US993048A - Centrifugal liquid-separator. - Google Patents

Description

I E. A. FORSBERG. GBNTRIFUGAL LIQUID SBPARATQR. APPLICATION FILED SEPT. 20, 1910.

993,048. Patentd May 23, 1911.

2 SHEETS-SHEET 1.

WITNESSES:

IIIYEIITUR WW 50f WM I noun-m E. A. FORSBERG.

GENTRIFUGAL LIQUID SBPARATOR. 'APPLIOATION FILED 82M. 20, 1910.

Patented May 23, 1911.

WITNESSES UNITED STATES PATENT OFFICE.

ERIK AUGUST FORSIBERG, OF STOCKHOLM, SWEDEN, ASSIG'NOR TO .AKTIEIBOLAGE'I SEPARATOR, OF STOCKHOLM, SWEDEN.

CENTZRIFUG AL LIQUID-SEPARATOR.

Specification of Letters Patent.

Patented May 23, 1911.

Application filed September 20, 1910. Serial No. 582,861.

To all whom it may concern:

Be it known that I, ERIK AUoUs'r Fons- BERG, chief engineer, a citizen of Sweden, and a subject of the King of Sweden, residmg at Stockholm, in the Kingdom of Sweden, have invented certain new and useful Improvements in Centrifugal Liquid- Separators; and I do hereby declare the followin to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in centrifugal liquid separators specifically in cream separators, and it particularly relates to a device for the inlet of the fluid to be separated and for the outlet of the separated constituents from the bowl of such centrifugal separators, in which the bowl is suspended on the top of the driving shaft, which penetrates to a relatively high point in the central part of the bowl. Owing to.this fact certain difficulties as to .the inlet of the separating fluid and the outlet of the separated constituents arise.

In order to have sufiicient strength the driving shaft must have a relatively large diameter. It must further be surrounded by a central sleeve connected with the bowl, which must also be of sufiicient thickness. There is thus formed in the center of the bowl a conical or cylindrical tap rising from thebottom of same. In the constructions hitherto known the liquid distributing 'organ envelops this central tap, and as this organ also must'have acertaln solidity, the result is that abody of relatively great extension in radial direction occuples the central part of the bowl. And further, as the cream outlet must be located at such a distance from the centerline of the bowl that the cream cylinder formed during rotation does not touch at the central part of the bowl--causing anobstruction of the cream flowthe result is that the cream outlet,

and consequently also the skim-milk outlet, must be located at a relatively great distance from the center of the bowl. This means,

however, a loss of power in the driving of the bowl.

My invention has for its object the construction of a milk distributin organ, by which the inconveniences mentioned above may be removed, and I attain this b limiting the dimensions in radial direction of the central parts of the bowl to what is strictly necessary with respect to the fixed part surrounding the drivlng shaft, or, in other words, I construct a liquid distributing organ, which does not itself take up any room In radial direction, whereby the upward flow of the cream would be checked.

.Another object of'my invention is that the milk distributing organ may be simple in manufacturing and easy to clean.

My invention is illustrated on the annexed drawing, on which Figure 1 is a vertical section of the rotating bowl showing the fluid distributing device partly sectioned and partly in elevation. Fig. 2 is a plan section taken on the broken line AB in Fig. 2. Fig. 3 is a independent distributing organ.

In the embodiment shown in Figs. 1 and 2 a is the body of the bowl, supporting the central sleeve 6 surrounding the top of the driving shaft. The sleeve 6 is in its turn surrounded by the fluid distributing organ, which is composed of a number (in the drawing three) of vertical gutters c, independent of the central sleeve, said gutters facing inward and abutting with their side walls against the central sleeve. The gutters are at their lower extremity connected with a bottom part 11, in which channels 6 are provided, forming continuations of the gutters. These channels issue into the series of distributing holes 9 existing1 in the separating disks. At the up er en the gutters are closed and held toget er by means of, preferably, sector-formed connecting pieces h,

which preferably are made in one with the gutters '0. These connecting pieces may be either entire, in which case the upward directed flow of the lighter fluid is conducted past the connections through channels is formed in the gutters (Figs. 1 and 2), or the connections themselves may be arranged to leave free passage for the said fluid flow.

According to the modification shown in Fig. 5 there are'left spaces between the connections and the central feed pipe, leaving free passage for the lighter fluid.

In the embodiment shown in 6 the connections touching to the central feed pipe are provided with apertures, and in the embodiment illustrated in Fig. 7 passages are forwarded both in the gutters and in the connecting pieces, forming one issue.

