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MX9304995A - Obturacion de cara terminal mecanica perfeccionada. - Google Patents

Obturacion de cara terminal mecanica perfeccionada.

Info

Publication number
MX9304995A
MX9304995A MX9304995A MX9304995A MX9304995A MX 9304995 A MX9304995 A MX 9304995A MX 9304995 A MX9304995 A MX 9304995A MX 9304995 A MX9304995 A MX 9304995A MX 9304995 A MX9304995 A MX 9304995A
Authority
MX
Mexico
Prior art keywords
gas
process fluid
buffer
seal
nitrogen
Prior art date
Application number
MX9304995A
Other languages
English (en)
Inventor
James R Wasser
Douglas J Volden
James P Netzel
Original Assignee
Crane John Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25485177&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX9304995(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Crane John Inc filed Critical Crane John Inc
Publication of MX9304995A publication Critical patent/MX9304995A/es

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
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • F16J15/406—Sealings between relatively-moving surfaces by means of fluid by at least one pump
    • 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
    • F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
    • 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
    • F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
    • F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
    • F16J15/3412—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/927—Seal including fluid pressure differential feature

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Sealing (AREA)
  • Sealing Devices (AREA)
  • Gasket Seals (AREA)
  • Sealing Material Composition (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

Un obturador doble de cara terminal mecánico orientado reverso a reverso para uso en la hermetización de fluidos tóxicos o corrosivos, que tiene una cámara para fluidos intermedia de amortiguación en la cual se dispone un gas relativamente inerte, tal como el nitrógeno, para usarse como líquido de amortiguación. El gas de nitrógeno se mantiene a una presión que excede la presión de fluido de proceso en por lo menos 0.7kg/cm2 y, en una modalidad preferencial, canales espirales de bombeo en los anillos coincidentes de cada una de las obturaciones se encuentran en una configuración y unas dimensiones tales que pueden bombear el gas de nitrógeno a través de la primera obturación desde la cámara intermedia hacia la cámara de fluido de proceso y a través de la segunda obturación desde la cámara intermedia hacia el ambiente externo a la carcasa y el área de hermetización, para de esta manera evitar el escape del fluido de proceso hacia la cámara de amortiguador intermedio y a la atmósfera. La contaminación del fluido de proceso por parte del gas de proceso se puede tolerar. El gas de amortiguación puede ser cualquier gas relativamente inerte, un gas que no sea dañino para el ambiente y sea compatible con el fluido de proceso que sea utilice; los ejemplos para estos gases son el nitrógeno, el bióxido de carbono, el aire o uno de los gases nobles. La obturación se puede usar para hermetizar un fluido de procesamiento el cual puede ser liquido o un gas.
MX9304995A 1992-09-18 1993-08-17 Obturacion de cara terminal mecanica perfeccionada. MX9304995A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07946914 US5375853B1 (en) 1992-09-18 1992-09-18 Gas lubricated barrier seal

Publications (1)

Publication Number Publication Date
MX9304995A true MX9304995A (es) 1994-03-31

Family

ID=25485177

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9304995A MX9304995A (es) 1992-09-18 1993-08-17 Obturacion de cara terminal mecanica perfeccionada.

Country Status (13)

Country Link
US (2) US5375853B1 (es)
EP (1) EP0592113B1 (es)
JP (1) JPH074528A (es)
KR (1) KR940007405A (es)
CN (1) CN1036485C (es)
AT (1) ATE175260T1 (es)
AU (1) AU667384B2 (es)
BR (1) BR9303430A (es)
CA (1) CA2097367C (es)
DE (1) DE69322829T2 (es)
MX (1) MX9304995A (es)
TW (1) TW253018B (es)
ZA (1) ZA933894B (es)

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Also Published As

Publication number Publication date
EP0592113A1 (en) 1994-04-13
BR9303430A (pt) 1994-03-22
EP0592113B1 (en) 1998-12-30
ZA933894B (en) 1994-10-25
US5713576A (en) 1998-02-03
CA2097367C (en) 2004-02-24
AU4444493A (en) 1994-03-24
KR940007405A (ko) 1994-04-27
TW253018B (es) 1995-08-01
AU667384B2 (en) 1996-03-21
CN1085636A (zh) 1994-04-20
CN1036485C (zh) 1997-11-19
ATE175260T1 (de) 1999-01-15
DE69322829T2 (de) 1999-08-05
DE69322829D1 (de) 1999-02-11
US5375853A (en) 1994-12-27
US5375853B1 (en) 1998-05-05
CA2097367A1 (en) 1994-03-19
JPH074528A (ja) 1995-01-10

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