US718857A - Combined gas valve and burner. - Google Patents

Description

No. 718,857. PATENTED JAN.20,1903. E. L. MOORE. COMBINED GAS VALVE AND BURNER.

APPLICATION FILED OUT. 5, 1899.

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PATENTED JAN. 20, 1903.

13. L. MOORE.

COMBINED GAS VALVE AND BURNER.

APPLIGATIDN FILED OUT. 5, 1899.

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ENOS L. MOORE, OF PITTSBURG, PENNSYLVANIA.

COMBINED GAS VALVE. AND BURNER.

SPEGIFZUATION forming part of Letters Patent No. 718,857, dated January 20, 1903.

Application filed October 5, 1899. Serial lie-732,598. (No model.)

To all whom it ill/(by concern.-

Beitknown that I, ENOSL. MOORE, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in a Combined Gas Valve and Burner, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a side elevation, partly in section, of my improved gas valve and burner. Fig. 2 is a partial. bottom plan view .of the same, the valve being broken away in the right-hand portion. Fig. 3 is a top plan view, partly broken away; and Fig. 4: is a partial section on the line IV IV of Fig. 1.

My invention relates to the mixing of air with gases and the burning of the mixture, and more particularly to the burning of blastfurnace gases in connection with hot-blast stoves, though it is capable of use in other connections.

The purpose of the invention is to provide a simple and cheap construction which shall act as a combined burner and valve and by which the gas and air shall be thoroughly mixed before burning.

In the drawings, in which I show my improved device as arranged to be secured to a hot-blast stove, 2 represents an annular hollow casting having an inner depending plate portion 3, which flares downwardly and outwardly and the inner face of which forms a seat for the valve proper, 4c. The plate portion 3 is provided with an annular series of ports, the alternate ports being gas-ports connected to the annular reservoir in the casting 2 by depending branches 5. Between the branch channels 5 are the air-inlet ports 6, and these gas and air ports register with similar ports 7 and 8 in the hollow valve 4. Cavities 26 are preferably cored out between the ports to lighten the casting. The ports 7 and 8 extend tangentially, and a swirl or vortex action is thus afforded within the valve, which thoroughly mixes the entering gas and air. This action is assisted by the introduction of the gas in separatedjets between the air-jets.

The casting -1, forming the valve, is of general frusto-conical shape with the ports extending through an annular projecting ring portion 9. The valve is supported by bolts 10, secured in the ring portion 9 and passing through arc-shaped slots in brackets or flanges 11, formed on the casting 2. Spiral springs 12 surround the bolts above the brackets and bear against washers held by the nuts, thus holding the valve against its seat with a spring-pressure, the slots being of sufficient length to allow the valve to be turned so as to bring its port-s out of registry with the ports 5 and 6. The central open top of the valve 4. is closed by an upwardly-seating diskvalve 13, the stem 14 of which extends upwardly through a curved pipe-section 15 and is provided with a hand-Wheel 16. The valve 13 is guided by radial wings 13, projecting inwardly from valve 4, and serves to supply additional air where it is found desirable to increase the proportion of air. The valve 4 is rotated by means of a pinion 17, mounted on a shaft 18, carried in suitable bearings on the casting 2 and operated by a hand-wheel 19. This pinion intermeshes with an arc shaped rack-section 20, secured to the side of the valve by bolts 21.

22 is a flanged ring secured to a base-flange of the plate portion 3 by T-headed bolts 23, engaging slots 24, this ring being secured in proper position on the hot-blast stove.

25 is the gas-inlet for the annular reservoir 2.

The operation of the device is apparent. The valve being rotated to open the gas and air ports, the gas passing in through the port 25 will flow through the ports 5 and 7, and the air being drawn in through the ports (5 and 8 will become thoroughly mixed therewith by the alternate arrangement of the ports and the swirling action of the currents. This mixture being ignited will burn and pass through the refractory lining of the ring 22, and the (lame and products entering the stove and passing through the checker-work will heat it as in the ordinary hot-blast stove.

The advantages of my invention result from the simplicity of the device and its performing the functions of a valve, a mixer, and a burner.

Many variations may be made in the form and arrangement of the valve and its parts without departing from my invention.

I claim I 1. The combinationwith a gas-chamber, of a valve and burner having an annular series of ports part of which connect with the gaschamber, one of said parts being rotatably mounted, and air-passages leading to other ports of the valve; substantially as described.

2. A combined valve and burner consisting of a hollow rotary chamber having an annular vseries of ports leading thcreinto, and a gassaid gas branches and intermediate air-ports registering with air-ports between the gasports, substantially as described.

5. An annular gas reservoir having inwardly-opening branches, a hollow gas-valve seating against the branches and having intermediate air-ports, and means for turning the valve; substantially as described.

6. An annular gas reservoir having inwardly-opening ports, a hollow valve seating against the ports and having openings registering therewith, and a valve closing the open top of the rotary valve; substantially as described.

7. A combined valve and burner having an annular series of tangential ports, and a gassupply connected to a portion of the ports, the other ports being open to an air-supply; substantially as described.

In testimony whereof I have hereunto set my hand.

ENOS L. MOORE.

Witnesses:

H. M. OORWIN, Gno. B. BLEMMING.

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