US1737347A - Heat exchanger - Google Patents

Description

R. E. WILSON HEAT EXCHMQGER 'Filedqam 22, 1927 4' snets-sneet' 1 ac/M/ NNN eL ,mi

NOV. 26, 1929. R, E, wlLrsQN 1,737,347

HEAT EXCHANGER VFiled Jan. 22. 1927 4 Sheets-Sheet 2 R. E. WILSON HEAT EXCHANGER New.. 2%? 3.92%

Filed Jan. 22, 1927 4 Smeets-sneuy 4 jUeWZoyf ROBERT E. WILSON, OF CHICAGO, ILLINOISVASSIGNOR-`-TO OF WRITING, INDIANA., A

HEAT EXCGEB Application led January 22,1192?. Serial No. 162,740. l y

This invention relates to improvements in heat exchangers and more-'especially to such yanv exchanger adapted for exchanging, transferring, or conducting heat from none fluid tp another under such conditions-.that ac# cessibility and ease` of cleaning are importhe pressures may be high.

in the treating of oils, it freto heat one oil and cool Obviously, this tant, and where For example, quently is necessary another at the Ysame time.

' can be done with the greatest efficiency by 40` can be opened transferring the heat from. the-oil to be cooled A to the one to be hea/ted. One of'theobjects of my invention is to accomplish this transfer of heat with the slightest loss possible.

t Although I show and describe la device especially adapted for the use oi foil both circulatory systems, it is to be understood. that any other fluids may be used, without detractin'g from the sp'uit'of my invention.

f In devices of this character, it is frequently necessary or desirable to clean the circulatory systems of the tw`o iiuids. For example, in the coolin or heating of either of the uids there is o ten deposited a film or, coating of substance that eventually interferes with the conduction ofl heatv unless the same is .removed. If the circulatory systems are tubular and composed of straight lengths of tubes, the ends offcwhich can be opened, the cleaning is rather easily accomplished, In many heat exchangers heretofore used, however,f4 al- 'though one ofgsuch systems was tubular the other in most cases was not. One of the features of my invention is to make both systems tubular. That is,"the systems carrying the foil to be cooled and the oil to' be heated are both tubular. 'Each system is also` com. posed of straight lengths, the ends of which in order'to permit the ready insertion and operation of well known brushes and cleaning tools.

Another feature of'my invention, besides 'providing two tubular circulatory systems,

,45 is the provision of a continuous or solid metal conductor between such systemsf lt is well known that metal is a very good conductor of heat; and I have produced great jeiiciency infmy improved device by usine solid or continuous metal as a conductor between the two j with my specification.

CORPORATION OF INDIANA `systems, without the interposition of any otherf medium; .This also makes it possible to operate at high pressures.

Other features and advantages of my invention will appear more fully. as I'proceed In that form of device embodying the features of my invention shown in the accompanying drawin s, Fig. 1 is a top plan view `of. my improve heat exchanger, Fig. L2 is a similar vlewin side elevation, Fig; 3 is a viewl partlyv 1n end elevation and partly in section, Fig. t is a view taken as indicated by the line 4.-4 of Fig. 3, Fig. 5 is a viewv similar to Fig. 3 showing a modified form, Fi-g.l 6 is a view taken/ as indicated by the line 6-f6 of Fig. 5, Fig. 7 is a view taken as indicated by the line 7--7 of afragmentary view similar STANDARD voIL COMPANY,

Figarigjs to Figs. 3 andV 5, showing a lmodified form, andFig. l9 is 70 a view taken as indicatedby the line 9 of -r s shown in the accompanying drawings, i

10 indicates a solid billet, of iron, steel, or other suitable metal which contains the two circulatory systems. Each of the circulatory systems comprlses a plurality lof lstraight passes or runs of tubular holes drilled or otherwise formed through the billet. Means are .provided for connecting the ends of these straight passes in order to4 form two com plete circulatory systems one lfor the cold l oil and one for the hot.

rhe straight passes i are preferably connected so that each pass of -y hot oil 1s close to a pass of cold/oil, and preferably the flows in the two systemsl are-approximately counter-current. It willbefseen that since the `passes in each lsystem are straightand have their ends open,l these passes or tubular 'holes ma beeasily and simply cleaned when the en nconnections are removed. l Consequently, the means for con'- necting thepasses at the ends arefmade ref movableto permit suda cleaning.

1n suchconstruction,the metal thus' \em Instead of using a solid billet ofiron, steel or other metal, the heat exchanger may metal around them.I

ployed, for eirample lead, might bev-liquid at the operating temperature.

The ends of 'the passes-or tubes may be 4 fconnected in a variety of ways in order to y make the two circulatory systems. For ex# ample,r as shown in Figs. 1 to 4 inclusive, I

. have indicatedthe two circulatory systems in general'by A and B. For example, A may indicate the inlet forthe hot oil and A the outlet, and Bthe inlet for the cold oil and .B itsloutlet. It will be seen that throughout the billet, passes ofthe A and B systems vare adjacent.

of the tubular passes ory runs are connected by millingout a portion ofthe end *of the billet as indicated by 11 (see Fig. 4) to connect the ends of two adjacent' tubes, andthe cavity thus milled out is closed by a rectangular shaped plate 12 suitably fastened in place in [any manner, as .by means of the machine screws 13.- A gasket'14 is preferably provided in order to prevent leakage. In cases where two of the'connections must cross over 2.5

using a plate 12, a U-pipe 15 may -be proalternate straight As `shown in Figs. 1 to 4 inclusive, theends .as indicated by 15,' instead of millin out and What I' claim as new, and desire to secure by Letters Patent, is 'M f In a device of the character described, a

solidrmetal billet provided with two sets of i videdas shown,which'may be suitablyjfastened in place by means of the machine screws v16. Such a U-pipe 15 will bridge over the i o' nect theje'nds ofthe tubes.

example, (see Fig. 6) the ends fof two tubes asindicated by 17, 17 may be connected by providing the two nipples 18, 18threaded into the ends thereof. Each of 18 carries a collar `19- threadedyonthe end, and a U-tube 20 is providedl to connect the' ends of the nip les, the same being held in' position by the golts 21 engaging the collars 19. Gaskets 2 2 leaka e.

AInl igs. 8 and 9 Ihave shown another here shown, diagonal holes 23 are drilled Vacross .the ends of the billet intersecting the l'on itudinal holes a short distancefrom the surace. The alternate spaces betweenv the ends of the longitudinal holes are plugged with solid bars 24, welded or otherwise suitably :fastened place. v.The ends of both l diagonal and longitudinal vkholesa'reclosed by screw plugs25.`

While I have shown Aand described certain-4 pended claim, claim' all novelty inherent in'my invention underlying plate 12 and thus serve to conthe nipples ,method of connecting theends of tubes. As

embodiments of my invention, it is to be unf "de'rsto'od that it is" capab1e: of 'manly modilj icatioi 1s..'v Changesftherefore, in the coniA f "Lstructin *and arrangement' may made withofut departing from the spirit and scope of therinvention Vas f disclos'ed in the .ap-

in which Vit lis my intention to asf In Figs. 5,' 6 and 7 I have shown another `methodof connecting the ends of tubes. For

Cio'

.4 are p rovlded to 'prevent

Images