Патент USA US2110430код для вставки
March 8; 1938. ‘ 5, v_ SWANSON 2,110,430 DISTRIBUTOR Filed March 5, 1937 55 ' 4 2,110,430 hiéiiied Moi. 8,. .1938 t S PATENTPOIEFICE ' " .v >r ‘STATE’ 2.110.430 Sven V. Swanson, Forest Park. 111., asaignor to Be- , frigeration Appliances, Inc., Chicago, 111., a‘ col‘: poration of Illinois . ‘ Application March5, 1as'I,.-sorlsl-No.¢ 129,244 "12 claims‘ ' I (or. cz-izeij “ " tributor constructed in accordance with my in- w My inventionv relates to cooling units of- re vention; frigeratingw -'s'ysterns wherein liquid refrigerant " . I i. . .' ' Fig. 2 is a cross sectional‘ view taken on the ' is‘supplied: to ‘a duct or coil of the'cooling unit -* to produce the cooling effect,'and has reference line 2-2 of Fig. 1; 5 more particularly to ‘facilities for ‘supplying equal nurlisiber of superposed banks of. refrigerating amountsof refrigerant'to each of-several banks a of coils. ' 1' a I .. a ‘ ‘ ‘ ' Fig.3 isan end view‘ of a coil‘ unit with a 's' coi;'..~' ‘ ' ' I, Fig. 4 is a‘ view taken on the line l-J?of _ , In refrigerating systems of the type ordinarily used a refrigerating medium is employed which, Fig. 3 showing the take-off connections from the ‘ 19 after compression. is introduced in liquid form ‘Fig. 5 is a view taken on the line 5-4 of Fig. 3 > ‘ coiluniti: through an expansion or control valve into the . t. m ._ 10 coils of a'lcooling-‘unit wherein the refrigerant sho'wingsthe expansion valve and ‘the connec tions' therefrom to: thecoil'. unit for supplying is evaporated and converted ‘into. gas, thereby the refrigerant thereto; and " '15- coils by the heat absorption which occurs in nections of Fig: 4 to insure uniform. suction at all the tube outlets.~ ment, wherein normaloperation requiresl'a ‘high rate of heat transfer, refrigerant is prefer-r valve for each bank] of ,coils it is desirable to ' . supported by end ‘plates ll‘ with fins or plates 25 IS on said pipesbetween the end, plates It in accordance with the usual practice. Each bank _ in the supply of'refrigerant’ to each bank of ' . tion, connected in series by return bends l3' and I . 25 tributor which will properly proportion or- equal " ' coilspeachbank of which comprises four later ally spaced parallel pipes ii, at the same eleva-l ' provide a "single expansion valve with‘ a. dis " " merai l0 indicatesva multiple bank cooling unit 20 ’ as a whole. having four superposed banks ll of - necessity of-employing a separate expansion ’ - Referring to ‘the drawing the reference .nu 20 ably introduced separately into a number of ‘par allel banks of coils and in order to avoid the ‘" . may be employed inplace of the take-oi!» con- ‘ the conversionof the liquid into ‘gas. ‘In some cases. as for example in air conditioning equip coils. . Fig. 6 is a sectional ‘view-of a header which 16 loweringthe temperature of -> the cooling unit or of coils has an intake end 16 to which refriger > ‘ Howevenfas somevevaporation begins to take place as the ‘refrigerant is discharged from the ant is supplied and an outlet end I‘! :connected . with a. compressor (not, shown). which with- 30 ” expansion‘ or control :valve, the refrigerant be draws’ the refrigerant gas. from the coils and ' after compressing‘ and condensing same into ‘liq-_ uid form‘ returns. the liquid refrigerant through the pipe l8 to the expansion valve l9 from which comes'a somewhat turbulent mixture of liquid and gas which‘ does not distribute uniformly with ordinary ‘distribution facilities, and it is it is supplied to the intake ends 16 of the coils. V35 1‘ ’ necessary to‘ provide special distribution facilities To insure equalization of the suction effect of the compressor-on eachbank ll of the coils, a manifold-arrangement as shown in Fig. 4, may a which ‘will properly proportion or equalize the supply or distribution