To provide a control method for improving the efficiency of a partial load operation in a model with a concentrated liquid pump of a double effect absorption type refrigerating machine.
In this double effect absorption type refrigerating machine comprising an absorber 1, a high-temperature regenerator 3, a low-temperature regenerator 5, a condenser 9 and an evaporator 10, an absorbent increased in its concentration by reseparating refrigerant vapor by the low-temperature generator 5 is passed through the low-temperature heat exchanger 7 through a pipe conduit L3 by the concentrated liquid pump 6 and introduced into the absorber 1. A first temperature sensor T1 and a second temperature sensor T2 are disposed back and forth at the downstream side of a bypass pipe conduit 8 disposed on the way of the pipe conduit L3, a third temperature sensor T3 and a forth temperature sensor T4 are disposed back and forth at the upstream side of the bypass pipe conduit 8. An inlet-side temperature and an outlet-side temperature of the low-temperature heat exchanger 7, an outlet-side temperature of the low-temperature regenerator 5 and an inlet-side temperature of the absorber 1 are measured, and a flow rate to the low-temperature heat exchanger 7 of the absorbent of an adequate high concentration is controlled on the basis of the temperatures.
COPYRIGHT: (C)2009,JPO&INPIT
Kamikatsu Shinichi
Akira Hatayama
| JP6088655A | ||||
| JP62186178A |