US2088531A - Steam drier - Google Patents

Description

July 27, 1937.

P. PASCALE STEAM DRIER Original Filed June 30, 1930 2 Sheets-Sheet 1 fadyzza/efiawa/e July 27, 1937.

P. PASCALE STEAM DRIER Original Filed June 30, 1950 2 SheetsSheet 2 Pwyzzafimmala Patented July 27, 1937 zrsasgsi STEAM DRIER Pasquale Pascale, New York, N. Y., assignor to Novo Patents, Inc., a corporation of Delaware Refiled for abandoned application Serial No.

465,049, June 30, 1930. This application September 5, 1936, Serial No. 99,647

2 Claims.

This invention relates to a steam drier, especially adapted for use in connection with the boiler of locomotive; marine and stationary engines and is asubstitute application -:for my abandoned application filed June 30, 1930, Ser.

No. 465,049, -The structure about to be described involves the same principle as that which characterizes the locomotive valves shown and described in various patents'heretofore granted to me, and

the main purpose of this invention, like that exupressed in said patents, is to dry or denude the steam of moisture and thereby improveits quality before it passes to the super-heater or" other point, where it is utilized. Howeven'in the present invention, there is no control of the steam in passing through the drier and therefore, the-device cannot be considered as a valve, as-the steam is permitted to pass freely-through the structure and it is capable of handling the maximum amount of steam that'the engine requires.

The inventio-n'contemplates the provision of a compact structure in which the steam in entering the casing or body of the drier is interrupted rected toward a; perforated cylinder," through whose perforations'thesteam passes after a further quantity of moisture has been taken out, there being provided within the chamber formed in 'the' main by the perforated cylinder, means returning to the boiler, the water extracted from the steam.

In the drawings illustrating the invention.

Figure l is a partial section and elevation of a drier constructed in accordance with my invention, the drier being shown within the dome of a locomotive.

Figure 2 is a sectional plan taken on line II of Figure 1.

Figure 3 is a detail fragmentary section of a portion of the lower part of the drier body, showing the formation of the lower part of the body that includes the drainage chamber.

Referring to the drawings, the numeral I designates the upper part of the body or casing, the numeral 2 the lower part. These two parts are connected by what I term a turbine 3, which is constituted by a ring 4 having therein numerous 55 vanes 5 suitably spaced apart to form attenushort' bolts 1, as clearly'shown inFigure 2;:Ihe

and denuded of a portion of its-moistureand diated openings Bythrough which the steam pri- 'marily enters inpassing into the drier body." The means for connecting-this ring with the upper and-lower portions 2 hithe -body is a series 0f ring 4' is preferablymadeup ofa-plurality of I sections, six being-shown, andeach-being provided with :ears 1 8 apertured forithe -passage #of short bolts 9, by which' the ringasections are secured together. It will be noted that-tha-vanes- 10 in the sections are so-"shaped that the steam in passing through the -turbine willbe in a direction tangentialto-the axis or center of the drier and as shown, even the vanesin an individual sectionare differently directed Qrshaped, thus 15 providing an element of thestructure that causes the steam currentsto bef-thoroughly mixed The upper part of the body is providedwith a conical dome I 0 secured thereto bybolts I I j the an eye bolt 'I2,-'whicl 1 serves as ar -means for conveniently lifting or handling-the drierwhen all of the parts are assembled. Y E

The numeral 13 designates-the-inner wall of the lower part of'the casing, and this inner -wall, 5 together with the outer walk-formsa substantially U-shaped drainage" chamber -'I4,{ having openingsliin the botto-m thereof, which will be later referred to -;=Within thischamber is -;an annular diaphragm I li 'whiclr' extendsentirely-J v30 around the body or casing and within the same. This diaphragm is secured to the top section I by bolts I6 and to the lower section of the body 1 or casing by bolts H, the bolts being provided with heads I6 at the upper portion and H at the lower, there being nuts I6" and H" on the ends of the bolts within the diaphragm, as shown. Interposed betwen the sections I and 2 of the drier body and the diaphragm I6, and surrounding the bolts I6 and I1, are similar sleeves I8 40 which serve to properly space the diaphragm 1 I6 from the outer wall of the casing, the diaphragm being held a little closer to the outer wall of the lower part of the casing, than to the inner wall.