of the refrigerant to the various banksvof coils of the cooling unit. It is therefore, an object of my invention to . be employed with two manifold branches 20 . leading respectively‘from theoutlet ends I] of 40 provide-refrigerant distribution facilities for‘ re the two upper banks ,ll ~ and from the outlet > ends' I‘! of the‘ two lowerrbanks ii and each. a single expansion valve to each of'several banks branch 20 is centrally connected: to the opposite of refrigeratingv coils. manifold which‘ln turn is centrally connected 45 to the :pipe 22 which: 'lealds‘to the compressor each sothat bankthe of pipe coils to distancewofthe the compressoroutlet is the same. ,ll [of Instead of the manifold arrangement'of. Fig; 4 " ‘ v ’ ends respectively of the’main branch 1L0! the . ; i Another object of my invention is to provide a refrigerant distributor wherein excess gas is )removed from the refrigerant before distribution. "A further object of my invention is to provide a connection of “the. coil outlets with the return 50 pipe. to the compressor whereby uniform suction at all the outlets is assured, these and other objects being accomplished as hereinafter de a header." as‘ shown in Fig. 6‘ may be provided, 50 3 said ‘header being hermetically closed at both ‘ends in any convenient manner and‘ provided with a central partition,“ extending from end scribed, reference beinghad to the accompany- ' to end thereof. At .one side of the partition 4| ing drawing, in which: as - , _ . , Fig. 1 is a vertical sectional view of a dis g the header has the tubes l2 connected thereto 65 ‘9,110,430 ' aim-‘at ‘the-other side of the“ partition the pioel It leads centrally from" the header,‘ and the said, by a valve II and connected'by thepipe'll 1 partition has the Openings" therethrough which the pipe 2,: which‘ leads from the cooling unit II are'g‘equally ‘spaced from" the outlet 2‘! ‘and the to the compressor. Said pipe 22 also hasileomed thereto the. ‘ tichulbl‘l of thefelpan- » "upper opening it is sion valve whereby the supply or refrigerant iur- g,V equally spaced the .nishedbytheexpansion two upper. pipes‘ l2 while'the lowerbetween opening," vis ‘equally spaced‘ between the two ‘lower pipes I! so that the path from all-jot thelpipes I! to ‘the'outlet? . 10 ispl _‘ Separate pipesfld‘q/preterablyvoi' lliscontrolled. . e , . . . V > ‘ ,‘ . While I have'shown and described autism‘ _ length, .y . 7 v \ 1 Y are connected to the ril?wiitlve inlet ends I. of coils and‘ supply‘ refrigerant there ,» mil-om the distributor-Ilwhich in turn ‘refrigerant siong'valve ll; ~ ‘ the pipers from the expan-r 5;; .This distributorgwhichih :shown- in ‘in ' csl'igs; 1 and 2 comprises ‘a cup-like housing" with a cap or cover II ‘ 31 claim as my'invention: ' Y 1.Inadistributorottheclassdescribed.tho ll‘ 'com'hinatlonoiahousing'withachainberthere- . I; lnif'said'housingbcing formed to. provide at the thereto in a hermetical-l , over?owsinto V ingireservoir botto'sn'ot thewhich c a cavitywi'th‘a said cavitpanr ‘ '24 ‘from theyalveis .h Je ' inlet at the top otithe housing and Icading‘into _cured centrally tojthe cap or cover 20 as shown; ‘ori?ce Y communicates‘with the upper-vendor a‘ooni said chamber thereofvan “ cal recess‘ II ‘in thel under side 01' said cap‘or"?which discharges into1the,_.a!0resaid . . , I! settled manner‘aslndicated at ,?giandlthe'piva V ‘ _ .Under Illand cen trally injthe housing 28 is anupstandlng annular ‘2.1 ‘which In a. distributor» I the reservoir 20 forming in e?'ect an annular.