US934729A - Superheater. - Google Patents

Description

H. W JACOBS.

SUPERHEATER. APPLICATION FILED APR.27,1909.

934,?29, Patented Sept. 21, 1909.

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H. W. JACOBS.

SUPERHBATER.

APPLICATION FILED APB..27, 1909.

Patented Sept. 21, 1909. a SHEETS-SHEET z.

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H. W. JACOBS. S UPERHEATER. APPLICATION FILED APR.27, 1009.

Patented Sept. 21, 1909.

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HENRY W. JACOBS OF TOPEKA, KANSAS.

SUPERHEATER.

Specification of Letters Patent. Patentml Sept, 21, 1909,

Application filed April 27, 1909. Serial No. 492,457.

To all whom it may concern:

lie it known that l, Hnxnv \s'. .laoons, of 'lopeka, in the county .of Shawnee, and in the State of Kansas, have invented a certain new and useful Improvement in buperheaters. and do hereby declare that the fol lowing is a full, clear, and exact description thereof.

The object of my invention is to provide a superheator, and especially. a superheater for railway locomotives, which shall have, among others, the following advantages: that it shall have great heating surface for a given volume; that the circulation ofgases shall be impeded as little as possible, and yet they shall be so divided as to readily give up their heat; that the steam shall be so battled and conveyed as to keep it thoroughly mixed and continually impinging upon surfaces heated by the gases; that the flue gases shall be so directed be so broken up that neither netting nor a diaphragm plate shall be necessary; that all parts of the superheatcr and adjacent parts of the boiler shall be easily accessible for repairs; and to-such ends my invention consists in the superh atcr hereinafter specified.

In the accompanying draWin Figure 1 is a longitudinal sectional view of the front end of a locomotive boiler having my invention applied thereto, the superheater being shown as applied to a simple engine; Fig. 2 is a view showing a. crosssection taken on the line a.r of Fig. 1: and Fig. 3 is a similar View taken on the line ;1/ 1 of Fig. 1, both sections looking toward the cab of the engine. a

The, illustrated embodiment of my invention is the best form known to me, but it is only one of many possible embodiments thereof, and is therefore to be regarded only as typical. I

In the said drawings, the cylindrical shell 1 is the smoke arch or smoke box of a locomotive, situated at the front end of the boiler, the rear wall of the chamber inclosed thereby being the flue sheet 2, the flue sheet being united to the boilerEhll 3, and having attached to it the boiler lines 4. \Vithin the smoke box and intermediate between its ends is the exhaust pot or pipe which is directed upwardly into a pctticoat pipe 6, the latter extending to the bottom of the smoke stack 7, which is supported upon the shell 1. Between the exhaust pot and the flue sheet 2 and reversed that sparks and cindcrs shall,

is mounted the rear section of my superheater. Such ection preferably consists of a shell 8, of smaller diameter than the shell 1, supported from the latter shell by angle irons 9. The shell is closed by a front flue sheet 10, and a rear flue sheet 11, and these sheets support a large number of lines 12. A large fine 13 is also secured in the flue sheets and 11 for a purpose later to be described. This rear superheater section is placed sufliciently forward of the forward boiler flue sheet 2 to leave space between the super-heater and the front end of the boiler to admit of a mans oing" into such s race to repair either defective boiler fines or defective superheater flues facinginto this chamher. To admit a man for this purpose, a cinder pot 14 is provided with a man-hole 15 closed by a cover 16, having cinder hoppers 17 attached to the cover by which cinders may be removed. The front superheater section is placed between the petticoat pipe and the frontend of the smoke box, and such section preferably consists of a shell 18 having front and rear flue sheets 19 and 20 respectively, and having a large number of fines 21 connecting the latter, A large fine 22 al 1 connects the said sheets. A fan 23 is mounted in the flue The fine 22 receives one end of a pipe 21 which is connected with va petticoat pipe, and which is closed at its rear end 25.

The connections for conveying steam are as follows: The exhaust pot 5 sits upon the saddle 26. A header, preferably in the form of a throttle 27, is connected with the rear superheater section, preferably by being mounted upon it, and steam pipes 28 connect such header or throttle with the cylinders.

