US468617A - Regenerative furnace - Google Patents

Description

(No Model.) 2 SheetsSheet I W. HILL.

REGENBR'ATIVE FUENAGE. 4

No. 468,617. Patented Feb. 9, 1892.

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W. HILL. REGENEEA TIVB FURNACE.

Patented Feb. 9, 1892..

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\VILLIAM HILL, OF COLLINSVILLE, CONNECTICUT.

REG EN ERATIVE FURNACE.

SPECIFICATION forming part of Letters Patent No. 468,617, dated February 9, 1892. Application filed January 26, 1886. Serial No, 189,638- (No model.)

To all whom it may concern:

Be it known that 1, WILLIAM HILL, of Collinsville, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Furnaces for Burning Hydrocarbons, of which the following is a full, clear, and exact description, whereby any one skilled in the art can make and use the same.

Myimprovement relates to the general class of metallurgical furnaces used 'for heating and melting metals, and particularly to furnaces adapted to burn gaseous or vaporized fuel.

The object of my invention is to provide a furnace of the reverberatory class, with means for utilizing waste heat. for the purpose of heating the generator, and thereby econo- Inize in fuel.

My invention consists in the novel constructions and their combinations, as hereinafter specified, and particularly pointed out in the claims.

Figure 1 is a View in vertical longitudinal section of the furnace on plane denoted by lineC D of Fig. 2. Fig. 2 is a View in horizontal section of the furnace on plane denoted by line A B of Fig. 1. Fig. 3 isa view in vertical section through the furnace on plane denoted by line E F of Fig. 1. Fig. at is a detail side view of the damper-chamber on enlarged scale. Fig. 5 is a detail front view of the same on enlarged scale. Fig. 6 is a detail view, on enlarged scale, through the damper-chamber on plane denoted by the line G 1-1 of Fig. 4. Fig. 7 is a View in crosssection through the damper chamber on plane denoted by line L N of Fig. 4.

In the accompanying drawings the letter a denotes a furnace having the combustionchamber Z7 and the regenerative chambers c, c, 0 and 0 all of which contain checker-work of brick, while in two of them this checker-work surrounds generators ff, in which petroleum or other hydrocarbon is converted into vapor by the application of heat. The relative sitnation of these chambers is shown in Fig. 1, where c and 0 denote the regenerative chambers for heating air only, while the chambers c and c are the ones that contain the vaporgenerators f f completely inclosed on their sides by the checker-work of brick, which absorbs the heat not taken up by the generators pipes that the steam or oil may pass through it before entering the generator proper, thus forming a superheating device. The vapor may in like manner be heated by passing it through pipes or the vessel in the chamber after leaving the generator. The regenerators c and c and the gen crater-chambers c and 0 Fig. 1, are connected with the chimney by means of the tines g, ,9, and 9 respectively. At a convenient part of the passage-way'or opening from these flues to the chimney 0r stack, Fig. 2, the reversingvalves (shown at 7L, Figs. 6 and 7) are located, and their office is to change the direction of the draft, so that the heat will flow through one or the other of the two sets of chambers which are used in the form of furnace herein illustrated. The intensity of the draft through the lines is controlled by other dampers located in them, but are not shown in the drawings, as they are of common construction and are not material to my invention.

The method of operating the furnace is as follows: The petroleum or other hydrocarbon enters the generator f through the pipe 1', Fig. 3, while steam enters it through the pipe j, the generator f being the one shown on the right in Fig. 1. Waste heat from the furnace is used to produce a vapor from the oil and steam within this generator f, which vapor passes out by the pipe 70, Fig. 3, and over the top of the furnace to the chamber 0', which it enters at a point under the generatorf in that chamber, as shown in Fig. 1. The vapor enters from both the front and rear of the furnace through the pipes denoted by Z and Z in Fig.3, the flue 9, Fig. 2, that connects the chamber a with the stack, being closed at this time, as shown in Fig. 6. The vapor entering this chamber rises up through the checker-work of brick and around the generator f, which is idle, and enters the furnace in the direction indicated by the arrows in Fig. 1, and it here meets hot air which has entered through the valve-boxes and passed through the hot checker-work in chamber 0, and it then enters the furnace, as denoted in Fig. 1. The combined air and vapor are used to produce the flame in the combustion-chamber Z) of the furnace, and the products of such combustion pass from this latter chamber down through the chamber c and 0 through the fines g" and g and through the reversing-valves h, (see Figs. 6 and 7,) and thence into the chimney-flue. The furnace having been run in the manner above described for a sufficient length of time to heat the brick checker-Work in the regenerator c and the chamber a to the proper temperature, the drafts are completely reversed by reversing the valves h. The supply of steam and oil is also shut off from the generator f and turned into the generator f by means of valves, so that the flames then travel in the opposite direction from that hereinbefore described and shown by the arrows in Fig. 1, and the generatorfis used for a time While the other lies idle, and the vapor from the generator f enters the other chamber and passes through it into the furnace. The vapor-chamber has the outletpipe 70 through its wall and the steam enters the chamber n through the steam-supply pipe or and is forced into the vapor chamber through an opening in this end wall, in which opening is arranged the end of the oil-supply pipe "5 in such position that the force of the steam draws the oil in with it.

I claim as my invention- 1. A regenerative furnace consisting of the hearth or combustion-chamber, an air and a gas regeneration chamber arranged on each side of the hearth, an oil-vaporizing chamber located in and communicating with each of the gas-regenerators, as described, and suitable fiues andreversing-valves foroperating a reversing-furnace, as described.

2. In a regenerative furnace, the combination of hearth or combustion-chamber, an air and a gas regenerative chamber arranged at opposite ends of the combustion-chamber, oilvaporizing chambers embedded in the checker-work of the two gas-regenerators, oil and steam conducting pipes opening into the vaporizing-chambers, and outlet vapor-pipes leading from the vaporizing-chambers into the gas-regenerative chamber at the opposite sides thereof and below the vaporizing-chainbers, substantially as described.

WILLIAM HILL.

Vvitnesses:

A. G. TANNER, H. R. WI LIAMS.

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