US1995341A - Process and device for supplying heated humidified air - Google Patents

Description

March 26, 1935. R. W. DE LANCEY ET AL 1,995,341

PROCESS AND DEVICE FOR SUPPLYING HEATED HUMIDIFIED AIR Filed Aug. 24, 1933 2 Sheets-Sheet 1 57771157)? AVTO/WVEYE.

March 26, 1935.

PROCESS AND DEVICE FOR SUPPLYING HEATED HUMIDIFIED AIR R. W. DE LANCEY ET AL Filed Aug. 24, 1955 2 Sheets-Sheet 2 Patented Mar. 26, 1935 s I I i UNITED STATES sersarorsics Ralph W. De Lancey and James H. ltothenberge'r, La Crosse, Wis, assignors to Par Appliances, Ina, La Grosse, Wis, a corporation of Min:

1 Application August 24, 1933; Serial No. 686,572

' 3 Claims. c1.122 155) This invention relates to processes and devices centric with the outlet 8. The conduit 10 is confor supplying heated humidified air. I nected to an inlet 13 at the forward side of the It is the general object of the invention to drum near its upper end, and this conduit serves provide a novel and improved humidifying procto support the forward portionof the drum with- 5 ess whereby humidified air at a relativelyhigh in, the casing 6. The drum 11 isequipped with 5 temperature may be supplied to a space to be an outlet 14 at its rear side adjacentits upper both humidified and heated. end; preferably "in diametrically opposed rela- Another object is to'provide a novel and im- 'tion from the inlet- 13. The outlet 14 runs proved device of cheap and simple construction, through an opening inthe rear of the casing 6 10 which can be effectively utilized for supplying and, in practice this outlet will be connected up 10 out the various views, and, in which,

heated and humidified air. to a smoke flue or chimney (not illustrated).

A further object is to provide a novel'and 'im- Theoutlet 14 supports therear part of the drum proved steam boiler, which can be utilized with 11 from the casing 6. The inner and outer walls the utmost eii'iciency to generate steam. of the drum are spaced from each other to pro- 15 The objects and advantages of the invention videa heatin h m rl5 d the pr of 15 will more fully appear from the following decombustion are bafiled by means of bafile plates scription, made in connection with the accom- 16 within the chamber 15, so that the products of panying drawings, wherein like reference charcombustion will have a long travel between the acters refer to the same or similar parts throughinlet 13 and the outlet 14 to give lp a great p tion of their heat to the air surrounding the drum 11 Fig. 1 is a view in front elevation of a device a d to t e air Within the air pas The embodying the-invention; bafiles 16 preferably are interposed about mid- Fig. 2 is a view taken partly in side elevation Way between the front and rear portions of the and partly in vertical longitudinal section drum so as to extend between the outer and inthrough the device, certain of the parts being not walls of the drum and these bafiies run from 2; broken away to more clearly show the constructhe t l of the drum downwardly t points p c tion thereof; i upwardly somewhat from the bottom of the Fig. 3 is a view partly in side elevation and drum. With this arrangement, it 'will be seen partly in vertical section of the inner shell of that e pr u s of combustion entering the the boiler; drum through the inlet 13 will be divided to move 30 Fig. 4 is a horizontal section taken on the line arcuately thr u e heating Chamber fi 44 of Fig. 3, as indicated by the arrows; and downwardly below the baffles 16 and thence up- Fig. -5 is a horizontal section taken onthe' line 'wardly to the outlet 14. 5-5 of Fig. 3, as indicated by th arrow Connected to the steam space at the upper end 05 In accordance with the invention, there is of the boiler A is a steam p pe 17 which runs '3' provided a casing 6 preferably of rectangular fi st up y d then y to Connect shape in cross section and having preferably at with a steam distributing head 18 of substantialits'rear near its'lower end a cold air inlet '7. At 1y ring-Shape. This head is preferably l eate l the top of the casing 6 preferably spaced someim e at y a ve the passage 12 in the drum 0 what forwardly from the rear'side of the casing and below the outlet 8 and the head is provided there is provided a warm air outlet 8 commuwith a plurality of pe r 1 r h nicating with an air conduit 9 adapted to convey which the steam running t t e e d y e heated, moistened air to the room or chamber auSt up ly into the eiriwithin the casing tobe heated and humidified. Mounted within The boiler A is best illustratedin Figs. 2, 3, 4

