DE3006656A1 - Seal acting simultaneously as pressure monitoring sensor - consists of multilayer annular or coaxial electrodes and of dielectric - Google Patents
Seal acting simultaneously as pressure monitoring sensor - consists of multilayer annular or coaxial electrodes and of dielectricInfo
- Publication number
- DE3006656A1 DE3006656A1 DE19803006656 DE3006656A DE3006656A1 DE 3006656 A1 DE3006656 A1 DE 3006656A1 DE 19803006656 DE19803006656 DE 19803006656 DE 3006656 A DE3006656 A DE 3006656A DE 3006656 A1 DE3006656 A1 DE 3006656A1
- Authority
- DE
- Germany
- Prior art keywords
- seal
- dielectric
- pressure
- electrode layers
- pressure monitoring
- Prior art date
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
- G01L1/142—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/003—Auxiliary devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
- G01L9/0005—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using variations in capacitance
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
Dichtungpoetry
Stand der Technik Die Erfindung geht aus von einer Dichtung nach der Gattung des Hauptanspruzhes.PRIOR ART The invention is based on a seal according to Type of main claim.
Es sind bereits Dichtungen in einer Vielzahl von Formen und Ausführungen bekannt, beispielsweise in flächenhafter Form oder als O-Ring. Derartige Dichtungen sind je nach Anwendungsfall dimensioniert und das Dichtungsmaterial wird üblicherweise in Abhängigkeit von den zu erwartenden Arbeitsbedingungen, denen die Dichtung ausgesetzt ist, ausgewählt.There are already seals in a variety of shapes and designs known, for example in planar form or as an O-ring. Such seals are dimensioned depending on the application and the sealing material is usually depending on the expected working conditions to which the seal is exposed is selected.
Da Dichtungen in der Regel zum Abdichten von Rohrleitungen, Behältern und dgl. dienen, die unter einem gewissen inneren Arbeitsdruck stehen, kann es bei bestimmten Anwendungsfällen wünschenswert sein, gleichzeitig den Arbeitsdruck zu überwachen.Because seals are usually used to seal pipelines, containers and the like, which are under a certain internal working pressure, it can with certain applications may be desirable to simultaneously increase the working pressure monitor.
Vorteile der Erfindung Die erfindungsgemäße Dichtung mit den kennzeichnenden Merkmalen des Hauptanspruches hat demgegenüber den Vorteil, neben einer Dichtungsfunktion gleichzeitig eine Druckgeberfunktion auszuüben. Dadurch ist es möglich, mit Hilfe eines einzigen Bauelementes gleichzeitig die gewünschte Dichtungswirkung und Drucküberwachung durchführen zu können. Außerdem ist die erfindungsgemäße Dichtung einfach aufgebaut und aus preisgünstigen Werkstoffen herstellbar.Advantages of the invention The seal according to the invention with the characterizing Features of the main claim has the advantage, in addition to a sealing function simultaneously exercise a pressure transmitter function. This makes it possible with help a single component, the desired sealing effect and pressure monitoring at the same time to be able to perform. In addition, the seal according to the invention has a simple structure and can be produced from inexpensive materials.
Schließlich steht das dem Druck entspreohende Signal unmittelbar als aktives Signal zur Verfüg#r0, chne daß aufwendige Hilfsmeßverfahren, beispielsweise Hochfrequenzverfahren, wie sie bei kapazitiven fschlei#ungsaufnehmern verwendet werden, erforderlich sind.Finally, the signal corresponding to the pressure is immediately available as active signal available, see that complex auxiliary measuring methods, for example High-frequency process as used in capacitive loop sensors are required.
