US797190A

US797190A - Liquid-heater.

Info

Publication number: US797190A
Application number: US20922504A
Authority: US
Inventors: Harvey Feldmeier
Original assignee: BURRELL D H & CO
Current assignee: D H Burrell & Co; BURRELL D H & CO
Priority date: 1904-05-23
Filing date: 1904-05-23
Publication date: 1905-08-15
Anticipated expiration: 1922-08-15

Description

PATENTE) AUGL im 1905.,

H. PELDMEEIL MQUID HEATER.

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No. 797,190. EAEENTEE v6.1.6, 1905. E. EE'EDMEIEE.

LIQUID HEATER.

APPLIOATION FILED MAY 23.1904.

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HARVEY FELDMEIER, 0F LITTLEFA'LLS, NEWv YORK, ASSIGNOR TO D. H. BURRELL & COMPANY, OF LITTLEFALLS, NEWT YORK.

LlGtUlD-"l-l EATEFL Specification of Letters watent.

Patented Aug'. 15, 1905 Application filed May 23, 1904. Serial No. 209,225.

Be it known that l, HARVEY FnL1 Mifnn11z,a l citizen oi" the United States, residing at Littlc't'alls. in the county ot' Herkimer and State of New York, have invented new and uset'ul lnuirovements in liiquid-Heaters, oil which the following is a speciiication.

'lhis invention relates to that class et regenerative liquid-heaters in which theincoming cold liquid and the outgoing heated liquid move in opposite directions on opposite sides of a heat-exclninging wall or partition,through which the cold and heated currents equalize their temperatures to a certain extent, so that the incoming cold liquid absorbs heat Vfrom the outgoing heated liquid and cools the latter.

@ne object of the invention is to render the main parts ot the apparatusreadily separable by mounting the main parts upon independent supports, one ol which isa movable truck or carriage, so that the movable part can be readily moved into engagement with the sta tionary part in assembling the apparatus or away from the stationary part when access is required to the interior ot' the apparatus l'or cleaning or other purposes.

Another object el this invention is to construct the regenerative and the direct heating-surfaces in such manner that they are hig'hly ellicient and at the same time simple in construction, the direct heatingsurfaces being' for these purposes located inside of the rotary partition and the latter being' corrugated.

.ln the accompzmyingl drawings, consisting' oit' three sheets, Figure l is a Vfront end elevation of a liquid-heater embodying the invention. Fig. 2 is a vertical sectional eleva tion thereof. Fig. 3 is a diagrammatic sectional elevation showilig' the flow-passages and the direction ot' How. Fig. a is a side elevation, on a reduced scale, showing' the movable part et the heater separated from the stationary part.

Li ke letters of reference refer to like parts in the several figures.

The apparatus consists in the main features by which the lliowpassages are formed ot' an inclosing casing A., having' an annular depression a, a core section or part B, havingI an annular core or projection which extends into the depression (tandis arranged to leave a flow-space between the annular walls pression a of the inclosing shell.

of these parts, and an annular heat-exchanging partition C, which is arranged in said flow-space about iinidway between the walls thcreotl and which has theinlet l) for the cold liquid arranged on one side and the outlet E Afor the heated liquid in the vicinity ol'I the inlet, but on the opposite side, so that the liquid passes from the inlet l) backwardly along` one side of said heat-exchanging partition C to the bottoni cil thereof, then forwardly, but still on the same side olt the partition, to the edge c" thereof, then around the edge. then backwardly on the opposite side ot the partition to the bottom thereof, and then forwardly tothe outlet E, as indicatelfl by the ar rows in Figs. 2 and 3.

The casing A is the stationary part ol. the apparatus and comprises a rear head an annular front 'frame or ring u, both providml with supporting legs or standards a, and a connecting shell or body a", having in its lace the annular depression u, which formed be tween the inner and outer annular walls a u" et' the shell. The front end ot' the outer wall ft is secured to the trent ring ft2, and this outer wall is preferably surrounded by a jacket a", which is secured to the rear head and lront ring oi the casing' and it'orms a surroumling air or non-conducting space e `tor the shell or body.

