EP3592977B1 - Application d'une turbopompe à un circuit fluidique, notamment à und circuit fermé en particulier de type à cycle de rankine - Google Patents

Application d'une turbopompe à un circuit fluidique, notamment à und circuit fermé en particulier de type à cycle de rankine Download PDF

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Publication number
EP3592977B1
EP3592977B1 EP18706447.2A EP18706447A EP3592977B1 EP 3592977 B1 EP3592977 B1 EP 3592977B1 EP 18706447 A EP18706447 A EP 18706447A EP 3592977 B1 EP3592977 B1 EP 3592977B1
Authority
EP
European Patent Office
Prior art keywords
pump
turbopump
turbine
application
closed circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18706447.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3592977A1 (fr
Inventor
Philippe Pagnier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IFP Energies Nouvelles IFPEN
Enogia SA
Original Assignee
IFP Energies Nouvelles IFPEN
Enogia SA
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Publication date
Application filed by IFP Energies Nouvelles IFPEN, Enogia SA filed Critical IFP Energies Nouvelles IFPEN
Publication of EP3592977A1 publication Critical patent/EP3592977A1/fr
Application granted granted Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/04—Units comprising pumps and their driving means the pump being fluid driven
    • F04D13/043—Units comprising pumps and their driving means the pump being fluid driven the pump wheel carrying the fluid driving means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps

