WO2017194354A1 - Labyrinthdichtung mit sensoren - Google Patents
Labyrinthdichtung mit sensoren Download PDFInfo
- Publication number
- WO2017194354A1 WO2017194354A1 PCT/EP2017/060427 EP2017060427W WO2017194354A1 WO 2017194354 A1 WO2017194354 A1 WO 2017194354A1 EP 2017060427 W EP2017060427 W EP 2017060427W WO 2017194354 A1 WO2017194354 A1 WO 2017194354A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stator
- labyrinth seal
- sealing body
- plastic
- seal according
- Prior art date
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
- F16J15/44—Free-space packings
- F16J15/447—Labyrinth packings
- F16J15/453—Labyrinth packings characterised by the use of particular materials
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/80—Labyrinth sealings
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
-
- 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
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/064—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces the packing combining the sealing function with other functions
-
- 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
- F16J15/44—Free-space packings
- F16J15/447—Labyrinth packings
- F16J15/4472—Labyrinth packings with axial path
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
- G01H1/006—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines of the rotor of turbo machines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/02—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by magnetic means, e.g. reluctance
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2233/00—Monitoring condition, e.g. temperature, load, vibration
Definitions
- the invention relates to a labyrinth seal.
- Labyrinth seals for sealing a running gap between a rotor-side component, in particular a shaft, and a stator-side component, in particular a housing are well known from the prior art.
- such labyrinth seals have stator-side sealing bodies, which have labyrinth tips facing the rotor-side component, adjoin the rotor-side component with their labyrinth tips, and thus seal the running gap between the rotor-side component and the stator-side component.
- stator-side sealing bodies which have the labyrinth tips, are made of a metallic material, in particular of aluminum.
- the rotor-side component likewise consists of a metallic material, in particular of a steel alloy whose hardness is greater than that of aluminum.
- the present invention has the object to provide a novel labyrinth seal.
- the stator-side sealing body consists of an electrically nonconductive material, wherein the stator-side sealing body receives sensors for detecting vibrations of the rotor-side component.
- stator-side sealing body for a labyrinth seal made of an electrically non-conductive material and to position sensors for detecting vibrations of the rotor-side component in the stator-side sealing body.
- the design of the stator-side sealing body made of an electrically non-conductive material ensures that the sensors integrated in the stator-side sealing body can record measured values undisturbed for the vibration detection of the rotor-side component.
- the electrically non-conductive material of the stator-side sealing body is preferably heat-resistant at temperatures of up to 100 ° C., furthermore oil-resistant and furthermore dimensionally stable at pressure differences of up to 100 mbar. Such a material for the stator-side sealing body is particularly preferred.
- the electrically non-conductive material of the stator-side sealing body is a plastic, preferably a Polyoxymethylen- plastic.
- the stator-side sealing body may consist of a fiber-reinforced plastic.
- the use of polyoxymethylene plastic is preferred for cost reasons and provides a sealing body with sufficient heat resistance, oil resistance and dimensional stability.
- the respective sensor is inserted into a bore, in particular in a sealing gas supply bore, the stator-side sealing body. This makes possible a particularly compact design of the labyrinth seal with vibration sensors integrated in the stator-side sealing body.
- Fig. 2 a radial section through the labyrinth seal Fig. 1 in the cutting direction
- the invention relates to a labyrinth seal.
- the labyrinth seal 10 for sealing a running gap 11 between a stator-side component, in particular a housing and a rotor-side component, in particular a shaft.
- the labyrinth seal 10 has a stator-side sealing body 12 which is inserted into a recess of the stator-side component, not shown, in particular of the housing and having at a radially inner surface 13 labyrinth peaks 14, the running gap 1 1 between the stator-side sealing body 12 and a radially outer surface 15 of a rotor-side member 1 6 seal.
- the stator-side sealing body 12 of the labyrinth seal 10 is made of an electrically non-conductive material. This material is especially at temperatures up to 80 ° C, preferably up to 100 ° C, heat resistant, also oil resistant and further at pressure differences up to 50 mbar, preferably up to 100 mbar, dimensionally stable.
- the stator-side sealing body 12 is made of an electrically non-conductive plastic, preferably of polyoxymethylene plastic (POM plastic) or alternatively of polytetrafluoroethylene plastic (PTFE plastic) or of a polyetheretherketone plastic (PEEK plastic).
