US1697855A

US1697855A - Furnace attachment

Info

Publication number: US1697855A
Application number: US252965A
Authority: US
Inventors: Cusenza Joseph
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-02-09
Filing date: 1928-02-09
Publication date: 1929-01-08
Anticipated expiration: 1946-01-08

Description

J. cUsENzA l FURNACE ATTACHMENT Filed Feb. Q 1928 Jan. 8, 1929.

Patented Jan. 8, 1929.

JOSEPH CUSENZA, OFDETROIT, MICHIGAN.

apta,

FUR-NACE ATTACHMENT.

Application filed vebruary 9, 1928. v Serial No. 252,965.

My invention relates to a new and useful` appear from the description given.

` mined An object of the present invention is to provide a most efhcient furnace which is used for heating purposes, either in power plants or for heating dwellings, buildings andthe like, and to provide a furnace in which al minimum amount of fuel will be consumed.

Another object of the invention is the provision of a device whereby a quantity of steam and air may be led into the Afurnace for combustion purposes and for assisting in the combustion of the fuel ordinarily burned therein.

Another object of the invention is the provision of a release valveadapted for settingl the device into operation upon the developing of steam in the reservoir to a predeterressure.

Anot er obj ect of the invention is the provision of a device of this class which will be The invention will be best understood by a reference to the accompanying drawings which forma part of this specification and in which,

1 is a side elevational view of the invention showing it installed in a furnace,

which is shown in fragment. y p

Fig. 2 is a top plan view of the invention showing it installed in a furnace.y

Fig. 3 is f an enlarged fragmentary sectional view of a part of the device,

Fig. 4 is a central sectional view of a valve used in the invention.

In the drawings I have illustrated the device mounted on a furnace having a front wall 7 a side wall 8 and a grate 9 and-provided With hot water pipes 10 which are normally positioned above the level 11 of thebed of coals. These pipes 10 are suc-h as are commonly found in hot air, steam and hot water furnaces, and serve the purpose of supplying hot Water to the hot4 water tank. They of themselves form no part of the invention, but are shown to illustrate the method of mount; ing the invention.

The pipe 12 which is connected to a suitable source of water supply, such as the city supply under pressure, is connectedthrough the valve13 and the

pipes

14, 15, 16anol 17 to the pipe118 which extends inwardly of the furnace and is connected in communication with the large pipe 19, thispipe 19 being contate nected by the return 20 to the pipe21 which connects through thel return 22 the pipe 23, the return 24 to the reservoir 25. An .outlet pipe 26 connected to this reservoir,

passes through the pressure pop valve 27,

this valve being regulated to open upon the building of a predetermined pressure in the reservoir 25. A T 28 is in communication with the pop valve 27 and also with the pipe 29 which communicates with the pipe 30 projected inwardly of the furnace .below vthe grate 9 and provided at its end with a nozzle 31 having aflattened end 32. ,Connecting .with the T 28 is a small pipe 33 which is threaded into the head 34 which is mounted in the pipe 35. A pocket V36is formed in the head 34, leading outwardly from which and extending axially of the pipe 35 is a tube 37. A screw 38 is threaded in the head 34 and serves as a needle valve operating in the rend of the tube 37. This vpipe 35 is projected inwardly of the furnace,

suitable nuts

39 and 40 being adapted to clamp the front wall 7.

The pipe 35 is projected inwardly of the fur-

y

17 and 18 lead, is a pipe 46 provided with a stop cock 47

Plates

48 and 49 cooperating with suitablebolts 50 are' used to secure the pipe 19 upon the hot water pipes 10, the pipe l19 being offset asat 50, to bringvthe major portion ofthe length of the between the pipes 10.

rIlle valve 13 is provided with a plug 51 having a valve -seattherein in which engages theV end of the screw or needle valve 52k which threads into the block 53 screwed in-t-o the shell of the valve I13, thus aording a -means for regulatingthe amount of water which. may flow from'the source of supply through the pipe 12 into the pipe 19.

' In operation, after the bed of coals has been placed on the grate 9 and ignited, the valve 47 is opened to permit the escape of such surplus water as may have collected the heating;

pipex19 to liey coils consisting of the pipe-19, the returns 20,

21 and 24, and the

pipes

21 and 23, as well as the reservoir 25. The valve 47 is then closed and the needle Valve 52 opened sufficiently sufficiently to open the valve 27, this superlyy of the pipe 35 sets up a vacuum, air will i heated steam wil'lpass 'through the

pipes

29 and 30 outwardly from thelattened end 32' of the nozzle 31 and thence upwardly through the burning coals on the grate. At the same time, a small'quantity of the steam will pass through the pipe' 33 into the 'pocket 36 tlfirough the tube 37 and outwardly through the perforations 44.` As this steam travelling through the tube 37 which is positioned axialbe drawn in through the opening 54, so that the steam andv air will commingle in the pipe 35.. The pipe yy is not spot welded tothe cup-shaped member 43 around its entire periphery, but atseparated points, preferably three or four in number. heated gas from the interior of the furnace will also be drawn intothe cup-shaped memberl 43, and this heated gas, ltogether with the air and the small quantity olf-steamwhich passes through the tube`37 will be expelled through the perforations 44. This steam and airwi'll assist combustion of theV gases which rise from the bed of coals, and the superheated steam expelled from the nozzle when brought into' contact with the bur-ning coals will be b-roken'up into its constituent gases and burned. This operation will' continue so long as the pressure in the coils and reservoirt25 and the pipe 26 is su-ii'cientfto maintain the valvey 27 in open condition. lt is desirable that this valve 27' be set to ope-n at afpressure slightly less than the pressure of the water supply in the pipe 12. In many cities this water supply pressure is but twenty-five pounds, and in such case it would bepreferable to have the valve27 set to open upon a building up of a pressure of approximately twenty pounds, so that a backing up of the water into the water supply pipes could not tale place.

