US1740192A

US1740192A - Heat exchanging device

Info

Publication number: US1740192A
Application number: US325362A
Authority: US
Inventors: Mcneil Charles
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-07-11
Filing date: 1928-12-11
Publication date: 1929-12-17
Anticipated expiration: 1946-12-17

Description

Dec. 17, 1929. c. McNElL 1,740,192

I HEAT nxcnmems DEVICE Fil 1928 2 Sheets-Sheer. l

/NVEN TOR. Chm/21.55 MCNEIL Dec. 17, 1929. c. Mc'NEIL 1,740,192

HEAT EKG/HANGING DEVICE Filed Dee; 11, 1928 2 Sheets-Sheet 2 iN VEN T06? Gmmss fil H- Patented Dec. 17, 1929 PATENT OFFICE CHARLES MCNEIL, OF GLASGOW, SCOTLAND HEAT EXCHANGING DEVICE Application filed December 11, 1928, Serial No. 325,362, and in Great Britain July 11, 1928.

This invention relates to heat-exchanging devices for incorporation, for example, in evaporators and crystallizers of the type including a drum or otherwise shaped containng vessel and a tubular structure rotatable within the vessel.

In the device according to the invention the rotatable structure comprises a main pipe, vhich may be continuous or interrupted, journailed in the vessel and carrying near each end oi? the vessel a hollow spider in the term of tubular arms disposed radially of the main pipe and integral with or detachably mounted on a box or the like carried by, and open to the interior of, said pipe, said arms being interconnected or not by stays at or near the periphery, and banks of preferably straight parallel tubes extending lengthwise of the vessel and interposed between co-related arms of the ggllOllOW spiders, through which banks either heating or cooling fluid is caused to pass, the fluid entering at one end of the main pipe, traversing the box at that end, passing thence through the set of hollow radial arms at that end, along the banks of longitudinal tubes,

hrough the second set of radial arms, through the second box, and hrough the opposed end of the main pipe.

Each element comprising a pair of arms and connecting longitudinal tubes may have independent connections to the main pipe.

A heat-exchanging device according to the invention is illustrated by way of example in the accompanying drawing in which 1 is a central vertical section and Fig. 2 a transverse section on the line 22 of Fig. 1.

Referring to the drawing, 1 denotes a cylindrical drum or vessel within which is rotatable a tubular structure including radially disposed banks of straight parallelly arranged tubes 2 extending lengthwise of the vessel between co-related tubular spider arms 3 constituting headers. The said spider arms 3 radiate from boxes 4, 5 integral with hollow .4 trunnions 6, 7 ournalled in bearings 8, 9 sustained by the end plates 10, 11 and rigidly interconnecte'd by a pipe 12 coaxial with the trunnions 6, 7.

The box 4- constitutes a single distribution 5o chamber communicating with all of the head- Eli) ers 3 radiating therefrom. The box 5 is subdivided by radial partitions 13 into ei ht compartments 14 each communicating with a header 3 and each having an outlet port 15 opening into the hollow trunnion 7.

l6 denotes internal ferrules titted into the inlet ends of the tubes 2.

The construction illustrated is adapted for use with steam as the heating luid to be passed through the tubes 2.

in operation, steam enters the hollow trunnion 6 and passes by way of the box 4 into the headers 3 radiating therefrom, along the banks of tubes 9. into the headers radiating "from. the box 5, into the compartments 14:, and outwardly through the ports 15 into the hollow trunnion 7 The ferrules 16 in the inlet ends of the tubes 2 serve to prevent any condensate in the tubes 2 from passing backwardly into the box 4-. firs the elements attain their highest position the condensate in the tubes 2 flows into the box 5 whence it passes to the hollow trunnion 7 by vay of the ports 15, reflux flow of the condensate being impossible due to the construction of the box 5.

The tubular structure may be rotated in any convenient manner, and the vessel may be subjected to vacuum.

The containing vessel is provided with inlet and outlet openings (not shown).

What I claim is 2- Tn combination with a liquid-containing vessel, coaxial fluid inlet and outletconnections and a structure in communication with said connections and rotatable around the axis of said connections, said structure comprising a box connected to the fluid inlet connection, a box connected to the fluid outlet connection, a set of headers radiating from each box, banks of tubes connecting said sets of headers, internal ferrules at the ends of the tubes adjacent to the first box and partitions subdividing the second box into compartments, one compartment for each header connected 95 to that box.

In testimony whereof I have signed my name to this specification.

CHARLES MoNEIL.