EP2235376A1 - Vorrichtung zum pumpen von gashaltigen suspensionen, insbesondere faserstoffsuspensionen - Google Patents
Vorrichtung zum pumpen von gashaltigen suspensionen, insbesondere faserstoffsuspensionenInfo
- Publication number
- EP2235376A1 EP2235376A1 EP08866530A EP08866530A EP2235376A1 EP 2235376 A1 EP2235376 A1 EP 2235376A1 EP 08866530 A EP08866530 A EP 08866530A EP 08866530 A EP08866530 A EP 08866530A EP 2235376 A1 EP2235376 A1 EP 2235376A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- fluidizing
- wings
- suspensions
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
- F04D7/045—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous with means for comminuting, mixing stirring or otherwise treating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2277—Rotors specially for centrifugal pumps with special measures for increasing NPSH or dealing with liquids near boiling-point
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2288—Rotors specially for centrifugal pumps with special measures for comminuting, mixing or separating
Definitions
- the invention relates to a device for pumping gaseous suspensions, in particular pulp suspensions, with a fluidizing rotor with one or more vanes and a pump impeller and a discharge nozzle, wherein the fluidizing rotor is arranged in the suction nozzle of the pump and having a hub, wherein the fluidizing rotor at the inlet end is free in the center and the wings act freely without stiffening or connection with each other.
- An advantageous development of the invention is characterized in that the fluidizing rotor protrudes beyond the suction nozzle of the pump. As a result, the suspension to be pumped can be more easily fed to the suction nozzle.
- Fluidizing rotor wide wings whereby an overlap of Saugstutzenqueritess of more than 40%, advantageously more than 60% is achieved. If the surface of the wings at the entrance end is arranged nearly perpendicular to the axis, the entry losses can be greatly reduced.
- the fluidization rotor has four wings.
- the invention also relates to a rotor for a pump for pumping gaseous suspensions, in particular pulp suspensions, which is characterized in that the ratio of the free length Fi of the fluidizing rotor to the fluidizing rotor diameter Dr is between 0% and 75%, advantageously between 10% and 20 % is.
- the fluidization rotor has four wings.
- a good power distribution can be achieved.
- FIG. 1 is a 3D view of a fluidization rotor and impeller according to the invention
- Fig. 2 is a view of a device according to the invention
- Fig. 3 is a plan view of the Fluidmaschinesrotor.
- FIG. 1 shows a pump 1 with fluidizing rotor 2, which has a hub 3. At the entrance end 4, the surfaces of the wings 5 are perpendicular to the axis of
- Fluidizing rotor 2 arranged. As a result, the hydraulic entry losses are minimized, thereby increasing the efficiency of the pump.
- the fluidizing rotor 2 is arranged in the suction port 6 of the pump 1, wherein the fluidized suspension, in particular pulp suspension, by the impeller is promoted to the discharge nozzle 7.
- the fluidizing rotor 2 extends beyond the suction nozzle 6, for example, into the container from which the suspension is to be pumped out, thereby enabling the suspension to be more easily fed to the suction nozzle 6.
- the hub 3 of the fluidizing rotor 2 is fastened to the pump shaft 9 by means of a screw 8.
- FIG. 2 shows a fluidizing rotor 2 according to the invention of a pump 1.
- the fluidizing rotor 2 is free at the inlet end 4 in the center and the wings 5 act freely without stiffening or connection with each other.
- This free end has a free length Fi, which extends from the end to the hub 3. It has proved to be particularly advantageous if the
- Ratio of the free length of the fluidizing rotor Fi for Fluidmaschinesrotor- diameter Dr between 0% and 75%, advantageously about 40%.
- This configuration results in a fluidization rotor 2, which is very stable and can be used for virtually all applications.
- a fluidizing rotor 2 according to the invention is shown, in which very well the four wings 5 can be seen, which then converge in the hub 3 in the center and subsequently promote the suspension, in particular pulp suspension in the discharge nozzle of the pump.
- the wings 5 also have a strength that ensures the necessary stability.
- the chosen design ensures, above all, that when gas-containing
- Suspensions in particular gasc termen pulp suspensions, the gas is deposited on the wings of the suspension and removed, whereby a complex and costly vacuum pump can be omitted.
