DE184943C

DE184943C -

Info

Publication number: DE184943C
Application number: DENDAT184943D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT,PATENT OFFICE,

PATENTSCHRIFTPATENT LETTERING

TVl 184943— KLASSE 59 b. GRUPPETVl 184943 - CLASS 59 b. GROUP

Patentiert im Deutschen Reiche vom 7. Juli 1904 ab.Patented in the German Empire on July 7, 1904.

Die Erfindung bezieht sich auf eine Neuerung bei Zentrifugal-, Turbinen- oder ähnlichen Pumpen, bei denen geschlossene Schleuderräder angewendet werden. Der Zweck der vorliegenden Pumpe besteht darin, eine einfache und wirksame Anordnung vorzusehen, bei der die Reibung durch Luftkammern an den entgegengesetzten Enden des Schle'uderrades vermindert wird. Ferner sind GliederThe invention relates to an innovation in centrifugal, turbine or the like Pumps that use closed impellers. The purpose of present pump is to provide a simple and effective arrangement, in which the friction through air chambers at the opposite ends of the centrifugal wheel is decreased. Furthermore are limbs

ίο vorgesehen, die den Ausgleich des Schleuderrades bewirken und ein Durchsickern nach der Nabe verhindern.ίο provided that balance the impeller and prevent leakage prevent the hub.

Der Erfindungsgegenstand läßt sich sowohl für einstufige als auch für mehrstufige Pumpen verwenden und wird in der Zeichnung an einer Pumpe mit zwei Schleuderrädern veranschaulicht. ^ . The subject of the invention can be used for both single-stage and multi-stage Use pumps and is illustrated in the drawing on a pump with two impellers. ^.

An das Pumpengehäuse A ist der Saugstutzen B und der Druckstutzen C ange- schlossen. Die Schleuderräder DVD² werden von der ¹WeIIe E getragen und sind durch die gewöhnlichen Trennscheiben lö getrennt, die mit den Endwänden ii die Schleuderradräüme und den Abgabekanal von dem ersten nach dem zweiten Schleuderrade bilden. Die. Naben der beiden Räder X)¹, D² liegen in entsprechender Lage zueinander und werden durch einen Packungsring 12 auf der Welle E voneinander getrennt. Die Schleuderräder sind von der bekannten Form, sie haben die seitlichen Wände 13 und Schaufeln 14, die sich zwischen den letzteren erstrecken. An den entgegengesetzten Seiten der Schleuderräder sind Kammern 15' vorge-; sehen, in denen Schaufeln 16 laufen, welche letzteren an der Außenseite der Schleuderradwände 13 angebracht sind. Die Kammern 15 reichen von der äußeren Kante des Schleuderrades bis nach dem, Packungsringe Und bilden an den entgegengesetzten Seiten des Schleuderrades Luftkammern. Der Auslaß des ersten Schleuderrades D¹ erstreckt sich von dem Schleuderrade durch den gewöhnlichen Verteilungsring 17 und dann seitlich und abwärts durch den Kanal 18 nach dem Saugeinlaß für das zweite Schleuderrad Z)². In diesem Kanal 18 sind feste Leitflügel 19 vorgesehen, die sich abwärts nach dem Saugraum für das zweite Schleuderrad erstrecken. . Die Luft wird auf entgegengesetzten Seiten der beiden Schleuderräder nach den Luftkammern 15 geführt, sie geht vdn einer Seite der Pumpe nach der anderen und wird nach der äußeren Luftkammer 15 an defc Abgabestelle der Pumpe von einem .Luftkompressor oder einer anderen geeigneten Vorrichtung durch das Rohr ι zugelassen. Die Luft wird dann von der Kammer 15 von der einen Seite eines jeden SchleUderrades nach der anderen durch die Löcher 2 in den Schleuderradflügeln 14 gelassen, sie geht dann durch die Trennscheiben und einen der festen Flügel 19 durch, das Loch 3. Eine Auslaßöffnung 4 von der Außenseite der; Kammer 15 am Schleuderrade D¹ ist dann angebracht und durch einen verstellbaren Lufthahn verschließbar. Die durch das Rohr 1 zugelassene Luft geht dann durch' die einzelnen Kammern 15 von der einen Seite der Pumpe nach der anderen und entweicht durch das Rohr 4. Es kann auch ein besonderes Rohr für jedes der Schleuderräder oder für jede Kammer vorgesehen sein, wenn solches wünschenswert erscheinen mag, jedoch ist die oben beschriebene Anordnung-die einfachste.The suction nozzle B and the pressure nozzle C are connected to the pump housing A. The spinners DVD ² to be supported by the ¹ WeIIe E and are separated by the usual separation discs lö which together with the end walls of the Schleuderradräüme ii and the discharge passage from the first to the second Schleuderrade. The. The hubs of the two wheels X) ¹ , D ² are in a corresponding position to one another and are separated from one another by a packing ring 12 on the shaft E. The spinners are of the known shape, they have the side walls 13 and blades 14 extending between the latter. Chambers 15 'are provided on the opposite sides of the centrifugal wheels; see, in which blades 16 run, which latter are attached to the outside of the centrifugal wheel walls 13. The chambers 15 extend from the outer edge of the centrifugal wheel to after the, packing rings and form air chambers on the opposite sides of the centrifugal wheel. The outlet of the first spinner D ¹ extends from the spinner through the ordinary distribution ring 17 and then laterally and downwardly through the channel 18 to the suction inlet for the second spinner Z) ² . In this channel 18 fixed guide vanes 19 are provided, which extend downwards to the suction chamber for the second centrifugal wheel. . The air is led on opposite sides of the two centrifugal wheels to the air chambers 15, it goes from one side of the pump to the other and is after the outer air chamber 15 to the delivery point of the pump from an .Luftkompressor or other suitable device through the pipe ι authorized. The air is then released from the chamber 15 from one side of each impeller after the other through the holes 2 in the impeller blades 14, it then passes through the separating discs and one of the fixed blades 19, hole 3. An outlet opening 4 from the outside of the; Chamber 15 on centrifugal wheel D ¹ is then attached and can be closed by an adjustable air cock. The approved by the tube 1 air then passes through 'the individual compartments 15 from one side of the pump after the other and escapes through the tube 4. It may also be a special pipe for each of the centrifuging wheels, or provided for each chamber be if such may seem desirable, but the arrangement described above is the simplest.

