Patent ID: 6169273
Filing Date: 2001-01-02
Classification: F23K

Abstract:
A heating and storage system for emulsified fuel oil as made by mixing fuel oil with water comprising: a storage tank including a charging pump having a suction pipe disposed at a suction side of said charging pump and connectable with a delivery pipe of a plant or with an unloading hose of an oil tank truck, and having a feed pipe disposed at a discharge side of said charging pump and connected to said storage tank for pumping an emulsified fuel oil, as made by mixing fuel oil with water, into said storage tank; and an outlet pipe connected between said storage tank and a burner of a combustion equipment including furnace, boiler and combustion engines; the improvement which comprises: said outlet pipe branched with a feedback pipe connected to said suction pipe of said charging pump; and a recirculative heater connected in said feed pipe for dynamically recirculatively heating and warming the emulsified fuel oil as recirculated from said feedback pipe and as sucked from the delivery pipe of the plant or from the unloading hose of the oil tank truck at an optimum warming temperature for warming said emulsified fuel oil at a shortened contacting time between the fuel oil and said recirculative heater to prevent overheating and dissociation of said emulsified fuel oil (separation of water from the emulsified fuel oil) and to obtain a proper viscosity and fluidity of said emulsified fuel oil for a smooth delivery from said storage tank to said burner; said recirculative heater including a heating coil submerged in a heating drum connected in said feed pipe for directing a heating medium into said heating coil for heating the emulsified fuel oil as flowing in the heating drum through said feed pipe, said emulsified fuel oil recirculatively returning into said storage tank as pumped by said charging pump.