USRE14117E - Boiler-cleaner - Google Patents

Description

Beissued M11218, 1916.

L .'J. BAYER.

BOILER CLEANER. APPLICATION FILED OCR-25, I911.

2 SHEETS-SHEET l.

- W///// W W J%-zf L .INVENZ'OR. I

Lqm/o/m Bayer- ATTORNEY.

WITNESSES:

L. L'BAYER.

BOILER CLEANER. v

APPLICATION FILED OCT. 25; IBM.

Beissued Apr; 18, 1916.

' 11v VENTOR. .L e0 rfolm Bayer A 1' roam Y WITIVESSES. ia wg z W UNITED STATES PATENT o'rar on.

LEO JNO. BAYER, OF ST. LOUIS, MISSOURI.

BOILER-CLEANER.

Specification ofReissued Letters Patent. lieissued Apr. 18, 1916. ori inal No. 978,830, dated December a0, 1910, Serial No. 553,411. Application for reissueflled October-'25.

1911. Serial No. 656,973.

To all whom it may concern:

Be it known, that I, LEO JOHN BAYER, a citizen of the United States, residing at St. Louis, State of Missouri, have'invented certain newand useful Improvements in Boiler-Cleaners, of which the following is a full, clear, and exact description, reference being had to the accompanying drawingi, forming a part hereof.

i y invention has relation to improvements in boiler cleaners; and it consistsin the novel details of construction more fully set forth in the specification and pointed out in the claims. 7

In the'drawings, Figure 1 is a side jelevation of one form-of boiler showing my invention applied thereto; Fig. 2 is a horizontal section on the zig-zag line -2-2 of Fig. 1 Fig. 3 is a vertical transverse section on the line 133-of Fig. 1; Fig. 4 is a detail plan of the plate (partly broken) closing the opening in the wall of the furnace through which the spray-nozzles play; Fig. 5 is a side elevation of a modified boiler showing a modified form of my invention applied thereto; Fig. 6 is a vertical transverse section on the line 6-6 of Fig. 5; Fig. 7 is an enlarged elevational detail of the header with spray nozzles attached directly thereto; Fig. 8 is a horizontal section of the spray-head on the line 88 of Fig. 9; Fig.

9 is a vertical sectionon the line 99 of Fig. 8; Fig. 10 is a section corresponding to Fig. 9 of the terminal spray-head of the series; and 11 is an end view of Fig. 10. The object of my invention is to direct sprays, jets, or sheets of steam (or equivation of the draft, so that the draft may be materially assisted during, the cleaning. operation; afurther object is'toprovide means for cleaning any section of the boiler independently of the remaining sections, and in fine to provide further and other detailsthe advantages of which will be clearly apparent from a detailed description (if the .invention, which is as'follows:

Beferrin to the drawings, and for the present to igs. 1 to 4, inclusive, F represents the furnace, (the walls being broken away in parts) of a Well known type of wator-tube boiler (Babeock & lVilcox), S representing the shell'of the boiler, and T the water tubes. As Well understood in theart the water-tube portion is divided ofi into independent sections by bafiie-plates a, the

' general draft being rearward and upward from the fire-box F. Disposed along one of" the side walls of the furnace opposite each section-,or. division between and on' spray-nozzles are irfserted to project jets of steam into, through and across the spaces between the water-tubes for removing any dirt, ashes or other foreign material which accumulatw thereon from time to time. In the present case, I provide a steam supply or conducting pi e 1. leading from the steamspace of the she I, bringing the pipe down alongside the bottom of the furnace wall as shown. Along this portion of the steam pipe are disposed Ts2 to which (and to the pipe) are connected branches 3, provided with valves 4 of any conventional type. and terminating in hollow swivel joints 5 of any well known construction to be found on the. market, from which joints lead headers 6 as shown. The headers aswell as the branches 3) are disposed at right angles to the inclined water-tubes, each header beingl provided with a handle or lever L by which axial rotation may be imparted to such header. Leading from each header are shunts croft-sets 7 disposed parallel to the \vall ofthe furnace (for a central position of the parts as presently will more fully appear), the shunts progressively diminishingin length from bottom upward, whereby their outer ends are disposed in a com? mon vertical line corresponding substantially to the central vertical axis of each opening 0. From the shunts 7 lead nozzles 8 terminating in flaring spray-heads 9, the

