US1711256A - Burner - Google Patents

Description

April 30, 1929. F, w co'x 1,711,256

BURNER Filed April 21, 1927 4 Sheets-Sheet 2 Ig y I f F} I z IHIHHH I 10 a; x J24 34 J9 1 ii I 18 H 36, J 5

JNZ/67ZIZZEV" -5 I My wMM /J W T" ag Ap 30, 1929. F. H. WILLCOX BURNER Filed April 21, 1927 4 Sheets-Sheet 3 mHWmWmm Inc/67%" f ederz'cic 0 2- ZUzZZcox @MWM April 1929. F. H. WILLCOX 1,711,256

BURNER Filed April 21, 1927 4 Sheets-Sheet 4 I jr derzck 0U JUZZZ I I Patented Apr: 30, 1929 UNITED, STATES PA 'lEN-T OFFICE.

'FREDERICK H. WIIJLCOX, OF CHICAGO, ILLIN'fiiS, ASSIGNOR TO FREYN ENGINEERING COMPANY, OF CHIGAGQ, ILLINOIS, A CORPORATION OF MAINE.

BURNER.

Application med April 21,

relates to improved burners of the type suit- I able for gas fired boilers, blast furnace stoves, or the like. The presentinvention is illustrated and will be described in connection with burners of the type in which air is supplied under pressure and also of the type in which the air is aspirated by -the flow of gas.

v Anobject of the present invention is to provide a burner which will cause the desired commingling of the gas and air and which will provide ventilatlon, whereby .the

.15 temperature of the burner may be kept down.

A further object is to provide a burner which may be very closely associated with the boiler, stove, orthe like, with which it cooperates, but which will not be overheated by said stove.

- A further object is to provide a burner for cooperation with a boiler, stove,'or the like, which will have the double advantage that the heat transfer from said boiler, stove, or the like, to said burner will be minimized and the burner will be maintained at a relativel' low temperature by the passage of air w ich may beat or near atmospheric temperature.

A further object is to provide a construction of burner "welladapted to meet the needs of commercial operation. Further objects will appear as the description proceeds.

Referrlng to the drawings- Figure 1 is a top plan view, artly in sec-' tion, of a burner embodying t e principles of the present invention, said view-being marked 1 1 in Figure 2;

Figure 2 is a View in elevation, partly in section, said view being taken along the line indicated by the arrows 2-2. of Figure 1;

Figure 3-is a sectional view taken alon the plane indicated by the arrow-s 33 0% Figure 1;

Figure 4 is a sectional view taken along the plane indicated by the arrows 4-4: of Fi ure 1;

- Figure 5 is a top plan view, partly in section, of a burn'er comprising a modification of the burner disclosed'in Figures 1 to 4, inclusive, Figure 1 being a view taken taken along the planes indicated by the line.

1927. Serial No. 185,370l

along the planes indicated by the arrows 5F of Figure 6;

F igure 6 is a view, partly in section, taken along the planes indicated by the arrows 66 of Figure 5;

Figure 7 is a sectional view taken alon the planes indicated by the arrows 77 0 Figure 5; and v Figure 8 is a plan view illustrating a detail of constructlon.

Referring first to Figures 1 to 4, the numeral 10 indicates the burner and the numeral 11 indicates the Wall of a boiler, hot blast stove or the like with which said burner cooperates. In the claims forming part of this specification said boiler, stove or the like will-be referred to asa combustion housing. Said burner 10 is provided with the elongated inlet portion 12, which inlet portion is adapted to be connected to the supply pipe 13, which in a preferred installation supplies air to the burner '10. Said burner 10 is also provided with the elongated inlet portion 14, which is adapted for connection to the supply pipe 15, which in the installation above referred to is adapted to supply gas. lationship along'the burner 10 are a lurality of sets of walls 16'16, each of w ich walls is disposed in a vertical plane, the walls 16 16 of each set flaring slightly from the rear toward the front of sand burner. Said walls 16-16 of each set of walls are connected by the backwall 17, said walls 17-17' being spaced from the rear wall 18 of the burner, whereb to provide a passageway 19 for air. Sai air passes aroundthe back wall 17 and the converging walls 16--'16 of each set of walls into the passageways 20. The gas inlet 14 communicates with the spaces 2121 between the walls 16- -16 of each set thereof. Inasmuch as said walls 16-16 provide an opening at their forward extremities, access is had at the forward-extremities of said walls 16-16 between the gas and air, whereby commingling of said gas and air'may occur. posed in thev path of the gas entering through each of the pasasgeways 21 is the bafiie 22. Said baflies in the structure shown in Figure 1 are elliptical in shape and are disposed symmetrically in the path of gas passing. through the passageways '21. Said baffies 22 comprise hollow columns, pro

Disposed in spaced renected to a source of gas supply 29.

may be drawn into the hot blast stove by an aspirating action, the air passing through said passageways 25-25 being used not only for combustion, but for cooling the forward edge portion of the burner.

ommunication to the passageway 19 in rear of the walls 1717 is controlled by the closure members 2626, which may be held immovably in place by nuts or other preferred holding means. The structure shown in' Figures 1 to 4, inclusive, does not show any control means for the supply of gas or air, said controls being independent of the burner shown in said figures. In the practice of the present invention it will be preferred to supply both gas and air under pressure.