- POM plastic polyoxymethylene plastic
- PTFE plastic polytetrafluoroethylene plastic
- PEEK plastic polyetheretherketone plastic
- stator-side sealing body 12 of the labyrinth seal 10 is composed of two halves 12a, 12b, wherein FIG. 1 visualizes the parting plane 17 between these two halves 12a, 12b of the stator-side sealing body 12.
- These sensors 18 are preferably path transducers which detect a gap change of the nip 1 1 via eddy currents induced in the metallic material of the rotor-side component 1 6.
- an HF signal or high-frequency signal with defined energy is generated from an auxiliary voltage.
- This RF signal is fed to an encoder of the sensor 18, wherein the energy is transmitted back to a coil of the sensor 18. If the metallic, rotor-side component 1 6 cuts the energy field, eddy currents are induced in the surface of the rotor-side component 16 and a measurable loss of energy occurs. The smaller the gap, the higher the energy loss.
- This measurement principle of the transducer is basically known.
- stator-side sealing body 12 which consists of the electrically non-conductive material, preferably two such sensors 18, which are offset at the periphery by an angle ß of 90 ° ⁇ 5 ° to each other.
- stator-side sealing body 12 of a labyrinth seal 10 has at least one sealing gas feed bore 19.
- the respective sensor 18 in the stator-side sealing body 12 may be provided to position the respective sensor 18 in such a sealing gas feed bore 19 and a cable 20 for contacting the sensor 18 via this sealing gas feed bore 19 to the outside.
- the present invention it is therefore proposed to integrate sensors that are used to detect vibrations of a rotor-side component in labyrinth seals, namely in the stator-side sealing body of such a labyrinth seal, which is made of an electrically non-conductive material, in particular from a corresponding Plastic.
- the sensors By integrating the sensors in the stator-side sealing body of the labyrinth seal, it is possible to save construction space. Due to the fact that the stator-side sealing body is made of the electrically non-conductive material, the vibration sensors can record and provide undisturbed corresponding measured values.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17721999.5A EP3455526A1 (de) | 2016-05-09 | 2017-05-02 | Labyrinthdichtung mit sensoren |
CA3022166A CA3022166A1 (en) | 2016-05-09 | 2017-05-02 | Labyrinth seal with sensors |
CN201780028954.5A CN109154393A (zh) | 2016-05-09 | 2017-05-02 | 带有传感器的迷宫式密封件 |
KR1020187035559A KR20190015293A (ko) | 2016-05-09 | 2017-05-02 | 센서를 구비하는 라비린스 시일 |
JP2018558756A JP2019516050A (ja) | 2016-05-09 | 2017-05-02 | センサを具備するラビリンスシール |
US16/099,626 US20190120387A1 (en) | 2016-05-09 | 2017-05-02 | Labyrinth Seal With Sensors |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016108463.8 | 2016-05-09 | ||
DE102016108463.8A DE102016108463A1 (de) | 2016-05-09 | 2016-05-09 | Labyrinthdichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017194354A1 true WO2017194354A1 (de) | 2017-11-16 |
Family
ID=58672582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2017/060427 WO2017194354A1 (de) | 2016-05-09 | 2017-05-02 | Labyrinthdichtung mit sensoren |
Country Status (8)
Country | Link |
---|---|
US (1) | US20190120387A1 (de) |
EP (1) | EP3455526A1 (de) |
JP (1) | JP2019516050A (de) |
KR (1) | KR20190015293A (de) |
CN (1) | CN109154393A (de) |
CA (1) | CA3022166A1 (de) |
DE (1) | DE102016108463A1 (de) |
WO (1) | WO2017194354A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7370704B2 (ja) | 2016-02-23 | 2023-10-30 | ジョン クレイン ユーケー リミティド | メカニカルシステムの予測診断のためのシステム及び方法 |
EP3844426A1 (de) | 2018-10-08 | 2021-07-07 | John Crane UK Ltd. | Mechanische dichtung mit sensor |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0629800A1 (de) * | 1993-06-15 | 1994-12-21 | Garlock Inc. | Wellendichtung mit kontrollierter Porösität |
