US566311A - Steam-boiler furnace - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

L. HALLBAUER.

STEAM BOILER FURNACE.

Patented Aug. 25, 1896.

% Q 1712/62? for,

L ouz'e jia/Mauer gy 211 9 J Wilnsses f// (No Model.) 2 Sheets-Sheet 2.

L. HALLBAUER.

STEAM BOILER FURNACE.

Patented Aug. 25, 1896.

I14 vex 1101' L OZIZS Hal/[blazer 2?%j 1-2 1 'lln nnnn Sir-anus PATENT throne LOUIS'HAIJ'LBAUER, OF MERIDEN, CONNECTICUT.

SPECIFICATION forming part of Letters Patent No. 566, 3 IL 1 dated August .2 5, 1 896. Application filed September 27 1 8 9 5. Seria1 NoP563j8 72. (-No model.)

To all whom itrrutyconcern:

Be it known that I, LOUIS HALLB'AUER, a citizen of the'United States, residing at Meriden, in i the county of New Haven and State of Connecticut,h-ave invented certainnew'and useful Improvements in Steam-Boiler Furnaces, of which the followingis aspecification.

This invention relates to furnaces more particularly designated as steam boiler furnaces, and the object of'the inventionis 'to provide an apparatus inwhich particles-of in one portion thereof willbe'constantly maintained, although thefires-in 'another'portion of the apparatus may be running low.

A' further object of the. invention is' to provide an apparatus inwhichthe feeding of the f uel-charnberswill have'no "appreciable efiect on the combustionin another portion of the apparatus, and the combustion thereby maintained without interruption and with less care on the part of the fireman.

In the accompanying drawings, forming part of thisspecifi'cation, Figure -1 -is-a-front viewof oneform of asteam boilerfurnace constructed to accomplish the purpose above set forth, and showing parts thereof indotted lines. Fig. 2' is a longitudinal;partly-sectionalview taken in line bi), Fig. 1,-showing one of the boilers and its-combustion-chamber. Fig. 3 is a topview of the steam-boiler furnace, a part thereof being broken away to show in section one of the combustion-chambers and its boiler in positionrel'atively thereto. Fig. 4 is a cross-sectional vie w, partly in full lines, taken in line a d, Fig.2. Fig. 5is

a longitudinal partly-sectional View taken in line 0 c, Fig. 1, and showing thesecondary or auxiliary combustion-chamber and its boiler imposition relatively thereto; 'andFi'g. 6 is a rear end view of the steam boiler fur- It is obvious that my invention can be enibodied in other formsofboilers and other closed in suitable masonry 13.

producing and disposing of products of combustion; but'for the purposes of this specificationthe same will be described in connection-with' a'steam-boiler furnace substantially similarto that shown.

My invention consists, in 'ajgeneral Way, of a series of 'steam boilers, oneor more ofsaid boilers havingafurnace-chamber consisting of aprimary or original combustion-chamber and 'a f uel-chamber or fire-box adjacent thereto,-and one or more of said boilers having a secondary combustion-chamber in which the products of combustion drawn from the original combustion-chamber are ignited by means ofa flame or highly heated products drawn from the fuel-chamber of the other boiler, together with means for 'conveyin g the products of combustion'from the original combustionchamber of the boiler to the secondary COIIlbustion-chamber, and in the preferred form thereof herein shown and described the steamboil'erfurnaceconsists of aseries of three boilers 10,11, andlzl, preferably disposed and in- These boilers are preferably disposed side by side, and the middleboiler 11 of the series is preferably somewhat larger than the other boilers, but is so disposed, however, that the upper portion thereof will preferably be on a horizontal plane with its adjacent companion boilers.

Below each of the smaller boilers 10 and 11 afurnace-ohamber is'forined in any suitable way, and embodies a combustion -chamber 14, which will behereinafter designated as the primary or original combustionchamber, and the usual fuel-chamber. orfirebox 15 adjacent to the combustion-chamber, and having the usual grate-bars 16, adapted "to support the fuel, and also'having an ashpit 17 below the fire-box.

Furnace-doors 18, provided withsuitable drafts 19,permitaccess tothe fuel-chambers l5, and through which doors the fuel is thrown to feed thefurnace. The ash-pits 17 are like- Wise provided-with similar doors.20 for removing the ashes therefrom and having suitable draft-regulators therein.

