Refrigeration – Automatic control – Of closed system sorbent type
Patent
1996-09-16
1998-10-13
Doerrler, William
Refrigeration
Automatic control
Of closed system sorbent type
62483, F25B 1500
Patent
active
058195467
ABSTRACT:
An absorption chiller having a high temperature generator and a low temperature generator includes a pressure detecting means for detecting a pressure within the high temperature generator, a concentration fixing control means for controlling a concentration of the solution of the high temperature generator or of the low temperature generator, a selection converter for receiving two output signals from the pressure detecting means and the concentration fixing control means as inputs, selecting and outputting a higher one of these input signals, and a rotational speed controlling device for controlling a rotational speed of the solution pump by the output signal of this selection converter. An absorption solution is controlled adequately in its circulation quantity in accordance with a load from a low load range to a high load range of this absorption chiller, so that the solution is not crystallized even in the low load range, and efficiency during a partial load operation is improved.
REFERENCES:
patent: 3626710 (1971-12-01), Porter
patent: 4202181 (1980-05-01), Lamb
patent: 4718243 (1988-01-01), Buschulte et al.
patent: 5224352 (1993-07-01), Arima et al.
patent: 5592825 (1997-01-01), Inoue
Doerrler William
Hitachi , Ltd.
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