US1109303A - Steam-superheater for locomotive and other boilers. - Google Patents

Description

J. G. ROBINSON. STEAM SUPERHEATBR FOR LOCOMOTIVE AND OTHER BOILERS.

APPLICATION FILED MAR. 23, 1912. 1, 109,303. Patented Sept. 1, 1914.

2 SHEETS-SHEET 2.

III/ill '9 mmtsses 6 ffufenTr W $1,! 6 6F ante) THE NORRIS PETERS cou'PnonmLlri-lou WASHINGTON, D. C,

J. G. ROBINSON. STEAM SUPBRHEATER FOR LOGOMOTIVE AND OTHER BOILERS.

APPLIUATION FILED MAB. 23,1912.

Patented Sept. 1, 1914.

2 SHEETS-SHEET 1.

I? In verdar yams IA/{messes I 1"? 7 I m @wgww Be it known that L'JOHN soN, a subject of theKing'of Great Britain and Ireland, residing at Manchester, in the county of Lancaster, England, (whose postfroHN GEORGE no amson'for mnncnris'rnn, nncnann.

srEAM-sUrnn'Hna'rErt r03.

Specification of Letters mane nocoM orIvE AND OTHER. BoILnRs."

I I rptiaetanmeaMartha,191a; Seria1'No.685,857., 1

To all whom it may concern GEORGE RoBIN- oflice address is- Boothdalef Fairfield, Manchester, in the county .of Lancaster,

7 England) have invented certain new and useful Improvements in and Relating to Steam-Superheaters for Locomotive. and

other "Boilers; and :1 'dorhereby declare the:

' J following to be a full, clear, and exact description of the invention, such as will en-' able others skilled in the art'to which it appertai'ns to make and usegthe same. -Th1s invention relatesto improvements" in steam superheaters, for locomotiveandother boilers, of the kind in which the ends of thef-superheater pipes orxelementsf are secured to a wall of a suitablysituatedheader or steam collector, said Wall being :provided with holes in which said pipe ends are secured or'with which the pipe ends are hel d in registration.

xMy invention relates more particularly to headers'or steam collectors for use, pri-s marily, in connection with steam supersaid pipes being connected to a header di vided xinto compartments, into certain ot' to one cylinder valve chestand the other heaters of the typewhereinthe superheater elements "or pipes are arranged in 'the fire tubes ;or flues of aiboiler so that they will be heated by the gases or combustion, the

which compart1nents1the saturated steam enters, and thence flows through the pipes into the other compartments of the header.

' The principal objectofmy invention is to provide an improved construction of header of the above type. f k

In' the accompanying drawings -:Figurc l is an elevation, partly in section, of one form of header vaccordlng lLO tllIS mvention having seven transverse compartments and arranged, for 18 "superheater elements or pipes; Fig 2 is a plan partly. inrsection of the header shown in Fig. 11, and Fig. 3

isa cross section of the header taken on the lines A'TB Figs. 1 and 2, looking in the di'- rection of the arrows.

or half of the headerfeeds the steam pipe The header accord ing to the above figures is such that one side side or" half of the header feeds ithe steam Patented seam, 1 4- pip'eto the other'cylindervalve chest. -Figs.

other, so that if for any causeone cylinder' at any particular time requires more steam thanthe :other cylinder superheated steam i iirom'v thatside of the header whose cylinder requires the lesser amount I of steam may ,p'assto that'side'ofthe header whose cylinder requires the greater amount ofsteam and thus balance the steam supply to both cylinders- Fig. 6 is a sectional eleva tion ofthe header shown in Figs. 4: and 5, itaken on the line CDFig. 5 and looking in the direction of the arrow, and Fig. 7

I is a sectional.elevationot the headers shown in Figs. 1 to 6, taken on' the lines E F Figs; 1, 2, 4L and 5 and looking in the direction of the arrow the removablefront coverslbeingomitted.

Referring to the drawings, the box or casing which forms the'header consists of, or is divided by interior walls or partitions into a number of compartments arranged transversely of the greatest: length of the header, the" alternate compartments being saturated and superheated steam compartments, compartments 1, 3, 5 and 7 being for superheated'steam;and compartments "2, 2*,

4, Sand -6 *being for saturatedisteam. 1 7 8 is a tubular boss at the reargof and com- *municating-W'ith compartment 4, having a flange 9vfor connecting the pipe conveying the saturated steam from the steam space of the boiler to theheader, and 10, 1 1 are fiangesfor connecting to itheheader at com- 1 partm'ents 1 and?? thesteam pipes 12,1 13 respectively, conveying the superheated steam fromxthe. header to the valve chestsi of the engine 1 1 cylinders, 14 being screw'-' threaded studs or dowels :fixedly mounted' in themetal of the headeruandilfi'nuts co-- operating with. said studs br -dowels by" which studs and nuts'said flanges 10, 11 ,iare

flanges 10, 11 are secured may be thicker.

