US1967884A - Gas burner - Google Patents

Description

July 24, 1934. F; c. HOHENSTEIN ,9 8

GAS BURNER Filed June 1, 19:51

F76: 4. i m mm BY 7% 4/ Y A TTORINEYS.

Patented July 24, 1934 UNITED STATES PATENT OFFICE Claims.

In providing burners for gas furnaces it is, of course, desirable to effect a perfect combustion of all the combustible elements of the gas, or fuel and it is equally important to bring about a heat 5 exchange from the hot gases to the means for conducting the heat whether air, water, or steam, to a point of use. In the present invention a burner isprovided which is very efficient in consuming the combustible elements of the gas and the burner is also arranged in a manner that the heat from such combustion is very largely retained, absorbed, and exchanged to the heat conducting medium. Features and details of the invention will appear from the specification and claims.

A preferred embodiment of the invention is illustrated in the accompanying drawing as fol-- lows:-

Fig. 1 shows a central section through the burner in place in a furnace.

Fig. 2 a plan view of the burner manifold.

Fig. 3 a section of the burner on the line 33 in Fig. 1.

Fig. 4 a plan view of the closure plate.

Fig. 5 a plan view of the pilot light manifold.

1 marks the fire box, 2 an ash pit and 3 an ash pit bottom.

The burners 4 are arranged with relation to the walls of the fire box to impinge the wall of the fire box at an angle, preferably about 45. These burners are connected by elbows 5 with a manifold 6, the manifold being preferably of annular form and receiving its supply through a pipe 6a.

The manifold rests on a spider 7. The spider has a center 8 through which a post 9 extends. The post is provided with a base 10 and the spider is locked on the post by a set screw 11. In this manner it is possible to adjust the spider to approximately the grate level of the furnace.

The spider is provided with shoulders 12 for centering the manifold. A deflector plate 13 rests on the burner 4, these burners being Y shaped and the shoulder formed by the Y forming a seat for the plate. The plate is provided with slots 14 permitting the ends of the burners to extend above the deflector plate. The deflector plate is split at 15 and the halves are secured by straps 16. This gives a dimension to the deflector plate permitting its convenient insertion into the furnace. The deflector plate 13 has a central opening 17 and a supplemental deflector plate 18 is arranged above this opening and spaced from the plate 13. It is secured to the burner manifold by bolts 19, these bolts extending through spacing tubes 20.

Immediately below the plate 18 an upright lighting manifold 21 is secured on the post 9 by a set screw 22. The manifold is supplied from a pipe 23 and pilot tubes 24 extend radially into position adjacent to two of the burners 4, these bumers being provided with retaining shoulders 25 for the pilot light. It will be noted that the discharge of the burner is closely adjacent to the wall of the fire pot so that the flames impinge the walls of the flre pot. An adjustment can be readily made to take care of the location of the burner by substituting connections for the elbows 5 giving the proper length to maintain this relation.

With this relation a maximum pull on the primary air is effected and the secondary air by reason of the overlapping arrangement of the plate 18 and the plate 13 provides a radial sideflow of the secondary air so that it is brought into definite ignition relation with the gases at the burner. Thus combustion is assured and at the same time the full temperature value of the flame impinging against the wall of the fire pot is maintained.

The burner has a flame opening, or jet 26 leading from the mixing chamber 27. Air inlets 28 converge at the mixing chamber. A gas inlet fltting 29 has a gas opening 30. The inlet end 31 of this opening gradually decreases toward a contracted portion 32 at the center and the inner end 33 of the opening is slightly flaring from the contracted portion 32, in other words, this opening is of Venturi shape. This adds materially to the movement of the gas and particularly with relation to its ejector effect so that there is less tendency of the'flame popping back into the burner when the burner is running low and the burner is given a greater capacity.

What I claim as new is:-

1. In a gas burner, the combination of a standard; a burner manifold on the standard; a series of burner tubes extending radially from the manifold and adapted-togive a flame direction to impinge a furnace wall; a deflector plate over the manifold; and a deflector plate having an outer edge adjacent to the discharge of the burner tubes.

2. In a gas burner, the combination of a standard; a burner manifold on the standard; a series of burner tubes extending radially from the manifold and adapted to give a flame direction to impinge a furnace wall; a deflector plate over the manifold having an edge adjacent to the discharge of the burner tubes, said deflector plate having an opening at the center; and an auxiliary deflector plate spaced from the first-mentioned plate and above the opening.

3. In a. gas burner, the combination of a standard comprising a base; an upwardly extending post; a manifold support on the post in the form of a spider; a burner manifold on the spider; burner tubes extending radially from the manifold and adapted to give a flame direction to impinge a furnace wall; and a deflector plate resting on the burner tubes and having a periphery adjacent to the discharge of the burner tubes.

4. In a gas burner, the combination of a burner manifold; a series of burner tubes extending radially from the manifold and adapted to give a flame direction to impinge a furnace wall; and a

Images