Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Utility Patent
1998-10-31
2001-01-02
Walberg, Teresa (Department: 3742)
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
C392S449000, C392S465000, C165S163000
Utility Patent
active
06169273
ABSTRACT:
BACKGROUND OF THE INVENTION
A conventional fuel oil such as heavy oil may be processed to become an emulsified fuel oil by adding water and emulsifying agent therein for saving fuel and reducing hazardous combustion exhaust gases.
As shown in
FIG. 3
, the emulsified fuel oil as stored in the storage tank T should be warmed by a heater such as a heating coil or a suction heater H provided in the tank T in order to maintain a proper viscosity and fluidity for the fuel oil which can thus be pumped to a burner Br of a furnace or boiler for combustion use. However, the emulsified fuel oil, contacting the heating coil or pipe of the heater H with high skin temperature on the pipe surface, may be overheated to cause separation S of water from the emulsified oil which was previously emulsified and well mixed, thereby deteriorating the emulsified fuel oil or even causing burning difficulty.
The present inventor has found the drawbacks of the conventional emulsified fuel oil storage system, and invented the present dynamic recirculation system for heating and storing emulsified fuel oil.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a dynamic recirculation system for heating and storing emulsified fuel oil including: a recirculative heater provided on a feed pipe for feeding emulsified fuel oil into a daily storage tank, and a feedback pipe connected to an outlet pipe of the tank for directing a returning oil streamflow to be heated and warmed by the recirculatvie heater at a predetermined optimum temperature for recirculating and storing the warm emulsified fuel oil for preventing overheating of the emulsified fuel oil and preventing separation of water from emulsified fuel oil, thereby maintaining a stable homogeneous emulsified fuel oil for a better combustion in a furnace or boiler.
REFERENCES:
patent: 3561645 (1971-02-01), Hopkins
patent: 3874399 (1975-04-01), Ishihara
patent: 4844927 (1989-07-01), Morris, II et al.
patent: 6002838 (1999-12-01), Nir
Campbell Thor
Fueltec Energy Technology Corporation
Walberg Teresa
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