Патент USA US2405838код для вставки
Aug. 13, 1946. A. LAWSON ET A1. ¿2,405,838 LIQUID SEPARATOR APPARATUS Filed' March l, 1944 2 Sheets-Sheet 1 in; un 7071171711711 11 I8 l/ 2/ 1624 33 I? 2"/ BY ? Y ñ l _ > ATTORNEY. Patented Aug. 13a, 1946 ‘ 2,405,833 UNITED STATES PATENT oFFlcE 2,405,838 LIQUID SEPARATOR APPARATUS Archibald Lawson, East Orange, N. J., and Charles M. Young, Newburgh, N. Y. Application March 1, 1944, serial No. 524,562 5 Claims. ' , f (c1. 21o-43) This invention relates, generally, to improve ments in apparatus for separating mixed liquids of different specific gravities; and the invention has reference, more particularly, to a novel ap paratus for separating oil from boiler feed water, -and especially for separating from Water of con densation any oil suspended therein prior to Z invention; and Fig. 2 is a horizontal sectional view thereof, taken on line 2-2 in Fig. 1. Similar characters of reference are employed in the hereinabove described views, to indicate corresponding parts. Referring ‘to the drawings, the reference char acter I0 indicates a housing, preferably of cylin return of Vsuch water as a feed supply to a steam -drical form, which is closed by a bottom wall Il generating boiler. and a top wall I2. The top wall I2 is preferably This invention has for an object to provide a 10 adapted to be removed from the housing I0, novel separator apparatus for the purposes stated being normally secured to a top flange I3 of the comprising a closed vhousing containing a plu latter by bolts I4, or other suitable fastening rality of spaced, substantially perpendicular, means. The joint between said top wall I2 and foraminous bodies or interstitial masses through top flange I3 is sealed by an interposed gasket I5. which mixed liquids of diiîerent specific gravities, 15 Arranged within'the interior of the housing such as oil bearing water, delivered into the Ill, to extend perpendicularly between its bottom housing, is successively passed; said foraminous and top walls I I and I2, are annular foraminous bodies or interstitial masses operating to retard bodies or interstitial masses IS disposed in con movement of suspended oil particles, whereby to centric spaced relation tov each other and to the permit accumulative agglomeration thereof into 20 sides and axial center portion of said housing, relatively large oil bodies, while at the same time whereby to provide an outer chamber or well I'I, exercising a capillary effect upon the accumu one or more intermediate chambers or wells I8, lated oil bodies, whereby the same tend to ascend according to the number of spaced interstitial through said foraminousvbodies vor interstitial masses employed, and an inner or central cham masses and discharge therefrom to the upper 25 ber or well I9. portion of the housing interior, and thus, by The foraminous bodies or interstitial masses I6 reason of the lower specific gravity of the oil are each held inplace by a pair of laterally spaced relative to that of vthe water, to collect and form cylindrical perforate walls or grilles 20, which a separated liquid oil mass within the upper respectively bound inner and outer sides thereof; interior of the housing, and above the Water 30 said Walls or grilles being footed within spacer mass, so that the lower portion of the latter Yis rings 2| which are suitably secured to the bottom free of oil. ` wall of the housing I0, and which embrace the The invention has for another object to pro lower marginal portions of said walls or grilles, vide a separator apparatus of the kind mentioned whereby to retain the same against lateral dis comprising a closed housing having means for 35 placement from their supporting relation to the admitting mixed liquids to be treated through side faces of said foraminous bodies or inter the side thereof, and yprovided within the interior stitial masses I6. thereof', for extension between its bottom and The foraminous bodies or interstitial masses top walls, with a plurality of spaced concen lIIS may selectively comprise suitably aggregated trically related foraminous bodies or interstitial 40 material adapted to provide a liquid pervious masses which are surrounded by open spaces or ` wells; said