US1037422A - Soot-cleaner for steam-boilers. - Google Patents

Description

W- J. BRADLEY;

SOOT CLEANER. FOR STEAM BOILERS.

APPLICATION FILED SEPT.28,1911.

3 7 42a 4 Pat'ented Sept. 3, 1912.

3 SHEETS-SHEET 1.

INVENTUFI WITNESSES: I

acldwc/ .wfl/Wb I AvWM t? a 1 M I ATTEIHNFY W. J. BRADLEY. SOOT CLEANER FOR STEAM BOILERS.

APPLICATION FILED SEPT. 28, 1911. v Q I Patented Sept. 3, 1912.

I SSHEETS-SHEET 2. R *W/A 'V/AL \Y/ /7R WH'NESEE (B 106 'A'TT'EIHNEY W. 'J. BRADLEY. a SOOT CLEANER FOR STEAM BOILERS. APPLICATION FILED SEPT. 28, 1911.

Patented Sept. 3, 1912.

3 SEEETS-SHEET 3.

- 'b\ r s,

A FUH EY WILLIAM J. BRADLEY, OF TROY, NEW YORK, ASSIGNOR TO MON'ARGH STEAM J COMPANY, OF TROY, NEW YORK, A CORPORATION.

UNITED sTAtnEs .PATEn FFIo BLOWER soo'r-cLnAnEnnon STEAM-BOILERS.

Specification 01' Letters Patent.

Application filed September 28, 1911. Serial m5. 651,752.

To all whom it may concern:

Be it known that I, WILLIAM J. BRADLEY, a citizen of the United States, residing at Trey, county of Rensselaer, and State of New York, have invented certain new and. useful Improvements in Soot-Cleaners for Steam-Boilers, of which the following is a specification.

The invention relates to such improvements and consists of'the novel construe tion andccmbination of parts hereinafter described and subsequently claimed. Reference may be had to the accompany; ing drawings, and the ,reference characters marked thereon, .which form a part- 0f this Similar characters refer to similar parts in the several figures therein.

Figure 1 of the drawings is a view in side elevation showing my invention ap plied to .a water-tube boiler,'t-he brickwork of the boiler-setting. being partly broken I away. Fig. 2 is a horizontal section of the v same taken onthe broken line 2-9-2 in Fig.

1, along 'onefside of the boiler-setting. Fig.

.3 is a vertical cross-section taken throngh the axis of one ofthe nozzle-carryingpipes showing at the upper end in det'ailthe selfsealing rotative connection between said pipe andthe steam-box from which-it receives a supply of steam, and showin' at the lower end in detail the bearing or the lower end of said pipe and the gear whereby said pipe is.'rotated. Fig.... 4 i -is a crosssection taken on the broken line 4 -4, in

Fig. 3, through the bearing-box for the lower end of a nozzle-carrying pipe,- showin a bottom-plan view of the lower end of the pipe and its operating-mechanism.

Fig. 5 is a cross-section taken on the broken line 5'5 in Fig. 3; Fig. 6 is a cross section taken on. the broken line 6,6- .in Fig. 3, showing a top planview of the steam-box and its supply-pipe. 7 is a. view in verticalsectlon of the bearing for the lower pipe, showingend of, the nozzle-carrying the lower-portion of said pipe and opersting-mechanism in side elevation. I

I My. invention relates to atype 'of sootcleaner for steam-boilers wherein-jets. of

lively mountedgp'ipe 'whereby: said nozzles can be"int1;and out of position for use. In boilerwcleaners of this type, considerable difliculty is experienced in operating the nozzle-carrying pipe and also in maintaining a steamor gas-tight rotative connection between the nozzle-carrying pipe and the steam-box from which the pipe is supplied, due to the excessive heat to which said pipe is exposed in the furnace structure.

-,The present invention relates more articularlyto the mounting of such pipes whereby their efficiency and operation are not affected by high degrees of heator'by excessive changes in temperature. The principal object of the invention is to provide for maximum expansion of such a pipe and the parts cooperating therewith,

while maintaining a tight joint between the pipe and the'steam-box whereby it is supplied, as Well as full operative relationship between said pipe and the mechanism whereby the same is rotated, v

The invention is'applicable to various typesgof steam-boilers and is particularly adapted 'for use in water-tube boilers as shown inthe accompanying drawings.

