Stoves and furnaces – Liquid heater – Boiler receiving hot liquid or steam from stove or furnace
Patent
1988-01-19
1990-10-30
Jones, Larry
Stoves and furnaces
Liquid heater
Boiler receiving hot liquid or steam from stove or furnace
237 8A, 126374, F24H 100
Patent
active
049661272
ABSTRACT:
A method and apparatus for reducing the amount of energy consumed in heating a building with a direct fired boiler having a supply reheat line and return reheat line including operating the direct fired boiler at full capacity until the supply reheat water temperature reaches a preset temperature, and varying the total water in the return reheat line and the supply line to maintain the temperature differential between the temperature of the water in the return reheat line at a preset value. A method and apparatus for turning off one or more direct fired boilers utilizing two or more direct fired boilers connected in parallel when one or more of the direct fired boilers is not needed to heat the building is also disclosed. Each of the direct fired boilers having a supply reheat water line and a return reheat water line. The method and apparatus includes measuring the temperature of the return reheat water, comparing the temperature of the return reheat water to a preset temperature, turning off one of the direct fired boilers when the temperature of the return reheat is equal to the preset temperature, and stopping all water flow to the one direct fired boiler which is turned off.
REFERENCES:
patent: 4385724 (1983-05-01), Ramsauer et al.
patent: 4535931 (1985-08-01), Bartok et al.
patent: 4537348 (1985-08-01), Gossi
patent: 4606325 (1986-08-01), Lujan, Jr.
Jones Larry
Ray David L.
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