housing having means for discharging water from the bottom interior portion thereof, porous wall mass of desired width or thickness. The material employed to provide the foram inous bodies or interstitial masses I6 should be and means communicating with said open spaces of such character as to be non-compacting and or wells for discharging oil from the top interior 45 of such constituent form as to provide substan portion thereof. _ -Other objects of this invention, not at this time more particularly enumerated, will be un derstood from the following detailed description of the same. An illustrative embodiment of this invention is shown in the accompanying drawings, in which: tially uniform porosity, whereby the body or mass is not only pervious to the liquid mixture to be treated, but also adapted to exercise a capil lary e?fect especially upon one constituent of the 50 mixture which is desired to be separated from the other constituent thereof. i A preferred form of material, which has been found to provide the desired characteristics above ‘ -Fig. 1 is avertical longitudinal sectional View referred to, is formed from a knitted mesh fabric, o_f a- separator apparatus made according to this 55 preferably knitted from a metallic wire strand, 2,405,838 . f3 which may be or round, ribbon-like or other suit able cross sectional shape. Such knitted mesh fabric may be folded upon itself, rolled, or other Wise arranged to form a body mass or masses built up by superposed contiguous layers thereof, 4 Means is provided for introducing at desired times into the interior of the housing I0 high pressure steam for the purpose of cleaning or washing out the foraminous separator bodies I6. This means comprises a perforate steam ejection ring 33 which is disposed on the bottom interior of the housing, exteriorly of the foraminous sep arator bodies. Connected with said steam ejec tion ring 33 is a steam delivery pipeêa’ß arranged and disposed between the keeper walls or grilles 2B, so as to entirely fill the space therebetween from the bottom to the top of the housing inte rior. The knitted metallic mesh fabric, by reason of its uniformly and selectively sized 'interlinked 10 to project exteriorly through the housing side, and to be suitably coupled to a steam supply loops, when superposed and built up into the line 35. required body mass, will provide a porous struc suitably-located in the side walls of the housing ture, the interstices of which will net-‘only inter communicate but Will also be .substantially uni lil -are one or more clean-out manholes, normally formly distributed throughout the mass, :whereby -is closedïby removable manhole covers 3B of con to both efficiently engage and accurmulativelyY ventional design. `Inthe~»o`peration of the apparatus, as used e. s. agglomerate oil particles, while «at lthe Asarne ïtime to separate oil from boiler feed water, the mixture exercising a capillary e?fect on oil bodies _thus of Water and oil is delivered into the interior of accumulated therein, whereby to cause the latter, under capillary effect, to tend to ascend through 20 the housing Iû through the intake 22, so as to be deflected Íby ‘the 'deliector 'baule "£3 Land -thus ‘the interstitial mass, jan‘d, 'on "escape therefrom, caused Ito “flow around Í'the‘in‘terior ‘of l"the charn to collectas a water free *oil 'body at Jand within "ber or well 'I-'I ‘along the exterior side‘of the iñrslt the "top’porti'ons ofthe housing interior. îoraminous body I6. The mixed liquids there» A’Said ‘housing Ill is provided with alliduid mix lupon penetrate ‘said Áfirst 'foraminou‘s ‘body I6, ture intake 22, which Venters the pide thereof, ‘tending -to move 'laterally therethrough "so ‘as ~rto preferably .at a point adjacent to the lower Ípor emerge `from `the inner 'side thereof Vand ‘into ‘an tion'or bottoni 'o‘f said ’housing suitably 'alîlxeìi intermediate -chamber or well f8. 