstream side of the low-temperature heat exchanger 7 in a pipe line which supplies concentrated absorption liquid from a low-temperature regenerator 2 to the absorber 5 via the low-temperature heat exchanger 7 by a concentrated absorption liquid pump 10. A shut-off valve 23 is provided in the dilute absorption liquid bypass pipe line 22. When a liquid amount of the concentrated absorption liquid sent from the concentrated absorption liquid pump 10 is small under a low load, a part of the dilute absorption liquid from the absorber 5 is supplied through the dilute absorption liquid bypass pipe line 22 by the dilute absorption liquid pump 8.
| JPH10325634 | ABSORBING TYPE FREEZER |
| JP2892519 | [Title of Invention] Absorption heat pump device |
NAGASAWA SHINGO
ISHIFUKU SOICHI
| JPS62186178A | 1987-08-14 | |||
| JP2003056941A | 2003-02-26 | |||
| JP2002081785A | 2002-03-22 |