Should it prove necessary, one or more connecting pieces may be arranged at suitable places along the length of the gutters, these connecting pieces being also arranged so as to leave free passage for the rising lighter fluid.

The distance from the axis of the bowl to the outer circumference of the connecting pieces may either be equal to the distance from the axis to the outer wall of the gutters, or less. In the latter case, the separating disks are guided between the opposite walls of the gutters. In the feed pipe forming a continuation of the sleeve 1) there are vertical apertures 2' corresponding to the 1nwardly open gutters. i The operation of the device is as follows: The fluid to be separated is introduced in the central feed pipe, flows through the apertures z' and the gutters 0 down to'the channels e and is further distributed in the liner through the series of holes in the separating disks. As ill be seen, the space between the gutters is free in radial direction up to the outer wall of the central sleeve 6 and no .room is taken up by the milk distributing organ. The, outflow openings for the separated constituents may consequently beloca'ted as near to the center as the con-' struction in other respects permits. since the liquid distributing organ is independently adapted to the central sleeve, the same may be easily removed and efiectively cleaned.

In the modified construction shown in Figs. 3 and 4. the milk is in the known manner distributed to the separating chamber by means of split wings 0'. Said wings correspond thus to the gutters'in the embodiment before described and are, like these, connected below by means of a central supporting body d, in which, however, no distributing channels are provided, and above by means of a ring h. The splits'communicate with the apertures i in the feed pipe. At the one side of each wing there are made vertical channels 7: ending over and under And theconnecting pieces h for conducting the lighterv vfluid past these connecting pieces. Instead of such channels there may be holes or slits in the connecting pieces themselves.

What I claim is 1. In centrifugal liquid separators, in combination, a driving shaft, a bowl on the top of said shaft, a sleeve rising from the bottom of the bowl and surrounding the upper part of the shaft, a central feed pipe forming prolongation of said sleeve, a liner in the separating chamber of the bowl, and a liquid distributing device interposed between the liner and the'sleeve independent of both and consisting of upright gutters, in communication with the feed pipe above the sleeve and with the lower portion of the separating chamber to conduct the fluid to be separated from the feed pipe to the separating chamber.

2; In centrifugal liquid separators, in combination, a driving shaft, a bowl on the top of said shaft, a sleeve rising from the bottom of the bowl and surrounding the uptween the liner and the sleeve independentof both, and consisting of a plurality of upright, gutters communicating with the interior of the feed pipe above the sleeve and with the lower portion of the separating chamber to conduct the fluid to be separated from the feed pipe to the separating chamber, and means to conduct the separated lighter constituent to the outlet.

3.. In centrifugal liquid separators, in combination, a driving shaft, a bowl .on the top of the said shaft, a sleeve rising from thebottom of the bowl and surrounding the upper part of the shaft, a central feed pipe forming prolongation of said sleeve, a liner in the separating chamber of the bowl, a liquid distributing device interposed between the liner and the sleeve, independent of both, and consisting of a plurality of outwardly closed upright gutters communicat ing with the interior of the feed pipe above the sleeve and with the lower portion of the separating chamber, to conduct the fluid to be separated from the feed pipe to the separating chamber, and means to conduct the separated lighter constituent to the outlet.

4. In centrifugal liquid separators, in combination, a driving shaft, a bowl on the top of said shaft, a sleeve rising from the bottom of'the bowl and surrounding the upper part of the shaft, acentral feed pipe forming prolongation of the said sleeve, a liner in the separating chamber of the bowl, consisting of superposed conical disks provided with series of holes, a liquid distributing device interposed between the liner and the sleeve, independent of both and consisting of a plurality of outwardly closed upright gutters communicating with the interior of the central feed pipe above the sleeve and abutting beneath the series of holes in the separating disks, and means to conduct the separated lighter fluid to the outlet.

5. In centrifugal liquid separators, in combination, a driving shaft, a bowlon the top of said shaft, a sleeve rising from the bottom of the bowl and surroundm the upper part of the shaft, a central feed pipe forming prolongation of the said sleeve, a liner in the sqparating chamber of the bowl, consisting o superposed conical disks rovided with series of holes, a liquid distributing device interposed between the liner and the sleeve, independent of both-and consistin of a plurality of outwardl closed uprigit gutters communicating with the inter1or of the com tral feed pipe and abutting beneath the series ofholes in the separating disks, connecting pieces between the said utters, and

means to conduct the rising lighter constituent from the under to the upper side of these connecting pieces.