Referring now to Figures 5 to 8, inclusive, a structure is illustrated which includes means for regulating the supply of air, the parts being so arran ed that the air may be drawn into the hot last stove by the aspirating action of the flow of gas.

The burner 27 shown in Figures 5 to 8 includes the gas inlet portion 28 which an elongated member adapted to be cloin; Y gas entering throu h the inlet portion 28 engages the diverging walls 3030, which are connected at the rear by the wall 31.

Said walls 3030 provide converging passageways 32 for the flow of gas. I

The burner 20 is provided with openings in its-top and bottom walls for the admission of air, which openings communicate with the spaces between the walls 30-30 of each set thereof. The passageways for air are indicated by the numerals 33-33. Baffles 34 are provided, symmetrically disposed relative to the passageways 33, which bafiies are hollow columns for ventilating a1r, which passageways are open at the top and bottom of the burner. Said baflles 34 are illustrated as qua'drangles arranged symmetrically about the axes of the passageways 33, said quadrangles being disposed in position to provide the proper commingling of air and gas and. to provide passageways for the commingled air and gas throu h the forward portion of the burner into t e hot blast stove. The burner illustrated in Figures 5 to 8 is provided with the spacing flanges 2 -24 providing the passageways 25, as described in connectlon with Flgures 1 to 4, inclusive.

roviding passageways 35- The air inlet passageways to the passageways 3333 are controlled by the valve plates 36 arranged at the two extremities of said passageways 33-433. A valve plate suitable for the urpose is illustrated in Figure 8, said va ve plate being provided 1 with the apertures 3737 and the closed portions 38. It will be clear that the flow o't-air maybe controlled by the proper posi-.

ti'oning of said valve plates 3636 relative to the passageways. 33. According to the show- I ing of Figure 6,. the two valve plates 36-36 are connected by lines 3939 to a lever 40 pivoted between said links. .Movement of said lever will therefore control the position of thetwo valve lates 36 -36.

In both .modi cations oithe structure hereindescribed the bfafiie members indicated by the numerals 22 in Figures 1 to land hot blast stove, a further cooling action is had at that portion of the burner which is in proximity to the hot blaststove. This cooling action is due to the cooling air which 1 is drawn through the passageways 25'25 by the aspirating action of the entering gas and air. Furthermore, by reason of the fact that the physical contact between the burner and the stove is reduced to a minimum, the heat conduction from said stove to said burner is minimized.

the present-invention have been described in detail, may modifications will occur to those skilled in the art. It is intended to cover all suchmodifications that fall within the scope of the appended claims.

Whatis claimed is- 1. In a burner, in combination, an air inlet member, a gas inlet member, spaced walls within said burner providing alternate passageways communicatingwith said air inlet member and said gas inlet member, and columns withinsaid burner providing vertieal passageways for the flow of ventilating air through said burner, said columns being disposed in baffiing relationship with certain of said passageways to cause the commin-- let member, a gas inlet member, walls pr0- viding passageways communicating with Though certain preferredembodiments of said gas and air inlet members and permitting communication between said passageways, and battle members comprising columns providing vertical passageways through said burner, said vbaflie means being disposed'in bafliing relationship with certain of said passageways to cause the commingling ofair and gas flowing through said passageways.

3. In combination, a combustion housing and a burner, said burner being provided with an air inlet member and a gas inlet member, means within saidburner providmg passageways commumcat ng with sald gas and air inlet members, said passageways having a common exit reglon, and baflle means in cooperative relationship with certain of said passageways, said baflle means comprising ventilators for cooling air, said burner being disposed Within the wall of said housing and having spacing flanges for spacing'said burner from said wall of said housing and for providing passageways for cooling air'drawn into said housing by the aspirating action of the. air and gas de-- livered by said burner.

is i 4. In a burner, in combination, an air inlet member, a gas inlet member, spaced walls within said burner providing alternate passageways communicating with said air inlet member and said gas inlet member, and columns within said burner providing pas, sageways for the flow of ventilating air through said burner, said columns being disposed in bafliing relationship with certain of said passageways to cause the commingling of gas and air from said gas and air inlet members.

5. Ina burner, in combination, an air inlet member, a gas inlet member, Walls pro viding .passageways communicating with said gas and air inlet members and permitting communication between "said passage-- -ways, and baflle members com risin columns providing passageways t roug said burner, said bafiie means being disposedin battling relationship with certain of said passageways to cause the commingling of air and gas flowing through said passageways. I

6. 'A burner having a plurality of air inlets, a pluralityof gas inlets and a plurality of columns internally of said burner, said columns having their axes vertically disposed and being open to the atmosphere at their extremities to permit the flow of ventilating air therethrough, said columns being dis osed in baflling relationship with certain 0 said inlets to cause the commingling of gas and air from said gas and air columns being disposed in baflling relation- 'ship'with certain of said inlets to cause the commingling of gas and air from said gas and air inlets, said burner being disposed within a wall of said housing and having spaced flan es. for spacing said burner from said wall 0 said housing and for providin passageways for cooling air drawn into sai ou'sing by the aspiratm action of the air and gas delivered by sai burner.

v Signed at Chicago, Illinois, this 18 day of April, 1927.

FREDERICK H. WILLCOX,

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