US1312801A

US1312801A - Heater oe boileb

Info

Publication number: US1312801A
Authority: US
Publication date: 1919-08-12
Anticipated expiration: 1936-08-12

Description

A. H. Momow. HEATER 0R BlLER.

AP-PLICATION FILED OCT. 9, 1914.

0u m. 1.... 27H ...1wL w@ 4 um AH mw )m2 a D1 A. H. MORROW.

HEATER 0R BOILER.

APPLICATION FILED ocT.9. 1914.

1,312,801. I Patented Aug. 12,1919.

I 2SHEETS-SHEET L INVENTOR erratas@ rara ernten.

ALEXANDER n. iuonnowjor rrr'rsBURe-H, PnNNsYLvAmA.

HEATER OR BOILER.

vented a new and useful Improvement Heaters or Boilers, of which the following.

is a full, clear, and'exact description, reference being had to the accompanying. drawings', forming part of this .spec1icat1on, 1n which Figure l is a vertical section taken on the line -l of Figs. 2' and 3;

Fig. 2 is a horizontal section taken on the line -H of Fig. 1;

Fig. Sis a vertical section .taken on the line lll-IH of Fig. 1;

Fig. 4 isa perspective view of one of the Aintermediate heater sections; and

Fig.V 5 is a detail sectional view of the lower nipple connection.

My invention has relation to heaters or boilers ofthe sectional type, and winch employ a duid fuel, such as gas o r oil. The object of my invention is to provlde a heater or boiler of this general character, 1n which the sections are so constructed and related to each other as to provide not only for a maximum heating area, but also .for a highly eilicient and economical application of the' fuel to heating surfaces and circula tion of the products of combustion.

The nature of my invention will be best understood by reference to the accompanying drawings, in which I have shown a preferred embodiment, it being premised, however, that various changes may be made 1n the details of construction and arrangement of the parts, Without departing from the spirit and scope of my invention as defined in the appended claims.

In these drawings, I have shown a heater or boiler composed of two end sectlonsor units, and three intermediate sectlons or units; but it will be understood that the number of intermediate units may be varied according to the size and'c'apacity of the heater.

The end sections or units'2 and 3 are counterparts, except that they are rights 'and lefts, each of them being in theform of a casting having a hollow web with 'a fiat outer vertical face, formingl one of the exeach section being Aformed ternal walls of the heater the inner face of with alternating 'hollowprojections 4 and recess portions 5.

Speccation of Letters Patent.

Patenten aeg. ia, ieee..

Application filed October 9, 1914. Serial No. 865,910.

The intermediate sections or units 6 are.

preferably all counterparts, each of them having a hollow central vertical web'and their vertical faces formed with hollow horizontal alternating projecting portions 7, and recess portions 8, which are of generally similar form to those of the inner faces 'of the end sections. The recess and projecting portions of the intermediate units are, however, staggered with relation to the corresponding portions of the end sections and to the corresponding portions of the opposed surfaces of .adjacent intermediate sections, so that when the Sections are assembled, the projections of all of the sections will be in intercalated relation with the -rcessportions of adjacent sections. Eachunit is also provided at one end with a vertical header 7a which communicates with. the hollow web and the horizontal projecting portions, the headers ofthe units forming the back of the boiler. The units are also each provided with a horizontal header ,7b which form the top of the boiler. All of the sections are preferably provided at the base with abutting flanges 9 and at their upper portions with -abutting ianges l0. Each section is also formed at the lower end of the header with a tubular seat 1l,

to receive a connecting nipple l2. Thesetubular portions and nipples form a continuous water space, which communicates with thehollow interior of each of the units. Above the abutting ianges 10, the horizontal header 7" of each section has a centrally arranged nipple seat 13, these seats receiving the connecting nipples 14, which form a continuouswater or steam chamber- 15 at the top of the structure. 16 designates two return connections which communicate with the continuous water space, and 1'2"4 designates. outlet connections from the s ace l5 for the heated water or steam. O, Viously, however, I vmay employ but one intake and oii'take connection or any desired number of these connections. f' As will be readily understood from the drawings, when the sections or units are assembled, they form a plurality of adjacent vertical water legs connected at top and bottom, and each of themseparated by a tortuous passage from the opposing surface of an adjacent section or sections. These tortuous passages are for the flames and other products of combustion from the burners 18 which extend within the lower portions of the fuel, this may be supplied by a pipe i9, having a plurality of branches 20, leading into the lower portion ci each of the saidtortuous passages through openings 21, formed in the bottom iianges 9 oi the sections. Each branch 20 has a plurality of burners, branched at their ends, ,as shown at 22. Each branch 22 is preferably arranged to directa larne against an upwardly converging surface 23 of the lower portion oit an adjacent unit. rl`hese upwardly converging surfaces define the main combustion chamber portions of the tortuous passage and also form contracted lower portions ot the water legs. Some of the burners may be connected to a separate gas supply pipe 19 to act as pilots.

By this construction, a comparatively large combustion area is provided, while at the same time the lower portions of the water legs, which contain the colder water, are so contracted as to contain at those portions only a relatively small volume. Above the upwardly converging surfaces' 23, the tortuous passages are preferably of substantially equal cross sectional area. Preferably the projecting portions of the sections are made long enough so that they project beyond the joints between adjacent sections and form a positive overlap which increases the tortuosity of the passages. It will be noted that the hollow projections of the sec- .tions have the inner and outer surfaces of their upper and lower walls sloped in a converging direction. vThis is a feature of importance for several reasons. ln the first place it greatly facilitates the upward circulation of the water in the sections, since it prevents any pocketing of hot water or steam such as would occur if these surfaces were horizontal. ln the second place it greatly facilitates the dislodgment of any soot or other products of combustion which may stick upon the upper and outer surfaces of said projections. Furthermore, it enables the sections to be readily cast, the slope of the projection being sufficient to give proper draft in molding.

