US1627235A

US1627235A - Heater

Info

Publication number: US1627235A
Application number: US716986A
Authority: US
Inventors: Henry V Deemar
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-05-31
Filing date: 1924-05-31
Publication date: 1927-05-03
Anticipated expiration: 1944-05-03

Description

Mayl 3, 1927.

H.V.DEEMAR HEATER Filed May 51, 1924 Patented May 3, 1927.

UNITED STATES HENRY v. DEEMAR, or sT. LOUIS, MISSOURI, YAssIofNOIi. 'ro JOHN II. `IaIaUriIirGA,

I TRUSTEE, or'sir. LOUIS, MISSOURI.`

HEATER.-

This invention relates to heaters, and more particularly to heaters which may operate with gas fuel and the like for heating rooms or buildings.

One of the objects of this invention is to providea heater which will be economical in the matter of fuel consumption and which may providea positive air circulation there-` through for heating the air; v

Another Objectis to provide fsuch a heater' of novel design which may be: adapted to heat a considerable quantity of air in a short time. Y

Another object is to provide such a heater in lwhich a considerable extent of heating surface may be heated by a single flame and which heating surface isbrought into intimatecontact with the air to; be heated.

Further Objects will appear from the detail description taken in connection with the accompanying drawing,.in,whicli: y

Figure 1 is a vertical sectionshowing a heater embodyingthis invention;

Figure 2 is a section on line 2 2, Figurel; j 4 i Figure 3 is a section on line 33-3, Figure l; .and f j i Figure 4 is` a fragmentary viewshowing lanother embodiment of this inyention. v Referring to the accompanying drawing, 1 .designatesa central airtube which is` surrounded by a second tube 2 formlngtherebetween an annular combustion chamber 3. f These tubes may be constructed of suitable sheet metal and supported relatively tojone j another as will presently be pointed out.

The tube 1 fits at its lower` end into a casting 4 provided with a rim oreflange 5l adapted toreceive thetube 2 and properly space the same from the tube 1. The casting 4 is further provided with an -outer flange 6 spaced from the flange 5 by suitable webs 7 and providing between them and the` flange 5 achamber 8 communicating through suitable openings 9 with the interiorofthe tubel. The lower end ofthe tube 1 below the casting 4 is adapted to be connected to the outlet tube' 10 of a `suitable fan or blowerll.

The casting 4 maybe provided with a` connection 12 suitable forattachment with` a suitable mixer 13 for supplying a mixture 'of air and gas to the combustion chamber'l 3. A suitable pilot 14 may also be connected with the gas'supply and arranged for iguiting the gas in the combustion chamber. A series ofairsupplytubes 15 ismounted chamber 8 and` extend a substantial distance into the combustion chamber These tubesl are annular-ly f arranged as .shown in Figure PAT- FFIC'E., Y L

r`in the casting 4 sot as topass through the 3 and serve to supply air tothe combustion -1 chamber.VV described in Patent No. 1,341,266, ygranted May 25,1920. f f

The gas Vmixture entering at the connection 12 is `ignited within the chamber 3 4and burns with the flame which travels upwardly along said chamber.V The mixture as ,supplied by thev mixer 13 comprises acertainproportion of air sufficient to cause com-V bustion.` The tubes 15, however, supply an The mixer 13 may be such as additionalquantity of air at the point where combustion begins `or .attheoriginof the flame. This point is beyondth'egpoint" of entrance of the combustible mixture. Thus the flamey ispsuppliednat its origin .with a plantiful quantity of air sol that a. rapid combustion is promoted and a long flame produced. This flame. travels upwardly along the chamber 3 to practically the yfull extent of saidl chamber, .heating thevtubes 1 andA 2 to a high temperature.

The upper end of the combustionlchamber 3 is 4closed bya plate16 provided "witha flange 17 to receive the tube 1 and an outer flange 18V to receivetheftube 2in order to i properly space the tubes from one another. VThe plate is perforated with an annular series of perforationszintoeach lof which a short tube 19 is spun. The upper ends of the tubes 19 are similarly'spun into perfora-V tions in the'lower Vplate 2O of a hood 21 adapted for connection with'a suitable flue 22. Afdamper 231nayfbe supplied in the flue 22 if desired. Passage is thus provided for the burnt gases from the chamber 3 ythrough the tubes 19 to thehood 21, thence tOfh flue 22. f Y

Theouter flange (Siof thecasting 4 may be provided with a shoulder adapted to re ceive an outer .tube 24 surrounding thevrtube ,2 and providing an air jacket .therearound The upper end of the tube 24 terminates in a flared lip 25 just below the plate 16 and is `spaced from the tube 2 by a series of wings 26 formed onthe flangeV 18 but having .spaces therebetween to permitithe passage OffairV out of the tube 24. The outward flare of the lip-*'25 providesa horizontally lno flame has been started the blower 11 is set into operation so as to blow air upwardlyi through the tube 1. This air passes out at the outlet from beneath the `.hood E21 bythe spaces between the tubes 19. Thus an ample supply of1air is passed upwardly throughthe tube11 so as to keep Athe same from overheating,- and the air I thus heated passes fout-y wardly 1 in a horizontal direction-'between lthepipes 1-9 andbelowthe lower jiilatefZO.-y

