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Pipe sealant material
PATENTS
PATENTS Method for producing seals on electrochemical reactor components Applicant: Areva Stockage d’Energie, France A method has been developed for producing seals on faces of components that are intended to be stacked in order to form an electrochemical reactor. Each component takes the form of a plate and has a first face and an opposing second face. The first and second faces are designed to receive seals. The method described involves shaping the first seals on the first faces of the components – the seals being at least partially polymerised. The second seals, which are deposited on the second face of the components, are shaped by compressing a stack that is formed from the components alternating with moulding plates. Each moulding plate has a bearing face pressed against the first face of a component and contains a groove that has been created to receive – without deforming it – the first seal (previously formed on the first face of the component). It also has a moulding face pressed against the second face of another component and a moulding surface for shaping the second seal, deposited on the second face of the second component, as a result of the stack being compressed. The second seals are also partially polymerised. Patent number: WO/2016/113408 Inventors: S. Trunde, N.J.P. Clergue, P.-E. Girardot and C. Quinteri Publication date: 21 July 2016
Pipe sealant material Applicant: Henkel IP & Holding GmbH, Germany This patent describes the use of a sealing material – a multifilament or spun yarn, coated with a joint sealing composition – to seal a joint in a pipe system in which a fluid is flowing. This fluid contains corrosion inhibitors, such as diammonium dimolybdate or benzotriazole; and/or sludge removers; and/or an alcohol, such as propane diol or ethylene glycol; and/or hydrocarbons such as diesel (including biodiesel), fuel oil or hydraulic oil; and/or steam at a temperature of at least 180°C and pressure of at least 10 bar (1000 kPa). This fluid also passes through the sealed joint. According to the inventors, the sealing material described is capable of maintaining a sealed joint despite 12
Sealing Technology
exposure to the materials contained in, or comprising, the fluid. Patent number: WO/2016/113077 Inventors: A. Doyle and E. Ledwidge Publication date: 21 July 2016
Extreme service plug valve Applicant: GE Oil & Gas Pressure Control Lp, USA A valve assembly for managing the flow of fluid in hydrocarbon development and production operations forms the subject of this patent. It includes a valve body that has an internal body cavity and a body bore intersecting the body cavity. A valve plug is located within the body cavity and is rotatable between an open and closed position. A sleeve is located between the valve plug and valve body, and is fixed to the latter, and remains static relative to the valve body as the valve plug rotates. A seal groove is located in a sidewall surface of the sleeve and circumscribes one of the sleeve openings. Also incorporated into this design is a seal assembly, which has a seal ring that is U-shaped in cross section, with an inner leg that engages the seal groove and an outer leg that extends out of the seal groove and engages the valve body or plug. Patent number: WO/2016/115076 Inventors: R.C. Hunter, R.S. McKee, M. Garibay and C.E. Yates Publication date: 21 July 2016
respect to each other, and the sliding engagement between the sealing ring and the sealed piece in rotating engagement. This means that abrasion between the sealing ring and the sealed piece is greatly reduced and is compensated, thus prolonging the service life of the sealing ring and the maintenance-free period of the device. This design is especially suited to dynamic sealing of large components, says the inventor. Patent number: WO/2016/112614 Inventors: Y. Wang Publication date: 21 July 2016
Sealing arrangement for a marine vessel’s underwater mountable thruster Applicant: Wärtsilä Netherlands Bv, The Netherlands This invention relates to a sealing arrangement for an underwater mountable thruster used on a marine vessel. In particular, it covers the sealing arrangement for the case when the thruster (62) is mounted in a well box (60) attached to the vessel’s hull. One objective is to reduce the need for a diver when dismounting and mounting the thruster on a vessel that is afloat. Another aim is to create a sealing arrangement that is not sensitive to slight misalignment during the installation phase. The well box has an axis (A); bottom flange (64); top flange (68); annular wall (66), between
Floating seal with abrasionresistance properties, and absorption and compensation functions Applicant: Y. Wang, China This invention concerns a floating seal that possesses abrasion-resistance properties, and absorption and compensation functions. It comprises a mounting base, a sealing-ring base and a sealing ring. The mounting base is disposed at the periphery of the sealing-ring base, whilst the sealing ring is disposed inside the sealing-ring base, and a sealing-ring groove that has an opening which faces the axis and along the radial direction, formed at the inner edge of the sealing-ring base. The sealing ring is disposed inside the sealing-ring groove. The radius of the inner edge of the sealing ring is smaller than that of the inner edge of the sealing-ring base. The sealing ring is formed from a set of what is referred to as “stacking pieces”. These are stacked sequentially in a closed ring structure. These pieces are able to rotate about the ring axis of the sealing-ring groove such that the inner annular edge of the sealing ring and a sealed piece can rotate with
This patent – WO/2016/113000 – describes the sealing arrangement for the well box (60) and thruster (62) used on a marine vessel. One objective of this design is to create a sealing arrangement that is not sensitive to slight misalignment during the installation phase.
