US1449841A - Furnace front - Google Patents

Description

5 sheets-sheet l J. REID FURNACE FRONT Filed S'pt.

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Mar. 27, 1923.`

INVENroR foo/wm ATTORNEY Mar. 27, l 923'.

1,449,841 J. REID FURNACE FRONT Filed Sept. 3, 1920 5 sheets-sheeb 2 f' AIToRAz'Y Mar. 27, 1923. 1,449,841

J. REID FURNACE FRONT Filed Sept. 5, 1920 5 sheets-sheet 5 INvEN'ljoR w u v @NN 97 M Q v 1 ma wm 0 2 9 m l, o D m s m F t. R w d nm J num d F n i. ww. m 1-x mm, 1 1--- 7, 2 Nod L a mn M I @.m

Mar. 27, T923.

J. REID FURNACE FRONT Filed Sept. 3, -1920 5, slge'-ts-sheet 5 3"//4/ /l/v/ ATTORMFY Patented Mar. 27,

JOHN REID, or NEW YORK, N. Y.'

FURNACE FRONT.

Application led September 3, 192.0. Serial No. 40.8925.

To all whom it may concer/n Be it known that I, JoHN Rnm, a subject of the King of Great Britain, and residing at 30 Church Street, in the city of New York, in the State of New York, in the United States of America, have invented new and useful Furnace l `ronts, of which the following is the specification.

The invention relates to oil burning furnace fronts, as described in the present specification and illustrated in the accompanying drawings, that form part of the same.

The invention consists essentially of the novel construction and arrangement of the parts pertaining to the direction of the air to the flame, whereby the deflection of the forced draft of air insures a steady accumulative and circumferential rush of air to the flame l ,at a desirable distance from the burner.

The objects of the invention are to produce an eminently satisfactory mixture by the introduction of air and its accompanying gases in such quantities and in such atmospheric surroundings as will insure a ready combustion of the combined oil vapor and air to deliver in the firebox area the heating gases of such intensity that the steam generating properties of the furnace shall be immensely improved compared to the ordinary air feed; to simplify the assemblage and the installation of furnace fronts and readily remove and replace the parts and also effect quick repairs, which is particularly desirable in marine work, as veXatious delays are minimized especially at sea; to maintain a maximum steam pressure constantly during the steaming period; and generally to provide facilities and eiciency in oil burning furnace fronts.

In the drawings, Figure 1 is a front elevation of the back plate. showing the intermediate walls and the flame opening and deflecting ring in section, and the lcone de flector.

Figure 2 is a vertical sectional view on the complete front illustrated in Figure 1.

F1 re 3 is an elevation of the back plate showing the parts of the intermediate Walls projecting therefrom, and a modification of the air directing parts. .f

Figure f1 isa vertical sectional view the complete front illustrated in Figure 3.

Figure 5 is an elevation of the front plate and a frame and closure to provide easy access to the parts for repairs.

Figure 6 is a vertical sectional view, showing the. complete front illustrated in Figure 5 and a further modification of the air directing arts.

Figure 'gis an elevation of the front plate and a form of closure plate adapted to this invention. i

FigureS is a vertical sectional view of the complete front illustrated in Figure 7, showing a further modification of the air directing parts.

Figure 9 is an elevation of, the back plate showing intermediatel parts in section and a further modification of the air directing parts.

Figure 10 is a vertical sectional View of the complete front in the form illustrated in Figure 9.

Figure 11 is a perspective detail Yof the preferred form of cone deflector.

' Like numerals of reference indicate the same parts in the several forms of the in-y vention respectively.

It has been found desirable in oil burning for the purpose of generating steam to ascertain both the mostv efficient and most economical manner of utilizing the air to effect a rarity in the heating gases, that will eliminate the carbon'inefficiences an will insure complete combustion of the oxygen gases in their fresh and unadulterated condition, and to do this the direction of the streams of air is the 'main' considered and while there may be many opinions as to the manner and place in making of the mixture, it is undoubtedly agreed upon unanimously, should be constant and concentrated in relation to the flame, and this invention clearly demonstrates that the flame is enveloped in 'an annular stream of air, which associates itself with the flame in combustion and produces intense heating gases throughout the `most desirable areas of the firebox and in direct contact with the heating surfaces of the water containing members, and further the elements that make it possible to reach this result are so arranged as to be readily accessible vas pointed out hereinbefore.

Referring to the drawings and particu-- larly to Figures 1 and 2, the back plate 1 is formed with a flame opening 2 in which vthe deflecting ring 3 is mounted. This deflecting ring 3 is formed ofthe cylindrical section 4 extending into the air pocket of point to be that the stream of air the front, the inwardly inclined section 5 defiecting the air to the iiame and the outer flange 6 abutting the back plate 1.