latter being provided with passages m di verging from the passageway ofthe nozzle and '(llSPOSBCl 1n the vgeneral plane of oscillation of the nozzle, 21 second downwardly tion of the the bottom head 9, opposite the middle seci tion, and an upwardly trending passage wav m in the top headfi) ot the terminal,

section'of the boiler, to direct asteam jet in thegeneral. direction of the line of draft, the passages m projecting the steam across-'- t-he space between the water-tubes. 'The upperends of the headers are supported and have" suitable hearings" in straps 10 spanning the openingsO and secured to the furnace wall. By means of the ofi'sets 7, the bases of the nozzles are brought in the plane I ofthe vertical axis of the opening 0, and

hence, when-rotation is imparted to any header, the'free ends of the nozzles can sweep ac1'*os s the full width'of the reduced end of such opening. Otherwise, since the header 6 inclined to such vertical axis of the opening 0, the nozzles would strike the sides of the opening, and no rotation could be imparted to the header were it not for 1 the gradually diminishing offsets 7 re,- ferred to." I I By turning on the steam, seizing the handle L and imparting the necessary rotation to the header, the several nozzles can be oscillated across theopening O, the steam be ing projected in jets (which form-la fan- -like shee'tl into, through and across the sp'ac'e'sbetween the water-tubes, the particular jet issuing from the port -m assisting in the draft, since it projects the steam in the general direction of suchdraft.

Water-tube portion of the'boiler may thus be cleaned independently. Provision maj xhowever, be made to clean all the sections simultaneously by simply connecting the several handles L by a common link coupled to all the handles) as 11: (loosely shown in the modification in Fig. 5.

this modification the water-tube portion T of the boiler is set at a less incline from that of the first form described, and for practical purposes the headers 6- may be mounted I vertically, and the nozzles-"8 be coupled di- 5 rectly thereto without the use of shunts as the inclination of the tubes is insufficient to either interfere' with the freeoscillation of the nozzles, or prevent'thesteam jets from shooting across the spaces between the tubes. Of course, the object "sought-1s to pro ect the sheets or jets of steam as near parallel to the planes of the spaces between the tubes the tube (instead as possible; to insure that the-steam reaches every portion of the exposed portion of of cutting across'the tube) but in the modification alluded to (Fig. 5.), this result is practically attained though perhaps notas perfectly as in the firsttype dcsgibed, where the planes of'o'seillatron of Each se'cthe nozzles are parallel to'the planes of disposition of the water-tubes. To prevent the formation of a vacuum in the headers, and

allow free influx of air thereinto at the proper time, the top of each header-is provided with a vent-valve a of any conventional type. the valve seating, during the blowing operation, and unseating at the con-. clusion thereof to allowfor free influx of air into the pipes to fill any vacuum tending to forth therein. as a result of condensation of the steain.-

The Fcentral position of..the parts'corresponds tothat wlieret-he nozzles are on the-center .vertical line of an opening 0 and from which line they are free to oscillate in either direction to cause the steam jets to sweep the entire area of a given section as defined by the baflie plates a.

Owing to the presence of the bathe-plates a, the general direction of thelline of draft from the fire-box as indicated by the arrows in Fig. 1, will:be first up infront of the first plate, then down between. the plates,

and finally up again beyond the last plate. So that the bottom spray head opposite the center section between the baffles (Fig. 3)

' must be mountedso as to direct the passages m downward instead of upward, that is to say, they must be the reverse. to the top spray-head opposite the terminalsection I (Fig. 6).

It will be seen from the foregoing that whatever he the inclination of the water tubes, the nozzles8 of the cleaner or so'otblower are arranged one above the other in vertical series,. and asthey are moved or swung with' the rotation of the header 6 they follow the direction of'the tubes, oscillating as they do in planes parallel to said tubes, said'planesof' oscillation being oblique to the vertical series arrangement of the nozzles. The nozzles 8' on the other hand while likewise arranged one above the other in vertical series, neednot oscillate in planes oblique to said vertical series arrangement thereof forreasons pointed out in the specification. I

It may be stated by wa of explanation that boiler-furnace walls of'the type herein I shown are usually provided with vertical I, openings I O vfor the accommodation of hand I cleaners, With'my invention these-openings maybeavailed of, the V ertical series dispo sition of the nozzles 8 when occupying a position opposite the central axis of an opening, permitting the nozzles to be swung across the full width of the throat (or narrow portion) ofjthe opening. If the nozzles were arranged parallel to the inclined header 6 (which is at right angles to the tubes T) the nozzles at thebottom, with a rotation of the. header in one direction, would foulone side of the throat beforethe 'topnozzle's'h'ad described their full sweep;

