US1714649A - Air distributor - Google Patents

Description

May 2s, 1929.

C. A. WALOUKE AIR DISTRIBUTOR Filed May 3 1926 2 Sheets-Sheet,

INVENToR C'arlesf. Waloulre SYM/@w ATTORNEY May 28, 1929. c. A. WALOU'KE 1,714,649

AIR DISTRIBUTOR Filed May 3, 1926 2 Sheets-Sheet 2' lNvEHNToR war/65A. T/Valoaive ATTORN?? Patented May 28, 1929.

cHAELEs A."WALoUKE, o'E CLEVELAND, 01110.

AIR msmEIEu'roE.y

Application filed May 3,

This invention relates to air distributers, and especially to such devices as applied to furnaces in which a central fire pot is provided for combustion, thesmoke and other products of the combustion passing olf at the upper part of the furnace, and the fuel being ordinarily directed as a gas into the lower portion of the lire chamber or deposited as solids just above the ash grate.

My invention relates especially to fuel economizers whereby many of the products ordinarily passing off through the chimney may be used in a more perfect combustion resulting in a great saving of fuel. It is well known that much of the fuel waste in furnaces is due to the fact that not sufficient oxygen is supplied at the point where combustion is supposed to take place, or that the outsideair entering the lire chamber through the usual draft openings is supplied at'so low a temperature that the combustion is imperfect and incomplete. My improved distributer is ,des signed to overcome both of these defects, supplying an adequate amount of oxygen by an air current in a heated condition and` directed to the proper point forperfect combustion.

It is an object of my invention to arrange a device havinghollow tubular construction mounted upon the walls of the furnace and penetrating the same so that the air directed through it will be forced out at a point somewhat above the flames in the fire chamber, usually at a point substantially the level of the upper portion of the furnace door. In my improve-d construction, I insert the tube leading to the device through the furnace wall at the rear of the furnace opposite the door or at either side, though in some cases it maybe desirable to introduce the distributer pipe j ust above or at one side of the door.

It is a further object of my invention to so attach the distributer pipe to the wall opening through which it is' directed, that the connections at the wall will serve as a means ef mounting the distributer within the chamber. Y Y v With these and other objects in view, I have yinvented a construction embodying the features herein described and illustrated in the accompanying drawings, in which- Figure l is a'vertical section of a hot air furnace showing my improved air distributer Y in operative position within the fire chamber ;A Figure 2 is a plan View of the air distributer in position, a portion of the upper covering 1926. YSerial No. 106,270.

plate being removed, andthe furnace wall shown in section; Y

Figure 3 is a plan view of a modified form of the device, shown in a larger scale and omitting the attachment with the furnace wall;

Figure 4 is avertical section of the device hown in Fig. Sftaken onthe line 4-4 of ig. 3; Figure 5 is a vcross section taken on the 'line 5-5ofFig.3; t Figure 6 is a cross section taken online 6-6 of Fig. 3 i Y Figure Tris a view, partly in section showing a form of the device mounted upon the rear wall of a water heating furnace with the walls of the furnace in section. n

In Fig. 1, I have shown my improved air distributer l as an annulus 2 formed of'hollow pipestructure, here shown as rectangular in cross'section'but not necessarily so, and having a number of apertures?) inthe walls of this pipe. When the cross section is rec'- tangular, the apertures in the upper and lower plate of this pipe will preferably be arranged in staggered relation, as shown in Fig-f2,

while the apertures in the side walls will also be staggered, and not directly opposite theL top and bottom apertures, when this can be done. This ring 2 is supported by an integral pipe 4 connected by an intermediatepipe 5 which leads Vfrom the outer wall of the furnace :to the wall of the fire chamber 6. l The parts'4 and 5 will be connected togetherby suitable flanges 7 and iXedly secured to the being rendered gas proof bysuitable packing such as asbestos, fibre or other suitable means for avoiding leakage; It has been found highly advantageous to telescope in some way, the

