US1047250A - Burner. - Google Patents

Description

J. L. LANDRY.

BURNER;

APPLIOATION FILED APR. 9. 1912 2 SHEETS-SHEET 1.

Patented Dec. 17, 1912.

J. L. LANDRY.

BURNER.

APPLICATION FILED APR. 9, 1912.

Patented Dec. 1'7, 1912.

2 SHEETS-SHEET 2.

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BURNER.

fineness.

To all whom it may concern:

Be it known that I, Josnrn Lao LANDRY,

a citizen of the United States,'residing at Napoleonville, in the parish of Assumption and State. of Louisiana, and whose postoflice address is Napoleonville, Louisiana, have invented new and useful Improvements in Burners, of which the following is a specification. .This invention relates to liquid fuel burners, particularly to that type wherein steam or air under pressure is utilized in the operation of the burner, and has for an object to provide a burner'for use, particularly, in.

connection with furnaces and steam boilers wherein the burner serves as an injector or feeder to discharge the liquid fuel and steam or air admixed therewith into the furnace with considerable force and, wherein the burner has connection with the boiler from which the burner receives its steam supply.

Another object of this invention is to provide a burner wherein one jet of steam or air under pressure is utilized for feeding the fuel to the main portion of the burner by suction and for partially breaking up the fuel, suchas-a heavy hydrocarbon, and,

For the attainment of these objects the.

burner comprises, broadly, a hollow body portion having an oil inlet at one side and adjacent one end thereof, apipe for steam or air underpressure opening into the said end through a feed-nozzle which is relatively small and extends centrally .into the body past theoil inlet to draw the oil into the body. This ipe is provided with a valve controlling t e flow. of the steam orair into the body to regulate the feeding of the oilto the body of the burner. The body constitutes an initial mixing chamber wherein the steam or air is partially commingled with the liquid fuel as the latter is drawn from itssource of supply. The body is provided intermediate its ends with an outlet Specification of Letters Patent.

Patented. Dec. 17 1912.

Application filed'Aprll 9, 1912. scrim No. 639,493.

or injector nozzle extending from one side thereof, and the pipe is provided with a bypass or branch entering the opposite side of V the body and opening into a diametrically located blast-nozzle which extends entirely across the central portion of the body and projects partly into the outlet or injector nozzle. The space in the outer end of the outlet nozzle beyond the blast-nozzle constitutes a second mixing chamber wherein the 5 additional steam or air from the blast further and more thoroughly breaks up the liquid fuel, and the additional steam or air is-admixed with the mixture contained in the body.

Other objects and advantages of this invention will be more particularly brought out in the following detail description of the embodiment of this invention disclosed in the referred to accompanying drawing in which,

Figure l is a side elevation of the burner in position, showing the burner plate in section, and showing a suitable connection between the burner and the sources of fluid so and fuel supply, and Fig. 2 is a sectional elevation of the burner in detail.

Referring to the drawing in whichrlike partsare designated by similar numerals of reference in the several views, 10 designates the body {or main portion of the burner. Preferably, -=this body or main portion comprises a hollow elongated cylindrical memer slightly reduced and internally threaded at its upper end and closed by a screw plug '90 11. The lower end of the body 10 is open and is internally threaded, and a fuel inlet branch-12 extends from one side of the body 10 at a point slightly above its lower end for V the purpose of introducing, oil into'the body at one side thereof and adjacent to its lower end. The intermediate portion of the body 10 is provided with-a pair of oppositely disposed internally threaded projections 13 forming a assage through the body at right angles to t e longitudinal axis of the same.

-A fluid supply pipe 14 extends into proximity with the ody 10, preferably lying in parallel relation therewith, and has connection with a suitable source of steam or air suppl The lower end of the pipe 14 is connecte to a U-shape feedin branch 15 by a suitable couplinglG. The eedin branch 15 extends toward the bod 10 and as its free end engaging up within the lower end of no the body 10. A suitable coupling nut or gland 17 engages, preferably, inthreaded relation with the end of thefeedin'g branch 15 and with the body 10 to hold the branch in position. A feed-nozzle 18 is carried upon the free end of the branch 15 and is considerably reduced in size therefrom for the purpose of forming a jet of the fluid passing through the pipe 14 and branch 15. The feed-nozzle 18 extends up into the body 10 to a point considerably'spacedabove the fuel inlet 12 for the purpose of creating. a

suction of the'fuel into the lower end of the body 10 from the inlet 12. A feed-control extends diametrically through the body 10 into the inner end of an injector or outlet nozzle 23 threaded into the opposite projection 13. From this construction it will be observed that. the jet from the feed-nozzle 18 blows 'at right angles to the jet or blast from the blast-nozzle 22, and that the latter nozzle does not empty into the body 10, but extends entirely through and beyond the same, so as to effect the suction of the admixed fuel and fluid in the body 10 into the outlet nozzle. It will be further noted that the blast-nozzle 22 is located directly opposite to and in line with the outlet nozzle so that a true injector action is had for the delivery of the hydrocarbon mixture.