The central portion al oi'l the shell is secured to the front end oi: a bearing-sleeve F, which p is secured to and projects `lorwardl y trom the rear head M. The central portion ot the shell is preferably bolted between a flange j on the front end or' the bearing-sleeve and a `flange on a bushing' f', arranged in the sleeve.

rlhe coresection l is the movable part ol the apparatus and is provided with a 'front head t', which closes the front end ot the stationary casing A and carries the hollow annular core which projects into the annular derlhe inner and outer walls b2 /f ot' this core are spaced from and substantially parallel with the corresponding` walls u. ot' the shell. The At'ront head is provided with an enlarged central portion or now-chamber t", which is surrounded by the base ol' the core and provided with the inlet-nipple D, to which the inlet-pipe d is connected.

The outer annular wall 7j" of the core is provided within the core with the annular heating-chamber which extends Afrom the base or the front end of the core toward the rear end or ridge thereof and forms a direct heating-surface in the-outer annular wall of the core. This chamber is supplied with a suitable heating medium, preferably steam, by a pipe g and discharges the condensation by a pipe g.

The front head t of the eoresection is removably secured to the front ring r2 of the casing by suitable fastening devices, preferably, as shown, by levers H, arranged radially on the front head, with their outer ends passing through loops /i on the head and engaging in holes in forwardly-projecting ears or lugs /L/ on the front ring of the stationary casing, while their inner slotted ends engage over stationary screws 71,2, projecting from the front head and provided with thumb-nuts if. By turning` the thumb-nuts the inner ends of the levers are forced rearwardly, and as their outer ends are confined in the lugs/on the front ring they bear on the front head and force the latter tightly against the frontring of the casing. A tight joint is formed between the front head 7) and the front ring fr, of the casing, preferably by a packing-ring' if, which is confined in an annular groove in the front head and against which the front ring of the shell bears. Any other suitable fastening and packing devices may, however, be employed in place of those described, and the described details of the casing and core-section may also be varied in other respects.

The heat-interchanging partition C is shaped to correspond with the flow-space between the casing and the core-section and comprises in the construction shown in the drawings curved inner and outer annular portions c c, a curved bottom ce, located, respectively, between the corresponding walls of the casing and core, and a front central portion c3, the partition having approximately the form of a deep annular trough. The concentric portions c c of the partition are preferably corrugated in a circumferential direction to in- ,crease the area of its surfaces and to give the partition a better hold upon the liquid in rotating', while greatly strengthening the partition, thereby rendering the partition more effective in imparting rotary motion to the liquid and reducing the liability of the liquid to coat the hot surfaces. This partition is secured to the inner end of a rotary shaft K, which passes through the bearing-sleeve F and is journaled in the front bushingj" therein and in a rear bushingf'z. The shaft is provided at its rear end with tight and loose pulleys /if or other driving means. The front end of the shaft projects into the central flowchamber 0 of the front head. The partition is detachably secured to the front end of the shaft, preferably by a hub L. having' a tapering bore which is forced and securely held on the tapering portion of the shaft by a hand-wheel or nut Z, screwed on the threaded end of the shaft. The hub of the partition is preferably provided with handles Z, by which it can be readily manipulated.

The removable core-section is supported by a wheeled truck M of any suitable construction, which, as shown, is provided at its front end with standards in, braced and bolted or otherwise secured to the front head b of the core. The truck is provided with a handle ym, by which it can be moved to insert the core into the casing or withdraw it therefrom. Tracks fm2 are preferably provided for the truckwheels to insure the proper position of the core in the casing and prevent injury to the parts in moving the core-section. The latter can be Yreadily removed from the stationary casing with little exertion by simply disconnecting the steam-suppl y pipe, releasing the fastening devices connecting the front head and casing, and pulling the truck away from the casing. After the core is withdrawn the partition can be detached from its supporting-shaft by unscrewing the hand-wheel and can be removed from the shell or body of the casing. Thus all of the surfaces with which the liquid comes in contact are exposed and can be thoroughly cleaned with little trouble. Neither the core nor the stationary casing need be lifted, and no cumbersome and unwieldy apparatus is required to remove the core.

