公开(公告)号：US10960411B2

公开(公告)日：2021-03-30

申请号：US15882695

申请日：2018-01-29

申请人： ALFA LAVAL CORPORATE AB

发明人： Sven-Ake Nilsson ,  Peter Thorwid

IPC分类号： B04B7/14 ,  B04B1/08 ,  B21D22/16

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.

公开(公告)号：US10940489B2

公开(公告)日：2021-03-09

申请号：US15568628

申请日：2016-04-22

申请人： ALFA LAVAL CORPORATE AB

发明人： Peter Hagqvist ,  Olle Törnblom ,  Torbjörn Larsen ,  Björn Wernerson ,  Galya Simeonova ,  Mustafa Rasol

IPC分类号： B04B1/08 ,  B04B7/14 ,  B04B9/02 ,  B04B11/02 ,  B04B5/00 ,  F01M13/04

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 closing a separation chamber. The separation chamber includes a stack of separation discs arranged coaxially around the axis of rotation at a distance from each other such as to form passages between each two adjacent separation discs. The stack of separation discs includes a first type of separation discs having an outer diameter of A or below, and at least one separation disc of a second type having outer diameter B or above, wherein diameter B is larger than diameter A. At least one of the separation discs of the second type is arranged at a position in the disc stack that is within the upper 15% of the total number of separation discs and at least one of the first type of separation disc is arranged axially above the uppermost separation disc of the second type.

公开(公告)号：US20190247866A1

公开(公告)日：2019-08-15

申请号：US16342103

申请日：2017-10-25

申请人： ALFA LAVAL CORPORATE AB

发明人： Sven-Åke NILSSON ,  Peter THORWID

IPC分类号： B04B7/14 ,  B04B1/08

CPC分类号： B04B7/14 ,  B04B1/08

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.

公开(公告)号：US10322362B2

公开(公告)日：2019-06-18

申请号：US15512749

申请日：2014-09-25

申请人： TOKYO ROKI CO., LTD.

发明人： Kosaku Ishida ,  Yoshitaka Watanabe

IPC分类号： B01D45/14 ,  B04B5/12 ,  B01D45/12 ,  B04B1/08 ,  B04B7/14 ,  F01M13/04

摘要： An oil separator includes a cylindrical housing that accommodates a rotor and is provided with a gas discharge portion (first exhaust portion), the oil separator being configured to introduce target gas from a rotation center side of the rotor to condense oil mist and emit condensed oil from an outer peripheral edge of the rotor and further being configured to discharge from the housing through the gas discharge portion the blow-by gas (target gas) after having the oil mist separated. The oil separator includes a dome portion (sectioning member) that covers from an outside of the housing the gas discharge portion and sections a closed space around the gas discharge portion and an outlet pipe (second exhaust portion) that is provided to the dome portion and that discharges the blow-by gas from the closed space that is sectioned by the dome portion.

公开(公告)号：US10173227B2

公开(公告)日：2019-01-08

申请号：US15543339

申请日：2016-01-21

申请人： ALFA LAVAL CORPORATE AB

发明人： Thomas Eliasson ,  Per Fonser

IPC分类号： B04B9/12 ,  B04B1/08 ,  B04B7/14

摘要： A centrifugal separator includes a housing, a spindle, and a rotor. The spindle is only journaled in a bearing arrangement fixedly positioned in the housing at the first axial end portion. The centrifugal separator includes a seal arranged between the spindle and the housing. The seal is arranged at a distance from the bearing arrangement where the spindle is subjected to deflection. The seal includes a cylindrical inner surface associated with the housing, a circular slot in the spindle or in a rotating member associated with the spindle, and a piston ring arranged in the slot and abutting against the cylindrical inner surface.

公开(公告)号：US20180345298A1

公开(公告)日：2018-12-06

申请号：US16070444

申请日：2017-02-20

申请人： ALFA LAVAL CORPORATE AB

发明人： Olle TÖRNBLOM

IPC分类号： B04B5/12 ,  B04B7/14 ,  B04B1/08 ,  B04B9/06

CPC分类号： B04B7/14 ,  B04B5/12 ,  B04B2005/125

摘要： A centrifuge rotor for a centrifugal separator for separation of a relatively heavy phase of a fluid from a relatively light phase of the fluid is disclosed. The centrifuge rotor includes a stack of conical disks, and has a central axis of rotation. Each conical disk has an outward surface and an inward surface. The stack of conical disks includes a plurality of interspaces between adjacent conical disks. The interspaces include first interspaces for separation of the relatively heavy phase from the relatively light phase, and second interspaces. A check valve device is provided in each second interspace for closing the second interspace in an inward direction towards the central axis, and permitting opening of the second interspace in an outward direction. Also a centrifugal separator, a method for separation and a conical disk are disclosed.