Referring to the drawings wherein the invention 1s shown in preferred form, 1,

represents the brickwork setting for a water-tube "boiler having tubes, 2, communicating at their opposite ends with water-legs, 3 and 4:, said water-legs con- 'nectingwith the cylinder, 5, in the usual manner.

The flue-space across which the watertubes' extend, is subdivided by vertical baf fle-plates, 6, into a plurality of sections, whereby heated gases, in passing from the furnaceto the stack, are caused to cross the line of water-tubes in difi'erent directions. Housed-in the brickwork setting along the "side ofthe boiler oppositeeach of the sections into which the draft-space is thus subdivided, is a .pipe, .7,- which extends in a vertical plane,'and is preferably inclined at approximately fright angles to the watertubes. The pipe, 7 is provided at intervals which preferably correspond with the intervals between neighboring rows of water-'- tubes,- with nozzles, 8, adapted in certain rotative positionsof the pipe, 7, to direct jets of steamkor air issuing'therefrom more or less directlyfacros's the draft-space, and between and against v the water-tubes. The

' comprises a pipe, 7 is rotatively supported at its upper and lower ends by suitable bearings. The bearing for the upper end of the pipe, 7, balland-socket ground joint, one member, 9, of which is fixed'upon the tube, and the other member of which is formed by an interior annular shoulder, 10, onthe steam'-box,-11, surrounding an opening through which the tube, 7, extends. 'A free space is left within the steam-box above the bearing-members to permit maximum expansion of the parts, the joint being rendered effective wholly by gravity and the internal pressure within the steam-box. The steam-box is provided in its top in line with its bottom aperture through which the pipe, 7, extends, with a larger aperture, 12, adapted to freely permit the passage therethrough of the pipe, 7, and its bearingmember, 9, which opening -is closed by a screw-plug, 13, which can be removed to permit the insertion or removal of the pipe.

The curved bearing-surfaces on the balland-socket members, 9 and 10, are ground to accurately fit one another, whereby, for the purposes of this invention, they are adapted to form a ti ht" joint under the internal pressurewithin the steam-box in difierent rotary positions of the pipe, 7, as well as in such difierent relative angular positions as the bearing-members may be caused to assume, due to deflection of the-pipe or unequal expansion of the parts when exposed to the high temperature to which such pipes are subjected in. use. Thebearing for the lower end of the pipe, 7, is formed in a bearing-box, 14;, which is adapted to rotatively support the pipe while freely permitting maximum expansion of thesame. The bearing-member on the lower end of the pipe, 7, is formed by the cylindrical hub, 15, of the gear, 16, whereby rotary move ments are lmparted to the pipe 7. The hub,

15, fits within an opening in the bearingbox, 14, through which opening it is adapted to reciprocate in accordance with variaopening in the bearing-box 14. The gear,-

tions in the length of the pipe, 7, due toexpansion and contraction. I The teeth of the gear, 16, are confined within and preferably correspond with the cylindrical dimensions of the hub, 15, whereby said gear is adapted to pass through and occupy the bearing- 16, is enggggmmgglent, 17, rotatively mounted at, 18, upon e underside of the top of the bearing-box, 14, and provided with an operatin -ha.ndle '19. The longi:

tudinal extent'oft e'teeth of the gear, 16, is such that 'when the pipe, 7, is fully contracted, the upper endsof the gear-teeth enter and are located within the bearingopening in the top ofthe bearing-box, 14, as shown in'Fig. 3-, cien't lost-motion to permit maximum expansion of the pipe, 7 without bringing the 'the-gear-mechanism operated by thus providing for sufii hub, 15, of the gear into contact with the gear-segment 17. The gear, 16, thus remains constantly in full operative engagement with the gear-segment, 17, under all of the varying conditions of temperature to which the device is subjected in use.

It will be understood that the pipe, 7, is

unconfined and unrestricted as to longitudinal movement, except by the ball-and-socket bearing, 9 and 10, whereby said pipe is suspended in position so that said pipe is free .to yield to the varying conditions of temperature without interfering with its capability for rotation, and without impairing the joint formed between the pipe and the steam-box.