‘ reservoir ' into , w surrounding; ‘an from they bottom @oi’ . . .d ‘the ,clmildmrll t . _ the ‘ combination of a housingylth ll chamber . ‘ :which 'saldinner cupv the pipes ll‘ lead to ‘their in,said housing: being formed to provide “respectivetb'anks' olticoilsgssaidv pipes beingher- > ~ ‘metically secured to‘ the 'bottoqm'oi-the-lhousing bottom of the chamber a cavity with ing. reservoir which over?ows intollaid cavlthm. ” ‘ "'?ijat inner?cup equalportion intervals thereof around i'ormed‘byj the bottom the of ?ange ‘inlet at‘ the top-'otthe housinglnd ‘20. Thebottoin wall of 'saidinner cup is'cene trally'torined-with'a ‘threaded recess II in which unilorinly to‘divert'in?ow between saidchaniberthereot, said around inlet trornssaidinletfintoithe-rslervnir and thelcavityland‘saidlhoming a‘spreader the. cavity-and in the is engaged the 'lower.~-threaded¥end1oi the stem , it which‘ is provided atithefluppenendi with a having .a plurality. otoutletsjatthez‘hottoni uni “ conicalaoi a somewhat ?atter‘ conie cal i'orm coni " 28 or ‘the (cap j formly; arrang i :trom‘ or cover llandwhich prolectsiinto said recess "to ‘form between‘the recas '20- andispreader , I 32‘ acontractediannular refrigerant enterlngthe passageway" distributor. is‘ bydirectwhich ed" annularlyr'downward into the reser voi'ribetween'the ?ange .yllhand the ‘outer; wall of housing "II honrwhichvrcaervoirithe refrig the Sinner’ cup 9 the ?ange II; It‘ is‘ to'be 5notedglthat=the discharge . eranti over?ows into vf'roi'iigthe annular; v the wardlylbeyond concentrically top of the housing‘andleadingintoctbsjtop the aforesaid‘ cavity; an‘ timlniniizesuadisturhancetlnd at'ythe apex!’ a promotes quicscenceiot the liquid refrigerant‘ in ‘1 ot the said conical conical spreader nroiwtlnalntqlmdrcqwll? ‘' reservoir-Lao asto'ilnsure uniformity ‘ '. ~ otlfout?owjover-fthew?ange 'lllninto the central cess and forming therewith. an annular‘ ‘cup Jm- ‘basin from ‘ virhlchfth'es-‘ontletv pipes “lead. ' Preferably the innergsurtacepof the lwalltilis. ~' directed into the, reservoir, and saidho'iuslng'h’av'r ing arranged wayathrough plurality ‘around which or when» the thein?owirom'said'dnlet'is' center thevbottom' "ol‘ithe cavity ' sloped at the-‘bottom and; the ‘stem'provided with ' ‘ " , Va ?ared‘shoulder. :abovethe bottom ot'the inner. ‘ ' - ‘g cup as shown to-directcthe over?ow from the an- ‘ nular reservoir to Outlets 'thelzbottom of xiobviouslyfthe distributor 2t set‘in a the we > . ‘combination leading. iplnva'distributorvoi" ‘fromofthe_bottoln ahousingwith, otjsaid u-cljassy a cavity described, is}; A‘ V ' ‘ ~ in and an inlet leading‘ into' the-‘top thereoniaid substantially'level position' so thatthe over?ow I housins- beills. ‘from the annularreservoirinto‘theinner: cupjis’ 7 . k , ‘provide'at p a i t ‘unilorln around »they?ange,i “Land when so’ set’ 4 over?ows into said cavity which ' _ 1* PIDJecting' up; “ 7 II “is accordingly-1‘ equal» and '‘ ~ ‘at wardly. its upper-end i'rolnthe center a de?ector‘in'thepath of cavlty‘and voi';,ths v:1 ‘ fthesupply‘ot :rei'rigerantji'to each of the pipes ‘ in?ow inlet and "?ow-isdlrected into the _ v ~ Preferably.‘ .a 1 clean‘ is than’ nor-ii the ?m-; housing having a plurality of commit the ‘bot ‘ terior ‘of ‘the ‘distributor 28; at thelrtop-iof‘thej :char‘nber therein to remove~ercess gas‘trom the ' refrigerant beforeudistribution- thereot-.:to the pipes“ and forums purpose‘the cap or cover 20 ‘ 76 is providedwith albleeder'passage l4 controlled leading ’ ‘ 'cijmm the bottom‘ 0!. reservoir over?ows. cavity into ' 5.-In ‘a refrigeratinrsystem, the‘ ' of a cooling unit comprisinga plurality of rate-‘coils, each having a separate. outlet connected 1‘ ‘v '> 3 2,110,480 to a common discharge pipe, and means for sep arately supplying refrigerant to each coil from a common source, said means including a distribu tor comprising a housing with basins therein through which refrigerant supplied from the said common source ?ows consecutively, said basins being arranged to over?ow one into another, and the last basin of the series having separate re frigerant conductors leading therefrom tov the 10 respective coils. 