US864811A - Jet-condenser and centrifugal vacuum-pump. - Google Patents

Description

No. 864,811. PATENTED SEPT. 3, 1907.

B. THOENS.

JET CONDENSER AND OENTRIFUGAL VACUUM PUMP.

.APPLIOATIQN FILED MAR. 20. 1905.

avwwwroz 50 tion of the bearing PATENT OFFICE.

STATES BURCHARD rnoENs, on NEW YORK, n. Y.

JET-CONDENSER AN D CENTRIFUGAL VAC UUM-PUMP.

Specification of Letters Patent. Application filed Mal'oll 20, 1905. Serial No. 251,085;-

Iatante'd Sept. 3, 1907 To all whom it may concern:

Be it known that I, Buncrmnn THdENS, a subject of i New York, in the i -the German Emperor, residing at.

county of New York and State of New York, have invented certain new and useful Improvements in Jetif and'use the same.

My invention relates to improvements in jet condensers and centrifugal vacuum pumps, and itsobject is to produce a device whereby the steam and air from evaporators, vacuum pans, steam turbines, condensing engines, etc., may be quickly and economically removed, condensed, and discharged.

My invention consists in the construction and combinations of parts hereinafter described and claimed. In'the accompanying drawings:.Figure 1 is a verti- 9 cal section of my improved jet condenser and centrifugal-vacuum pump. Fig. 2 is a cross section of the pump wheel and'its adjacent diffusion ring.

11 represents a vessel, preferably cylindrical in shape, which forms the body of the condenser and is connectod by a pipe I) with the vaccuum pan cvaporatoror engine. The top of the cylinder is partially closed by a casting c, forming a right angle with the body of the condenser a, and a casting d is suspended therein in proximity thereto so as to form an annular chamber into which water is delivered through the opening 6. The part c of the casting is perforated as shown at f, either in the 7 form of an annular opening or numerous small openings, which may be made adjustable if desired. The top of the cylinder inside of the part dis closed by the horizontal partition g which is provided with a bearing 72 in which is mounted the shaft t carrying the pump wheel, which shaft passes through' an ordinary stufling box in the bearing h. This shaft i is revolved by a pulley or any suitable means (not shown). The body a of 40 the condenser rests upon the casting j, which in turn rests upon a similar shaped casting I: supported in any suitable manner, as by the cylinder l. The castings j and k are similar in shape and fit together as shown at m and form a receptacle for the Water, condensed steam,

4 and entminecl air.

The casting j is provided with a downwardly extcnding portion a with a central opening as shown at o for the passage of the water and gases. The bottom of the casting I: is closed except for an opening for the recepp in which the lower reduced end q of the shaft 1' rests. Below the end q the opening in the bearing 5 is enlarged as shown at r for the reception of lubricating material or fluid, which is forced in through the pipe 8, which pipe is screw-threaded into the'bottomof the bearing p. The casting I0 is provided with an upwardly projecting ring 1., and the casting j is provided with a downwardly projecting ring it; both rings are arranged opposite each other, but not quite meeting, leaving an annular opening for the reception of the stationary portion of the pump wheel called diffusion ring, which will be hereinafter described. h

Within the cylinder (1 and restingupon the portion 1;

of the casting j is a second cylinder 1) open at both ends.

This cylinder 4) receives the water showered down ,from' the annular chamber in the top of the condenser and delivers it upon the portion n of the casting j, which in turn delivers it into the pump wheel.

The cylinder 1 is provided with an inwardly projecting portion 10 which supports an annular right angled partition x open at the center as shown. The inner edge of this partition extends-considerably nearer the center of the condenser than the inner edge of the partition 0, so that the water which drips downfrom the.

annular-chamber in the top of the condenser is forced C to pass towards the center of the condenser.

Below the partition 9; is arranged a circular partition y loosely encircling the shaft i. This is supported by means of bolts z fastened to the partition :12. This partition does not extend out to the cylinder *0, but a space is lcft'bctween said partition and said cylinder for the passage of the water, which is therefore forced to travel in a zigzag course through the cylinder 2). The main part of the steam and air coming in through the pipe 1) passes up over the top of the pylinder uand down through said cylinder, but this cylinder is pro: vided with a series of holes 1, arranged near the bottom thereof so that any eicccss of steam or any water condoused within the cylinder (1 may pass down into the pump wheel. The pump wheel is mounted on the shaft 1' by means of the spline or feather 2. It consists of a disk S-extending up to the shaft 2', and a disk 4 fixed to the disk 3 but annular in shape so that the water may pass, downwardly throughthe center thereof. The disk 4 is scparatedfroni the disk 3 by means of curved ribs 5, between which the water passes outwardly.

On the top of the disk :1. and on the bottom of the disk 3 of the pump wheelare arranged curved blades 6 for the purpose of aiding the circulation, and to prevent any water from flowing back into the condenser. Owing to the peculiar shape of the parts 3 and 4, afunnel shaped annular passage is formed throughflwhich the Water passes, which funnel shaped passage terminates in an annular discharge slot, which slot is located within the stationary rings 7. These rings exactly fill the space between the partitions z and wand consist of two plates of similar shape, separated by opposite curved vanes 8, the object, of which is to stop the rotary motion of the water and force it out through the slot 1) in the stationary part (-oiiperating with the pump whet-l into the annular chamberlit-tween the castings j and k.

10 represents a discharge pipe for the ct'indcnsing water and condensed steam and air drawn t'rom tho evaporator, vacuum pan or engine.

'lhc operation as follows1-Tlie shaft 'L is set in motion and water supplied through the pipe 0. Thi. water flows over the annular spray plates x and y, and the steam and air lrom the twaporator, raeuum pan or engine enters through the pipe b, the steam being condensed and the air being carried along with and through the billing water. \\'lll('ll travelsin a zigzag course through the cylinder l.

'lhe condensing water, t'oiuleusetl steam and air are then delivered downward through the opening into the pump wheel, which; as it rox'olvt-s. discharges the water between the cur 'cd \'t\llt' and through the annular slot t) of the (lil't'usion ring 7 and the air is tlrawn through tho space between the revolving pump wheel antl the stationary pump (asing: or dil'l'usion ring into the annular chamber between the castings j and Ir, the water, air, etc, passing out, through the pipe 10.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:-

l. in a combined jet condense and centrifugal vacuum pump. thc combination of a receptacle for the liquid, a diffusion rm; deliveringinto said receptacle and provided with a flaring: inner mouth, and a pump wheel journaled within said dit't'usion ring said pump Wheel consisting of two pnrts joined by vanesi said parts being each provided with vanes on their outside edges, the outer edge of said pump wheel entering' the flaring mouth on the inner part of tho ditlnsion ring. substantially as described.

2. in a combined l(l(lntllll.\'(.l and centrifugal vacuum pump the combination of ca. ings forming an annular receptacle for the liquid. a diffusion ring delivering into said rechptaeie and composed of two plates united by curved vanes, said plates llaring so as to form an enlarged mouth dir cted |oward the interior of the condenser, and a horizontal pump wheel mounted inside of said receptacle and consisting, of two parts joined together by vanes,

said parts beiim each provided with curved vanes on their outside edges. and the upper part being provided with an annular opening the outside cdgo of said pump wheel entering tho tlaring' mouth of said diffusion ring. substantially as described.

in testimony whereof. I ailix my signature, in presence of two witnes. '9.

BURCIIARI) TI'IOENS.

Witnesses (llAliLES 1i. Lnvr, HANNAH BESTIIOFF.

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