US1820425A - Water heater - Google Patents

Description

w. BADEN Aug. 25, 1931.

WATER HEATER 7 Filed March 1 1928 4 Sheets-Sheet 1 mes-5:

Aug. 25, 1931; w. BADEN WATER HEATER File'i i'aich i 1928 4 Sheets-Sheet 2 Aug. 25,1931. w; BADEN 1,820,42;

' WATER HEATER v Filed March 16. 1928 I 4 Sheets-Sheet s m Patentecl' Aug. 25,1931

UNITED STA ES;

I f 1,820,425 I PATENT ICEJ e WILLIAM .BAnEN. or CHICAGO, ILLINOISQ WATER HEATER I Application filed March is, 1928. Serial No. 262,119.

This invention relates in general to heaters and more particularly to water heaters which are so contructed and" assembled that the water is heated ata minimum expense.

One object of this invention is the production of a heater which receives its heating medium, either water or steam, from an ad jacent boiler, whereby it willbe heated with- M out the necessity of employing additional e heating means other than the adj acent boiler.-

Another object of this invention is the production of a heater, including a number of heating tubes communicating with recessed caps to permit ofan uninterruptedcirculation of the water to be used as it is heated. A still further object of this invention is the production of a heater'in which the several parts are readily accessible and remov able, thereby permitting the heater'tobe'l thoroughly cleaned of sediment or "lime de-- posits whenever desiredor allowing faultyparts to be easily removed and perfect parts to be substituted. I

With the foregoing and'other objects in View, attention is directed to the accompanying drawings, wherein like reference numerals indicate like partsin the several figures,"

wherein e I a Fig. l is a diagrammatic view of awater heating system, showing the water heater in operation in/conjunction with a boiler and a storage tank; v l

Fig. 2 is a vertical sectional View through the water heater, taken on the line 2-2 of Fig. 1, looking in the direction of thearrows; Fig. Sis a vertical sectional View of the waterheater, taken on the line 33 of Fig. 1, lookingin the direction of the arrows;

Fig. 4: is another vertical sectional view of Q the water heater, taken on the line 44 of Fig. 1, looking in the direction of thearrows Fig. .5 is still another vertical sectional View of the water heater, taken on the line 55 of Fig. 1, looking-in the direction of the arrows; U

Fig. 6 is a longitudinal sectional view' through the assembled water heater looking in thedirection of the arrows on line 0fFig.2;"

7 -Fig. 7' is a longitudinal sectional view plate -'11'11'of Fig. 10; and, J.

Fig. 1. The cold water of a city supp'ly pa sses the valve 6, whileTthe cock 7 is also con- 7 medium, either hot water or steam, from the through the water heater. in th'e direction'offl the arrows shown online 7 7"of Fig. 2 and the opposite direction to Fig. 6;. Fig. 8 is a vertical sectional view through the central portion of the water heater, taken on theline 88 ofFig;7 I Fig. 9 is a' fragmentary sectional View, showing the manner in which one ofthe heat ing tubes is mounted in an end 'suppiorting water. I

" Referring more specifically to the draw ings, the waterlheater isindicated by 1, a water or steam boileris shown at' 3 and a hot water storage tank2 is likewise illustrated in into the tank 2'throughthe pipe l and then passes from the tank'2 through thepipe 5 to the'water heater .1. The movement of the cold water throughthe pipe: is controlled by nected to the' pipe 5, for purposes yet to ap.-'

Ip'earQA return pipe 8 is also 'provided to' connect the Water heater to the storage tank Qand it is'th'rough thispipe that the heated water passes from-- the water heater to the tank )2. The hot water tobe used is conduct edfrom theltank 2"by the valved pipe 9. There is alsoprovided a valvedpipe 5'connected to pipe 5, asshownin Fig. 1. When desired the valve-,6 may be cl-osedand water; circulatedrapidly through tank2 by pipes 4, 5, and. 5? for. cleaning sediment fromthe tank-2., i 'The water heater 1 obtains its heating supply pipe 10, this supply 'pipe1Qbeing connectedto the boiler '3. The movement-of steam or'hot water through the pipe 10 is controlled by the valve 11. After theyhot 1' water or steam from the! boiler 3 passes through the water heater 1, it is returned to the boiler 3, through the return pipe 12, which has a valve 13 and a cook 14, for purposes yet to appear.

