US1274487A - Nozzle and nozzle-mounting. - Google Patents

Description

L. WILPUTTE.

NOZ-ZLE AND NOZZLE MOUNTING.

APPLICATION FILED SEPT-26 I917.

1 27 1!: ,487. Patented Aug. 6; 1918;,

LOUIS WILPU'I'TE, OF NEW ROCHELLE, NEW YORK.

NOZZLE AND NOZZLE-MOUNTING.

Specification of Letters Patent.

Patented Aug. 6, 1918.

Application filed September 26, 1917. Serial No. 193,825.

To all whom it may concern.-

lie it known that 1, Louis \Vmruurn, a subject of the King of Great Britain, and a resident of New Rochelle, county of W estchester, in the State of New York, have in vented certain new and useful Improvements in Nozzles and N ozzle-Mountings, of which the following a true a'nd exact description, reference being had to the accompanying drawings, which form a part thereof.

The object of my present invention is to provide an improved nozzle and nozzle mounting construction. My improved nozzle is especially devised and adapted for use as a burner nozzle in retort coke ovens of the vertical [lue type.

In coke ovens of this type a burner nozzle construction has heretofore been employed in which the nozzle proper is formed with a conical lower end which is received in a conical upper end portion of the gas outlet from the so-called gas gun or gas supply conduit. Both the gas gun and burnor nozzle are subjected to high temperatures and in practice must be made out of refractory earthenware or lire brick material. Trouble has been experienced with the arrangements heretofore employed because of the dilticulty in renewing or rescating the nozzles as is necessary from time to time after the oven structure has been heated up. With the elongated taper joint between the nozzle and its seat in the prior construction initially made tight enough to prevent leakage, there is a marked tendency for the nozzle to become so cemented in its seat, after any appreciable period of use, as to make the ren'ioval of the nozzle very dillicult. particularly under the difficult conditions attending the removal of the nozzle when the oven is heated up. Not infrequently a nozzle is broken in removing it or freeing it from carbon deposits and fragments adhere to the seat thus adding to the dilticulty in properly seating a new nozzle, even though the seat were initially smooth and symmetrical, which is not usually the case. These difficulties are practically eliminated with the improved nozzle arrangement devised by me.

The various features of novelty which characterize my invention are pointed out with particularity in the claims annexed hereto and forming a part of this specification. For a better understanding of the invention, however, and of the advantages possessed by it, reference should be had to the accompanying drawings and descriptive matter in which I have illustrated and described a preferred embodiment of my in vention.

Of the drawings:

l 'iguro 1 is a partial sectional elevation of a coke oven in which my improved nozzle arrangement is employed.

Fig. 2 is a partial section of the oven taken at right angles to Fig. 1.

Fig. 3 is a section taken on the line 3-3 of Fig. 4-.

Fig. i is a plan view of a nozzle seat tile and nozzle seated therein, and

Fig. 5 is a diagrammatic elevation on a larger scale than Figs. 3 and 4t illustrating the nozzle seating.

In the drawings I have illustrated the use of my improved nozzle arrangement in a retort coke oven in which the horizontally elongated coking chan'ibers A are separated by heating walls provided with vertical heating flues P) connected at their upper ends by a horizontal passage (1; connnunica tion between the upper end of the llues B and the horizontal passage (3 being regulable by means of the slide brick or dampers D. Air inlet passages E lead to the lower end of the different lines B from regenerator chambers F beneath the coking chamber A. and gas supply channels G lead into the lower ends of the. various llues P) from the gas supply conduit or gas gun l. The dist ribut ion of gas from the gas gun among the various llucs ll supplied by it. is regulated by means of removable gas burner nozzles ll inserted in the lower ends of the channels (ir. The gas nozzles H may be cleaned and renewed from time to time as the conditions of operation make necessary by means of rods passed down into the lines B and passages D from the top of the oven through passages B formed in the upper portion of the oven structure in alinement with the flue passages B and normally closed at their upper ends by the covers- B Aside from the special features hereinafter referred to, pertaining to the shape and formation of the nozzles H and their seats, the oven construction above described is well known and in extensive use.