The abutting lianges 10 form the top of these tortuous passages, but are out away vertically at the front end of the heater, as shown at 24 in Figs. 253, and 4:, to provide filles through which the products of oombustion pass upwardly between the webs of the units into the upper chamber 25 below the horizontal headers. This chamber 25 is a continuous chamber except for the connections 26 which connect the horizontal headers to the webs of the units and which extend therethrough and are completely surrounded, by said chamber. rlhe vertical header of one or more ot the sections are out away at the back to provide the outlet 27, which leads into the smoke box 28. This asiatici joint at 30, and the outer section 28"i being reversible so that its offtake connection 31 may be directed either vertically, as shown in full lines in Fig. 3, or horizontally, as shown in dotted llnes in said figure. 32 designates doors by means of which access may be had to the burners, the chamber 25 and the ues between the headers.- 'lhese doors are preferably provided with peep holes 33, having closures 34 of mica or other suitable material.

My invention provides a heater or boiler which is simple in its construction, the sections or units being of a form which can readily be cast and also capable of being readily assembled. The shape of the sections or units, whereby tortuous passages for the products of combustion are provided not only increases the vertical distance through which such products of -combustion must.

travel before escaping, but also largely increases the heating area of the sections directly exposed to the action of such products. This makes a very economical heater o1' boiler, in which a maximum heating et'- ect1 can be obtained with a minimum of It will be obvious that instead of the speciic arrangement of burners which l have have shown and described, various other :torms and arrangements of burners may be used; that the shape of the tortuous passages may be widely varied, and that other changes may be made within the scope oi the appended claims.

l claim: j l. A section or unit for'sectional heaters or boilers, comprising a hollow vertical web portion formed at each of its vertical sides with hollow projections extending horizontally of the section from front to rear, some of the projections on the two sides being staggered with respect to each other, and the staggered projections having their upper, inner and outer surfaces sloped downwardly and outwardly and ,the lower inner and outer surfaces thereof. being sloped upwardly and outwardly, said sec/tions also having other horizontal projections, one on each side, above the staggered projections and which are horizontally opposite each other, each of said other projections having a vertical opening therethrough near the front edGe of the section; substantially as -describet 2. A sectional heater or boiler, compris ing a plurality of spaced hollow `projections or units which extend from the back to the front of the heater, each of said units having a hollow vertical web portion formed on both sides with hollow projections which eX- tend horizontallyfrom front to rear, some of the projections of each section being staggered with respect to adjacent projections, and each upper projection being abutted against the corresponding projection of an adjacent section, said abutting projections closing the upper portions of the Hue spaces between adjacent sections and forming horizontal Hues leading from the front to the back of the heater, the abutting projections having vertical Hue openings therethrough near the front of the'heater, the projections also having rearwardly extending Hue spaces above the abutting projections and with which said openings communicate, and a stack connection with which said Hue s aces communicate at their rear ends; subs antially as described.

3. A sectional heater or boiler, comprising a plurality of spaced hollow projections or units which extend from the back to the front of the heater, each of-said units having a hollow vertical web portion formed on both sides with hollow projections which extend horizontally from front to rear, some of the projections of each section being staggered with respect to adjacent projections, and each upper projection being abutted against the corresponding projection of an adjacent section, said abutting projections closing the upper portions of the Hue spaces between adjacent sections and forming horizontal Hues leading from the front to the back of the heater, the abutting projections having vertical Hue openings therethrough near the front of the heater,

- the projections also having rearwardly extending Hue spaces above the abutting projections and with which said openings communicate, and a stack connection withwhich said Hue spaces communicatev at their rear ends, said projections having their upper surfaces lsloped downwardly and their lower faces sloped upwardly; substantially as described.

4. A sectional heater or boiler, comprising a plurality of spaced hollow projections or units which extend from the back to the front of the heater, each of said units having a hollow vertical webportion formed on both sides with hollow projections which extend horizontally from front to rear, some of the projections of each section being staggered with respect to adjacent projections, and each upper projection being abutted against the corresponding projection of an adjacent section, said abutting projections closing the upper portions of the Hue spaces between adjacent sections and forming horizontal Hues leading from the front to the back of the heater, the abutting projections having vertical Hue openings therethrough near the front of the heater, the projections also having rearwardly ex-` tending Hue spaces Iabove the abutting pro- Y jections land with which said openings coinmunicate, and a stack connection with which said Hue spaces communicate at their rear ends, said projections having their upper surfaces sloped downwardly and theirlower faces sloped upwardly, and each of said sections being narrowed at its lower portion, thereby forming between their lower portions enlarged combustion chambers at the lower portions of the Hue spaces between the sections, and gas burners extending into said chambers; substantially as described.

`5. A heater or boiler comprising end sections and intermediate sections, there being circulating connections 'between said sec? tions as well as inlet and outlet connections, each of said sections having a hollowvertical header and a hollow vertical web comf municating at one end with the header, one side of the web of each of the end sections being provided with hollow horizontal projections extending from one end of the section to the header, the intermediate sections having hollow projections on each side of its web extending from one end to the header, the hollow projections on the one section being staggered with relation to the projections on the other section to form cir- ALEXANDER H. MoRRow.

Witnesses: j

GEO. B. BLEMING, Gro. H. PARMELEE.

cuitous passages between the sections which