The steam-box may be cdnnected with any convenientsource of supply, which may be steam or air under pressure. As shown, the several steam-boxes are connected with a common supply-pipe, 20, connecting with the steam-space of the boiler and controlled by a valve 21.

In cleaning the boiler, the steam pressure is admitted to the steam-boxes through the pipe, 20,. and the several nozzle-carrying pipes, 7 are rotatively moved by means of the handle, 19, causing the jets issuing from the nozzles, 8, to be projected into the draft-space and between and against the water-tubes to remove accumulations of soot, &c., as is well understood in the art.

. The steam-box, 11, and the bearing-box, 14, are connected together and supported by means of stay-rods, 22, which pass through suitable apertures in said bearing-box and 1n the flanges, 24, on said steam-box, said rods being secured to said flanges and said bearing-box by means ofnuts, 25, screwed upon the threaded ends of said rods. The stay-rods, 22, are embedded in the brickwork of the boiler-setting.

What I claim as new and by Letters Patent is- 1. In a device of the class described, and in combination, a box provided "with a bottom-opening; means for supplying to said box fluid under pressure; a pipe rotatively mounted in said opening, said pipe and box having cooperating ball-and-socket bearingmembers whereby said pipe is suspended from said box through the bottom opening therein; means for rotating said pipe; and nozzles carried by said pipe.

2. In a device of the class described, and in combination, a box provided with a bot tom-opening; means for supplying to said box fluid under pressure; a pipe rotatively mounted in said opening, staidpipe and box having cooperating ball-and-socket bearingmembers whereby said pipe is suspended -from said box through the bottom opening therein;.means for rotating said pipe; nozzles carried by said pipe; and a bearlng rodesire to secure is Y of said hub, and when said pipe isfully.

pipe, said bearing afiording tatively supporting the lower end of said a free space for maximum expansion of said pipe.

3. In a'device of the class described, andin combination, a pipe rotatively supported at one end; means for, supplying to said pipe fluid under pressure; a bearing-box pro- -vided with a cylindrical opening; a gearmember rotatively mounted adjacent to the outer end of. the opening in saidbearing-box and a gear and hub fixed upon theother end '7 of said pipe,isaid hub beingadapted to 00- cupy the cylindrical opening in .said bearcylindrical opening, I tudinally extended to properly engagesaid gear-member when said pipe is under maxi-- mg-box, and the teeth of said "car being confined within the cylindrical imensions contracted being located partly within said said teeth being longimum expansion.

having coiiperating it. Ina device of the class described, and combination, a'box provided with a bot means for supplying -'to said box fluid under pressure; a pipe rotatively mounted in said opening; said pipe and box ball-and-socket bearingmembers whereby said pipe is suspended from said box through the bottom-opening therein; means for rotating said pipe; nozzles carried by said. pipe; a bearing-box provided with a cylindrical opening; a gear member rotatively mounted adjacent to the outer end of the openingin said bearingbox; and a gear and hub fixed upon the lower end of said pipe; said hub being adapted to occupy the cylindrical opening in said bearing-box, and the teeth of said gear being v boiler-setting being 5. In a device of the class described, and,

combination, a'steam-boiler and boiler-setting; a rotatoryv pipe mounted'in the boilersetting; nozzles carried by said pipe, the provided opposite the respective nozzles with suitable apertures communicating with the draft-space of the boiler, a bearing-box for one end of said pipe; a steam-box forming a bearing for the other end of said pipe; and supporting members embedded in the boiler-setting and connected at. their opposite ends, respectively, with said bearing-box and said steambox. v i

6. In a device oi? the class described, and in combination, asteam-boiler and boilersetting; a steam-box; a pipe rotatively suspended from said steam-box by means of a suitable'bearing a bearing-box for the lower end of said pipe afl'ording a free space for maximum expansion of said plpe; supporting-members embedded in the boiler-setting and secured at their opposite ends, respectively,,to saidsteam-box and said bearingbox'; and nozzles carried by said pipe.

In testimony, Whereof, I have hereunto set my hand this 21st day of September, 1911.

- Witnesses:

, J; E. DONSBAOH, T. JosnPH SHEEHEY,

WILLIAM BRADLEY.

to properly engage said Copies of this patent may be obtained for five cent'seach; by addressing the (o1 nm1ss!onerof Patents,

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