EP1559916A2 - Einsatz von druck- und biegebeanspruchten keramischen Bauteilen in Pumpen - Google Patents
Einsatz von druck- und biegebeanspruchten keramischen Bauteilen in Pumpen Download PDFInfo
- Publication number
- EP1559916A2 EP1559916A2 EP05001629A EP05001629A EP1559916A2 EP 1559916 A2 EP1559916 A2 EP 1559916A2 EP 05001629 A EP05001629 A EP 05001629A EP 05001629 A EP05001629 A EP 05001629A EP 1559916 A2 EP1559916 A2 EP 1559916A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- compensation elements
- drive shaft
- intermediate walls
- axial direction
- 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
Images
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
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0465—Ceramic bearing designs
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- 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
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/20—Oxide or non-oxide ceramics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
Definitions
- the invention relates to a pump with a arranged in a metallic housing Drive shaft, which in a pumping room with an impeller for conveying liquid media is connected, in which the delivery chamber to a drive side the drive shaft is connected via a sealing space and the sealing space from arranged on the drive shaft in the axial direction one behind the other Impellers consists, which are arranged between one another in the axial direction Rotate partitions of the housing.
- Pumps or circulating pumps are used, for example, in the chemical industry used for pumping and / or circulating aggressive media (see EP 0 476 744 B1, EP 1 225 379 A1, EP 1 225 342 A1).
- the invention is based on the object, an intermediate wall system for the Shaft sealing system in the sealing space to find that the operational safety and availability and reduces maintenance costs.
- this object is achieved in that the intermediate walls consist of a ceramic and to each other and the housing via elastic Abut compensation elements.
- Ceramic materials generally tend to brittle fracture in a pressure and Bending load and stresses from a shock and heat load. However, these materials are extremely resistant to aggressive Media.
- the ceramic partitions according to the invention are therefore almost resistant against these aggressive media. Because these ceramic partitions have a different thermal expansion than the surrounding housing, According to the invention, the intermediate walls against each other and on the housing via elastic compensation elements.
- the elastic compensation elements consist of a Fluorine elastomer, preferably Viton B.
- This material is excellently as Compensating element because it has both high chemical resistance and Has sealing property as well as an extremely high elasticity.
- the ceramic partitions are located to each other via flat gaskets as compensation elements.
- the intermediate walls are on the housing in the axial direction as well on flat gaskets as compensation elements. Lie on the housing in the radial direction the partitions preferably via O-rings as compensation walls.
- This single figure shows a shaft sealing system (hereinafter also sealing space called) a pump that promotes aggressive media.
- a drive shaft 1 drives an impeller (not shown) in a delivery chamber 8.
- the delivery chamber 8 is from the drive side 9 via a shaft sealing system separated in the sealing space 10.
- wheels 6 (at This embodiment, there are two wheels 6) arranged with the Drive shaft 1 rotate and in the axial direction of the drive shaft 1 in a row are arranged.
- the wheels 6 rotate here between one another in the axial direction arranged ceramic partitions 3 a, 3 b, 3 c.
- compensation elements 5 d - i are in this case fluoroelastomers, preferably Viton B.
- the conveyor chamber 8 facing intermediate wall 3 a is located on the housing 2 in the radial direction via an O-ring 5 d and in the axial direction via a flat gasket 5 i on.
- the side facing the drive side 9 intermediate wall 3 c lies in the radial direction of Drive shaft 1 on the rear wall 7 via an O-ring 5 g and in the axial direction 5 h via a flat gasket.
- a ceramic-ceramic seal pairing (5 e, 5 f) is always over Flat gaskets and a ceramic-metal sealing mating preferred over O-rings.
- a bore arranged in this, in which a centering and guiding unit 4 inserted is preferably made of wood or plastic.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Mechanical Sealing (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims (5)
- Pumpe mit einer in einem metallischen Gehäuse (2) angeordneten Antriebswelle (1), die in einem Förderraum (8) mit einem Laufrad zum Fördern flüssiger Medien verbunden ist, bei der der Förderraum (8) zu einer Antriebseite (9) der Antriebswelle (1) über einen Abdichtungsraum (10) verbunden ist und der Abdichtungsraum (10) aus auf der Antriebswelle (1) in Axialrichtung hintereinander angeordneten Laufrädern (6) besteht, die zwischen in Axialrichtung hintereinander angeordneten Zwischenwänden (3a, 3 b, 3 c) des Gehäuses (2) rotieren, dadurch gekennzeichnet, dass die Zwischenwände (3 a, 3 b, 3 c) aus einer Keramik bestehen und aneinander und am Gehäuse (2) über elastische Kompensationselemente (5 d - i) anliegen.
- Pumpe nach Anspruch 1, dadurch gekennzeichnet, dass die elastischen Kompensationselemente (5 d - i) aus einem Fluor-Elastomer, bevorzugt Viton B bestehen.
- Pumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Zwischenwände (3 a, 3 b, 3 c) aneinander über Flachdichtungen (5 e, 5 f) als Kompensationselemente anliegen.
- Pumpe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Zwischenwände (3 a, 3 b, 3 c) am Gehäuse (2) in Radialrichtung über O-Ringe (5 d, 5 g) als Kompensationselemente anliegen.
- Pumpe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Zwischenwände (3 a, 3 b, 3 c) am Gehäuse (2) in Axialrichtung über Flachdichtungen (5 i, 5 h) als Kompensationselemente anliegen.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004004159 | 2004-01-28 | ||
| DE102004004159A DE102004004159A1 (de) | 2004-01-28 | 2004-01-28 | Einsatz von statisch und dynamisch druck- und biegebeanspruchten keramischen Bauteilen als Druckentlastungselemente in Pumpen |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1559916A2 true EP1559916A2 (de) | 2005-08-03 |
| EP1559916A3 EP1559916A3 (de) | 2010-01-13 |
| EP1559916B1 EP1559916B1 (de) | 2011-09-21 |
Family
ID=34638769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05001629A Expired - Lifetime EP1559916B1 (de) | 2004-01-28 | 2005-01-27 | Einsatz von druck- und biegebeanspruchten keramischen Bauteilen in Pumpen |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1559916B1 (de) |
| AT (1) | ATE525572T1 (de) |
| DE (1) | DE102004004159A1 (de) |
| ES (1) | ES2374678T3 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2556931C3 (de) * | 1975-08-21 | 1980-03-20 | Mitsui Kinzoku Engineering Service Co., Ltd. | Abwasserpumpe |
| DE3826472A1 (de) * | 1988-08-04 | 1990-02-08 | Klein Schanzlin & Becker Ag | Kreiselpumpe keramischer bauart |
| DE19712324C2 (de) * | 1997-03-24 | 2000-05-11 | Renner Gmbh | Umwälzpumpe oder Rührwerk für erwärmte chemische Lösungen |
| DE10102103A1 (de) * | 2001-01-18 | 2002-09-12 | Sachtleben Chemie Gmbh | Dichtungsbalgsystem für rotierende Wellen |
-
2004
- 2004-01-28 DE DE102004004159A patent/DE102004004159A1/de not_active Withdrawn
-
2005
- 2005-01-27 AT AT05001629T patent/ATE525572T1/de active
- 2005-01-27 ES ES05001629T patent/ES2374678T3/es not_active Expired - Lifetime
- 2005-01-27 EP EP05001629A patent/EP1559916B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES2374678T3 (es) | 2012-02-21 |
| EP1559916A3 (de) | 2010-01-13 |
| ATE525572T1 (de) | 2011-10-15 |
| DE102004004159A1 (de) | 2005-08-25 |
| EP1559916B1 (de) | 2011-09-21 |
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