DE19612540A1 (de) * | 1995-07-03 | 1997-01-09 | Bosch Gmbh Robert | Schwingungsaufnehmer mit Druckhülse |
WO2009089318A1 (en) * | 2008-01-08 | 2009-07-16 | The Timken Company | Segmented labyrinth seal |
US20100244386A1 (en) * | 2009-02-17 | 2010-09-30 | Aktiebolaget Skf | Labyrinth seal and method of producing a labyrinth seal |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2828311A1 (de) * | 1978-06-28 | 1980-01-10 | Maschf Augsburg Nuernberg Ag | Vorrichtung zur ueberwachung von betriebswerten eines lagers |
DE3022861C2 (de) * | 1980-06-19 | 1983-12-08 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen | Strömungsmaschine, insbesondere Heißgasturbine, und Verfahren zur selbsttätigen kontinuierlichen Beeinflussung des Labyrinthdichtugsspieles der Strömungsmaschine |
JPH08189569A (ja) * | 1995-01-09 | 1996-07-23 | Hitachi Ltd | 軸封装置 |
CZ194096A3 (cs) * | 1995-07-03 | 1998-09-16 | Robert Bosch Gmbh | Snímač kmitání s přítlačným pouzdrem |
GB2372298B (en) * | 1998-04-17 | 2002-09-25 | Rolls Royce Plc | A seal arrangement |
WO2001016510A1 (en) * | 1999-08-27 | 2001-03-08 | Eskom | A seal assembly |
JP3862453B2 (ja) * | 1999-09-10 | 2006-12-27 | Ntn株式会社 | 車輪軸受装置 |
JP4857485B2 (ja) * | 2001-04-25 | 2012-01-18 | 日本精工株式会社 | エンコーダ付車輪用回転支持装置 |
JP2005133772A (ja) * | 2003-10-29 | 2005-05-26 | Koyo Seiko Co Ltd | シール装置およびそれを用いた転がり軸受装置 |
US7025559B2 (en) * | 2004-06-04 | 2006-04-11 | General Electric Company | Methods and systems for operating rotary machines |
RU2361140C2 (ru) * | 2004-10-22 | 2009-07-10 | Буркхардт Компрешн Аг | Работающая без смазки система уплотнения штока и способ уплотнения штока с помощью работающей без смазки системы уплотнения штока |
KR100878460B1 (ko) * | 2007-07-06 | 2009-01-13 | 한국과학기술연구원 | 래비린스 시일 |
US8333551B2 (en) * | 2007-09-28 | 2012-12-18 | General Electric Company | Embedded fiber optic sensing device and method |
US9322478B2 (en) * | 2012-07-31 | 2016-04-26 | General Electric Company | Seal system and method for rotary machine |
DE202013101140U1 (de) * | 2013-03-17 | 2014-06-18 | Paul Müller GmbH & Co. KG Unternehmensbeteiligungen | Dichtelement |
GB201514651D0 (en) * | 2015-08-18 | 2015-09-30 | Rolls Royce Plc | Sealing arrangements |
-
2016
- 2016-05-09 DE DE102016108463.8A patent/DE102016108463A1/de not_active Ceased
-
2017
- 2017-05-02 EP EP17721999.5A patent/EP3455526A1/de not_active Withdrawn
- 2017-05-02 CA CA3022166A patent/CA3022166A1/en not_active Abandoned
- 2017-05-02 WO PCT/EP2017/060427 patent/WO2017194354A1/de unknown
- 2017-05-02 CN CN201780028954.5A patent/CN109154393A/zh active Pending
- 2017-05-02 US US16/099,626 patent/US20190120387A1/en not_active Abandoned
- 2017-05-02 KR KR1020187035559A patent/KR20190015293A/ko not_active Application Discontinuation
- 2017-05-02 JP JP2018558756A patent/JP2019516050A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0629800A1 (de) * | 1993-06-15 | 1994-12-21 | Garlock Inc. | Wellendichtung mit kontrollierter Porösität |
DE19612540A1 (de) * | 1995-07-03 | 1997-01-09 | Bosch Gmbh Robert | Schwingungsaufnehmer mit Druckhülse |
WO2009089318A1 (en) * | 2008-01-08 | 2009-07-16 | The Timken Company | Segmented labyrinth seal |
US20100244386A1 (en) * | 2009-02-17 | 2010-09-30 | Aktiebolaget Skf | Labyrinth seal and method of producing a labyrinth seal |
Also Published As
Publication number | Publication date |
---|---|
KR20190015293A (ko) | 2019-02-13 |
US20190120387A1 (en) | 2019-04-25 |
CN109154393A (zh) | 2019-01-04 |
CA3022166A1 (en) | 2017-11-16 |
EP3455526A1 (de) | 2019-03-20 |
DE102016108463A1 (de) | 2017-11-09 |
JP2019516050A (ja) | 2019-06-13 |
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