US911993A - Steam-superheater. - Google Patents

Description

H. W. JACOBS.-

STEAM SUPERHEATE'R. APPLICATION FILED OOT.Z4,1908.

Paterited Feb. 9, 1909.

7 SHEETS-SHEET 1.

wane/was H. W. JACOBS.

STEAM SUPERHEATER.

APPLICATION FILED 0o1'.24,190a.

Patented Feb. 9, 1909.

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H. W. JACOBS.

STEAM SUPERHEATER.

APPLIOATION FILED 00T.24,1908.

Patented Feb. 9,1909.

7 SHEBTSSH'EHT 3; I

W. JACOBS. STEAM SUPBRHEATER.

APPLIOATION TILED O0T.24,1908.

Patented Feb. 9, 1909.

. 7 SHEETS-SHEET 4.

5 mm who; ZEN).

H. W. JACOBS. STEAM SUPERHEATER. APPLICATION FILED 00T.24, 1908.

- Patented F9119, 1909.

H. W. JACOBS. STEAM SUPERHEATER. APPLICATION PILEDo0T.2,4,1908. I

Patented Feb. 9,1909.

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H. W. JACOBS. STEAM SUPERHEATER. APPLIOATION FILED 0OT.24,1908.

Patented Feb. 9, 1909.

7 SHEETSSHEET 7v iii section taken on HENRY W. JACOBS, OF TOJPEKA, KANSAS.

- STEAM-SUPERHIEATEB.

Specification of Letters Patent.

PatentedFenB, 1909.

Application filed October a, 1903. Serial in. 469,435,

To all whom it may concern:

, Be it known that I, Hnnnr W. Moore, of Topeka, the State of Kansas, have invented a certain new and useful Improvement in Ste am-Superheaters, and do hereby declare that the following is a full, clear, and exact description thereof. a

My invention relates to steam superheaters and especially to super-heaters that are used in railway locomotives.

My object is to provide a super-heater of the above character with as great a heating surface as possible for a given space, to so locate the parts that there shall be a very free circulation'of flue gases through thesuper-heater, thereby rendering the heating of the surfaces of the super-heater more efficient and-more rapid, to produce a more thorough and more rapid mixture of the steam being super-heated, to locate the parts in such a manner oughly accessible so that they may be readily reached for the purpose of making repairs when necessary and also for the purpose of cleaning, and such a' manner of wear on the walls of the that there will be, a minimum super-heater because of the contact therewith of the fluegases and cinders.

The details of my invention will be described hereinafter in connection withthe accompanying drawings, in which Figure 1 is'a fragmental side "elevation of the front portion of a locomotiveeuipped with my su er-heater; Fig. 2 is a' ongitudinal vertical sectionof the same; Fig. 3 is a plan view of the interior constructlon'of the super-heater; Fi 4 is a transverse vertical ine4 .4 of Fig. 2 Fig. 5 is a similar .section taken on 5-.5 of Fig. .6 is, an elevational' v ew of 'another mod' cation; and Fig. 7 ,1s a plan viewpartly in section of the same. 7

In the drawings 1 is a cylindrical casing located at the front part of a locomotive and constituting the smoke arch of the'same. The steam super-heater 2 which is'located Within this casing, pipe 3-;which conveys a supply of steam from the steam boiler 4 to the front section'5 of the super-heater. The front section 5 comprises an outercylind-sical casing 7 and an inner cylindrical casing 8. Thecylindrical casing 8 provides a large transverse cylinin the county of Shawnee, and in:

that they shall be thor finally to locate the parts inis, therefore, compelled to pass is connected to the dry steam the body of this section of the su ,er-heat'er, the pur ose of which will he ereinafter describe Theh'od of this section .of the sup r w ch l es e en the two cylindrical casings 7 and 8, is ,cemposedofa pluralityof longilldinfil tubes 9 of small diameter, the ends of which are entirely open in the front and in the rear of this section of the super-heater,

same. Steamis led into this section of the super-heater from the pipe 3, as alread scribed, whence the steam is led ,aroun various longitudinal tubes 9 therein. order to cause aniefiicient circulation of the steam through this section of-fthe superheater, I rovide it with a pair of spirallydi rected bae plates 10, .whichloextend from the. top thereof, and .one of which is situated within-the other, as shown in Fig. 4. As an, additional baflle plate, vI'locate a partition therein extending upwardly from the central cylindrical casing 8 -to the outer casing 7,- The pipe 11 is'directed rearwardly from this section of the super-heater endis connected ,to the upper surface of the rear section of the super-heater 12. This is constructed with a open both at-t e rear and-the front ofthis section of the super-heater as in thejront section 5 of the supereheater. A plurality of horizontally directed bafiie plates. 1A: are located in this section of the-super-heater, These extend alternately from opposite sides thereoflending in proximity to the other sides of the super-hea'te The steam backward and forward-from one side of this section; of the super-heater to the other around the baflieplates '14, until itfinallyreaches the outlet ipe 1-6 located at the bottom of the superlleater. -After leaving this section of the superheater, the outlet pipe 16 branchesand is directed downwardly, as shown in Figs. 1 and 3, the branches being connected at their lower ends to'the steam chests of the locomotive.

