EP1559916A2 - Utilisation d'éléments céramique sollicités en flexion et en compression dans des pompes - Google Patents

Utilisation d'éléments céramique sollicités en flexion et en compression dans des pompes Download PDF

Info

Publication number: EP1559916A2
Authority: EP; European Patent Office
Prior art keywords: housing; compensation elements; drive shaft; intermediate walls; axial direction
Prior art date: 2004-01-28
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

Application number

EP05001629A

Other languages

German (de)

English (en)

Other versions

EP1559916A3 (fr

EP1559916B1 (fr

Inventor

Edgar Czudnochowski

Stefan Leuchtenberger

Roland Fach

Klaus Engels

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Venator Germany GmbH

Original Assignee

Sachtleben Chemie GmbH

Priority date (The priority date 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 date listed.)

2004-01-28

Filing date

2005-01-27

Publication date

2005-08-03

2005-01-27 Application filed by Sachtleben Chemie GmbH filed Critical Sachtleben Chemie GmbH

2005-08-03 Publication of EP1559916A2 publication Critical patent/EP1559916A2/fr

2010-01-13 Publication of EP1559916A3 publication Critical patent/EP1559916A3/fr

2011-09-21 Application granted granted Critical

2011-09-21 Publication of EP1559916B1 publication Critical patent/EP1559916B1/fr

2025-01-27 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

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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)

EP05001629A 2004-01-28 2005-01-27 Utilisation d'éléments céramique sollicités en flexion et en compression dans des pompes Expired - Lifetime EP1559916B1 (fr)

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 (fr)	2005-08-03
EP1559916A3 EP1559916A3 (fr)	2010-01-13
EP1559916B1 EP1559916B1 (fr)	2011-09-21

Family

ID=34638769

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP05001629A Expired - Lifetime EP1559916B1 (fr)	2004-01-28	2005-01-27	Utilisation d'éléments céramique sollicités en flexion et en compression dans des pompes

Country Status (4)

Country	Link
EP (1)	EP1559916B1 (fr)
AT (1)	ATE525572T1 (fr)
DE (1)	DE102004004159A1 (fr)
ES (1)	ES2374678T3 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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/fr not_active Expired - Lifetime

Also Published As

Publication number	Publication date
ES2374678T3 (es)	2012-02-21
EP1559916A3 (fr)	2010-01-13
ATE525572T1 (de)	2011-10-15
DE102004004159A1 (de)	2005-08-25
EP1559916B1 (fr)	2011-09-21

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