US1523382A - Atomizing nozzle - Google Patents

Description

Jan. 13, |925,

W. O. REW,

ATouIzING NozzLE med May 17. 1918 2 Sheets-Sheet l W. O. REW

ATOMIZIHG NOZZLE Filed May 17, 191e 2 Sheets-Sheet 2 i nmuoz m WW Patented dan. 13, 1925.

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WILLIM o. nliwfor" sunnita,"CALIFORNIA assiettes. *ro GOLDEN s'rarn MILK PRODUCTS COMPANY, or SAN FRANCISCO, CALIFORNIA. a CORPORATION or CALI- Fortuna. f j

atroIaIzIIvG nozzLE.

Application fued May 17,-1918. *semi No; 235,130.

To all whom t 72mg/ concern.'

Be it 'known' that I, TILLIAM O. REW, a citizen of'the'Unlted States, residing at Eureka, in the county* of Humboldt and` StateV of California, have invented certain new anduseful` Improvements in Atomizing Nozzles; and I do hereby declare the following to be l'a'fulh` clear, and exact description-of the "same, lreference being had to the accompanying drawings rforming part of this specification.

Thisiinvention `relatesto atomizing noz zles'particularly those intended for use in desiccating milk products, the principalpobject being to` provi'dea nozzle more efficient thanvv those now ih use"and one which can be cleanedfwit-h great facility.

Inf the drawingsfe Fig. luis an elevation `of the nozzle in place in the air Vduct which is shown in section.` p

Fig. 2 is a-cross section 'on the line 2-2 of Fig. 1`

Fig. 3 is a 'vertical cross section'through the' center of the atomizing nozzle.

Fig. rIl is a vertical sectional view taken on the irregular line --Jl of Fig. 3.

Fig.` 5 is a view of the central core partly broken away to show the interior arrangement.` i Y The atomizing nozzleincludes a stem 1 connected to the main steam line 2 by a couplingf-S of the usual'llcind and joined at its other end to a head t which in turn is fastened to the central core 5 by a screwthreaded extension 6, the joint between them being provided with a metal gasket 7 preferably of lead to securely close the upper end of the ducts 87 equispaced about the central orifice 9 of the core, which orifice communicates at its upper end with the chamber 10 which is cut in the upper end of the core 5 to provide communication between the ducts 8 and the steam channel 11, the latter being flared as at 12 to direct the steam through the spaced ducts as well as through the central orifice 9. A plural ity of radial holes 13 are spaced around the cylindrical end of the central core and communicate with an annular air space 14 surrounding the upper end of the main flaring orii'ice 9, in order to provide a circulation of air about this orifice and the ducts to cool the walls thereof. As best seen in Fig. 4, the holes 13 are arranged in threes and are spaced between the vertical ducts 8, thereby carrying oli" a considerable quantitv of heat. A ledge 15 closes the top of the chamber' 111: against the steam and is lsecurely brazed tothe central piece 16 of the core. the necessity for this piece 1G being for convenience in forming the air chamber 14. The lower wia-ll of the central core is bell-shaped, as at` 17, to provide a flaringV central orifice and the `core is provided just above this point with threads 18 to which is attached an annular thi'mble nular wall 24 in close proximity to the lower end 25 of the annulus 19 and forming therewith a small annular air `orifice 26 for the air chamber 27 formed between the upperiwall 28 of the shell and the outer vsall of the coreY and also between the` lower tapered end 241 of the shelland the outer wall of the annulus 19, the two parts ,off

this airchamber 27 con'imunicating through. l

the holes 29 in the lug 21. Secured to the threaded end 311-of a horizontalextension AI 32 ofthe shell member isxa bowl member..

33 having a tapered wall 34- narrowing towards the wall 24 of the shell to form a milk reservoir 311/ and also having a vertical skirt or sleeve 35 perforated as at 36 to permit air to pass therethrough to the concentric orifices just described, but preventing a current of air from interfering with the operation of the nozzle, The bowl member 83 and also the cap member 37 which secures the shell to the head are provided with wrench holes 38 to aid in securely fastening the various parts of the nozzle together.

In order to space the nozzle in proper relation to the air tube 39 a spider 40 is pro; vided consisting of a collar 41 loosely sli-ding on stem 1 and having mounted thereon a plurality of spacing members 42 for holding the nozzle approximately centrally of the air pipe. The shell member is pro-` vided as at t3 with a Aiilk channel leading to an upper milk pipe lll integral therewith, which is threaded at its upper end to receive a milk conduit leading from the main reservoir.

In operation, milk is led through the conduit 4-5, thence through the pipe lll to the milk chamber 534- and forced out in the form of a fine spray through the nai'- i'od annular slit between the shell and the bowl member. Steam is admitted through pipe l and at the top of the core separates into a plurality of streams partly passing through the Haring central orifice 9 and partly passing through the vertical ducts 8 which lead at their lower ends to the annular steam channel 20, the orifice of this channel directing the flow of the steam almost at right anglesto the flow of the milk through 'its annular orifice. Air is admitted through the large holes 46 in the upper part of the shell member and passes partly into the air chamber 14 to cool the core member and also passes down the air chamber 27 and out the orificel 26 which is directed atan angle approximately inidway-between the angles 'of exit of the steam and: milk. In this way the milk is discharged into the desiccating chamber in an extremely finely divided state enabling the steam and heated air to readily'extract all of the' moisture present therein, depositing the Asolid materia-l of the milk at the bottom vof the desiccating chamber in a lfine white powder.

lVhat is' claimed is:

l. ln an atomizing nozzle, a central bore having a centralV orifice and a plurality of auxiliary orifices surrounding the central orifice, an air chambei1 closed at its forward end and located between the central orifice passageway, and a cylindrical sleeve on said member to cooperate with said bell shaped1 extensionto form a chamber into which said discharge passages lead.

y'l. A centrallyy perforated nozzlemember havingV a 'plurality of discharge passages spaced about said central perforation, a bell mouth forming an extension of the central (itl passageway, and a cylindrical sleeve adjustably mounted on said member to cooperate with said bell shaped extension to'forin a chamber into which said discharge'pa'ssages lead and to provide an annular orifice, from said chamber.

A. centrally perforated nozzle member havinga' plurality of discharge passages spaced about said central perforation, an air chamber closed at its forward end and located between Atliecentral perforation'fand the discharge passages and having an outlet between two adjacent discharge passages. j G. A nozzle member having a central oritice, a plurality of parallel Vdischarge passage-- ways surrounding the central orifice and au annular airchambei located between said orifice and passageways, a flaring extension forming a continuation of said orifice, an annular sleeve cooperating with said eXtension to define a chamber the entrance to which is through saidv discharge passageways and the exit to which lies between said sleeve andsaid extension. Y

WILLIAM O. REW.

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