Alfa Laval Attorneys

A heat exchanger plate for a gasketed plate heat exchanger (GPHE), comprising:a base plate having a first surface and a second surface, wherein the first surface is configured to be in contact with a first fluid, and the second surface is configured to be in contact with a second fluid for the purpose of heat transfer between the first and second fluids,the base plate having a heat transfer area and an edge area, which extends around and outside the heat transfer area, wherein the heat transfer area and the edge area of the base plate are separated by a gasket path,characterised in that the base plate comprises an integrated thin-film temperature sensor configured to measure a temperature in the heat transfer area.

The present invention provides a centrifugal separator (1) for cleaning gas containing contaminants. The centrifugal separator (1) comprises a stationary casing (2), enclosing a separation space (3) through which a gas flow is permitted; a gas inlet chamber (20) for receiving the supply of the gas to be cleaned and in fluid communication with said separation space (3); a rotating member (7) comprising a stack (9) of frustoconical separation discs (50) that is arranged to rotate around an axis (X) of rotation in said separation space (3); a gas outlet (28) arranged through the stationary casing (2) and configured to permit discharge of cleaned gas out from the stationary casing (2); a drainage outlet (29) arranged in the stationary casing (2) and configured to permit discharge of liquid contaminants that have been separated from the gas out from the stationary casing and a drive member (22) for rotating the rotating member (7). The separation discs (5) of said stack (9) form an angle (α) with said axis (X) of rotation that is below 42° and the axial height (H) of said stack (9) is above 90 mm.

A thin-film temperature sensor arrangement comprising a metal substrate, a thin-film adhesion and electrical insulation layer on the metal substrate, and a thin-film temperature sensor on the thin-film adhesion and insulation layer, wherein the thin-film adhesion and insulation layer comprises an inorganic oxide, an inorganic nitride or an inorganic oxynitride.

The disclosure relates to a spiral plate heat exchanger (1) for exchanging heat between media, the heat exchanger (1) comprises a spiral body (2) comprising at least one spiral sheet (10a,10b) wound to form at least a spiral-shaped first flow channel (14a) for a first medium and a spiral-shaped second flow channel (14b) for a second medium; a substantially cylindrical shell (4) encircling the spiral body (2); first and second elongated headers (5a, 5b) connected to an outer surface of the cylindrical shell (4), wherein the first elongated header (5a) is fluidly connected to the first flow channel (14a) and the second elongated header (5b) is fluidly connected to the second flow channel (14b); and first connecting elements (8a, 9a) communicating with the first flow channel (14a) through the first elongated header (5a) and second connecting elements (8b, 9b) communicating with the second flow channel (14b) through the second header (5b). The spiral plate heat exchanger (1) further comprises at least one volume reducing element (17) arranged in at least one of the first and second elongated headers (5a, 5b). The disclosure also relates to an elongated header (5a, 5b) for such a spiral plate heat exchanger (1).

A filtering component for a filtering unit with backwashing, the filtering component comprising an inner edge (24), an outer edge (26) and a filtering medium (22), and circumferentially distributed ribs (30) extending between the inner edge (24) and the outer edge (26) and holding the filtering medium (22), wherein at least one of the ribs (32) comprises a projection (36) towards at least one first rib (40) that is adjacent thereto, and wherein the at least one first rib (40) comprises a first rectilinear portion (42), a connection portion (44) and a second rectilinear portion (46) in this order, the second rectilinear portion (46) being closer to the projection (36) than the first rectilinear portion (42), wherein the connection portion (44) is bent so that the second rectilinear portion (46) is shifted away from the projection (36) with respect to an imaginary straight line (42a) extending the first rectilinear portion (42).

The disclosure concerns a wind propulsion system (4) for a marine vessel (2). The wind propulsion system comprises a wingsail (6), a support structure (8), and an actuator arrangement (20). The support structure (8) includes a base (10). The actuator arrangement (20) is configured to move at least a portion of the wingsail (6) in relation to the base (10). A sensor arrangement (26) comprises a first and a second set of sensors (28, 30), the first set being attached to the support structure (8) and the second set being attached to the support structure (8) at a vertical distance (D) from the first set. The control arrangement (32) is configured to: - receive data from the first and second sets of sensors, and - control the actuator arrangement (20) based on the data received from the first and second sets of sensors.

A plate heat exchanger comprises a package of heat exchanger plates, each with a peripheral portion and several aligned through flow ports. The plates are permanently joined to form flow passages for two heat exchange media. First inlet and outlet channels communicate with every other flow passage, while second inlet and outlet channels communicate with the remaining passages. First guiding ribs in the port portions distribute the first heat exchange medium, and second guiding ribs do the same for the second medium. Fins in the heat exchange portion create parallel guide channels for both media. A mixing zone is configured between the fins and guiding ribs to equalize volume flow before entering the guide channels. Outermost guiding ribs prevent bypass flow between the plates and fins, ensuring efficient heat exchange.

The present invention provides a centrifugal separator (1) for separating a liquid mixture into at least one separated liquid phase. The separator is comprising a reusable portion (2) arranged for use in multiple separation processes and a single use portion (10) arranged for being replaced between separation processes. The single use portion (10) comprises a separator insert (11) in which the separation takes place, said insert (11) forming a preassembled interchangeable unit, and at least one tube (12) arranged for transporting liquid mixture to said separator insert (11) and/or at least one separated phase from said separator insert (11). The reusable portion (2) comprises a stationary frame (3) in which said separator insert is mounted and a drive unit (4) arranged for rotating said separator insert (11) in relation to the stationary frame (3) around an axis of rotation (X). The centrifugal separator (1) further comprises at least one sensor (20) for measuring a physical property of the liquid feed mixture or a separated liquid phase. The at least one sensor (20, 30) comprises a sensing element (21, 31) that is responsive for said physical property, and a processing unit (22, 32) configured for converting the sensed physical property to an electrical variable. At least said processing unit (22, 32) is arranged in the reusable portion (2) of the centrifugal separator (1).

The present invention relates to a filling system for a cooling tower. The filling system comprising a filling material being permeable to air and water. The filling material being electrically conductive. The filling system further comprising a first electrical connector and a second electrical connector that are operationally connected to the filling material and spaced apart in relation to each other. The filling system further comprising an electrical power source operationally connected to the first electrical connector and the second electrical connector and configured to supply an electric current to the filling material via the first electrical connector and the second electrical connector for reducing growth of microorganisms in the cooling tower.

The present invention provides an oil drain assembly (1) for draining lubricating oil from a centrifugal separator (2), comprising a centrifugal separator (2) comprising a drive motor (14); wherein said drive motor (14) comprises a drain hole (41) for lubricating oil; a container (20) for storing drained lubricating oil comprising an oil inlet (21); and a connecting portion (25) comprising a first end (26) adapted for connection to the drain hole (41) of said drive motor (14); a second end (27) adapted for being directly connected to the oil inlet (21) of the container (20) and a valve member (28) arranged between the first (26) and second (27) end (27) for regulating the flow of lubricating oil within said connecting portion (25). The connecting portion (25) is arranged for being permanently connected to said drain hole (41) and directly connected to said container (20).