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WO2010006685A1 - Dispositif à bague d’étanchéité glissante - Google Patents

Dispositif à bague d’étanchéité glissante Download PDF

Info

Publication number
WO2010006685A1
WO2010006685A1 PCT/EP2009/004568 EP2009004568W WO2010006685A1 WO 2010006685 A1 WO2010006685 A1 WO 2010006685A1 EP 2009004568 W EP2009004568 W EP 2009004568W WO 2010006685 A1 WO2010006685 A1 WO 2010006685A1
Authority
WO
WIPO (PCT)
Prior art keywords
boron
sliding
mechanical seal
slide ring
composite material
Prior art date
Application number
PCT/EP2009/004568
Other languages
German (de)
English (en)
Inventor
Josef Irmler
Original Assignee
Burgmann Industries Gmbh & Co. Kg
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.)
Filing date
Publication date
Application filed by Burgmann Industries Gmbh & Co. Kg filed Critical Burgmann Industries Gmbh & Co. Kg
Publication of WO2010006685A1 publication Critical patent/WO2010006685A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3496—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member use of special materials

Definitions

  • the present invention relates to a mechanical seal assembly in which at least one sliding surface is made of a boron-nitrogen composite material.
  • the mechanical seal assembly according to the invention has the advantage that it manages in particular without an expensive diamond coating.
  • at least one sliding surface of one of the two sliding rings of the mechanical seal assembly is made of a boron-nitrogen composite material.
  • a boron-nitrogen composite also has a relatively high hardness and, in particular, has an improved high-temperature property compared with a diamond coating.
  • the boron-nitrogen composite lacks the property of diamond that carbon dissolves in iron at high temperatures.
  • a rotating seal ring and / or a stationary seal ring of the mechanical seal assembly is made entirely of a boron-nitrogen composite material.
  • problems of adhesion of a surface layer to a base material can thereby be avoided.
  • no signs of wear occur in a solid sliding ring made of boron-nitrogen composite material in practical application.
  • the boron-nitrogen composite material particularly preferably comprises cumulated nanoparticles of two dense boron nitride phases.
  • the nanoparticles preferably have a size between 12 and 16 nanometers, in particular a size of 14 nanometers.
  • the crystal size is reduced to about 14 nm, the densest crystal structures are formed, so that the Boron nitrogen composite material has the highest hardness.
  • such materials also have almost three times greater wear resistance than a diamond coating and are stable up to temperatures of about 1320 ° C.
  • the boron-nitrogen composite is completely free of carbon. This ensures that even at high temperatures, the material does not dissolve in iron due to the absence of carbon.
  • Boron nitride is preferably used as the boron-nitrogen composite material.
  • boron nitride is used as the material for the slip rings, either as a coating or as a solid material.
  • FIG. 1 shows a schematic sectional view of a mechanical seal assembly according to an embodiment of the invention.
  • the mechanical seal assembly 1 comprises a first stationary seal ring 2 and a second rotary ring seal 3.
  • the rotary seal ring 3 rotates together with a rotating member 10, e.g. a wave.
  • the two slip rings have opposing sliding surfaces 2a, 3a, which define a sealing gap 4 between them.
  • the mechanical seal assembly 1 seals between a first space 5 and a second space 6 on the rotating shaft 10. Further, the mechanical seal assembly 1 comprises a biasing means 7 with a power transmission ring 8 and a plurality of circumferentially distributed biasing springs 9. The biasing means 7 biases the stationary seal ring 2 against the rotating seal ring 3. With X-X while a rotation axis of the rotating member 10 is designated.
  • the stationary seal ring 2 and the rotary seal ring 3 are made of boron-nitrogen composite material.
  • the boron-nitrogen composite is made from a variety of nanoparticles having a size of about 14 nm. This allows extremely dense tall Fashion of the two sliding rings 2, 3 are achieved, so that the slip rings 2, 3 have a very high hardness and a very high temperature resistance. Furthermore, the slip rings made from the boron-nitrogen composite material have a very high wear resistance. In comparison with diamond-coated slip rings, the sliding rings 2, 3 according to the invention can thereby be manufactured relatively inexpensively and simply, since they are in particular made of massive mass of the boron-nitrogen composite material.
  • the mechanical seal assembly according to the invention can be used in particular in applications in which hitherto the extremely expensive diamond-coated slip rings are used.
  • the massive slip rings have significantly better properties, in particular with regard to temperature stability and wear resistance at high temperatures.
  • the massive formation of the sliding rings of boron-nitrogen composite material also has no liability problems at high temperatures as the previously used coated seal rings.
  • particularly long service life of the seal rings 2, 3 can be achieved and in particular maintenance intervals for the mechanical seal assembly can be significantly increased.
  • the sliding rings 2, 3 according to the invention also have outstanding emergency running properties.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Sealing (AREA)

