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公开(公告)号：US10514066B2
公开(公告)日：2019-12-24
申请号：US15563380
申请日：2016-03-21
发明人： Kasper Höglund , Peter Thorwid
摘要： A centrifugal separator includes a frame and a drive member configured to rotate a rotating part in relation to the frame around an axis of rotation. The rotating part includes a centrifuge rotor enclosing a separation space. The centrifuge rotor is adjoined to a hollow spindle supported by the frame by at least one bearing device. The interior of the hollow spindle is in thermal contact with the at least one bearing device and further includes a thermal transfer medium inlet for supplying a thermal transfer medium to said interior and a thermal transfer medium outlet for withdrawing the thermal transfer medium from the interior; and directing mechanism for directing thermal transfer medium from the thermal transfer medium inlet to the thermal transfer medium outlet in a first direction along the length of the spindle and in a second direction along the length of the spindle. The second direction is opposite the first direction. The first or second direction is along the inner wall of the interior of the spindle, the inner wall being arranged to rotate during operation of the centrifugal separator.
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公开(公告)号：US09884327B2
公开(公告)日：2018-02-06
申请号：US14439592
申请日：2013-11-19
发明人： Per Fonser , Peter Hagqvist , Martin Hansson , Lars Hillström , Roland Isaksson , Carl Häggmark , Tom Manelius , Jan Skoog , Peter Thorwid , Olle Törnblom
IPC分类号： B04B7/12 , B01D45/14 , B04B5/12 , B04B7/02 , B04B9/06 , B04B9/12 , B04B11/02 , B04B5/08 , B04B7/14 , B04C9/00
CPC分类号： B04B7/12 , B01D45/14 , B04B5/08 , B04B5/12 , B04B7/02 , B04B7/14 , B04B9/06 , B04B9/12 , B04B11/02 , B04B2005/125 , B04C2009/007
摘要： A centrifugal separator for separation of particles from a gas stream is disclosed. The centrifugal separator includes a self-supporting frame for mounting inside an existing vessel for guiding the gas stream. The frame comprises a holder configured to hold the frame at a position inside the vessel, and a first partition for dividing the vessel into a first section and a second section. The first section is upstream of the second section. The separator includes a gas inlet communicating with the first section, and a gas outlet communicating with the second section. A centrifugal rotor is arranged to be rotatably supported in the frame around a rotational axis, the rotor having a first and a second end portion and including a plurality of separation plates defining separation passages between the plates. The centrifugal separator is configured such that the first and second sections communicate via the separation passages of the rotor.
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3.发明授权公开(公告)号：US11052409B2
公开(公告)日：2021-07-06
申请号：US15566645
申请日：2016-04-22
发明人： Leonard Borgström , Peter Thorwid
摘要： A method of supervising and controlling an E-line position in a centrifugal separator and a centrifugal separator include the E-line positon being continuously calculated based on inter alia, monitored density of light and heavy liquid phases, and monitored pressure at outlet side of light and/or heavy liquid outlet passages. First and/or second valves are controlled to control the E-line position, based on the supervised E-line position.
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4.发明授权公开(公告)号：US10960411B2
公开(公告)日：2021-03-30
申请号：US15882695
申请日：2018-01-29
发明人： Sven-Ake Nilsson , Peter Thorwid
摘要： A separation disc for a centrifugal separator and a method for manufacturing the separation disc are disclosed. The separation disc is of metal material and adapted to be compressed in a stack of separation discs inside a centrifugal rotor for separating a liquid mixture. The separation disc has a truncated conical shape with an inner surface and an outer surface and a plurality of spacing members extending a certain height above at least one of the inner surface and the outer surface for providing interspaces between mutually adjacent separation discs in the stack. The spacing members are of such small size that each one of them has a width which is less than 2 mm along the surface of the separation disc. The surface of the separation disc is configured with a distribution pattern of the small-sized spacing members, in such a way as to provide equidistant interspaces in the compressed disc stack.
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公开(公告)号：US10086384B2
公开(公告)日：2018-10-02
申请号：US14387191
申请日：2013-03-22
发明人： Peter Thorwid , Roland Isaksson , Hans Moberg , Carl Häggmark , Göran Krook
摘要： The invention relates to a centrifugal separator having a separation space with a set of separation plates, an inlet configured to feed a fluid product to be separated into the separation space, the inlet and the separation space being connected in a pressure mediating manner, a first and a second outlet extending from the separation space for discharge of a two phases of the product. A discharge control system is configured to trigger the opening of the second outlet upon a trigger condition, wherein the discharge control system comprises a sensor arranged to determine the inlet pressure and/or the inlet flow of fluid product, and the trigger condtion is associated with a decrease in inlet flow in relation to inlet pressure, indicating an increasing flow resistance downstream of the inlet. The invention further relates to a discharge control system and a method of controlling the intermittent discharge of a centrifugal separator.