Zeichnung Ausführungsbeispiele von erfindungsgemäßen Dichtungen sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen: Fig. 1 ein erstes Ausführungsbeispiel einer erfindungsgemäßen flachen Ringdichtung; Fig. 2 ein zweites Ausführungs%#ispiel einer erfindungsgemäßen flachen Ringdichtung; Fig. 3 eine erfindungsgemäße Dichtung in Form eines 0-Ringes.Drawings are exemplary embodiments of seals according to the invention shown in the drawing and explained in more detail in the following description. 1 shows a first exemplary embodiment of a flat according to the invention Ring seal; 2 shows a second embodiment of a flat according to the invention Ring seal; 3 shows a seal according to the invention in the form of an O-ring.
Beschreibung der Ausführungsbeispiele Bei der in Fig. 1 dargestellten Anordnung ist zwischen zwei Flanschen 10, 11 eine flache Ringdichtung angeordnet, die mehrlagig aufgebaut ist. Zwischen zwei Isolierschichten 12 befinden sich zwei Elektrodenschichten 13 und in der Mitte ist ein Dielektrikum 14 angeordnet. Die Elektrodenschichten 13 sind über Leitungen 151, 152 mit einem Verstärker 15 verbunden.Description of the exemplary embodiments In the case of the one shown in FIG Arrangement, a flat ring seal is arranged between two flanges 10, 11, which is built up in several layers. There are two between two insulating layers 12 Electrode layers 13 and a dielectric 14 is arranged in the middle. the Electrode layers 13 are connected to an amplifier 15 via lines 151, 152.
Es ist bekannt, daß es beim Zusammenstoß zweier elektrisch neutraler Körper zu einer gegenseitigen Beeinflussung der gebundenen elektrostatischen Oberflächenladung kommt. Dies hat bei der Anordnung gemäß Fig. 1 zur Folge, daß bei auftretendem Druck eine Volumendeformation des Dielektrikums 14 zwischen den Elektrodenschichten 13 auftritt und damit ein aktives Signal, das dem auftretenden Druck entspricht, auf den Verstärker 15 gelangt und von dort in geeigneter Weise weiter verarbeitet werden kann.It is known that when two collisions occur, it is electrically neutral Body to a mutual influence of the bound electrostatic surface charge comes. In the arrangement according to FIG. 1, this has the consequence that when pressure occurs a volume deformation of the dielectric 14 between the electrode layers 13 occurs and thus an active signal that corresponds to the pressure occurring reaches the amplifier 15 and is further processed from there in a suitable manner can.
Die Anordnung entsprechend Fig. 2 entsprIcht weitgehend derwenigen in Fig. 1, mit der Abweichung, daß die erflntungsgemaße Dichtung mit Druckgeberfunktion an der Zell angeordnet ist, an der die beiden Flansche iG, 11 miteir.=nder verschraubt werden und neben der erfindungsgern#ßen Dichtung, bestehend aus den Schichten 12, 13 und dem Dielektrikum 14 eine übliche Dichtung 16 zur Rohrinnenseite hin angeordnet ist. Eine derartige Anordnung empfiehlt E tch in den Fällen, in denen besonders aggressive Betriebsbedingungen von Seiten des Druckmediums vorliegen und daher eine übliche Dichtung 16 aus speziellem Werkstoff, die dem Druckmedium ausgesetzt ist, verwendet werden muß, wenn die erfindungsgemäße Dichtung in mehrlagiger Bauweise für das speziell verwendete Druckmedium nicht geeignet ist.The arrangement according to FIG. 2 largely corresponds to the few in Fig. 1, with the difference that the inventive seal with pressure transmitter function is arranged on the cell to which the two flanges iG, 11 miteir. = nder screwed and in addition to the gasket according to the invention, consisting of layers 12, 13 and the dielectric 14, a conventional seal 16 is arranged on the inside of the pipe is. E tch recommends such an arrangement in those cases in which particularly aggressive operating conditions are present on the part of the print medium and therefore a Usual seal 16 made of a special material that is exposed to the pressure medium, must be used if the seal according to the invention has a multilayer construction is not suitable for the particular print medium being used.
