US532105A - Siphon-furnace - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

H; $IEBEN & M. WAGNER.

SIPHON FURNACE.

No. 532,105. Patented Jain. 8,1895.

mmwk (No Model.) 2 Sheets-Sheet 2.

H. SIEBEN & M. WAGNER. SIPHON FURNACE.

No. 532,105. Patented Jan. 8, 18%.

\\\\i\\ \x Q .NlTED STATES HENRY SIEBEN AND MATTHEVV- S'I'P'HON STPEGIFIGATION forming part of Letters Patent No. 532,105, dated January 8, 1895.

Application filed September 1, 1894. Serial No. 521,895. (No model.)

To ctZZ whom it may concern:

Be it known that we, HENRY SIEBEN and MATTHEW WAGNER, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Siphon-Furnace, of which the following is a specification.

This invention relates to steam boiler and other furnaces, and its object is to provide a furnace of improved construction and mode of operation wherein a thorough combustion and destruction of unconsumed particles, of smoke, &c., are effectively accomplished.

The invention consists substantially in the construction, combination, location and relative arrangement of parts, all as will be more fully hereinafter set forth, as shown in the accompanying drawings and finally pointed out in the appended claims.

Reference is had to the accompanying drawings and to the various views and reference signs appearing thereon, and wherein- Figure 1 is a view in vertical longitudinal section of a construction embodying our invention. Fig. 2 is a vertical transverse sectional view, taken on the line 2, 2, Fig. 1. Fig. 3 isa horizontal sectional-plan view, taken on the line 3, 3, Fig. 1. Fig. 4 isa vertical transverse sectional view, taken on the line 4, 4t, 1

Fig. 1. Fig. 5 is a detached detail view of the steam injecting nozzles. V

The same reference sign is used to designate the same part wherever it may occur throughout the several views.

In the drawings reference numeral 6 dcsignates a steam or other boiler, mounted in suitable settings 7, which form a furnace chamber 8. The bridge wall 9, forms, with the front wall of the other boiler setting, the

a passage way 14, extending the whole length thereof and communicating at the lower end thereof with the ash pit through a series of openings 15, as shown, and at the upper-end thereof with the fire space through a series of openings 16. large area at the lower end thereof, which Passage way 14: is. made of gradually diminishes toward the upper end 'as most clearlyshown in Fig. 1. A special construction of the bridge Wall at the endof passage way 14 delivering into the fire space is provided, wherein a block 17 is arranged-upon the upper surface of a portion of the bridge transversely across the furnace chamber. Said block is constructed trapezoidalin cross section, the two non-parallel sides being inclined toward each other from the base, forming a prismatic shaped block. One side of block 17 forms a wall of the reduced passage Way 14. The other wall is formed by the brick of the bridge wall and is inclined to correspond to the side of block 17. Openings 16 are formed by suitably spaced blocks 18, resting partly-on block 17 and partly on 19 extending entirely across the furnace chamber and resting upon blocks 18. The space between contiguous blocks 18 is filled with any suitable composition of cement as shown at 20, up to the point where passage way opens into the fire space. The ends of block 18 presented toward the fire space are preferably beveled in opposite directions, as shown, see Fig. 1, and the block 17 and plate 19 are preferably curved lengthwise as shown, for a purpose presently to be described.

In the rear portion of the furnace chamber 8, we arrange in any suitable manner funnelshaped hoods, 20, 21. We have shown a pair of such hoodsar-ranged with the mouths of the funnelspresented toward the front end of the furnace chamber. The body portion, 22, 23, of each hood is curved back' upon itself and extends forwardly in the furnace-chamber and delivers into an opening 24, formed through the base of the bridge wall and adjacent to and communicating with the base of passageway 14:, as shown. Preferably the hoods 20, 21 are arranged in each side of the furnace chamber and the body portions 22, 23 thereof are of comparatively large capacity and of uniform size from the base of their funnel shaped mouths to the point of their connection with the bridge wall. WVe-have provided a steam pipe 25, andarrange the same with one end projected into the horizontally arranged forward portion or leg 22, 23, of each hood, and centrally thereof, as shown. Steam pipe 25 communicates through the brick work of the bridge wall,anda plate ico ' tions arranged in a horizontal line.

suitably arranged pipes 26,27 with the boiler j 6. Suitable valve devices, 28, are provided to regulate the jet of steam to be projected through pipes 25, 26, 27, into pipes 22, 23. The ends of pipe 25 projecting into the enlarged pipes 22, 23 are preferably drawn to a point as shown.

In the brick work of the boiler setting and above the doors opening into the fire space we arrange horizontally a short section of pipe 29, adapted to receive a supply of steam through suitably arranged pipes 30, 31, communicating with the boiler. Conveniently arranged valves 32, are provided to regulate the flow of steam thereto. Elbow projections 33, 34 are provided at each end of pipe section 29, and arranged to project into fire space 11, as shown, and to the inwardly projecting end of each is secured a nozzle, 35, 36, tilted downwardly, as shown. Each nozzle, 35, 36, is provided with a series of perfora- This line of perforations is arranged so as to deliver a spray of steam in the form of a sheet from the sides toward the center of the fire space, and to this end the perforations in the right hand nozzle are inclined toward the left, and those in the left hand nozzle are inclined toward the right, as indicated diagrammatically in Fig. 5. A short vertical pipe 37, is connected through a T or other suitable connection with pipe 29, midway the length thereof. Pipe 37 is arranged in the brick work of the boiler setting between the doors opening into the fire space, and to the lower end thereof is attached an elbow pipe 38, projecting into the fire space and to which is attached a nozzle 39, similar to nozzles 35, 36, and inclined or tilted downwardly in a similar manner. Nozzle 39 is provided with a series of openings arranged in line and inclined in opposite directions to deliver in the form of a sheet a spray of steam, as indicated in the Diagram 5. a

