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1. 发明授权

EP1068016B1 ROTOR FOR CENTRIFUGAL SEPARATOR 有权
标题翻译：转子离心分离
公开(公告)号：EP1068016B1
公开(公告)日：2009-08-19
申请号：EP99918411.2
申请日：1999-03-30
申请人： ALFA LAVAL AB
发明人： HÄLLGREN, Ingvar , DAVIDSSON, Thomas , LARSSON, Leif , MOBERG, Hans
IPC分类号： B04B9/06 , B04B1/04 , B04B5/00 , B04B7/12
CPC分类号： B04B5/005 , B04B1/04 , B04B7/12
摘要： In a rotor for a centrifugal separator there is delimited at one rotor end a distribution chamber (24) for a pressurised liquid supplied to the rotor for being cleaned from particles, and at the opposite rotor end there are liquid outlets arranged for reaction drive of the rotor. The liquid outlets open on the rotor outside in a liquid free space radially spaced from the rotational axis of the rotor. The separation chamber (7) of the rotor, which is situated between the distribution chamber (24) and the outlets (27), contains arcuate separation discs (11), which are distributed around the rotational axis (10) of the rotor and formed such that a lot of axially extending separation channels are delimited, which have a relatively small through-flow resistance to liquid to be cleaned. The separation channels extend axially from the distribution chamber (24) to a collecting chamber (25). The collecting chamber (25) communicates with an outlet chamber (26) at a radial level in the rotor corresponding to that of the radially innermost parts of the separation discs. By the invention efficient separation can be accomplished and the largest possible part of the pressure of the supplied liquid can be used for the rotation of the rotor.

2. 发明授权

EP1011873B1 A SEALING DEVICE FOR A CENTRIFUGAL SEPARATOR 失效
标题翻译：密封装置用于离心分离
公开(公告)号：EP1011873B1
公开(公告)日：2007-11-07
申请号：EP98929970.6
申请日：1998-06-09
申请人： ALFA LAVAL AB
发明人： KRISTENSEN, Aksel , NILSSON, Sven-Ake , PITKÄMÄKI, Juoko , ÖHLANDER, Carl, Peder , SANDBLOM, Robert
IPC分类号： B04B9/12 , F16J15/40
CPC分类号： F16J15/443 , B04B9/12
摘要： A simple but still effective sealing device to separate two openings (4, 5), which are arranged at a distance from each other in the outer casing (3) of a shaft suspension unit (1), which supports a shaft (2) of a centrifugal separator in a bearing (8, 9), the shaft extending axially through at least one opening (4) into a space surrounding the shaft (2) in the outer casing (3). The sealing device is provided with sealing elements (12, 13), one connected to the outer casing (3) and one connected to the shaft (2), wich surround the shaft (2) and divide the space in two departments (15, 16) connected to one opening each (4, 5, repectively). The sealing elements form between themselves a narrow gap (14) surrounding the shaft (2), which prevents the flow of gas between the departments (15, 16). One of the sealing elements (12, 13) has a channel (21), which has an opening (23) in a central part of the gap (14), for the supply of a sealing liquid under pressure to the gap (14) in such a way that oil flows from the opening (23) through the gap (14) and out into the two departments (15, 16).

3. 发明授权

EP0852693B1 PLATE HEAT EXCHANGER 失效
公开(公告)号：EP0852693B1
公开(公告)日：2003-12-10
申请号：EP96932904.4
申请日：1996-09-24
申请人： ALFA LAVAL AB
发明人： BLOMGREN, Ralf, Erik
IPC分类号： F28D9/00 , F28F3/08 , F28F9/02
CPC分类号： F28F9/00 , F28D9/00 , F28F3/083 , F28F2275/10 , F28F2275/16 , Y10S165/906
摘要： A plate heat exchanger (1) comprises a stack of heat transfer plates (2) provided between two end pieces (3, 4) and each having an essentially plane extension. Each end piece (3, 4) has an inner surface (9) facing said heat transfer plates and an outer surface (14) facing away from said heat transfer plates (2) and extending from one side to another of the end piece (3, 4). The plate heat exchanger (1) is compressed by means of at least one member (18) extending around the plate heat exchanger and abutting said outer surface (14) of each end piece (3, 4) in order to prevent the retreat of the end pieces from each other. The outer surface (14) of each end piece (3, 4) is curved in such a manner that the end piece has a convex shape in a cross section along a first plane (Y, Z) being perpendicular to the essentially plane extension of the heat transfer plate (2).