Abstract

La présente invention concerne un dispositif à bague d’étanchéité glissante, comportant une première bague glissante fixe (2) présentant une première surface de glissement (2a) et une seconde bague d’étanchéité rotative (3) présentant une seconde surface de glissement (3a). La bague d’étanchéité glissante rotative (3) tourne conjointement à un élément rotatif (10), les surfaces de glissement (2a, 3a) des bagues d’étanchéité glissantes (2, 3) se faisant face et définissant entre elles une fente d'étanchéité (4), la première surface de glissement (2a) de la première bague d’étanchéité glissante (2) et/ou la seconde surface de glissement (3a) de la seconde bague d’étanchéité glissante (3) étant fabriquées à partir d’un matériau composite en nitrure de bore.
PCT/EP2009/004568 2008-07-17 2009-06-24 Dispositif à bague d’étanchéité glissante WO2010006685A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200820009607 DE202008009607U1 (de) 2008-07-17 2008-07-17 Gleitringdichtungsanordnung
DE202008009607.3 2008-07-17

Publications (1)

Publication Number Publication Date
WO2010006685A1 true WO2010006685A1 (fr) 2010-01-21

Family

ID=39744717

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/004568 WO2010006685A1 (fr) 2008-07-17 2009-06-24 Dispositif à bague d’étanchéité glissante

Country Status (2)

Country Link
DE (1) DE202008009607U1 (fr)
WO (1) WO2010006685A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105526361A (zh) * 2015-11-09 2016-04-27 宁波市鄞州飞矢机械密封件厂 机械密封件
WO2019185907A1 (fr) 2018-03-29 2019-10-03 Universite Paris Est Creteil Val De Marne Dérivés de phénylalanine destinés à être utilisés dans le traitement de cancers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013223226B4 (de) * 2013-11-14 2015-09-17 Eagleburgmann Germany Gmbh & Co. Kg Gleitringdichtungsanordnung mit verbessertem Abströmverhalten eines Kühl- und/oder Sperrmediums

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4205858A (en) * 1977-12-08 1980-06-03 Taiho Kogyo Co., Ltd. Shaft-sealing sliding member
WO1983004293A1 (fr) * 1982-05-24 1983-12-08 Clark Eugene V Ameliorations a des structures de joints mecaniques
FR2590594A1 (fr) * 1985-11-28 1987-05-29 Toshiba Kk Element mecanique portant un revetement ceramique anti-usure et sa fabrication.
EP0476825A1 (fr) * 1990-08-10 1992-03-25 Sumitomo Electric Industries, Limited Procédé pour la synthèse de nitrure de bore dur

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007016868U1 (de) 2007-12-04 2008-02-14 Burgmann Industries Gmbh & Co. Kg Gleitring einer Gleitringdichtungsanordnung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4205858A (en) * 1977-12-08 1980-06-03 Taiho Kogyo Co., Ltd. Shaft-sealing sliding member
WO1983004293A1 (fr) * 1982-05-24 1983-12-08 Clark Eugene V Ameliorations a des structures de joints mecaniques
FR2590594A1 (fr) * 1985-11-28 1987-05-29 Toshiba Kk Element mecanique portant un revetement ceramique anti-usure et sa fabrication.
EP0476825A1 (fr) * 1990-08-10 1992-03-25 Sumitomo Electric Industries, Limited Procédé pour la synthèse de nitrure de bore dur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105526361A (zh) * 2015-11-09 2016-04-27 宁波市鄞州飞矢机械密封件厂 机械密封件
WO2019185907A1 (fr) 2018-03-29 2019-10-03 Universite Paris Est Creteil Val De Marne Dérivés de phénylalanine destinés à être utilisés dans le traitement de cancers

Also Published As

Publication number Publication date
DE202008009607U1 (de) 2008-09-11

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