- The pipe 20 is provided with a blast-control valve 24 for regulating the flow of the fluid to the blast-nozzle 22.

In Fig. 1 of the drawing one system is disclosed in which the improved burner may be used, the system comprising the boiler 25 from which is led -a steam supply pipe 26 connected in a suitable manner to the upper end of the pipe 14. Thefuel, usually a hydrocarbon, is contained within ithe tank 27 from which leads a fuel supply pipe 28 extending to and having connection with the inlet 12. The burner is so located that the nozzle 23 thereof extends through the fur-- nace plate 29 and into the furnace beneath the boiler 25. The present showing is only conventional, and any desired and practical arrangement may be had with respect to the relation of these parts. A valve 30 is preferably disposed in the fuel supply pipe 28 for controlling the flow of fuel to the body of the burner.

In the operation of the burner the feed control-valve 19 is first opened to form a jet in the body 10 from the feed-nozzle 18.

This jet creates a suction in the lower end of the body 10 and draws in a quantity of the oilproportionate to the size of the jet' heavy hydrocarbon mixture. As soon as a suflicient quantity of this mixture is contained within the body 10, the blast-control valve 24'is opened to admit the fluid ulnder pressure to the blast-nozzle 22. The jet or blast from the nozzle 22 creates a suction in the intermediate portion of the body 10 and draws out the heavy hydrocarbon mixture and admixes" the additional fluid from the blast-nozzle therewith. The blast from I the nozzle 22 at the same time discharges the thoroughly mixed oil and fluid directly from the injector or outlet nozzle into the furnace, or the like. The outer end of the injector nozzle constitutes a second m'ixing chamber wherein the additionalsteam or air is thoroughly admixed with the more or less heavy hydrocarbon mixture contained in the body 10. It will thus be seen that the branch 15 conducts a quantityof steam orair into the lower end of the body 10 for the main purpose of feeding the oil in the proportion desired, while the by-pass 20 conducts the steam or' air directly to the blast nozzle for discharging the mixture and for regulating the quantity of steam or air which is added thereto.

As just described and shown the burner is applied to a system wherein steam is utilized for the operation of the burner, and it will be understood that the pipe 14 may have connection with a suitable source of air supply, so that the oil may be admixed with air in place of steam.

What I claim is,

1. In an oil burner, a vertical body adapted to receive oil at the lower side and ad acent one end thereof, a fluid nozzle extending into said end of the body to feed the oil by suction into the body, an outlet nozzle extending from one side of the body above the fluid nozzle, and a second fluid nozzle extending diametrically through the body from the opposite side thereof and projecting straight into said outlet nozzle for drawing the oil by suction from the body lnto the outlet nozzle and discharging the same.

2. An oil burner comprising a hollow upright body having an oil inlet in one side at its lower end, a fluid feed-nozzle projecting into the body at said end and extending past said oil inlet whereby the fluid from the feed-nozzle feeds oil to the body by suction, an outlet nozzle located intermediate the ends of the body, and a fluid blast nozzle projecting into the opposite side of the body in register with the outlet nozzle and extending through the body and slightly mto the outlet nozzle whereby to draw the oil and admixed fluid into the outlet nozzle, and discharge the admixed oil and fluid.

3. A burner comprising an integral body portion of elongated shape adapted to be placed in upright position and having a.

laterally extending fuel inlet branch at its lower end and a pair of oppositely disposed and outwardly extending projections above the fuel inlet branch, a fluid supply pipe connected to said end vof the body adjacent the fuel inlet branch, a by-pass extending from said supply pipe to one of said projections, an outlet nozzle carried upon the opposite projection, and nozzles extending into 15 said body at right angles to one another, and communicating with the fluid supply pipe and by-pass respectively, said nozzle communicating with the by-pass extending through the body and into the outlet nozzle.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses. v

JOSEPH LEO LANDRY-i Witnesses E. N. LARLAND GEORGE SETH GUION.

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