Cooling of electrical furnaces
AssigneeBrown Boveri Corporation
InventorsOtto Hochstrasser, William S. Ruby, Frank V. Madaffore
Life of this patent
Estimating the term…
Abstract
Emergency cooling for an electric furnace is carried out by flowing municipal water through one part of a heat exchanger and through a hydraulic motor and using the motor output to drive a pump which forces coolant liquid in recirculatory fashion through the furnace and through another part of the heat exchanger.
Claims14
Apparatus for providing emergency cooling to electrical furnaces comprising a furnace of the type in which a primary coolant liquid flows in a closed loop through coils in the furnace and through a separate heat exchanger, a bypass conduit interconnected into said closed loop circuit for permitting at least a portion of the primary coolant liquid flowing in said circuit to bypass said separate heat exchanger, a second heat exchanger interposed in said bypass conduit, an emergency coolant flow conduit arranged to direct a flow of emergency coolant liquid through said second heat exchanger and means arranged to utilize the flow energy of said emergency coolant liquid in said emergency coolant flow conduit to drive said primary coolant liquid through said bypass conduit.
A method for providing emergency cooling to electrical furnaces of the type in which a primary coolant liquid flows in a closed loop circuit through coils in the furnace and through a separate heat exchanger, said method comprising the steps of directing at least a portion of said primary coolant liquid to flow through a bypass conduit to bypass said separate heat exchanger and to pass through a second heat exchanger in said bypass conduit, flowing a pressurized emergency coolant liquid through said second heat exchanger and using the flow energy of said emergency coolant liquid to drive said primary coolant liquid through said bypass conduit.
Dependencies are inferred from the claim text.