• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Invention m. used to seal the stems of high pressure valves in power plants. The purpose of the invention is to increase the durability of the seal. In the housing 1 there is a sleeve 2 and sealing elements in the form of pressure and sealing rings 3 and 4 with a gasket placed between them, tightly covering the sealing surface. The gasket is made of expanded graphite. One of the rings 3 and 4 m. made in the form of a layered ring and alternating discs of expanded graphite and metal foil. The outer layer of the laminated ring is made of metal foil, due to which a further seal is created due to the maze effect and no breakthrough of the seal occurs, 1 h. the item of f-ly, 2 silt,
    公开号:SU1720503A3
    申请号:SU884356134
    申请日:1988-07-03
    公开日:1992-03-15
    发明作者:Тюкмантель Ханс-Иоахим
    申请人:Кемпхен Унд Ко, Гмб Х. (Фирма)；
    IPC主号:
    专利说明:

    city of
    The invention relates to a sealing technique and can be used to seal rods or shafts, in particular for valve rods of high pressure in power plants.
    The purpose of the invention is to increase the durability of the seal.
    The invention is illustrated in the drawings, where in FIG. 1 shows the stuffing box seal; in fig. 2 is node I in FIG. one.
    The gland seal has a seal body 1 and a sleeve 2, as well as sealing rings 3-5, which tightly fit on one side to the seal body 1, and on the other hand to the movable sealing element 6, the shaft or the rod, in particular high pressure valve stem. At least one of the sealing rings, for example, the middle ring 4, is made of expanded graphite rings 3 and 4, which are supporting and pressure, or one of them can be made in the form of a layered ring. In particular, the laminated ring can be pressed from laminated annular discs 7 of a film of expanded graphite and intermediate annular layers 8 of metal foil. The metal foil is made of stainless steel, for example, austeitio chromium-nickel steel.
    If the stuffing box packing consists of more than three sealing rings, then a laminated ring in a set of sealing rings can be installed in different places. In the exemplary embodiment, both the support ring 3 and the pressure ring 5 are made in the form of a layered ring. Laminated ring contributes to the functions of the winding pressed
    rings. It acts as an oil scraper ring and thereby prevents adhesion with the sealing element 6, for example a stem. If the layered ring consists only of layered annular discs 7 of a film of expanded graphite, then the internal strength of the material of this layered ring in the radial direction will be greater than the internal strength
    material graphite winding extruded ring 4 in the radial direction. Then, when from these laminated rings a leak of a graphite particle does not cause leaks on the laminated rings, on the contrary,
    self-healing effect. In particular, the rings remain dense, which have intermediate annular layers, and, if necessary, metallic foil rings. Due to the latter, additional compaction is created due to the maze effect and no compaction breakthrough occurs.
    权利要求:
    Claims (2)
    [1]
    1. A gland seal containing bushing and sealing elements in the housing in the form of pressure and support rings placed between them
    gasket, hermetically covering the sealing surface, characterized in that, in order to increase the durability of the seal, the gasket is made of expanded graphite, and at least one of
    rings - in the form of a layered ring and alternating discs of expanded graphite and metal foil.
    [2]
    2. Sealing under item 1, that is, with the fact that, not less than one external
    the layer of the layered ring is made of metallic foil.
    6
    2
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1720503A3|1992-03-15|Stuffing box seal
    US3351350A|1967-11-07|High pressure rod seal
    US3565449A|1971-02-23|Head gasket assembly having parts therein
    EP0046774B1|1984-09-12|Stuffing box packing system
    US3712647A|1973-01-23|Pipe connection
    US3235274A|1966-02-15|Shaft seal
    KR920012798A|1992-07-27|Improved Graphite Packing
    US1635482A|1927-07-12|Packing
    WO1988002454A1|1988-04-07|Shaft seal
    US2269486A|1942-01-13|Self-sealing gasket
    GB1215240A|1970-12-09|Sealing device and flange joint including such device
    ES8502773A1|1985-02-01|Improved valve seat.