4. 发明授权

EP1066493B1 HEAT EXCHANGER INSTALLATION 有权
标题翻译：交换装置
公开(公告)号：EP1066493B1
公开(公告)日：2003-05-14
申请号：EP99917272.9
申请日：1999-03-02
申请人： Alfa Laval AB
发明人： ENGSTRÖM, Anders , PERSSON, Mats
IPC分类号： F28D9/00 , F24D10/00
CPC分类号： F24D10/003 , F24D3/087 , F28D9/00 , F28F9/26 , Y02E20/14
摘要： The present invention concerns a heat exchanger plant (15) comprising two brazed plate heat exchangers (16, 17), each of which has a plate package comprising two end plates and several intermediate plates therebetween. Through each plate package several port channels extend formed by aligned port holes in the said plates. The plate heat exchangers are placed such that two end plates are situated at a distance from and opposite to each other, channel forming members being arranged between these end plates for conducting heat exchange fluid through connection channels to or from one or several of the port channels. The two plate heat exchangers (16, 17) are brazed together through a spacing member (18) and at least one of the said channel forming members has a shape such that a connection channel formed therein extends from a space between the plate heat exchangers (16, 17) through the spacing member (18) to the outside thereof, such that the connection channel is accessible for supply or removal of heat exchange fluid outside the said space between the plate heat exchangers (16, 17).

5. 发明公开

EP1265816A1 A DEVICE FOR SEPARATING A SURFACE LAYER OF A LIQUID 有权
标题翻译：装置用于分离的液体表面层
公开(公告)号：EP1265816A1
公开(公告)日：2002-12-18
申请号：EP01912638.2
申请日：2001-03-09
申请人： ALFA LAVAL AB
发明人： GUSTAFSSON, Bengt, Olof
IPC分类号： C02F1/40 , E02B15/04 , B01D17/02
CPC分类号： B01D17/0214 , B01D17/0217
摘要： The invention refers to a device for separating a surface layer of a liquid by a container submerged in the liquid. The container includes a bottom, a wall member, connected to the bottom and having a variable length, and a separating member, which is connected to the wall member and communicates with a space in the container via an opening. An overflow portion of the separating member is located below a free liquid surface of the surface layer and permits the flowing of liquid. A discharge conduit extends from the space for liquid discharge. A floating member, connected to the separating member, floats on the liquid outside the container and exerts a lifting force upon the separating member in a direction prolonging the wall member. A submerging member is connected to the separating member and located below the over flow portion. The submerging member has a mass and exerts a downwardly directed force, so that the overflow portion is located below the free liquid surface, and a lifting force due to liquid pressure when the space has been filled with such a quantity of liquid that the submerging member partly is located in the liquid, wherein the overflow portion will be above the free liquid surface.

6. 发明公开

EP1214151A1 LOCKING RING FOR A CENTRIFUGAL SEPARATOR 有权
标题翻译：切割转盘跟压缩
公开(公告)号：EP1214151A1
公开(公告)日：2002-06-19
申请号：EP00915666.2
申请日：2000-03-08
申请人： Alfa Laval AB
发明人： HEDIN, Sven , KLINTENSTEDT, Kjell , SALMI, Toini
IPC分类号： B04B7/08
CPC分类号： B04B1/14 , B04B7/08
摘要： A locking ring (1) for joining a first and a second part (2, 3, respectively) of a rotor in a centrifugal separator, the first rotor part (2) having a circular cylindrical end portion (4), which has a certain inner radius and a centre line, which essentially coincides with the rotational axis, and the second part (3) has an annular flange portion (5). The locking ring (1) is arranged to be brought radially outwardly from a position radially inside the inside of the circular cylindrical end portion (4) and axially outside the annular flange portion (5) into a recess (7) and via two radially outer contact surfaces (8, 9) to abut against the end portion (4) and via inner contact surfaces (10, 11) to abut against the flange portion (5). According to the invention the locking ring (1) extends substantially a complete revolution around the rotational axis with two end surfaces turned towards one another and being so formed in one single integrated piece out of an elastically resilient material that it in unloaded condition tends to be substantially annular shaped with an outer diameter, which is at least as large as the outer radius of the recess (7), and that the contact surfaces (8, 9, 10, 11) are so located and directed that they in every axial section around the rotational axis have a middle point, in which the contact surfaces (8, 9, 10, 11) have a direction of normalcy, which is the same and coinciding for all the contact surfaces (8, 9, 10, 11), and in direction towards the separation chamber (12) in the interior of the rotor forms an acute angle with the rotational axis, the contact surfaces (8, 9, 10, 11) being substantially symmetrical with respect to this direction of normalcy.

7. 发明授权

EP0879089B1 METHOD AND DEVICE FOR THE SUPPLY OF CONTROL LIQUID TO A CENTRIFUGAL SEPARATOR 失效
标题翻译：方法和装置救济流体输送到旋风
公开(公告)号：EP0879089B1
公开(公告)日：2002-06-12
申请号：EP97902780.2
申请日：1997-01-24
申请人： Alfa Laval AB
发明人： KARLSSON, Per, Gunnar
IPC分类号： B04B1/10 , B04B11/04
CPC分类号： B04B1/14
摘要： Method and device (21) for the supply of control liquid to a rotor of a centrifugal separator, which device (21) comprises a cylinder (25), in which a movable wall element (26) is arranged, which axially delimits a storing chamber (29) in the cylinder (25). In the storing chamber (29) a predetermined volume of control liquid is stored. Control liquid is pressed out of the storing chamber (29) into the rotor during axial displacement of the wall element (26). Futhermore, the invention comprises a centrifugal separator, which is provided with such a device (21). A portion of the control liquid in the storing chamber (29) is pressed upon displacement of the wall element (26) a first distance out through a first outlet passage (33) in the device with a high flow. The first outlet passage (33) is then closed when the wall element (26) has been displaced this distance. A portion of the remaining control volume of control liquid in the storing chamber (29) is pressed out of the storing chamber (29) upon continuing displacement of the wall element (26) a second distance through a second outlet passage (36) in the supplying device (21) with a flow, which is substantially lower than the first flow.