The front plate 7 is formed with the opening 8 closed by the closure plate 9 having an access opening closed by the door 1() and carrying the oil pipe sleeve 11.

rlhe burner deflector 12 is mounted at the inner end of the sleeve 11, and is formed with the plate portion 13 extending from the hub 14 and having the air ports 15 and the flaring portion 16 projecting from the rim of the plate portion 13.

The cone deflector 17 encircles the burner defiector 12 and extends from the base plate 18, mounted on the oil pipe sleeve 11, to the cylindrical portion of the deflecting ring 3, and between said base plate 18 and deiecting plate 3, the arc-shaped ports 19 are made in the'wall of the cone deflector and these with the end ports 19a form the air ingress openings to the flame. This cone deflector 17 is shown as part with the deflecting ring 3, though it may be, separate therefrom.

The air pocket between the front plate 7 and back plate 1 is here shown as formed by the upper shield wall 2O having a central air port closed by the valve 21 and the lower flare wall 22 joined to the upper shield wall 20 by the valves 23, but many different arrangements of pocket enclosures may be made. v A

In Figures 3 and 4 a most effective construction is shown, particularly in regard to repairs, replacements and conversion, and in this form of the invention the back plate 24 is formed with a flame `opening 25, in which the deflecting ring 26 is mounted. This deflecting ring 26 being formed with the inwardly inclined portion 27 directing the air to the ame and the depressed end 28 meeting the cone deiector 29 having the air ports 30 circumferentially spaced therearound, said cone deflector 29 preferably forming part with the ring 26, though it may be bolted thereto. The. ring 26 is formed with the lugs 31 and through these lugs it is secured by the bolts 32 and nuts 33 to the plates 34 and 35, the upper plate 34 being split centrally into two parts held together through the lugs 36 and 37 by the bolts 38 and nuts 39, the lower plate 35 being split centrally and held together through the anges 40 and 41 by the bolts 42 and nuts 43 and held to the back plate by the bolts 44.

The upper shield wall 45 having a central air port closed by the valve 46 is secured to the back plate by the bolts 47 through the lugs 48 and the bolts 49 through the lugs 50, the latter extending over and forming a fastening for the parts of the upper plate 34.

The are wall 51 is secured to the back plate 24 through the lugs 52by the bolts 53 and projects fromsaid back plate 24 near the edge thereof around thc lower portion.

Corresponding parts of the shield wall and flare wall project from the front plate 54 to meet the shield wall 45 and flare wall 51 and are similarly removable therefrom, and it would only be repetition to describe them in detail herein.

rlhe valves 55 close the openings between the flare wall portions and shield wall portions and .complete the air pocket between the back plate 24 and front plate 54.

An opening in the front plate 54 is covered by the closure plate 56, which has an access opening closedl by the door 57, and lugs 58 carrying the lower draft door 59.

The oil pipe sleeve 6() is supported by the closure plate 56 and this sleeve supports the burner deflector 61 having the air ports 62 and the vanes 63 projecting rearwardly therefrom. Except the brick Work 64, which is centrally formed as a Venturi ring 65 to continue the concentration of the air to the flame, the front in this modification of the invention is complete and it will readily be understood that all the parts can be removed leaving the front and back plates for use, say for coal if required, and though this is essentially an oil burning front, it must not bc lost sight of that the removal of parts facilitates the renewal of one or other of the pieces, and if the roil equipment is removed then coal parts could readily take the place of the oil parts, thus in transference of locations in trading steamships, this would prove of great convenience.

In Figures 5 and 6 one of the chief characteristics of the modification is in the frame' 66 surrounding and partially closing a large access opening in the front plate 67.

The closure plate 68 supports the door 69, which closes an upper opening therethrough and has a view window 70 and access opening 71 closed by the shutter 72. The lower draft door 73 is suspended from the lugs 74 projecting from the lower portion of the closure plate 68 and completes the front plate wall of the air pocket.

The back plate 75 is distanced from the front plate 67 by the intermediate walls shown in an upper shield wall 76 and a lower Hare wall 77, in front and rear sections preferably bolted to the front and back plates.

. The oil pipe sleeve 78 is supported in the closure plate 68 and the burner deflector 79 is supported at the inner end of the sleeve 78, and this is encircled by the outer cone deflector 79 having inner vanes 80 and outer vanes 81, the latter meeting or nearly meeting the deflecting ring 82 mounted in the flame opening of the back plate 75.

