US1877617A - Pump - Google Patents

Description

|-|. STROM 1,877,617

PUMP

Sept; 13, 1932.

3 Shgets-Sheeu 1 v Filed June 3, 1929 INVENTOR FIG flame: TJnw/w TTORNEY Sept. 13, 1932. H, STRQM 1,877,617

' PUMP Filed June 3. 1929 3 Sheets-Sheet 2 iUTORN EY H. STROM Sept. 13, 1932.

PUMP

Filed June 3, 1929 3 Sheets-Sheet I. It

FIG. 5

INVENTOR HERBERT $790M BY I 7ATTORNEY Patented Sept. 13, 1932 UNITE-D s'rA'res HERBERT S'I'BOH, OI ARLINGTON, mm mm, ASSIGNOB .150 I II 00., O! CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS PATENT OFFICE Application ma June a; 1m. Serial No. 887,982.

This invention relates to improvements in pumps, and more particularly. to casings for use in connection with centrifugal and'hke pumps.

An object of the present invention is to provide an improved pump construction,

which is neat and compact in arraggement,

and in which the casing may be re ily assembled to and removed from, the remain- I ing parts of the pump assembly.

A further object is an improved provision for disposing a plurality of openings in the pump casing, in such a manner that certain of the openings may be utilized to serve, selec- 1 tively, as a suction opening or as a bearing support for the pump impeller shaft.-

An additional object is to provide an improved pump casing which includes a plurality of independently removable sections,

8 one of the sections being provided with a pump discharge opening, and includin means for supporting the casing in-selecte positions relative to the base, so as to vary the position of the pump discharge. This provision insures maximum flexibility and adaptability in service, to utilize to best advantage, any limited available space.

Further objects and advanta s will appear from the following detaile description of parts and the accompanying drawings, in which Fig.1 is a front elevation, partially in section, of apreferred form of a pump constructed in accordance with the present in- .vention; Fig. 2 is a sectional elevation along the line 22 of Fig. 1; Fig. 3 is a diagrammatio illustration of a preferred form of pump, as viewed from the line 3-3 of Fig. 2, and showing in dotted lines a possiblealtered position of the pump casing, and Fig. 4 is a diagrammatic illustration of the same device, as viewed from-the line 3-3 of Fig. 2 and showing in dotted lines a still difierent al- 'tened position of the pump casing.

It will, of course, be-understood thatthe present detailed description of parts, and the accompanying drawings, relate to a single preferredwxecutional embodiment of the invention, and that substantial changes may be madeinthe described construction and arrangement of parts without departing from 'mately 30 degrees from a perpendicular line which the feet 16 serve as the support for. the

equivalent. This flange is, by preference,

the spirit and full intended scope of this inventlon.

Referring by numerals to the drawings, 10 designates, generally, a pump casing, which is by preference, of a type adapted for use in ce'ntrlfugal pum s, or the like. This casing includes, by pre erence, a plurality of independently removable sections, such .as'indicatedat 11 and 12, each being formed substantially symmetrically about a vertical center line, as best. seen in Fig. 2. These sections are, by preference, jointedalong aflange portion 13, on each section, which provide a parting for the sections along a line approxias viewed in Fi 1. These sections are re movably secure to each other by means of bolts 14 along the flanges 13. One of the sec tions, such as that indicatedat 11, includes, by preference, lugs or feet 15 and 16, which serve as means for supporting the casing 10 upon a base 17 It is apparent from the preferred illustration, that certain of the lugs, say 15, are disposed approximately 90 degrees from the other In and that a flat portion 18 provided on eac lu is disposed, by preference, equi-distantly rom the center of the pump caslng 10. B this provision, it will be evident that the v0 ute 10 may be altered in position in respect to the base 17 For exa ample, in oneposition, as best seen in Fig. 3, thevolute 10 may be supported on the lugs 15, and by the simple expedient of rotating the casing, another position may be obtained in casing, as best seen in dotted lines in Fig. 3. This varied positioning of the casin is accomplished without altering the istance {160m the base to the center axis of the volute Rotatably disposed within the casing 10, is a pump impeller 19 of any conventional construction, which. is securely attached to a flange portion 20 by means of bolts 21 or the formed integrally with a pump shaft 22, which may be driven from any suitable source of power. In the preferred example, the sections 11 and 12 form openings 23 and 24, which are disposed substantially concentric appearing.

with respect to the axis of the shaft 22, and are, by preference, equally spaced from a vertical center line through the casing, as best seen in Fig. 2. These openings are formed of identical shape and size, and are provided with similar flange portions 25 and 26. These flanges are, by preference, identically drilled or tapped, as will appear from the several figures, for a purpose hereinafter clearly appearing. It will be evident that either opening may serve as a pump intake opening, or as a bearing support for the shaft 22. By this arrangement, the casing may be laterally reversed, without altering the position of the pump impeller, for a purpose hereinafter The shroud sides of the impeller 19 follow closely the inner contour of the volute 10, and certain adjacent portions of the shroud and casing are disposed substantially at the same angle, to insure a running fit and to prevent foreign matter from lodging between the casing and the rotating portions.

