WO2010061109A2 - Procédé d'évaluation de l'étanchéité d'une enceinte d'un servomoteur - Google Patents
Procédé d'évaluation de l'étanchéité d'une enceinte d'un servomoteur Download PDFInfo
- Publication number
- WO2010061109A2 WO2010061109A2 PCT/FR2009/052256 FR2009052256W WO2010061109A2 WO 2010061109 A2 WO2010061109 A2 WO 2010061109A2 FR 2009052256 W FR2009052256 W FR 2009052256W WO 2010061109 A2 WO2010061109 A2 WO 2010061109A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- enclosure
- servomotor
- fluid suction
- pressure
- assembly
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/34—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by testing the possibility of maintaining the vacuum in containers, e.g. in can-testing machines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3272—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
Definitions
- the present invention relates to a method of evaluating the tightness of an enclosure of a servomotor. It also relates to a device for implementing the method.
- a servomotor is designed to generate a precise movement of a mechanical element, for example an industrial valve, according to an external command.
- a servomotor is thus a motorized system capable of reaching predetermined positions and then maintaining them. The position is, in the case of a rotary servomotor, a corner position, and, in the case of a linear servomotor, a distance position. Starting and maintaining the predetermined position are controlled by the external control.
- An important parameter for the correct operation of the servomotor is its sealing. Indeed, in certain environments under fluid pressure, such as in nuclear power plants, the servomotors must be able to withstand high water vapor pressures, for example up to 5 or 6 bars.
- the servomotor although deemed waterproof, may have sealing defects due for example to a faulty seal or an incorrectly fitted electrical cable in a servomotor cable entry. If the servomotor is not perfectly sealed, pressurized water vapor may enter the actuator and damage the electrical equipment of the actuator.
- the invention proposes a method for achieving this objective.
- the subject of the invention is thus a method for evaluating the tightness of an enclosure of a servomotor, the servomotor comprising an engine assembly capable of generating a movement of a mechanical element, a position detection assembly of the mechanical element removably connected to a connector, and a mechanical assembly removably connected to a connector and comprising the mechanical element and a manual control system, the mechanical assembly also comprising a communication space between the enclosure, the connector and the motor assembly, the communication space being insulated and sealed vis-à-vis the mechanical element, the method being implemented in operational configuration of the servomotor, the connectors provided with their respective cables being installed, to test the tightness of the motor assembly, position detection assembly and connectors.
- the method according to the invention comprises the following steps: a step of decreasing the pressure inside said enclosure, from an initial pressure, and up to a set pressure, by the implementation of a fluid suction means connected to the booster by means of an opening of the enclosure, the opening being able to be closed by a plug, when the pressure inside said enclosure is equal to the set pressure, a step of determining the evolution of the pressure inside said enclosure as a function of time, during a predetermined time interval, the fluid suction means being no longer used during this step, said fluid suction means being further connected to said enclosure so as to prevent, between the fluid suction means and the chamber, any fluid passage in the opposite direction of the fluid suction direction, and
- the enclosure of the booster can be considered as sealed if, during the evolution of determined pressure, the difference between the pressure inside the booster enclosure and the set pressure is less than a predetermined value.
- the initial pressure inside the chamber of the booster is advantageously 1 bar.
- the difference between the initial pressure inside the chamber of the booster and the set pressure is preferably between 0.7 and 0.9 bar, and even more preferably between 0.75 and 0.85 bar.
- the duration of the predetermined time interval of the step of determining the pressure evolution is preferably between 10 and 20 minutes.
- the process can be implemented in a nuclear power plant.
- the invention also relates to a device for evaluating the tightness of an enclosure of a servomotor.
- the device according to the invention comprises:
- a servomotor comprising a motor assembly adapted to generate a movement of a mechanical element, a position detection assembly of the mechanical element removably connected to a connector, and a mechanical assembly removably connected to a connector; and comprising the mechanical element and a manual control system, the mechanical assembly also comprising a communication space between the enclosure, the connector and the motor assembly, the communication space being insulated and sealed vis-à-vis of the mechanical element, the connectors provided with their respective cables being installed, in order to test the tightness of the motor assembly, the position detection assembly and the connectors,
- a fluid suction means connected to the booster by means of an opening of the enclosure, the opening being able to be closed by a plug
- the fluid suction means may be a pump, and the means for preventing fluid passage in the opposite direction of the fluid suction direction may be a non-return device, such as a non-return valve.