Claims

Each of the centrifugal wheels is provided on the hub with a bore 20 through which the liquid goes to the equalization chamber 21 on the rear side of the centrifugal wheel in order to release the suction pressure. The centrifugal wheels also have the flanges 5 which are located outside the bore 20 and inside the suction opening. These flanges form running surfaces with the shoulders or flanges "6" of the housing and the separating disks outside the suction openings and the compensation chambers the side walls 13 of the centrifugal wheel are formed alternately with rings 8 on the packing rings 23 and are fastened in incisions on the housing and on the separating disks! To allow oil or water to get to this ring, distilled water is preferred to prevent wear Suitable openings j are provided for the entry of the liquid; In the arrangement described above, these openings form a channel which extends through the pump, so that a single opening is provided for the intermediate rings. A single channel 9 passes through the outer wall of the housing after the outer intermediate rings of the centrifugal wheel D ¹ , then through the centrifugal wheel after the Zw ischenringen on the opposite side of this wheel, then through the cutting discs and a fixed blade 19 to the inner rings on the centrifugal wheel D ² and from here finally through the wheel to the inner rings on this wheel and to the outlet opening for the housing. The liquid in question can also be conveyed after the intermediate rings through separate pipes or through a single pipe for each centrifugal wheel. ■

The whole subject of the invention sees one very simple and effective arrangement on a pump with centrifugal wheels, which in Run air and which are effectively balanced, as well as avoid leakage. The inner wings 16 in the ventilation chambers 15 are subject to a centrifugal effect within this space, creating a small part Liquid on the outer ends of the wings, is held within the chamber. This makes the chambers effective against an escape of the air at the outer edges; the drive links secured. ' The Liquid is outside the air tube to allow air to pass through that tube to enter. The outer vanes reduce the pressure against the center point to such an extent that the tendency the air to escape towards the center after the treads 5, 6, is essential is decreased. Such an Eritwejchen is completely through the rings 7, 8 between the air chambers and the running surfaces prevents / the outer vanes 16 from extending; off the edge of the centrifugal wheels after 'the intermediate rings, but the length can be kept different, and in some arrangements it is useful; that only small wings are used. The present arrangement is likely however, be the most expedient.

The air chambers are of particular importance in connection with the wings on the outside of the centrifugal wheels as they Avoid friction, especially on the sides of the impeller and the housing. However, the outer blades with the compensation space and the intermediate rings, be applied with outer scoops immersed in a liquid rather than in Air move. V.

The subject matter of the invention is illustrated using a two-stage pump, but it can be seen from the above that it can be used just as well in single-stage pumps as in multi-stage pumps; the individual parts can also be used on their own. Λ .-; ■ ". : ■ ■■ =. ·; ..-

'C Claims:.

. '.'. '■ -.1'. Single or multi-stage centrifugal,

; Turbine or similar pump, -in the , on both sides of the centrifugal wheels air

; chambers, are provided and the Wheels have side walls, characterized in that the air chambers (15) to the inside by a number of sealing rings (7, 8), which a

'; The air escapes towards the hub /impede. ;

2nd embodiment of the device according to claim i, characterized in that the on both sides of the centrifugal wheels located air chambers (ι 5J through air ducts (2) through the wheels go, are connected.

3. embodiment of the device according to claim ι and 2, characterized in that that the sealing rings on both sides of the centrifugal wheels (8) connected by liquid channels (9) passing through the centrifuge 115 go through wheels.

For this purpose ι sheet of drawings.