US1653220A

US1653220A - of marion

Info

Publication number: US1653220A
Authority: US
Publication date: 1927-12-20
Anticipated expiration: 1944-12-20

Description

steam blower,

Patented Dec. 20, 1927.

UNITED S ATES ALBERT n. noucxs, or Men-Ion, momma, aserenon r0 or MARION,

& surrLY 00.,

neuron mncnirm, nounmw INDIANA, A conronxrron.

,soor BLOWER.

Application filed August 14,1924. Serie11i'o. 7 8 2,020.

This invention relates to certain improve ments in soot blowers of the type havinga blow tube mounted in the head plate of the with ablow tube extension removably connected with the blow tube so that theblow tube and extension are rotatable as a unit with a series of ports in said extension inclosed by: a stationaryv steam head which applies steam thereto, and the means shown and described-for mounting;

and operating said extension. 7 y

The full nature of the invention will be (understood from the accompanying drawings and, the following description and claims. j I l In the drawings Fig. 1 'is a vertical central section through the soot blower, intermediate portions being broken out and omitted and other parts being shown; in elevation, the valve mechanism bein shown in the closed position. 1 v 4 Fig. 2 is a similar view of. the pressure supply line and valve mechanism associate" therewith. showing the same in the open or pressure supplying positions Fig. 13 is anelevation of side of the lower portionofFig. 2. i

Inthe drawingsithere is shown a wall box 10 adapted to be mounted in a steam boiler in rigidposition and extending towards the fines, not shown, and having an outer head plate 11in which the soot blower is mounted.

' Within and longitudinally of the wall box,

' passes from 'V part .ofthe blow tube 12 islocated,.ithaving nozzles not shown for the exit of steam and the like ther-etrom for directingthe steam against the boiler tubes, as is well known in the art. Theouter end of the tube .12 is screwed or otherwise secured to atubular coupling 13 carrying a sleeve 14 rotatably mounted in plate 11. couplin 7 low tube extension 15 that extends to the outer end of the blow head mechanism. It is observed that the extension tube 115, coupling 13 and blow tube 12 constitute one continuous rotatable through the blow tube.

15 through an anor openings a chamber 1n the steam head 116 communicating with a gooseneck or offset the. right hand 7 The outer end of the 13 is screwed or otherwise secured chides a valve seat 25.

red in the bearing 27 which blow tube construction tor the passage of steam to and.

steam pipe fitting 17, which is supplied with steam throughv a, pipe or riser 18.,in turn sup l ed'by the main 19.. The ooseneck .is hel 1n plaee by a bar 20, whic issecured b. a bolt2l to the plate 11, said gooseneck .1 carrying an ear 22 which connects the :trap 20 to the gooseneck 17in rigid relaion. I

The steam head -116dhasla chamber entirely surrounding the blow tube extension 15and=the series of ports lfitherein, .andto prevent any relative lateral displacement of 1 he steam'head and tube extension, there are outwardly turned shoulders on the tube extension 15. To enable .the steam head tov be mounted on the tube,vit is formed of right and left hand sections secured together by fill bolts 61 and abutting against the shoulders 50, as shown. Suitable packing means 62 sand- 6 3 are associated withsaid steam head sections andsurround the tube extension 15, tor renderingthe chamber in thesteam head 116 steam "tight, and yetpermit the blow tube construction to turn easily in said head. Theouter end of the tube extension 15 is closed and the lower end of the steam head 116 is flanged'and bolted to the flanged upper end of the'steamjconduit or gooseneek 17. as shown;

l3ythe foregoing arrangement the steam head isflheld 'rigid and furnishes a firm bearing for the tube extension'15-of the blow tube construction, so thatthe parts of the blow tube construction will be main-' tained in alignment and be perfectly bal- .anced in the steam head, and the steam will enter-equally through the ports '16 as the head 116. is considerably spaced from the ports so as to provide the chamber entirely surrounding all the ports. I 5

The head of the gooseneckl'? is recessed as at 23 to receive a ring member 24:, which in- Extending axially of slidably supportis of fluid tight Thestem 26 0arries a valve the seat 215 i t said valve'seat is a stem 26 construction 28 which is adapted to engage and close the/"fluid supplying passage.

willcbe observed from a. comparison of Figs.

-1 and.2 thatthe valve 28 is normally manr tained uponsits seat bythe fluidpressure.

-' The valve actuating mechanism consists of a. bracket construction including a pair of .complemehtary pipe embracing clamps 29 suitably secured together in pipe engaging tion.

and adjusted position by the

bolts

30 and 31 and said clamp construction constitutes a lever support for there is provided in each of the projecting ends thereof a pivot 32. Pivot-ally supported thereby is a weighted lever 33 including a socket ,34 and provided with a pin 35 or suitable cable support. Said lever 33 is provided with a stop 36 and a handle forming extension 37, which is weighted if desired.

