WO2015058741A1 - Staurohrfördereinrichtung sowie zentrifuge zum trennen von flüssigkeiten mit einem rotor und zumindest einem staurohr - Google Patents
Staurohrfördereinrichtung sowie zentrifuge zum trennen von flüssigkeiten mit einem rotor und zumindest einem staurohr Download PDFInfo
- Publication number
- WO2015058741A1 WO2015058741A1 PCT/DE2014/100373 DE2014100373W WO2015058741A1 WO 2015058741 A1 WO2015058741 A1 WO 2015058741A1 DE 2014100373 W DE2014100373 W DE 2014100373W WO 2015058741 A1 WO2015058741 A1 WO 2015058741A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pitot tube
- axis
- rotation
- pitot
- rotor
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/12—Pumps with scoops or like paring members protruding in the fluid circulating in a bowl
Definitions
- the present invention relates to a pitot tube conveying device with at least one feeding line and at least one laxative line and a rotor forming a chamber, which is rotatably driven drivable with a drive about a rotation axis, and with a arranged in the rotor pitot tube or Pitotrohr, which in his the axis of rotation radially spaced, one
- the invention relates to a centrifuge with a pitot tube conveying device for separating inhomogeneous liquids with a rotor and with at least one pitot tube.
- Such Pitot tube conveyors are also called pitot pumps, jet pumps,
- Turbopumps or pumps with a pitotelement known.
- Conventional pumps according to the pitot tube principle are set in rotation by means of a bearing carrier and a drive coupled thereto.
- On the opposite side of the hydraulic chamber are fluid connections and sealed by a dynamic seal passage of the pitot tube in the hydraulic chamber.
- the dynamic seal is aligned with the hydraulic chamber via a housing which surrounds the hydraulic chamber and which is connected to the bearing carrier.
- pitot tube conveyor has a rotating about a horizontal axis of rotation, serving as a container for a fluid, in particular a liquid, rotor, which is driven at up to 10,000 U / min.
- the pitot tube or pitot tube is arranged between the axis of rotation and the container inner wall and with an inlet region enclosing the inlet opening tangentially or transversely to the inlet opening Aligned axis of rotation.
- the liquid to be delivered passes through a feed system into the rotor interior.
- the liquid is accelerated by the rotor driven at high speed, impinges at a correspondingly high speed into the inlet opening of the pitot tube and then passes through the conduit in the pitot tube into the outlet pipe section. In this case, part of the kinetic energy is converted into an increase in pressure.
- the inlet opening is located with the greatest possible radial distance from the axis of rotation adjacent to the
- Delivery rate is determined by the size of the rotational speed and the
- the invention is therefore based on the object, a pitot tube conveyor of the type mentioned in such a way that thus the pressure losses are substantially reduced. Furthermore, the invention has for its object to provide a equipped with a rotor and a pitot tube centrifuge with improved efficiency.
- the first object is achieved according to the invention with a pitot tube conveying device according to the features of claim 1.
- the further embodiment of the invention can be found in the dependent claims.
- a pitot tube conveying device in which the pitot tube is arranged between the end section having the inlet opening and the outlet tube section at least in sections, a continuously curved, for example crescent-shaped course has. This is by the pipe bends with different or
- Accelerated fluid entering the pitot tube entering the deflection gradually with initially low deflection angle it does not occur as in the prior art to a substantially turbulent flow or flow stalls, but it is achieved in the ideal case, a laminar flow.
- higher delivery heads can be realized as a result of the increase in efficiency thus achieved, or significantly reduced drive outputs at comparable delivery levels.
- a particularly advantageous embodiment of the invention is also achieved in that the pitot tube is arranged at least partially spaced from a certain plane defined by the axis of rotation.
- the pitot tube thus runs in a curved course, which initially moves tangentially starting from the axis of rotation.
- individual pipe regions of the pitot tube extend in different planes, which are spaced parallel to a rotation axis enclosing the plane.
