US1393937A - Oil-burner - Google Patents

Description

F. BEU.

OIL BURNER.

APPLICATIONJILED FEB. g2, 1920. v

Patented Oct. 18,

SHEET SHEET1 Zia/6723a 2' .Wan/K 56.

$ BE U.

OIL BURNER,

APPLICATION FILED FEB 12. 1320. g gagay Patented Oct. 18, 1921 3 SHEETSSHEET F. tu.

OIL BURNER.

APPLICATION HLED FEB. 12, 1920.

Patented Oct. 18, 1921Q 3 HEETS-SHEET 3.

PATENT orrics.

FRANK BEU, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-FOURTH T0 MCEWEN, OF CHICAGO, ILLINOIS.

OIL-BURNER.

Specification of Letters Patent.

Patented fact. 18

Application filed February 12, 1920. Serial No. 358,063.

1/ 0 al Z whom it may concern:

Be it known that I, FRANK BEU, a citizen of the United States. residing at Chicago, in

the county of Cook and State of Illinois, have invented new and usefullmprovements in Oil-Burners, of which the following is a specification.

This invention relates to an oil burner. Among the objects of my invention is to provide an oil burner of such a construction that it may be incorporated in or applied to in the pipes into a gas and thus prevent thedeposit of carbon in the pipes. so that the pipes will not become blocked to hinder the flow of oil therethrough. Another object of my invention is to supply air to the place wherethe oil is discharged from the pipes, so that the oil may be converted into a gas and be mixed with the oil vapor to produce a combustible mixture. which when ignited gives the heat required to work the furnace.

The invention consists further in the matters hereinafter described and more particularly pointed out in the appended claims.

in the accompanying drawings Figure 1 is a side view of a steam boiler furnace and showing applied thereto an oil burner constructed in accordance with my invention Fig. 2 is an enlarged horizontal sectional view taken on the indirect line 22 of Fig. l;

Fig. 3 is a top plan view taken on line 3 of Fig. l; I

Figs. 4.. 5, and (l are vertical sectiona. views taken on lines 44. and (i(i. respectively. of Fig. l: and

Fig. 7 is a vertical sectional view taken on line 1-7 of Fig. 2 to show a detail of construction.

In the drawings I have shown an oil burner of my invention applied to a steam boiler furnace of a well known type. The oil burner extends into the fire box of the furnace. and is used to heat the boiler to gen- .walls, and its rear end terminates s ash pit is filled with a suitable materia the ash pit.

erate steam in place of and as a substitute for coal or other like combustible material heretofore used for that purpose.

The steam boiler furnace illustrated o that type comprising two side walls 1, l b upward from a suitable foundation 2. wh not only supports thefurnace structure bm forms the floor of the ash pit. Loca ed between the side walls is a steam boiler 5 horizontally arranged, or substantially so, and of that kind having a plurality of ies l. 3- extending thercthrough from end to end. as shown. The forward end the boiler 23 rests on the front wall of the furnace s ting, and the fines 4 open at'thz s end a smoke chamber 6 communicating with stack or chimney 7. as customary.

boiler 3 is further supported by t The lv l the rear wall 8 of the furnace shown in Fig. 1. to allow the'heated produced in the fire box to enter the lines at the rear after traveling along the under side of the boiler. The side walls 1. l are continued upward over the top of the boiler to completely house the same, as shown. 3h:- tending between the side walls 1. 1. beneath the boiler 3 and at a point intermediate the ends thereof, is a bridge wall 9 rising up ward from the foundation This wall 9 terminates short of the boiler 23 to pc lit the heated gases produced in the the ho M'l pass over said. bridge wall toward the rear end of the boiler; the fire-bin; being in frontof the bridge wall.; as customary. have merely shown enough of the furnace structure to illustrate the application thereto of my oil burner.

