公开(公告)号：US20180283177A1

公开(公告)日：2018-10-04

申请号：US15562378

申请日：2016-03-21

申请人： TURBODEN SPA

发明人： Roberto BINI ,  Mario GAIA ,  Davide COLOMBO

IPC分类号： F01D5/06 ,  F01D25/24 ,  F01K23/10 ,  F01K25/10

摘要： A turbine of an organic Ranking cycle (ORC) is described. The turbine includes a shaft supported by at least two bearings and a plurality of axial stages of expansion, defined by arrays of stator blades alternated with arrays or rotor blades. The rotor blades are sustained by corresponding supporting disks. A main supporting disk is directly coupled to the shaft in an outer position with respect to the bearings, and the remaining supporting disks are constrained to the main supporting disk, and one to the other in succession, but not directly to the shaft. Some of the remaining supporting disks are constrained to the main supporting disk and cantileverly extend from the same side of the bearings that support the shaft, so that the center of gravity of the rotor part of the turbine is shifted more towards the bearings.

公开(公告)号：US10724396B2

公开(公告)日：2020-07-28

申请号：US15742098

申请日：2016-06-23

申请人： TURBODEN SPA

发明人： Joseph Bonafin ,  Isaia Casali ,  Marco Del Carria ,  Pietro Girardi

IPC分类号： F01D21/00 ,  F01K25/08 ,  F01K13/00 ,  G01F23/00

摘要： Method for the calculation of the working fluid loss in an organic Rankine cycle plant, comprising at least one evaporator (1), a preheater (5), a turbine (2), a condenser (3), a pump (4), a collecting well (7) and a process piping (8), wherein said working fluid, when the plant is stopped, is in part present in known volumes inside the plant and partly drained in at least a storage tank (6) comprising at least three rooms or volumes: —a first volume (Vck) for storing the fluid to be measured, —a second volume (Vc) having a restricted section for measuring the volume of fluid stored in said first volume (Vck), —a third volume (Vckd) containing the portion of the fluid already measured, wherein, in said method, the working fluid loss of the plant is calculated as the difference between the fluid amount measured in two different instants of time.

公开(公告)号：US10526892B2

公开(公告)日：2020-01-07

申请号：US15562378

申请日：2016-03-21

申请人： TURBODEN SPA

发明人： Roberto Bini ,  Mario Gaia ,  Davide Colombo

IPC分类号： F01D5/06 ,  F01D25/24 ,  F01K23/10 ,  F01K25/10

摘要： A turbine of an organic Ranking cycle (ORC) is described. The turbine includes a shaft supported by at least two bearings and a plurality of axial stages of expansion, defined by arrays of stator blades alternated with arrays or rotor blades. The rotor blades are sustained by corresponding supporting disks. A main supporting disk is directly coupled to the shaft in an outer position with respect to the bearings, and the remaining supporting disks are constrained to the main supporting disk, and one to the other in succession, but not directly to the shaft. Some of the remaining supporting disks are constrained to the main supporting disk and cantileverly extend from the same side of the bearings that support the shaft, so that the center of gravity of the rotor part of the turbine is shifted more towards the bearings.

公开(公告)号：US20180202314A1

公开(公告)日：2018-07-19

申请号：US15742098

申请日：2016-06-23

申请人： TURBODEN SPA

发明人： Joseph Bonafin ,  Isaia Casali ,  Marco Del Carria ,  Pietro Girardi

IPC分类号： F01D21/00 ,  F01K13/00 ,  F01K25/08 ,  G01F23/00

CPC分类号： F01D21/003 ,  F01K13/003 ,  F01K25/08 ,  F05D2260/602 ,  F05D2260/606 ,  G01F23/00

摘要： Method for the calculation of the working fluid loss in an organic Rankine cycle plant, comprising at least one evaporator (1), a preheater (5), a turbine (2), a condenser (3), a pump (4), a collecting well (7) and a process piping (8), wherein said working fluid, when the plant is stopped, is in part present in known volumes inside the plant and partly drained in at least a storage tank (6) comprising at least three rooms or volumes: —a first volume (Vck) for storing the fluid to be measured, —a second volume (Vc) having a restricted section for measuring the volume of fluid stored in said first volume (Vck), —a third volume (Vckd) containing the portion of the fluid already measured, wherein, in said method, the working fluid loss of the plant is calculated as the difference between the fluid amount measured in two different instants of time.

公开(公告)号：US20180187566A1

公开(公告)日：2018-07-05

申请号：US15738304

申请日：2016-06-08

申请人： TURBODEN SPA

发明人： Mario GAIA ,  Roberto BINI

IPC分类号： F01D11/00 ,  F01K25/00 ,  F01D11/04 ,  F01D25/16 ,  F01D25/12 ,  F01D25/32

CPC分类号： F01D11/003 ,  F01D11/04 ,  F01D25/12 ,  F01D25/16 ,  F01D25/183 ,  F01D25/32 ,  F01K25/00 ,  F05D2220/30 ,  F05D2240/55 ,  F05D2240/60 ,  F05D2260/20

摘要： A turbine of an organic Ranking cycle ORC is described, the turbine comprising a shaft supported by bearings and a plurality of seals arranged round the shaft for confining the operating fluid expanding in the turbine. The seals define at least four axially consecutive chambers. The operating fluid, with function of barrier fluid, is fed into one of the chambers adjacent to turbine stages; a gas, preferably inert, is fed into one of the chambers adjacent to the bearings, and the corresponding seals are gas seals. This configuration prevents the operating fluid from any kind of contamination by the lubricant used for the bearings, and avoids polluting the environment.