The usual bridge-walls 21 divide the combustion-chambers from the ash-pits andfireboxes and form a means of supporting one end of the grate bars16, which grate-bars are support-ed thereon and adjacent to theforward end of the fuel-chambers in any suitable way.

All of the boilers are provided with any desired number of flue-tubes 22, extending from head to head thereof, and through which the heated gases and products of combustion are adapted to pass from the rear ends of the combustion-chambers to the forward ends of the boilers.

The secondary or auxiliary combustionchamber is formed adjacent to and preferably underneath the middle boiler 11, and in this chamber the combustible gases and products of combustion that have not been consumed in the primary combustion-chambers are again ignited and practically consumed and the heat generated therefrom utilized for heating the water in the boiler 11. This secondary combustion-chamber is constructed in anysuitable manner, and communicates with the fuel-chambers by means of passage-Ways 26, formed through the walls of the masonry dividing the boilers from each other, and through which passage-ways the flame or heated products of combustion from the fuel-chambers are drawn to ignite the gases and products of combustion conducted to such secondary chamber.

In order to conduct the non-consumed combustible gases and products from the primary combustion -chambers 14 to the secondary combustion-chamber 25, so that the same may be substantially consumed and the heat generated therefrom utilized, at the forward end of each small boiler 10 and 12 a chamber 27 is formed, having openings at that portion thereof adjacent to the middle boiler 11, and these chambers 27 are connected with each other by means of downwardly-inclined passages 28, terminating adjacent to the lower portion of the forward end of the middle boiler 11 in a chamber 29, opening into the secondary or auxiliary combustion-chamber 25. These downwardly-extending passages 28 are in the nature of downtake-fiues leading from the chambers 27-into which the ends of the flue-tubes 22 open-to the chamber 29, opening into the secondary or auxiliary combustion-chamber 25.

The chambers 27 and 29 and downtake-fiues 28 are shown located outside of the masonry 13 adjacent to the front of the boilers; but it is understood that they might be built inside the same or at any other suitable place, if desired, and constructed in any suitable way; but in the construction shown, however, in the preferred form thereof, the end boilers 10 and 11 have their cylindrical walls extending beyond the heads 30 of the boilers and have openings cut therein at that portion adjacent to the middle boiler 11. A suitable casing 31 is provided for closing the ends of these chambers and extends downwardly therefrom adjacent to the forward end of the middle boiler 11, forming the downtake-flues 28 and the chamber 29, opening into the secondary or auxiliary combustion-chamber 25 beneath the boiler 11, the top wall of this chamber 29 being formed by the under wall of the middle boiler 11, extending forward beyond its head 32.

The front wall of the chamber 29 is provided with suitable dampers 33 for the admission of fresh air to the chamber 29 and the combustion chamber 25, and in the form shown these dampers are preferably of the usual rotary type.

Below the chamber 29 the secondary combustion-chamber 25 is provided with a suitable door 34 for the removal of ashes and the proper cleaning of said chamber.

The boilers are provided with suitable steam-pipes in connection with each other and in connection with the main steam-pipe 41. Suitable valves 42 are also disposed in the pipes 40, whereby the steam can be shut off from either one or both of the small boilers 10 and 12, so that steam can be used only from the main boiler.

Suitable connecting-pipes 45, provided with suitable valves 46, 47, 48, and 49, are provided for connecting the boilers with each other, whereby one or more boilers may be in operation while the remaining boiler or boilers are out of use. For instance, if the boilers 10 and 11 are in use the valve 48, connecting the boiler 12 with the boiler 11, would be closed and the valve 49 opened to permit the blow-off of the boiler 12.

Adjacent to the forward head of the boiler 11 a smoke-box 50 is constructed in any suitable way, into which the flue-tubes 22 from the main or middle boiler 11 open, and connected with this smoke-box is the usual smokestack 51 for conveying the smoke from the apparatus. The sides or side plates of this smoke-box may, if desired, constitute a part of the upper walls of the downtake-flues 28.

Any suitable means (not shown) for feeding the boilers may be provided.