Schließlich ist in Fig. 3 eine weitere Ausführungsform einer erfindungsgemäßen Dichtung dargestellt. Ähnlich wie bei der Ausführungsform gemäß Fig. 2 ist an der Innenseite der Rohrverbindung durch die Flansche 10, 11 eine übliche Dichtung 16 angebracht, wobei die erfindungsgemäße Dichtung als 0-Ring 17 ausgebildet ist. Der Ausbau des G-Rings 17 geht aus Fig. 3a hervor. Danach ist der C-Ring 17 koaxial aufgebaut, wobei eine Elektrodenschicht 13' als Innenleiter und eine weitere Elektrodenschicht 13'' als Außenleiter ausgebildet ist, zwischen denen sich als Zwischenschicht das Dielektrikum 14 befindet. Wird Druck auf die Rohrverbindung durch die Flansche 10, 11 ausgeübt, ergibt sich der gleiche physikalische Effekt, wie er zur Anordnung gemäß Fig. 1 im einzelnen erläutert wurde. Es kann demnach zwischen der Elektrodenschicht 13' und der weiteren Elektrodenschicht 13'' über die Leitungen 151, 152 ein Drucksignal abgenommen und dem Verstärker 15 zugeleitet werden.Finally, in Fig. 3 is a further embodiment of an inventive Seal shown. Similar to the embodiment of FIG. 2 is at the Inside the pipe connection through the flanges 10, 11 a conventional seal 16 attached, the seal according to the invention being designed as an O-ring 17. Of the Expansion of the G-ring 17 can be seen from Fig. 3a. Thereafter, the C-ring 17 is coaxial constructed, with an electrode layer 13 'as an inner conductor and a further electrode layer 13 '' designed as an outer conductor is between which acts as an intermediate layer the dielectric 14 is located. Pressure is exerted on the pipe connection through the flanges 10, 11 exercised, there is the same physical effect as it is for the arrangement according to FIG. 1 was explained in detail. It can therefore be between the electrode layer 13 'and the further electrode layer 13' 'via the lines 151, 152 a pressure signal removed and fed to the amplifier 15.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803006656 DE3006656A1 (en) | 1980-02-22 | 1980-02-22 | Seal acting simultaneously as pressure monitoring sensor - consists of multilayer annular or coaxial electrodes and of dielectric |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803006656 DE3006656A1 (en) | 1980-02-22 | 1980-02-22 | Seal acting simultaneously as pressure monitoring sensor - consists of multilayer annular or coaxial electrodes and of dielectric |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3006656A1 true DE3006656A1 (en) | 1981-09-17 |
DE3006656C2 DE3006656C2 (en) | 1990-06-13 |
Family
ID=6095295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19803006656 Granted DE3006656A1 (en) | 1980-02-22 | 1980-02-22 | Seal acting simultaneously as pressure monitoring sensor - consists of multilayer annular or coaxial electrodes and of dielectric |
Country Status (1)
Country | Link |
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DE (1) | DE3006656A1 (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0140066A1 (en) * | 1983-09-15 | 1985-05-08 | Robert Bosch Gmbh | Device for detecting forces, tensions or accelerations at machines, apparatuses or the like |
DE3534352A1 (en) * | 1984-09-26 | 1986-03-27 | Ngk Spark Plug Co., Ltd., Nagoya, Aichi | SEALED PRESSURE GAUGE |
US5066023A (en) * | 1987-10-16 | 1991-11-19 | Ford Motor Company | Ionization sensor |
EP0691488A1 (en) * | 1994-07-07 | 1996-01-10 | Firma Carl Freudenberg | Flat gasket |
US6003872A (en) * | 1993-12-30 | 1999-12-21 | Nord; Klaus Juergen | Method of monitoring a seal for correct operation, and monitoring device for carrying out the method |