An oil burner of myinvention. when'applied to a steam boiler furnace of the t" shown. is constructed as follows. in a i ing the burner, the grate bars of. the furnace are removed from the tire-box. and he such as concrete 10. to form a bane for supporting those parts of my burner structurelocated in the tire-box. The base 10 is ivcn the height desired, as for example the height that the grate bars were above the floor of ()n the base 10 are built upright walls 11, 12. of the same heig .7 .id spaced apart laterally. The walls are preferabl y made of fire brick or other refractory material and are given the thickness desired. The walls ll, 12 are of course in the fire-box Q Leases;

and extend from the front wall 5 to a point short of the bridge wall 9, as shown in Fig. 2. Said walls 11, 12 have their innerend portions 13, 14: divergin so as to be spaced apart a greater distance than the remaining portions of the walls to form chambers, to be hereinafter referred to more in detail. Substantially midway between these wall plu'tions 13, 1 1, there is built on the base 10 an upright. partition wall 15, also of tire brick or suitable refractory material and preferably of a double thickness. This wall 15 extends to the bridge wall 9, its front end portions 16, 17 diverging to meet the inner ends 01" air pipes or conduits 18, 19 between the walls 11, 12. The air conduits 18, 19 are inserted into the fire-box of the furnace through the fire door opening 20 provided in the front wall 5 of the furnace. T he pipes 18. 19 are supported in place by having them incased in fire brick 21 built in said opening,

the fire door of the original furnace structure being removed to permit this to be done. The pipes 18, 19 are substantially parallel and extend beyond the front wall of the furnace, as shown. Each conduit 18. 15) is connected at its outer end with the outlet or discharge of a blower 22, there being a blower for each pipe. The blowers are operated by any form of prime mover, as electric motors 23, there being, in the particular construction shown, a separate motor for each blower. The blowers could be operated by one motor if desired, as by connectinp the shafts of the blowers together, but a separate motor for each blower s preferable so that all the blowers will not be rendered inoperative in case any one of the motors fails for any reason. Thus, that part of the burner connected with the blower still operative could be used to heat the boiler and generate steam until the faulty motor is repaired or replaced by a new one. The blowers and motors are mounted on a suitable support or foundation 24- built for that purpose in front and outside of the furnace setting. The inner ends of the pipes '18, 19 terminate on opposite sides of the partition wall 15 and open into chambers 25 formed in part by said partition wall and the walls 13. 14. Thus, by said pipes 18. 19..the blowers may discharge or deliver air into such chambers. and to regulate the amount of air delivered into the respective chambers there is a manually operable slide valve" or gate '26 in each pipe 19, as shown in Fig". 2,

To complete the chambers there is built inward from the bridge wall 9 two arches 27-. 2.7. one extending: from the partition wall 15 to one of the side walls 1. and the other arch extending to the other side wall. as clearly shown in Fizz. 5. These arches form a roof or top wall for their therefrom open toward the respective side walls 1, 1 of the furnace setting; the walls 13. 11 terminating short of the bridge Wall 9 for that purpose. These walls 13, 14' extend upward to the arches, as shown, so that there is only one outlet 28 for each Chan.- ber 25.

A. liquid fuel is used with the burner, this being an oil supplied to the burner from a tanlr29, located .at any convenient point outside of the furnace setting and supported at an elevation to give a gravity feed, as shown in Fig. 1.- This oil may be of a heavy body kind, as crude oil, and is led from the tanlr by a pipe 30, extended to and across the front of theihiriiace setting, as shown in Figs. 1 and 2. The pipe 30 extends across and over both of the air pipes 18 19, and has two branch pipes 31; 32, The pipe 31 leads down into the air pipe 18 in advance of the place where that pipe enters the furnace setting, and is continued by a pipe 33 through the air pipe 18 to the inner end thereof, where it opens into the chamber 25 at the inner end of said air pipe 18. The other pipe 32 leads, in a like manner, into the air pipe 19 and is connected with a pipe 5 1, which extends through the pipe. 1-9 and opens into the other chamber 25. To completely shut oil and control the supply of oil to'the pipes 33, 34:, a hand valve 35 is located in the pipe 30' in advance of its connection with its branch pipes 31, 32. Each branch pipe 31. 32 has a hand valve 36, so that the oil supply thereto may be out of? or controlled independently of the other branch pipe. Thus eitherv side of the burner may be used independently of the other, or both sides may be used at the same time,

