US1714735A - Vacuum and boiler-feed pump - Google Patents

Description

y 1929- B. SKIDMORE. JR

VACUUM AND BOILER FEED PUMP Filed July l8, 1927 lNVENTOR BQJlJOYMn Skidmore. Jr.

Patented May 28, 1929. v

UNITED STATES PATENT OFFICE.

BENJAMIN SKIDMORE, JR, OF GLENCOE, ILLINOIS, ASSIGNOR TO MINETTE E. SKID- MORE, OF CHICAGO, ILLINOIS. I

VACUUM AND BOILER-FEED PUMP.

Application filed July 18,

This invention relates to improvements in vacuum and boiler feed pumps for use in steam heating sustems and for other purposes where liquid and gases are simultaneously handled, and one of the objects of the invention is to construct and arrange the various parts so that the pump bearings, flexible couplings and subbase are eliminated, and at the same time produce a com,- pact, sturdy unit of pleasing design, at a considerable saving in Weight and cost of manufacture and requiring a minimum amount of floor space for installation.

To the attainment of these ends and the accomplishment of other new and useful objects as will appear, the invention consists in the features of novelty in substantially the combination and arrangement of the several parts as hereinafter more fully described and claimed and as shown in the accompanying drawing illustrating this invention, and in which drawing;

The figure is a view partly in vertical section and partly in elevation of a pumping apparatus of this character embodying the features of this invention.

Referring more particularly to the drawing the numeral 10 designates generally a receiver or container which is provided with an air outlet 11.

The receiver is provided with an opening 14 adjacent its bottom and this opening is preferably of a size to form both an inlet and an outlet for the receiver.

The numeral 15 designates generally a pump casing in which is arranged a suction pump for handlin the condensates and air and delivering them into the receiver.

Any suitable form of suction pump may be usedin connection with this apparatus, but in the present exemplification of this invention, and for the purpose of a clear understanding of the operation of the same, the drawings illustrate a suction pump sim ilar to that disclosed in United States Patent 1,390,390, issued September 13, 1921.

The pump consists essentially of thecasing 15, within which is arranged a. rotor 16 adapted to co-operate with a stationary member 17 having openings 18. The pump casing is provided with an inlet opening 19 constituting a suction inlet for the condensates and air and leads to an annular chamber 20, which connects through member 17 to openings 18. In the member 15 is a pas- 1927. Serial No. 208,448.

sageway 21, which latter is connected with the opening 14 of the receiver 10 so that the operating water or liquid for the pump will be supplied to the pump through the passage 21 at a low elevation. When the rotor 16 is rotated suction will be created so as to draw the condensates and air in through the suction inlet 19, the operating water bemg supplied through the passage 21. The a r and water drawn in by the rotor will be discharged into the receiver or separator 10 through a passage 22 and the opening 14.

The'passages 21 and 22 in the pump cas mg may be surrounded by a flange 23 which abuts a surface on the wall of the receiver 10, and the pump is fastened to the receiver by means of suitable fastening bolts passing through the flange.

Depending from the pump casing is a short leg 24 and projections or formations 25 extend from the bottom of the receiver 1.0. This leg 24 and formations 25 constitute a support for the receiver and the pump casing.

Arranged above the suction pump is another pump 26 preferably of centrifugal type, and the pump 26 and the rotor 16 are superposed and are suspended from a vertical shaft 27. A motor 28 is supported by the pump casing preferably through the medium of a formation 29 which may be in the form of uprights or of a circular flange projecting above the casing. If in the form of a flange, one or more openings 50 may be provided in the flange to permit access to some of the parts.

The rotors may be connected with any suitable power mechanism for operating them, but preferably by telescoping or otherwise connecting the vertical shaft 27 with the shaft 31 of the motor 28, thereby rendering it possible to readily remove the motor without dismantling the remaining parts of the mechanism.

Leading from the receiver 10 is an opening 32 arranged preferably at a comparatively high elevation and through which opening excess water or liquid in the receiver 10 is adapted to flow.

Communicating with this opening 32 is a pipe or conduit 33 which leads to the suction eye 34 of the centrifugal pump 26, and serves as a means whereby the excess. liquid will be conveyed to the pump 26 to be discharged through a shiftable discharge outlet be secured to a surface. on the wall of the receiver.

With this improved construction it will be manifest that pump bearings, a flexible coupling and a subbase for the apparatus will be dispensed with and a compact, sturdy unit of a comparatively light weight will be produced and the pumpcasing and separating tank or receiver will constitute the sup port therefor.

What is claimed as new is 1. As a unitary structure a pump casing,

a suction pump of a liquid using type there-' in, a boiler feed pump also in the casing, each of said pumps embodying a rotor, a

liquid receiver to which the said pumps are.

connected, the'suction pump delivering to the receiver and the feed puinp removing the contents of the receiver, a vertical shaft from which each'of said rotors is suspended, and a motor mounted upon the said casing for rotating theshaft, the suction rotor receiving its supply of operating liquid from a point in proximity to the bottom of the said receiver.

2. As a unitary structure, a pump casing, a vacuum pump therein, a boiler feed pump also in the casing, each of said pumps embodying a rotor, a liquid receiver with which the pumps have communication and to which receiver the said pumps are attached, the

ceiver constituting the so e support for the structure. Y

3. As a unitary structure, a pump casing, a suction pump therein, a pressure pump also in said casing, each of said pumps embodying a rotor, a liquid receiver with which the pumps have communication and to which receiver the pumps are attached,- the suction pump delivering to the receiver and the feed pump removing the contents of the receiver, a vertical'shaft from which each of said rotors is suspended, and means for rotating the shaft, the pump casing and the said receiver constituting the sole support for the structure.

In testimony whereof I have signed my name to this specification, on this 15th day of July, A. D. 1927-.

BENJAMIN SKIDMORE, JR.

Images