A` certain amount oftheair suppliedby they blower"11-also finds its'way through the openings y9a and :upwardly Within Ithe jacket 24 a`nd=out at the-upper outlet thereof, falso in a horizontal direction.

n zontal outward flow of the air fromY between the "tubes -19 also tendsto'rcreate asuction 'at *the'outletofjthe jacket 24 lso as Vto assist in Iprovidinga draft of air; through said:

jacket;

' passedfthroughlthe heater Vand over 'the heating-.surfaces and rapidly discharged into fm the'room.'y Theupward draft of air in the tubel serves to operate the atomizer nozzle ,27 so as yto supply a suitable quantity' of moisture to 'the'heated air;

In jthe embodiment/shown intFigure4 4 av Isimple ring 29 provided iii place ofv the in said rings"y Thel jacket 24 isspacedfrom the tube ,2k by means of afseries of spacers 3() fxedto the tube'in 'anyjsuitjable manner .manner as that previously'described,.but in this case the draft' of aii'lthroughthe jacket @24"i`s set up Yby. induction rather thanA the pressure of the blower.

lt will vbe evident, therefore, thatlthis .invention provides `a simple and effective` :heater in which a burner is provided-fwhich fmwill lieatthe entire lengtlifbf thejtubes 1 and 2` andwhich is provided with an ample. draft'ot air passing over these tubes so as to take up the 'heattherefro'm and prevent their overheating.

ing surfacesrmay be'operated at a higher temperature than when -oiily natural draft depart-ing from thespirit of this invention;

it is, therefore, to be understood that'I this invention is not to be limited to the specific *details shown andI described.

abovethe fp oint 'means H i This: serves to -take=upfthe heat ofthe-outer tubeQ` so as f to -preventoverheatingv thereof;A The; hori-I Thusaii amplequantityof air is I By means of such a heater a Llargef quantity ot air can'be heated in a comparatively short time since' the lieat- Having thus describedthe invention, what 4is claimed is:

1A heater comprising, a `casing adapted to torni an`T annulanchamber, means for supplying aV combustible mixture to said chamber, and ducts entering and extending 'into said chamber and adapted to admit air into the flame beyond the entrance of the combustible f mixture.

2, A heater comprising, a casing adapted to form an annular chambery ineansior supplying' aV combustible mixture yto 'the bottom of said chamber, andtubesfenteiinglthe bottom of and extending up intofsaid-chamber and=-adapted= to admitwair into Vtheflame otentrance of said supplying 3. "A heater comprising, a casingadapted to form an annulari combustionchai'nbei",` means for supplying' i a combustible imixtuire to series" of :iii-ducts extending' into-*and directed along said chamber and-terminatsupplying means, adaptedto Jldeliver` air to the `flame beyonch said p'oint of entrance. F'

4. VA heater' comprisingya casing adapted to form' airaniiular' combustion chamber, means for supplying a coifnbustible-mixture to said chamber Aat oneA end ithereoi,f and -a series of air ducts extendingfinto land directedalong said `-chamber and f terminating lbeyond, the

.point ofentrance ofsaid supplyin'gfmeans, the `'mo uths of said ducts form-ing points of .origin for the flame. casting 4 .andrthe tubesl are mountedk 5'. A heater comprising', a vertica'lzair tube surrounded by a casing to form'lanfannular lcombustion chamber, means for supplying a combustib-le mixture to thebottomfofs'aid surrounded byy a casing to foriiran annular combustion chamber, means for supplying a combustible mixture 'to @the bottoni of said chamber,v ducts entering.theibottoinfof and extending" into said' chamber and adapted to admit air intoztheiilameat its origimand Vmeans for forcing"airlthrough said tube.

lll)

7 A heater comprising, a vertical airtube Y surroundedby' a casing to form an annular combustion chamber, .means for supplyinv a combustible mixture tothebottom of sai chamber, ducts entering thebotto'ilijof. and

'extendinginto saidlchainber andH adapted l to admit air into the flame at a point beyond Ythe entrance of the combustibleinixture, an air jacket surrounding said jcasing, and

'means for forcing air through saidftube and said jacket. Y j

8. 'A heater comprising,` a verticaltube having an air inlet at one endlilid. an, air outlet at its other end,- a casing surround? 9. A heater com risinfr a vertical tube havingl an air inlet at one end and an air outlet at its other end, a easing surrounding said tube to 'form an annular combustion chamber, an open air aeketsurrounding said easing, and a blower adapted for forcing air through said tube and said jacket to prevent overheating of Said easing.

10. A heater comprising, a tube surrounded by a easing to form an annular' chamber, n'ieans for supplying a combustible mixture to said chamber, and a series of tubes annular-1y arranged amilV adapted to Connect said chamber with a ue, the spaces between said tubes providing an outlet for said` tube. Y t v 1l. A heater Comprising, a casing adapted to form an annular chamber, means for supplying a combustible mixture to the lower` part of said chamber, and duets entering said chamber and terminating above the bottom 25 thereof.l adapted to supply air to the flame at its origin above the bottom of. said chamber. Y In testimony whereof` I aix my signature Y this 25th( day ol April, 1924.

HENRY V. DEEMAR.