US2037496A - Furnace - Google Patents

Description

April 14, 1936. Q B T 2,037,496

FURNACE Filed Nov. 14, 1950 2 Sheets-Sheet 1 Charla s 'L-Br mt' LNVLNTGK April14, 1936. c. BRYANT FURNACE Fi led Nov.

'2 Sheets-Sheet 2 Brsant LN VLN'TQR [M/ ATTORNLj Patented Apr. 14, 1936 UNITED STATES FURNACE Charles L. Bryant, Cleveland, Ohio, assignor to C. L. Bryant Corporation, Cleveland, Ohio, a

corporation of Ohio Application November 14, 1930, Serial No. 495,689

32 Claims.

This invention relates to furnaces and has for an object the provision of a new and improved structure of this type.

In the drawings accompanying this specification and forming part of this application I have shown, for purposes of illustration, one form which my invention may assume, and in these drawings:

Figure 1 is a vertical sectional view, partially in elevation, showing an embodiment of the invention,

Figure 2 is a horizontal sectional view corresponding substantially to the line 2-2 of Figure 1,

Figure 3 is a horizontal sectional view corresponding substantially to the line 3-3 of Figure 1, while Figure 4 is a horizontal sectional view corresponding substantially to the line 4--4 of Figure 1.

The embodiment herein described comprises a furnace which may have an angular ash pit l and an annular fire-box shown as broken away at the top, and an interior annular shoulder l2 disposed adjacent the point of juncture between the ash pit Ill and fire-box Extending into the ash pit in is a gas supply pipe l3 connected by an elbow M to an upstanding pipe section I5, the upper end of the latter being connected with a burner assembly IS. The burner assembly l6 comprises a central section l'l into which the upper end of the pipe I is threaded, and provides a chamber l8 into which said pipe section l5 discharges, having nozzles |9 opening radially outwardly through said central section; and formed integrally with the central section I! is an annular hub section having a horizontal wall 20, depending wall 2|, and bottom wall 22, the walls 20, 2|, and 22 defining a mixing chamber 23, and the bottom wall 22 provided with radially disposed openings 24 adapted to be varied in size by a valve shutter 25 rotatably supported at the lower end of the central section l1, and operable to regulate the supply of air to the mixing chamber 23.

The annular depending wall H is circumferentially provided at intervals with apertures for the reception of a plurality of conduit tubes 26, each reduced as at 21 and flared as at 28, arranged in line with, though spaced from, a related nozzle l9, secured in position by a screw 29, upturned at its outer end as at 30, each carrying a segmental burner section 3|, having outlet orifices 32 and provided with a tongue 33 at one end and a recess 34 at the opposite end adapted tegrally formed, intermediate section 45, the secto relatively loosely interengage with similar formations of a related burner section 3|; the burner sections 3| when assembled assume an annular formation disposed adjacent to, though spaced from, the enclosing annular wall of the fire-box and adapted to be ignited by pilot burners 35. The diameter of the annular formation defined by the segmental burner sections 3| may be increased where desired, merely by loosening the screws 29 which secure the tubes 26, and moving the tubes 26 outwardly with respect to the wall 2|, the tongues 33 and corresponding recesses 34 of the burner sections 3| moving circumferentially to permit expansion in size. Whenever the burner sections 3| are so adjusted it is desirable to substitute for the nozzles I9 other nozzles of a similar type though of greater length, thus to preserve the spacing between the outlet of each nozzle and the inlet of an adjacent tube 26, this spacing being of importance in obtaining the most eflicient mixture of air and gas during operation of the burner.

The depending wall 2| of the mixing chamber 23 adjacent its lower edge is provided with a radially extending flange 36 forming a support for the tubes 26, as at 31, and at its outer edge has fixedly secured thereto an annular extension 38 of such size as to fit beneath the annular shoulder I2 of the furnace, provided with apertures 39 at intervals to permit passage of secondary air to the burners 3|, and is held in position by an adjustable jack 40 connected to the elbow M, the latter also supporting the entire burner assembly |6 in position.

