公开(公告)号：WO2016107702A1

公开(公告)日：2016-07-07

申请号：PCT/EP2015/077520

申请日：2015-11-24

Applicant: NUOVO PIGNONE SRL

Inventor： BERGAMINI, Lorenzo ,  CAPPIELLO, Tommaso ,  PIETANZA, Vincenzo

IPC: F16J15/00 ,  F16J15/18

CPC classification number: F16J15/004 ,  F16J15/006 ,  F16J15/185 ,  F16J15/48

Abstract: A seal assembly (1) for a valve stem (104) comprises an external seal (2) placed on a valve stem (104) facing an external environment (E); an internal seal (3) placed on the valve stem (104) facing a process environment (P); the external (2) and internal seals (3) define a chamber (4) for the containment of barrier fluid; the chamber (4) has an inlet (5) configured to be placed into fluid communication with a source (S) of barrier fluid; a detector (6) of the amount of barrier fluid; a pressurizer device (7) for providing the chamber (4) with a positive pressure with respect to the process environment (E); the pressurizer device (7) is configured to be installed coaxially with the valve stem (104).

Abstract translation: 用于阀杆（104）的密封组件（1）包括放置在面向外部环境（E）的阀杆（104）上的外部密封件（2）; 位于阀杆（104）上面向工艺环境（P）的内部密封件（3）; 外部（2）和内部密封件（3）限定用于容纳屏障流体的腔室（4）; 所述腔室（4）具有入口（5），所述入口构造成与阻挡流体源（S）流体连通; 阻挡液量的检测器（6）; 用于相对于处理环境（E）提供腔室（4）的正压力的加压器装置（7）; 加压装置（7）构造成与阀杆（104）同轴安装。

公开(公告)号：WO2015071398A1

公开(公告)日：2015-05-21

申请号：PCT/EP2014/074571

申请日：2014-11-14

Applicant: NUOVO PIGNONE SRL

Inventor： BERGAMINI, Lorenzo ,  PIETANZA, Vincenzo

IPC: F16K47/08

CPC classification number: F16K47/08 ,  F16K11/07

Abstract: A control valve (1) comprising: a cylindrical hollow trim (2) defining an inner bore (5) extending along an axis (Y) between a first opening (3) and a second opening (4), said first opening (3) defining an inlet of said valve (1), said trim (2) comprising: a first outer cylinder (11) extending along said axis (Y) and comprising a first plurality (14) of radial through holes defining an outlet, a second cylinder (12), housed in said first cylinder (11) and coaxial therewith, said second cylinder comprising a second plurality (15) of radial through holes, said holes of said first plurality (14) being smaller and in greater number than the holes of said second plurality (15), for each hole (14, 15) of one of said first and second cylinders (11, 12) the projection along a radial direction on the other of said first and second cylinders (12, 11) being spaced from each hole (15, 14)of the other of said first and second plurality a plug (6) sized to fit inside the bore (5) and slidably movable along said axis (Y).

Abstract translation: 一种控制阀（1），包括：圆柱形空心装饰件（2），限定沿第一开口（3）和第二开口（4）之间的轴线（Y）延伸的内孔（5），所述第一开口（3） 限定所述阀（1）的入口，所述装饰件（2）包括：沿着所述轴线（Y）延伸并包括限定出口的第一多个（14）径向通孔的第一外筒（11） （12），容纳在所述第一气缸（11）中并与其同轴，所述第二气缸包括第二多个（15）径向通孔，所述第一多个（14）的所述孔较小， 所述第二多个（15）中，对于所述第一和第二气缸（11,12）中的一个的每个孔（14,15），所述第一和第二气缸（12,11）中的另一个上沿径向方向的突起间隔开 所述第一和第二多个插塞（6）中的另一个的另一个的每个孔（15,14）的尺寸适于装配在所述孔（5）内并且可滑动地移动 e沿着所述轴线（Y）。

公开(公告)号：WO2016055371A1

公开(公告)日：2016-04-14

申请号：PCT/EP2015/072803

申请日：2015-10-02

Applicant: NUOVO PIGNONE SRL

Inventor： BERGAMINI, Lorenzo

IPC: F16J15/32

CPC classification number: F01D11/003 ,  F01D11/001 ,  F16J15/3292

Abstract: A seal (1) for a gap (2) between an outer (3a) and an inner cylindrical surface (2b), coaxial with a central axis (A) in common and arranged to rotate reciprocally, the seal (1) comprises a plurality of plate elements (7) stacked onto one another to define a ring (11) between the outer (2a) and inner cylindrical surfaces (2b), wherein each plate has a concave (8) and a convex side (9), the convex side (9) of each plate element (7) being adjacent to the concave side (8) of the next plate element (7).