The exit of the steam through the pipes 22, in to the steam chests may, if desired; be

propriate levers. and cennections for its oper ation. The exhaust steam, asis usualin 19+ comotives, .is permitted to escape into the stack; and to. act this, l-provide the central 0 lindricel casing 8 of the {trout section :OT. t esuper-heeter 5 with rearwardly directed controlled by athrottle valve 17, having ape so as to provide for the 5;;

free passage of the flue gases, through plurality of ion 'tudin-al tubes 13,-which Care connection 18, which is connected .with an upwardly directed pipe 19 leading to the stack of the locomotive, and with an exhaust nozzle or pipe 20, into which the exhaust steam is injected in an upward direction.

All of the seams in the two sections of the super-heaterdncluding the fire tubes and the connections of the same, with the casings of the super-heater are welded together. The welding may be done autogenously,electrically or otherwise. Thus, with the exception of the steam connections. the superheaters are made of absolutely integral and solid constructions.

The com leteoperation of my superheater is as ollows:Steam passes from the steam boiler into the dry steam pipe 3 and thence to the front section 5 of the steam super-heater. There the steam is brought into intimate contact with the outer sur faces of the longitudinal tubes 9, which are located in staggered relation to one another,

carries with it t so as to effectively'mix the entire body of the steam. The baffle plates 10 then cause the'steam to pass downwardly around the outer bafiie plate to the bottom of this sec tion of the super-heater, and thence downwardly from the other side of the superhcater around the outside of the inner baflle plate and then finally downwardly around heater through the pipe 16, controlled by the throttle valve 17, into the steam chests of the locomotive. The exhaust steam after leaving the cylinders of the locomotive escapes in an upward direction into the lower end of the exhaust nozzle 20. The steam exhaust assing up through this pipe lie flue gases which are drawn in a rearward direction throu h the cylindrical casing 8 into the pipe 19 Eaading to the stack of the locomotive. The flue ases, pass from the fire-tubes 22 into the ongi tudinal tubes 13 of the rear section of the super-heater, though partly around the outside of the super-heater casing, then around the exhaust nozzle 20 and through the tubes 9 of the front section of the super;- heater 5, though partly also aroundthis section of'the su er-heater,. and finally into the front .end 0 ,the cylindrical casing 8. When it is desired to clean or repair the front section 5 of the su er-heater, it is necessary merely. to detac the removable front end of the locomotive casing, thus rendering the front section 5 of the superpossible to clean t e fire-tubes 22, inasmuch as the tubes 12 of the rear section a of the su erheater are in alinement therewith. It will be seen that by this arrangement an extremely large heating surface is provided in the super-heater inasmuch as each of the sections, of the super-heater is provided with innumerable longitudinal pipes located in staggered relation to one another, so that every .portion of the body of steam being super-heated is compelled to come in contact continually with the heating surfaces, and for the further reason that the outer casings of the super-heater sections are also heated by contact with the flue gases. At the same time there is a very freecirculation of the flue gases'through ,the super-heater because' of the location 0 all of the pipes in the same direction and in positions 1n which the? constitute practica ly continuations of efac 1 other. Furthermore, in the case of the rear section of the super-heater the tubes thereof are located in direct alinement with the fire-tubes of the boiler. Again, all of the parts of the super-heater are very readily accessible and are alsoso located that they can be readil removed, if found desirable. Finally, the lbcation of'the .v'arious tubes through which the flue ases are caused to of the construction and in the adaptation of my super-heater to, any particular locomotive. The steam pipe connections are especially capable of many. different arrangements to adapt my device to the needs of any particular locomotive or engine. Among other changes that might be made, are the connection of the rear section of the superheater 12 with the steam chests. of the low pressure cylinders and the connection of the front section thereof with the steam chests of the high pressure cylinders, it not beingnecessary to super-heat the steam to as high a temperature when used in low pressure cylinders as in the case where it is used in high pressure cylinders.

In Figs. 8 and}? I I modification of my invention in which the front and rear sections of the super-heaters are connected respectively to the high and .lowpressure cylinders of the locomotive, as

above described. The modification shown in these figures differs from the modification of my invention already described, in that have shown another the front section of the super-heater 7 is. provided with a pair of downwz-u'dly directed outlet pipes 23- leading from the rear face thereof tothe valve chambers of the high pressure cylinders 24, located on eitherside of the locomotive. The exhaust steam is led from these cylinders by means of a pair of pipes 2-5- to the rear section of the superheater 12. Pipes-26' connected to this section of the supcr-heaterlead. the steam from the latter to: the valve-chambers ofthe low pressure steam cylinders 27, which are alsolocated on either side of the locomotive. The steam is allowed to exhaust from these cylinders into the stack of the locomotive in;

- the manner already described.

While I have described my invention abovein detail, I wish it to be understood that I consider my invention. to bea broad one and one capableof many changes and adaptations. without departing from the spirit thereof.

