Induction condenser

Claim 2

In combination with a stack a system for condensing vapors in gases emitted from the stack comprising a plurality of vertical registering low-pressure venturi units defining annular spaces between each of said units, said units being mounted in series for receiving air and a stream of emitted gases, each venturi unit of said system having a wide lower end, and a gently curved wall terminating in an upper end narrower than said lower end operating to induce a flow of ambient air into the system in a volume ratio proportionate to the ratio of the density of effluents entering the venturi to the density of the surrounding atmosphere, and means defining a gutter within and extending from the lower end of each venturi unit and including means for draining off condensate resulting from the condensing of gases within the venturi walls.

Claim 3

In combination with a stack a system for condensing vapors in gases emitted from the stack comprising a plurality of vertical registering low-pressure venturi units defining annular spaces between each of said units, said units being mounted in series for receiving air and a stream of emitted gases, each venturi unit of said system having a wide lower end, and a gently curved wall terminating in an upper end narrower than said lower end operating to induce a flow of ambient air into the system in a volume ratio proportionate to the ratio of the density of effluents entering the venturi to the density of the surrounding atmosphere, and means defining a gutter within and extending from the lower end of each venturi unit and including means for draining off condensate resulting from the condensing of gases within the venturi walls.

Claim 4

In combination with a stack a system for condensing vapors in gases emitted from the stack comprising a plurality of vertical registering low-pressure venturi units defining annular spaces between each of said units, said units being mounted in series for receiving air and a stream of emitted gases, each venturi unit of said system having a wide lower end, and a gently curved wall terminating in an upper end narrower than said lower end operating to induce a flow of ambient air into the system in a volume ratio proportionate to the ratio of the density of effluents entering the venturi to the density of the surrounding atmosphere, and means defining a gutter within and extending from the lower end of each venturi unit and including means for draining off condensate resulting from the condensing of gases within the venturi walls.

Claim 5

The system of claim 1 wherein the venturi units all have substantially the same throat diameter at their narrow upper ends.

Claim 6

The system of claim 1 and including a dispersing ring mounted above the last venturi unit in the system for dispersing gases passed through the system.

Claim 7

The system of claim 1 wherein at least one of said venturi units has a plurality of spiral vanes mounted therein for enhancing the mixing of induced air with the emitted gases.

Claim 8

A vapor condensing system adapted to be mounted above conduit means for condensing vapors in gases emitted from such conduit means, comprising a plurality of vertically registering low pressure venturi units defining annular spaces between each of said units, said units being mutually secured in series for receiving air and a stream of emitted gases, means for mounting the units above conduit means, a narrowed upper end of each but the uppermost of said venturi units being coaxially received within a widened lower end of a next higher venturi unit, all of said venturi units being of circular horizontal cross section and having a gently inwardly and upwardly curving wall for smooth gas flow therethrough, the uppermost of said venturi units having a dispersing ring mounted at its upper end, each of said venturi units having an inturned loWer end edge defining a peripheral gutter within and extending from the lower end of the venturi unit, the gutters of all of the venturi units communicating with vertical common drainage means for receiving and discharging condensate formed within the venturi units.

Claim 9

A vapor condensing system adapted to be mounted above conduit means for condensing vapors in gases emitted from such conduit means, comprising a plurality of vertically registering low pressure venturi units defining annular spaces between each of said units, said units being mutually secured in series for receiving air and a stream of emitted gases, means for mounting the units above conduit means, a narrowed upper end of each but the uppermost of said venturi units being coaxially received within a widened lower end of a next higher venturi unit, all of said venturi units being of circular horizontal cross section and having a gently inwardly and upwardly curving wall for smooth gas flow therethrough, the uppermost of said venturi units having a dispersing ring mounted at its upper end, each of said venturi units having an inturned loWer end edge defining a peripheral gutter within and extending from the lower end of the venturi unit, the gutters of all of the venturi units communicating with vertical common drainage means for receiving and discharging condensate formed within the venturi units.

Claim 10

The system of claim 5 wherein the drainage means comprises a plurality of vertical tubes having openings communicating with said gutters, said vertical tubes also constituting supports for the venturi units and dispersing ring.

Claim 11

The system of claim 5 wherein at least one of said venturi units has a plurality of spiral vanes mounted therewithin for imparting swirling motion to air induced into the system to enhance condensation by mixing the gases within the venturi unit with entrained air, said spiral vanes extending only from the lower end of the venturi unit to the upper end of the venturi unit and having their radially inner edges spaced from any registering unit.

Claim 12

The system of claim 5 wherein all said venturi units have the same throat diameter at their narrowed upper ends.

Claim 13

The system of claim 5 wherein the venturi units are formed of strong light weight material produced from glass fibers.