- the inlet opening can also have a corresponding offset, that is to say be arranged in advance in relation to the rotating flow, or else lie in the plane enclosing the axis of rotation.
- the pitot tube follows a course free of discontinuities such that the pitot tube encloses a steadily increasing or decreasing inclination with a plane determined by the axis of rotation.
- the pitot tube is constructed from a sequence of one-piece or integrally connected pipe bends, that is, for example, made from a straight piece of pipe by forming, in particular bending.
- the pitot tube has a curved course, at least in sections, in the plane determined by the axis of rotation.
- the pitot tube extends in a plane in which the axis of rotation is, so that the curved course exclusively in axial
- the pitot tube does not run on the shortest path between the inlet opening and the axis of rotation, resulting in a greater length.
- the inevitable disturbance of the flow does not concentrate on a single transverse plane to the axis of rotation, but extends with a smaller area over the total axial length of the chamber.
- an axial distance between the inlet opening and the outlet pipe section may be provided.
- Pitot tube according to the invention achieved in that the pitot tube at least partially has a slope in the direction of the axis of rotation.
- the pitot tube thus follows a helical or helical course, so that therefore the inlet opening has an axial distance relative to the outlet pipe section.
- the pitot tube has a non-rotationally symmetrical outer surface or contour, for example a wing profile with a leading edge and a trailing edge, which are connected by two curved, conformally shaped surfaces.
- the curved surfaces may for example be symmetrical and shaped so that the liquid can flow along both surfaces largely trouble-free, without causing significant pressure losses.
- drop-shaped cross-sectional shapes are suitable.
- the contour can also adapt to the radial distance from the axis of rotation
- the pitot tube a line section with a circular contour. It can be achieved by a continuous increase in cross-section pressure increase, so that the design of the line can be adapted to the particular circumstances.
- the pitot tube can also be arranged exchangeably on the pitot tube conveying device.
- the pitot tube conveyor is not limited to a single pitot tube. Rather, it has already proven to be particularly practical if the pitot tube conveying device has a plurality of pitot tubes arranged uniformly distributed over the circular circumference of the rotor and whose inlet openings are radially spaced from each other.
- Rotor inner wall surface for example, different, forming within the rotor phases can be supplied separately from each other to a respective outlet. Furthermore, it may also be advantageous if multiple Pitot tubes with a
- matching distance to the rotor inner wall surface are combined into units and connected to the same outlet pipe section, so that a plurality of inlet openings are arranged distributed within the chamber and thereby possible pressure pulsations are avoided.
- Each incoming liquid can be supplied to the same outlet pipe section by combining the streams.
- the rotor is divided in the direction of its axis of rotation into a plurality of successive chambers, wherein a plurality of pitot tubes are arranged in different chambers.
- a particularly efficient acceleration of the respective sub-volumes is achieved by the separating surfaces, which are arranged in particular in a cross-sectional plane relative to the axis of rotation, and the associated entrainment effect for the liquid.
- At least one pitot tube is movably adjustable or flexibly mouldable such that the assigned inlet opening can be fixed at different distances from the rotor inner wall surface or the rotation axis.
- Particularly suitable for this purpose are also such Pitot tubes, which are made up of several contour-connected pipe bends, which are around their
- common central longitudinal axis can be fixed transversely to the contact plane in different angular positions, so that the changed angular position leads to a radial displacement of the inlet opening.
- At least one pitot tube has a plurality of radially spaced inlet openings, which each have a separate line within the pitot tube including the end portion and the
- Outlet pipe section is assigned, wherein the different inlet openings may each have a different distance to the axis of rotation or rotor inner wall surface.
- the flowed by the liquid contour of the pitot tube is thus significantly reduced compared to several separate Pitot tubes, so that the associated
- Rotation axis is arranged. As a result, a comparatively simple sealing of the passage along the drive shaft of the rotor is achieved.