    US2931673A|1960-04-05|Pressure seal
    US2898167A|1959-08-04|Reinforced seal ring
    US3434728A|1969-03-25|Means of automatically adjusting hydraulic pneumatic packings
    US3773337A|1973-11-20|Bellows seal
    US4557487A|1985-12-10|Hybrid seal with both static and dynamic seal rings
    SE8401816D0|1984-04-02|REVERSE LIP POSITIVE WAITING SEAL
    US2442687A|1948-06-01|Packing for stuffing boxes
    US2553750A|1951-05-22|Packing ring
    RU2138715C1|1999-09-27|Sealing unit for locking-regulating fitting stem
    GB2069631A|1981-08-26|A sealing element
    US2709630A|1955-05-31|Piston ring
    US605891A|1898-06-21|Steam-packing
    JPH08219291A|1996-08-27|Metal covered gasket
    同族专利:
    公开号 | 公开日
    DE3721967C1|1987-12-03|
    NL8801688A|1989-02-01|
    DE3745040C2|1998-06-18|
    GB8815832D0|1988-08-10|
    DD285401A5|1990-12-12|
    DK371488D0|1988-07-04|
    BE1001916A3|1990-04-10|
    DK164564C|1992-11-30|
    DE3745040A1|1992-12-03|
    US4892320A|1990-01-09|
    GB2206657B|1991-01-30|
    FR2617561B1|1990-08-03|
    NL192579B|1997-06-02|
    FR2617561A1|1989-01-06|
    GB2206657A|1989-01-11|
    DK164564B|1992-07-13|
    NL192579C|1997-10-03|
    DK371488A|1989-01-04|
    引用文献:
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    RU2502909C1|2012-08-20|2013-12-27|Закрытое акционерное общество "УНИХИМТЕК" |Ball valve|US1543963A|1923-07-25|1925-06-30|Crane Packing Co|Metallic packing|
    US2188664A|1937-11-27|1940-01-30|Westinghouse Electric & Mfg Co|Valve stem packing|
    US2251211A|1939-11-15|1941-07-29|Garlock Packing Co|Packing|
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    US3761055A|1971-11-08|1973-09-25|Okano Valve Seizo Kk|Freeze seal for sodium valves|
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    US4068853A|1975-09-30|1978-01-17|Union Carbide Corporation|Stuffing box seal|
    US4090719A|1977-03-28|1978-05-23|Vapor Corporation|Packing assembly|
    US4116451A|1977-06-16|1978-09-26|Maurer Engineering, Inc.|Shaft seal assembly and seal ring therefor|
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    DE3645156C2|1985-12-03|1992-02-13|Klinger Ag, Zug, Ch|Sealing ring for sliding piston of stop-cock|
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    FR2658893B1|1990-02-23|1994-02-11|Supranite Ste Indle Equip Meca|PROCESS FOR PRODUCING A SEALING RING AND PRODUCT OBTAINED ACCORDING TO THE PROCESS.|
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    DE4016541C2|1990-05-23|1994-04-07|Kempchen & Co Gmbh|Gland packing|
    US5129624A|1990-11-15|1992-07-14|M&Fc Holding Company, Inc.|Valve stem sealing means for prevention of fugitive emissions|
    DE69131526T2|1990-12-21|2000-05-04|Fisher Controls Int|Graphite gasket|
    US5421594A|1991-02-14|1995-06-06|Marine & Petroleum Mfg., Inc.|Gasket|
    DE4116934C2|1991-05-24|1993-04-08|Kempchen & Co. Gmbh, 4200 Oberhausen, De|
    DE4118446A1|1991-06-05|1992-12-10|Ditec Marketing Ag|METHOD FOR PRODUCING RINGS FROM CLEAN GRAPHITE FILMS AND RINGS PRODUCED BY THE PROCESS|
    DE4120514C2|1991-06-21|1997-09-04|Kempchen & Co Gmbh|Stuffing box seal|
    US5156181A|1991-07-22|1992-10-20|Allied-Signal Inc.|Removable seats for a dual poppet valve|
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    US5823542A|1995-12-22|1998-10-20|Lamons Metal Gasket Co.|Spiral wound gasket|
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    US6247679B1|1998-03-02|2001-06-19|T&S Solutions, Inc.|Valve stem and method of manufacture; improved stem packing|
    US6250604B1|1998-03-02|2001-06-26|T & R Solutions, Inc.|Valve stem and method of manufacturing, improved stem packing|
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    FR2788323B1|1999-01-11|2001-03-30|Valeo Systemes Dessuyage|MOTOR GEARBOX FOR WINDSCREEN WIPER OF MOTOR VEHICLE WITH BASE AND CARCASE|
    US20060220327A1|2001-02-19|2006-10-05|Russell Larry R|Groove-mounted seals with integral antiextrusion device|
    US7055829B2|2000-02-21|2006-06-06|Russell Larry R|Antiextrusion device|
    DE10025189B4|2000-05-20|2011-12-08|Helmut Bälz GmbH|Valve with improved load capacity|
    DE10056896B4|2000-11-13|2005-01-13|Köthener Spezialdichtungen GmbH|Modified graphite sealing system|
    US7021632B2|2004-03-04|2006-04-04|Flowserve Management Company|Self-energized gasket and manufacturing method therefor|
    ITTO20070519A1|2007-07-12|2009-01-14|Seval Srl|LAMELLAR METAL GASKETS AND PRODUCTION PROCEDURE|
    US8727310B2|2008-10-24|2014-05-20|Fisher Controls International Llc|Packing followers for use with valves|
    SG2012071635A|2009-03-27|2014-04-28|Cameron Int Corp|Full bore compression sealing method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3721967A|DE3721967C1|1987-07-03|1987-07-03|Stuffing box seal|
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