8. 发明公开

EP1206674A1 PLATE HEAT EXCHANGER 审中-公开
标题翻译：板式换热器
公开(公告)号：EP1206674A1
公开(公告)日：2002-05-22
申请号：EP00941072.1
申请日：2000-06-08
申请人： Alfa Laval AB
发明人： LINDHOLM, Ingvar, Helge, Birger
IPC分类号： F28F3/00 , B23K1/00
CPC分类号： F28F3/046 , B23K1/0012 , B23K2201/14 , F28D9/005
摘要： The present invention concerns among other things a plate heat exchanger for at least two heat exchanging fluids which heat exchanger is permanenty joined with at least one sealing means and comprises at least one core of plates with heat transferring plates (1-8), at least two end plates as well as inlet organs and outlet organs for the heat exchanging fluids. The core of plates includes alternating heat transferring plates (1-4) and intermediate heat transferring plates (5-8) between the alternating plates. Each one of the said alternating heat transferring plates (1-4) and a second one of the said two respective adjacent intermediate plates (5-8) form a double wall unit. For each one of the said double wall units ridges (9) and valleys (10) on the said alternating plate (1-4) are in all of their respective areal extensions adapted to and in near contact with the corresponding ridges (9) and valleys (10) on the said intermediate plate (5-8) except right before each one of at least one of those points with the closest around situated areas where the ridges (9) and valley (10) on a double wall unit are in contact with ridges (9) and valleys (10) on another double wall unit in the core of plates.

9. 发明授权

EP0814910B1 AN OUTLET DEVICE AND A CENTRIFUGAL SEPARATOR PROVIDED WITH SUCH AN OUTLET DEVICE 失效
标题翻译：倾注装置和分离器这样的设备OUT
公开(公告)号：EP0814910B1
公开(公告)日：2002-05-15
申请号：EP97901887.6
申请日：1997-01-23
申请人： Alfa Laval AB
发明人： BORGSTRÖM, Leonard , CARLSSON, Claes-Göran , FRANZEN, Peter , INGE, Claes , LAGERSTEDT, Torgny , MOBERG, Hans , SZEPESSY, Stefan , SUNDSTRÖM, Mikael
IPC分类号： B04B11/08
CPC分类号： B04B11/082
摘要： An outlet device for discharging liquid from a chamber (16) in a centrifugal rotor, that is rotatable around a rotational axis (12), comprises an outlet member (29). This outlet member is turnable around a turning axis (26) in parallel with said rotational axis (12) and is held by a spring (31) pressed radially outwardly in the chamber (16) against and partly into a liquid body rotating with the centrifugal rotor. The outlet member (29), which further forms an outlet channel (34) and an inlet opening (30) communicating therewith, is shaped such that the inlet opening (30) is situated downstream of said turning axis (26) during operation of the centrifugal rotor.

10. 发明公开

EP1185374A1 METHOD AND DEVICE FOR INDICATING AN UNDESIRED OPERATION CONDITION OF A CENTRIFUGAL SEPARATOR 有权
标题翻译：的方法和装置，用于指示一个离心式分离器的不希望的操作条件
公开(公告)号：EP1185374A1
公开(公告)日：2002-03-13
申请号：EP00917543.1
申请日：2000-03-03
申请人： ALFA LAVAL AB
发明人： DELLDEN, Lars, Hakan
IPC分类号： B04B13/00 , B04B1/08 , B04B11/04
CPC分类号： B04B1/08 , B04B11/04 , B04B13/00
摘要： An indication device (2) indicates an undesired operation condition of a centrifugal separator (4) and comprises an inlet valve (34) situated in a supply conduit (10) to the separator, and an outlet valve (30) situated in an outlet conduit (12) from the separator. During normal operation of the separator the valves are adjusted in open normal valve positions for passing normal flows through the supply and outlet conduits. A control unit (28) is adapted to activate a signal means (39) to generate an error signal in response to a pressure sensor (32) if the pressure sensor during a predetermined period of time during operation of the separator senses a course of pressure change in the outlet conduit (12) differing from an expected normal course of pressure change, when the inlet and outlet valves during a predetermined period of time are adjusted in valve positions which at least substantially decreases the flows in the supply and outlet conduits from said normal flows.

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