F - Mech Eng,Light,Heat,Weapons – 24 – H
Patent
F - Mech Eng,Light,Heat,Weapons
24
H
309/40
F24H 1/14 (2006.01)
Patent
CA 1314921
COMPARTMENTALIZED ELECTRIC LIQUID HEATER Abstract of the Disclosure A compartmentalized storage tank-type electric liquid heater includes a housing with upper and lower portions. A fluid inlet is defined in the lower portion and a fluid outlet is defined in the upper portion. A plurality of panels or other partitioning structures are mounted within the housing to divide the interior into a plurality of subcompartments. A first subcompartment includes a cold water inlet and a final subcompartment includes a hot water outlet. The first and final subcompartments are in fluid communication with a plural- ity of intermediate subcompartments. All or most subcompart- ments include a heating element. In one embodiment of the invention, the heating elements in the first and final subcom- partments are electrically connected to a first temperature control and the heating elements in the intermediate subcom- partments are electrically connected to a second temperature control. Thermostatic controls are arranged to shift energy from one or more upstream compartments to downstream compart- ments during water usage to achieve a portion of the storage tank capacity at design delivery temperature at a minimum of electrical energy input, When water flow stops, the heating elements in the later compartments stay energized for a period of time until the water reaches a predetermined temperature and then the elements in one or more later (downstream) com- partments are at least partially deenergized to shift energy to one or more upstream compartments.
539607
Fitzsimmons Macfarlane
Kale Hemant D.
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