6. In a refrigerating system, the combination of a cooling unit comprising a plurality of sepa rate coils each having a separate outlet connected to a common discharge pipe, and means for sepa 15 rately supplying refrigerant to each coil from a common source, said means including a dis tributor tov which refrigerant is supplied from said source and having separate refrigerant con ductors leading therefrom to the respective coils, 20 said distributor comprising a housing with a chamber therein divided at the bottom into two basins one of which said basins has the aforesaid conductors leading therefrom and’ the other of which said basins receives refrigerant from said 25 common source and. ‘overflows into the basin from which said conductors lead. W. In a refrigerating system, the combination of a cooling unit comprising a plurality of coils, each having a separate inlet connected through 30 a distributor with a common source of refrig erant supply, and each of said separate coils hav flows into the basin, a plurality of outlets lead ing from said basin, and an inlet leading into the chamber and discharging into the reservoir against a side wall of the reservoir remote from the outlets. ' ' ‘ 9. A distributor of the class described, com prising a housing providing a chamber having a plurality of outlets equidistant from the sur rounding wall of the chamber, and inlet means having an annular discharge ori?ce positioned to 10 discharge against and uniformly‘along said sur rounding wall. 10. In a distributor of the class described, the combination of a housing having a' chamber therein, a plurality of outlets leading from the 15 bottom of the chamber, an intake leading into the chamber, and spreader means for directing‘ and distributing the discharge from the intake in an annular stream surrounding the outlets at a substantially uniform distance from all the out lets. 11. The method of equalizing the distribution of a liquid refrigerant from an expansion valve ' to the separate coils of a cooling unit, said method comprising simultaneously discharging the ire 25 frigerant in a thin sheet from the expansion valve and so collecting the same as to form a quiet pool, ‘directing over?ow from said pool in a‘ thin sheet over an edge portion thereof remote from the place where the refrigerant is discharged into 30 the pool. and conducting equal amounts of the over?ow of refrigerant separately to the respec ing a separate outlet communicating with a com tive coils of the cooling unit. mon discharge pipe, and connecting means inter » 12. In a distributor of the class described, the posed between the latter pipe and the coil outlets 35 and comprising a header closed at the ends‘and combination of a housing having a chamber having a central partition extending from end to ‘ therein, a plurality of outlets leading from the ing therefrom at the other side of the partition at an equal distance from the two spaced openings bottom of the chamber, an intake in the top of the chamber and directed towards the bottom of the chamber, and conical spreader means within the chamber and located between the intake and the outlets and disposed for directing and dis tributing the ‘discharge from the intake in an through the partition and each of said openings being equally distant from two coil outlets. sutlg‘stantially uniform distance from all the out end thereof andvprovided with two spaced open ings therethrough, said header having the outlets of the coils connected therewith at one side of 40 the partition and the common discharge pipe lead 45 8. In a distributor of the class described, the combination of a housing having therein a cham ber with a basin and with a reservoir that over 20 ' " annular stream surrounding the outlets at a le SVEN V. BWANSON.