The water heater 1 consists of a casing 15, which is elongated as illustrated clearly i Figs. 1, 6, and 7. This casing 15 may be substantially elliptical in cross section, as shown in Fig. 8, although it is obvious that it may be round or square, without departing from the spirit of the present invention. Flanges 16 and 17 are formed integral with the casing 15 and extend outwardly there from. The end supporting plates 18 and 19 entirely close the ends of the casing 15 and are secured to the flanges 16 and 17 by the screws 20. Packing disks 21 are interposed between the flanges and end plates, thereby forming a water-tight closure, as illustrated in Figs. 6 and 7.

The primary end cap consists of a back 22 and an integral inwardly extending collar 2.3, having formed thereon an outwardly extending flange 24. A central vertically extending partition 25 is formed within the cap and extends from the top to the bottom thereof, as illustrated in Fig. 3. A horizontal partition 26 is likewise formed within the cap and. extends from one side of the cap to the central portion of the vertical partition 25. This primary end cap, consisting of a back, collar, flange, and partitions is formed as a unit, the outer edges of the partitions ter minating evenly with the face of the flange 24. The arrangement of the partitions within the cap form an entrance recess 27 and exit recess 28 formed thereabove, while opposite these two recesses and on the other side of the vertical partition 25 is an enlarged vertically-extending circulation recess 29.

The secondary cap is positioned upon the opposite end of the casing and consists of a. back 30 and an integral inwardly extending collar 31, having formed thereon an outwardly extending flange 32. A central horizontally extending partition 33 is formed, within the cap and extends from one side of the cap to the other and the outer edge of this partition terminates evenly with the face of the flange 32. The arrangement of thishorizontally extending partition 33 forms an enlarged lower circulation recess 34; and an enlarged upper circulation recess 35.

When the water heater is in an assembled condition suitable packing or packing disks 36 is or are interposed between the supporting end plates 18 and 19 and the flanges 24: and 32 of the recessed end caps. These end caps are held in demountable positions by bolts 37, which pass through the flanges of the casing and of the end caps, as well as the end plates, as illustrated in Fig. 1. By referring par-- ticularly to Fig. 6, it will be seen that the. partitions, in conjunction with the supporting end plates 18 and 19, form water-tight recesses.

The heating tubes 38 extend longitudinally of the casing as shown in Fig. 6. The ends of these are carried by the end supporting plates 18 and 19 in a manner to be more fully ex:- plained. The heating tubes 38 communicate with the entrance recess 27 of the primary cap and at their opposite ends with the lower circulation recess 34, at one side thereof, or the secondary cap. The inclined heating tubes 39 communicate with and lead from the opposite side of the recess 3% and the discharge ends of the tubes 39 communicate with the lower portion of the vertically extending circulation recess 29. The heating tubes 40 communicate with and lead from the upper portion of the vertically extending circulation recess 29, as illustrated in Fig. 7 and communicate with and discharge into one side portion of the upper circulation recess 35. The heating tubes 41 communicate and lead from the opposite side portion of the recess 35 and communicate and discharge into the exit recess 28. l/Vhile Figs. 2 and l are elevations of the end supporting plates 18 and 19 and illustrate the manner in which the ends of the heating tubes are mounted in the supporting plates, the dotted lines on these figures show the manner in which the end caps including the several partitions lit upon these supporting plates, and thereby form the interior recesses, hereinbefore referred to and the manner in which the heating tubes lead into or out of the recesses. By referring to Figs. 6 and 7 it will be seen that the heating tubes are inclined so that their discharge ends are higher than their intake ends, thus aiding in the circulation of the water as it is being heated.

hese heating tubes are supported by the end supporting plates in the manner most clearly illustrated in Figs. 9-, 10, and 11. The plates 18 and 19 are provided with a number of internally threaded pockets 12 having at their inner portions abutment collars 13. The heating tubes extend through the abutment collars and the ends of the tubes fit within externally threaded ferrules 1 1, these 1 er rules 4A being screwed into the pockets 412 and bearing upon the packing e5 in the pooh ets, thereby forming a water-tight connection. This construction in eii ect forms a stui'hng box on the end of each tube, which permits the expansion or contraction, of the tubes due to heat or cold, and since each tube is provided with a pair of such stuffing boxes, it is obvious that the action just referred to is indcpendent on each tube It is apparent from the drawings that the heating tubes are arranged in parallel and no: in series, and for this reason the possible clogging of one tube will not in the least affect the flow of the water through the re maining tubes. Furthermore, the arrangeenlarged heating larger quantity of water to be heated. It

should also be understood, that in the event f ment of the tubes as ust specified provides an area, thus permitting a one of the tubes becomes leaky or otherwise defective and it is impossible to' immediately replace it with a new tube,'the' defective tube may nevertheless be removed and the corresponding pockets 42 closed by the insertion of wooden plugs and in this event the .water heater will efficiently and properly function on the remaining heating tubes. Attention is especially invited tothe-fact that the heating tubes of this invention are straight throughout their entire lengths, thus eliminating friction producing curves orbends and allow- One of the end caps may be readily removed when the latter action is desired and then the sediment is pushed into the other end cap,

from which it will be easily removed when the heater is flushed. The heating tubes are preferably formed of copper and have their ends plain,thus permitting of their insertion or removal with very little trouble.