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and whenthe header was swung in the op- .,posite direction, the top nozzles would foul the opposite side of the throat before the 'was parallel to the header 6, but an inclined opening would be an objectionable feature in furnace wall constructions. 1th my present arrangement the bases of the nozzles 8 are disposed along an element of a cone. the axis of which corresponds to the axis of the header 6, this element being brought into a central vertical position when opposite the major axis of the opening 0, but being deflected (or caused to'be'inclined) from its verticality the moment it swings to one side or the other of this central position. This deflection is however, so slight between the limits of the are of oscillation of the nozzles, as to be practically negligible during the operation of the blower.

.Having described my invention, what 1 claim is in superposed parallel planes, a series of transversely disposed bafiie-plates inter- ,secting the tubes and. dividing the boiler into independent sections, the side wall of the furnace being provided with openings opposite the sections, headers positioned opposite said walls, nozzles communicating with the headers and operating across the openings for projecting a cleaning fluid into and through the. spaces between the tubes, and means for moving the discharge ends of the nozzles in planes parallel to the general planes of disposition of the tubesv 2. In combination with a furnace, a boiler having a series of water-tubes disposed in superposed parallel planes, the side wall of the furnace being provided with openings opposite the tubes, headers positioned opposite said walls, nozzles communicating with the headers and operating across the openings for projecting a cleaning fluid into, through, and across the spaces between the tubes, and means for ,moving the discharge endsof the nozzles in planes parallel to the planes of disposition of the tubes.- 1

3. In combination with a boiler having series of water-tubes disposed in superposed inclined planes a furnace inclosing said tubes, the wall of the furnace being provided with vertical side openings, :1 fluid-supply pipe disposed on. the outside of the furnace wall, an axially rotatable header opposite'an opening in the wall disposed substantiallyat right angles to the planes of disposition of the water-tubes, a series of offsets l ading from the header, and nozzles eX- tending from said offsets into the boiler furnace nd rojecting the fluid into and through the spaces between the tubes durmg the rotation of the headers, the several offsets being apportioned in length to bring the bases of the nozzles in line with the center of the opening in the furnace wall, said center corresponding to the center of the arc of oscillation of the nozzles. I

l. In combination with a water-tube boiler, a fluid-ejecting and cleaning nozzle positioned on the side of the tubes and provided with passages projecting the clean .in'g fluid between the tubes and across the space between the tubes and an independent plates inte secting the tubes and dividing the boiler into independent sections, a steam-supply pipe, a rotatable header'opposite each section carriedby said pipe, a series "of nozzles leading from each header toward the boiler and projecting the steam' into and across the spaces between the tubes, a lever arm projecting in the opposite direction from each header, and a link pivotally coupled to the several lever arms whereby the several headers may be rotated in unison and the several sections of the boiler cleaned simultaneously.

6. In combination with a boiler having a series of inclined Water-tubes disposed in superposed parallel planes, a seriesof transstantizilly at right angles to the water-tubes,

a series;-of offsets or shunts of progressively diminishing length leading from each header, and nozzles extending from said offsets toward the water-tubes for projectt'ing jets of steam into, and through the spaces between the tubes during the rotation of the headers, the bases of the nozzles being disposed along a substantially vertical line.

'7. In a soot-blower for water-tube boilers having inclined tubes, a set of nozzles arranged one above the other in vertical series, and means for causing said nozzles to follow th direction of the tubes, whereby the nozzl s move in planes oblique to the said vertical series arrangement thereof.

'8. In combination with a furnace, a boiler having a series of water-tubes disposed in superposed parallelv planes. the side walls of the furnace being provided with openings opposite the tubes, headers positioned between the vertical planes passing through across the openings for projecting a h cleaning fluid into, through, and across the spaces between the tubes, vand means for moving the discharge ends of the nozzlesin planes parallel to the planes of disposition of the tubes.

9. In a soot-blovverfor ivater tube boilers having inclined tubes, a set of nozzles 0pposite the sides of the tubes arranged one above the other 1n vertlcal series, and means coupled to the nozzles for causing sald nozzles to follow the direction of the tubes, \vhereb the nozzles swing in planes oblique to the said verticalserles arr: ngement thereof.

10. In a soot-blower for Water-tube boilers, having inclined tubes, a set of oscillatingnozzles arranged one above the other invertical. series, and means for causing-said nozzles to move in the general direction of the tubes, whereby the nozzles oscillate in planes oblique to the vertical series arrangement thereof.

