US1672651A - Trouble light - Google Patents

Description

Patented June 5, 1928.

UNITED. STATES PATENT OFFICE.

WILLIAM LONSDALE, OF ROSELLE PARK, NEW J ERSEY,-ASSIGN OR, BY KESNE ASSIGN- MENTS, TO FOSTER WHEELER CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

HEAT EXCHANGER.

This invention relates to an improvement in heat exchangers such for example as are commonly employed in power plants, as surface condensers. feed water heaters. or the like, and as auxiliaries in refining petroleum in the oil industry. In these and similar types of heat exchangers, it is customary to employ a shell containing a plurality of tubes. with means for passing one medium to and from the space within the shell and another medium to and from the tubes causing the same to flow through the tubes. In many uses to whiclrthese heat exchangers are adapted it is necessary to employ baflles preferably placed transversely within the shell so as to cause the medium passing through the shell and around the tubes to follow a sinuous or tortuous path to effect a maximum transfer of the heat from one to the other of the mediums passing through the apparatus. In some instances due to the pressure under which the medium passing through the space in the shell is forced through the same there is considerable leakage between the passes through which the medium is causedto flow, obviously, re-- ducing the efiiciency of the apparatus to a material extent. It will therefore, be readily appreciated that to provide an efficient apparatus itis necessary to provide a rela tively tight joint around the battles in order to prevent this leakage or the short circuiting of the medium which flows through the space inthe shell.

The object of the present invention is to provide a yielding or resilient packing for the baflies of aheat exchanger of the type to which reference has been made, and to this end in carrying out the invention the apparatus is fitted with slotted tubes adapted to receive the edge portions of a bafile and to resiliently engage the same so as to make a joint sufficiently tight to obviate the leakage or short circuiting of the medium pass- 1 ing through the shell, thereby causing each pass for the medium irrespective of the number of passes to be relatively tight by which the niedium is maintained in its proper course and the efliciency"of the apparatus thereby correspondingly increased. In carrying out the invention the resilient joints for the battles are so constructed and applied as to make it possible to remove the Application filed m 27, 1927. Serial No. 208,675.

bafiies together with the tubes, for the purposes of inspection, repairs, and the like.

In the drawing in which theinvention is illustrated, Figure 1 is a longitudinal section and partial elevation of a heat exchanger.

Fig. 2 is a section on line 2--2, Fig. 1 on Fig. 6 is a view similar to Fig. 5 showing still another form of the packing.

Fig. 7 is a. transverse section illustrating a. form of circular packing.

Fig. 8 is a partial longitudinal section on line 88, Fig. 7.

Fig. 9 is a partial side elevation illustrating the form of circular packing shown in Figures 7 and 8.

Fig. 10 is a plan of the inner side of a sec tiogli of tubular packing as shown in Fig. 9, an

Fig. 11 is a section showing another form of the invention. In the drawing the shell of a heat exchanger .is designated at 10. This is preferably made of steel or other similar material and will stand the necessary pressure, and also as illustrated, is preferably cylindrical. Adjacent one-end the shell is provided with a nozzle 11 as an inlet connection for a medium to or from which heat is to be imparted or extracted, and in an oppositely disposed position the shell is provided with a nozzle 12 forming a discharge connection for this medium. At the end adjacent the nozzles the shell is flanged as indicated at 13. At this end of the shell there is a tube plate 14, a box 15 having inlet and outlet nozzle connections 16 and 17 for another medium to or from whichheatis to be imparted or extracted, together with a cover or bonnet 18. The shell, the tube plate, and the box and the bonnet are connected to each other in anysuitable manner well known in the art, and interiorly the box, as illustrated, is

' provided with a transverse partition wall 19. At the opposite end of the shell the same is flanged and provided with a floating head or tube plate 20, and suitably secured i aaented June 5, 1928. L Y UE EETED STATES; PATENT OFFICE,

LOUIS LUDWIG, OF BROOKLYN, NEW YORK.

, TROUBLE LIGHT.

Application filed June 21, 1927. Serial No. 200,360.

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