A dry pipe 29 from the steam dome is con:

nected by a pipe 30 with the front superheater section, the pipe 30 being bent to pass.

around the throttle. A pipe 31 extends from the front section to the rear section. Baille plates in the front. sect-ion cause the steam to travel from the pipe 30 by a circuitous route through such front snperheater section to the pipe 31, so as to secure the most effective super-heating of the steam. Likewise baflle plates are provided in the rear section to cause the steam to travel by a circuitous route from the pipe 28 to the throttle.

In the operation of the illustrated embodiment of my super-heater, the steam Coming; from the dome through the pipe 29 is conveyed by the pipe 30 to the front super-heat section, and then, passing through its tortuous passage therein, reaches the pipe 31, by which it is conveyed to the rear super-heater section, where it again traverses a long irregular route and issues through the throttle 29. The steam here passes by the" pipes 28 to the cylinders, and is exhausted through the exhaust pot 5, from which it emerges in a jet, passing up the petticoat pipe and cansing a draft in the smoke stack. The gases emerge from the boiler tines at into th space I 32, between the frontend of the boiler and the rear superheater section, and ii this space the gases are intimately mixed. They then pass both around the outside of the shell 8 of the rear superheater section, and through the fines of the said section, and

thence around the exhaust pot and petticoatpipe and through the tines 20 of the front superheater section, whence they emerge into the space 33, between the front superheater section and the front end of the smoke box. The gases here turn and pass into the large flue 22, and in so passing rotate the fan 23. The gases are then drawn up the smoke stack by the exhaust. The passage for the gases,'

while not offering objectionable resistance to them, is sufficiently tortuous that the cinders and sparks are so broken that as they pass up the smoke stack they are not objectionably large. The rotation of the fan breaks up passing cinders or sparks.

It will be observed that a man can enter the space 32 and repair either fines in 'the boiler or tlues in the superheater. If a line in the boileris-to be replaced, it can be passed through the large flue 13, and a new one passed to the boiler in the same manner.

snperheater having a passage formed therein parallel to said boiler fines, through which boiler fines may be passed for repairs.

In a locomotive, the con'ibination of a boiler shell having a smoke-box in the forward end, a flue sheet forming the rca r wall of the smoke-box, and a snperheater mounted in said smoke-box, said superheater being sufliciently forward of said flue sheet to permit access in the space therebetween for repairs. p

3. In a locomotive, the combination of a boiler shell having a smoke-box in the forward end, a flue sheet forming the rear wall of the smoke-box, an exhaust pot in said smoke-box, a super-heater section between said exhaust pot and said flue sheet, said. section and sheet being spaced sufliciently apart to permit access for repairs, a man-hole providing for such access, and a snperheater section forward oi the exhaust pot.

' 4. In a locomotive boiler, the combination of a boiler shell having a smoke-box in the forward end, a fine sheet forming the rear wall of said smoke-box, a snperheater mounted in said smoke-box sutliciently for ward of said flue sheet to provide for access therebetwcen,said snperheater comprisinga shell and flue sheets having fines passing therethrough, a large line being provided in said supcrheater to permit the passage there-- through of fines for" the generating section of the boiler.

In a locomotive boiler, the combinatioi'i ot' a boiler shell having a smoke-box in the forward end thereof, a flue sheet forming the rear wall thereof, an exhaust pot in said smoke-box intermediate its ends, a pettieoa't pipe above said exhaust pot, snperheater sections forward and to the rear of said exhaust pot, said sections having longitudinally-extending llues, a pipe connected with said.

petticoat pipe and extending longitudinally through oneot said snperhcater sections, and a tan mounted in. said pipe.

(3. In a locomotive boiler, the. combination of a boiler shell having a smoke-box in the forward end thereof, a fine sheet forming the rear wall thereof, an exhaust pot in said smoke-box intermediate its ends, a petticoat pipe above said exhaust pot, superheater sections forward and to the rear of said exhaust pot, saidscctions having longitiulinally-cxtending lines, a pipe connected with said petticoat pipe and extending longitiuliiially through the forward superheater section, it til a fan mounted in said pipe.

ln testimony that I. claim the 't'oregoing have hereunto set my hand.

HENRY V. JACOBS.

' \Vitncsscs:

Enwin J. 1)RINI)LE, Ni-iwoonn.

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