US984871A - Soot-blower. - Google Patents

Description

momes F.. WHITE,.0F PHILAnELri-HA, PENNSYLVANIA.

spor-snoeren.

Scecicatioii-bf-Ltters Patent. f Patented Feb. 21, 1911.

Application ined July es, i910. serial N o. 574,003.

To all whom 'it may concern:

Be it known that I,l THouas'E. W'Hrrr.,

' a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain Improvements in Soot-Blowers, of which the following 4is ,a specification.

My invention is designed to provide improved means for clearing boilers of soot.

My improvements, in their preferred con struction, comprise 'several groups of nozzles separat-ely mo 7able through a boiler casing, into operative position," by the pressure of 'the -iuid used in blowing the soot and means for automatically withdrawing the nozzles when thelow of fluid is cutl off.

The characteristicy features of my improvements are disclosed in the following description and the accompanying drawings in illustration thereof. y

In the drawings, Figure 1 is a side elevation of a boiler having my improvements a J lied thereto' Fio. 2 is an enlarvfed sec` tional view taken on the line 2 2 -of Fig. l; Fig. 3 is an' enlarged top sectional view, representing details of construction, and Fig. t is a sectional view of the `end of a nozzle. y

' The apparatus, as illustrated in the drawings, comprises'-the casing 1 which incloses the boiler having tubes 2, the casing being vided with cylindrical .terminals 9 in.

providedfwit-h vert-ical chambers 3 extending transversely to the tubes and .separated therefrom by diaphragins 4. The boiler has the top f its drum connected with a duct 6, controlled by a valve 6', which carries steam to the branch ducts '7, controlled by valves 7, whence it is distributed through the headers S to the ducts 9, controlled b v valves 9. The respective ducts!) are prowhich are disposed tubes 1() adapted `to reciprocate therein. is connected by a header 1l with parallel nozzles 12 which are adapted to move through the corresponding diaphragm #1. Ilach nozzle has a plug 12 in the forward 4end'thereof and the diverging passa es 1Q therein, by which the fluid discharge therethrough is spread. Coiled springs 13 are disposed between the respective diaphragme L1' and the corresponding headers 11, whereby the nozzles are lnormally held inthe withdrawnposition shown in Fig. 3. When, however, the valves 6 and .7 are opened so that steam can flow from the drum 5 Vto f steam` fiowi'ng through .duct- 9 will exert Each of the tubes 10` the header 8, upon opening a'valve 9 the the corresponding' an unbalanced pressure' against the inner ends of the tubes 10 and lthe plugs 12, the nozzles beingthe'reby carried through their diaphragm. Steam will nowbe discharged through the nozfzlesfoft-h'e set or sets which have been car;

ried inwardly so that their forward ends lextend between adjacent tubes and will discharge diver-ging jets that will blow off the soot effectively. I.

As 'eachof the chambers contains severalsets of nozzles adapted to'be operated independently by opening the corresponding valves 9'.. it4 will vbe understood that the groups of iozzlesran be caused to blow in sequence an the blowing can be `carried on progressively through the several passes from the grate chamber 14 to the flue 17. The arrangement shown is adapted for use with aboiler having lbaiiles 15 disposed transversely to the tubes and forniing'ven ticalpasses 16 into each of which three sets of nozzles 1Q discharge so that cleaning can be effected by blowing progressively from the inlet to the first pass to the outlet of the Then the 'valves 7 are closed l and the valves 9 are open, check 'valves 18,"`

last pass.

closed by the-steam pressure and automat-ically opening when the steam is cut off, permitlair to be drawn through the tubes i) and nozzles 12, whereby the latter are dried out and .corrosion therein prevented.

Having described my invention, Iclaim 1. In a soot blower, a duct having a. cylindrical terminal, a tube adapted to recipl rocate in said terminal, a Atubular header fixed to said tube and a set of nozzles fixed to said header, said nozzles being provided with divergirg discharge passages.

In a soot blower, the combination with a. .boiler having a casing and successive passes therein. of several nozzles communicat-ing through said casing witheach. of said passes, and means wherebyiiuid can be discharged through said nozzles in sue cession.

3. In a soot blower, the combination with a boiler having'tubes and a. casing having .chambers extending transversely to said' tubes, of several sets of. nozzles disposed in each ofsaid chambers, 'and means lwhereby eachset 'of nozzles can beV reciprocated injdependently ofthe others.

4. In a soot blower, the combination with.

boiler having tubes, afdrnm, and a casing containing chambers extending transversely to said tnbes, of several nozzles disposed in stearn pipes, means for eonneeting the res eetlve steam p1pes with sets of said nozz es, and means whereby each set of nozzles 15 v "the respective chambers, a' duct connected is reciprocat'ed.

cated through. 'said' diaphragm, several In wltness whereof I h'ave herennto set my hand m the presence of the subscribing Awitnesses, this 23 day of July, 1910,

4THOMAS E, WHITE.

Witnesses:

ROBERT JAMES EARLEY, Jos. G. PENNY, Jr.

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