USRE16714E - Boot blower - Google Patents

Description

' J-. H. REEDY ET AL 500T BLOWER Original Filed NV. 15. 1923 11v VENTOR Y n TTORNE y Reissued 23, 1927. E UNITED: STATES "PATENT iOFFl CEe-i I 301m my mp1 or mini-remain) wrnnrm' osnnnn1cnn'r,-. or e l mu m. nn-mum my a, me, Serial mi. e-ms, minimum is; stea at. a

. Mame flee Iov mber 8,

I ,7 Out invention relates to sootv, blowers,;a firm applied to steam pipes which are emon tubes of a water tube boiler.

5 The disadvantage of the soot blowers with which we are familiar is that they are to the high heat within the furnace,

hence have; rapiddeterioratien, and

' hence was great in connectienwith the operation of boiler plant! a .It is our objectto provide a sioot hlower .Y which is extemsible, and can be. stored outside of HIQ'COXR USti R chambersof a 'furuse, and when in use can be extended, and rocked, turned orrevolved, to bl w ofl' the *accmnuleted seat and ash on the vboilen a the Outer end thereof, and these pins ride tubes. More vide a te escopin device which'is extended by the-force of steam which isalso used suepgort the blower, that no metallic e n maintained as permanent equipment on the inside of the furnace.

We accomphshtour objects by that hereinafter more:

a chimed-1* u Infliedramng: ,t i Figure 1 is a section of 'the delgure blow hole ofthe device. t

v I 3 is. a like-vie of another form of b ow hole of the device.

Figure *iisa partially diagrammatic view ,9 of supporting thesoot' I i I Stru ure in llnje with a groove 24 in the vvice lt'l' 7, from which extends the pipe 8.

- There is provided at'the head of the'pipe 8,

a fitting, 9,.whinh. is 0011 led to a revoluble Pa i011It 0- T cally it is our objectto pro-;

as an agentfior blowing ofi the Alsoit is our Oblflfit to ustom and mount and Qis a plan view of one form 'ofe for soot blower,

tothe furnace. Steam enters the details ot this; joint 1926,. seri l no. 141346. Y

important except to the entent tha v t 88 s am ackm a, revoluble. outlet ipe ed to blowofi the soot thataocumulates .p

1s a'directpassageway through the cou ling.

On: the pipe portion 11 is mounted est a el irocketwheel 12, on which is a chain 13. I y, means of the chain, the pipe 11 and the remainder of the soot. blower is rock d box.v The section 14 has a pair of pins 15 projecting inwardly .toward its center, at

in grooves-l6 in the outside of the next pi or tube-sect1on17." vThis pipe section has its grooves terminating; in shoulders, short of its end, and in the end thereof thatlies permanently-within 'thefirst section, are one or mo e pack ng rmgs, or pist n rings 18 The third pipe or-tube section 18, has y l ke grooves 19 to engage pins 20 on, the seccertain construction and arrang m f part 0 specifically p inted out nv ahgnment by means of pins, grooves and and section, and l ke piston rings 21. Th fourth-tube 22 is supported slldably in a steam .t1ght manner, and held in positive packingrings as in the case of the pipe sec- .tlon 18. Thus the several tubes interengage so that the telescoping device can be rotated Alsothe ends of each pipe section which protrude are beveled ofl, as illustrated at 23. Bymounting the pipe or soot blower bridge wall, or any kind of groove formed in a wall of the furnace, or any of its supports, bridges or baflles, it will be guided and supported when being extended. The bevele ofi advancing edges will not catch against any accumulation of dirt, protruding brick edge or the like. Also the blower can he removed or inserted in the boiler without-interfering with its action.

Each of the sections of the telescoping structure will have a series of holes arranged along it, preferably ina straight line serving as means for permitting a discharge of steam therefrom. Thus we have shown the ol'ivioxror tu ular e ement 11, and that t ere,

round form of holes 30, in any one of the sections typified at 31, or the holes may be elongated as illustrated at 32, in a typical section 31.