the. superhe'ated With a device constructed in this mannerk a considerable savingl of fuel is effec-ted as the gases-provided by` the steam which is delivered into the bed of coals forms a considerable part-of the heating function desired. Underv normal conditions thedevice will continue to operate and eject from the nozzle 31 coals on-the grate 9; are of' combustible quality,` that is, luntil the bed of: coals has been f burned, in which* event the valve 27, upon the loweringV of the pressure below the pre- Consequently, the

steamso longasthe bed of one which is very easily and quickly installed oni a furnace already built, and very easily built into a furnace in the course of its manufacture. Thel durability and simplicity of the device is believed evident from the description, and experience has'` proven, after repeated tests,` the eiiiciency of they structure and tlie economy resulting; from its operation.

After operation llas: ceased and prior to generating steam i-n the reservoir and heating coils there is built up a pressureof over the required amount to open the valve,` the water which is in the reservoir and heatingcoils and which. will berforced from the nozzle` will be deposited in the ash pit below the gra-tes and the live coals in no, serious mann-er affected.

Vhile l have illustrated and described the preferred form of my invention, I do: not wish to limit myself to the precise details oai structure shown, but desire to avail myself of. such variations and modifications as come-within the sco-pe ofthe appended claims.

Having thus described my invention what v l claim as new and desiretosecu-reby Letters Patent is:

1. A device of the class described adapted forV use on 'a furnace, having a combustion chamber and gratespositioned below said combustion chamber,y comprising: heating coils extended into said combustion chamber; means for delivering water toV said heating coils; a nozzle positioned below said grate; and valve automatically establishing communication between said nozzle and said heating coils upon building up of predetermined pressure in said heating coils.

2. A device of the class described adapted for use with a furnace having a combustion chamber and grates: positioned therebelow, comprising heating coils in said combustion chamber; means for.y delivering liquid to.- said heating coils; a nozzle positioned to discharge below said grate; means for connect-V ing said nozzletofsaid heating coil; a valve interposedbetween said nozzle said heating coil for controlling sai-:d communication, said Valve being automatically opened upon building' up of a predetermined pressure in said heating coils.

3. A device of he class described adapted for use with a furnace having a combustion chamberv in cem-munication with said heating coils; meansfor delivering liquid to said heatingV coils a conduit',communicating with said reservoir; a` nozzle communicating with said conduit and adapted for discharging into said furnace below the coals on said grate;

and a valve interposed between said conduit and said nozzle and automatically operable for establishing communication between said nozzle and said conduit, upon building up of a predetermined pressure in said reservoir.

4. A device of the class described adapted for use with a furnace having a combustion chamber and grates positioned therebelow, comprising: heating coils in said combustion chamber; .a reservoir in said combustion chamber in communication with said heating coils; means for delivering liquid to said heating coils; a conduit communicating with said reservoir; a nozzle communicating with said conduit and adapted for discharging into said furnace below the coals on said grate; a valve interposed between said conduit and said nozzle and automatically operable for establishing communication between said nozzle and said conduit, upon building up of a predetermined pressure in said reservoir; a

' pipe extending Ainwardly of said combustion chamber' and opening at its outer end to the atmosphere; an axially positioned tube in said pipe; a by pass for communicating said tube with said conduit upon opening of said valve; and a perforated sleeve engaging the inner end of said pipe, said inner end being open and discharging into said sleeve.

5.- A device of thel class described adapted for use with a furnace having a combustion chamber and a grate positioned therebelow, comprising: heating coils positioned in said combustion chamber; a nozzle communicating with said heating coils and adapted to discharge below the coals on said grate into said furnace; means for delivering liquid to said heating coils; a valve positioned between said nozzle and said heating coils and automatically establishing communication therebetween upon buildingup of a predetermined pressure in said heating coils; means projecting into said combustion-chamber and communicating with the atmosphere; and means for setting up an induced draft through said last named communicating means upon the opening of said valve.

6. A device of the class described adapted for use with a furnace having a combustion chamber and grat-es positioned therebelow,

munication; upon building` up of a predetermined pressure in said reservoir; a pipe projecting inwardly of said combustion chamber and communicating at its outer end with the atmosphere; and means operable upon the opening of said valve for effecting an induced draft inwardly of said pipe.

7 A device ofthe class described adapted for use with a furnace having a combustion chamber and grates positioned therebelow, comprising: heating coils in said combustion chamber; means for delivering liquid to said heating coils; a reservoir in communication with said heating coils; a conduit communi-V cat-ing with said reservoir and extending eX- teriorly of said furnace; a nozzle communieating with said conduit and adapted to discharge into said furnace below the coals positioned on said grate; a valve interposed in said conduit for controlling communication between said nozzle and said reservoir and automatically operable to establish said communication; upon building up of a predetermined pressure in said reservoir; a pipe projecting inwardly of said combustion chamber and communicating at its outer end with the atmosphere; a tubular member extending axially of said pipe; a by pass connecting said `tubular member with said conduit; rsaid tubular member conducting steam under pressure upon opening of said valve into said pipe for effecting-an induced, inwardly directed draft; and a perforated cup-shaped member embracing the inner end of said pipe.

In testimony whereof I have signed thev foregoing specification. Y f

rosari-r cosenza.