A tri-axial centrifuge apparatus for testing of petro-physical properties of a test sample includes a tri-axial sample holder located within an inner bore of a cell body. An axial pressure fluid supply line delivers an axial pressure fluid to apply an axial pressure on the test sample. A confining pressure fluid supply line delivers a confining pressure fluid to apply a biaxial confining pressure on the test sample. A test fluid holder contains test fluid and is static relative to the cell body. The axial pressure fluid, the confining pressure fluid, and the test fluid are contained in separate flow systems. A centrifuge has a window that is located on a portion of a path of the tri-axial sample holder. The tri-axial sample holder is loaded in the centrifuge and spinning with the centrifuge. An x-ray instrument is static and is aligned with the window of the centrifuge.

A tri-axial centrifuge apparatus for testing of petro-physical properties of a test sample includes a tri-axial sample holder located within an inner bore of a cell body. An axial pressure fluid supply line delivers an axial pressure fluid to apply an axial pressure on the test sample. A confining pressure fluid supply line delivers a confining pressure fluid to apply a biaxial confining pressure on the test sample. A test fluid holder contains test fluid and is static relative to the cell body. The axial pressure fluid, the confining pressure fluid, and the test fluid are contained in separate flow systems. A centrifuge has a window that is located on a portion of a path of the tri-axial sample holder. The tri-axial sample holder is loaded in the centrifuge and spinning with the centrifuge. An x-ray instrument is static and is aligned with the window of the centrifuge.

A centrifuge device, including a base, a rotation platform, and a lock module, is provided. The rotation platform is disposed on the base and adapted to support a rotor of a centrifugal bowl. The rotor is rotatably connected to a stator of the centrifugal bowl. The lock module includes a main body, a lock assembly, and a positioning component. The main body is disposed on the base. The lock assembly is movably connected to the main body and located above the rotation platform. The lock assembly is adapted to be operated to a first state to lock the stator and a second state to be separated from the stator. The positioning component is movably connected to the main body. The positioning component is adapted to move to a first position to position the lock assembly to the first state and a second position to release the lock assembly.

A seal assembly for providing a seal between a first zone and a second zone includes a rotatable sealing member including a first sealing ring, a stationary sealing member including a second sealing ring and a device for bringing the first and second sealing rings into engagement with each other. The first and second sealing rings are arranged so that a double contact seal having at least one chamber arranged at a radial plane is formed upon engagement between the first and second sealing rings. The seal assembly further includes at least one fluid connection to the chamber. A centrifugal separator includes such a seal assembly.

A seal assembly for providing a seal between a first zone and a second zone includes a rotatable sealing member including a first sealing ring, a stationary sealing member including a second sealing ring and a device for bringing the first and second sealing rings into engagement with each other. The first and second sealing rings are arranged so that a double contact seal having at least one chamber arranged at a radial plane is formed upon engagement between the first and second sealing rings. The seal assembly further includes at least one fluid connection to the chamber. A centrifugal separator includes such a seal assembly.

A centrifugal separator bowl includes a rotor casing enclosing a separation space in which a stack of frustoconical separation discs is arranged to rotate around a vertical axis of rotation, wherein the separation discs are arranged with the imaginary apex pointing to the axially lower end of the rotor casing; a feed inlet at the axially lower end for receiving the fluid mixture to be separated; a distributor for distributing the fluid mixture from the inlet to the separation space, the distributor being arranged for guiding the fluid mixture to be separated continuously from an axially lower position at the inlet to an axially upper position in the separation space. The separator bowl further includes a light phase outlet for discharge of a separated phase of a first density and a heavy phase outlet for discharge of a separated phase of a second density higher than the first density, the heavy phase outlet being arranged at the axially upper end of the rotor casing; at least one outlet conduit for transporting separated phase of the second density from the separation space, the conduit extending from a radially outer position of the separation space to the heavy phase outlet; the conduit having a conduit inlet arranged at the radially outer position and a conduit outlet at a radially inner position.

The invention in at least one embodiment includes a system for treating water having an intake module, a vortex module, a disk-pack module, and a motor module. In at least one embodiment, a water system includes vortex housing having an interior wall defining a vortex chamber in fluid communication with the expansion chamber of said disk-pack turbine and inlets into the vortex chamber, and the vortex chamber having an upper section with a bowl or modified concave hyperbolic shape into which fluid is received from said inlets and a lower section with a conical or funnel shape with a steep vertical angle of change that opens into expansion chamber. In at least one further embodiment, the disk-pack module includes a disk-pack turbine having a plurality of disks having at least one waveform present on at least one of the disks.

The invention in at least one embodiment includes a system for treating water having an intake module, a vortex module, a disk-pack module, and a motor module. In at least one embodiment, a water system includes vortex housing having an interior wall defining a vortex chamber in fluid communication with the expansion chamber of said disk-pack turbine and inlets into the vortex chamber, and the vortex chamber having an upper section with a bowl or modified concave hyperbolic shape into which fluid is received from said inlets and a lower section with a conical or funnel shape with a steep vertical angle of change that opens into expansion chamber. In at least one further embodiment, the disk-pack module includes a disk-pack turbine having a plurality of disks having at least one waveform present on at least one of the disks.

A centrifugal separator bowl includes a rotor casing enclosing a separation space in which a stack of frustoconical separation discs is arranged to rotate around a vertical axis of rotation, wherein the separation discs are arranged with the imaginary apex pointing to the axially lower end of the rotor casing; a feed inlet at the axially lower end for receiving the fluid mixture to be separated; a distributor for distributing the fluid mixture from the inlet to the separation space, the distributor being arranged for guiding the fluid mixture to be separated continuously from an axially lower position at the inlet to an axially upper position in the separation space. The separator bowl further includes a light phase outlet for discharge of a separated phase of a first density and a heavy phase outlet for discharge of a separated phase of a second density higher than the first density, the heavy phase outlet being arranged at the axially upper end of the rotor casing; at least one outlet conduit for transporting separated phase of the second density from the separation space, the conduit extending from a radially outer position of the separation space to the heavy phase outlet; the conduit having a conduit inlet arranged at the radially outer position and a conduit outlet at a radially inner position.

A centrifugal separator for separation of a cell culture mixture includes a stationary frame, a rotatable assembly and a drive unit for rotating the rotatable assembly relative the frame around a vertical axis of rotation. The rotatable assembly includes a rotor casing enclosing a separation space in which a stack of separation discs is arranged to rotate around an axis of rotation. The rotor casing includes a mechanically hermetically sealed inlet and first and second mechanically hermetically sealed liquid outlets. The second mechanically hermetically sealed outlet is arranged at an axial end of the rotor casing opposite and arranged so that a separated cell phase is discharged at the rotational axis. The rotatable assembly includes an exchangeable separation insert and a rotatable member.