Abstract translation: 一种用于在外部（3a）和内部圆柱形表面（2b）之间的间隙（2）的密封件（1），其与中心轴线（A）共同并且布置成往复旋转，所述密封件（1）包括多个 的板状元件（7）彼此堆叠以在外部（2a）和内部圆柱形表面（2b）之间限定环（11），其中每个板具有凹入（8）和凸起（9），凸起 每个板元件（7）的侧面（9）与下一个板元件（7）的凹面（8）相邻。

公开(公告)号：WO2015114136A1

公开(公告)日：2015-08-06

申请号：PCT/EP2015/052067

申请日：2015-02-02

Applicant: NUOVO PIGNONE SRL

Inventor： BERGAMINI, Lorenzo ,  CIPRIANI, Marco

IPC: F04D19/02 ,  F04D25/06 ,  F04D29/056

CPC classification number: F04D27/004 ,  F04D1/06 ,  F04D3/00 ,  F04D13/06 ,  F04D15/0066 ,  F04D17/12 ,  F04D17/122 ,  F04D19/02 ,  F04D19/024 ,  F04D19/026 ,  F04D25/0606 ,  F04D29/056 ,  F04D29/06 ,  F04D29/181 ,  F04D29/22 ,  F04D29/42 ,  F04D29/52 ,  F04D29/58 ,  F04D29/70

Abstract: A multistage turbomachine (1) is disclosed, comprising a casing (3) with a fluid inlet (5) and a fluid outlet (7), and a plurality of stages (13A, 13B) arranged in the casing (3). A flow path extends from the fluid inlet (5) to the fluid outlet (7) through the sequentially arranged stages (13A, 13B). Each stage is comprised of a rotating impeller (17A, 17B) and an electric motor embedded in the casing (3) and arranged for rotating the impeller (17A, 17B) at a controlled rotary speed. Each electric motor comprises a motor rotor (31A, 31B), arranged on the impeller (17A, 17B) and integrally rotating therewith, and a motor stator (33A, 33B) stationarily arranged in the casing (3). Pairs of sequentially arranged impellers are configured for rotation in opposite directions.

Abstract translation: 公开了一种多级涡轮机（1），包括具有流体入口（5）和流体出口（7）的壳体（3）和布置在壳体（3）中的多个级（13A，13B）。 流路从流体入口（5）延伸到流体出口（7），通过顺序排列的阶段（13A，13B）。 每个阶段包括旋转叶轮（17A，17B）和嵌入在壳体（3）中的电动马达，并布置成以受控的转速旋转叶轮（17A，17B）。 每个电动机包括布置在叶轮（17A，17B）上并与其一体旋转的电动机转子（31A，31B）和固定地布置在壳体（3）中的电动机定子（33A，33B）。 成对的顺序布置的叶轮被配置为沿相反的方向旋转。

公开(公告)号：WO2015059266A1

公开(公告)日：2015-04-30

申请号：PCT/EP2014/072834

申请日：2014-10-24

Applicant: NUOVO PIGNONE SRL

Inventor： BERGAMINI, Lorenzo ,  RIPA, Donato Antonio ,  MILONE, Fabrizio

IPC: F04D29/42 ,  F04D29/52 ,  F04D29/62 ,  F04D29/64 ,  F16J13/10

CPC classification number: F04D29/624 ,  F04D1/06 ,  F04D17/12 ,  F04D17/122 ,  F04D29/4206 ,  F04D29/426 ,  F04D29/522 ,  F04D29/528 ,  F04D29/628 ,  F04D29/644 ,  F04D29/648

Abstract: A turbo machine (100) comprising a barrel casing (1) having a cylindrical internal surface defining an internal containment volume, a bundle (5) having a cylindrical shape, adapted to be accommodated into said internal containment volume, a cylindrical cover (2) connected to the bundle (5) to close said internal containment volume and hold the bundle (5) inside the barrel casing (1), a split shear ring (3) adapted to fix said barrel casing (1) with said cylindrical cover (2) wherein the external cylindrical surface of the cylindrical cover (2) and the cylindrical internal surface of the barrel casing (1) are provided with a first circumferential groove (6) and a second circumferential groove (4) adapted to accommodate said shear ring (3) and wherein said first grooves (6) is adapted to completely accommodate the cross section of said split shear ring (3).

Abstract translation: 一种涡轮机（100），包括具有限定内部容纳容积的圆柱形内表面的筒体（1），适于容纳在所述内部容纳容积中的具有圆柱形形状的束（5），圆柱形盖（2） 连接到所述束（5）以关闭所述内部容纳容积并将所述束（5）保持在所述筒体（1）内部;分割剪切环（3），其适于将所述筒体（1）与所述圆柱形盖 ），其中所述圆柱形盖（2）的外圆柱形表面和所述枪管壳体（1）的圆柱形内表面设置有适于容纳所述剪切环的第一周向槽（6）和第二周向槽（4） 3），并且其中所述第一凹槽（6）适于完全容纳所述分割剪切环（3）的横截面。