- the rotor is not limited to a cylindrical geometry. Rather, according to a particularly promising variant, the rotor can be conical or conical, at least in sections, so as to achieve additional circulation of the heavy liquid phase in the direction of the axis of rotation.
- This effect can be advantageously further optimized in conjunction with a vertical axis of rotation by the gravity acting in the direction of the axis of rotation and thereby support the flow, in particular the flow velocity, can be effected in the axial direction.
- Liquid supply are arranged, which are substantially radially to the
- prechambers are realized, which separate the pitot tube from the turbulent inlet.
- the discs are rotatably connected to the rotor and may optionally be fixable in different axial positions.
- the second object is achieved according to the invention with a centrifuge with several arranged at different radial distances to a rotation axis pitot tubes. This is the first time with the centrifuge according to the invention
- Multi-phase liquids or multi-fluid can be used by the acting in the rotor high centrifugal forces.
- the individual phases of different density in the rotor in a simple manner by one or more pitot tubes with a
- Inlet opening are tapped, which have a different radial distance from the axis of rotation.
- Fig. 1 is a sectional side view of a centrifuge according to the invention
- FIG. 2 is an enlarged detail view of the centrifuge shown in FIG. 1;
- FIG. 3 shows a variant of the centrifuge shown in FIG. 1 with a different liquid supply;
- FIG. 4 is an enlarged detailed view of the centrifuge shown in FIG. 3; FIG.
- Fig. 5 shows a further variant of the centrifuge shown in Figure 1 with axial
- Liquid supply arranged separating discs
- Fig. 6 is an enlarged detail view of the centrifuge shown in Fig. 5;
- FIG. 7 shows a side view of a pitot tube shown in FIGS. 1 to 6;
- FIG. 8 is a front view of the pitot tube shown in FIG. 7; FIG.
- FIG. 9 is a schematic diagram of a subdivided into several chambers
- Fig. 10 in a schematic representation of a rotor with a plurality of chambers, which
- Fig. 11 shows a further variant of a rotor with two pitot tubes.
- the centrifuge according to the invention will be explained in more detail below with reference to FIGS.
- the centrifuge is based on the principle of the pitot tube conveyor 1, in which a
- a multiphase liquid, a mixture, an emulsion or a solution in a rotor 2 through channels 4 is supplied.
- the liquid 3 is entrained by the rotating at high speed rotor 2 and thereby accelerated accordingly. This results in strong centrifugal forces, which lead to the separation of the liquid 3 in individual phases I, II, III different densities or in the case of a solution to a strong concentration gradient.
- the liquid supply takes place as shown in Figure 1 to the phase III, as shown in Figure 3 to the phase II or axially as shown in Figure 5 to the first phase I.
- the mounted on a hollow shaft rotor 2 is by an electric drive, not shown set in rotation.
- the centrifuge has two stationary Pitot tubes 5, which are designed so that the respective inlet openings 6 at different intervals are arranged opposite a rotor inner wall surface 7 and a rotation axis 8. This makes it possible, the individual phases I, II, III different density,
- an oil phase for example, from the inside to the outside an oil phase, an emulsion phase and a
- the pitot tube 5 does not extend radially between the rotation axis 8 and the inlet opening 6, but at least in sections follows a continuously curved, for example crescent-shaped course, between the end section having the inlet opening 6 and the outlet tube section 9.
- the pitot tube 5 in the cross-sectional plane to the rotation axis 8 has a curved course.
- Auslassrohrabites 9 meets the present in the rotor 2 liquid 3 is not frontal, ie orthogonal to the respective Staurohrabites, but at an acute angle. As a result, an undesirable stall or the generation of turbulent
- the pitot tube 5 is composed of pipe sections of different radii and extends in a cross-sectional plane to the axis of rotation 8, but optionally also in sections in the direction of the axis of rotation 8. Important is the avoidance of points of discontinuity.
