US2204719A - Combination gas and oil burner - Google Patents

Description

' .lune 18, 1940. J. s. zlNK COMBINATION GAS AND UIL` BURNER Filed Oct. 14, 1958 5 Sheets-Sheet 1 O3 b.. NOI

N ww www@ June 18, 1940. -J s zlNK 2,204,719

, COMBINATION (rAS AND OIL BURNR l I Filed Oct. 14,-1938 5 Sheets- Sheet 2 June 18, 1940. J. s. zlNK 2,204,719

COMBINATION GAS AND OIL BURNER Filed Oct. 14, 1938 3 Sheets-Sheet 3 Patented June 18, 1940 UNITED STATES PATENT oi-FlcE 2,204,119 coMmNA'noN Gas AND on. summa John s. zink, Tulsa, om.

Application October 14,

4 Claiml.

This invention relates to improvements in burners and more particularly to a combination oil and gas burner capable of burning various types of gases without adjustment.

One of the objects of the invention is to provide a sectional burner to permit a plurality of gaseous fuels of different types to be simultaneously burned with the same burner structure.

Another object is to provide a sectional burner which will allow one section to be shut ofi.' in the event that the furnace becomes overheated.

Another object is to provide a burner which may be used for simultaneously burning oil and different types of gases or which may burn a plurality of types of different gases when the oil is shut off. p

A further object is to supply a burner capable of burning all types of refinery gases without adjustment of the burner. It is designed to accommodate either natural or forced draft used with cold or preheated air;

An additional object is to furnish a combination oil and gas burner in which the gas burner is of sectional construction and so designed as to allow the oil burner to be adjusted relatively thereto whereby the head of the oil burner may be moved toward or away from the gas burner so that the secondary air can be properly admitted to the oil flame.

With the foregoing objects outlined and with other objects in view which will appear as the description proceeds, the invention consists in the novel features hereinafter described in detail.

illustrated in the accompanying drawings, and more particularly pointed out in the appended claims. r

` In the drawings:

Fig. 1 is a horizontal sectional view oi' my improved burner partly in elevation.

Fig. 2 is an elevation of the outlet or discharge end of the same partly broken away and in section.

Fig. 3 is a similar view of the inlet end of the burner.

Fig. 4 is a fragmentary elevation partly in `vertical section of a modification of the invention, and showing means for adjusting the door which controls the secondary air.

Fig. 5 is a front elevation of a modification of the gas burner head.

Fig. 6 is a similar view of another modification of said head.

Referring to the drawings, 1 designates a portion of a furnace wall having a doorway 3 which is partially lined by the metal wall .frame 9 of my burner structure. The inlet end of the frame is flared as shown at ill to facilitate duction of secondary air.

The frame, as best shown internally with inwardly the introin Fig. 2, is provided extending substantially 193s, sei-m Naizsaovz (o1. 15s-11) diametrically opposite ears il connected by bolts I2 to a spider I3 having a number of openings extending therethrough for the slidable support of a pair of gas tubes I4 and an oil tube l5. The discharge end portions of the gas tubes converge toward one another as shown at i8, and merge into a sectional burner head l1. The latter, as best shown in Fig. 2, consists of lhollow sections I3 and II which are provided with apertured ears 2l, secured together by bolts 2l (Fig. l). Each section of the head is provided with a number of radiating arms 22, each of which preferably` tapers toward its end and is provided with opposite walls 23 that converge toward the discharge end of the burner and are provided with seriesoi" apertures or ports 24. Due to this arrangement, gas issuing from confronting ports of each pair of arms will impinge in a position forwardly of the burner head.

Each of the sections of the head also has a wall 26 extending diametrically across the burner head and provided at its medial portion with a semi-circular part 26. When the sections of the head are assembled, `the parts 2i of the two sections are opposite one another and form a hole or tube to accommodate the tube I5 which supplies oil to the oil burner head 2l; the latter being positioned centrally of the. gas burner head and being adjustable inwardly and outwardly so that the cil burner head 28 can be positioned properly to receive secondary air which flows to the same between the spaces intermediate the arms 22.

As best shown in Fig. l, the tubes il and l5 may be locked in any position of adjustment by means of screws 23 which extend through portions of the spider I3 and impinge against the outer surfaces of the tubes.

Instead of making the gas burner head as in Figs. 1 and `2, it may be made as shown in Fig. 5 wherein each arm 30 of the burner has a single series of discharge ports 3l at one side thereof. As the ports are in the same side of each arm, obviously the gas discharged from the burner head has a tendency to fiowin a whirling manner, which is beneficial in the burning of certain gases.