6. In centrifugal liquid. separators, in combination, a driving shaft,a bowlon the top of said-shaft, a sleeve rising from the bottom of the bowl and surroundin the upper part of the shaft, a central eed pipe forming prolongation of the said sleeve, a

liner in the separating chamber of the bowl, consistin of superposed conical disks rovided wit series of holes, a liquid distri uting device interposed between the liner and the sleeve, independent of both and consisting of a plurality of outwardly closed upright gutters communicating with the inte# rior of the central feed pipe and abutting beneath the series of holes in the separating disks, connecting pieces between the said gutters and passages in the body'of the gutters issuing beneath and above the conduct ing pieces to conduct the rising flow ofthe separated lighter constituent past the said connecting pieces.

7. In centrifugal liquid separators, in combination, a driving shaft, a bowl on the top of said shaft, a sleeve rising from the bottom of the bowl and surrounding the upper part of the shaft, a central feed pipe forming prolongation of the said sleeve, a liner in the separating chamber of the bowl, consisting of superposed conical disks provided with series of holes, a liquid distributing' device, interposed between the liner and the sleeve, independent of both and consisting of a plurality of outwardly closed upright gutters communicating with the inte rior of the central feed pipe and abutting beneath the series of holes in the separating disks, connecting pieces between the said ow of the,

ing device interposed between the liner and.

the sleeve, independent of both and consisting of a plurality of outwardly closed up right gutters communicating with the interiorof the central feed pipe and abutting beneath the series of holes in the separating disks, connecting pieces between the said gutters and passages in the body of said gutters and in the sald connecting pieces, form: ing one issue, to conduct the upright di rected flow of the separated lighter constituent.

9. In centrifugal liquid separators, in combination, a driving shaft, a bowl on the top of said shaft, a sleeve rising from the bottom of the bowl and surrounding the upper part of the shaft, a central feed pipe forming prolongation of the said sleeve, a liner in the separating chamber of the bowl consisting of superposed conical disks, a. liquid distributing device interposed between the liner and the sleeve, independent of both, and consisting of a. plurality of inwardly and outwardly open upright gutters communicating with the interior of the feed pipe above the sleeve and with lower portion of the separating chamber and means to conduct the separated lighter fluid to the outlet.

10. In centrifugal liquid separators, in combination, a driving shaft, a bowl on the top of said shaft, a sleeve risin -from the bottom of the bowl and surroun in the upper part of the shaft, a central eed pipe forming prolongation of the said sleeve, a linerin the separating chamber of the bowl, consisting of superposed conical disks, 0. liquid distributing device interposed between the liner and the sleeve, independent of both, and consisting of a plurality of inwardly and outwardly open upright gutters -;communicating with the interior of the feed pipe and with the separating chamber of the bowl, connecting pieces between said gutters and means to conduct the rising flow of the lighter constituent from the under to the upper side of these connecting pieces.

11. In centrifugal li uid separators, in combination, a driving s aft, a bowl on the top of said shaft, a sleeve rising from the bottom of the bowl and surrounding the upper part of the shaft, a central feed pipe forming prolongation of the said sleeve, a liner in the separating chamber of the bowl,

consisting of superposed conical disks, a

liquid distributing device interposed between the liner and the sleeve, independent of both, and consisting of a plurality of inwardly and outwardly open upright gutters communicating with the interior of the feed pipe and with the separating chamber of the bowl, connecting pieces between said gutters, and passages in the body of the gutters issuingbeneath and above the connecting pieces.

12. In centrifugal liquid separators, in combination, a driving shaft, a bowl on the top of said shaft, a sleeve rising from. the bottom of the bowl and surrounding the upper" part of the shaft, a central feed pipe forming prolongation of the said sleeve, a liner in the separating chamberof the bowl, consisting of superposed conical disks, a liquid distributing device interposed between the liner and the sleeve, independent of both, and consisting of a plurality of inwardly and outwardly open upright gutters communicating-with the interior of the feed pipe and with the separating chamber gutters, and passages in said connecting 1 pieces.

13. In centrifugal liquid separators, in

combination, a driving shaft, a bowl on the top of said shaft, a sleeve rising from the bottom of the bowl and'surrounding the upper part of the shaft, a central feedpipe formmg prolongation of the said sleeve, a liner in the separating chamber of the bowl, consisting of superposed conical disks, a liquid distributing device interposed between the liner and the sleeve, independent of both, and consisting of a'plurality of inwardly and outwardly open upright gutters communicating with the interior of the feed pipe and with the separating chamber of the bowl, connecting pieces between said gutters, and passages in the body of said gutters and in the said connecting pieces, forming one issue.

In testimony, that I-claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

ERIK AUGUST FORSBERG.

WVitnesses:

HARRY ALBIHN, L. BERGMAN.

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