1Upon/gaining within the housing interior, between 'the outer the interior of the foraminous'bod'y ‘|6, ‘the par most "foram'inous ‘body oririterstitial‘mass IB ’and ‘ticles 'of voil suspended >in the mixture ‘are'to a :said >intake 2,2, is a laterally inclinedor angular 30 4considerable 'extent retarded'inmovement‘by'con deiiec‘tor baille 23, which laterally 'dellects ‘the Vtact with the `mesh material ‘olîïsai'd "bodyfandaœ ingoing liquid 'mixture so‘as to .cause .it ‘to ‘flow Kso» slowed in movement Yas ‘to >allow time foi-foil 'in a ¿given direction around and through 'the particles >to gather Jand 'coale'sca "thus ’forming outer chamber ‘or Well I1, whereby to uniformly 'therefrom -enlarged ‘oil èbodies. Owing 'to the distribute‘the same around the exterior of said ' porous -or >interstitial and wick-like ’form'of "the ‘outermost Àfo'rarninous vbody or vinterstitial vmass 'foraminous body I6, ~4the same'exe'r‘oise's a v‘capil "I‘Bfand so asto equalize its hydrostatic pressure -laryeiî‘ect -upon `the 'enlarged oil bodies, ‘whereby and cause "it to uniformly penetrate the latter at the same tend to 'work -upward 'through 'the ‘body all points, by eliminating direct impact of 'the rliquid Vmixture at entering 'velocity "against the LIU I6, and, kassisted by vthe pressure-of cross rl'oiwin'g liquid, tend to eventually escape `outwardly‘there‘portion of said outer'forarninousïbody‘ orV inter îrom intojthe ’adjacent intermediate ’chamber ‘stitialmass (I6 'which is directly opposed ît'o 'the or well 18. 4Owingfto'the‘increased‘mass and'low 'intake '22. ì y ’ergspeciñc gravity >of >the `enlarged yoil bodies, Dependent from 'the top w'allIZ of the'hcusih‘g I0 and axially disposed within thev inner >or'ce'n.- "»‘ which make their way'into the ‘chamber Aor "well '~I‘8, lsaid bodies `tend :to rise v’to the top ‘oi the ‘tra‘l chamber-’or well I9 th’ereof,'is ajwater dis housing interior, 'wherein they'further tend "to charge ‘pipe 2'4, "the llower intake ‘end of Vvtdiich ‘ >accumulate and forma ‘homogeneous‘oil mass A'on is 'disposed ‘at the Dlower ’level ‘of fthe liousifngin top -of `and ‘separated from the 'underlying lmass terior and 'in `adjac'en’tly spacedrelationito V‘the bottom 'Wall I I 'of Vvsaid housing. ÍSuitableÍ-p?ovi ci) of water. This process is repeated 4as the‘liqui'd :mixture flows laterally -from‘the chamber ‘orwell ‘sionyis made, such as ‘the ’union Vlmember 25, Sfor I8 into the next adjacent foraminous >body T6. coupling -the 'upper 'end of said water Adiscl'ia'rge In this connection, ‘it ’will ‘be >understood"th'a’rfal pipe '.24 `to ‘a 'water `delivery conduit ’26, “through though l‘for the purpose ‘of illustration, lbut `two 'which water vmay nbe drawn, by'pump or 'other such‘foraminous bodies ‘I6 are‘shown inîthe 'ao suitable means (not shown)„ for .delivery -to Aa ` place Of use, such e. g. a 1boilerto which ’thesclean water is to serve as feed supply. ' ` `~Mounted onthe exterior' side o‘f'the'ho'using' I il, with its Vrespective ends coupled incommunica tion respectively `with'lipper and l'o'wer levels .of 'the -housing interior, is a Atransparent >liquid level gage or glass 2l, ‘to visibly'indicate the .separated bodie's‘of water and oil, and to .thus show the amount of accumulated separated >oil contained Within’the upper interior 'o‘f ‘the housing dur-ing ' operation ’of lthe apparatus. Means are „provided'for tapping on Ífrom the apparatus the separated >oil accumulated therein. This (means comprises .an oil Vdischarge pipe'ìß, provided with a suitably 'located control valve'f2i9. Said oil discharge pipe is .provided with‘tapping branches 30, vt'l and 32, whichïenter through’the `‘compariying *drawings‘the'number ’of 'sai‘dïorami nous 'bodies 'and intermediate chambers or Wells is ‘subject ’to V’wide variation “and ‘the 'same 'may comprise a -series Ythereof of "any “desired'numbe'n accordingly as may lb`e'd"e`er:r1e<'i expedient iin any given case, or where, ‘bj'y reason of 'the 'character 'of ’a Í'given .liquid v’mixture ’to betreated, fit .may be‘de‘sirable to subject the same 'to a multiple of » "the .successive separation Veffects . produced 'by the ‘foraminous bodies IB 4as described. By reason of the differences in Aspeci'ño„gravity of v4the oil and water constituents of ytl'ie`.liquicl mixture, 'tendency-of -the oil to' rise îthrough .the water to the top thereof and thus Yto I.separate therefrom occurs in all thechambers or wells Il, ‘I8 and "I9, Due however to the expedition of these‘parating effect produced by the foraminous