Coil tube heater for a used-oil fired furnace

Details Coil tube heater for a used-oil fired furnace Coil tube heater for a used-oil fired furnace

1999-04-12

2000-07-11

Lazarus, Ira S.

Liquid heaters and vaporizers

Heat transmitter

1223672, 110234, 110238, F24H 100

Patent

active

060857013

ABSTRACT:
A coil tube heater for a multi-oil burner in a used-oil fired furnace utilizing an air to liquid heat exchanger and being fabricated from tubing formed into a tightly coiled cylinder having a plurality of coil loops that are not fixed to any of the adjacent loops to allow for unfettered heat expansion. The coil tube heater is provided with a ceramic sleeve interposed between the burner assembly and the coiled heat exchanger to focus the flame into a tight configuration toward the target positioned at the rear of the combustion chamber. The coil tube heater is provided with a circulation system that has a first circulation loop having a first circulator that moves a liquid transfer medium through the coiled heat exchanger to a buffer tank or directly to the load. A second load loop has a second circulator that draws heated transfer medium from the outlet line leading from the coiled heat exchanger to a load cell before injecting the cooled transfer medium into the inlet line leading back into the coiled heat exchanger.

REFERENCES:
patent: 3529579 (1970-09-01), Wanson
patent: 3734064 (1973-05-01), Cancilla et al.
patent: 4453498 (1984-06-01), Juhasz
patent: 5494025 (1996-02-01), Smoker et al.
patent: 5582137 (1996-12-01), Brady et al.

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