In the operation of this improved apparatus the combustible gases or products of combustion generated in the primary or original combustion chambers 14 of the furnacechambers under the boilers 10 and 12 are carried by the draft to the rear ends of the boilers 10 and 12, and thence through the fines 2 in said boilers, in which the combustion thereof ceases, and the combustible gases and products are then carried into the chambers 27 at the forward ends of said boilers, from whence they are drawn downwardly through the downtake-flues 28 into the chamber 29, opening into the secondary or auxiliary combustion-chamber 25 below the middle boiler 12, and are drawn under said boiler and into said combustion-chamber 25 and the unconsumed combustible gases and products again ignited by the flame or heated products coming through the passage-ways 26 from the fire-boxes or fuel-chambers 14, air sufficient to support combustion being admitted into the combustion-chamber 25 through the dampers The remaining small portion of the unconsumed gases or products of combustion generated in the secondary combustionchamber 25 are then carried to the rear of the chamber and through the flue-tubes 22 in said middle boiler 11, and into the smoke-box 50, and then conveyed therefrom by the smokestack 51. Bythisimproved construction the unconsumed gases and products of combustion coming from the original or primary combustion-chambers 14: are substantially consumed when they reach the secondary combustion-chamber 25 and the heat thereof utilized adjacent to the middle boiler 11 for heating the water therein. Furthermore, by this construction either one of the furnaces, in connection with the boilers 10 and 11, may be fired independently of the other,whereby, by the running of one of the side boilers, the

-middle boiler can also be kept in operation,

and whereby the combustion in the secondary chamber is maintained at all times; also, by this improved construction, in case the fires adjacent to one of the primary combustionchambers are running low, the combustion in the secondary chamber would be main tained, and hence the apparatus requires less care on the part of the fireman than is ordinarily the case. Moreover, by this improved construction the flame or jet carried to the secondary combustion-chamber through the passage-way 26 from the fuel-chamber of one boiler will not be put out when the door of the fuel or combustion chamber of the opposite side boiler is opened to feed the fire-box.

Having thus described my invention, I claim-- 1. In an apparatus of the class specified, the combination of aseries of separate and independent boilers; one of said boilers having a furnace-chamber comprising a fire-box and a primary combustion-chamber adapted to heat the same; and the other boiler having an independent combustion-chamber without a fire-box, operatively connected with said furnace-chamber and adapted to heat said boiler by the combustible material drawn from the primary combustion-chamber when ignited by the flame or heated products of combustion drawn from the fire-box of the furnace-chamber, substantially as set forth.

2. In an apparatus of the class specified, the combination of a boiler having a furnacechamber comprising a fire-box and an original combustion-chamber; an independent second boiler having a secondary combustionchamber independent of and separated from the furnacechamber; means for conveying combustible products from the furnace-chamber to the secondary combustion-chamber; and means directly connecting the fire-box of the furnacechamber with the secondary combustion-chamber of the second boiler to conveya flame or heated products of combustion into said secondary combustion-chamber, to ignite the combustible products conveyed thereto from the furnace-chamber.

3. In an apparatus of the class specified,

the combination of a boiler having a furnacechamber comprising a fire-box and an original combustion-chamber; an independent second boiler having a secondary combustionchamber independent of and separated from the furnace-chamber; flues extending through said first boiler, for conveying combustible products from the furnace-chamber to the secondary combustion-chamber; a passageway directly connecting the fire-box of the furnace-chamber with the secondary combustion-chamber of the second boiler to convey a flame or heated products of combustion into said secondary combustion-chamber, to ignite the combustible products conveyed thereto from the furnacechamber; and flues extending through the second boiler and in communication with the secondary combustionchamber.

4. In an apparatus of the class specified, the combination of three independent boilers; a furnace-chamber below two of said boilers, and comprising a fire-boX and an original combustion-chamber; and a secondary combustion-chamber below one of said boilers, and independent of and separated from said furnace-chambers; means for conveying combustible products from the two furnace-chambers to the secondary combustion-chamber; and means directly connecting the fire-boxes of the two furnace-chambers with the secondary combustion-chamber to convey a flame or heated products of combustion into said secondary combustion -chamber, to ignite the combustible products conveyed thereto from the furnace-chambers.