- FIG. 1 schematically illustrates a device making it possible to implement the method according to the invention, in the operational configuration of the device, and
- the device 1 according to the invention, as shown in Figure 1, comprises a pump 2 fed by a battery, not shown.
- the pump 2 is connected inside an enclosure 3 of a servomotor 4 by means of a duct 5.
- the device 1 further comprises a check valve 6 and a pressure sensor 7, arranged successively along of the duct 5, between the pump 2 and the enclosure 3.
- an opening is made in the chamber 3 of the servomotor 4, in order to connect the pump 2 to the Servomotor 4.
- the opening may be closed by a plug 8, which is for example screwed on the enclosure 3.
- the plug 8 is chosen so as to maintain the tightness of the enclosure 3 when the opening is closed by the plug 8.
- the plug 8 is unscrewed and an adapter screwed into the orifice of the servomotor 4 is connected to a quick connector 9 disposed at the end of the duct 5.
- the servomotor 4 typically comprises a motor assembly 11 adapted to generate a movement of a mechanical element, a set 12 of position detection of the mechanical element, and a set 13 comprising the mechanical element and a manual control system .
- the assembly 13 also comprises a communication space between the enclosure 3, a connector 16 and the motor assembly 11. The communication space is insulated and sealed vis-à-vis the mechanical element.
- the mechanical element of the assembly 13 is actuated by a manual control wheel 14 disposed outside the chamber 3.
- the position detection assembly 12 may be detachably connected, for example by screwing, to a connector 15.
- the connector 15 makes it possible to connect the position detection assembly 12 to a data transmission cable intended for the control system. external control.
- the assembly 13 can be removably connected, for example by screwing, to a connector 16.
- the connector 16 makes it possible to connect a power supply cable to a connection circuit of the assembly 13, said connection circuit being adapted to be connected to the motor assembly 11.
- the power supply cable can transmit to the servomotor 4 the command from the external control system.
- the method of evaluating the seal can be implemented.
- the pressure inside the chamber 3 is reduced, using the pump 2, starting from an initial pressure, and up to a set pressure.
- the initial pressure prevailing in the servomotor is
- the pump 2 When the set pressure is reached, the pump 2 is stopped. Thanks to the non-return valve 6, which allows a passage of fluid only in one direction, from the chamber 3 to the pump 2, there is has no air passage in the chamber 3 via the conduit 5.
- the servomotor 4 If, after 15 minutes, the difference between the pressure inside the servomotor 4 and the set pressure is less than a predetermined value, or better, if the difference is zero, that is to say if no increase in pressure is visible, the servomotor 4 is considered sealed. Conversely, if the difference between the pressure inside the servomotor 4 and the set pressure is greater than a predetermined value, that is to say if we observe a rise in pressure inside the servomotor 4, the servomotor 4 is considered to be not waterproof.
- the method according to the invention involves a reduction of the pressure inside the chamber 3 of the booster 4, which has the advantage of making the seals of the booster 4 work in their direction of use,
- the process uses air, not water, which is more restrictive.
- the quick connector 9 is disconnected from the adapter 10, as shown in Figure 2, in which the elements identical to those of Figure 1 have the same references.
- the adapter 10 constitutes a male part removably connected to the quick connector 9.
- the adapter 10 is then unscrewed, and then the plug 8 is screwed back.
- the method according to the invention is thus particularly simple to implement. It involves a lightweight device, transportable to the foot of the booster and allows local control of the seal. The method also makes it possible to control any type of sealing defect, for example a crack. A faulty or incorrectly positioned seal will be immediately detected.
- the purpose of the method is to assure the user that once everything is installed and electrically connected to the site, it will be possible to check the tightness of the servomotor. It will be able to do the same in case of intervention on the site before putting back into service the servomotor.
- the method makes it possible to check the tightness of the entire servomotor enclosure, including the connected parts, all the seals, the motor part, the sensor and connector area, in one test on the site and without external power supply.