Seated in an annular recess I9 in the upper edge of the inner wall I3, is a cylinder 29 provided with numerous small perforations or nozzles 2|, through which the steam must pass before passing to the connection that leads to the superheater. The upper end of this perforated cylinder is retained in an annular groove or rabbet 22, formed on the under side of the outer edge of the conical dome Ill. The inner upper edge of the part I bears against the upper edge of the cylinder, and the bolt H, which serves to connect the dome with the upper part of the casing, serves also to hold the upper portion of the cylinder in rigid position.

The numeral 23 designates the outlet or service pipe for connection with the superheater or other means for conducting the steam to the point where it is utilized. This pipe is provided with a flange 2 3, which is secured thereto by a number of bolts 25. Threaded into the flange 24 is a connection 26 connected by an elbow 27 to a valve fitting 28, through which the water extracted from the steam, passes back into the boiler, the water being admitted to the pipe 25 through the openings I5 in the floor of the drainage chamber 14. i

By spacing the diaphragm l6 from the upper and lower portions or sections I and 2 and from the turbine ring, a barrier is formed by said diaphragm that prevents the steam, as it enters the spaces between the vanes from passing directly to the perforations in the cylinder 29. The steam as intimated, in passing through the narrow spaces between the vanes, is divided into attenuated streams that, by reason of the arrangementor shape of the vanes, is directed in different directions and greatlybroken up, and in this breaking, the steam is denuded of a very considerable portion of its mixture that falls to the bottom of the drainage chamber. The steam then passes in an upward direction, into the space between the diaphragm and the wall of the perforated chamber, and then passes through the perforations in the cylinder and in so passing, the steam is denuded of further moisture which also falls into the drainage chamber and is led therefrom back into the bolier. As the steam passes into the perforated cylinder and especially through the upper portion of the cylinder, it is directed against the conical dome ID of the cylinder and is deflected downwardly and since this movement takes-place throughout the entire surface of the cylinder, the steam will be deflected downwardly toward the outlet or service pipe in the-same general direction, thus minimizing, as before stated, eddy current losses.

It will be understood-that while this drier is especially adapted for locomotive boilers, it is obvious that it may be employed in any situation with proper modifications where a superheater may be used or omitted, as the exigencies of the particular case may require.

What I claim is:

1. In a steam drier, in combination, a hollow casing having inlet openings in its wall, an outlet opening, and a closed top, a drying element within the casing and provided with numerous perforations and spaced from the casing Wall and extending to the top of the casing, a diaphragm surrounding the drying element and spaced both from the casing wall and said element with its upper end terminating below the perforations in the upper area of the drying element and forming with the wall of the casing and the drying element inner and outer conduits, whereby steam entering said inlet openings impinges said diaphragm, precipitating its excess moisture thereon, and is deflected upwardly in said outer conduit andfiows in part through said perforations positioned above said diaphragm, and in part through the perforations below the top of the diaphragm.

2. In a steam drier, in combination, a hollow casing comprising upper and lower sections, a cone shaped closure for the upper section extending downwardly into the casing, the lower section being formed with inner and outer imperforate walls .annularly spaced and connected by a bottom portion having drainage openings therethrough, a ring engaged between the wall of the upper section and the outer wall of the lower section and-havinginlet openings therein, a drying element within the casing and interposed between inner wall of the lower section and said closure and having numerous perforations therein, a diaphragm surrounding the drying element and spaced both from the casing wall and said element with its upper end terminating below the perforations in the upper area of the drying element, and forming with the wall of the casing and drying element inner and outer conduits, whereby steam entering the inlet openings impinges said diaphragm, precipitating its excess moisture thereon, and is deflected upwardly in the outerconduit and flows in part through the perforations positioned above the diaphragm and against the cone shaped closure, and in part through the perforations below the top of said diaphragm, and an outlet opening for the casing.

. PASQUALE PASCALE.

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