System for preheating water using thermal energy from refrigeran

Details System for preheating water using thermal energy from refrigeran System for preheating water using thermal energy from refrigeran

1987-01-15

1988-09-27

King, Lloyd L.

Refrigeration

Disparate apparatus utilized as heat source or absorber

With vapor compression system

F25B 2700

Patent

active

047732318

ABSTRACT:
A preheater system for using thermal energy available in a refrigeration cycle to heat potable water disposes a double-walled coil having an internal vent path within a water filled tank. Superheated refrigerant is passed through the coil downwardly between an inlet and an outlet. Liquid condensed within the coil accumulates in the bottom of a trap from which it is forced upwardly into a receiver tank and then returned to the refrigeration system. If excessive cooling develops, a pressure responsive valve shunts incoming superheated gas into the receiver tank to return to the selected operating range.

REFERENCES:
patent: 4098092 (1978-07-01), Singh
patent: 4293323 (1981-10-01), Cohen
patent: 4356706 (1982-11-01), Baumgarten
patent: 4507933 (1985-04-01), Chapa et al.

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