US1668596A - Gas burner - Google Patents

Description

'Rn-c. MASON May 8, 1292s.

GASV BURNER Filed sept. 15. 192e I /NVENTo/e www5/705m A TTOR )v5 y Patented May 8, 1928. y

y UNITED srixriszsv mcnanncemem meer, or. TULSA, Criterium, esmaltes, re-reufmeseueoe PORArIoN, or rutsaoxmeom, e couronner or creanme:

GAs nonnen.

Application lcd September 15, 1926. SeriaiNo. 135,580.

My invention relates to fuel burners and Vmore particularly toa heavy duty gas burner wherein steam is employed asy a `fuel ele-k ment andas a propellingmedium for delivering the fuel mixture to the point of combustion; the principalobject of the i-nvenn tion being to provide an effective fadmix- 'ture ofl the gas With combustion supporting elements and delivery of themixture to a combustion'chamber.' t

In facco'mplishingV this object! have provided improved ldetails ofV structure, lthe preferred forms of which are illustrated in the accompanying drawings, wherein:

Fig. 12 is a'perspective view of an oi dinary type. of furnace equipped with a burner embodying my improvements, the burner being enlarged out ofjproportion to f the furnacefor better illustration.

Fig. 2 is a. longitudinal section of the burneri Fig. 3 is a cross section on'the line 3 3, Fier-93g Fig. 4 is' a detail perspectiveview'of the baille member. A

- Fig.` 5 is a detail perspective view of the gas iet pipe.

Y Fig. YGis a detail perspective View of the steam manifold.

Fig. 7 is a detail perspective view of the air intake regulator.

fF'ig. 8 is a detail perspective view 'of the mixer housing, and" j Fig; 2 is an enlarged section of part' of thesteam manifoldand one of the steam nozzles.

` Referring more in detail to the drawings:

1 designatesthe irebox of an ordinarytypeof furnace 2, having a fire door 3 in its front end. 'Located ladjacent the fire 'box are gas and steam supply lines 4C, and 5, upturned yat ,their` deliveryends and terminating at about the v'lower level of the fire door 3. Mounted on the delivery end of the gas .supply pipe e is a T union 6 and mounted in the forward end of said union and extending in the direction of the ire box is a jet pipe 7, constituting a manifold for a plurality" of outlet tubes 8, having forwardly directed nozzles 9; thefoutlet tubes being arranged in spaced and staggered relation throughout the greater portion of the length of themanifold.

Mounted on the manifold 7 by spiders 10, which may consist of studs attached to its inner surface' and engaging theivmanifold, y

is a mixer housingv 1l, preferably of barrellilre construction, havingian elongated-'reducing forward end land amore abruptly reducing rear end 13, the rear end having a double taper `'to form alenturi mouth 14. The mixing barrel or housing is arranged centrally about the gas supply pipe orfmanifold 7 and entends forwardly beyondithe forward endof the manifold.

` Threaded onto the forward end ofthe manifold 7 isa reducer coupling lo carrying a rod 16 that extends' through the for y ward end of the housingand mountsa baille plate 17 having concave rear face against which fuel mixture `is ldelivered from the burner in a mannerpresently described, for diffusion Within the f i'ireboxy of thefurnace to which the burner is appliedn f Mounted on the delivery end of the steam pipe 5 and surrounding the gas pipe/or manifold 7 is a manifold 18 provided with an annular series of forwardly directedjets 19 adapted for delivery through the Venturi mouth'ld of the burner housing. The steam manifold 18 is ringdilre and spaced slightly rearwardly of the mouth of the burner housing so that jets of steam escapingfrom the manifold are ydirected through anair space into the mixer housing and maydraw air into the housing for mixture with the gaseous fuel element. The ring-like part of themanifold 18 ,is offset from its attaching` nipple 2O to form fa shoulder 21, and opening from the lshouldered part of the 'nip ple and eritendingfinto the gas manifold f9 is "a tube 22, having a nozzle 23 directed forwardly into the gas manifold to draw the gas'forvvardly from its supply and impel it ytoward the outlet nozzles under pres.-

sure. e

Attached to the rear endof the Tvunion 6 on the gas supply pipe is an lairy intake Y hood 28 comprising a regulating damper 24 through which air fork admixture With the gas to form a combustible fuel is admitted to the burner.