公开(公告)号：WO2014086730A1

公开(公告)日：2014-06-12

申请号：PCT/EP2013/075289

申请日：2013-12-02

Applicant: NUOVO PIGNONE SRL

Inventor： BERGAMINI, Lorenzo ,  RIPA, Donato Antonio ,  MILONE, Fabrizio

IPC: F04D1/06 ,  F04D29/44 ,  F04D29/62

CPC classification number: F04D1/066 ,  F04D1/10 ,  F04D29/426 ,  F04D29/445 ,  F04D29/628

Abstract: A back-to-back centrifugal pump is described. The pump comprises a pump inlet (111), a pump outlet (119) and a pump shaft (107). The pump further comprises a set of first stages (113) and a set of second stages (115) in a back-to-back arrangement. Between the two sets of stages an intermediate crossover module (117) is arranged. The first set of stages (113) and the second set of stages(115) comprise respective first outer diaphragms (129) and second outer diaphragms (139). The outer diaphragms and the intermediate crossover module are stacked together and form a pump casing. The intermediate crossover module (117) forms at least one axial transfer channel (155) between the set of first stages and the set of second stages, and a fluid connection (143) between the set of second stages and the pump outlet. The second diaphragms comprise each at least one peripherally arranged through aperture(171). The through apertures are aligned to form at least one passageway (173), which fluidly connects the axial transfer channel with a most upstream one of the impellers of the second set of stages.

Abstract translation: 描述了背对背离心泵。 泵包括泵入口（111），泵出口（119）和泵轴（107）。 泵还包括一组第一级（113）和一组背对背布置的第二级（115）。 在两组阶段之间布置有中间交叉模块（117）。 第一组级113和第二组级115包括各自的第一外隔膜129和第二外隔膜139。 外隔膜和中间交叉模块堆叠在一起形成泵壳体。 中间交叉模块（117）在第一级组和第二级组之间形成至少一个轴向传递通道（155），以及在该组第二级与泵出口之间的流体连接（143）。 第二隔膜包括每个至少一个外围布置的通孔（171）。 通孔对准以形成至少一个通道（173），其将轴向传送通道与第二组级的叶轮的最上游的一个流体连接。

公开(公告)号：WO2014060343A1

公开(公告)日：2014-04-24

申请号：PCT/EP2013/071404

申请日：2013-10-14

Applicant: NUOVO PIGNONE SRL

Inventor： BERGAMINI, Lorenzo

IPC: F04D15/00 ,  F04D29/10 ,  F04D29/16

CPC classification number: F04D1/06 ,  F04D15/0088 ,  F04D29/106 ,  F04D29/167 ,  F05D2240/59 ,  F16J15/3292

Abstract: A centrifugal pump is described, comprising: a casing 3; a rotary shaft 9 arranged for rotation in the casing; a plurality of pump stages 15, 17, each pump stage comprising an impeller 15 secured on said rotary shaft 9 and arranged for rotation in a respective impeller chamber 17 formed in the casing 3. The pump further comprises a plurality of sealing members for reducing leakage between a rotary component and a respective stationary component. At least one of the sealing members 27,29 comprises an arrangement of compliant plate members attached in facing relation at root ends to the respective stationary component and forming a sealing ring between the stationary component and the respective rotary component. Moreover, at least some pump stages have a specific speed of 25 or less.

Abstract translation: 描述了一种离心泵，包括：壳体3; 旋转轴9，布置成在壳体中旋转; 多个泵级15,17，每个泵级包括固定在所述旋转轴9上并被布置成在形成于壳体3中的各个叶轮室17中旋转的叶轮15.泵还包括用于减少泄漏的多个密封构件 在旋转部件和相应的固定部件之间。 密封构件27,29中的至少一个包括以根部的方式相对于相应的固定部件附接的柔性板构件的布置，并且在固定构件和相应的旋转构件之间形成密封环。 此外，至少一些泵级具有25或更小的特定速度。

公开(公告)号：WO2013152993A1

公开(公告)日：2013-10-17

申请号：PCT/EP2013/057162

申请日：2013-04-05

Applicant: NUOVO PIGNONE SRL

Inventor： BERGAMINI, Lorenzo ,  PIETANZA, Vincenzo

IPC: F16K27/02 ,  F16K47/08

CPC classification number: F16K27/041 ,  F16K3/24 ,  F16K47/08 ,  Y10T137/87265 ,  Y10T137/87539

Abstract: The valve (101) comprises a valve body (103) with a fluid inlet (107), a fluid outlet (109), an inner cavity (105) and an outer cavity (141) at least partly surrounding the inner cavity. The outer cavity (141) is in fluid communication with the fluid inlet (107) and with the inner cavity (105) and the inner cavity (105) is in fluid communication with the fluid outlet (109). A flow splitter (143, 145) is provided, forming at least two flow passages (141A, 141B) in the outer cavity (141).

Abstract translation: 阀（101）包括具有至少部分地围绕内腔的流体入口（107），流体出口（109），内腔（105）和外腔（141）的阀体（103）。 外腔（141）与流体入口（107）流体连通，并且内腔（105）和内腔（105）与流体出口（109）流体连通。 设置有分流器（143,145），在外腔（141）中形成至少两个流动通道（141A，141B）。