EP1086877A2 (en) | 1999-09-27 | 2001-03-28 | Kuno Probst | Vehicle especially adapted for transporting people |
WO2004070333A2 (en) * | 2003-02-07 | 2004-08-19 | Universität Leipzig | Method for determining at least one state parameter of a sealing system and sealing system |
DE10305110B3 (en) * | 2003-02-07 | 2004-08-19 | Universität Leipzig | Determining at least one state parameter of sealing system involves measuring real and/or imaginary parts of complex dielectric function of dielectric element, preferably at frequency above 10-2 Hz |
DE102004025135A1 (en) * | 2004-05-17 | 2005-12-15 | Pt-Poly-Tec Gmbh Vertrieb Und Herstellung Von Dichtsystemen | Method and arrangement for leakage warning and component positioning display in socket joints |
WO2005119197A1 (en) * | 2004-06-04 | 2005-12-15 | Alfa Laval Corporate Ab | Method and device for assessing the risk of fluid leakage in a heat exchanger with sensor |
EP1674769A1 (en) * | 2004-12-21 | 2006-06-28 | Carl Freudenberg KG | Sealing arrangement |
EP1900978A1 (en) * | 2006-09-15 | 2008-03-19 | Carl Freudenberg KG | Supporting body for fluidic connection from machine elements |
EP2143982A1 (en) | 2008-07-11 | 2010-01-13 | Kempchen Leuna GmbH | Seal assembly for a flange connection |
WO2011019888A1 (en) * | 2009-08-13 | 2011-02-17 | Parker-Hannifin Corporation | Sealing assembly with integral sensor |
RU2561813C1 (en) * | 2014-07-07 | 2015-09-10 | Олег Юрьевич Исаев | Sealing of main socket of pump unit of power nuclear stations |
BE1022261B1 (en) * | 2013-08-12 | 2016-03-07 | Kempchen Dichtungstechnik Gmbh | DICHTUNGSRING, DICHTUNGSANORDNUNG SOWIE VERFAHREN ZUR MOUNTING EINES DICHTUNGSRINGS |
CN105466649A (en) * | 2015-12-28 | 2016-04-06 | 苏州宝骅机械技术有限公司 | Sealing assembly for detection of compaction load and utilization method for same |
GB2495251B (en) * | 2010-07-22 | 2017-09-20 | Baker Hughes Inc | Smart seals and other elastomer systems for health and pressure monitoring |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4101871A1 (en) * | 1991-01-23 | 1992-07-30 | Univ Leipzig | Pressure sensing flat seal - comprises piezoelectric sensor sheet between electrically insulating vapour-proof protective ones |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH493769A (en) * | 1967-08-24 | 1970-07-15 | Denso Chemie Gmbh | Elastic sealing ring |
GB1462136A (en) * | 1973-11-14 | 1977-01-19 | Emh | Pipe connector |
DE2706211A1 (en) * | 1976-12-09 | 1978-06-15 | Marconi Co Ltd | DETECTOR RESPONDING TO PRESSURE |
-
1980
- 1980-02-22 DE DE19803006656 patent/DE3006656A1/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH493769A (en) * | 1967-08-24 | 1970-07-15 | Denso Chemie Gmbh | Elastic sealing ring |
GB1462136A (en) * | 1973-11-14 | 1977-01-19 | Emh | Pipe connector |
DE2706211A1 (en) * | 1976-12-09 | 1978-06-15 | Marconi Co Ltd | DETECTOR RESPONDING TO PRESSURE |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0140066A1 (en) * | 1983-09-15 | 1985-05-08 | Robert Bosch Gmbh | Device for detecting forces, tensions or accelerations at machines, apparatuses or the like |
DE3534352A1 (en) * | 1984-09-26 | 1986-03-27 | Ngk Spark Plug Co., Ltd., Nagoya, Aichi | SEALED PRESSURE GAUGE |
US5066023A (en) * | 1987-10-16 | 1991-11-19 | Ford Motor Company | Ionization sensor |
US6003872A (en) * | 1993-12-30 | 1999-12-21 | Nord; Klaus Juergen | Method of monitoring a seal for correct operation, and monitoring device for carrying out the method |
