Abrégé

The invention relates to a device (10) for containing a gas leak at an interface between an intermediate part, such as an insulating cone (11) or a sealing gasket, and a first circular flange (21), the intermediate part being sandwiched between the first circular flange (21) and a second circular flange (12). According to the invention, such a device (10) comprises: ? means for encircling a substantial portion of the edge of the intermediate part, comprising an open annular band (35) having a first and a second end and a fastening (23) connecting the first and second ends; ? a chamber (15) for collecting leaking gas which is rigidly connected to the encircling means, having an internal housing (22) capable of at least partially receiving the fastening (23); ? a sealing collar (16) at least partially covering, all the way around the flanges (12, 21), the edges of the flanges and the open annular band, and surrounding at least the outer bottom portion of the collector.

Classes IPC  ?

• H02B 13/045 - Détails de l'enveloppe, p. ex. étanchéité au gaz
• H02B 13/065 - Moyens pour détecter ou réagir à un défaut mécanique ou électrique
• H02G 5/06 - Installations fermées, p. ex. en coffrets métalliques

Abrégé

The invention relates to a device (10) for containing a gas leak at an interface between an intermediate part, such as an insulating cone (11) or a sealing gasket, and a first circular flange (21), the intermediate part being sandwiched between the first circular flange (21) and a second circular flange (12). According to the invention, such a device (10) comprises: • means for encircling a substantial portion of the edge of the intermediate part, comprising an open annular band (35) having a first and a second end and a fastening (23) connecting the first and second ends; • a chamber (15) for collecting leaking gas which is rigidly connected to the encircling means, having an internal housing (22) capable of at least partially receiving the fastening (23); • a sealing collar (16) at least partially covering, all the way around the flanges (12, 21), the edges of the flanges and the open annular band, and surrounding at least the outer bottom portion of the collector.

Classes IPC  ?

• H02B 13/045 - Détails de l'enveloppe, p. ex. étanchéité au gaz
• H02B 13/065 - Moyens pour détecter ou réagir à un défaut mécanique ou électrique
• H02G 5/06 - Installations fermées, p. ex. en coffrets métalliques

Abrégé

The invention relates to a device for joining, and discharging the leakage currents from, two shroud portions for containing a pressurised gas, comprising a substantially U-shaped electrical connector for forming a shunt between a first and a second clamp. According to the invention, the inner faces of the flanges of the electrical connector each have a groove configured to house a sealing element for bearing on the first clamp or on the second clamp and the device comprises a first and a second sealing cap comprising a housing suitable for receiving the end of a screw for joining the clamps which are designed to be mounted so as to form a seal bearing against the faces of the side flanges of the electrical connector.

Classes IPC  ?

• H02G 5/06 - Installations fermées, p. ex. en coffrets métalliques

Abrégé

The invention relates to a device for joining, and discharging the leakage currents from, two shroud portions for containing a pressurised gas, comprising a substantially U-shaped electrical connector for forming a shunt between a first and a second clamp. According to the invention, the inner faces of the flanges of the electrical connector each have a groove configured to house a sealing element for bearing on the first clamp or on the second clamp and the device comprises a first and a second sealing cap comprising a housing suitable for receiving the end of a screw for joining the clamps which are designed to be mounted so as to form a seal bearing against the faces of the side flanges of the electrical connector.

Classes IPC  ?

• H02G 5/06 - Installations fermées, p. ex. en coffrets métalliques

Abrégé

The invention relates to a device for containing a gas leak in a region with a change in diameter in a circular cross-section pipe of a gas insulation switchgear or a gas insulation high voltage circuit-breaker. According to the invention, such a device comprises : a first diameter-transition ring; a second diameter-transition ring having an outer diameter substantially identical to that of the first ring; cowling means for at least partially surrounding said region with a change in outer diameter, configured to be sealingly mounted on the outer annular profile of the first transition ring and on the outer annular profile of the second transition ring; and means for sealing the mounting regions.

Classes IPC  ?