Detachably supported by the burner assembly I 6 are means cooperating with the enclosing wall of the fire-box to provide a passage 4| for the heat energy generated by the burner assembly I 6, said means comprising a plurality of deflectors 42, arranged in annular formation, each elongated, of suitable width, relatively thin in crosssection, of metallic material, preferably cast iron, having opposite end sections 43 and 44, longitudinally offset and connected by an inclined intion 43 having an angularly arranged foot 46 adapted to rest upon an adjacent burner tube 26, and the section 44 having a plurality of projecting lugs 41 on its outer face adapted to rest against the adjacent surface of the enclosing Wall of the fire-box said lugs being staggered in position, operating to space the sections 44 from the wall of the fire-box II to define a relatively restricted portion 48 of the passage 4|, and also operating as staggered baffles in said restricted portion 43 of the passage 4|. The sections 43 of the deflectors 42 are disposed inwardly of the burner sections 3|, and spaced a greater distance from the enclosing Wall of the fire-box H than the sections 34, and the intermediate sections 45 are arranged so as to provide a combustion chamber of substantial height, beyond which is located the restricted portion 48 of the passage 4|. Along their opposite longitudinal edges the deflectors are rabbeted as at 49 to provide for interengagement of the deflectors, which together form a continuous wall, yet are adjustable to different sizes of fire-box through relative lateral movement of the deflectors as permitted by the width of the interengaging rabbeted' portions.

The burner assembly l6 and deflectors 42 may be readily set up or detached with reference to the furnace shell, it being evident that in order to disassemble the deflectors 42 the same may be lifted from their position through the door of the fire-box H; the burner assembly i6 may be removed by disconnecting the pipe, lowering the jack, and removing the burner assembly as a unit through the ash pit door. Of course assembly is effected by reversing the procedure described.

In operation, and with the pilot lights 35 burning, gas is supplied to the burner assembly l6 through the pipe sections [3 and I5, passing thence to the distributing chamber I3, through the nozzles l9, discharged into the flared ends 28 of the burner tubes 26, during this action passing through the mixing chamber 23 where a sufficient quantity of air is supplied for proper combustion, this quantity of air being capable of regulation through operation of the shutter 25; and in this connection it is particularly pointed out that the air supply for all the burners is regulated through operation of a single means common to all of the burners. The gaseous mixture entering the tubes 25 passes to the burner sections 3|, where it is ignited at intervals by the pilot lights 35, and due to the provision of the interengaged tongue and recess construction of the burners, ignition is quickly effected by one burner from an adjacent burner. Secondary air is supplied to the burners 36 only through the openings 39 in the sealing flange 38, and the amount of secondary air thus supplied depends upon the size and number of openings 39, which may be calculated in advance, and predetermined to effect the best results.

ihe heat energy generated by the burner assembly [6 passes into the passage 4! defined by the deflectors 42 and the adjacent wall of the fire-box l l, passing first int-o the relatively large combustion chamber M where complete combustion is permitted to take place, the heat energy afterward passing upwardly into the restricted portion 48 of the passage 4| where it encounters the staggered baflles provided by the staggered projecting lugs ll, giving up its heat during passage along the wall of the fire-box. Particular attention is directed to the fact that the metallic nature of the deflectors prevents crumbling thereof and avoids any danger of clogging up the apertures of the burners 3! by falling particles, such as might occur if different material were employed.

It will be apparent to those skilled in the art that the described embodiment accomplishes at least the principal object of the invention; it will also be apparent that the invention may be applied to uses and has advantages other than those herein described, and may be variously changed and modified without departing from the spirit of the invention; accordingly it will be understood that the embodiment described is illustrative only and the invention is not limited thereto.

I claim:

1. A furnace comprising: a fire-box having gas burner means extending adjacent its enclosing wall, having a plurality of burners disposed in juxtaposition and overlapping one another in series relation throughout their continuous lengths to effect ignition or" one from another; means for supplying and igniting said burners; and means positioned in said fire-box inwardly of said gas burner means and cooperating with the enclosing wall of said fire-box for directing the heat energy generated by said burner means along the enclosing Wall of said fire-box.

2. A furnace comprising: a fire-box; burner means having a plurality of engaged sections extending adjacent to the enclosing wall of said fire-box, means being provided whereby said engaged sections are rendered circumferentially adjustable with respect to said enclosing wall to conform to fire-boxes of different sizes and continuously connected in adjusted positions; means for supplying and igniting said burner means; and deflecting means positioned in said fire-box cooperating with said enclosing wall to define a passage for directing the heat energy generated by said burner means along the enclosing wall of said fire-box.

