US1781108A - Exhaust connection for condensers - Google Patents

Description

Nov. 11, 1930. J. F. GRACE EXHAUST .CONNECTION FOR CONDENSERS .Fil'ed Dec. l2, 1928 Patented Nov. 11, 1930 *t UNITED STATE-s l1 .;'rE1\lV-r OFFICE JOHN E. GRACE, OE ARLINGTON, NEW JERSEY, AssIGNOE To or NEWYOEK, N. Y., A CORPORATION OE vm- ,AND MACHINERY CORPORATION,

GINIA WORTHINGTON BUMP EXHAUST CONNECTION Eon CONDENsEEs 1 Application` led December 12, 1928. Serial No. 325,624.

rlhis invention relates to' steam condensers of ythe surfaceV type and'more particularly to an exhaust steam connection between the engine, such as a ysteam turbine, and the conu 5 A 'denser.

An obj ect of theinvention is to provide an exhaust connection which will prevent the Vformation of vortex in the steam during its passage to the condenser and which will guide or straighten the passage of the steam so as vto facilitate .its equal distribution through @the condenser and prevent the larger part of the steam from flowing towards the generator side ofthe condenser, as is the normal tendency of the steam.

A further obj ect of the invention is to provide anv exhaust connection as specified in which an expansion or yieldable joint is embodiedwhich relieves or' reduces the atmospheric thrust on the top of the turbine.y

. With these objects inview, theinvention consists in various. features of construction and combinationof parts, which will be firstv described in connection 'with the accompany'- `ing drawings, showing anexhaust connection 'for condensers of the. preferredV form` embodying the invention, and the features forming the invention will be specifically pointed out in the claims. y f i Fig. l is ar section through' theimpro'yed exhaust `steam inletconnection showingv it connected to a turbine and a condenser.

vFig. `Qv-is a view partly in section and partly in side elevation of an alternate construction of the exhaust steam inlet, and Fig. 8 is a section through a further modifiedor alternate form of the exhaust steam y connection showing it applied in connection with a vertical condenser.

Referring more particularly to the draw ings, the improved exhaust connection 1 is shown connected to an exhaust steam co`n denser 2 of any approved construction, it be ing understoodthat the exhaust steam inlet connection may be applied to surface con` densers of ,any approved type, without departing from the spirit of this invention. p

' The connection 1 which serves to guide the steam from the exhaust of the turbine 3- into the condenser has its walls 4 inclining invdistribution of the steam. over the condenser the steam, on engaging theinwardlytaperwalls, thereby providing aplurality of ex wardly lfrom the inletvend of the 'connection for a predetermined 'distance-which'gradually reduces the cross sectional area. ofthe connection to the predetermined point. F rom the innermost point of inward tapering ofthe walls 4 they taper outwardly for a predetermined dist-ance either to their connection with the condenser 2 as shownin Fig. 1 of the drawings or to a predetermined point as desired. The walls lV are curved as shown at 5 to form curved junctions betweenthe inward 'and Outward tapering portions of the walls vto prevent the formation of abrupt shoulders or edges which might have a tendencyto cause eddies in the steam during its passage to the condenser.'

Owing to'themann'er-in which the exhaust steam lisf discharged yfrom the turbine 3 the 'natural tendency of the steam is to go towards one side of the condenser resultingV in unequal area. "However with the walls tfofthe ex- 1 haust connection l tapered as ,above specified,

ing portionsV will be deflected transverselyT across the exhaust connection, causing its'distribution throughout the .connection and its equal .distribution tothe `condensing surface within` the condenser shell and Aeliminating Y sinuous travel of the 'steam as well aspreventing the forming of vortexfinthesteam.

