US1848645A - And wladyslaw czarnecki - Google Patents

Description

March 8, 1932.

T. w. MURPHY ET AL 1,848,645

QUENCHING EYSTEM 2 Sheets-Sheet 1 Filed June 18, 1928 WITNESSE$= mmvroks: TYZoIZasZaI IZ M & a w al'nfl Z BY 9 Q I v I ATTORNEY.

March 8; 1932. T. w. MURPHY ET AL 1,843,645

QUENCHING' SYSTEM Fi eeeeeeeeeeeeeeeeeeeeeeeeee t 2 \IHOMAS W. MURPHY, OF'GAMDEN',

Patented Mar. 8, 1932 PATENT ()FFICE NEW J ER-SEY,'A 'N D WLADYSLAW CZARNEGKI, OF ED- DINGTONQPENNSYLVANIA, ASSIGNORS TO MONARCH MANUFACTURING WORKS,

INC., OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF DELAWARE QUENCHING SYSTEM Application filedJ'un-e 18, 1928. Serial No. 286,467.

Our invention relates to quenchingsystems such as are used for wetting down or "quenching ashes under large boilers.

The quenching systems now in use are usually so'co nstructed as toproduce a hollow conical spray which leaves dry or comparativelydry areas inwhich the ashes are un-' quenched. While'various attempts have been made to provide for replacement of parts which are subject to'eXcessive heat and conse- 'quent erosion, such attempts, so far as we are aware, have not resulted in satisfying the I long'existent demand for simple and easily operated means for making such replacement,

nor has provision been'made for interchange of nozzle tips with diiferent sized orifices for varying the capacity of the quenchers,or for protecting the nozzles and their tips from exj The objects of" our invention are to provide a' nozzle construction which will spray: the liquid uniformly over theentire'area of the ash hopper; to provide a nozzle construction which maybe readilyfremoved from the ashhopper i't'rom the outside regardless of the ash content of the hopper; to provide a nozzle construction which permits of quiclr "interchange of nozzle tips; to provide means for'protecting. the-nozzle from damage due to impact of heavy bodies. and to provide means for protecting the working parts of our mechanism from direct radiant heat.

Our inventlon cons sts in the. hereinafter described mechanismand combination and arrangementof mechanism for attaining the above mentioned objects.

"In the drawings: I y Flgure 1 shows, in CI'OSS-SCtlOIl, an ash hopper upon whichour improvedquencher has been installed; I

Figure 2 isa central vertical longitudinal sectionthrough a quencher constructed according to our invention, showing theheight of the. liquid the nozzle'body when the quencher is not inoperation,

V Figure 3, an enlarged fragmentary section,

V takenin the same plane as Figure 2.but showmg the quencher in operation, and

. Figure; a cross-section taken in the plane of line H on Eigure'3.

The quencher shown in Figures 1 to 4, and indicated generally by the reference numeral 10, has a sleeve 11 provided on its rear end with a flange 12 adapted to be secured to the outside of the wall 18 of an ash hopper 14, A nozzle body 15, enclosed in sleeve 11 and spaced from its interior Wall, is provided on its rear end with a flange 16 adapted to be secured to the outside of flange 12, as by tap bolts 17, aperture 18 for receiving the end of a conduit 19 connected to a source of supply oi liquid under pressure.

A nozzle head 20 is removably secured to the delivery end of the nozzle body, preferably by being threaded therein, and a nozzle tip 21, having a discharge orifice 22, is secured in its outer end, preferably by being threaded therein. The body of the tip is of large diameter compared with the discharge "of comparatively small diameter at its rear end 25, both parts being circular in crosssection. The bell mouth wall of the tip and the wall of the concavity in the head form a chamber which is closedat the front, except for the discharge. Inlet passages 26 and 27 lead from the interior of the nozzle body and enter tangentially the large and small parts of the chamber, the inlets being disposed at opposite sides of thechamber and enter their respective parts of the chambers at tangencies, of opposite clockwise directions to the peripheries of the Chambers, As shown in the present embodiment, the passages are in parallelism and the flow of fluid of both passages is in the same direction (see Figure 4 of the drawings). However, when thefluid has entered the chambers the flow in one will be in a clockwise direction and that in the other in a counter-clockwise direction.

,lVhen a single jet of liquid under pressure enters a pipe tangentially, it forms a cylindrical. stream of swirling liquid Within the periphery of. the pipe.

In'this case, liquid under pressure enters the larger part of the chambertangentially 'and forms a cylindrical stream. within its periphery swirling in one direction and an-.-

otherwjet of liquid enters the smaller part of the chamber and forms a cylindrical stream "swirling in the: opposite direction. The counter streams or currents me'etat an angle, near the discharge o'rifice, and a part "of both streams are broken into globules which separate from thecentrifugally driven streams and are discharged from the nozzle into that part of the cone of spray ;which would usually be hollow, thereby producing a much more uniform distribution-of spray than would otherwise be had.