and the supply of oil controlled to meet/the working conditions of the boiler. To add water vapor tothe oil supplied the burner, there is a steam pipe 37 leading from a suitable source of supply, as for instance the steam boiler being heated by the oil feed to the burner. This pipe 37 is extended to the front of the furnace setting and is provided with two branch pipes 38, 38. in each of which is a hand valve There is a branch pipe 38 extending into each of the fuel pipes 31, 32, and has its end opening and discharging into thatportion of the fuel pipe 33.. 34- which extends along inside of the air pipe 18 or 19, as shown in detail in Fig. 7.

- The masonry 21 built in the fire door opening 20. may be cm'ered on the outside by a plate ell). and the air pipes 18, 19 extend through this, as shown in Fig. 6. This plate is also provided with peep openings normally closed by hinged-covers 41. These openings register with passages provided in the masonry 21, and there is one of such openings toreach side of the burner so 55 "respective chambers 25. and outlets 28.. that the operator may have accessinto the ""tion chamber of the fiirnace for starte burner and. also to note the operation the same from time to time.

To inclose pes 18, l?) in a. chamber, the side ohich are "formed by the Walls 11. 12. ails bridged above the pipes by a l as on ng of loose sand 43, and ss chambers 25.

. 7, the fuel pipe 32 is .EbWQQ-H the pipe section by a i -coupling l4 and a To this coupling hi is con \1/ section iG'er-rtending above the irough which the branch 38 of 'lpe :rtends. To the pipe 46 is one-steel. fitting ei'l' having a screw plug vvleh when removed permits access to be has in o the pipe sections and The par. f 1 is is to permit a flexible feed pi r wire (not shown) as it is sometimes called, to be inserted into the fuel pipe time the burner is to be started. The

e branch pipe 33. provided with a like ruction for the same purpose.

0 start the burner, when incorporated in steam boiler furnace of the type shown. the .lves are closed. The blowers 22 are tarted and air discharged into the chambers A flexible pipe or feed Wire connected tanlr of more volatile oil, such as 'ene, is inserted into one of the pipes 31. 352 through the opening provided by remo the plug 48. For example, I will take pipe 32 for the description in this con nection. being of course understood that the seine method of starting will be used for the other side of the burner. after one side has been started. The feed. Wire is pushed pipe until the chamber is reached.

" 'osene l)(lXlfZ under pressure is dishis chamber and atomized by forced into the same through The kerosene is vaporized and e air in the. chamber 25 and e mixture. which [lows or incoming air out through the passage 28. The operator then opens the )ecp hole adjacent the pipe l9 and inserts thc lire-box of the turn; 0, a bar or rod log a Home at its inner end. and when amc reaches a proximity to the outlet age 23 of the particular chamber the combustible mixt'zic formed in that chamber gmted. Then the oil being: used as fuel is tnrned on to his particular chamber and red tl ".lilIO by gravity. The air being discharged into tbc chamber from the end of the pipe 1'9 has suli'nicnt force to draw the oil from pipe 34-, and the oil is not only forced ne by t atomized or sprayed by this action. but is evaporated by the air to form a. combustible mixture, which assoon as it strikes the heated area of the chamber about and adjacent the outlet passage 28 thereof ignites and produces a flame, thus producing the required heat to generate steam in the boiler I). lVh cn the other side of the burner is'in operation. both valves arc thcn opened and the oil fed to both chambers :25. The generation of gas in both chambers is the same. and the two working in conjunction heat the boiler. The heated gases thus produced are forced out of the chambers 25 through the outlet passages: 28 and up and over the arches 27 and along the under side of the boiler to the rear and then through the fines to the stack.