the casing 6 and closing the lower-forward pcrand 5. The boiler includes a lower section 19 45 tion of the casing is a water boiler which may be having a front opening closed by a removable designated as an entirety by the letter A. This plate 20 through an opening in which an oil boiler is of special construction hereinafter more burner (not illustrated) may be inserted within fully described. From the upper central porthe section. The upper pa t of he e O tion of the boiler A a conduit 10 for conveying 19 is double walled to provide alower' water cham 50 off the products of'combustion after they have ber 21, th inner W f W h forms the fi p passed through the boiler, runs to an annular of the boiler. ov ly g the top of the lower drum 11 disposed within the casing 6. This drum tion 19 and extending well above the same are 11 is preferably of cylindrical shape as shown inner end outer shell sections or shells 22 and 23 r to provide a central vertical air passage 12 conrespectively, 'Whioh' o h a chamber 24 6i flange and in the upper wall of the lower sec-' tion 19 afford communication between the chamber 21 and the chamber 24. The shell 23 is'of general cylindrical shape and it has an inturned flange at its upper. end connected to a flange 29 of the inner shell 22. The inner shell 22. is of quite peculiar shape and it may be consideredto comprise a lower part 30 of generally regular polygonal shape having vertical outer walls connected together by channel-like ribs 31. These ribs 31 project much farther inwardly at their lower ends than at their upper ends and the inner edges of the ribs extend from their lower ends diagonally upwardly and outwardly to connect with a circular flange 32 at the top of the lower part of the inner shell. In the particular embodiment shown, sevenribs are provided although it will be understood that any desired'number of ribs may be used if desired The inner shell 22 may be also considered to include an upper part 33 which is also of regular polygonal shape in genera1 exterior contour but of considerably smaller size than the lower part 30. The upper part 33 joins the inner edge of the flange 32 and the exterior walls of the upper part are vertical. The exterior walls are connectedby means of a plurality of inwardly extending ribs 34 of general channel'shape in cross section. These ribs3i join the inner edge of the flange 32 and run diagonally upwardly and inwardly as best shown in Fig. 3, to connect at their upper ends with the flange 29. It should behere noted that the ribs 31 of the lower part 30 do not aline with the ribs 34 of the upper part 33. In other words, the ribs 34-. are staggered relative to the ribs 31. The inner surfaces of the inner shell 22 may be considered to define a space for the travel of the products of combustion which is similar to that formed by two ribbed truncated pyramids having their larger bases in abutment.

The flange 29 is provided with an upstanding ring 35 which connects with the conduit 10.

It will be seen that the boiler A is provided through the medium of the inner shell 22 with an exceedingly large surface area in direct contact withth'e heated products of combustion, Accordingly, the water within the chamber 24 will be very quickly heated to generate steam in the upper part of the chamber. To supply water to the chamber 24and to maintain the water in the chamber at a constant level, there is provided a water inlet conduit 36 provided with a chamber 37 having mounted therein a float valve 38 of standard construction and not illustrated in detail. I I

When the deviceis set in operation} the products of combustion from the boiler after passing through the same to heat the water in the chamber 24 and generate steam therein, will run through the conduit 10 into the drum 11 to heat the air surrounding the drum and the air in the air passage 12. Cool air'will be admitted to the casing 6 through the inlet '7 and will pass upwardly around the drum 11 and through the air passage 12 to a point over the drum. The steam generated in the chamber 24 will pass through the steam conduit 17 into the steam head 18 from whence it will be discharged through the apertures 18a. This steam will mix with the heated air above the drum 11 to cause this air to be thoroughly moistened. Due to the fact that the air is heated before the steam is mixed with the same, the air more readily absorbs the moisture from the steam to prevent the formation of fog. The heated and moistened air will then pass through the outlet 8 to be conveyed by the conduit 9 to the room or chamber to be'heated and humidified;

It will be seen that the one unit will supply both heated and humidified air. Practically all the heat is utilized to heat the air within the casing 6 and the device is accordingly mostefflcient in tially cylindrical shape and having an upper wall joining the upper edge of the inner shell, said inner shell being ribbed from bottom to top to define an inner open space produced by applying two truncated ribbed pyramids with their larger bases in abutment.- I i 2. A water boiler comprising a combustion chamber and an outer andan inner shell above said combustion chamber, said outer shell being substantially cylindrical inshape and having an upper end joining the upper edge of the inner shell, said inner shell having a lower substantially cylindrical portion-and anupper substantially cylindricalportion of smaller size than the lower portion, said lower portionhaving a plurality of inwardly projectingribs formed therein; said ribs projecting diagonally upwardly and outwardly from their lower ends, said upper portion also having a plurality of ribs formed therein, said ribs projecting upwardly and inwardlyfrom their lower ends. 7 V

3. The structure defined in claim 2, the ribs of said upper portionbeing circumferentially stag geredrelative to the ribs of said lower portion.

RALPH W. DE LnNonY. JAMES H. ROTHENBERGER.

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