Furnace with flue gas condensate neutralizer
AssigneeHeil-Quaker Corporation
InventorRonald S. Tomlinson
Life of this patent
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Abstract
A high efficiency domestic furnace incorporates means for separating and neutralizing flue gas condensate. Acidic condensate from the flue gas products of combustion is neutralized by contact with neutralizing material in a housing through which the condensate is flowed. The use of the neutralizer in connection with a high efficiency domestic furnace permits discharge of the condensate directly to the household drain. The neutralizer is arranged to be self-flushing and defines a serpentine, series flow path and is arranged to discharge the neutralized condensate as a result of the entry of additional acidic condensate at its inlet.
Claims10
In a domestic furnace having means for burning fuel resultingly producing gaseous products of combustion and means for exhausting the gaseous products of combustion wherein acidic condensate may result from cooling of gaseous acid-forming components in the gaseous combustion products, the improvement comprising:
- means for neutralizing the acidic condensate;
- means for conducting acidic condensate from the exhausting means to the neutralizing means;
- and
- discharging means for discharging the neutralized condensate from the neutralizing means.
In a domestic furnace having means for intermittently burning fuel resultingly producing gaseous products of combustion, and means for exhausting the gaseous products of combustion wherein acidic condensate may result from cooling of gaseous acid-forming components in the gaseous acid-forming components in the gaseous combustion products, the improvement comprising:
- means for neutralizing the acidic condensate, said neutralizing means being connected to receive condensate from said exhausting means and responsive to the intermittent operation of the furnace for periodically flushing a quantity of condensate therethrough.
In a domestic furnace having a fuel burner, a heat exchanger for receiving gaseous products of combustion from said burner, and exhaust means including an exhaust blower for creating a negative pressure within said heat exchanger and duct means connecting said heat exchanger with said blower, the improvement comprising:
- separating means connected in said exhaust duct ahead of said blower for separating acidic condensate which may result from cooling of gaseous acid-forming components in the gaseous products of combustion, said separator including an outlet for discharging said condensate;
- and
- neutralizing means for neutralizing acidic condensate contained therein, said neutralizing means having an inlet and means connecting said inlet with said separating means outlet for receiving a gravitationally induced flow of the acidic condensate therefrom, said separating means, blower, and neutralizing means being arranged such that operation of said blower creates a negative pressure at the inlet of said neutralizer.
Dependencies are inferred from the claim text.