US1466771A - Steam-boiler furnace - Google Patents

Description

Sept; 4, 1923. 1,466,771

' J. N ToMEs A STEAM BOILER FURNAGE Filed sem.' 19,`1921 2 sheets-sheet 1 E] l t JN Tomes,

J. N. TOMEs STEAM BOILER FURNACE.

sept. 4*, 1923. f 1,466,771

Filed sept. 19 1921 2 lsheets-sheet 2 Patented Sept. 4?, 1923.

,fairen JOSEPH N. TOMES,.OF BUFFALO, ll'E YORK,

OONSUI'JIER AND FUEL ECONGBIIZER CO.,

aerien or New YORK i? F i C E LPAI STEAM-BOILER F'RNACE.

Application filed September 19, 1921. Serial No. 501,684.

VTo aZZ w/wm t may concern.'

Be it known that I, JOSEPH N. ToMns, a citizen of the United States, residing at Buffalo, in the county of Erie and State or New York, have invented certain new and useful Improvements in Steaml3oiler Furnaces; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as :will enable others skilled in the art to which it appertains to y make and use the same.

lThis invention relates to a steam boiler furnace of smokeconsuming construction.

The main object is to improve the construction and render more eflicient in operation the furnace disclosed in my application for Letters Patent of the United States Serial N o. 824,866, filed September 19, 1919. Y A particular aim Ais to provide a means whereby steam may be generated in less time than it requires in the apparatus of said pending application.

Another aim is to provide means whereby heated air from the irebox may be Supplied by the fan employed to the boiler, and a vent means for combination with said means.

Additional objects and advantages will appear hereinafter from the description taken in connection with the accompanying drawings illustrating the practical embodiment.

In said drawings Figure l is a front elevation of the iinproved furnace;

Figure 2 is aview thereof principally in longitudinal and vertical section; and

Figure 3 is a vertical sectional view on the line 3*-8 of Figure 2.

Referring specifically to the drawings wherein like reference characters designate.

like or similar parts, a disclosure in the main is similar to that of the pending application referred to. A casing A is employed within which a boiler B is disposed above a grate C. lIhe door to the irebox is shown atl) while the door to the ash pit is `illustrated at E. Grate C is supported by a fire wall l?. Y rllubes G are disposed longitudinally of the boiler B at their front ends communicating with a smoke box I-I from which the stack extends at I. A damper J is provided in said stack I. A pipe or flue K communicates at one end with the stack I and at its other end with the ash pit.

A fan is provided at L, operable to induce air through a discharge pipe M, having a damper N therein, and which leads to a header O. The rear ends of the tubes G are open and the boiler is spaced from the rear wall to provide a chamber P. Branch pipes 2 extend through the rear wall of the casing A into the spacey I) and terminate in line with and relatively close to the open rear ends of the tubes G.

rIhe steam dome is indicated at B and leading therefrom to-a pipe R which communicates with the header O. Pipe R has a valve S therein.

In this instance, the air intake pipe for the fan AL, which is shown at 4, extends upwardly, and is then elongated inwardly, being mounted in the rear wall of casing A and having its intake end disposed over or relatively close to the irebox so that heated air will be drawn in as the fan L operates. Cooperating with this intake, in order to supply proper draft, a pipe or stack cured in the casing with the space P and to the atmosphere above the casing. This stack 6 is unobstructed throughout, as shown. Also in this instance swivel or other valves and 8, are provided respectively, in the doors I) and E, in order that they may be opened, when desired, yto enable air to be drawn in therethrough.

` In operation, with a fire on the grate C, fan L is operated, which will draw in air through the pipe 4-5 from the iirebox, which will thus berheated, and discharge it through pipes M, header 0, and pipes 2, into the pipe G and the fluevK. During this operation 0f course the valve S is closed. As' the heated air passes the gap between pipes G and 2, a vacuum is created, which draws the products of combustion into the pipe G and iue K. Due to the draft created in the furnace, products of combustion will bypass into the flue K and be discharged under the grate, so as to pass through the lire and thus become completely consumed. In'the pending application referred to, the air drawn in andr discharged through the pipe 2, is cold, which retards generation of steam. In this instance, the heated air is discharged in said pipe 2 and I find that steam can be generated in a much shorter period of time. The stack 6 provides the 6 is se-' A, in communication necessary Vent for elicctive epera'ion o"A the its intake end adjacent the pipe 5 in conveying heated air from the ive healed air tht-ret ein, a

lire box. 'ans lor said heated aii leading When steam is generated, the valve N may lan haring L be closed and Valve S opened, so that steani will pass from the dome l through the pipe l vinto the headei (l, and he discharged through pipes 2 inte pipes 'G to ei'lcct a Vacuum at the gap between pipes 2 und fil for the saine purpose as the heated air. Valves 7 and 8 may be adjusted when additional dfzitt or air is desired.

My i1n rove1uents have been lf'ound very fdective in operation and to `give a *very zcnsiderable saving' in the quanti@v el" coal eu' other iliuel Which is used.

Changes in the spirit und scope may be resorted to.

What is claimed isz-- l. A, furnace o'l the class described having' :L steam boiler. means for passage ot air therethrough providing a jrap Within he furnace to induce products of embusion through the boiler. said means being-` in Iominunication with the Airebox to conve); heated eir therefrom, and a vent means to? the liurnai-e te Cooperate with said means and haring' its discharge end :it said gap.

2. furnace ot the class described havinf;` a steam boiler. a casing vwith a wall spaced Ytroni the boiler to provide an outlet space for products ol combustion7 a stack leading 'freni said splice? a lian, an intake pipe tor said 'tan extending through said A. l t

a plurality of tubes wall into said space through the tubes of the outlet liuc means with Which boiler7 and said boilerl tubes communicate.

3. er Ylurnzlice olf the class described having a steam boiler7 :i with a Well spaced troni the boiler te provide an outlet space ier products of coinl'iustion, a stack leading treinsaid space, a fen, an intake pipe for said tan extending through paid wail and haring4 its intake end adjacent the Firebox to iefeive heated air therefrom, a discharge means vtor said heated air leading from the 'ien having a pluralit)v of tubes passing through said wall into said space and terniinetiug short of the tubes oit the boiler to iuovide gaps to induce products et combustion through the tubes ot the boiler, outlet l'iue means with which said boiler tubes communicate, a flue leading from said outlet lue means to the ashpit, and the ashpit and iirebox doors haring air inlet Valves.

ln testimony whereof l alliX my signature in presence el two witnesses.

JOSEPH N. TOMES. llitnesses JOHN ANDERSON, GEORGE MomuseN.

Images