I claim:

1 In a device of the character described,

the-combination, with aboilerhavingasmoke chamber andifiretubes opening thereinto, 0t steam. superheating means comprising a plurality of separated secticnsprovided with fire tubes in said chamber, the fire tubes of said sections being in alinement with each other and. with the iire tubes ofthe boiler, and said chamber having an outlet leading fromrbetween said sections. 1

2. In a device of the character described, the combination with a boiler having asmoke chamber and fire tubes opening thereinto,

of steam superheating' means comprising a plurality of separated sections provided with staggered the tubes in said chamber, the fire tubes of said sections being in alinement with each other and with thefire tubes of the boiler, and said chamber having an outle leading from between said sections.

'3. In a device of the character described, the combinationof a series of superheater sections with which furnace gases come in contact successively, and means whereby one of said sections delivers steam to a cylinder of a compound. engine andanother section earlier in the series receives the exhaust therefrom and delivers it to another cylinder of said engine.

4. In a device of the character described the combination of a steam boiler, a stack. and fire tube steam superheating means conipris ing two separate hollow sections one in front of and'one the rear of the stack, all of the seams in the superheating means, with the e'xception of the steam connections being welded together, thus making each of the sections an integral structure.

5. In a steam engine the combination of a steam boiler and steam super-heating means comprising front and rear sections each of said sections containing a plurality of fire tubes, a front section being (.(rllhddtfitl to the high pressure cylinders of a steam engine and a rear section eing connected with the low pressure cylinders thereof.

61 vIn a device of the character described, 7

the combination of a steam boiler, steam superheating means of the fire tube type comprising two separate sections one in front of the other, and a stack located between the sections, the steam exhaust passup: through the stack.

, 'Z. In a device of the character described, the combination of a steam boiler, steam superheating means of the fire tube type coin ris' two so crate sections' a stack l I located between the sections, one of said sections being provided with a central open-- ing, and means for causing the products of combustion: to pass through said opening after having been led through the fire tubes of each. section and finally into the stack.

8.. In a device of the character described, the combination of a steam boiler, steam. superheating means of the fire tube type comprising two separate sections, one oi. said sections being provided with a central opens ing, and a stack having an attached pipe front and rear thereof and a conduit directed horizontally and then upwardly intermediate the ends of the superheating means and connected to the stack.

11. In a device of the character described, a superheater comprising a substantially an nular closed drum, a plurality of fire tubes passing through the interior of said drum, a

partition in said drum extending from the wall of its central passage to its pcripheral wall, a plurality of bafiies in said drum, each abutting against its peripheral. wall at one end adjacent said partition, extending around the central passage, and terminating adja cent the abutting end of the next one, and inlet and outlet connections for passing steam through the tortuous passage formed by said partition and bafilcs and the walls of said drum.

12. In a device of the character described,

the combination with a boiler having a smoke chamber for receiving heated gases there from, of superheating means in said, chamber comprising two separate fire tube sec tions with which the heated gases come in to the portion of said chamber remote from contact successively, one of said sections having a passage therethrough, and means whereby the heated gases which have passed their point of entry are caused to pass back through said opening to an outlet in the wall. of said chamber.

13. In a device of: the character described, the combination with a boiler having a smoke chamber for receiving heated gases therefrom, of super-heating means in said chamber comprising two separate fire tube sections with which the heated gases come in contact successively, one of said sections having a passage therethrough, and means whereby the heated gases which have passed to the portion of said chamber remote from their point of entry are caused to pass back through said opening to an outlet in the upper wall of said chamber.

14. In a device of the character described, the combination of a boiler having a smoke chamber for receiving heated gases therefrom, of superheating means in said chamber comprising two separate fire tube sections with which the heated gases come in con tact successively, one of said sections having a passage therethrough, and means whereby the heated gases which have passed to the portion of said chamber remote from their point of entry are caused .to pass back through said opening to an outlet in the wall of said chamber located between the two superheater sections.

15. In a device of the character described, the combination of a boiler having a smoke chamber for receiving heated gases there-,1

from, of superheating means in said cham- Yber comprising two separate fire tube sections with which the heated gases come in contact successivel one of said sections having a passage t erethrough, and means whereby the heated gases which have passed to the portion of said chamber remote from their point of entry are caused to pass back through said opening to an outlet in the wall of said chamber, said means comprising a pipe connecting at one point with said passage and at another point with the outlet in the wall of the chamber.

16. In a device of the character described, the combination of a boiler having a smoke chamber for receiving heated gases therefrom, of superheating means in said chamber comprising two separate fire tube sections with which the heated gases come in contact successively, one of said sections having a passage therethrough, and means whereby the heated gases which have passed to the portion of said chamber remote from their point of entry are caused to pass back through said opening to an outlet in the wall of said chamber, said means comprising a pipe located between the superheater sections connecting at one point with said passage and at another oint with the outlet in the wall of the cham- In testimony thatI claim the foregoing I have hereunto set my hand.

HENRY JACOBS.

Witnesses:

CLARKE J. MORRISON, W. H. EASTMAN.

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