US598997A - Steam-boiler furnace - Google Patents

Description

(No Model.) 2' Sheets-Sheet -1.

J.. V. KENNY.

. STEAM BOILERPURNAGE. No. 598,997. Patented Feb. 15,1898;

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UNITED STATES PATENT OFFICE.

JAMES v. KENNY, OF LINCOLN, NEBRASKA.

STEAM-BOILER FURNACE.

SPECIFICATION forming part of Letters Patent No. 598,997, dated February 15, 1898. Application filed May 22, 1897. Serial No- 637, '756. (No model.)

To all whom it may concern-.-

Be it known that I, JAMES V. KENNY, a resident of Lincoln, in the county of Lancaster and State of Nebraska, have invented certain new and useful Improvements in Steam-Boiler Furnaces; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in steam-boiler furnaces, and more particularly to such as employ water-tubes, theobject of the invention being to provide a vertical Water-tube-boiler furnace which shall be selfcont'ained and in which the tubes and waterspace shall be so arranged as to result in an entirely free and uninterrupted circulation, and to so arrange the apparatus as to provide a large area of steam-space surrounded by a superheater.

With this object in View the invention consists in certain novel features of construction and combinations and arrangements of parts, as hereinafter set forth, and pointed out in the claim. I

In the accompanying drawings, Figure 1 is a vertical cross-section of a steam-boiler furnace embodying my improvements. Fig. 2 is a horizontal cross-section.

A represents a suitable base on which my improved boiler-furnace is located, said base constituting also an ash-pit A,over which the grate A of the fire-chamber is located.

In constructing my improved furnace I employ an outer shell 1, within the lower por-. tion of which and removed a short distance therefrom a comparatively short shell 2 is located and constitutes the vertical wall of. the combustion-chamber 3, said shells 1 and 2 being connected by means of bolts 4 and the space 5 between them constitutingawater compartment or jacket. A crown plate or dome 6 is secured at its lower peripheral edge to the upper end of the shell 2 and'is made with a central opening 7, surrounded by an annular flange 8, to which the lower end of a short flue 9 is securely riveted. A flue-plate 10 is disposed above the short flue 9 and provided with a central opening 11, surrounded by a depending annular flange 12, to which the upper end of the short flue 9 is secured.

The flue-plate 10 is also made with a'number of holes 13 for the accommodation of the lower ends of the boiler-tubes 14, which latter are arranged in annular form, as most clearly shown in Fig. 2. The lower ends of the tubes 14 communicate with the space between the flue-plate 10 and the crown plate or dome 6, which space constitute'sa Water-chamber 15, communicating at its lower end with the annular water-space 5,surrounding the combustion-chamber. 14 communicate with holes inan upper flueplate 16, the latter being adapted to close the upper end of the vertical flue 17, formed by the annular series of water-tubes 14.

The annular series of tubes 14 is surrounded I combustion-chamber and at its upper end with the steam-dome 21. The steam-dome is quite large and closed at its top by means of a cover 22, securely fixed at its periphery to the upper end of the outer shell 1 by means of an angle iron ring 23 and bolts 24. The top or cover of the steam-dome is also suitably braced by means of adjustable tie-rods 24 constructed in sections connected together by means of turnbuckles 25, one end of each tie-rod being secured to the cover 22 and the other end to the central portion 26 of the upper flueplate 16. Holes or openings 27 are made in the shells 1 18 at several points (three being shown in Fig. 2) near the upper end of the water-jacket formed between said shells, and within the central space or flue 17, at a point some distance below the openings or outlets 27, a deflector 28 is located and supported by means of a rod 29, attached at its upper end to the upper flue-plate 16, said deflector being adapted to cause the heat and products of combustion arising through the short flue 9 from the combustion-chamber to be directed among the water-tubes 14 to heat them. Af-- ter circulating among the Water-tubes and in The upper ends of the tubesthrough the smoke-jacket will act as a super- 1 heater for the steam in the steam-dome and also for the water contained in the b oiler, es; pecially the water contained in the space between the shells 1 and 18. I prefercalso to provide holes at below the smoke-jacket and communicating with the space occupied; by the tubes, whereby to permit soot and ashes v 5 atent, .s..

b btbe omel dged etween. t e ubes and on the lower tube-plate to be blown oi.

A su tabl team-pipe 3 mad be om.- municate with the steam-dome, and a, suitl wa ergege 34 and a e eatthg ge 3, w l s be pie i e d ni he bew b whi h t e ewee m eetee m y e also ade e e it ssb W bt e e eit' eeeeet hem: er 15, e e i t Th hel lW l be provided with a normally closed manhole38, whereby se st. m be ead bad ethe We.- ter space or charnb erlo, and a manhole 39=wi1l be p de for h team r rur ee tethe eeve of the steam d ome.

Thelower end; of the water spaceorchamber w h sur u s the c m ust on-member, will be providedwith a blow-off pipe 0.

My i t d. bo e is se ten ee, and e u es d wet t-sp ee t e e arran ed a to aiford an entirelyffree and uninterrupted circulation. By my improved arrangeln entit large area, of steam-space is provided, s uru e by sm k eek eb acts s a superheater and results in the formation of dry steam. My improved construction is particularly adapted for high pressure, will operate to effect the quick formation of steam, and the parts are readily accessible for the purpose of cleaning, 8pc.

" My improvements. are simple in construction and effectual in all respects in the performance of its functions.

Various slight changes might be made in the details of construction of my invention Withou depart ng rom t Spirit thereof limiting itsscope,'and hence I do not wish to v limit myself to the precise details herein set 1 forth.

Having fully described my invention, What I aim a new, desire o. sec re by Letters lb steeut-beil rfiurnaee, he ombinat on with ebbntbllStibn-ebamber at one end; and a am-dome ettbe ether, f a series. of waterebesd spesed betweentbe c mbust n-che 3 beer an tbee eememe, a mmunica ion i twee t pa e ee ep ed: byt e W er-tube and the combustion-chamber, a smoke-jacket t :r 11, ,d gtb st am-demand the water- 1 tu es, and hav g n outlet at its lo r n sa d, sme terj eket omm nicatingw th. t e

a spe eee np ed by the w ter-tub g' t the up- 1 per nd tbet efi a n e s ommun c l with sa d spateeee piee; bythe w ter-tu let poin s low he mek -i ek subst t elly as, set f rth- In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

JAMES v. KENNY.

tn sses:

F'EANK ARKS, SMt -t,

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