US1297137A - Oil-burner. - Google Patents

Description

P.AH. FULLER.

o lL BURNER.

APPLICATION HLED OCT. 11| 19H3.

1,297, 1 37# Patented Mar. 11,1919.

Waff. r

Inventor;

y"tinge, butl it is evident that a burnerr em- PERLEY H; FULLER, 0F AUBURN, MAINE.

0in-BURNER.

To all whom t may concern:

Be it known that I, PERLEY H. FULLER, a citizen of the United States, residing at Auburn, in the county of Androscoggin and State'of Maine, have invented certain new and 'useful Improvements in .Oil-Burners, of

which the following is a specicaticn.Y

My invention relates to voil burners designed particularly to burn kerosene oill in ranges, furnaces and other heaters.

In the type of burners to which my invention belongs, the oil is fed to the burners under a high pressure and passes through a heated vaporizing chamber which is heated by the flames ofthe burner. rIhe val por is discharged through a small discharging nozzle into 'a mixing chamberV where air and vapor are commingled and burned in an intense ame. I

The object of my invention is to co1istruct the burner with a double outlet so that as leach outlet discharges its flame it will comey into heating contact with the vaporizing chamber of the other portion of' the burner. Burners of this type have av tendency to fill the vaporizing chamber with carbon deposit which is one of the products of the decomposition of the oil. I have found that the introduction of water vapor into the vaporizing chamber checks this tendency and prevents the carbon from def positing.

A further object of ymy invention theref fore is to provide means of introducing water vapor into the vaporizing chamber without the expensive apparatus which would be necessary to force it in under pressure.

For the purpose of introducing the water into the vaporizing chamberI form one of i the walls of said chamber of refractory andA absorbent material as 'asbestos board andY provide means of bringing a continuous supply of water into contact with the body of the absorbent material outside of the chamber.

The capillary attraction 4carries the water through the pervious wall notwithstanding the internal pressure inthe chamber and the water vapor is taken up and miXed'wifth the hydrocarbon vapor modifying the reactions within the vaporizing chamber and preventing the carbon deposits.

In the preferred embodimentv of my invention', I make use' of standard pipe` t- Specification of Letters Patent.

Patenteaiuar. 11, 191e.

Application filed October 11` 1918. Serial No. 257,705.

bodying my invention maybe built up in a variety of ways. l

I have illustrated my invention inthe accompanying drawing in which is shown a burner suitable for a range or furnace and made up of standard fittings so that it may be easily and cheaply constructed.

Referring to. the drawings,

Figure l is a side elevation.

Fig. 2f is a plan.

Fig. 3 is an end elevation with baiie plate removed and,

F ig.v 4 is a section enlarged, the upper half being taken on the line 1-1 of Fig. 2 andV Y the lower half on 2 2 of Fig. 2.

In the drawings,

2 represents-the central hub of a standard T in which is a suitable opening 3 connecting with a pipe through which the oil under pressure is fed to the burner (see Fig. 3). In each of the lateral branches 5 and 6 of the T, I screw a short length of pipe 7 and 8 respectively and at the outer endv ofeach of the pipes 7 and 8, I connect a return bend. The return bend 9 connects with the pipe 7 and the return bend l0 connects with the pipe 8. In the outlet end of each return bend I screw a short section of pipe or tube l1 and 12, these tubes comprising the miX-v ing chambers of the burner where the air and -vapor unite to form the flame which takes re and burns after passing through the tube on the* principle of the Bunsen burner. The two bends are turned away from each other yso that the outlet opening of each will be pointing in the opposite direction to the yother and parallel therewith and so that, the tubes 11 and 12 will lie side by side, but discharging in opposite directions. Inthe outlet end of each of the bends I insert a vapor discharge nozzle 13, this nozzle being located inside of the inner end of the mixing tube.. In each of the` mixing.

tubes is cut an air inlet slot l5 and a ring 16 isdesignedto regulate the air supply. Each of thetubes 11 and 12 are left open at their outer ends so that the ame is discharged at the same time in two opposite directions at the opposite ends of the burner. The flame produced by` this burner, as .will be seen, is a noiselessflame burning on the prin ciple of the Bunsen burner since the vapor and air do not take fire to form the iame until they issue from the end of the mixing tubegw'hen they-have been thoroughly miXed.

Thevamount of'air admitted and the diam= eter of the tube with the pressure on the oil are such that this result is accomplished and a noiseless flame produced. Means are provided .whereby these two oppositely moving flames are deflected laterally and each brought into heating Contact with the vaporizing chamber which supplies the other with vapor.

For this purpose l suspend a baffling plate 17 in front of the outlet of each of the tubes ll and l2. Each of the baflie plates 1T is suspended from an arm 1S attached to a ring 19 which surrounds one of the pipes 7 and S.

rEhe baffle plate is pivoted to the arm 1S and is arranged at an angle which tends to deflect the flame against the adjacent return bend, the latter constituting a portion of the vaporizing chamber.

Under normal conditions the baille plate remains vertical, but when the flame is projected out with unusual pressure behind it, the baffle plate swings away from the end of the tube and the full heat of the flame is not projected against the return bend or vaporizing chamber.

It will thus be seen that the heat of the vaporizing chamber is always kept up by projecting against it the flame from the opposite discharge nozzle and overheating is prevented by deflecting the flame as described.

Means are provided for introducing water vapor into the vaporizing chamber or a connecting chamber and against the internal pressure which always exists in the chamber when in operation. For this purpose l introduce into one of the walls of the vaporizing chamber a diaphragm of refractory and absorbent material and provide means for keeping said diaphragm continuously wet.

