US1057727A - Reheater for locomotives. - Google Patents

Reheater for locomotives. Download PDF

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Publication number
US1057727A
US1057727A US54222610A US1910542226A US1057727A US 1057727 A US1057727 A US 1057727A US 54222610 A US54222610 A US 54222610A US 1910542226 A US1910542226 A US 1910542226A US 1057727 A US1057727 A US 1057727A
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Prior art keywords
heater
casing
feed water
tubes
boiler
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Expired - Lifetime
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US54222610A
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Grafton Greenough
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LOCOMOTIVE SUPERHEATER CO
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LOCOMOTIVE SUPERHEATER CO
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Priority to US54222610A priority Critical patent/US1057727A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B13/00Steam boilers of fire-box type, i.e. the combustion of fuel being performed in a chamber or fire-box with subsequent flue(s) or fire tube(s), both chamber or fire-box and flues or fire tubes being built-in in the boiler body
    • F22B13/06Locomobile, traction-engine, steam-roller, or locomotive boilers

Description

G. GREENOUGH.
REHEATER FOR LOCOMOTIVES.
APPLICATION FILED PEB.5, 1910,
1,057,727. Patented Apr. 1, 1913.
2 SHEETS-SHEET l,
G. GREBNOUGH.
REHBATBR FOR LOCOMOTIVES. APPLICATION FILED FEB. 5, 1910 1,057,727. Patented Apr. 1, 1913 2 SHEETS-SHEET 2.
GRAFTON GREENOUGH, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGNMENTS, T0 LOCOMOTIVE SUPERHEATER COMPANY, A CORPORATION 0 NEW JERSEY.
Specification of Letters Patent.
REI-IEATER FOR LOCOMOTIVES.
Patented Apr. 1, 1913.
Application filed February 5, 1910. Serial No. 542,226.
To all whom it may concern Be it known that I, GRAFTON GREENOUGH, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Reheaters for Locomotives, of which the following is aspecification.
My invention relates to certain improve ments in compound locomotives in which the steam passes from a. high pressure cylinder to a low pressure cylinder through a length of pipe.
The invention is particularly adapted for use in compoundlocomotives where the high pressure cylinder is located at some distance from the low pressure cylinder.
The main object of the invention is to provide a re-heater for the steam as it passes from the high pressure cylinders to the low pressure cylinders.
A further-object of the invention is to so construct the heater that it can be mounted in the feed water section of the boiler.
In the accompanying drawings :Figure l, is a'diagrammatic sectional view of sufiicient-of a locomotive boiler to illustrate my invention; Fig. 2, is a longitudinal sectional view on the line 2 2, Fig. 3, of sufiicient of the boiler to illustrate my invention; Fig. 3, is a transverse sectional view on the line 3-3, Fig. 2; Figs. 4. and5, are views illustrating modifications of the invention.
A is a locomotive boiler having a steam section A and the feed .water section'A separated by an intervening combustion chamber B. B is the fire chamber and .B This type of boiler is made in two sections-coupled at a, and in the steam section A are 'tubes a, and in the feed water section are tubes. a The high pressure cylinder is indicated at C by dotted lines, and the low pressurecylinder'at C by dotted lines, and my invention relates particularly to the re-heater through which steam must pass whichis exhausted from the high pressure cylinders and flows through the re-heater to the low pressure cylinder. v
D is the re-heater, made cylindrical in the present'instance, the casing (Z of the reheater extending beyond the tube sheets I), b of the feedwater heater a sufiicient distance to allow the pipes c, 0' respectively to be coupled to the re-heateroutside of the feed water heater. The re-heater has headers cl, and extending from one header to the other within the heater is a series of fiue tubes 6. The flue tubes are open at the rear end to the intermediate combustion chamber B and at the forward end to the smoke box B In the present instance 0 c are saddles secured to the projecting portions of the re-heater D, these saddles are coupled to the pipes c, 0, as clearly shown. It will be noticed that there is a casing F secured to. the two tube sheets I), b, and this casing is greater in diameter than the reheater and the re-heater passes entirely through the casing. The space between the casing and the re-heater is open at both ends, so as to allow for the free flow of the products of combustion through this space as well as through the tubes of the re-heater. This construction prevents the water in the feed water section coming in direct contact with the re-heater. Blocks f, or'other suitable spacing means, may be used to properly support and space the re heater, or a construction as shown in Fig. 4 may be used, in which the casing F is reduced in diameter at each end f so as to fit the re-heater. This casing is not attached to the re-heater, and thus allows free expansion and contraction. i V