This form is only a variation of the forms described, but under some conditions is very eiiicient in use.

tween t In Figures 7 and 8 the changes are confined to the closure plate 83, which is slipped under the bolt heads 81 and secured through the lugs 85 by the bolts 86 to the front plate 87 The accessdoor '88 closes a corresponding opening in the plate 83 above the open# ing for the oil pipe sleeve 89, which carries at its end the burner deflector` 90.

The outer cone deflector 91 encircles the burner deflector, and is ,formed with outer vanes 92, which project within the deflect ing ring 93, the latter being made with the cylindrical portion 94 and the inwardly inclined portion 95. The vanes 92 are squared 0H at both ends 96 and 97, which spaces the cone from the ring 93 and allows space for the passage of air tothe flame. A quantity of air ,alsor enters the back of t-he cone and is directed by the burner deflector 90` |The lower draft door 98 is hung from the front plate 87 above the lower opening and closing the same. c The plocket is here shown as formed bee front plate 87 and back plate 99 by the intermediate walls 100 and 101 and the central valve 102, and side valves 103, though many other satisfactory arrangements may be made, and these walls may be removable or fixed as desired.

The advantage of this form of the invention'is mainly in the simplicity of the parts, the good air direction and the facility offered in the removal ofthe closure plate 83 for repairs or for the conversion of the front for coal burning purposes.

The brickwork 104 completes this front and in conversion this is preferably all removed.

In Figures 9 and 1() a cylindricalair de-l flector 105 is shown having the vanes 106 projecting from the inner wall 111, preferably in an inclined direction from the diameter of the circle representing the cylinderand longitudinally waved or curved if 'as those found desirable.

'- This cylinder meets the deflecting ring 107 mounted in the flame opening of the back p-late 108. This ring 107 is much the same hereinbefore described, and with the cylinder extends towards the front plate 109 and closure plate 110, otherwise this modification of. the invention shows but little difference from the other forms described.

In Figure 11, thefirst cone deflector described herein is shown clearly in order to illustrate effectively the invention and its relation to the deflecting ring, which continues through-in every modification.

It must be understood that the constructions herein described are not arbitrary regarding the details of the several means employed for directing the air, as many minr changes may be made without departing from the spirit of the-invention and which will bc included within thescope of the invention as set forth in terms in the claims for novelty following.

lVhat l claim isz'- 1. In an oil burning furnace front of the type having front and back plates and intei-mediate walls forming an air pocket and a flame opening in said back plate, a deflecting ring having a cylindrical portion mounted in said flame opening and a conical'portion which flares towards the back plate from the front plate and which has spirally shaped ports extending practically the full length of the conical portion.

2. In an oil burning furnace of the type having front and back plates and intermediate' walls .forming an air pocket and a lflame opening in said back plate, a deflecting ring having a cylindrical portion mountclined portion for directing the air to the flame and a flange abutting the back plate,

'and a conical portion flaring towards said ring from the frontplate and formed with spirally shaped ports extending practically full length thereof.

In an oil burning furnace front of the type having front'and back plates and intermediate walls forming an air pocket and aI flame opening in said back plate, a deflecting ring having lugs projecting therefrom and inwardly inclined in the direction of the flame and formed with separated ports extending for the greater part of its length, plates forming a cover on the back plate above said ring and secured thereto and centrally joined through projectin lugs, shield wall portions on front and bac r plates and having lugs therefrom bolted to said front and back plates and lugs holding said cover plates, a cover plate below said ring on the back plate centrally split and bolted and having-.lugs and bolts securingit to the back plate and to said ring, a closure plate carrying4 the oil burning members, an inner de- 110 flector, and alower draft door.

4. In an oil burning furnace front of the type having'front and back plates and intermediate walls forming 'an air pocket and a flame opening in said bac-k plate, an ain deflectinsf ring mounted in said flame opening, and inwardly inclined to direct the air to the flame, a frame surrounding and partially closing and opening in the front plate, a closure plate mounted in said frame, oil 120 burning' members carried by said plate, a conical casing extending from said plate towards the airdeflecting ring, hinge lugs at the lower end of said plate and a lower draft door secured to said hinge lugs. l

5. vIn an oil burning furnace front of the type having front andA back plates and intermediate walls forming an air pocket and a flame opening in said back plate, an air deflecting ring mounted in said flame opening 130 and inwardly inclined t0 direct the air t0 the flame, n frame surrounding an opening in the front plate, u closure plate in said frame, an oil burning' member extendingr therethrough, an air directing member extending from said plate tovards the air delecting ring, a natural draft door closing an opening in said closure plate, said draft door liu-ving View and access openings therein, and a lower draft door hung on to said clol0 sure plate.

Signed at the City of London, lrngland, this tenth dayV of August 1920.

JUHN REID.

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