Assuming` the parts to be constructed and assembled as described, with the forward end of the mixer housing located Within the opening` in the fire box, and the baille Within the box to the rear of the opening, operation of the burner is as follows:

rThe valve 25 and 26 on the gas and steam pipes respectively are opened to permit flow of gas and steam to the burner in desired proportions, and the regulator in the intake hood adjusted to provide a volume of air which, when added to that admitted through .the shoulder on the steam manifold. The

steam also being under pressure, will jet from the nozzles in the steam manifold into the mixer through the Venturi mouth of the mixer housing, drawing in air with it to support combustion. Pressure of the gas and steam in the direction of the re box will cause a delivery of the fuel mixture through the end of the housing against the baflie plate 17 where the mixture is diffused, andvupon rignition will burn evenly about the end of the burner.

It is apparent that with the construction and arrangement of elements above described, I not only provideV for a positive feed of the fuel elements to the mixer, but for an effective co-mingling of the elements in the mixerA so lthat practically complete lojombustion will take place within the fire What I claim and desire to ters Patent is: n

l. In a burner, a mixer housing open at both ends, a manifold arranged centrally within the housing, forwardly directed noz* zles leading from the manifold and means for delivering a iuid fuel element into the rear end of the housing for admixture with the fuel element delivered from said nozzles.

2. In a burner, a mixer housing open at both ends, a gas manifold arranged centrally within the housing, nozzles communicating with the manifold and directed forwardly within the housing, and a fiuid medium manifold rearward of the housing and having nozzles directed for discharge into the mixer housing.

3. In a burner, a tubular mixer housing, a manifold extended through the rear end of the housing to the interior thereof, nozzles on the manifold within the housing, a manifold exterior to the housing and havsecure by Leting nozzles arranged to direct a Huid medium through the rear end of the housing about the first-named manifold, and means for admitting an auxiliar supplyy ofV air Ato the first named manifol 4. In a burner, a tubular mixer housing having an open forward end an a Venturi mouth at its rear end, a gas manifold extended through the Venturi mouth to near the forward end of the mixer housing, forwardly directed nozzles on the gas manifold, a steam manifold surrounding the gas manifold adjacent the rear end of the burner housing, nozzles leading from the steam manifold for delivery through said Venturi mouth, and means for supplying gas and steam to the respective manifolds. 5. Ina burner, a tubular mixer housing having an open forward endand a Venturi mouth at its rear end, a gas manifold extended through the Venturi mouth to near the forward end of the mixer housing, forwardly directed nozzles on the gas manifold,ia steam manifold surrounding the gas manifold adjacent the rear end of the burner housing, nozzles leading from the steam manifold for delivery through said Venturi mouth, and means for supplying gas and steam to the respective manifolds, the steam manifold having a nozzle leading through the gas manifold and directedforwardly therein.

6. A burner comprising a tubular'housing open at both ends, a gas supply pipe leading through one end of the housing to near the other end thereof,`nozzles on said gas supply pipe within the housing, means for directing a'fluid element into the housing from the exteriorvthereof, a rod on the gas supply pipe extending through the end of the housing opposite said fluid medium intake and a baffle on said rod, spaced from the end of the housing. 'i'.l A' burner comprising a gas supply pipe having a T union, a manifold connected with said union, nozzles on said manifold, a housing having spider mounting on the manifold and surrounding the nozzles, and an air intake hood mounted'on said T union. In testimony whereof I affix my signature.

RICHARD ooLBERT MASON;

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