1" Secured to the outer end' of the fourth section is a cable or. chain 33, which extends-;

back through the telescoping structure, over a sheave 34, down through the supporting pipe structure, around a sheave 35, and to a Ordinarily While we have shownthe first section as located well within the furnace wall, it will i be understood that the device could be so should ,lie within the mouthdof the metal thimble 38.

mounted that the outer end of thispipe This thimble is secured in the hole 39through which the soot blower, passes into the furnace, and preferably does not extend through into theinside of the wall. "If desired, the entire soot blower could be withdrawn from the furnace and the hole, for its introduction closed by any desired means, as by the cover 40. Also the entire device could be mounted on .a movable stand, instead of being secured to the furnace, as willbe apparent without illustration.

While the form of extensible blower.

shown, is the one we prefer, we do not wish" to limit ourselves to this one form of pro viding for extensibility.

.In operation the device is controlled as follows: Theoperator may make a prelim inary rotary adjustment if he desires, and

then turns on the steam. The steam presses against the end of the smallest tube, and extends it like a piston, and inlike manner extends each of the tubes of the telescoping device. As any section is extended, the steam starts to escape through the spray holes in the section, thereby tending to retard the action of the steam to the end that too 5111- .rupt anextension of the device does not take place.

When the device is fully extended within the furnace, the operator, leavingthe' steam turned on, rocks the structure to and fro, thereby spraying the soot away from the boiler tubes by means of the steam.

-When the cleaning is complete, the steam is turned off, and the operator rewinds the reel device, thereby drawing in the several 'tube s ections. As stated the degree of withdrawal of the sections from the furnace can t be regulated as desired and also some other cleansing fluid besides steam could be employed.

Having thus described the invention, what we claim as new and desire to secure by Letters.Patent, is:- a b 1. A boiler cleaner comprising a cleaning fluid supply pipe, a tubular element rotatably connected to said pipe and communicating therewith, means for rotating said element, a plurality of straight telescopic tubes; normally: nested within :Sfiljd'; element, interengaging means between adjacent tubes and between the outermost tube and said element" to compel said tubes to share the rotary movement of said element, means enabling 4 the pressure of the cl eaning' fluid to extend "said"telescopictubes, means for retracting said tubes, said last means including a flexible element" secured to the innermost tube andextending to a point {of control adjacent said supply pipe, and 'Ineans permitting the I discharge of cleaning from the telescoping tubes.

' 2. A boiler.cleaner'c'omprisingi a steam supplypipe,atubularelement rotatably onnectedhto said". pipe" communicating therewith, means for rotating said element, a plurality of'straiight telescopic tubes normally nested within said; .,element; interpengaging means bet-weenadjacent tubes and between ,the' outermost tube and said element to compel. said tubesf to 5 sha re' the rotary. movement of said' element, 'means enabli'ng' the pr'essure'of the steam "to extend sa-id'telescopic tubes, means for retracting saidtubes, said lastmeans including a flexible element secured to the innermost tube and extending,

to; a point of control adjacent said" supply pipe, and means'permitting 'thegdi'schargeof steam from the several telescoping tubes.

3. In aisoet blower, a tubularmemberlocated in the wall of a boiler, )a series'of telescoping" tu'besTkeyed to "said' tubular member, means for keying each'tube teamstraight telescoping tubes located within said [tubular member withtheoutermos't'of the other so as to maintain a slidable', but non rotatable relation .between them, means for extending the tubes and means for retract-- ingthe tubes each with relation to another so as to'control' the position of said tubes with relationto thetubular member, means for rocking the tubular member, mean s for injecting steam l'thereimand steam outlets located in spaced relation substantially throughoutthe series of't ubes, so as to'emit jets of steam sub stantiallyfthroughoutv th e length of the telescopicstructure,'when the tubes are extended. 7 b

4. In a soot blower, a1 tubular-member located in the wall of a boiler, a series of straight telescoping tubes located within. said tubular member with the outermost of the telescoping tubes keyed to said tubular member, means for keyingeach tube to an other so as to maintaina slidable, but nonf rotatable "relation between them, .means for extending the tubes and means for retract ing the tubes, each with relation to another so as to, control theposition of said tubes with relation tothe tubular member, means for rocking the tubular member, means for injecting steam thereinfand steam outlets located in spaced relation substantially throughout the series of tubes, so as to emlt jets of steam substantially throughout the length of the telescopic structure, when the tubes are extended, said steamoutlets being in substantial alignment with respect to a plane crossing the axes of said tubes, whereby a steam spray may be directed in a plane extending radially from the axes of said tubes.

JOHN HENRY REEDY.

WILLIAM JOSEPH LICKERT.

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