The section 11 of the casing, includes a discharge opening 27 which is provided with a flange portion 28. The center line through this opening is substantially parallel to a line joining the flat portions of one pair of the feet such as 16. By this provision, when the casing is supported upon the lugs 16, the discharge opening is positioned horizontally, as shown in dotted lines in Fig. 3. When, however, the casing is supported on the paired lugs 15, .the discharge is disposed vertically as shown in full lines in Fig. 3. As noted above, the entire casing may be reversed upon the shaft, and when so disposed the discharge opening may assume other positions, as indicated in Fig. 4. By this: arrangement, the proper position for the discharge opening may be obtained for any direction of rotation of the pump impeller, thereby adapting the unit to a variety of service conditions, without the needless expense of constructing and carrying in stock, a large variety of parts to meet the requirements of each particular installation.

In certain types of pumps, such as pulp or trash pumps, it is essential to provide conveniently disposed clean-out openings. Due to the reversible nature of the described casing, it is essential that this opening always be disposed, in an easily accessible position. In this device a clean-out opening 29 is provided in the section 11, and is, by preference, disposed between the feet 15 and 16. This opening is adapted to be closed by a removable cap 30. It Wlll be apparent that this cleanout opening is always .in the proper position to facilitate the removal of solid particles from the interior of the casing 10. In some cases flushing of the spaces between the impeller and the volute may become necessary, and is provided for by flush-out openings 31 disposed about the casing.

In the preferred device above described, it

will be noted that the openings 23 and 24 in the casing are adapted to be utilized either as intake openings or as bearing supports, depending upon the particular selected position of the pump discharge opening. A combined bearing and stufling box 32 is removably secured to either one of the flanges 25 or 26, by means of bolts 33 or the equivalent. This housing includes an inner bearing 34 for the adjustably secured to the housing 32, in order 7 to apply pressure upon the packing 35', to

-mainta'in water seepage at a minimum. It

will be noted that water seepage along the shaft 22 is arrested by means of a rotating deflector 39, fixedly attached to the shaft 22, and by means of a stationery deflector 40, fixedly secured to the housing 32. By the above described arrangement, it will be seen that the housing, including the inner bearing 34, water seal ring 36, packing 35, gland 38, and the deflectors 39 and 40 are removable, together, from, or may be readily attached to, either flange portion 25 or 26, of the pump casing 10, as a unit. This provision tends to facilitate the assembling and dismantling of the device. It further provides a unit assembl which is readily handled and removed from the casing, in order to permit the casing to be reversed.

Certain advantages will be apparent from the constructional features of the parts above described. In his device, the parts are so arranged and formed, as to provide a maximum.

adaptability to different service conditions. The position of each part may be altered with respect to the assembly, so as to permit the complete utilization of the available space. It' will be apparent that the parts of the assembly are sturdy and durable in construction. Further, the improved casing is adaptable to a varied use in service.

I claim as my invention:

1. In a centrifugal pum a casing including a lurality of detacha ly connected sections fbrming an intake fitting on each side of the casing, a discharge conduit associated with one of said sections, a base, means for 1 detachably connectin said sections to each other and means peripherally disposed on the casing, for securing the casing to said base, whereby said discharge conduit may be selectively disposed either adjacent to, or remote from said base, with the intake fitting dis posed near the same end of the base.

-2. In a centrifugal pum a casing formed of a plurality of detacha 1y connected sections, a discharge conduit formed by one of said sections, a base, holding means for securing the sections together and for securing the casing to the base, means constituted by the casing, forming a plurality of peripheral, angularly related, base-engaging seats, and means forming uniform intake connections on each side of the casing, whereby the casing may be positioned with said discharge conduit disposed substantially horizontally or substantially vertically, on either side of said base.

3. In acentrifugal pump, a casing formed of a plurality of detachably connected sections, a discharge conduit formed by one of said sections, a base, holding means for securing the sections together and for securing the casing to the base, and means forming a plurality of peripheral seats on the casing, disposed at an angle to each other, whereby said discharge conduit may be disposed in any of a plurality of angular positions relative to said base.

4. In a centrifugal pump, a casing including a pair of detachably connected sections, a discharge conduit formed by one of said sections, means including peripheral base-engaging'seats, formed on the casing, for detachably securing the casing to the base in a variety of positions, whereby said discharge conduit may be disposed selectively on either side of, and distantly from or adjacent to said base; said casing having oppositely disposed registering openings formed in its sides, said openings being of substantially identical size, whereby said casing is laterally reversible; an impeller, and a power shaft therefor extending into said casing, and a unitary bearing and stufiing-box structure associated with said shaft and adaped to be detachably carried by either side of said casing adjacent either of said laterally disposed openings, whereby either of said openings may be employed to receive said bearing structure, and the other thereof adapted to serve as a pump intake opening. I

5. In a centrifugal pump including an impeller and shaft, a casing constructed of a pair of mating one-piece sections having a flange joint in a plane parallel to the plane of shaft rotation, a base for the casing, means forming peripheral supporting areas on the casing, disposed at asubstantial angle to each other, and the base having a companion area arranged for selective engagement with either of the supporting areas on the casing.

HERBERT STROM.

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