- the invention is not limited by the examples. It may also be e.g. other dimensions are chosen, which are highly dependent on the size and the capacity of the pump. However, essential are the basic design of the fluidization rotor and the arrangement in the pump housing / suction, whereby the fluidization rotor presses the separated gas from the pump and no additional facilities to a
- Vacuum generation are more necessary.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Paper (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL08866530T PL2235376T3 (pl) | 2008-01-03 | 2008-12-29 | Urządzenie do pompowania zawiesin zawierających gaz, a zwłaszcza zawiesin substancji włóknistych |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0000608A AT506202B1 (de) | 2008-01-03 | 2008-01-03 | Vorrichtung zum pumpen von gashaltigen suspensionen, insbesondere faserstoffsuspensionen |
| PCT/AT2008/000476 WO2009082775A1 (de) | 2008-01-03 | 2008-12-29 | Vorrichtung zum pumpen von gashaltigen suspensionen, insbesondere faserstoffsuspensionen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2235376A1 true EP2235376A1 (de) | 2010-10-06 |
| EP2235376B1 EP2235376B1 (de) | 2017-11-22 |
Family
ID=40456873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08866530.2A Active EP2235376B1 (de) | 2008-01-03 | 2008-12-29 | Vorrichtung zum pumpen von gashaltigen suspensionen, insbesondere faserstoffsuspensionen |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP2235376B1 (de) |
| CN (1) | CN101910642B (de) |
| AT (1) | AT506202B1 (de) |
| BR (1) | BRPI0821822B1 (de) |
| ES (1) | ES2657215T3 (de) |
| PL (1) | PL2235376T3 (de) |
| PT (1) | PT2235376T (de) |
| RU (1) | RU2530979C2 (de) |
| WO (1) | WO2009082775A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10087946B2 (en) * | 2016-02-09 | 2018-10-02 | Brunswick Corporation | Centrifugal pumps having anti-air-locking features |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4637779A (en) * | 1985-05-17 | 1987-01-20 | Kamyr, Inc. | Two stage medium consistency pulp pumping |
| SE467466B (sv) * | 1989-03-29 | 1992-07-20 | Kamyr Ab | Apparat foer fluidisering, gasavskiljning och pumpning av en suspension av fiberhaltigt cellulosamaterial, samt dess anvaendning |
| US5087171A (en) * | 1989-07-25 | 1992-02-11 | Goulds Pumps, Incorporated | Paper pulp centrifugal pump with gas separation |
| SE504976C2 (sv) * | 1995-09-07 | 1997-06-02 | Kvaerner Pulping Tech | Fibermassasuspensionspump med inbyggd vakuumpump |
| SE9802178L (sv) * | 1998-06-17 | 1999-04-12 | Sunds Defibrator Ind Ab | Centrifugalpump för pumpning av en massasuspention |
| SE512984C2 (sv) * | 1998-10-13 | 2000-06-12 | Valmet Fibertech Ab | Massapump |
| AUPP750898A0 (en) * | 1998-12-04 | 1999-01-07 | Warman International Limited | Impeller relating to froth pumps |
| FI111023B (fi) * | 1998-12-30 | 2003-05-15 | Sulzer Pumpen Ag | Menetelmä ja laite materiaalin pumppaamiseksi sekä laitteen yhteydessä käytettävä roottori |
| CN2844522Y (zh) * | 2005-01-31 | 2006-12-06 | 江苏飞跃机泵制造有限公司 | 渣浆泵 |
-
2008
- 2008-01-03 AT AT0000608A patent/AT506202B1/de active
- 2008-12-29 CN CN200880123710.6A patent/CN101910642B/zh not_active Ceased
- 2008-12-29 WO PCT/AT2008/000476 patent/WO2009082775A1/de not_active Ceased
- 2008-12-29 ES ES08866530.2T patent/ES2657215T3/es active Active
- 2008-12-29 BR BRPI0821822-6A patent/BRPI0821822B1/pt active IP Right Grant
- 2008-12-29 EP EP08866530.2A patent/EP2235376B1/de active Active
- 2008-12-29 RU RU2010130431/06A patent/RU2530979C2/ru active
- 2008-12-29 PL PL08866530T patent/PL2235376T3/pl unknown
- 2008-12-29 PT PT88665302T patent/PT2235376T/pt unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009082775A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101910642A (zh) | 2010-12-08 |
| BRPI0821822B1 (pt) | 2020-05-12 |
| PT2235376T (pt) | 2018-01-30 |
| CN101910642B (zh) | 2014-05-14 |
| RU2010130431A (ru) | 2012-02-10 |
| ES2657215T3 (es) | 2018-03-02 |
| RU2530979C2 (ru) | 2014-10-20 |
| AT506202B1 (de) | 2010-05-15 |
| BRPI0821822A2 (pt) | 2019-09-03 |
| PL2235376T3 (pl) | 2018-04-30 |
| AT506202A1 (de) | 2009-07-15 |
| WO2009082775A1 (de) | 2009-07-09 |
| EP2235376B1 (de) | 2017-11-22 |
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