vchamber wall by bolts' 8, the parts usually f connecting ends of the sections 4 and 5, yas by inserting thereduced end 9 opfthe'tube 5. within the opening 10 of the pipe 4. This construction hasbeen found highly eifective'in making the joint leak-proof. The bolts 8 areinserted in registering apertures vin the flanges of both parts 4 and. 5, as well as through therwalls of the chamber, so that the pipes 4 and 5 are bolted together vsecurely and also theV annulus2 positively supported in position over the center of the fire area. The section 5, as shown in Figs. 1 and2, conducts air from the opening 11 at'the outer surface of the furnace l2,`through,thespace between the outer vfurnace wall and the wall llO of the lire chamber 6, thereby beingY pre-` heated somewhat by the hot-air chamber 13. rlhis is desirable, since this arrangen'ient provides an introductory heating prior to entering the high-temperature section 4l where it is pre-heated by the fire chamber heat directly by the flames and gases therein. The

ropening 11 may be partially closed by a valve itpass'es out into the lire chamber through the various apertures 3, as above explained. The outerend of the tubular section 5 is attached to the outer wall of the furnace by other flanges 7, and by an outer ring 19 ap plied to the edge of the opening in the furf nace wall, `the ring and flanges being bolted together in the manner that the sections are secured tothe fire chamber.

In the form shown in Figs. 3 to 6, the annulus 2() is provided with the same character of apertures 3, but the lower plate 21 thereof is spaced from the upper plate a greater distance .at the point of union with the section 22 which latter is modified to register with such union, this section being tubular and inclined, in the same manner as the pipe 1, with its lower end attached tothe section 5, just as in the form shown in Figs. 1 and 2. In 'further spacing this lower plate 21, itis curved downwardly at 23 to approximately double the vertical space between the plates that they have in the balance of the annulus, and this space is divided horizontally by a web 24: having an entrance projection 25 extending into the section 22. Apertures 3 are provided in the walls of the upper chamber 26 of the enlarged tubing as in t-he arrangement in the annulus shown in Figs. 1 and 2. The entire vertical wall 27 at this pointis formed in wedge-shape as in the first form. The section 22 may be enlarged at the upper end only, being lreduced to the usual circular shape at its lower end where it connects with section 5.

In all these forms shown in Figs. 1 to 6,- the annulusV is showny as rectangular in cross section, and divided into double chamber form in Figs. 3 to 6 for a portion of its extent. It is to be understood that such tubing may, if desired, have some other form in cross section, such as .circular or oval. The apertures 3 would be placed at different positions on the outer wall of such tube, to distribute the air at different points and in different directions therefrom, for greater effectiveness.

In Fig. 7, I have shown my airdistributer improvement, the otherwise separate parts 4 and 5, will now be made integral as the part 29 whose upper end is integral with the annulus 2, and the lower end inserted in an opening of the plate 28 and secured therein by the flange-ring construction in much the same manner as the part 5 is attached to the furnace wall, in Figs. 1 and 2. In this con-y struct-ion, as in those shown in Figs. l to 6, inclusive, the annulus is supported solely by the inclined pipe from the f furnace wall, and in a position centrally over the fire area, so that the only partially burned gases from the fuel will receive oxygen supply froml the distributor and again burn in a heating flame of great intensity. Y l

The purpose of .all theseconstructions is to malte feasiblea preheating of the air introduced into the firev chamber, and do this by a construction admitting of ready assembly when mountedV within a new furnace, but especially admitting of application to furnaces already assembled and mounted `in a building, and possibly already in use for some time. This makes quite. essential that the pre-heating tubc-l or 22,shall not be attached to any part of the` furnace other than at the opening therein where the tubes are inserted. OperatiomMy improved structure is adapted for mounting within the fire chamberof all types of furnaces. I have illustrated it asmounted on either air current furnaces or water heating furnaces. It is obvious thatv it is adapted equally Vwell for use in steam or vapor furnaces, it being only essential that tubing being provided that shall `pierce they walls between the'eXternal Vsurface of the furnace and the fire chamber.

