US784552A - Boiler-flue cleaner. - Google Patents

Description

No. 784,552. PATENTED MAR. 14, 1905.

' 0. DONATZ.

I BOILER FLUE CLEANER.

APPLICATION FILED D110. 30, 1904.

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4 1. .3 flttorney No. 784,552. 5 PATENTED MAR. 14, 1905. 0. DONATZ.

BOILER PLUE CLEANER.

APPLICATION FILED DEG. 30, 1904.

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Q 9/ I I 254 W ]J 3 7180 I l 9 2 9 I Patented March 14, 1965.

PATENT OFFICE.

OTTO DONATZ, OF TRENTON, NEIV JERSEY.

BOlLER-FLUE CLEANER.

SPECIFICATION formingpart of Letters Patent No. 784,552, dated March 14, 1905.

Application filed December 30, 1904. Serial No. 239,046.

To all whmn it may concern:

Be it known that I, O'r'ro DONATZ, acitizen of the United States, residing at Trenton, in the county of Mercer and State of New Jersey, have invented certain new and useful Improvements in Boiler-Flue Cleaners, of which the following is a specification.

My invention relates to apparatus adapted to clean the fines of boilers by passing therethrough a jet or current of steam or other "apor or air.

Heretofore it has been common to locate fluecleaningapparatus at the rear end of the boiler with which it is used; but such location is objectionable, because portions of the apparatus are exposed to a fierce heat and deteriorate rapidly in consequence thereof, and the apparatus soon becomes clogged and ineflicient, and it is difiicult to get at it to repair or clean it. hen such apparatus is placed at the front end of the boiler, its use interferes seriously with the draft of the furnace, as the steam or other cleaning agent is forced through the fines directly against the current of products of combustion passing therethrough in the opposite direction, and a very objectionable back draft is produced.

The principal object of my invention is to provide simple and efficient apparatus for cleaning the boiler-fines in series, thus obviating the interference with the draft of the furnace caused by a simultaneous cleaning of all the fines of the boiler; and a further object of my invention is to provide a novel arrangement of apertures or nozzles through which the cleansing agent may be discharged into the fines in such manner as to efficiently clear the forward openings and ends of the flues of all accumulations of soot, ashes, &c.

In the accompanying drawings, forming a part of this specification, Figure 1 represents a front View of a boiler-setting and boiler with my improved apparatus applied thereto, said apparatus being shown partly in section. Fig. 2 is a front view, partly in section, of the valve which operates the apparatus and its connections. Fig. 3 is a perspective view of said valve and its immediate connections,

- screwed tightly into said openings.

drawn on an enlarged scale. Fig. 1 is a perspective view of the front portion of a boiler, a portion of the shell being broken away, illustrating the manner in which my improved apparatus is connected therewith. Fig. 5 is a detail View illustrating the position of the flue-cleaners relative to the flues. Fig. 6 is a detail view showing the discharge-apertures.

in one of the flue-cleaner pipes, and Fig. 7 is a detail view showing -a modification involving nozzles for the directing of the cleansing agent into the fines.

In the drawings, 1 is the boiler. 2 is the manhole. 3 indicates the fines. 4 is a pipe connected, preferably, with the steam-dome of the boiler, which pipe opens into the pipe 5 and has in it the valve 6. The pipe 5 is provided with the valve 7 and opens into the valve-box 8 and below its union with the pipe 4 is used as an exhaust or drain pipe to clear the pipe 4 and the valve-box 8 of condensed steam. The pipes 9, 10, and 11 enter the rear wall 12 of the valve-box 8 through openings tapped therein, into which said pipes are respectively screwed and are connected by unions with the pipe 13. This pipe 13 is provided with plugs or heads 14, 15, 16, and 17, securely and closely placed and fixed therein, which heads serve to divide said pipe into three independent chambers, as indicated in Fig. 1. In the under side of said pipe 13 are a number of openings, which are tapped to receive the upper ends of the pipes 18, 18, and 18", which pipes are threaded at their upper ends and The several pipes 18, 18, and 18" are closed at their lower ends by the caps 19 and depend from the pipe 13 directly in front of the forward openings of the boiler-fines 3. In each of said pipes 18, 18, and 18 are formed clusters of small apertures 20, which are so arranged that the central aperture of each cluster is located on the axis of the opposite fine 3, as indicated in Fig. 6. The pipes 9 1O 11 are preferably arranged to open into the back wall 12 of the valve-box 8 at points equidistant from the center of said back wall. (See Fig. 2.) \Vithin the valve-box 8 is contained the cirthe drip-pipe 5.

cular valve 21, which is operated by the shank 22, turned by the handle 23. Through said valve 21 is a circular opening 24:. (Shown in Fig. 2 and indicated in dotted lines in Fig. 1.) This circular opening 24: is arranged so as to register with the openings in the back Wall 12 of the valve-box 8, leading to the pipes 9, 10, and 11 and the position of this opening 24 is indicated upon the disk 25, as at 26, so that by turning the pointer 27 on the handle 23 to said mark 26 it will be known that the said aperture 24 is registering with the opening in the rear wall of the valve-box which leads into pipe 10. The registering of said opening 24 with the openings leading to pipes 9 and 11 is similarly indicated.

