US1904237A

US1904237A - Regenerative chamber

Info

Publication number: US1904237A
Application number: US631119A
Authority: US
Inventors: William J Irwin
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-07-06
Filing date: 1932-07-06
Publication date: 1933-04-18
Anticipated expiration: 1950-04-18

Description

April 18, 1933. w J. |RW|N 1,904,237

REGENERATIVE HAMQER Filed July .6, 1932 2 Sheets-Sheet l Aprifl H8, 19 w. J. IRWIN REGENERATIVE CHAMBER 2 Sheets-Sheet 2 Filed July 6, 1932 Patented Apr. 18, 1933 umran STATES PATENT; OFFICE WILLIAM J. IRWIN, 0F WILKINSBURG, PENNSYLVANIA REGENERATIVE CHAMBER Application filed Italy 6, late. Serial Na. @1319 is to eliminate the above undesirablefeatures of current regenerativefurnace systems. An-

other object is to provide a construction which will effect this improvement without incidentally materially increasing the construction costs. Other objects may be inferred from the following disclosure of various specific forms of the invention as applied to an open hearths regenerator.

Having reference to the accompanying drawings:

Figure 1 is a horizontal cross-section taken from the broken line II in Figure 3.

Figures 2 and 3 are vertical cross-sections from the broken lines IIII and IIIIII in Figure 1, and

Figures 4 and 5 are cross-sections from the lines IVIV and V-V in Figure 1.

The above show a brick or tile checkerwork 1 having an upper chamber 2 and a lower chamber 3. The upper chamber is connected to the furnaces combustion chamber by an uptake 4 and slag pockets 5, and its lower chamber is connected by a flue 6 to either a stack, gas or air main, depending upon the furnaces heating cycle and whether this particular unit is preheating air or gas. Although the usual brick checkerwork is illustrated, it is to be understood that the invention is applicable to any form of heat regenerator unit. I

The uneven flow through the checkerwork 1 mentioned in the forepart of the specification results from the velocity of the gases through the

chambers

2 or 3, which carries it to their ends and there forces it upwardly or downwardly. Thus the most cooled part receives the least heat and the most heated part receives the least of the gases to be cooled.

In the present instance the top chambers neck 7 is constructed with a downwardly inclined roof 8 which is shaped to create a directed gas impingement against this end of the checkerwork 1, which is the point ordinarily receiving the least flow. Also, the flue 6 is constructed to angle upwardly, its gases striking the bottom of the'checkerwork 1 near the flues mouth. This last also creates a directed gas impingement against the bottom of the checkerwork 1 adjacent the flues mouth, which is another point heretofore ordinarily receiving the least fiow.

The above construction causes a substantially even gaseous flow through the checkerwork 1 because the gaseous stream strikes the checkerwork with their full velocities at the points which are normally neglected. The roofs of the

chambers

2 and 3 arepreferably constructed to gradually approach the surfaces of the checkerwork 1, and the gases which are deflected after impinging the checkerwork 1 at their points of. entrance pass to the ends of these chambers and are gradually forced through the checkerwork.

The essential feature of this invention is the direction of the gases flow against that part of the checkerwork which is normally neglected. Therefore, the flue 6, and the roof 8 of the neck 7 should merge smoothly with the top and bottom of the

chambers

2 and 3 so that a true directed gas flow results.

As far as .described, the invention applies particularly to a regenerator unit to whose chambers the gaseous flows are introduced in alinement with their longitudinal center lines. In practice, however, the flow introduction is frequently at an angle to these center lines. This also causes the aforementioned dificultles and may be remedied by the invention.

Such undesirable efiects may be diminished with. Preferably, these deflectors are in the formof a halved pyramid whose base and side portions fit the passageways corners which are most remote from the regenerator unit. Their apices do not completely reach to the other extreme of the side walls of these passageways. This leaves straight portions 9 on the original passageways and prevents a pocketing action of the gaseous flow. Also, the various proportions and shapes of all the disclosed matter may be changed to accommodate operating conditions encountered.

Although a specific form of this'i'nvention has been shown and described in accordance with the patent statutes, it is not intended to limit the scope thereof exactly thereto, except as defined by the following claims. f v

I claim:

' 1. The combination of a heat regenerating unit, chambers extending the lengths of the open sides of said unit, and passageways communicating with one end of each of said chambers at opposite ends of said unit, one or more of said passageways being constructed so their surfaces remote from said unit angle theretowards and terminate thereover.

2. The combination of a heat regenerating unit, chambers extending the lengths of the open sides of said unit, passageways communicating with one end of each of said chambers at opposite ends of said unit and at an angle thereto, and one or more deflectors arranged adjacent said unit and on the sides of one or more of said passageways forming acute angles therewith.

' 3. The combination of a heat regenerating unit, chambers extending the lengths of the open sides of said unit, passageways communicating with oneend of each of said chambers at opposite ends of said unit and one or more being at an angle thereto, and pyramidic deflectors constructed and arranged in the corner portions of one or more of said passageways remote from said unit and on their side or sides forming acute angles therewith.

4. The combination of a heat regenerating unit, chambers extending the lengths of the open sides of said unit, passageways communicating with one end of each of said chambers at opposite ends of said unit and at' an angle thereto, pyramidic deflectors constructed and arranged in the corner portions of said passageways remove from said unit and on their sides-forming acute angles therewith, the apex portions of said deflectors merging with the sides of said pa'ssageways on which they are constructed before reaching the opposite corner portions of those sides.

5. The combination of a heat regenerating unit, chambers extending the length of said least one of said passageways for further deflecting the gases into said unit. I

6. The combination of a heat regenerating unit, an intake passage that deviates sidewise to the regenerator unit, a deflector located on the side of the passage that forms an acute angle with the adjoining side of the regenerator unit in plan, said deflector being of variable width aslseen in successive cross-sections at right angles to the axis of the passage, and the maximum width of each cross-section being adjacentthat side of said passage most remote from said unit.

In testimony whereof, I have hereunto set WILLIAM J. lR-W IN.

- my hand.

unit to the top and bottom sides'thereof,

passageways communicating with one end of each of said chambers at opposite ends of said unit and terminating over said unit, the pas- CERTIFICATE OF CORRECTION.

Patent No. 1,904,237.

' -WILLIAM J,- IRWIN.

. it is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, line 53, claim 4, for "remove" read "remote"; and that the said Letters Patent should be read with this correction therein that the samemay conform to the record of the case in the Patent Office. a

7 Signed and sealed this l3th day of June, A.'D. .1933.

M. J. Moore.

(Seal) Acting Commissioner of Patents.

April' 18, 1933.