公开(公告)号：US20180304277A1

公开(公告)日：2018-10-25

申请号：US15522433

申请日：2015-11-25

申请人： FLSMIDTH A/S

发明人： Robert Heinrichs ,  Mike MCLEAVY

IPC分类号： B04B1/08 ,  B04B15/12 ,  B04B7/06 ,  B04B7/14 ,  G01N3/56

CPC分类号： B04B1/08 ,  B03B5/32 ,  B03B13/00 ,  B04B1/00 ,  B04B7/06 ,  B04B7/14 ,  B04B13/00 ,  B04B15/12 ,  B04B2007/065 ,  B04B2013/006 ,  G01N3/56

摘要： A system for the continuous monitoring of wear and/or pressure within a gravity concentrator/centrifugal separator [10] is disclosed. The system may comprise a gravity concentrator/centrifugal separator [10] having a cone [30], rotor housing shell [20], and water jacket [40]. At least one detector [34] may be provided to at least one of the cone [30], rotor housing shell [20], and water jacket [40]. At least one integrated or handheld sensor [60] may be provided adjacent to portions of the gravity concentrator/centrifugal separator [10], the sensor [60] being configured to communicate (e.g., wirelessly) with the at least one detector [34] during operation of the gravity concentrator/centrifugal separator [10]. In use, the cone [30] may wear away and ultimately affect a function of the least one detector [34]. In use, pressure changes within the water jacket [40] may change and ultimately affect a function (e.g., an output signal) of the least one detector [34]. The at least one sensor [60] may be configured to monitor said function(s) of the least one detector [34]. When the at least one sensor [60] detects a change in the signal of the at least one detector [34], an operator or control system may be notified that maintenance or cone [30] replacement may be necessary; and/or an operator or control system may be notified that one or more operational inputs may need to be adjusted to obtain peak performance of the gravity concentrator/centrifugal separator [10].

公开(公告)号：US09849467B2

公开(公告)日：2017-12-26

申请号：US14401075

申请日：2013-05-13

申请人： ALFA LAVAL CORPORATE AB

发明人： Peter Hagqvist

IPC分类号： B04B1/08 ,  B04B7/14

CPC分类号： B04B7/14 ,  B04B1/08

摘要： The invention relates to a disc package for a centrifugal separator and a centrifugal separator provided with a disc package comprising a first set of separation discs and a second set of separation discs. Each separation disc of the first and second sets are provided with a separation surface with is inclined with respect to the radial direction. The separation discs of the first and second sets are arranged coaxially around an axis of rotation at a distance from each other such that to form passages between each two adjacent separation discs. The separation discs of the first set have outer diameters A or below, and the separation discs of the second set have outer diameters B or above, wherein diameter B is larger than diameter A. At least two separation discs of the first set is arranged between every two separation disc of the second set.

公开(公告)号：US20170296955A1

公开(公告)日：2017-10-19

申请号：US15508419

申请日：2014-09-05

申请人： TOKYO ROKI CO., LTD.

发明人： Kosaku ISHIDA ,  Tsuyoshi YAO ,  Yoshitaka WATANABE

IPC分类号： B01D45/14 ,  B01D47/02 ,  B04B1/08 ,  B04B7/14

CPC分类号： B01D45/14 ,  B01D47/00 ,  B01D47/02 ,  B01F3/04 ,  B04B1/08 ,  B04B5/005 ,  B04B5/12 ,  B04B7/14

摘要： A rotor separates oil mist from a target gas. This rotor includes a separation disk group having separation disks including a plurality of truncated cone shape plate members layered. The separation disk group includes a first space (hollow part with attachment opening) and a second space (gaps between separation disks), the first space formed on a rotation center side of the rotor and the second space formed between separation disks that are laid over and in communication with the first space. The first space contains an oil introducing portion (gap between the upper end of the spindle and the upper side sealing member). Target gas is introduced into the first space, target gas and oil introduced from the oil introducing portion are made to flow from the first space to the second space to be discharged outward from an outer peripheral edge of the separation disk group, while rotating the rotor.

公开(公告)号：US20170072409A1

公开(公告)日：2017-03-16

申请号：US15305749

申请日：2015-04-23

申请人： ALFA LAVAL CORPORATE AB

发明人： Mats-Örjan POGÉN

IPC分类号： B04B5/08 ,  B04B11/02 ,  F01M13/04 ,  B04B7/14

CPC分类号： B04B5/08 ,  B04B5/12 ,  B04B7/14 ,  B04B11/02 ,  B04B2005/125 ,  F01M13/04 ,  F01M2013/0422

摘要： A centrifugal separator is configured for cleaning of crankcase gases from an internal combustion engine. The centrifugal separator includes a rotor rotatably arranged inside a stationary housing. The stationary housing includes an inlet for crankcase gases, a gas outlet, and a liquid outlet. The rotor includes a stack of separation discs, each separation disc of the stack of separation discs having a center axis, an inner surface, and an outer surface. A circumferential inner end surface extends between the inner surface and the outer surface. The circumferential inner end surface of at least one separation disc of the stack of separation discs includes a substantially flat first surface portion extending at an angle of at least 20 degrees to the center axis.

摘要翻译： 离心分离器构造成用于清洁来自内燃机的曲轴箱气体。 离心分离器包括可旋转地布置在固定壳体内的转子。 固定壳体包括用于曲轴箱气体的入口，气体出口和液体出口。 转子包括一叠分离盘，分离盘堆叠的每个分离盘具有中心轴线，内表面和外表面。 周向内端表面在内表面和外表面之间延伸。 分离盘堆叠的至少一个分离盘的周向内端表面包括基本上平坦的第一表面部分，其以与中心轴线成至少20度的角度延伸。