It is to be noted that when the inner .wall of the fire chamber is spaced appreciably from the outer furnace wall, as in Fig. 1, the intermediate,section, shown `here as 5, must be mounted between and upon these walls, and that the connection made by this section with the outer surface and with the support section, must be one that is leak-r ico llO

above the center of the fire area of the fire chamber. As the air in the section 5 is heated as it passes therethrough outside the fire chamber, it enters the latter already moderately heated, when it is further and more positively pre-heated by the high temperature of the gases in the saidchamber. The air supply from said distributer will therefore be discharged from the various apertures 3 of the device highly heated and very well adapted to support combustion of any gases arising from the fire area below and thereby resulting in a far more perfectA of the fuel elements, and which member is readily mounted upon the furnace walls. This feature is, to my knowledge, new and patentable.

Having described my invention, what I claim and desire to secure by Letters Patent,

l. The combination with a furnace having a iire chamber spaced interiorly thereof, of an air distributer comprising an annular tubing polygonal in cross section and having apertured walls and a horizontal partition plate within said tubing and dividing the air space at the ent-rance portion of the tubing into an apertured upper space and an imperforate lower space, an imperforate tubular section connected integrally with said tubing and inclined downwardly from said tubing within the fire chamber and mounted upon the wall of the chamber by attachment concentric with an aperture of said wall, a horizontal tubular section connecting the aperture in the chamber wall with an aperture in the outer wall of the furnace, so that outer air may pass through the horizontal and inclined sections to the annular tubing and above and below the said partition plate and thence escape through said tube apertures, the said tubing with apertured walls being supported solely by the said inclined section. V

2. The combination with a furnace having a fire chamber spaced interiorly thereof, of an air distributer, comprising a curved tubular portion positioned over the fire area of the fire chamber of said furnace, an inclined and imperforate portion leading downward and outward from said curved, portion mounted upon the walls of said furnace, a' tubular section connecting the walls of the furnaceV and of the chamber by having its ends piercing the said walls, respectively, the inner end of said section telescoping the lowei` end of said inclined section, and means onthe outer surface of the furnace wall for adjust-y ably closing the outer' end of said tubular section.

3; The combination with av furnace having a fire chamber spaced interiorly thereof, of an air distributer comprising an annular tubing polygonal in cross section and having apertured walls, an imperforate tubular s ection connected with said apertured'tube at one end and inclined downwardly from said tubing within the fire chamber and mounted upon the wall of the chamber by attachment concentric with an aperture of said wall, and a horizontal tubular section connecting the aperture in the chamber wall with an aperture in the outer wall of the furnace, so that outer air may pass through the horizontal and inclined sections to the annular tubing and thence escape through said tube aper- 1 tures, the said tubing with apertured walls being supported solely by the said inclined section.

4. The combination with a Vfurnace having a lire chamber spaced interiorly thereof, of anair distributer comprising an annular tubing polygonal in cross section and having apertured walls and a horizontal partition plate within said tubing and dividing the air space at the entrance portion of the tubing into an apertured upper space and an imperforate lower space, an imperforate tubular section connected with said tubing` and inclined downwardly from said tubing within the fire chamber and mounted upon the wall of the'chamber by attachment Concentric with an aperture of said wall, a horizontal tubular section connecting the aperture in the chamber wall with an aperture in the outer wall of the furnace, so that outer air may pass through the horizontal and inclined sections to the annular tubing and there divide at the said partition plate, the air above the plate thence vescaping through said tube apertures and the air below thel plate passing to a point beyond the plate and thence escaping. through the farther tube apertures, the said tubing with apertured walls being supported solely byl the said inclined section.

In witnessl whereof I have hereunto set my hand this 28th day of April, 1926. f

CHARLES A. WALOUKE.

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