Refrigeration – Disparate apparatus utilized as heat source or absorber – With vapor compression system
Patent
1979-04-30
1981-07-21
King, Lloyd L.
Refrigeration
Disparate apparatus utilized as heat source or absorber
With vapor compression system
622387, F25B 2702, F25B 1300
Patent
active
042791286
ABSTRACT:
A swimming pool heating system which utilizes a heat pump that is used for heating heat transfer fluid which is circulated through the primary coil of a heat exchanger. The pool water is circulated through the secondary coil of the heat exchanger by means of a standard pool pump. Rather than heating all of the water which is handled by the pump, a system bypass line is connected to the pool outlet line and a diverter valve, which is located in the pool return line, is used to divert a portion of the circulated pool water to the heating system. A three-way regulator valve located in the system bypass line divides the diverted pool water, directing a selected portion of it to the heat exchanger and a selected portion of it to the pool return line in order to automatically control the heating effect the pool heater has on the heat transfer fluid, thereby keeping the discharge pressure of the heat pump relatively constant so that it operates in its most efficient range. A defrost bypass is associated with the regulator valve in order to override the regulator valve when the heat pump operates in a defrost cycle, thereby ensuring that adequate pool water is directed to the heat exchanger to provide a sufficient heating load. A thermostatic control is included to allow heat pump operation to be responsive to the swimming pool heating demand and a pressure control terminates operation of the system upon discontinued or reduced availability of pool water.
REFERENCES:
patent: 3498072 (1970-03-01), Stiefel
patent: 3513663 (1970-05-01), Martin, Jr. et al.
patent: 3926008 (1975-12-01), Webber
patent: 3959986 (1976-06-01), Ledermann
patent: 4019338 (1977-04-01), Poteet
patent: 4141222 (1979-02-01), Ritchie
Edwards Alfred R.
King Lloyd L.
Price Gene R.
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