The operation of the apparatus is as follows: The valve 7 being open to permit the escape of water from the condensed steam, the valve 6 is opened, and the steam passing through the pipe 4 from the steam-dome of the boiler drives the condensed steam through The valve 7 is then closed, and live steam enters the valve-box 8, whereupon the handle 23 is turned, so that the opening 24 in the valve 21 registers with the opening in the back wall of the valve-box leading to pipe 9, and the steam passes through said pipe 9 into the chamber of pipe 13, connected with depending pipes 18", into said pipes 18 and out through the clusters of openings 20 in each of said pipes, and into the fines 3, passing therethrough, and cleaning them of soot and ashes. The handle 23 is then given another one-quarter turn until the aperture 24 registers with the opening which leads to pipe 10, whereupon the steam is cut off from pipe 9 and passes through pipe into the central chamber of pipe 13, from which the pipes 18 depend, and through said pipes 18, and the steam passing out of the apertures of said pipes cleans the fines 3 opposite thereto. The handle 23 is next given another one-quarter turn, and the steam is cut off from both pipes 9 and 10, and runs into and through pipe 11 into the third chamber of pipe 13. Thence it passes into the depending pipes 18, issuing from the clustered apertures formed therein and cleaning the several series of fines 3 opposite said apertures. being concluded, the handle 23 is given a turn down to the position shown in Fig. 3, when the steam is cut ofi" from all the pipes 9, 10, and 11. The valve 6 is then closed and the valve 7 opened to permit the escape of condensed steam from the valve-box 8 through the drip-pipe 5. A The clustered apertures in the depending pipes 18, 18", and 18 are formed by drilling through the pipe on diametrical lines. The central aperture is larger than the others and serves to project the steam into the middle of the fine. The steam projected from The cleaning process this central opening does not strike the surface of the flue at the entrance or forward end thereof, and the other apertures in the cluster are used to project the steam against the edge of the flue, so that the opening may be thoroughly cleaned of all ashes, &c. In cleaning fiues of a size exceeding four inches in diameter I find it useful to provide the depending pipes 18, 18, and 18 with nozzles similar to that shown in Fig. 7. This nozzle 25 is shown in said Fig. 7 as fixed upon one of the pipes 18 opposite the fines 3. It has a central pro ecting nozzle 26 for directing a jet of steam through the fine 3 and several outlying nozzles 27 for projecting the steam against the inner side of the flue at its opening.

When it is desired to remove the depending pipes 18, 18, and 18 from their normal position in front of the fines 3, the unions connecting the pipes 9, 10, and 11 with the pipe 13, are loosened, and the pipes 18, 18*, and 18 are turned outwardly and upwardly from the end plate of the boiler, the pipe 13 turning in its bearing formed in the boiler-shell, one of which bearings is shown at 28 in Fig. 1.

As will be readily understood, my improved apparatus may be connected with 'an entire battery of boilers and operated with one or more valves similar to that shown and described. By multiplying the connectingpipes and increasing the number of openings in the valve-box the entire apparatus may be regulated by one valve.

By the use of my improved apparatus the objectionable back draft may be avoided while cleaning the boiler-fines, and the combustion is rather aided, than retarded by the use of such apparatus.

' Having thus described my invention, what I claim is- 1. In a flue-cleaning apparatus, a valve having two or more discharge-ports; an inletduct opening into the chamber of said valve; two or more discharge-ducts opening respectively from the discharge-ports of said valve and respectively connected with separate chambers; two or more separate chambers, and ducts opening from said chambers and having orifices through which the vapor, air or fluid may be ejected and pass into the fines to be cleaned.

2. In a flue-cleaning apparatus, the combination of a boiler; a duct connecting said boiler with a valve having two or more discharge-ports; said valve; two or more dis charge-ducts opening respectively from the discharge-ports of said valve and respectively connected with separate distributing-chambers; said chambers, and d ucts opening from said chambers and having orifices through which steam may be discharged into the lines to be cleaned.

3. In a flue-cleaning apparatus, a distributi I D 784,552 A 8 ing duct having clusters of orifices located fines to be cleaned; substantially as shown and therein at points Opposite the ends of the fines described.

to be cleaned; substantially as shown and de- OTTO DON AT7 scribed. J.

5 4. In a flue-cleaning apparatus, a distribut- Witnesses:

ing-duct having multiple nozzles located on MARGE T. SIMPSON,

said duct on points Opposite the ends of the ELWOOD W. MOORE, Jr.

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