A cable 38 has one end passed aroundthe support 35 and saidend 39 is clamped to the body portion 38 by the clamp construction 40. Any other equivalent and adjustable construction may be substituted for the foregoing cable anchorage. The other end of the cable 38 is connected to a link 41 connected to a spring 42 anchored as at 43 to the gooseneck construction. A lever 44 is pivotally supported at 45 on an ear 46 carried bythe gooseneck construct-ion. The lever 44 is pivotally connected at 47 to said link 41. The lever 44 includes an elongated slot 48 and said slot is adapted to receive a pin 49 which extends transversely of the stem 26 and is secured thereto through a block 50. A nut is associated with said stem and block for adjustment purposes. 1 V

The operation of the valve mechanism is as follows. A single throw of the lever 33 from the position shown in Fig. 1 to the position shown inFig. 2 throws the connection 35' on the lever 33 past center pins 32 as indicated by the dotted lines in Fig. 2. The spring 42 tends to retain the lever 33 against movement from either of its extreme positions on opposite sides of a dead center. The single throw of the lever, which is relatively quick, secures substantially instantaneous opening of the valve 28 since the link 41 moves the lever 44 that causes pin 49 carried by block 50 to move into the position shown in Fig. 2., When'the valve is open, the steam pressure in the supply line 18 cannot close the valve or change lever 44 and cable 38 to reposition the handle or control Fig. 2. The lever 33 is pivoted so as to OS- cillate vertically. When in its downward position as indicated in Fig. 2, after passing the dead center. the lever holds the valve in its opened position and in such position overcomes the pull of spring 42 until it is moved back to the upper position. When the handle, however, is again actuated and moved from the position shown in Fig. 2 to the position shown in Fig. 1, the spring 42 tends to seat the valve 26 and hold the weighted lever in the elevated position. This seating action is accelerated and maintainedby the steam pressure supplied to line 18, thereby cutting oil the steam supply to the swivel tube and blow tube construcby plate 11 and the steam head 116. lever 33in other than the position shown in blow tube The pressure also helps to hold the weighted lever elevated. ports, a sprocket wheel concentric 0 From the foregoing it will be readily apparent that with the exception of the adjustable, detachable clamp 29 all of the valve mechanism is assembled and associated with the gooseneck l7,

ter, for all that is necessary is to adjustably and rigidly secure the clamp 29 at the desired position upon the riser 18 and make a final adjustment through the cable clamp 40. The stop 36, as is illustrated in Fig. 2, limits excessive over-center or looking movement. 1 In addition to the foregoing feature of the invention the following is to be observed. The sleeve 14 is secured on sleeve 13 by set screw 56 and is herein shownformed integral with a sprocket wheel 150 and said sprocket wheel is adapted to be associated with a chain 51 in mesh with a pinion 52 carried by shaft 53, in turn rotatable by handwheel 54. The'pinion and handwheel construction is adjust-ably butrigidly, as well as rotatably, mounted upon the pipe 18 by the bracket mounting. Rotation of the handwheel 54 rotates sleeve 14 and, therefore, coupling 13 andtube 12, and extension 15. Herein the connecting portion between the sleeve 14 and the sprocket gear 150 is shown provided with an annular flange 57 that is grooved as at 58. The peripheral groove 58 is adapted to receive a tongue 59 of a bracket member 60 which is detachably but rigidly associated with a complementary bearing portion 61 by means of the bolt and nut construction 62.

Thebearing portion 61 andbracket 60 are carried by the outwardly extending end 63 on the upper end of bar 20. The foregoin arrangement strengthens the mounting o the sprocket wheel 150 so. that the pull of the chain 51 will not tend to distort or destroy' the alignment of the parts of'the blow tube construction as maintained in position The'invention claimed is:

1. A soot blower mechanism including the combination of a wall box head plate and a blow tube rotatably mounted thereinadapted to be mounted in a boiler, a blow tube extension removably connected with said blow tube and extending outwardly there from and in alignment therewith, so that the and said extension are rotatable as a unit, said extension tube being closed at its outer .end and intermediate its ends having a peripheral series of ports, a rigid valve-controlled steam conduit, a steam head mounted on and carried by said steam conduit and independent of said head plate and surrounding the blow tube extension and spaced from the series of ports thereinso as to furnish a steam chamber surroundin the the and thus the installation of the blow tube is a relatively simple matarrangement 55 or equivalent blow said extension near the tube extension and rigidly secured to head plate, downwardly extending means for operating said sprocket wheel, and means secured to said head plate for resisting the tendency to downward movement on the part of said sprocket wheel while it is being turned by said first mentioned means.

2. A soot blower mechanism substantially 10 as set forth in claim 1, inwhich said means for resisting the tendency to downward movementon the part of the sprocket wheel consists of an annular flange connected with the sprocket wheel, and means secured to and extending from the head plate upon which the underside of said flange rests and rides as the wheel is turned,'-substantially as set forth.

In witness whereof, I have hereunto affixed my signature.

ALBERT H. LoUoKs.