As here shown l screw into the lateral hub of the T 2, a short nipple 20 and on the outer end of the nipple l connect a flange 2l.

To the face of the flange 2l, l secure a pair of disks 22 and 23 preferably formed of asbestos and these two disks are held against the flange 2l by an impervious plate 2e. The disk 22 constitutes in eect a diaphragm interposed between the source of water supply and the interior of the vaporizing chamber the water continually passing inward through this diaphragm by capillary attraction against the internal pressure of the vaporizing chamber. rl"he disk 23 may be regarded as an auxiliary diaphragm as it retains a. certain amount of the water.

The disks 22, 23 and 2dare secured to the flange 2l by suitable bolts 25.

rlhe disks 22 and 23 are slightly separated to form a thin water chamber and this water chamber is filled by a plurality of fine woven wire disks 26 which insure the distribution of the water.

At the upper end of the water chamber a small aperture 27 is formed to receive t. e

i? neer, iev

water which is allowed to drip in through the pipe 28.

rlhe pipe 28 connects with a water tank 30' and is controlled by a suitable valve 29.

rthe oil in the pipe e is connected with a suitable source of oil supply under pressure and the oil supply is controlled by a valve 31.

llilhile the burner is in operation, water is allowed to drip into the water chamber 2T, it is distributed through the wire gauze 26 and absorbed by the asbestos disks 22 and 23.

The inner surface of the asbestos diaphragm is always exposed to the heat of the vaporizing chamber and the result is a constant evaporation of moisture from the said surface.

rlhis evaporation takes place regularly and supplies the heated hydro-carbon vapor with a large port-ion of water vapor and the result is a very hot llame and a. burner which will not deposit carbon in the vaporizing chamber.

.For the purpose of preventing the vapor discharge nozzles from becoming obstructed by any carbon which may be formed in the vaporizing chamber, l cover the inner end of the vapor discharge nozzle with a suitable wire gauze strainer 32 clearly shown in TL nd with a burner constructed on this principle that while it does not prevent the formation of carbon in the vaporizing chamber, it allows the minute particles of carbon to pass off through the vaporizing nozzle without depositing on the walls of the chamber and this carbon is burned as a series of sparks or very bright points in the flame of the burner.

l claim:

l. An oil burner having a pair of vaporizing chambers adjacent to each other, a vapor discharge nozzle connected with each of said vaporizing chambers, and a baffling plate for deiiecting the flame from each nozzle into hea-ting contact with t-he opposite vaporizing chamber.

In a. vaporizing oil burner, the combination of a` 'lhaving an oil connection, a pipe connecting with each end of said "l", a return bend at the outer end of each of said pipes, a vapor discharging nozzle at the out- .let of each of said return bends pointing in parallel and opposite directions, and a baille plate in front of each nozzle for deliecting the heat to thc opposite return bend 3. an oil burner having a pair of vaporizing chambers adjacent to each other, a vapor discharge nozzle connected with each of said vaporizing chambers and a baffle plate pivot-ally suspended in front of each nozzle and arranged to throw the ame into heating contact with t-he other vaporizing chamber.

n oil burner including a vaporizing chamber one of the walls of which is formed by a diaphragm of refractory Vand absorbent m'aterial, a a/t thin Water chamber being formed on the back face of said diaphragm and means for supplying Water to said water chamber.

5. An oil burnerincluding a vaporizing chamber one of the Walls of which is formed of a diaphragm of refractory and absorbent material, a flat thin Water chamber formed on the back side of said diaphragm, a pervious filling for said Water chamber for distributing the Water and a Water inlet for said Water chamber.

6. An oil burner including a vaporizing chamber one of the Walls of which is formed of a main diaphragm of refractory and absorbent material, a like auxiliary diaphragm outside of said main diaphragm, said diaphragms being separated to form a Water chamber, a pervious filling for said Water chamber and an impervious outer covering plate for confining the Water.

7. An oil burner having a vaporizing chamber With an oil inlet, a pipe leading from said vaporizing chamber, a collar on said pipe, a pair of disks of refractory and absorbent material secured to the outer surface of said collar said disks being slightly separated to form a thin Water chamber, a plurality of Wirey gauze disks filling said Water chamber, an impervious disk outside ofthe absorbent disks for confining the Water and means for introducing Water into said Water chamber.

8. In a vaporizing oil burner, the combination of a vaporizing chamber, an oil inlet duct therefor, a vapor discharge nozzle at each end of said chamber, a mixing tube for each nozzle, the nozzles and mixing tubes being each positioned to direct a ame in the direction of the exterior portion of the opposite end of the vaporizing chamber.

9. In a vaporizing oil burner, the combination of a vaporizing chamber having an oil inlet therein, a vapor discharge nozzle at each end of said chamber, a mixing tube for each nozzle and means for directing a portion of the flame from each mixing tube into heating contact With the exterior portion of the opposite end of said vaporizing chamber.

10. In a vaporizing oil burner, the combination of an externally heated oil vaporizing chamber, an oil supply duct connected therewith, ay Water vapor chamber having a Wall composed of refractory and absorbent material, said Water vaporizin chamber being directly connected with said oil vaporizing chamber and means for supplying Water to said absorbent material outside of said Water chamber.

11. In a vaporizing oil burner, the combination of an open vaporizing chamber having a Wall of refractory and fibrous material, the interior of said Wall being exposed to the action of the vapor contained in said chamber and means for supplying Water to the outer portion of said Wall.

In testimony whereof I affix signature.

PERLEY H. FULLER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

Images