than at other places, and said thickening 5 may be external (as shown in Figs.2 and 5) or internal. I

Compartments 1, 2, 3, 4', 5, 6 and 7 are formed open at the front, and compartments 2, 3, 4L, 5 and 6 are adapted to be closed 10 by. a ,cover plate 16 removably secured or held in position by nuts 17 screwed on to threaded studs or dowels 18 fixedly mounted in metal at the front of the headerbody or casting. The front, faces or edges of the various walls ofthe header with which said plate or cover 16 contacts maybe, and preferably are suitably thickened out or flanged to provide better Ointing faces or surfaces. The faces of the front wall with which the 20 cover 16" and flanges 1O, 11 contact are machined true and smooth. If desired instead of the cover 16 and flanges 10, 11 actually contacting with the front wall of the header suitable joint making material may be placed between them and said wall, such for instance as copper wire gauze. I

22 are lugs which may be provided at the ends of the header. and by which it maybe secured to suitable brackets in the smoke box, and 24 are strengthening webs of metal that may be provided if thought desirable at suitable places on the header. The ends 20, 21 of the superheating pipes or. elements are expanded directly into holes drilled or 5 otherwise provided therefor in the bottom a wall 25 ofthe header which thus constitutes a tube plate. The tube plate 25 forms the bottom or lower wall of all'the transverse compartments of the header, and the bottom 40 of the compartments being all at the same level the tube plate 25 is thus in effect a flat straight plate. The several saturated steam compartments of the header are connected to one another by ports orv passages 26, 27 in the header.

In Figs. lto 7 inc sages 26, 27 are arranged in or at the top of the box or casting forming the header and pass over or above the superheated steam compartments 3 and 5 respectively so as to place saturated steam compartments 2 and 6 in communication with. compartment 4 and therefore with one another. U

The superheater steam compartments 1 and 3 are connected to one another by a port or passage 28. and the superheater steam compartments 5 and 7 are connected to one another by a. port or'passage 29. In the headers shown inFigsal to 7 inclusive the ports or'passages 28,29 arelocated in or atthe back or rearof the box or casting forming the header and behindthe saturated steam compartments :2 and 6 respectively.

The superheated steam compartments 3 and 6 5 are also connected, or placed in communi- .side

usive these ports or pas cation, with one another by means of a port or passage 30 and all the superheated steam compartments are thereby connected or placed in communication. In the header shown in Figs. 4 to 7 the said port or passage 30 is located in the removable front cover 16' and thus passes in front of saturated steam compartment 4:.

The open ends of the'port or passage 30 formed or provided in the removable front cover 16 of the header come opposite or register with the openings at the front of superheated steam compartments 3 and 5 when the said cover 16 is placed in position, and the back wall or bridge piece 31 of the passage 30 in the cover comes in front of and closes the opening'at the front of saturated steam compartment 4.

It will further be seen that the ends of the superheater elements or pipes can, with a header according to this invention, be readily expanded in their holes in the'tube plate of the header by means of a suitabletool insertedthrough the openings of the several compartments after the front cover plate 16 has, been removed. The superheater elementsor pipes-can also be readily driven out by a suitable tool. or ap liance inserted through such openings, the orm and dimensions of the said compartments being suitable for these purposes. I

What I claim as my invention and desire to secure by Letters Patent is V '1'. In a superheater, the combination, with superheater elements; of a header provided with'integrally-formed transverse and longitudinal partitions which divide it into .compartments and longitudinal steam passages, said compartments comprising chambers for saturated steam and chambers for superheated steam arranged alternately and side by one of the said passages being arranged at the top of the header and connecting the chambers of one series, and the other passages being arranged at the back of the 11 header and connecting the chambers of the other series, and all the chambers having hand-openings at their front sides and havingjthe superheater elements connected to their bottom sides;and removable covering 1 means for closing the said hand-openings.

2. In a superheater, the combination, with superheater elements; of a header provided with integrally-formed transverse and longitudinal steam passages, said compartments comprising chambers for saturated steam and chambers for superheated steam arranged alternately and side by side, one of the said passages being arranged at the top of the header and-connecting the chambers 1 of one series, and the other passages being arranged at. the back of the headerand connecting the chambers of the other series, and all the chambers having hand-openings at their front sides and having the superheater elements connected to their bottom sides; In testimon whereofl aflix my signature,

and removable covering means for closing in presence 0 two witnesses. the said'hand-opemngs, said covering means being provided with a longitudinal steam JOHN, GEORGE RQBINSONf passage which forms a supplementary com- Witnesses:

munication between certain of the similar G. B; SMITH.

steam chambers of one series. W. H. LINSON. t

Copies of this patentmay be obtained for five cents each, by. addressing the @(lommissioizr of latents, a T washingtem n c. i

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