top .Wall I2 Yof the'housin'g 'ID to respectively >com .bodies l5, the ìWater arriving :in `the lowenpart municate with the upper Í'portions io'f-therespec tive chambers or wells I1, `I8 andl I9'. >of -the central orlast `chamber or Well I9, will be substantially (free 4from oil content, and conse 5 2,405,838 ' quently ‘at this point provides a body of clean wa .ter which’may be withdrawn from the interior ofthe apparatusthroughïthe discharge Vpipe 24. As a body of separated oil accumulates> at the top’ of the housing interior, its presence and amount will be visibly indicated by the gage 2l. Whenthe amount of accumulated oil warrants, the same may be tapped off from the several chambers or well I l, I8 and i9 through the oil discharge pipe 28 and its tapping branches 30, 3l and 3,2, by pump suction or other suitable means. . ' After a suitably prolonged period of use it is oiï a separated constituent of said liquid mixture which is of lesser speeilic gravity. 2. Apparatus for separating the constituents of a liquid mixture, said constituents of lwhich are of different specific gravities, comprising a closed housing having mixture intake means entering the side thereof adjacent to its bottom, a series of concentrically spaced, liquid pervious, forami Vnous body masses of substantial thickness ex tending `perpendicularly through the interior of said housing from the bottom to the tcp thereof, whereby to subdivide said housing interior into successive perpendicular chambers, whereby the liquid mixture entering said housing through said desirable to cleanse the interior of the housing and especially the foraminous bodies I6 thereof. 15 intake means may pass inwardly from one cham This may be done by closing the intake 22 and ber laterally through a foraminous body mass into the discharge outlets, leaving the liquid content a succeeding chamber for the purposes described, within the interior of the housing, and thereupon said foraminous' body masses being adapted to discharging into the latter live steam, preferably exercise a capillary effect upon the constituent of under suitable pressure, from the steam ring 33. 20 the liquid mixture which is of lesser speciñc The thus introduced steam will churn the liquid gravity, means in communication with the bot and pass with the same through the foraminous tom portion of the innermost chamber for draw bodies I6 with strong washing and cleansing ing oif a separated constituent of the liquid mix effect. ture which is of greater specific gravity, and Should it be desired to remove the foraminous 25 means in communication with the upper portions bodies I6 for replacement, the top wall l2 of the of all chambers for drawing off a separated con housing may be removed, and said bodies and stituent of said liquid mixture which is of lesser their supporting grilles may thereupon be re moved and replaced. The bottom interior of the speciñc gravity. 3. Apparatus for separating the constituents of housing may be flushed out by removing the 30 a liquid mixture, said constituents of which are of manhole covers 36 to provide ingress and egress different specific gravities, comprising a closed to ñushing ñuid. housing having mixture intake means entering While we have described the apparatus of this the side thereof adjacent to its bottom, a series invention when used as a separator for remov of concentrically spaced, liquid pervious, forami ing oil from boiler feed water, it will be obvious nous body masses of substantial thickness extend that the same may be employed for separating ing perpendicularly through the interior of said treatment of any other kind of liquid mixtures housing from the bottom to the top thereof and wherein the constituents are of diiferent specific adapted to subdivide said housing interior into gravities and are not solubly miscible. successive perpendicular chambers, whereby the We are aware that various changes could be made in the above described constructions, and that widely different embodiments of this inven tion could be made without departing from the scope thereof as defined by the herefollowing claims. It is therefore intended that all matter contained in the foregoing description and shown in