- the pitot tube 5 consists only of a bent pipe section, preferably made of metal.
- the cross-sectional shape of the pitot tube 5 deviates from the circular shape A for further flow optimization and forms a wing profile with a leading edge 10, which is first flowed in operation by a flow profile of the liquid 3, and a trailing edge 11, which is subsequently impinged during operation. Due to the profiled design of the elliptical cross-section B, C in its basic form, a gradual deflection of the flow with the consequence of reduced flow losses or greater delivery heights is achieved at the same time.
- the rotor 2 as shown in each case by means of a schematic diagram in FIGS. 9 and 10, can be subdivided in the direction of its axis of rotation 8 into a plurality of chambers 12.
- the chambers 12 are each connected through openings 13 in parallel, the chambers 12 bounding separating surfaces 14, so that a separate phase of the liquid 3 can flow between the chambers 12.
- a single pitot tube 15 can be arranged in each chamber 12. Are the openings 13 of the chamber 12 arranged at a small distance from the axis of rotation 8 and the inlet opening 6 of the pitot tube 15 is at a small distance from the
- Rotor inner wall surface 7 is arranged, in each case the phase of lower density will flow into the next chamber 12 and penetrate this phase through the inlet opening 6 into the pitot tube 15.
- the liquid 3 is separated again, whereby higher purity levels can be achieved.
- the remaining remainder of the liquid 3 is also tapped by an additional pitot tube 15 and discharged from the rotor 2 to the outside.
- a plurality of Pitot tubes 5 can also be arranged in a common housing 16, which extends radially from the channel 4 and has a constant width transversely to the radial main extension, thus the turbulences occurring during the rotation to be kept as low as possible.
- the inlet openings 6 are spaced from each other on a common straight line which runs parallel to a leading edge 10 of the housing 16.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Centrifugal Separators (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112014004820.8T DE112014004820A5 (de) | 2013-10-21 | 2014-10-17 | Staurohrfördereinrichtung sowie Zentrifuge zum Trennen von Flüssigkeiten mit einem Rotor und zumindest einem Staurohr |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013111601 | 2013-10-21 | ||
DE102013111601.9 | 2013-10-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015058741A1 true WO2015058741A1 (de) | 2015-04-30 |
Family
ID=51932154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2014/100373 WO2015058741A1 (de) | 2013-10-21 | 2014-10-17 | Staurohrfördereinrichtung sowie zentrifuge zum trennen von flüssigkeiten mit einem rotor und zumindest einem staurohr |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112014004820A5 (de) |
WO (1) | WO2015058741A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4234936A1 (de) * | 2022-02-25 | 2023-08-30 | Airbus Operations GmbH | Zentrifugalreservoirpumpe zur verarbeitung eines wasserstoffstroms in einem flugzeug |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1945759A (en) * | 1932-11-16 | 1934-02-06 | G & J Weir Ltd | Rotary gas pump |
FR830172A (fr) * | 1937-01-02 | 1938-07-22 | Henschel & Sohn Gmbh | Pompe centrifuge rotative, particulièrement pour hautes pressions |
GB501943A (en) * | 1937-12-04 | 1939-03-08 | Eugene Guy Euston Beaumont | Improvements relating to centrifugal pumps |
FR924143A (fr) * | 1946-02-28 | 1947-07-28 | Procédé et appareil épurateur destinés à l'évacuation continue de sédiments contenus dans un liquide | |