- the method also makes it possible to guarantee the tightness of the servomotor when it is put into service or after any other operation. of maintenance.
- the leak test performed on a servomotor to be operated in the event of a nuclear accident ensures that the internal electrical equipment will operate under optimal conditions.
- An easily accessible connector connects the test tool while the unit is mounted, electrically connected and verified on site.
- the test tool is independent, it can be equipped with a rechargeable battery allowing a test locally near the servomotor without mains power supply.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Motor Or Generator Frames (AREA)
- Measuring Fluid Pressure (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Dc Machiner (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI200931954T SI2350601T1 (sl) | 2008-11-28 | 2009-11-23 | Metoda za ocenjevanje tesnila ohišja za servomotor |
PL09795492T PL2350601T3 (pl) | 2008-11-28 | 2009-11-23 | Sposób oceniania szczelności obudowy serwomotoru |
CN200980147703.4A CN102227621B (zh) | 2008-11-28 | 2009-11-23 | 用于评定伺服电机壳体密封的方法 |
US13/055,172 US8402818B2 (en) | 2008-11-28 | 2009-11-23 | Method for assessing the seal of a servomotor housing |
ES09795492T ES2718815T3 (es) | 2008-11-28 | 2009-11-23 | Procedimiento de evaluación de la estanqueidad de un recinto de un servomotor |
EP09795492.9A EP2350601B1 (fr) | 2008-11-28 | 2009-11-23 | Procédé d'évaluation de l'étanchéité d'une enceinte d'un servomoteur |
LTEP09795492.9T LT2350601T (lt) | 2008-11-28 | 2009-11-23 | Servovariklio korpuso sandariklio įvertinimo metodas |
RU2011104008/28A RU2536761C2 (ru) | 2008-11-28 | 2009-11-23 | Способ оценки герметичности корпуса сервопривода |
HRP20190547TT HRP20190547T1 (hr) | 2008-11-28 | 2019-03-20 | Postupak provjeravanja nepropusnosti kućišta servomotora |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0858105 | 2008-11-28 | ||
FR0858105A FR2939196B1 (fr) | 2008-11-28 | 2008-11-28 | Procede d'evaluation de l'etancheite d'une enceinte d'un servomoteur |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010061109A2 true WO2010061109A2 (fr) | 2010-06-03 |
WO2010061109A3 WO2010061109A3 (fr) | 2010-07-22 |
Family
ID=40874760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2009/052256 WO2010061109A2 (fr) | 2008-11-28 | 2009-11-23 | Procédé d'évaluation de l'étanchéité d'une enceinte d'un servomoteur |
Country Status (13)
Country | Link |
---|---|
US (1) | US8402818B2 (fr) |
EP (1) | EP2350601B1 (fr) |
CN (1) | CN102227621B (fr) |
ES (1) | ES2718815T3 (fr) |
FR (1) | FR2939196B1 (fr) |
HR (1) | HRP20190547T1 (fr) |
HU (1) | HUE043525T2 (fr) |
LT (1) | LT2350601T (fr) |
PL (1) | PL2350601T3 (fr) |
RU (1) | RU2536761C2 (fr) |
SI (1) | SI2350601T1 (fr) |
TR (1) | TR201904682T4 (fr) |
WO (1) | WO2010061109A2 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2990236B1 (fr) * | 2012-05-07 | 2014-04-25 | Eurocopter France | Dispositif de controle par depressurisation de l'etancheite d'une boite de transmission d'un giravion |
TWI576858B (zh) * | 2015-10-16 | 2017-04-01 | 行政院原子能委員會核能研究所 | 核能級控制閥檢驗測試系統 |
DE102015015636A1 (de) * | 2015-12-02 | 2017-06-08 | Fresenius Medical Deutschland Gmbh | Verfahren zum Testen der Rigidität eines Disposables |
CN108331576B (zh) * | 2018-02-05 | 2020-08-11 | 王艳霞 | 一种单向流量监测装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3031884A (en) * | 1956-07-02 | 1962-05-01 | Bendix Corp | Leak test equipment |