The point of ignition oi the gaseous mix ture. in cach chamber is at the rear thereof. that is. \vhcre the mixture strikes the walls and is dctlccted out of its straight path of movement. This being beyond the inner ends of the air pipes l8, l5) and their fuel pipes 33. 3,4. these pipcsare removed from the dircct action ot the heat produced upon the ignition ot' the mixture. it is in this space that the air and oil mix. or. in other words. where [he generation of the combustiblc mixture takes placc. The Walls oi the chambers being heated also aid in this. Thus. the pipes 32. 34 are not subjected to any direct heat. and the oil \vhilc being car ricd thcrcthrough is not convcrtcd into a gas. this being done beyond the pipes. is the oil while in the pipes not heated and no ,L'zls: converted therefrom. no carbon forms and thus is not depositcd in the pipes. having the fuel pipes in the air pipes. and the air being drawn in from the outside atmosphere. the fuel pipes are kept relatively cool at all times. and there is no opportunity for the oil to carbonize the pipcs and block the same.

in Fig. 1. it will be noted that the air pipes 13, 19 are inclincd downward toward tho bottom Walls of the chambers these walls being formed. in the installation shown. by the base 10. These bottom walls are substantially flat and arranged substantiall horizontal. so that the air when dis charged into the chambers strikes the bottom walls at a point in advance of the outlet passages 23. This results in giving the air a whirling action to vaporize oil more thoroughly and produce a more efficient gaseous mixture. The oil is of com e atomized by the air passing ovcr the discharge ends of the fuel pipes.

An oil burner of my invention is comparatively simple in its construction and operation and may be readily applied or installe 'l in the firebox of a steam boiler furnace. and will effectively produce the degree of heat required for generating steam in the Q viler and supplant el'licicntly and ceonomieallv the use of coal or the like as fuel. The point of ignition of the combustible mixture is housed and no direct play of flame on the steam boiler is had, with advantages as apparent. )their and further advantages will be apparent to those skilled in the art to which my invention appertains.

To support the fuel pipes 33, 34 in the air pipes. suitable hangers may be secured in the air pipes for that purpose. J While I have shown and described herein in detail an oil burner constructed in accordance with my invention as applied toand used with a steam boiler furnace. it is to be of course understood that the burner could be put to uses other than generating steam, and, further. it could be embodied in a furnace structure as a part of the original installation. Furthermore, it is to be understood that the various details of construction of my burner and arrangement of parts as shown may be variously changed and modified without departing fromthe spirit and scope of my invention.

I claim as my invention:

1. In a structure of the character described, the combination with a main compartment having side and front walls, of means located in said compartment between said side walls and spaced rearward from said "front wall and forming a chamber smaller than the main compartment and opening into the latter, a liquid fuel sup ply pipe extending from said front wall to said chamber and discliargiiig'into the latter toward and against one of the walls thereof, means fordelivering air under pressure into said chamber froma point adjacent the discharge end of said fuel. pipe for drawing liquid fuel in said chamber and generating therein a combustible mixture for ignition in said chamber. and means in said compartfment between said front wall and said chamher and surrounding said fuel pipe for shielding the same from the direct action of the heat produced in said compartment.

2. In a structure of the character de scribed, the combination with a main compartment having side and front walls. of means located in said compartment between 'said side walls and spaced rearward from said front, wall and forming a chamber smaller than the main compartment and opening into the latter. a liquid ,fuel supply pipe extending from said front wall to said chamber and discharging into the latter toward and against one of the walls thereof, and an air pressure conduit surrounding said pipe between said front wall and said chamber and opening into the latter about the" discharge end of said pipe for drawing liquid fuel in said chambe and generating therein a combustible mixture for ignition in said chamber.

3. In a structure of the character described, the combination with a main tter toward and against one of the walls thereof, a conduit extending between said front wall and said chamber and surrounding said pipe'and opening into said chamber about the discharge end of said pipe. said conduit and said pipe extending through said front. wall to the outside of the same. and a blower connected with the other end of said conduit.