As shown, the upper portion of the gas gun or gas supply conduit I, is formed by a row of tiles J. Each tile J is formed in "new nozzle into its upper side with a cavity J which communicates with and in fact forms the .lower end of the channel G proper, and with a cylindrical port or passage J leading from the chamber J 3 to the gas supply channel I. The a pper portion of the channel .J is flared or made conical to form a seat J 2 for the corresponding nozzle H. The latter is made with a head or body portion and a reduced ,lower or spigot portion H, which is loosely received in the cylindrical portion of the .passage J. The body of each nozzle H is formed with a spherical surface portion H which is adapted to engage the conical seat surface J 2 of the nozzle seat tile J and from which the portion H" projects radially. Preferably I make this seat J truly conical by grinding the seat before incorporating the tile in the oven structure, and when the nozzles made in the ordinary way are not smooth and symmetrical I also grind the spherical seat engaging surface portion H Vith the construction described, as shown in Fig. 5, each nozzle H, and the conical seat surface J of the corresponding seat tile .are in contact practically only along the circular line 11'. This line contact does not depend upon a setting of the nozzle H with the axis of the axial passage H through the latfor truly vertical. Any appreciable deviation from parallelism of the axis of the nozzle and the axis .of the port J is prevented by the co-action of the spigot portion H of the nozzle with the peripheral wall of the port J in ,the seat ti le.

With the described construction the .extent of the surface of contact of the nozzle and nozzle seat member is sosmall that there is little probability of a nozzle .ever becoming so firmly cemented in its seat in ordinary .use as to make it difficult of removal. After an old nozzle has beenv removed from its seat a new nozzle maybe readily put in place, it being SHfi iClGHQOl' practically so, to drop the place to secure a sutliciently tight oint. Preferably the lower end vof .the tubular spigot portion of the nozzle is rounded off, as indicated at H, to facilitate its insertion in the funnel like space formed by the port J and the conical seat J The practical importance of my improvement will be appreciated when it is realized that renewals of nozzles must be made with com parative frequency and under very difficult conditions. The rods by which the nozzles are removed and put in place are exposed for a length of twelve or fourteen feet or so in the tines B and passage 0 to temperatures Gopies of this patent may be obtained for five cents each. by addressing the Commissioner after a very short exposure to the iflue temperatures. The difliculty of making renewals is furtherincreased by the fact that the oven top is quite hot under some conditions and the glare makes it very difficult for :the manipulator of the rod to see the gas nozzle at the bottom of the channel.

'lVhile in accordance with the provisions of the statutes I have illustrated and described the best form of my invention now known to me, it will be apparent to those skilled inthe art that .changes may be made in the form of any invention without departing from its spirit, and that some features of my invention may sometimes be used to advantage without a corresponding use of other features of the invention.

Having now described my invention, what I claim as new and desire to secure by Let ters Patent, is:

1. As a new article of manufacture a coke oven burner nozzle of refractory ear-thenware comprising a body portion formed with a spherical seating surface and a centering portion projecting radially from said spherical surface.

2-. A coke oven burner nozzle and mounting comprising in combination a seat member formed with a port outwardly flared to form a conical nozzle seat and a nozzle having a spherical seat engaging surface portion and a tubular portion projecting radially from said surface and loosely received in the restricted portion of said port.

3. A gas burner nozzle and mounting comprising in coi'irbination, a seat member of refractory earthenware formed with a port outwardly flared and ground to conical form at one end, and a nozzle having a seat engaging surface of spherical form, and having a tubular portion projectingradially from said surface and loosely received in the restricted portion of said port.

l. A coke o en burner nozzle and mounting con'iprising in combination a seat member of refractory earthenware formed with a portoutwardly flared and ground to conical form at one end, and a nozzle having a seat engaging surface ground to spherical form, and having a tubular portion projecting radially from said surface and loosely received in the restricted portion of said port. 7

L. WILPUTTE.

of Patents.

Washington, I). G."

Images