3. A furnace comprising: a fire-box having a plurality of burners extending adjacent its enclosing wall, said burners disposed in juxtaposition and overlapping to effect ignition of one from another, and also adjustable with respect to said enclosing wall to conform to fire-boxes of difierent sizes; means for supplying and igniting said burners; and deflecting means positioned in said fire-box cooperating with said enclosing wall to define a passage for directing the heat energy generated by said burners along the enclosing wall of said fire-box.

4. A furnace comprising: a fire-box having a plurality of burners extending adjacent its enclosing wall and including a central mixing cham- A deflecting means positioned in said fire-box cooperating with said enclosing wall to define a passage for directing the heat energy generated by said burners along the enclosing Wall of said fire-box.

5. A furnace comprising: a fire-box having burner means extending adjacent its enclosing wall; deflecting means positioned in said fire-box cooperating With said enclosing Wall to define a passage for directing the heat energy generated by said burner means along the enclosing wall of said fire-box; and means supporting said deflecting means and operable to adjust said deflecting means with respect to said wall to conform to fireboxes of difierent sizes.

6. A furnace comprising: a fire-box having burner means extending adjacent its enclosing wall; deflecting means positioned in said fire-box cooperating with said enclosing wall to define a passage for directing the heat energy generated by said burner means along the enclosing wall of movable to adjust the position of said deflecting said fire-box; and radially movable means for adjusting said .deflecting means with respect to said wall to conform to fire-boxes of different sizes.

7. A furnace comprising: a fire-box having burner means extending adjacent its enclosing wall; deflecting means positioned in said fire-box cooperating with said enclosing wall to define a passage for directing the heat energy generated by said burner means along the enclosing wall of said fire-box, said deflecting means having staggered lugs projecting therefrom for spacing said deflecting means from the wall of said firebox and serving as bailles to the heat energy passing between said deflecting means and said wall; and means for adjusting said deflecting means with respect to said wall to conform to fire-boxes of different sizes.

8. A furnace having: a fire-box having burner means extending adjacent its enclosing wall; deflecting means comprising a plurality of sectional deflectors, each having its longitudinal edges laterally offset, said .deflectors positioned in said fire-box having their lateral offsets overlapped to define an enlarged combustion chamber adjacent said burner means, said deflectors cooperating with said enclosing wall to define a passage for directing the heat energy generated by said burner means along the enclosing wall of said fire-box; and means for adjusting said sectional deflectors with respect to said wall to conform to fire-boxes of different sizes.

9. A furnace comprising: a fire-box having burner means extending adjacent its enclosing wall; means for supporting said burner means whereby the same are rendered adjustable with respect to said enclosing wall to conform to fireboxes of different sizes; means for supplying and igniting said burner means; deflecting means positioned in said fire-box and cooperating with said enclosing wall to define a. passage for directing the heat energy generated by said burner means along the enclosing wall of said fire-box, said deflecting means having staggered lugs projecting therefrom for spacing said deflecting means from the wall of said fire-box and serving as baffles to the heat energy passing between said deflecting means and said Wall.

10. A furnace comprising: a fire-box having a plurality of burners extending adjacent its enclosing wall and including a central mixing chamber common toall of said burners for mixing combustion sustaining air with the fuel supplied to said burners, said burners disposed in juxtaposition and overlapping to effect ignition of one from another; a plurality of burner conduits communicating with said burners and said chamber; means for mounting said burner conduits whereby the same are rendered movable to adjust the position of said burners with respect to said wall to conform to fire-boxes of different sizes; and deflecting means positioned in said fire-box cooperating with said enclosing wall to define a passage for directing the heat energy generated by said burners along the enclosing wall of said fire-box.

11. A furnace comprising: a fire-box having burner means extending adjacent its enclosing wall; burner conduit means for supplying and igniting said burner means; and deflecting means positioned in said fire-box cooperating with said enclosing wall for directing the heat energy generated by said burner means along the enclosing wall of said fire-box; means for mounting said conduit means whereby the same are rendered means with respect to said enclosing wall to conform to fire-boxes of different sizes.

12. A furnace comprising: a fire-box having burner means extending adjacent its enclosing wall; means for mounting said burner means whereby the same are rendered adjustable with respect to said enclosing wall to conform t0= fireboxes of different sizes; deflecting means positioned in said fire-box cooperating with said enclosing wall to define a passage for directing the heat energy generated by said burner means along the enclosing Wall of said fire-box; and means for adjusting said deflecting means with respect to said wall to conform to fire-boxes of different sizes.