4. In a structure of. the character de scribed, the combination with a main compal'tment having'front, side, and rear walls, of means located in said compartment be' tween the side walls thereoi and adjact the rear wall of the same and forming with said rear wall a chamber. smaller than said main compartment and opening into the latter toward one of said side walls, a liquidfuel supply pipe and an air pipe in compartment and extending between chamber and said front wall, saidrt'uel discharging into said chamber, said air pipe surrounding the entire portion of the fuel. pipe in said compartment and opening into said-chamber about the discharge end of said j-fuel'pipe and both discharging into said clianfber toward and against oneot the walls, thereof, and a blower located outside of said l-compartment' and connected with said a'il pipe.

A' liquid fuel burner. comprising means providing a; chamber having an outlet at one end thereof and in one of the. side waits of the same, a liquid fuel supply pipe open ing into sitid chamber at the opposite end thereof an list-barging toward the rear wall of the me, and an air pressure conduit s'urrourling said pipe and opening into said chaiiibertabout the discharge end of said said pi pe saidpipe, said conduit being arranged at an inclination to one or" the walls or" said chamberjtor creating a whirling action to the air deli\ered into said chamber for generating a combustible mixture therein be,

fore its ignition in said chainbeik 6.111 a structure of tlie- 'charaeterdo scribed, the combination with cone partment having side and front walls, of means located in said compartment between said side walls and spaced inward from iii tit;

said pipes discharging into said chambers, and means for delivering air .under pressure into said chambers from points adjacent the discharge ends of said pipes for drawing the liquid fuel into said chambers and generating' therein combustible mixtures for lg.

nition in said chambers.

7. In a structure of the character described, the combination with a main compartment having side and front walls, of means located in said compartment between the side walls thereof and spaced rearward from said front wall and forming two chambers arrangedside by side and opening into said compartment toward said side walls, liquid fuel supply pipes in said compartment, one for each chamber,and extending between the, same and said front well, said pipes discharging into said chambers, air pressure pipes surrounding said fuel pipes and extending between said chambers and said front wall and outward through the latter, said air pipes opening into said chambers about the discharge ends of said fuel pipes, and a blowermeohanism exterior of said'front wall and connected with said air pipes.

8. The combination with a furnace structure having a compartment formed by front and side walls and a bridge wall, of a liquid fuel burner for producingheat in said com-- partment, compris ng means providing a chamber within said compartment adjacentsaid bridge Wall and opening into said compartment toward one of the side walls thereof, a liquid fuel supply pipe and a conduit extending into said compartment through the front wall thereof and discharging into said chamber toward said bridge wall, said conduit surrounding said pipe and opening into said chamber about'the'discharge end of said pipe, and a blower located outside of said furnace structure and connected with said conduit.

9. The combination with a furnace structure having a compartment formed by front, side, and bottom walls, and a bridge wall, of a liquid fuel burner for producing heat in said compartment, comprising three upright walls built in said compartment on said bottom, two of said walls extending from the front wall'to a point short of said bridge wall, and the other wall being between said two walls and extending from the bridge wall toward the front wall to provide chambers on opposite sides of said. lIliQIll'lPf. .v wall and opening into said compartment toward the respective side walls there arch over each chamber and forming ti t wall thereof, two liquid fuel supply pi; extending into said compartment throu the front wall thereof and arranged betthe upright walls extending fr in said flout wall, said pipes disehargingone into each compartment adjacent the forward end of said intermediate wall, two conduits extending into said compartment through the front wall thereof and arranged between said upright walls, saidconduits opening, one into each of said chambers adjacent the discharge ends of said pipes, and a blower connected with each conduit and located outside of said compartment.

10. The combination with a furnace structure having a compartment formed by in side, and bottom walls, and a bridge wall a liquid fuel burner for producing in. said compartment, comprising three upri walls built in said compartment on said bottom, two of said walls extending from. front wall to a point short of said hi wall, and the other wall being between two walls and extending from the wall toward the front wall to provide bers on opposite sides of said intermediate wall and opening into said compartment to ward the respective side walls thereof, an arch over each chamber and forming the top wall thereof, two liquidfuel supply pipes extending into said compartment through extend, and the compartment. formed by said upright and top walls being filled with sand. In testimony that I claim the foregoing as my invention, I al'lix my signature, this 10th day of February, A. D., 1920.

Y FRANK BEU.

the P

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