EP0691488A1 (en) * | 1994-07-07 | 1996-01-10 | Firma Carl Freudenberg | Flat gasket |
EP1086877A2 (en) | 1999-09-27 | 2001-03-28 | Kuno Probst | Vehicle especially adapted for transporting people |
WO2004070333A2 (en) * | 2003-02-07 | 2004-08-19 | Universität Leipzig | Method for determining at least one state parameter of a sealing system and sealing system |
DE10305110B3 (en) * | 2003-02-07 | 2004-08-19 | Universität Leipzig | Determining at least one state parameter of sealing system involves measuring real and/or imaginary parts of complex dielectric function of dielectric element, preferably at frequency above 10-2 Hz |
WO2004070333A3 (en) * | 2003-02-07 | 2005-06-16 | Univ Leipzig | Method for determining at least one state parameter of a sealing system and sealing system |
DE102004025135B4 (en) * | 2004-05-17 | 2006-04-20 | Pt-Poly-Tec Gmbh Vertrieb Und Herstellung Von Dichtsystemen | Method and arrangement for leakage warning and component positioning display in socket joints |
DE102004025135A1 (en) * | 2004-05-17 | 2005-12-15 | Pt-Poly-Tec Gmbh Vertrieb Und Herstellung Von Dichtsystemen | Method and arrangement for leakage warning and component positioning display in socket joints |
US7857036B2 (en) | 2004-06-04 | 2010-12-28 | Alfa Laval Corporate Ab | Method and device for assessing the risk of fluid leakage in a heat exchanger with sensor |
WO2005119197A1 (en) * | 2004-06-04 | 2005-12-15 | Alfa Laval Corporate Ab | Method and device for assessing the risk of fluid leakage in a heat exchanger with sensor |
US7568516B2 (en) | 2004-06-04 | 2009-08-04 | Alfa Laval Corporate Ab | Method and device for assessing the risk of fluid leakage in a heat exchanger with sensor |
AU2005250750B2 (en) * | 2004-06-04 | 2010-01-28 | Alfa Laval Corporate Ab | Method and device for assessing the risk of fluid leakage in a heat exchanger with sensor |
AU2009251056B2 (en) * | 2004-06-04 | 2010-10-07 | Alfa Laval Corporate Ab | Method and device for assessing the risk of fluid leakage in a heat exchanger with sensor |
EP1674769A1 (en) * | 2004-12-21 | 2006-06-28 | Carl Freudenberg KG | Sealing arrangement |
EP1900978A1 (en) * | 2006-09-15 | 2008-03-19 | Carl Freudenberg KG | Supporting body for fluidic connection from machine elements |
EP2143982A1 (en) | 2008-07-11 | 2010-01-13 | Kempchen Leuna GmbH | Seal assembly for a flange connection |
WO2011019888A1 (en) * | 2009-08-13 | 2011-02-17 | Parker-Hannifin Corporation | Sealing assembly with integral sensor |
US20120119448A1 (en) * | 2009-08-13 | 2012-05-17 | Stewart Shelby F | Sealing assembly with integral sensor |
US8448949B2 (en) | 2009-08-13 | 2013-05-28 | Parker-Hannifin Corporation | Sealing assembly with integral sensor |
GB2495251B (en) * | 2010-07-22 | 2017-09-20 | Baker Hughes Inc | Smart seals and other elastomer systems for health and pressure monitoring |
BE1022261B1 (en) * | 2013-08-12 | 2016-03-07 | Kempchen Dichtungstechnik Gmbh | DICHTUNGSRING, DICHTUNGSANORDNUNG SOWIE VERFAHREN ZUR MOUNTING EINES DICHTUNGSRINGS |
RU2561813C1 (en) * | 2014-07-07 | 2015-09-10 | Олег Юрьевич Исаев | Sealing of main socket of pump unit of power nuclear stations |
CN105466649A (en) * | 2015-12-28 | 2016-04-06 | 苏州宝骅机械技术有限公司 | Sealing assembly for detection of compaction load and utilization method for same |
Also Published As
Publication number | Publication date |
---|---|
DE3006656C2 (en) | 1990-06-13 |
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