Precision-controlled water chiller

Details Precision-controlled water chiller Precision-controlled water chiller

1988-02-10

1989-07-25

Wayner, William E.

Refrigeration

Automatic control

Of external fluid or means

62201, F25D 1702

Patent

active

048502014

ABSTRACT:
A mechanically refrigerated chiller system for a process coolant has a process coolant circuit which includes a coolant reservoir with refrigerant evaporator coils in it. Coolant returns from the process to the reservoir through several and alternate paths. An additional coolant path is provided through a heat exchanger. An extra hot-gas line from the high pressure side of the refrigerant compressor is coupled through the heat exchanger to the refrigerant condenser. When the temperature of the coolant is too low, adjustment is made by adding heat to some of the coolant in the heat exchanger. Coolant temperature is sensed in an area where coolant returns from the process through a direct path and in another area where the coolant is leaving the evaporator through the aforementioned heat exchanger are mixed with a portion of the reservoir coolant.

REFERENCES:
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patent: 3017162 (1962-01-01), Haines et al.
patent: 3822566 (1972-07-01), Lowi, Jr.
patent: 3859812 (1975-01-01), Pavlak
patent: 4248055 (1981-02-01), Day et al.
patent: 4457358 (1984-07-01), Kriege et al.
patent: 4495777 (1985-01-01), Babington
patent: 4502289 (1985-03-01), Kayama
patent: 4517808 (1985-05-01), Movshovitz
patent: 4526012 (1985-07-01), Chigira
patent: 4546618 (1985-10-01), Kountz et al.

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