The operation .of the invention is as followsz-The smoke, unconsurned carbon and other gaseous and solid products of combustion arising from the bed of the burning fuel upon the grate bars are held in the fire by means of the blanket of steam from the nozzles 35, 36, 39. The nozzle 39 being arranged centrally of the fire chamber, and consequently nearest the hottest part of the fire is lower than the side nozzles 35, 36, and hence the blanket of steam injected therefrom into the fire chamber serves to hold the unconsumed particles to the action of the hottest part of the fire. Whatever particles of unconsumed matter escapes or arises from the sides of the bed of fuel are held by the blankets of steam from nozzles 35 and 36. By reason of thetilt or inclination given the nozzles, the sheets or sprays of steam are directed in such a manner as to assist in maintaining effectively the unconsu med products of combustion in the fire chamber and thus subject-ing them to the continued action of the heat. A draft of fresh air is delivered to the fire space above the steam blankets, and hence oxygen is supplied to the flames and heat arising from the fuel through passage way 14:. By reason of the diminishing capacity of this passageway and the special construction of the bridge wall at the mouth thereof, as above described the draft of fresh air and hence of oxygen is delivered at the proper rate of fiow and in the most effective direction. The beveling of the ends of the blocks 18 serves to assist in the proper delivery of the fresh air. Should any particles of matter escape without being entirely consumed they pass rearwardly through the furnace chamber arid into the flared or enlarged mouths of the funnels 20, 21 and thence into the pipes 22, 23 and returned to the opening 24 in the base of the bridge wall and thence they are drawn through passageway 14 and again delivered into the fire space mixed with fresh air and oxygen, and hence again subjected to the action of the fire, or, else, if the draft through passageway 14 is not sufficiently strong for the purpose they are delivered into the ash pit, and evenly distributed therein, and thence they are carried by the natural draft through the bed of burning fuel and into the fire space, in either case being again subjected to the action of the fire. The steam jet 25 assists in creating a draft through pipes 22, 23, causing a suction which draws the unconsu med particles into the funnel mouths 20,21. In order to provide against the escape of the solid particles of unburned carbon and other products of combustion through the angular spaces between the side walls of the boiler setting and the curved boiler, we arrange plates 4O, 41 in said triangular spaces, adjacent to the rear end of the boiler, as shown.

\Ve have found in practice that a furnace constructed in accordance with our invention, while exceedingly simple in structure and easily understood and operated, is thoroughly efficient in operation and effects in a most satisfactory manner a complete combustion of the solid particles of unburned carbon and other combustible constituents of smoke.

While we have shown and described aspecific form of mechanism for carrying out the. principles of our invention, it is to be distinctly understood that many changes and modifications would readily suggest themselves to those skilled in the art to which this invention relates. We do not desire, therefore, to be limited to the exact details shown and described; but,

Having now described the principles of our invention and a form of mechanism embodying the same and explained the mode of operation thereof, what weclaim as our own invention, and desire to secure by Letters Patent of the United States, is-

1. In a furnace, a bridge wall provided with a passage-way therein, delivering into the fire chamber at one end and the ash pit at the other end, means for spraying steam into the fire chamber, hoods arranged at the rear end ofthe furnace, and having enlarged mouths presented toward thefront of the furnace and connections between said hoods and said bridge wall arranged to open 'into the passageway therein at a point adjacent to the ash pit opening and plates arranged adjacent to said hoods, whereby the current of unburned particles is directed into said hoods and returned to the fire chamber; as and for the purpose set forth.

2. In a furnace a bridge wall having a passage way therein, a block having inclined sides, one of which forms one wall of said passage way at the endthereof, a series of blocks suitably spaced and resting at one end upon said first mentioned block, and a plate adapted to rest on said blocks, thereby forming a sewith the ash pit, a series of spaced blocks arranged to partially close the opposite end thereof, said blocks presenting beveled ends, and the space between contiguous blocks adapted to be filled with cementat a point adjacent to the mouth of said passage way,-

and means for creating a draft in said communications; as and for the purpose setforth.

6. In a furnace a steam pipe arranged in the setting above the fire doors, nozzles pr0- jecting from each end thereof into the fire space at each side thereof, a pipe connecting with said steam pipe midway the length thereof and projecting downwardly therefrom between the doors, a nozzle projecting from said downwardly extending pipe and into the fire space from the front thereof, and means for delivering steam to said steam pipe whereby jets of steam are delivered into the fire from the front thereof on different horizontal planes, the central jet being arranged nearest the bed of fuel; as and for the purpose set forth.

In witness whereof we have hereunto set our hands, this 29th day of August, 1894, in the presence of two subscribing witnesses.

HENRY SIEBEN. MATTHEW \VAGNER.

Witnesses S. E. DARBY. KATE V. DARBY.

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