• H01H 33/57 - Récupération de liquides ou de gaz
• H02B 13/025 - Dispositions pour la sécurité, p. ex. en cas de surpression ou d'incendie causés par un défaut électrique
• H02B 13/045 - Détails de l'enveloppe, p. ex. étanchéité au gaz

Abrégé

The invention relates to a device for containing a gas leak in a region with a change in diameter in a circular cross-section pipe of a gas insulation switchgear or a gas insulation high voltage circuit-breaker. According to the invention, such a device comprises : a first diameter-transition ring; a second diameter-transition ring having an outer diameter substantially identical to that of the first ring; cowling means for at least partially surrounding said region with a change in outer diameter, configured to be sealingly mounted on the outer annular profile of the first transition ring and on the outer annular profile of the second transition ring; and means for sealing the mounting regions.

Classes IPC  ?

• H01H 33/57 - Récupération de liquides ou de gaz
• H02B 13/025 - Dispositions pour la sécurité, p. ex. en cas de surpression ou d'incendie causés par un défaut électrique
• H02B 13/045 - Détails de l'enveloppe, p. ex. étanchéité au gaz

Abrégé

The invention relates to a method for locating, in an industrial scene, a gas leak and the leakage point of same and a corresponding leak locating system. According to the invention, such a locating method comprises the following steps: -identifying (410) a direction in which the level of ultrasound detected by an ultrasound detection device is greater than a predetermined threshold, by scanning from a fixed position of at least one part of said scene using said ultrasound detection device; - capturing (432) a first and a second infrared image of said scene in said direction, viewed from said position, said captured images being separated by more than 2 seconds; - obtaining (434) an image of the infrared signal variations, by subtracting said first image from said second image, or vice versa; - obtaining (438) a digital image of said scene in said direction viewed from said position; - superposing (440) said image of the infrared signal variations with said digital image; - identifying (410) an area of gas movement corresponding to said leak in said image of the infrared signal variations.

Classes IPC  ?

• G01M 3/24 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des vibrations infrasonores, sonores ou ultrasonores
• G01M 3/38 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation de la lumière

Abrégé

A device for containing gas leaks occurring at a rupture disc of a compartment of a gas insulated electric substation or high-voltage circuit breaker. The invention concerns a device for containing gas leaks occurring at a rupture member, such as a disc (21) or a membrane, of a compartment of a gas insulated electric substation or a gas insulated high-voltage circuit breaker. According to the invention, such a containment device (10) comprises a sealed enclosure (101) arranged so as to be able to completely enclose the outer surface of said rupture member, said enclosure having a sealed closing portion (105) intended to be secured around a substantially tubular element (14) of said compartment and comprising means for rupturing under pressure that are capable of breaking under a gas pressure lower than the rupture pressure of said rupture member.

Classes IPC  ?

• H02B 13/045 - Détails de l'enveloppe, p. ex. étanchéité au gaz
• H02B 13/025 - Dispositions pour la sécurité, p. ex. en cas de surpression ou d'incendie causés par un défaut électrique

Abrégé

A device for containing gas leaks occurring at a rupture disc of a compartment of a gas insulated electric substation or high-voltage circuit breaker. The invention concerns a device for containing gas leaks occurring at a rupture member, such as a disc (21) or a membrane, of a compartment of a gas insulated electric substation or a gas insulated high-voltage circuit breaker. According to the invention, such a containment device (10) comprises a sealed enclosure (101) arranged so as to be able to completely enclose the outer surface of said rupture member, said enclosure having a sealed closing portion (105) intended to be secured around a substantially tubular element (14) of said compartment and comprising means for rupturing under pressure that are capable of breaking under a gas pressure lower than the rupture pressure of said rupture member.

Classes IPC  ?

• H02B 13/045 - Détails de l'enveloppe, p. ex. étanchéité au gaz
• H02B 13/025 - Dispositions pour la sécurité, p. ex. en cas de surpression ou d'incendie causés par un défaut électrique