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公开(公告)号：US11123753B2
公开(公告)日：2021-09-21
申请号：US16346000
申请日：2017-10-25
发明人： Sven-Åke Nilsson , Peter Thorwid
摘要： A centrifugal separator (14) comprises a stationary frame (15), a spindle (16) rotatably supported by the frame, a centrifuge rotor 17 mounted to a first end of the spindle to rotate together with the spindle around an axis (X2) of rotation. A stack (10) of separation discs (1) is arranged to rotate coaxially with the centrifuge rotor The stack of separation discs comprises a set of axially aligned separation discs with an inner surface and an outer surface and a plurality spot-formed spacing members extending from a base from at least one of the inner surface and the outer surface The surface density of said spot-formed spacing members is above 25 spot-formed spacing members/dm2 throughout the inner and/or outer surface of the separation disc. A first region at a bottom of the discs has a higher density of the spot-formed spacing members than a second region.
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公开(公告)号：US20200346225A1
公开(公告)日：2020-11-05
申请号：US16583703
申请日：2019-09-26
摘要： The invention relates to a centrifugal separator comprising a casing which delimits and seals off a space in which a rotor is arranged. The rotor forms a separation space which is sealed or isolated from the space, and in which separation space centrifugal separation of a higher density and a lower density component from a fluid takes place. An inlet extends into the rotor for introducing fluid to the separation space, and a first outlet extends from the rotor for discharge of a component separated from the fluid. The space is connected to a pump device which is arranged to remove gas, thereby maintaining negative pressure in said space. The rotor comprises at least one second outlet extending from the separation space to the space for discharge of at least one higher density component separated from the fluid. The invention also relates to a method in such a centrifugal separator.
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公开(公告)号：US10710101B2
公开(公告)日：2020-07-14
申请号：US14439513
申请日：2013-11-19
发明人： Per Fonser , Peter Hagqvist , Lars Hillström , Carl Häggmark , Roland Isaksson , Tom Manelius , Jan Skoog , Peter Thorwid , Olle Törnblom , Martin Hansson
摘要： A centrifugal separator and a method for separation of particles from a gas stream is disclosed. The separator includes a frame, a gas inlet and a gas outlet. A centrifugal rotor is arranged to be rotatable in the frame around a rotational axis and includes a plurality of separation plates defining separation passages between the plates. A central gas chamber in the rotor communicates with a radially inner portion of the separation passages and the gas outlet. A space surrounding the rotor communicates with a radially outer portion of the separation passages and the gas inlet. A device is configured to bring the gas stream in rotation upstream of the rotor. The centrifugal rotor is configured such that the rotational flow of the gas mixture drives the rotation of the centrifugal rotor for separating particles from the same gas stream being conducted from the space surrounding the rotor, through the separation passages between the plates and towards the central gas chamber.
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9.发明申请公开(公告)号：US20150045199A1
公开(公告)日：2015-02-12
申请号：US14387191
申请日：2013-03-22
发明人： Peter Thorwid , Roland Isaksson , Hans Moberg , Carl Häggmark , Göran Krook
摘要： The invention relates to a centrifugal separator having a separation space with a set of separation plates, an inlet configured to feed a fluid product to be separated into the separation space, the inlet and the separation space being connected in a pressure mediating manner, a first and a second outlet extending from the separation space for discharge of a two phases of the product. A discharge control system is configured to trigger the opening of the second outlet upon a trigger condition, wherein the discharge control system comprises a sensor arranged to determine the inlet pressure and/or the inlet flow of fluid product, and the trigger condtion is associated with a decrease in inlet flow in relation to inlet pressure, indicating an increasing flow resistance downstream of the inlet. The invention further relates to a discharge control system and a method of controlling the intermittent discharge of a centrifugal separator.
摘要翻译： 本发明涉及一种离心分离器，其具有分离空间与一组分离板，入口构造成将要分离的流体产物供给到分离空间中，入口和分离空间以压力调节方式连接，第一 以及从分离空间延伸的用于排出产品两相的第二出口。 排放控制系统被配置为在触发条件下触发第二出口的打开，其中排放控制系统包括布置成确定流体产品的入口压力和/或入口流量的传感器，并且触发器条件与 入口流量相对于入口压力的减小，表明入口下游的流动阻力增加。 本发明还涉及排出控制系统和控制离心分离器间歇排放的方法。
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公开(公告)号：US10960412B2
公开(公告)日：2021-03-30
申请号：US16342103
申请日：2017-10-25
发明人： Sven-Åke Nilsson , Peter Thorwid
摘要： A stack of separation discs is adapted to be included inside a centrifugal rotor for separating a liquid including a plurality of axially aligned separation discs having a truncated conical shape with an inner surface and an outer surface and a plurality of spot-formed spacing members extending from a base from at least one of the inner surface and the outer surface for providing interspaces between mutually adjacent separation discs in the stack of separation discs. The plurality of separation discs having spot-formed spacing members are arranged so that a majority of said spot-formed spacing members of a disc are displaced compared to the spot-formed spacing members of an adjacent disc. A centrifugal separator including such a stack of separation discs is also disclosed.
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