July 2017
PATENTS Method for producing seals on electrochemical reactor components Applicant: Areva Stockage d’Energie, France A method has been developed for producing seals on faces of components that are intended to be stacked in order to form an electrochemical reactor. Each component takes the form of a plate and has a first face and an opposing second face. The first and second faces are designed to receive seals. The method described involves shaping the first seals on the first faces of the components – the seals being at least partially polymerised. The second seals, which are deposited on the second face of the components, are shaped by compressing a stack that is formed from the components alternating with moulding plates. Each moulding plate has a bearing face pressed against the first face of a component and contains a groove that has been created to receive – without deforming it – the first seal (previously formed on the first face of the component). It also has a moulding face pressed against the second face of another component and a moulding surface for shaping the second seal, deposited on the second face of the second component, as a result of the stack being compressed. The second seals are also partially polymerised. Patent number: WO/2016/113408 Inventors: S. Trunde, N.J.P. Clergue, P.-E. Girardot and C. Quinteri Publication date: 21 July 2016
Pipe sealant material Applicant: Henkel IP & Holding GmbH, Germany This patent describes the use of a sealing material – a multifilament or spun yarn, coated with a joint sealing composition – to seal a joint in a pipe system in which a fluid is flowing. This fluid contains corrosion inhibitors, such as diammonium dimolybdate or benzotriazole; and/or sludge removers; and/or an alcohol, such as propane diol or ethylene glycol; and/or hydrocarbons such as diesel (including biodiesel), fuel oil or hydraulic oil; and/or steam at a temperature of at least 180°C and pressure of at least 10 bar (1000 kPa). This fluid also passes through the sealed joint. According to the inventors, the sealing material described is capable of maintaining a sealed joint despite 12
Sealing Technology
exposure to the materials contained in, or comprising, the fluid. Patent number: WO/2016/113077 Inventors: A. Doyle and E. Ledwidge Publication date: 21 July 2016
Extreme service plug valve Applicant: GE Oil & Gas Pressure Control Lp, USA A valve assembly for managing the flow of fluid in hydrocarbon development and production operations forms the subject of this patent. It includes a valve body that has an internal body cavity and a body bore intersecting the body cavity. A valve plug is located within the body cavity and is rotatable between an open and closed position. A sleeve is located between the valve plug and valve body, and is fixed to the latter, and remains static relative to the valve body as the valve plug rotates. A seal groove is located in a sidewall surface of the sleeve and circumscribes one of the sleeve openings. Also incorporated into this design is a seal assembly, which has a seal ring that is U-shaped in cross section, with an inner leg that engages the seal groove and an outer leg that extends out of the seal groove and engages the valve body or plug. Patent number: WO/2016/115076 Inventors: R.C. Hunter, R.S. McKee, M. Garibay and C.E. Yates Publication date: 21 July 2016
respect to each other, and the sliding engagement between the sealing ring and the sealed piece in rotating engagement. This means that abrasion between the sealing ring and the sealed piece is greatly reduced and is compensated, thus prolonging the service life of the sealing ring and the maintenance-free period of the device. This design is especially suited to dynamic sealing of large components, says the inventor. Patent number: WO/2016/112614 Inventors: Y. Wang Publication date: 21 July 2016
Sealing arrangement for a marine vessel’s underwater mountable thruster Applicant: Wärtsilä Netherlands Bv, The Netherlands This invention relates to a sealing arrangement for an underwater mountable thruster used on a marine vessel. In particular, it covers the sealing arrangement for the case when the thruster (62) is mounted in a well box (60) attached to the vessel’s hull. One objective is to reduce the need for a diver when dismounting and mounting the thruster on a vessel that is afloat. Another aim is to create a sealing arrangement that is not sensitive to slight misalignment during the installation phase. The well box has an axis (A); bottom flange (64); top flange (68); annular wall (66), between
Floating seal with abrasionresistance properties, and absorption and compensation functions Applicant: Y. Wang, China This invention concerns a floating seal that possesses abrasion-resistance properties, and absorption and compensation functions. It comprises a mounting base, a sealing-ring base and a sealing ring. The mounting base is disposed at the periphery of the sealing-ring base, whilst the sealing ring is disposed inside the sealing-ring base, and a sealing-ring groove that has an opening which faces the axis and along the radial direction, formed at the inner edge of the sealing-ring base. The sealing ring is disposed inside the sealing-ring groove. The radius of the inner edge of the sealing ring is smaller than that of the inner edge of the sealing-ring base. The sealing ring is formed from a set of what is referred to as “stacking pieces”. These are stacked sequentially in a closed ring structure. These pieces are able to rotate about the ring axis of the sealing-ring groove such that the inner annular edge of the sealing ring and a sealed piece can rotate with
This patent – WO/2016/113000 – describes the sealing arrangement for the well box (60) and thruster (62) used on a marine vessel. One objective of this design is to create a sealing arrangement that is not sensitive to slight misalignment during the installation phase.
July 2017