In Fig. 2 'of' the drawings, an" alternate arrangement of the exhaust connection is shown, vwhich fis particularlydesigned for a low.v head system-and 4in this modied form the connection is made to'provide a plurality of passages,"such-ars 10 `and l1 for the steam from the turbine exhaust: :1 2f`into 'the con-V denser 13. Eachloff'thepassages lO and 11 have their walls It'incliningor tapering-in- :termined point where! they are connected by i means ofan expansionjoint'l-tothe out#v wardly tapering orinclining section lof the haust connectionsV for guiding thefexhaust steam from 'the turbine into'fthe condenser, i Whichare of'gradually decreasing cross sec-- tional area for a part of their length, and of gradually increasing cross vsectional area forV another part of their length, while the porhaust connection 2ly between-'the condenser 20" and .the turbine 22 so that thesteam willjbe :guided `laterally intoV the "condenser '201'V The 1 i vexhaust connection 21 embodies the inletisection .22,the Walls of which(taperinwardly for ;the majorportion of .tliefleiigth oftliis tions confined within theexpansion joint l5 areof substantially uniform cross sectional area. The expansion joint l5 permits relative movementof the condenser orturhine without transmission of such movement from oneto the other, relieves or 'reduces the'at mospheric thrustonl the top of the turbine as ing and permits more'rigid 'mounting of of surface condenser A2O is'shown with anexv section. Thesection Q Zlias a tightslip, joint connection 23Y withy thesection 24 ofthe exeven and sinuous How to a parallel `iiow of y fand guide'it intofthecondenserQO. j From the f regoing 'descrip-tion, taken ,in

definedfhytheffcl'aims #What isclaimed is :V

even velocity, consequently facilitating the.'

distribution yof the steam to the deflectors 27 which change the direction of flow of steam lconnectioii'vvith the accompanying drawings,

it-will be apparent that .in eacliandevery one of the. formsof exhaust. co-I'mectionfshown inY fthe drawings, a Yno'zzlefor passageway o f converging diverging cross lsectional' area is p'rovid'ad whichl straighten the flow and distribute .the steamuto causeits p rofper distribution'f'in the condenser.

j It willhe understood'thatthe invention is not bei limited' 't o the specific construction tor'arrangelent 0f parts-shownbut 'thatA these Vmay befhiod-edlwdely Within.thelilihtion "15 l .L1 movement of such sections and-preventtransofthrusts'from'onefseletionftothe f t lzfAnexhauststeami surface condensersfincluding a-sh'ell having `its wallstaper'ing inwardlyffor a1predete1jymined distance'from the Vinlet of the connec- I jtionyand tapering'outwardly .for a Apredete r- 1 mined distancefromlthe 'innermost' p 0ii.i `t of l the inward tapering, and-an expansionjoint forming val junction "between the inward and outward tapering portiQIlS ofthe-walls,

2E Ani exhaust steam inletjconnection for surface condensersincludinga shell having its wallstapering' ;inwardly.for@predeter minedsdistancepfromthe innermostpoint o f Y the inward.;tapering,V and a moveablejointi Vforming a 4junction between theinyvardand Outwardtapering pertiene Qfthewalis,

forming the unction between the inward and ymined di ward and outward tapering portions. of said Vsections lmission nletf Connection; fr]

. 3.- The ycombination with Ava surface type .steam condenser, of an exhaust connection for guidin the steam into the condenser, having its weils tapering inwardly for a predeter mined distance from the inlet of the connecf tion andftapering outwardly from the innermost peint 'of' th i inwardvtapering -to its outiet `in tothe condenser, and amoveahlejoint oiixtward ataprf'ing :portions of thefwallsf.; 151', 75` Theicombination'withl1a surface-:type steam condenser, ofan exhaust connection for'giiiding-steamiito the condenser embodying a plurality lof passages, the VWalls of said passa-ges*taperigfinwardly for a predeter- 80 vstancefromtlie inlet of-fthe connec` tion and taperingoutwardly foi-af'pre 'mined distance the 'innermost inward;tapering]QftheWaHS- i 5. The combination' with a Nsurface "ty15e-85 steamy condenser, of an l`.exhaust rc orijnection Y forl guiding steaminto ythe con erem'b'odying'apluralityfof passages,'tl `ie walls offfsai'd passages tapering inwardly'forfa predeter-j A mined distanceV from the inlet ofthe connec- 901 tion and tapering outwardly for 'a' predeter- :mined distance from` the'innermost`r pointfof f inward taperingof the walls, and an expansion j Oint'y forminga junction between theinf walls. Y '6. A nexhaust s teamfinletconnectionfor 'Surface rldensersof oonve'rgmssdlversing rcross section area composed of a pluralityoff and a movable iQIlt Connectieaisad 100 Y` sections. 7, An exhaust steam inlet connection for surface condensers f ofconverging, divergin'g cross section area'and an expansion jointeni-v bodied in saidfexlijaust steam inletrconnection. m5#

` 18;- Angexhauststean inlet connection lfor vSul'rface condensers ofconvergin'gdivrgilg cross section areaandcompos'edof aplurality certainof said sections, .tofpermitrelativefno

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