In practice we find it advantageous to make part 24, of the concavity in the nozzle head ofcon'siderably larger diameter than part so that the stream fromfpart 25 meets that from part 24 upon the bell mouth of the tip and not far from the discharge'orifi'ce, as

shown in Figure 3.

:The body of the nozzle "is preferably of 5 larger diameter thanthe inlet pipel9 and the nozzle tip so disposed that, when the how of liquid through pipe 19-is shutoff, a pool of liquid 28 is left in the lower-part ofthe nozzle body, as shown in FigureQ. This is radiated by the ashes.

i i-beyond the'nozzle t p to protectthe opera-v vgradually evaporated by heat from the ashes and produces a vapor which passes through' the' outlet orifice' and protects the nozzle tip from the fullefiect of the heat Theupper front'end of'sleeve 11 extends itive parts of the nozzle from the injury from I zle parts against the clinkers' or other hard objects which maybe I dumped into the ash hopper, and the space full efiect of the heat "in theashfhoinper. When the, nozzle discharges at 'ajdownward angle, as shown in Figures 1 to 3, the upper front 29 of the sleeve is preferably inclined downwardly.

Conduit 19 is preferably provided witha union not shown). adjacent" the quencher so that thenozzle may be'reinoved from the sleeve by simply disconnecting the union and removing bolts 17.

'V Vhile we have shown and described our invention asapplied to a particularuse, it

I tions as fairly come within the scopeof maybe appliedto other uses without depart- 'ing' froni'ithe spirit thereof, and we do not wislrto limit o'urselves to the'precise construction set forth, but consider that we are at liberty to make such changes and alterathe appended claims.

e claim v In a quenching installation a. nozzle' comprising a cylindrical-housing,fmeans closingone end of the housing, said means having a chamber therein communicating with ing;

between the sleeve and the nozzle body provides an air chamber which protects the nozthe housing. wholly above the axis of said housing and with an outlet orifice wholly below the said inlet, and means to admit fluid into the housing. V

(I .2. In a quenching installatio 'r'v a nozzle comprising a cylindrical housing, means to maintaln the housing with the axis in a horizontal plane, means closing one end ofthe housing, said,means having a chamber therein; communicating with the housing wholly above theaxis of saidihousing and with an outlet orifice wholly below the said inlet, and

means to admit fluid into the housing.

3.'In a quenching mstallation a nozzle comprising a cylindrical housing, means closing one end of the housing, said means having ,"a"chamber therein declined to the axis of the housingcommunicating with the housing vwholly above the ,axis ofsaid housing and with "anfoutlet vorifice wholly below 'thefl'said inlet, and means to admit fluid into the housl; In. a quenching installation a nozzle co-mprism'g a cylindrical housing, means closing one end of the "housin aid means-havthe housing wholly above the axis'of said ing a chamber therein communicating with housing and with an, outlet orifice wholly below thesaidinlet, a shield enclosing and spaced from said housing and closing means,

and means to admit fluid into the housing. 5. In a, quenching installation a nozzle comprising'a cylindrical housing, means closing one'end of the housing, said means having a chamber thereincommunicating with the; housing wholly vabove the axis of said housing and with an outlet orifice wholly below the said inlet, and means opposite the closing means to admitlfiuid into the housing.

6. In at quenching installation, a nozzle;

comprising a cylindrical housing, means to maintain the housing with the axisin a horizontal plane, means closing one end of the housing,saidmeans having a chamber therein declined' to the axisof the housing commu-. nicating with the housing wholly above the axis of said housing and with anoutlet orifice ,wholly below the said inlet, and means to Vadmitfluidinto the housing. 7 I 1 7 111 a quenching installation .a nozzle. comprising a cylindrical housing, means tomaintain the housing with the axis in .a hori-' zontal plane,means closing one end of the housing, said means having a chamber therein communicating with the housing wholly above the axis of said .housing and with an outlet orifice wholly below the said inlet,a shield enclosing andspaced from said housing and closing means and means opposite theclosing meansto admit fluid into thehousing; f

8. In a quenching installation. a nozzle comprising a cylindrical hous ng, means closmg one end of the housing, saidmea-ns having a chamber therein declined to. theaxis' of the housing communicating with the housingwholly above the axis of said housing and with an outlet orifice wholly below the said inlet, a shield enclosing and spaced from said housing and closing means, and means opposite the closing means to admit fluid into the housing.

9. In a quenching installation a nozzle comprising a cylindrical housing, means to maintain the housing with the axis in a horizontal plane, means closing one end of the housing, said means having a chamber therein declined to the axis of the housing communicating with the housing wholly above the axis of said housing and with an outlet orifice wholly below the said inlet, a shield enclosing and spaced from said housing and closing means, and means opposite the closing means to admit fluid into the housing. 20, In testimony whereof we have signed our names to this specification.

THOMAS W. MURPHY. v WLADYSLAW CZARNECKI.

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