FR1315389A (fr) * | 1956-07-02 | 1963-01-18 | Bendix Corp | Détecteur de fuites |
FR2761471A1 (fr) * | 1997-03-28 | 1998-10-02 | Abp Arizzoli Bernard Et Perre | Procede et ensemble de detection de fuites d'une installation a tube caloporteur place dans une gaine |
FR2849193A1 (fr) * | 2002-12-19 | 2004-06-25 | Euraltech Sa | Procede pour tester l'etancheite d'une piece creuse |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU842439A1 (ru) * | 1974-04-04 | 1981-06-30 | Britvin Lev N | Способ проверки герметичностиКлАпАННОгО узлА пОРшНЕВОгО HACOCA |
US4178208A (en) * | 1978-02-23 | 1979-12-11 | The United States Of America As Represented By The United States Department Of Energy | Self locking drive system for rotating plug of a nuclear reactor |
AT379672B (de) * | 1983-01-21 | 1986-02-10 | Schrack Elektronik Ag | Regelventil fuer heizkoerper |
SU1631339A1 (ru) * | 1988-08-17 | 1991-02-28 | Ленинградский институт инженеров железнодорожного транспорта им.акад.В.Н.Образцова | Способ проверки внутренних полостей двигателей внутреннего сгорани на герметичность |
DE3900866C2 (de) * | 1989-01-13 | 2001-11-22 | Heimeier Gmbh Metall Theodor | Anordnung zur Steuerung eines Heiz- oder Kühlmediums |
JPH0774370A (ja) * | 1993-09-06 | 1995-03-17 | Mitsuteru Kimura | ピエゾデバイス |
RU2224988C1 (ru) * | 2003-04-15 | 2004-02-27 | Всероссийский научно-исследовательский технологический институт ремонта и эксплуатации машинно-тракторного парка | Устройство для определения технического состояния цилиндропоршневой группы двигателя внутреннего сгорания |
CN2783384Y (zh) * | 2005-04-27 | 2006-05-24 | 袁卫华 | 一体化智能伺服电机 |
FR2898393B1 (fr) * | 2006-03-08 | 2009-02-20 | Bernard Sa L | Antidevireur a ressort. |
-
2008
- 2008-11-28 FR FR0858105A patent/FR2939196B1/fr active Active
-
2009
- 2009-11-23 CN CN200980147703.4A patent/CN102227621B/zh active Active
- 2009-11-23 PL PL09795492T patent/PL2350601T3/pl unknown
- 2009-11-23 EP EP09795492.9A patent/EP2350601B1/fr active Active
- 2009-11-23 SI SI200931954T patent/SI2350601T1/sl unknown
- 2009-11-23 TR TR2019/04682T patent/TR201904682T4/tr unknown
- 2009-11-23 US US13/055,172 patent/US8402818B2/en active Active
- 2009-11-23 ES ES09795492T patent/ES2718815T3/es active Active
- 2009-11-23 LT LTEP09795492.9T patent/LT2350601T/lt unknown
- 2009-11-23 WO PCT/FR2009/052256 patent/WO2010061109A2/fr active Application Filing
- 2009-11-23 RU RU2011104008/28A patent/RU2536761C2/ru active IP Right Revival
- 2009-11-23 HU HUE09795492A patent/HUE043525T2/hu unknown
-
2019
- 2019-03-20 HR HRP20190547TT patent/HRP20190547T1/hr unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3031884A (en) * | 1956-07-02 | 1962-05-01 | Bendix Corp | Leak test equipment |
FR1315389A (fr) * | 1956-07-02 | 1963-01-18 | Bendix Corp | Détecteur de fuites |
FR2761471A1 (fr) * | 1997-03-28 | 1998-10-02 | Abp Arizzoli Bernard Et Perre | Procede et ensemble de detection de fuites d'une installation a tube caloporteur place dans une gaine |
FR2849193A1 (fr) * | 2002-12-19 | 2004-06-25 | Euraltech Sa | Procede pour tester l'etancheite d'une piece creuse |
Also Published As
Publication number | Publication date |
---|---|
FR2939196A1 (fr) | 2010-06-04 |
RU2011104008A (ru) | 2012-08-20 |
EP2350601B1 (fr) | 2019-01-09 |
TR201904682T4 (tr) | 2019-05-21 |
US8402818B2 (en) | 2013-03-26 |
WO2010061109A3 (fr) | 2010-07-22 |
CN102227621A (zh) | 2011-10-26 |
LT2350601T (lt) | 2019-06-25 |
CN102227621B (zh) | 2015-08-12 |