US3817446A (en) | 1973-01-08 | 1974-06-18 | Kabe Inc | Pitot pump with centrifugal separator |
US3977810A (en) | 1974-09-23 | 1976-08-31 | Kobe, Inc. | Multiple outlet, constant flow, pitot pump |
-
2014
- 2014-10-17 DE DE112014004820.8T patent/DE112014004820A5/de not_active Withdrawn
- 2014-10-17 WO PCT/DE2014/100373 patent/WO2015058741A1/de active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1945759A (en) * | 1932-11-16 | 1934-02-06 | G & J Weir Ltd | Rotary gas pump |
FR830172A (fr) * | 1937-01-02 | 1938-07-22 | Henschel & Sohn Gmbh | Pompe centrifuge rotative, particulièrement pour hautes pressions |
GB501943A (en) * | 1937-12-04 | 1939-03-08 | Eugene Guy Euston Beaumont | Improvements relating to centrifugal pumps |
FR924143A (fr) * | 1946-02-28 | 1947-07-28 | Procédé et appareil épurateur destinés à l'évacuation continue de sédiments contenus dans un liquide | |
US3817446A (en) | 1973-01-08 | 1974-06-18 | Kabe Inc | Pitot pump with centrifugal separator |
US3977810A (en) | 1974-09-23 | 1976-08-31 | Kobe, Inc. | Multiple outlet, constant flow, pitot pump |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4234936A1 (de) * | 2022-02-25 | 2023-08-30 | Airbus Operations GmbH | Zentrifugalreservoirpumpe zur verarbeitung eines wasserstoffstroms in einem flugzeug |
Also Published As
Publication number | Publication date |
---|---|
DE112014004820A5 (de) | 2016-07-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69023699T2 (de) | Selbstansaugende Kreiselpumpe. | |
EP2597030B1 (de) | Vordüse für ein Antriebssystem eines Wasserfahrzeuges zur Verbesserung der Energieeffizienz | |
EP2677178B1 (de) | Pumpe | |
EP2552565B1 (de) | Vorrichtung zum filtrieren von flüssigkeiten | |
DE1817430A1 (de) | Regenerativkompressor | |
WO2016184839A1 (de) | Ölgeschmierte drehschieber-vakuumpumpe mit ölabscheide- und wiederaufbereitungseinrichtung | |
DE1301796B (de) | Hydrozyklon | |
DE2653630C2 (de) | Vorrichtung zum Pumpen von Fluiden | |
DE2341076B2 (de) | Entnahmevorrichtung fuer eine schaelpumpe | |
DE2924458C2 (de) | Extraktionsvorrichtung für die Flüssig-Flüssig-Extraktion | |
DE69302404T2 (de) | Selbstansaugende Kreiselpumpe | |
EP2789395B2 (de) | Vollmantelschneckenzentrifuge mit einer Energierückgewinnungseinrichtung | |
WO2015058741A1 (de) | Staurohrfördereinrichtung sowie zentrifuge zum trennen von flüssigkeiten mit einem rotor und zumindest einem staurohr | |
EP3303845B1 (de) | Selbstansaugende pumpenaggregation | |
DE112017006146T5 (de) | Trennbaugruppe mit einer einteiligen impulsturbine | |
DE2414610B2 (de) | Querstromlüfter | |
DE2010542C3 (de) | Zentnfugalkompressor mit Flussigkeitsbandern | |
EP2582983B1 (de) | Doppelflutige kreiselpumpe | |
DE755269C (de) | Selbstansaugende Umlaufpumpe | |
EP1717208B1 (de) | Vorrichtung zur Fluidbehandlung, insbesondere Abwasserbehandlung, mit einem Scheibenstapel | |
EP3309405A1 (de) | Pumpengehäuse und flüssigkeitspumpe mit pumpengehäuse | |
DE2049460A1 (de) | Flussigkeits Flugelradpumpe | |
AT394317B (de) | Vorrichtung zur abscheidung von gas aus material-gas-mischungen | |
DE3341111C2 (de) | Radialkreiselpumpe | |
DE700401C (de) | Vorrichtung zum Entgasen von Fluessigkeiten |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14799957 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1120140048208 Country of ref document: DE Ref document number: 112014004820 Country of ref document: DE |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: R225 Ref document number: 112014004820 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 14799957 Country of ref document: EP Kind code of ref document: A1 |