1n the operation of the apparatus the liquid to be heated enters the central port-ion of the apparatus through the supply-orifice D and passes first into the flow-chamber Z, then rearwardly between the inner concentric portion c of the rotary partition and the inner wall Z22 of the core, then forwardly between the outer wall ZJ of the core and the outer or peripheral portion c of the partition and is heated to its highest temperature by passing over the direct heating-surface. The heated liquid then passes around the edge c4 of the peripheral portion c of the partition, then rearwardly between the peripheral portion of the partition and the outer wall a of the stationary shell of the casing, and then forwardly between the inner portion c of the partition and the inner wall t5 of the shell to the discharge-pipe R, through which it leaves the heater. The liquid is kept in rapid motion in the flow-space by the rotation of the partition, whereby the liquid is prevented from adhering to and coating the heated surfaces, and this effect is enhanced by the corrugations of the partition. The cold incoming and the heated outgoing liquid-currents'move in opposite directions on opposite sides of the partition, which causes an eX- change of heat betweenthe currents, resulting in heating the cool incoming liquid and cooling the heated outgoing liquid. The temperature of the liquid is thus first raised by absorbing heat from the outgoing liquid until the direct heating-surface is reached, then raised to the desired degree on the direct heating-surface, and then lowered considerably before leaving the heater, whereby a large saving in heat is effected. The steam-charnber being arranged in the outer portion of the base of the core and Surrounded by the flowpassages, the peripheral portion of the rotary partition and the outer portion of the outer casing is protected thereby to a large extent against radiation and loss of heat.

Vr'hile the casing is described as stationary and the core-section as carried by the truck, an obvious reversal of the parts would be to mount the easing on the truck and the coresection on a stationary support.

The apparatus is especially suitable for heating or pasteurizingmilk, but may be used for treating' other liquids, and can also, with but slight changes, be employed for cooling` liquids.

rlhe flow-space is provided with any wellknown or suitable air-vent for perl'uitting the escape of the air when the milk or other liquid to be treated is first admitted to the flowspace.

l claim as my inventi0n- 1l. lh e combin ation of a stationary, horizontally-disposed casing having an open upright end, a liorizontally-movable core which projects into the open end of said easing and is separated therefrom by a flow-space, a horizontally-nlovable truck or carriage on which said core is supported, means for circulating liquid through said flow-space, and meansfor changing the temperature of the liquid` substantially as set forth.

2. The combination ofastationary, horizontally-disposed casing having an open upright end, a l'iorizontally-movable core which projects into the open end of said casing and is separated therefrom by a flow-space, a horizontally-nlovable truck or carriage on which said core is supported, means for circulating the liquid through said flow-space, means for heating the liquid, and a rotary partition arranged in said flow-space between the casing and the core, substantially as set forth.

3. rlhe combination ofastationary, horizontally-disposed casing having an open upright end, a horizontally-movable core which projects into the open end of said easing and is separated therefrom by a flow-space, a horizontally-movable truck or carriage on which said core is supported, a rotary partition defaehably mounted on said stationary casing and removable therefrom when said core is removed, means for supplying liquid to said `flow-space on one side of said partition and discharging it therefrom on the other side of the partition, and means for changing the 'ten'iperature of the liquid, substantially as set forth.

la The combination of a stationary, horizontally-disposed casing having' an open upright end, a horizontally-movable truck or casing, a horizontally-disposed core which is secured to said truck or carriage and projects into the open end of said casing and is separated therefrom by a flow-space, a rotary shaft journaled in said casing, a partition detachably secured to said shaft and arral'iged in said flow-space between the casing and the core, means for supplying liquid to said VHow-space on one side of said partition and. discharging it therefrom on the other side, and a heating-claimber in said core, substantially as set forth.

