US296175A - Superheater - Google Patents

Description

(No Model.)

GJQNES. SUPERB-EATER.

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- UNITED STATES GOMER JONES, O13 WASI-IINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TO THE STANDARD VAPOR FUEL IRON AXD STEEL COMPANY OF NEYV YORK.

S'UPERHEATER.

SPECIFICATION forming part of Letters Patent No. 296,175, dated April ,1, 1884.

Application filed January 4, 1884.

(No model.)

To all whmn, it mag concern:

- of the United States, residing at Washington,

in the District of Columbia, have invented certain new and useful Improvements in Superheaters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to means for heating retorts and steam used in generating vapor fuel from petroleum.

The object of the invention is to utilize the waste products of combustion.

r The invention consists of constructions and combinations, all as will hereinafter be described and claimed, reference being had to the accompanying drawings, in which- Figure 1 represents alongitudinal section; Fig. 2, a vertical section through one of the fines of the furnace; Fig. 3, transverse sections through the furnace, the full lines indieating a section on line 2 a, Fig. 1, and the interior dotted lines showing a section of the fire-brick above the arches. The exterior dotted lines show the passages for the superheater-conncctions, which are shown in full lines,

their position being that shown in Fig. 2.

A represents the wall of casing, and B the retort. This retort and its connections are substantially the same as that shown and described in a pending application, No. 117,160, filed January 11, 1884, for generating hydrocarbon vapor from oil by means of steam which is superheated in the chamber between the j ackets B and B", after passing through the jacket B of the vaporizer 13*. No claim is therefore made in this application to that derice. The casing may be of any desired shape, and is provided with a mixing-chamber, A, and a combustion-chamber, A The mixingchamber is divided into two parts, a and a. The part a is provided with a doorway, 0?, for the admission of air. If desired, the walls of the chamber may be provided with apertures a (shown in dotted lines, Fig. 1,) for the admission of air to all sides of the gas-supplier a. The part c is properly the mixing-chamber, and consists of arches a, sprung from side to side of the chamber A. These arches are formed of rows of fire-bricks separated from each other by retainingbricks (L The rows in the arch above the lower arch register with the space between the rows in the lower arch, and the rows in the top arch register with the spaces between the rows in the second arch. In other words, the rows in the several arches are arranged in a staggering manner to one another. The retaining-brick a in the different arches are also arranged in a staggering manner to each other-that is to say, the bricks shown in dotted lines in the second arch, Fig. 1, are on substantially the same line as the space between the retaining brick in the lower or upper arch-so that the currents of air and gas will be still further broken by the deflection of the retaining-bricks. The air and gas passing through these arches are thoroughly commingled and burned at the top arch, which forms thebottom of the combustion-chamber. The walls of this chamber are lined with fire-brick, and the chamber is of octagonal shape to bring the corners of the chambers nearer the retort, which is seated in any desired manner in the top of the casing. In each of -the corners are short cross fines or ports a, connecting the combustion-chamber A with the downflues A which are connected in any desired manner to the flue A, leading to a chimney. In all of these fines is a superheating-drum, O, heated by the waste products of combustion, which pass downwardly around them. These drums are provided with a supply pipe, c, which opens or terminates near the top or end of the drum opposite to that which it enters, so that the steam will pass to the exit-pipe c in the path of the products of combustion. By this arrangement the steam will constantly be absorbing heat until it passes out through said pipe 0. The drums may be connected together by pipesc so that the steam maybe passed from one drum to the other, and thus be more completely rarefied and superheated without reducing the pressure. This result is accomplished in the following manner: The steam from the boiler. passes by pipe 0 and c to the first drum, when it expands and escapes to the second drum by a pipe of the same size as that by which it entered the first drum, and so on through all the drums to pipe 0*, which connects it with pipe 0 of the retort. It will readily be seen that the pressure of the steam in pipe 0 will force the steam out of the drum through pipe 0 at the same pressure as that by which it entered said drum, as the pressure caused by the increased heat of the steam is compensated for by the expansion allowed for in the drum. In other words, if the drums were a mere continuation of and the same size as the pipes c, the pressure caused by the expansion of the steam would be augmented to such an extent as to render it undesirable. Furthermore, the steam could not be heated to as great an extent in such a device, as the pressure caused by the superheating would render the steam incapable of absorbing a great heat for lack of room to expand in. By my device the steam can be heated to an extent only limited by the temperature of the products of combustion, and to such a point that the steam can be readily turned into its elemental constituents (hydro gen and oxygen) bypassing it over hot bricks a much desired result, as the steam is used in addition to vaporizing the oil as a vehicle for the carbonaceous vapor which is conveyed to a furnace and burned.

I make no claim in this application to the construction of the furnace, as that formsthe 2. The combination of the downflues of a I furnace and superheaters in said downflues, and connected together substantially as described.

3. The combination of the downfiues of a furnace and superheaters in said flues, consisting of drums connected with each other, and having inlet-pipes terminating near the top of the drums and outlet-pipes near the bottom of the drums, substantially as described.

4. In a furnace, a series of downflues 'having supe'rheating-drums located therein, said drums connected together by pipes, the exitpipe of one drum being the inlet-pipe of the next drum, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

G OMER JONES.

Vitnesses:

SAML. G. MILLS, M. F, HALLncK.

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