13. A furnace comprising: a fire-box having burner means extending adjacent its enclosing wall; means for mounting said burner means whereby the same are rendered adjustable with respect to said enclosing wall to conform to fire boxes of different sizes; means for supplying and igniting said burner means; deflecting means positioned in said fire-box cooperating with said enclosing wall for directing the heat energy generated by said burner means along the enclosing wall of said fire-box, said deflecting means having staggered lugs projecting therefrom for spacing said deflecting means from the wall of said fire-box and serving as baflles to the heat energy passing between said deflecting means and said wall; and means for adjusting said deflecting means with respect to said wall to conform to fire-boxes of different sizes.

14. A furnace comprising: a fire-box having plurality of burners extending adjacent its enclosing wall, said burners disposed in juxtaposition and overlapping to effect ignition of one from another, and also adjustable with respect to said enclosing wall to conform to fire-boxes of different sizes; means for supplying and igniting said burners; deflecting means positioned in said fire-box cooperating with said enclosing wall for directing the heat energy generated by said burners. along the enclosing wall of said fire-box, said deflecting means having staggered lugs projecting therefrom for spacing said deflecting means from the wall of said fire-box and serving as baffles to the heat energy passing between said deflecting means and said wall; and means for adjusting said deflecting means with respect to said wall to conform to fire-boxes of different sizes.

15. A furnace comprising: a fire-box having a plurality of burners extending adjacent its enclosing wall, said burners disposed in juxtaposition and overlapping to effect ignition of one from another, and also adjustable with respect to said enclosing wall; deflecting means comprising a plurality of sectional deflectors, each having its longitudinal edges laterally offset, said deflectors positioned in said fire-box having their lateral offsets overlapping to define an enlarged combustion chamber cooperating with said enclosing wall to define a passage for directing the heat energy generated by said burners along the enclosing wall of said fire-box; and means for adjusting said sectional deflectors with respect to said walls.

16. A furnace comprising: a fire-box; burner means having a plurality of engaged sections extending adjacent the enclosing wall of said fire-box; burner conduit means for supplying and igniting said burner means; means for mounting saidburner conduit means whereby to render the same movable to adjust the position of said engaged. sections. with respect to saidv enclosing: wall to conform to fire-boxes of different sizes; and means positioned in said fire-box cooperating with said enclosing wall to define a. passage for directing the heat. energy generated by said. burner means along the enclosing wall of said fire-box.

17. A furnace comprising: a fire-box having burner means extending adjacent itsenclosing wall; deflecting means positioned in said firebox cooperating with said enclosing Wall to define a passage for directing the heat energy generated. by said burner means along the enclosing wall of said fire-box; and means for mounting said burner and deflecting means whereby the same are rendered simultaneously adjustable with respect to said enclosing wall to conform to fireboxes of different sizes.

18. A furnace comprising: a fire-box; burner means having a plurality of engaged sections extending adjacent to the enclosing wall of said fire-box, means being provided whereby said engaged sections are rendered circumferentially adjustable with respect to said enclosing wall to conform to fire-boxes of different sizes and continuously connected in adjusted positions; and means effective to permit said adjustment and for maintaining said burner means in adjusted position.

19. A furnace comprising: a fire-box having burner means including a central mixing chamber; means for supplying secondary air to said burner means, in predetermined quantities independent of said central mixing chamber; and a single valve, independent of said secondary air means, for regulating the amount of air supplied tosaid central mixing chamber.

26. A furnace comprising: a fire-box having burner means extending adjacent its enclosing wall; and deflecting means having longitudinally ofiset end sections and a laterally deflected section connecting said offset end sections, said deflecting means cooperating with said enclosing wall to define a combustion chamber, one of said end sections being positioned in said fire-box inwardly of said burner means and rendering said combustion chamber substantially wide with respect to said enclosing wall, and said laterally deflected section providing substantial height to said combustion chamber with respect to said burner means, and said other end section defining a restricted passage with respect to said enclosing wall, said deflecting means operating to direct the heat energy generated by said burner means along the enclosing wall of said fire-box.