Instead of using radiating arms for the gas burner head, I may employ parallel arms 32 as illustrated in Fig. 6. In that event each section of the gas burner head maybe provided with one or more straight arms 32, one only being shown on each section 33 in Fig. 6. y

The inlet end portion of each of the tubes Il terminates in an aspirator funnel 3l provided with Aa spider 35 which supports a dome shaped gas inlet element 36 having a discharge port 31. Gas is supplied to each of the elements 36 by a pipe 33 on which a disc 33 is adjustably arranged. The funnels admit primary air and the 'amount admitted canof cou. se, be adjusted by the registered discs 89. V

Oil is introduced into the tube l through a nipple 40 and it may beburned in conjunction with steam which is introduced into the tube Il through a pipe 4|, both of these parts being arranged, of course, at the inlet end of the tube The mouth III which admits the secondaryair (in natural draft) ls.controlled by a register plate 42 that is slidably mounted on the tubes i 4 and I5. and such plate is preferably provided with a lining plate 4! that has projections 44 which contact with the plate 42 for holding the main portions of these plates in spaced relation whereby some of the secondary air may pass through such space and dissipate the heat. Bolts 45 pass through the projections 44 and through the plates and hold the latter in assembled relation.

`In the event that the burner is used with a forced draft, a plate 4l (Fig. 4) receives the gas tubes i4a and the oil tube lia, and is secured at 41 to the outer wall 4B of the furnace, such wall being spaced from the inner wall 49 of the furnace whereby the forced air used for draft purposes will be conveyed into the wall frame 9a.

To provide for regulation of the secondary air, a plate 42a is arranged between the plate 46 and the mouth of the wall frame and is mounted to facilitate its movement toward and away from said mouth. The register door or plate 42a has projections 44a extending toward the plate 46, and each projection is secured to the inlet end portion of a supporting rod 49a. 'I'he rods are slidably supported by sleeves 50 integral with the plate 46 and each rod is provided at its outer end with a handle 5I. Obviously the operator uses such handles in moving the plate 42a toward or away from the frame 9a.

In operation, one kind of combustible gas may be fed to one of the sections of the gas burner head, and another kind of combustible gas to the other one, and at such time oil may be supplied by means of the head 28 and, of course, during burning of such fuels the head 28 may be axially adjusted or if desired can be entirely removed from the assembly. Referring now to the advantages of thel invention, the following. .may be noted.

Where large combination gas and oil burners are required, 4my improved burner meets the requirements of the rening industry as it is a premix type using both primary and secondary air. As each section of the gas burner has its own aspirator formed partially by the funnel 34, it will aspirate approximately 27% of the air with the gas and mix it before it is passed through the radiating arms of the burner head. Each aspirator has one large gas orifice orport 31 which is free from plugging even when used on wet or dirty' gases. Each aspirator has its own air door 39 which permits the control of the primary air.

All types of refinery gases may be burned without adjustment of the burner, and of course, the structure is designed for either natural or forced draft and no additional parts are required for an installation using a wind box, as in that event, the bolts 45, shown inFig. 1, may be replaced by the rods 48a shown in Fig. 4, and the plate 42, shown in Fig. 1, might be apertured to receive the bolts 41 shown in Fig. 4, which bolts are used in securing the supporting plate to the front wall of the furnace.

y oil burner head being axially 'I'he herein described and illustrated embodiments ofthe invention have given satisfactory results and it will be apparent to those skilled in the art. after an understanding of the invention, that other changes and modifications may be made without departing from the spirit of and scope of the invention. and it is intended that all matters contained in the above description or shown in the drawings shall be interpreted as illustrative and not in a limiting sense.

What I claim and desire to secure by Letters Patent is:

1. In a structure of the character described, a wall frame, a spider secured to and extending across said frame, an oil tube extending through the medial portion of said spider and provided at its outlet end kwith an oil burner head, gas-conveying tubes extending through the spider at oppositesides of theV oil tube and terminating at their outlet end portions in extensions which converge toward said oil burner head. a sectional gas burner head surrounding said oil tube and having sections connected to said extensions of the gasconveying tubes, and means detachably connecting the sections of the gas burner head together.

2. In a structure of the character described, a wall frame, a spider secured to and extending across said frame, an oil tube extending through the medial portion of said spider and provided at its outlet end with an oil burner head, gasconveying tubes extending through the spider at opposite sides of the oil tube and terminating at their outlet end portions in extensions which converge toward said oil burner head, a sectional gas burner head surrounding said oil tube and having sections connected to said extensions of the gas-conveying tubes, and means detachably connecting the sections of the gas burner head together, said oil tube being axially adjustable relatively to said gas burner head whereby the oil burner head may be moved toward or away from the gas burner head. 4

3. In a structure of the character described, a wall frame, a spider secured to and extending across said frame, an oilV tube extending through the medial portion of said spider and provided at its outlet end with an oil burner head, gas-conveying tubes extending through the spider at opposite sides of the oil tube, and a sectional gas burner head surrounding said oil burner tube and having sections connected to the outlet end portions of the gas-conveying tubes, said oil tube and adjustable through the central portion of said gas burner head.

4. In a structure of the character described, a wall frame, a spider secured to and extending across said frame, an oil tube extending through the medial portion of said spider and provided at its outlet end with an oil burner head, said tube being axially adjustable in the spider, means for securing the tube to the spider, gas-conveying tubes extending through the spider at opposite sides of the oil tube, each gas-conveying tube being axially adjustable in the spider, means for securing the gas-conveying tubes to the spider, and a sectional gas burner head surrounding said oil tube and having sections connected to the outlet ends of the gas-conveying tubes, said gas burner head having a centrally disposed aperture in which the oil tube and oil burner head are axially adjustable.v

` JOHN S. ZINK.

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