11. In a soot-blower for Water-tube boilers having inclined tubes, 'a set of oscillating nozzles arranged one above the other along a common vertical line, and means for. moving said-nozzles 1n the general directlon of ;the tubes whereby they oscillate planes oblique to the said vertical line.

12. In comoination-jvith a w'vater-tube boiler having inclined tubes, a furnace 1nclosing said boiler, the wall of the furnace being provided with a side opening opposite the tubes, a rotatable fluid-supply pipe disposed opposite the tubes and substantially at right angles to the'tubes, and nozzles communicating with the pipe and arranged one above the other in vertical series. and means for swinging the nozzles across the opening aforesaid in planes substantially parallel to the tubes and at an incline to the vertical series'arrangement of the nozzles. 1

13. In combination with a Water tube boiler having inclined tubes, a furnace inclosing said boiler. the wall of the furnace being provided with a side opening opposite the tubes, a rotatable header disposed on the outside of the furnace Wall opposite the tubes and substantially at right angles to the tubes, and nozzles communicating with the header and arranged one above the other invertical series and playing across the opening aforesaid. and meanswhereby upon rotation of the header. thenozzles will sweep in planes parallel to the boiler tubes and at an obliqueangle to the vertical series arrangement of the nozzles, and pro ect the cleaning fluid into the spaces around the tubes;

14. In a soot-blower for Water-tube boih ers having inclined tubes, a rotatable header mountedfopposite the tubesat right angles thereto, and nozzles disposed one-above the other in vertical series and communicating with the header, and means whereby .upon rotation of the header, the nozzles will svveep in planes parallel'to the tubes and oblique to the said vertical series arrangement of the nozzles. I

15. ;In a soot-blower for Water -tube boil ers having incline-d tubes, a setjof oscillating nozzles opposite the tubes arranged-one above the otherin vertical series,'and.means for causing said nozzles to move in planes I parallel to the general directionof the tubes.

16. In a soot-blower for Water-tube boilers havinginclined tubes,,a set of oscillating nozzles opposite the tubes arranged along a common vertical line, and means for causing said nozzles to oscillate in planes parallel to the general direction of the tubes and oblique to said vertical line.

17. In a soot-blower for \vatertube boilers-having inclined tubes, a set of nozzles opposite the tubes arranged one above the other in vertical serles, and meansfor 1mpartih'g movement to. the nozzles in planes substantially parallel to the general direction of-the tubes.

18. In a soot-blower for ivater-tube' boilers having inclined tubes, '21 set of'nozzles arranged one, above the other 1n vertical series. and means for causing said nozzles .to follow the direction of tubes and operating to incline said series alternately in opposite directions relative to said vertical arrangementthereof, the nozzles moving in planes oblique to said vertical series arrangement.

- 19. .In a soot-blower for water-tube boilers having inchned tubes, a set of oscillating nozzles opposite the tubes arranged one above the other 1n vertical series, and means for'causing said nozzles to move in planes parallel to the general direction of the. tubes and operatmg to incline said series in opposite directions relative to said "ertical arrangement thereof, the nozzles moving in planes obhqu-e'to' said vertical'series arrangement,

20. In a soot-blower for \vater-tube'l'ioll ers having inclined tubes, a set of nozzles arranged one above .the other in vertical series. and means for causing said nozzles to follow'the direction of the tubes and 01)- eratingto incline said series relative to said vertical arrangement thereof. the nozzles moving in planes oblique to said'vertical scries arrangement.

J 21. In' a soot-blo\ver 'for Water-tube boilers having inclined tubesuya set of oscillating nozzles opposite the tubes arranged along a common vertical line, and means for causing said nozzles to osc llate 111 planes parallel to the general direction of the-tubes, and I oblique to said verticalline, and operating .to incline said series relative to said vertical line during the oscillation of the nozzles.

22. In a soot-blower for .water-tubeboilers having ilnclined tubes, a set of nozzles opposite the tubes arranged one above the other in vertical series, and means for impartlng movement to the nozzles 1n planes substantially parallel to the general direction of the tubes and operating to incline said'series relative to the vertical arrangement thereof during the movement of the nozzles.

23. In a soot-blower for water-tube boilers havin inclined tubes,'a set of nozzles opposite the tubes arranged one above the other in vertical series, and means for imparting movement to the nozzles in planes LEO JNO. BAYER.

Witnesses:

EMIL STAREK, J 0s. A. MICHEL.

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