In Fig. 5, I have shown another method of coupling the pipes c, c to the ire-heater D, and in this case the saddle is dispensed with and a plate c v is used on the inside of the re-heater and is riveted to its shell, and the pipe 0* has a threaded portion which is' screwed into this plate.
By the above construction-it will be seen that I make a very simple and efi'ective, reheater for use in connection with the type of locomotive. above described; the steam has a free flow through the re-heathr from the high pressure-cylinder to the low pressure cylinder, and the products of combustion will readily pass through the tubes and through the space between the re-heater and the casing, as well as through the tubes of the feed water heater. hen repairs are necessary the re-heater can be readily uncoupled and removed replaced.
I claim 1. The combination in a locomotive boiler, of a. boiler section; a feed water section having a cylindrical opening extending entire therethrough; and a re-heater mounted in from the boiler and the said'opening and projecting at each end into the intermediate combustion. chamber and smoke box of the locomotive, whereby the products of combustion, passing through the'boiler, will pass through the feed water heater and the re-heater.
2. The-combination of a boiler having a steam space;- a feed water heater located beyond the steam space in the boiler andtom' sisting of headers with longitudinal tubes therein; and a cylindrical casing, also attached to the headers; with a re-heatcr locatcd within said casing and consisting of a casing and a series of longitudinally arranged flue tubes, so that the products of combustion, as they pass through the boiler, travel through the tubes of both the feed water heater and the re-heater.
3. The combination in a locomotive boiler having a steam section at One end and a feed water section at the other end separated by an intervening combustion chamber; a fire box and a smoke box; tubes in 528 the steam section through which the prodnets of combustion pass fromthe fire box into the intermediate chamber; and a series of tubes in the feed water section; of an enlarged casinglongitudinally arranged in the feed water section; a re-heater consisting'of a casing less in diameter than the casing in .the, feed water section and having a series of flue tubes therein so as to allow for the free passage'of the products of combustion from the intermediate combustion chamber through the fines or me feed water heater and the re-heater, said 're-heater extending at each end beyond the feed water heater;
' and pipe connections on the extensions.
tioned casing and lines extending from one of said last mentioned tube sheets to the other, whereby products of combustion may pass through said last mentioned tubes and through the space between said casings, Ineans'to deliver steam to the space within the last mentioned casing around the last mentioned tubes and means to conduct steam from said space.
5. The combination in a locomotive boiler, of a boiler section, a feed water section having an enlarged flue or casing extending therethrough, a combustion chamber between the boiler section and the feed water section, a smoke box beyondthe feed water section, and a re-heater mounted within said enlarged fiue or casing and out of contact therewith, whereby the products of combustion, in their passage from the combustion chamber to the smoke box, pass through said enlarged flue or casing around the re-heater.
6. The combination in a locomotive boiler, I
of a boiler section, a feed water section having an enlarged flue 0r casing extending therethrough, a combustion chamber between the boiler section and the feed Water ing extended from one tube sheet to the other, and tubes extended from one tube sheet to the other within said last mentioned I casing.
- 7. The combination in a locomotive boiler, having a steam section at one end, a feed water section at @the other end, a fire box, a combustion chamber between the steam section and the feed water section, a smoke box, tubes in the steam section through which the products of combustion pass from the fire box into the combustion chamber, and tubes in the feed water section through which the products of combustion pass from the combustion chamber into the smoke box, of an enlarged fine or casing extended through the feed water section and a re-heater located within said first mentioned casing and out of contact therewith and consisting of a casing less in diameter than the first mentioned casing, tube sheets and tubes extended from one tube sheet to the other through which the products of.
combustion pass from thecombustion ohamher into the smoke boxl In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.
GRAFTON GREENOUGH.
Witnesses:
JAS. H. M. HAYES, W. N. TUTTLE,
US54222610A 1910-02-05 1910-02-05 Reheater for locomotives. Expired - Lifetime US1057727A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050098322A1 (en) * 2003-09-24 2005-05-12 Balen Robert M. Self-propelled swabbing device and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050098322A1 (en) * 2003-09-24 2005-05-12 Balen Robert M. Self-propelled swabbing device and method
US20080087438A1 (en) * 2003-09-24 2008-04-17 Balen Robert M Self-propelled swabbing device and method
US7784549B2 (en) 2003-09-24 2010-08-31 Swab-Rite Tool Corp. Self-propelled swabbing device and method

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