Definitions

  • the present invention relates to the application of a turbopump to a fluidic circuit, in particular to a closed circuit, in particular of the Rankine cycle type.
  • a turbopump is a machine which comprises a turbine and a pump (or a compressor) so that part of the energy recovered by the turbine drives the pump (or the compressor).
  • the turbine and the pump (or the compressor) are mounted at the ends of a single rotating shaft.
  • This machine is provided with lubrication bearings generally placed on the central part of the rotating shaft.
  • the turbine and the pump (or the compressor) are mounted at the ends of this rotating shaft, which requires, on the one hand, relatively long shafts and, on the other hand, a sealing system making it possible to separate the system from effluent lubrication.
  • turbopump will be used for a machine which includes both a turbine and a pump and a turbine and a compressor and the term “pump” will relate both to a pump and to a pump. a compressor.
  • the turbine and the pump are nested one inside the other in such a way that the channels of the turbine and those of the pump are also nested inside each other around the rotating shaft, this which makes it possible to significantly reduce the axial length of the machine.
  • the present invention proposes to further reduce the length of the rotating shaft and therefore the size of the turbopump.
  • the present invention relates to a turbopump comprising a fixed casing comprising a pump with a pump rotor comprising pump vanes and a turbine housing a turbine rotor carrying turbine vanes, characterized in that the turbopump comprises a rotor turbine placed coaxially around the rotor of the pump on the same plane perpendicular to the axis of said rotors.
  • the pump rotor may comprise radial fins bearing on their ends a circumferential belt.
  • the circumferential belt may carry radial turbine rotor vanes disposed coaxially and above the pump rotor vanes.
  • the radial ends of the turbine rotor blades may carry a closed circumferential band substantially coaxial with the belt.
  • the belt may include means for sealing with the fixed casing.
  • the sealing means may comprise a set of labyrinths at each end of the belt.
  • the turbopump has the characteristic of comprising a turbine which is placed on the periphery of the pump.
  • the turbine and the pump, and therefore the turbine and pump rotors are thus both coplanar, because placed on a plane perpendicular to the rotation shaft of the machine, and coaxial, since they are both in rotation. around the same axis of rotation.
  • the X axis of the orthonormal (X, Y, Z) coordinate system of the figure is both the axis of the turbine rotor and the axis of the pump rotor.
  • the turbine and pump rotors are on the same plane, parallel to the YZ plane of the orthonormal (X,Y,Z) frame, the YZ plane of the frame being orthogonal to the X axis.
  • the turbopump 10 comprises a fixed casing 12 which houses the rotating part 14 of a pump 16 (or pump rotor) and the rotating part 18 of a turbine 20 (or turbine rotor).
  • the pump rotor comprises a cylindrical shaft 22 connected at one end to a hub 24 of substantially frustoconical shape with a circumferential wall 26 concave.
  • This wall carries a multiplicity of fins 28 projecting radially from the wall and regularly spaced on the outer periphery of this wall.
  • the fins comprise a leading edge 30 at a distance from the free end of the hub 24, a trailing edge 32 at a distance from the base of the tapered hub 24, and a radial outer end 34 of curvature substantially identical to that of the wall. dished 26.
  • a curved circumferential belt 36 is placed, advantageously by hooping, on the radial ends 34 of the fins, in particular to reduce losses due to flows.
  • This pump rotor is placed in the fixed casing 12 which comprises an axial bearing 38 for receiving the shaft 22 of the pump rotor, a sealing system 39 associated with the bearing 38, an axial inlet 40 of a fluid in regard of the hub 24 and which is coaxial with the bearing while being placed upstream of the fins, and a radial fluid outlet 42 which is in communication with the downstream part of these fins.
  • This outlet 42 is advantageously in the form of a volute to direct the fluid towards the device that it must supply.
  • the pump thus comprises the shaft 22, the hub 24 with the concave wall 26, the fins 28, the belt 36, and a portion of the fixed casing with the bearing 38, the fluid inlet 40 and the fluid outlet 42.
  • the belt 36 carries, on the face opposite the belt carrying the fins 28 of the pump, a multiplicity of fins 44 projecting radially and regularly spaced around the outer circumference of this belt. These fins constitute the fins of the turbine and are coaxial and substantially in the same radial plane as the fins of the pump.
  • the blades of the turbine comprise a leading edge 46, a trailing edge 48, and a radial outer end 50 of curvature substantially identical to that of the belt.
  • a curved circumferential closed band 52 may be placed, advantageously by shrink fitting, on the radial outer ends 50 of the impeller vanes 44 coaxial with the pump vane belt.
  • the turbine rotor is thus formed by the belt 36, the blades 44 of the turbine and possibly the band 52 of the blades of the turbine being mounted on the peripheral part of the rotor of the pump, thus forming an integral part of this pump rotor. .
  • This turbine rotor is placed in the fixed casing 12 which comprises a fluid inlet 54, advantageously in the form of a volute opposite the leading edge 46, turbine blades 44 and a fluid outlet 56 facing each other. of the trailing edge 48 of these turbine blades.
  • This configuration allows direct drive of the compressor by the turbine through the blades of the turbine and the belt.
  • the turbine can operate without an electric power supply, in particular without an electric motor. It is then driven only by the fluid.
  • the pump may not be driven by a power supply. It then does not require an electric motor and is driven only by the turbine.
  • these sealing means can be a set of labyrinths 58, 60 with, as illustrated by way of example in the figure, a lamella 62 formed at each end of the belt which penetrates into grooves 64, 66.
  • one 66 of the grooves is located between the inlet 54 of the turbine and the outlet 42 of the pump and the other 64 of the grooves is located between the inlet 40 of the pump and the outlet 56 of the turbine.
  • Sealing is improved by ensuring, on the one hand, an equal pressure between the outlet of the pump 42 and the inlet of the turbine 54 (high pressure side), on the other hand, an equal pressure between the inlet of the pump 40 and the outlet of the turbine 56 (low pressure side).
  • the turbopump as described above can be used in numerous fields, such as the oil, aeronautics and automobile fields.
  • This turbopump more particularly finds its application with a closed circuit, in particular of the Rankine 68 cycle type as illustrated in the single figure.
  • This closed Rankine cycle circuit is advantageously of the ORC (Organic Rankine Cycle) type and uses an organic working fluid or mixtures of organic fluids, such as butane, ethanol, hydrofluorocarbons.
  • ORC Organic Rankine Cycle
  • closed circuit can also work with a fluid such as ammonia, water, carbon dioxide...
  • the outlet 42 of the pump is connected to a heat exchanger 70, referred to as the evaporator, through which the working fluid compressed by the pump passes and through which the working fluid emerges from this evaporator in the form of compressed vapour.
  • a heat exchanger 70 referred to as the evaporator
  • This evaporator is also traversed by a hot source 72, in liquid or gaseous form so as to be able to transfer its heat to the working fluid.
  • This hot source makes it possible to vaporize the fluid and can come from various hot sources, such as a cooling liquid from a combustion engine, an industrial process, a furnace, hot gases resulting from a combustion (fumes from an industrial process, a boiler, or a turbine, etc.), a heat flow from thermal solar collectors, etc.
  • the outlet of the evaporator is connected to the inlet 54 of the turbine 20 to admit therein the working fluid in the form of compressed vapor at high pressure, this fluid emerging through the outlet 56 of this turbine in the form of expanded vapor at low pressure.
  • the outlet 56 of the turbine is connected to a cooling exchanger 74, or condenser, which makes it possible to transform the expanded low-pressure steam that it receives into a low-pressure liquid fluid.
  • This condenser is swept by a cold source, usually a flow of ambient air or cooling water, so as to cool the expanded vapor so that it condenses and turns into a liquid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP18706447.2A 2017-03-07 2018-02-12 Application d'une turbopompe à un circuit fluidique, notamment à und circuit fermé en particulier de type à cycle de rankine Active EP3592977B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1751848A FR3063775B1 (fr) 2017-03-07 2017-03-07 Turbopompe pour un circuit fluidique, notamment pour un circuit ferme en particulier de type a cycle de rankine
PCT/EP2018/053453 WO2018162175A1 (fr) 2017-03-07 2018-02-12 Turbopompe pour un circuit fluidique, notamment pour un circuit ferme en particulier de type a cycle de rankine

