US1136828A - Furnace. - Google Patents

Description

M. 1. MOONEY.

FURNACE.

APPLICATION r1=.ED1uLY15,1912.

Lj@ Patented A191120, 1915.

.Y Zi y v' i Zi X? I f i j a i 4 l Macnee.

.MQNEBOE I. MOYONEYQOF CINCINNATI, OHIO.

FURNACE.

ppleation. filed .Tmly 15, 1912. Serial T580. 709,535.

To all whom t may concern:

Be it known that I, MONROE J. MooNEY, a

l citizen. of the United States, residing at lel Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Furnaces, of which the following is a speciicaticn.

My invention relates tol an improvement in furnaces wherein a disintegrated. fuel is distributed over the fuel bed, in a series of longitudinal sprays, Injector principles are.

utilized to feed the fuel through the nozzles conveying and distributing the same by fluid pressure, andfsi-phonic action. The vapcrr` ,fluid pressure may be-.air or steam, or a combination of. both when a bituminous fuei g conduits..

Y is used., dependent largely npon the percentage of "'moisture and volatile `matter contained in the fuel. 'J

The velocity and density of the fluid pressure controlling the volume' of fuel .feed and vthe hydro-carbon mixture necessary to produce .the proper combustion and'maintain the thermal units within the furnace, is-

commensurate with the boiler pressures.

4The feed is automatically controlled by the furnace draft and boiler, pressure, offeringI a material economy in fuel consumption. as well as an increased efliciency' togetherx with a substantial elimination of smoke.

The object of my invention is to inject a disintegrated bituminous fuel with a vaporsous fluid pressure into the combustion chamberofna furnace in a series of longitudinal Isprays with the velocity of the fuel feed and vvolume of the fluid pressure automatically controlled to'produce a proper Icombustion of the hydro-carbon mixture proportional to the boiler pressure,.to maintain a constant boiler pressure, or variable according to the exigency of pressure consumption.

Another object of my invention is to provide a furnaceof Dutch oven type witha series of nozzles combined with the upper' surface wall, to inject jets of intermiixedv fluid pressure' and disintegrated bituminous fuel over the fuel bed. Y

l The features of my invention will be more fully set forth in the description of the ac.-v company' g drawings, forming a partV of this specification, in whichz'- Figure 1 is\ a central lvertical section through the fire box of the furnace as applied to a boiler. Fig. 2 is a central vertical section on line w, Fig. 1, illustrating dia-y i Specification of Letters Patent.

grammatically the stack damper regulator governed by the clraft and boiler pressures.

1, 2 represent the .side walls of'a boiler furnace.

3 represents hearth wall.

5x represents a horizontal type of boiler supported upon the side walls.

'lhe furnace is of a Dutch oveny type` with the lire:- chamber beneath the boiler insteadl of projecting in front of the boiler customary in some types of Dutch oven furnaces. The Astyle of furnace however, is optional., conditioned only in the provision of a reverberatory walll over the fire chamber, primarily for the reception of the fuel delivery vthe front wall and f1 the 13 represents conduits through which the"- fue-l andi air blast is conveyed, each having a longitudinal slot 111 formed therein di' rected toward the combustiorichamber 11.

The conduits serve as nozzles for jetting' sprays of fuel and vaporous fluid intothe combustion chamber. 'Thev rear end of each conduitis provided with a stud projection 15 seated within an arch plate 16, forming the terminal for the furnace roof 10" serving as a reinforcement for the roof as well as an edge' lining therefor. The lifev of the arch is materially lengthened, as the arch plate 16 is a metal plate integral theentire width of arch, and remotable, enabling the same to be readily renewed.

The forward end of the conduit, exterior of the furnace, is provided with an injector. 17, in which 18 represents the fuel supply conduit, and 19 the fluid' furnace conduit, lthe pressure producing a siphonic action at the junction ofthe conduits 18 and 19, drawing the disintegrated fuel into the conduit 13.'. The fuel conduit 18 leads to asuitable hopper, which is preferably common to.V all the fuel delivery conduits of the nozzles of the furnace.

he nozzles are all duplicates, each prov20 for manual independent control of each v nozzle.

21 represents a pipe manifold connected with the various nozzles of the series, which is connected with the supply pipe 22.

The fluid admitted into the supply pipe 22 is automatically controlled by draft and boiler pressures. This is accomplished by connecting the valve 23 which controls the iuid within the supply pipe 22, with automatic damper regulator mechanism. This mechanism is diagrammaticallyillustrated herein, and its specific details of construction may be of any design now commercially approved and well known in the art. 24.represents a cylinder provided with a piston or plunger element, actuated by the steam pressure of the boiler; the pipe connection between cylinder and boiler are omitted in the drawings, but it may be of any well known form. In fact, any means may be employed for producing motion con'- trolled` by the steam pressure of the boiler.

25 represents a' piston rod connected with a bell crank lever26 through an intermediate vlink 27. One arm ofthe belll crank lever is provided with a weight 28, adjustable thereon, by which the pressure control is regulated.

29 represents va connecting rod, 4one end of which is connected to the bell crank lever 26, with its opposite end connected to a rock shaft 30, suitablyv journaled and projected into the boiler flue 31;

32 represents a damper plate secured to the shaft 30, for regulating thedraft. The boiler pressure actuates the bell-crank lever 26 transmitting motion to the connecting rod and rock-shaft 30, swinging the damper 32 within the furnace flue, resulting in the proper regulation of the furnace draft.

33 represents a connecting rod providing an intermediate connection between the damper shaft 30 and the stem of the valve 23,A wherebyy simultaneous control of the damper 30 and iuid pressure valve 23 is obtained, producing a correlative operation, in

increasing, decreasing, or maintaining the thermal umts of the furnace, cordinate with the boiler pressure. Thus, when the draft is opened the fuel supply to the furnace is increased and vice versa, the air or vaporous fluid pressure, fuel and draft conditions correlatively proportioned to support perfect combustion at all times, whether for a high or low degreeof heat, and a definite boiler pressure approximately maintained, at aneconcmy in fuel consumption, and substantial elimination of smoke and with the services of a skilled firemandispensed with.

It is obvious -that the general details of construction herein illustrated may be variously modified without effecting a departure from my invention, and the nozzle spray may be other than of longitudinal form.

Having described my invention, I claim 1. In a furnace, a combustion chamber, an arch forming the top of said chamber having a coincident liner plate at the rear end thereof, a series of nozzles longitudinally embedded in said arch supportingly engaged in said liner plate, each' longitudi lnally apertured .to jet a spray of fuel into'-` vsaid combustion: chamber, and an injector on each nozzle exterior of the furnace cornbining two conduits, 'a fuel supply and a uid pressure for advancing the fuel within l the nozzle.

2. In a furnace, a combustion chamber, an.

arch forming the top of said chamber havj ing a coincident liner plate at the rear end' f pressure advancing the fuel within the nozzle, and a valve controlling the Huid pressure to the injector.

In testimony whereof, T have hereunto setmy hand.

MONROE J. MOONEY.

Witnesses:

OLIVER B. KAISER, CLARENCE B. Fos'rER.

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