PL2350601T3 (pl) | 2019-08-30 |
EP2350601A2 (fr) | 2011-08-03 |
ES2718815T3 (es) | 2019-07-04 |
HUE043525T2 (hu) | 2019-08-28 |
HRP20190547T1 (hr) | 2019-07-12 |
US20110120234A1 (en) | 2011-05-26 |
RU2536761C2 (ru) | 2014-12-27 |
SI2350601T1 (sl) | 2019-07-31 |
FR2939196B1 (fr) | 2010-12-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2350601B1 (fr) | Procédé d'évaluation de l'étanchéité d'une enceinte d'un servomoteur | |
EP2698574B1 (fr) | Connecteur pour tuyaux de raccordement de système de climatisation et appareil de climatisation associé | |
EP0038492A1 (fr) | Dispositif de contrôle de fuite pour poste blindé à haute tension | |
FR2974883A1 (fr) | Vanne montee sur un reservoir contenant un gaz a haute pression | |
EP2497174A2 (fr) | Systeme de transmission de puissance electrique a travers une paroi | |
EP3394472B1 (fr) | Conduit electrique et de passage de fluide pour controler une etancheite dans un frein de vehicule | |
FR3061771B1 (fr) | Dispositif et procede de test d'etancheite | |
EP1153277B1 (fr) | Emballage a controle continu d'etancheite | |
EP1535037A1 (fr) | Procede de controle de l'etancheite d'un reservoir d'un aeronef | |
CA2929934A1 (fr) | Dispositif de confinement des fuites de gaz se produisant au niveau d'un disque de rupture d'un compartiment d'un poste electrique ou d'un disjoncteur a haute tension a isolation gazeuse | |
JP4155959B2 (ja) | ガス圧検圧用接続具 | |
FR2777655A1 (fr) | Dispositif de mesure de l'etancheite d'un conduit | |
FR2910888A1 (fr) | Dispositif de recuperation de fluide. | |
JP2005083910A (ja) | 漏洩点検治具 | |
FR3107034A1 (fr) | Dispositif d’obturation d’une entrée d’air d’aéronef destiné à participer au contrôle de l’étanchéité d’au moins un réservoir de l’aéronef. | |
FR3050176B1 (fr) | Nacelle pour ensemble propulsif | |
FR2775887A1 (fr) | Procede de commande automatique d'une installation d'aspiration centralisee, en particulier d'une installation de nettoyage centralise par le vide, et installation permettant la mise en oeuvre de ce procede | |
FR2849117A1 (fr) | Procede pour diagnostiquer les pannes d'un systeme d'injection de carburant et outil pour sa mise en oeuvre | |
EP2979341A1 (fr) | Procede de localisation de defaut electrique dans un systeme modulaire de distribution electrique sous-marin | |
EP2431724A1 (fr) | Organe de châssis d'un véhicule automobile équipé d'un moyen d'étanchéité entourant une ouverture | |
FR3016808A1 (fr) | Module de captage d'un gaz dissous dans un liquide et dispositif de mesure | |
FR3118168A1 (fr) | Dispositif de test d’étanchéité d’une manche de télémanipulateur et procédé de test d’étanchéité mettant en œuvre un tel dispositif en cellule blindée | |
CA3033531A1 (fr) | Capteur integre et orifice de service d'equipement cvca ou de systeme cvca | |
EP0306467B1 (fr) | Dispositif de sectionnement automatique pour réseau de transport de fluide sous double enveloppe | |
FR3002612A1 (fr) | Systeme de raccordement etanche d'un tuyau a double peau, et circuit hydraulique muni dudit systeme |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980147703.4 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09795492 Country of ref document: EP Kind code of ref document: A2 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009795492 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13055172 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011104008 Country of ref document: RU |
|
NENP | Non-entry into the national phase |
Ref country code: DE |