Publications (2)

Publication Number Publication Date
EP3592977A1 EP3592977A1 (fr) 2020-01-15
EP3592977B1 true EP3592977B1 (fr) 2022-10-19

Family

ID=59070795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18706447.2A Active EP3592977B1 (fr) 2017-03-07 2018-02-12 Application d'une turbopompe à un circuit fluidique, notamment à und circuit fermé en particulier de type à cycle de rankine

Country Status (6)

Country Link
US (1) US10895261B2 (ja)
EP (1) EP3592977B1 (ja)
JP (1) JP7080895B2 (ja)
CN (1) CN110382869B (ja)
FR (1) FR3063775B1 (ja)
WO (1) WO2018162175A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7455706B2 (ja) * 2020-09-04 2024-03-26 三菱重工業株式会社 ポンプ装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE466165C (de) * 1927-08-09 1928-10-01 Escher Wyss Maschf Ag Pumpenanlage mit Elektromotorantrieb und einer mit dem Pumpenlaufrad zu einem Radkoerper vereinigten Hilfswasserturbine
US2238502A (en) * 1939-01-16 1941-04-15 Muir Neil Shaw Pumping apparatus
AU1449876A (en) * 1975-06-09 1977-12-08 Richards Of Rockford Inc Aerator
GB1525342A (en) * 1977-02-14 1978-09-20 Walton Bott A Motor-pump device and a method of lifting a liquid
US4230564A (en) * 1978-07-24 1980-10-28 Keefer Bowie Rotary reverse osmosis apparatus and method
US5876610A (en) * 1997-03-19 1999-03-02 Clack Corporation Method and apparatus for monitoring liquid flow through an enclosed stream
FR2822891B1 (fr) * 2001-03-29 2003-11-28 Gilbert Collombier Dispositif alimente par une chute d'eau et recuperant l'energie d'une partie de ce debit d'eau pour augmenter la pression de l'autre partie de ce debit
US7044718B1 (en) 2003-07-08 2006-05-16 The Regents Of The University Of California Radial-radial single rotor turbine
EP1577493A1 (de) * 2004-03-17 2005-09-21 Siemens Aktiengesellschaft Strömungsmaschine und Rotor für eine Strömungsmaschine
EP1764487A1 (de) * 2005-09-19 2007-03-21 Solvay Fluor GmbH Arbeitsfluid für einen ORC-Prozess
US7828511B1 (en) * 2008-03-18 2010-11-09 Florida Turbine Technologies, Inc. Axial tip turbine driven pump
JP2011106302A (ja) 2009-11-13 2011-06-02 Mitsubishi Heavy Ind Ltd エンジン廃熱回収発電ターボシステムおよびこれを備えた往復動エンジンシステム
DE202010017157U1 (de) * 2010-12-30 2011-03-17 Eckert, Frank Einrichtungen zur Effizienzerhöhung für Radialturbinen in ORC-Anlagen
CH705171A1 (de) * 2011-06-21 2012-12-31 Alstom Technology Ltd Turbinenschaufel mit einem Schaufelblatt aus Verbundwerkstoff und Verfahren zum Herstellen davon.
DE102011107829A1 (de) * 2011-07-01 2013-01-03 Voith Patent Gmbh Pumpturbinenanlage
JP6213194B2 (ja) * 2013-11-29 2017-10-18 セントラル硝子株式会社 熱エネルギーを機械エネルギーへ変換する方法、有機ランキンサイクル装置、及び作動流体を置換える方法

Also Published As

Publication number Publication date
CN110382869B (zh) 2021-09-03
WO2018162175A1 (fr) 2018-09-13
US10895261B2 (en) 2021-01-19
FR3063775A1 (fr) 2018-09-14
JP7080895B2 (ja) 2022-06-06
US20200072222A1 (en) 2020-03-05
CN110382869A (zh) 2019-10-25
EP3592977A1 (fr) 2020-01-15
JP2020509296A (ja) 2020-03-26
FR3063775B1 (fr) 2022-05-06

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