the accompanying drawings shall be inter preted as illustrative and not in a limiting sense. We claim: liquid mixture entering said housing through said intake means may pass from one chamber later ally through a foraminous body mass into a suc ceeding chamber for the purposes described, each foraminous body mass comprising superposed layers of knitted metallic mesh adapted to exer cise a capillary effect upon the constituent of the liquid mixture which is of lesser speciiic gravity, laterally spaced grilles bounding opposite sides of each said foraminous body mass to retain the 1. Apparatus for separating the constituents of 50 same in place, means in communication with the a liquid mixture, said constituents of which are bottom portion of the last chamber for drawingV of dilferent speciiic gravities, comprising a closed 01T a separated constituent of the liquid mixture ~ housing having mixture intake means entering which is of greater specific gravity, and means in ‘ the side thereof adjacent to its bottom, a series communication with the upper portions of all of spaced concentric, liquid pervious, foraminous 55 chambers for drawing off a separated constituent body masses of substantial thickness extending of said liquid mixture which is of lesser specific perpendicularly within the housing interior be gravity. tween the top and bottom thereof adapted to sub 4. Apparatus for separating the constituents of divide said housing interior into successive per a liquid mixture, said constituents of which are pendicular chambers, whereby the liquid mixture 60 of different specific gravities, comprising a closed entering said housing through said intake means cylindrical housing having mixture intake means may pass from one chamber laterally through a entering the side thereof adjacent to its bottom, ioraminous body mass into a succeeding chamber a plurality of liquid pervious cylindrical forami for the purposes described, each foraminous body nous bodies of substantial thickness extending mass comprising superposed layers of knitted 65 perpendicularly through the interior of said hous metallic mesh adapted to exercise a capillary ing from bottom to top thereof and concentrically eifect upon the constituent of the liquid mixture spaced relative to each other and to the side Wall which is of lesser speciñc gravity, laterally spaced of said housing, whereby to divide said housing grilles bounding opposite sides of each said interior into successive perpendicular chambers foraminous body mass to retain the same in place, means in communication with the bottom interior of said housing for drawing off a separated con stituent of the liquid mixture which is of greater specific gravity, and means in communication 70 comprising outer, inner and intermediate cham ber space, a deilector bañ‘le extending angularly from the housing side wall so as to be interposed between the intake means and the outer face of the outermost foraminous body, whereby the with the top interior of said housing for drawing 75 liquid mixture entering the housing through said momes T7 intakelmeans ¿may pass #from ith-e :outerehamber space to the inner Lchamber :space îl‘at'erally ¿and sueeessivelyïthrou'gh ¿said fforaminous =lo‘odies and intermediate chamber‘space ¿for the-‘purposes ide >scribed, said foraminous bodies ¿each icnmprising >super-posed ¿layers îof knitted :metallic V„mesh fad'apte'd .to exercise >a .capillary :effect ‘upon Ithe constituent .of Vthe >liquid mixture'whiohisûzif :lesser specific fgr‘a’v'ity, .laterally V“spaced 'grilles 'bounding .opposite ¿sides :of .each :foramin'ous body Lto lretain isïh’e fsameîm place, means I in :communication with the bottom lporti'on :of fsaid :inner fchaniberïspace ~for drawing `oi‘lî :la separated .nonstiizuent-‘of the ‘lmui‘drmixture i‘.vlf'liichzis zofzigreater speciñt: gravity, andimeans-„in communication 'with'lthe upperzpor `tions zof ¿all chamber spaces :for :drawing off a separatedlfconstituent >of :said liquid mixture which is of îlesser speciñmgravity. f5.11n apparatus of :the kind .deñned in claim'A, .including a îsteam ejector `riing mounted Within tlieîb’öttom interior portion-.of said housing. Av'ARCHIBI’LLD LAWSON. CHARLES M. YOUNG.