5. In an apparatus of the class specified, the combination of a series of independent boilers' disposed side by side; furnace-chambers below the outer boilers thereof, and comprising a fire-box and an original combustionchamber; and the intermediate boiler having a secondary independent combustion-chamber below the same and intermediateof the furnace-chambers and separated therefrom; flues extending through the outer boilers and in communication with the furnace-chambers and downtake-flues, connecting said flu es and secondary combustion-chamber, to convey combustible products from both of the furnace-chambers of the outer boilers to said secondary combustion-chamber; and transverse passage-wa-ys directly connecting both fire-boxes of the furnace-chambers with the secondary combustion chamber to convey a flame or heated products of combustion to said secondary combustion-cham ber, to ignite the combustible products conveyed thereto from the furnace-chambers.

6. In an apparatus of the class specified, the combination of a series of boilers disposed side by side, the outer boilers of the series hav ing furnace-chambers below the same comprising original combustionchambers and fire-boxes, and the intermediate boiler of the series having a secondary combustion-chamber below the same and independent of and separated from said furnace-chambers; each of said outer boilers having flues extending therethrough and in communication with the furnace-chambers, and having a chamber adj acent to one end thereof into which said flues open; a chamber adjacent to and opening into the secondary combustion-chamber; flues connecting the chambers adjacent to the outer boilers with the chamber opening into the secondary combustion-chamber; and passageways directly connecting the fire-boxes of the furnace-chambers with the secondary combustion-chamber to convey a flame or heated products of combustion to said secondary combustion-chamber, to ignite the combustible products carried thereto from the furnacechamber.

7. In an apparatus of the class specified, the combination of a series of independent boilers disposed side by side, the outer boilers of the series having furnace-chambers below the same comprising original combustionchambers and fire-boxes, and the intermediate boiler having a secondary combustionchamber below the same and independent of and separated from said furnace-chambers; each of said outer boilers having flues extending therethrough in communication with the f urnace-chambers, and having a chamber adjacent to one end thereof into which the said flues open; a chamber adjacent to and opening into the secondary combustion-chamber; means for admitting fresh air to said combustion -chamber; flues connecting the outer boiler-chambers with the chamber opening into the secondary combustion-chamber; and passage-Ways directly connecting the fireboxes of the furnace-chambers with the secondary combustion chamber to convey a flame or heated products of combustion to said secondary combustion-chamber,to ignite the combustible products carried thereto from the furnace-chambers.

8. In an apparatus of the class specified,

the combination with a series of independent boilers disposed side by side, the outer boilers thereof having furnace-chambers below the same, comprising original combustion-chambers and fire -boxes, and the intermediate boiler having a secondary combustion-chamber below the same and independent of and separated from said furnace-chamber; each of said outer boilers having flues extending therethrough in communication with the furnace-chambers, and having a chamber adjacent to one end thereof into which said flues open; a chamber adjacent to and opening into the secondary combustion-chamber; flues connecting the chambers adjacent to the outer boilers with the chamber opening into the secondary combustion-chamber; passage-ways directly connecting the fire-boxes of the furnacechambers with the secondary combustion-chamber to convey a flame or heated products of combustion to said secondary combustion-chamber, to ignite the combustible products carried thereto from the furnace-chambers; flues extending through the intermediate boiler and in communication with the secondary combustion-chamber; and means adjacent to the downtakeflues, into which the flues of the intermediate boiler open to convey the smoke from the secondary combustion-chamber.

9. In an apparatus of the class specified, the combination of three independent boilers disposed side by side, the intermediate boiler thereof extending below the outer boiler; a furnace-chamber below each of the outer boilers thereof, and comprising a fire-box adjacent to one end thereof and a combustionchamber in the rear thereof, and the intermediate boiler having a secondary combustion-chamber below the same and extending from end to end thereof; alongitudinal wall separating the furnace-chambers from the secondary combustion chamber; flues extending through the outer boilers of the set and communicating with the original combustion-chambers in the rear of said boilers; downtake-flues at the forward ends of each outer boiler into which the boiler-flues open, said downtake-flues opening into the secondary combustion-chamber beneath the intermediate boiler; transverse passages extending through said walls and directly connecting the fire-boxes with the secondary combustionchamber; flues extending through the inner boiler of the set and communicating with the secondary combustion-chamber in the rear of said boiler; and a smoke-box at the for ward end of the intermediate boiler, and into which the fines thereof open.

LOUIS HALLBAUER. 'Witn esses W. H. LEWIs, J OHN Q. THAYER.

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