In operation the cold supply of water flows through the pipe 5 into the entrance recess 27 of the primary cap. The flow is continued portion of the upper circulation recess 35. The water then passes from the remaining side portion of the recess 35 through the'heat-' ing tubes 41, being discharged from the upper ends of the tubes 41 into the exit recess 28, from whence it flows through the pipe 8 into the hot water storage tank 2. During this flow of the water to be used the casing 15 is filled-with heated water or steam, which has been received from the boiler 3 through the pipe 10 andreturned to the boiler 3' by the plpe 12.

While this invention has been described'as used for heating water. it may likewise be used for pre-heating oil for oil burners.

The various parts used in the assembly of this water heater are of very simple construction so that its cost of construction is very reasonable. There is no expensive brazing or welding involved and, furthermore, the elimination of either or both of these common.

practices has been found from experience to eliminate troublesome leaks resulting therefrom. Avoiding these practices, for'example,

permits of the removal'of the heating tubes 1ng sediment or lime deposits to be removed 7 from thelr interlors by drilling or ramming.

so that lime deposits or sediment threeon may;

be scraped therefrom. The tubes may then be replaced and awater-tightunion'is'formed" by' the stuffing: boxes above described, the w pac'kingbeing tightened when required.

' By referring to Fig.12 it will be seen that .a number of casings 1 may be connected-toe gether,-with the end caps on the outer ends of the two endmost casings; *The casings 1 in this instance may be fed with heated:

water on steam from the pipe 10 and the heated water or steam being returned to the boiler by the return pipe 12. IThe'heating tubes, under this form of operation,would' be rather long'topass entirely through all of the casings 1 to communicate with the'e'nd caps, the operation of the tubes being as above set forth.- Thus it will be seen that the water heater is adaptable for anycapacity as additional sections can be added to its length and longer heating tubes substituted for the ones used when a single casing is used. 7 When it is 15, the valve 13 in pipe 12 may be closed and the cock 14 opened and the sediment will then be discharged. Access may also be had to the interior of the casing by the removal of the plug 46, at which time, the valves 11 and 13 may be closed and the cock 1 4 opened and desired to clean out the casing anauxiliary cleaning agent forced through;

Afterthe casing for cleaning purposes.

wards the plug must be replaced, as shown in Figs. 6,7, and 8.

closing thevalve 6 and the valve pipe 9, when the tubes and caps will drain and the sedimentpass out at such time.

While the preferred construction and operation of the present invention has been disclosed and described, it is apparent that I do not wish to limit this invention to then specific details disclosed and described, but do desire to include all modifications and changes as come within the scope of the invention as claimed.

fHaving described the construction and; I operatlon of my invention, what I claimis new and desire to cover by Letters Patent is:

A hot waterheater comprising a casing,

tubing sheet plates connected with the ends .ofthe casing, head caps connected :withthe casing and housing-the sheetplat-es, one of said caps having'a vertical partition engag As most of. the sediment gradually settles 1 I A tovthe bottom, the tubes and caps may be cleaned by merely opening; the cock: 7 and ingthe adjacent sheet plate and'a horizontal j partition engaging saidplate extending from one side; of the cap to the vertical partition,

said last mentioned sheet plate and the par titions'defininga lower small cold water inlet 'andan upper small hot waterhoutlet v chamber and a large circulating chamber, a

horizontal partition extending across the other cap engaging its adjacent sheet plate and defining in connection therewith upper and lower circulating chambers, tubes ex tending from one sheet plate to the other inclining from the cold water inlet chamber to the lower circulating chamber of the other cap, tubing extending from the last mentioned circulating chamber to the large circulating chamber of the first mentloned cap, tubes extending through the sheet plates connecting the large circulating chamber to the upper circulating chamber and tubes extending through the sheet plates connecting the upper circulating chamber with the small upper outlet chamber.

In testimony whereof I affix my signature.

WILLIAM BAD-EN.

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