21. A furnace comprising: a fire-box having burner means extending adjacent its enclosing wall; a plurality of sectional deflectors positioned in said fire-box and cooperating with said enclosing wall for directing the heat energy generated by said burner means along said enclosing wall; and laterally projecting means disposed at one end of each of said deflectors engageable with said burner means, and supported thereby, and effective to permit adjustment of said deflectors with respect to said burner means.

22. A furnace comprising: a fire-box; burner means having a plurality of engaged sections extending adjacent the enclosing wall of said firebox; means effective to permit radial adjustment of said engaged sections with respect tosaid wall to conform to fire-boxes of different sizes; and deflecting means positioned in said fire-box 00- operating with said enclosing wall to define a passage for directing the heat energy generated aoamoo.

by said burner means. along the enclosing wall of said fire-box.

23'. A. furnace comprising: a fire-box; burner means having a plurality of engaged sections extending adjacent the enclosing wall of said firebox; burner conduit means for supplying fuel to said burner means; means for supporting said conduit means whereby the same are rendered movable to adjust the position of said engaged sections with respect to said enclosing wall to conform to fire-boxes of different sizes; and deflecting means positioned in said fire-box cooperating with said enclosing wall to define a passage for directing the heat energy generated by said burner means along the enclosing wall of said fire-box.

24. A furnace comprising: a' central mixing chamber; burner means communicating with said central mixing chamber; means for supplying secondary air to said burner means; valve means for regulating the amount of air supplied to said central mixing chamber; and a member for entirely supporting said foregoing means and adjustable to adjust said means with respect to the enclosing wall of said furnace.

25. A furnace comprising: a central mixing chamber; burner means communicating with said central mixing chamber; means for supplying secondary air tosaid burner means; valve means for regulating the amount of air supplied to said central mixing chamber; a single fuel conduit entirely supporting said foregoing means; and adjustable means for supporting said fuel conduit and for adjusting said foregoing means with respect to the enclosing walls of said furnace.

26. A furnace comprising: a fire-box having burner means extending adjacent its enclosing wall; means effective to permitadjustmentof said burner means with respect to said enclosing wall to conform to fire-boxes of different sizes; and a plurality of sectional deflectors each having its longitudinal edges laterally offset and having their lateral offsets overlapped, whereby said sectional deflectors may be adjusted with respect to said enclosing wall to conform to fire-boxes of different sizes, said deflectors cooperating with said enclosing wall to define a passage for directing the heat generated by said burner means along said enclosing wall.

27. A furnace comprising: a fire-box having burner means extending adjacent its enclosing wall; means effective to permit adjustment of said burner means with respect to said enclosing wall to conform to fire-boxes of different sizes; and. deflecting means supported by said burner means, but adjustable independently of said burner means to conform to fire-boxes of different sizes, said deflecting means cooperating with said enclosing wall to define a passage for directing the heat generated by said burner means along said enclosing wall.

28. A furnace, comprising: a fire-box; and a plurality of burner sections lying substantially in the same plane and overlapping in inter-igniting relation, and means for supporting said sections whereby the same are rendered radially adjustable, the overlap being suflicient to maintain said relation in all adjusted positions.

29. A furnace, comprising: a fire-box, a plurality of burner sections lying substantially in the F same plane and overlapping in inter-igniting relation; means for supporting said sections whereby the same are rendered relatively adjustable; and a single fuel supply for said burner sections.

30. Afurnace, comprising: a fire-box; a plurality of burner sections lying end to end, substantially in the same plane and overlapping in interigniting relation; fuel supply means for said burner sections; and a pilot burner adjacent to a predetermined one of said burner sections and remote from others, for igniting fuel issuing from said predetermined section.

31. A furnace, comprising: a fire-box; and a plurality of burner sections, each formed with burner openings and being adjustable relative to adjacent sections, and said adjacent sections having cooperating parts provided with burner openings, at least some of the burner openings in said cooperating parts being disposed in adjacent relation regardless of the adjustment of said burner sections, thereby providing for inter-ignition between said sections in all the adjusted positions.

32. A furnace, comprising: a fire-box; and a plurality of burner sections, each having burner openings, and being formed with a projection and a recess, said projection also being provided with burner openings and adapted for disposition within a recess of an adjacent section, to provide for inter-ignition between adjacent sections.

CHARLES L. BRYANT.

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