The combinationofa stationary, horizontally-disposed casingl having an open upright end, a horizontally-movable truck or carriage, a remm'able head for said a sing mounted on said truck, means for fastening said head to the open end of said casing, a core which is secu red to said head and m'ojects into said casing and is separated therefrom by a flow-space` a rotary heat-intere]langing partition arranged in said flow-sl'mee between the casing and the core, means for circulating liquid through said flowspac-i, and means for heating the liquid, substantially as set forth.

6. 'lhe combination of a statiomn'y, horizontally-disposed casing provided with an annular depression in its open end, a head which closes the open end of the casing and is detaehably secured thereto, an annular core secured to said head and projeetiiig into said depression, `from which it is separated by a flow-space7 a heatirig-chamber forming part of said core, a truck orcarriage which is movable toward and from said casing and on which said head is mounted, a rotary partition arranged in said 'flow-space, a rotary shaft which is journaled centrally in said casing and to which said partition is detachably secured, and liquid -eirculating pipes connnunicating, respectively, with said head within the core and with said easing within said depression, substantially as set forth.

7. The combination of a stationary, horizontally-dismised casing provided with an annular depression in its open end, a detachable head which closes the open end of the casing and is provided with a central 'How-chamber, an annular core arranged on said head around said chamber and projecting into the depression of the casing, from which it is separated by a flow-space, a rotary shaft journaled centrally in said casing and projecting into said lflow-chamber, a rotary partition detachably secured to said shaft in said flow-chamber and extending therefrom through the flow-siatee between the core and the casing, an inlet and an outlet for the liquid on opposite sides of the partition, and means for changing the tenuiierature of the liquid, substantially as set forth.

8. The cfsombination of an inclosing casing havingan annular depression in its open end, an annular core projecting into said depression and separated therefrom by a flow-space,

a rotary partition having the form of an annular trough arranged in said How-space and having its outer portion arranged outside of said core, a heatingchamber arranged in the outer portion of said core and forming a direct heating-surface adjacent to and inside of the free end of said rotary partition, and means for circulating' liquid th rough said flowspace, substantially as set forth.

9. The combination of a stationary, horizontally-disposed casing provided with an annular depression in its open end, a detachable head which closes the open end of the casing and is provided with a central iow-chamber, an annular core arranged on said head around said chamber and projecting into the depression of the casing, from which it is separated by a flow-space, a rotary shaft journaled centrally in said casing, a rotary partition secured to said shaft and extending from said shaft through the dow-space between the core and the casing, an annular heating-chamber arranged in the outer portion of the base of the core and forming a direct heating-surface inside of the peripheral portion of the rotary partition, and means for circulating liquid through the flow-space, substantially as set forth.

l0. The combination of an inclosing annular casing, an annular core projecting into said casing and separated therefrom by a flowspace, and a rotary heat-interchanging partition arranged in said fiow-space between said casing and said core and having its concentric portion provided with corrugations, substantially as set forth.

11. rlhe combination of an inclosing casing' having an annular depression in its open end, an annular core projecting' into said depression and separated from the casing by a Howspace, a rotary partition arranged in said flowspace and having its concentric portions provided with corrugations, an inlet and an outlet for the liquid on opposite sides of said partition, and means for changing the temperature of the liquid, substantially as set forth.

l2. The combination of an inclosing casing having an annular depression in its open end, an annular core projecting into said depression and separated therefrom by a fiow-space, arotary partition arranged in said How-space, said partition extending from its hub backwardly between the inner concentric walls of the depression and core and then forwardly between the outer walls of the depression and core and having its concentric portions corrugated, an inlet and an outlet for the liquid on opposite sides of the partition, and a heatingchamber arranged in said core and forming a direct heating-surface in the outer wall thereof, substantially as set forth.

18. The combination of an annular casing having an internal How-space for the liquid to be treated, means for changing the temperature of the liquid passing through the flowspace, and a rotary partition arranged in said How-space and provided with eorrugations arranged in a circumferential direction, substantially as set forth.

fitness my hand this 13th day of May,

lQOL.

HARVEY FELDMEIER. Vitiiesses:

Looms BURRELL, EDWARD VILHELM.