WO2002027152A2 - Dampfturbinenanlage und verfahren zum betreiben einer dampfturbinenanlage - Google Patents
Dampfturbinenanlage und verfahren zum betreiben einer dampfturbinenanlage Download PDFInfo
- Publication number
- WO2002027152A2 WO2002027152A2 PCT/DE2001/003673 DE0103673W WO0227152A2 WO 2002027152 A2 WO2002027152 A2 WO 2002027152A2 DE 0103673 W DE0103673 W DE 0103673W WO 0227152 A2 WO0227152 A2 WO 0227152A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steam
- turbine
- liquid ring
- pump
- vacuum pump
- Prior art date
Links
Classifications
-
- 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
- F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
- F01K9/02—Arrangements or modifications of condensate or air pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/005—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of dissimilar working principle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
- F04C19/004—Details concerning the operating liquid, e.g. nature, separation, cooling, cleaning, control of the supply
Definitions
- the invention relates to a steam turbine system with a vacuum pump device, which has a jet pump and a liquid ring pump arranged in series one after the other.
- the invention further relates to a method for operating a steam turbine system, in which a system component is vented by means of a vacuum pump device which has a jet pump and a liquid ring pump in series.
- a main turbine plant with several turbine stages is generally provided in order to make the best possible use of the energy content of the steam provided.
- Powerful steam turbine systems generally have a high-pressure, a medium-pressure and a low-pressure stage, a steam heated in a boiler being fed to the high-pressure stage and relaxing in the direction of the low-pressure stage.
- the low-pressure stage has a negative pressure in the order of magnitude between 80 bar and 18 mbar.
- the steam emerging from the low pressure stage is fed to a condenser and condensed there.
- a vacuum pump device which, due to the low final pressure at the low pressure stage, has to reach a vacuum, for example ⁇ 18 mbar. Due to the generally large amount of steam that arises in the steam turbine system, the vacuum pump device must be designed to extract a large amount of gas from a conveying gas from the condenser in order to vent it.
- a secondary turbine for a feed water supply to the boiler is usually also provided, which has, for example, an output of 20 MW compared to an output of the main turbine installation of approximately 1 GW. This sub-turbine is also assigned a condenser that must be vented.
- the respective condenser generally comprises a tube system which is acted upon by the steam to be condensed from the turbine.
- the steam is cooled with the help of water, which is fed to the condenser via a so-called water chamber.
- the water chamber must also be vented. Due to the different requirements for the venting performance with regard to the condenser for the low pressure stage, for the secondary turbine and with regard to the water chamber of the condenser, a separate vacuum pump device is currently provided for each of these three subsystems.
- a vacuum pump device for venting a condenser of a steam turbine, in which a jet pump and a liquid ring pump are provided in series. Air is provided as the propellant for the jet pump.
- Jet pump in front of the liquid ring pump the vacuum to be achieved is improved.
- a negative pressure of approx. 50 mbar can be generated with a liquid ring pump.
- a vacuum of up to ⁇ 15 mbar can be achieved with the overall system.
- CD P- CD J O P- co P e CD H P ⁇ a co 1-5 tr tr
- Jet pump steam is supplied as a propellant, connected to a sealing steam circuit for a turbine shaft sealing system.
- a labyrinth seal is usually provided for sealing the rotating turbine shaft, through which a so-called sealing steam is passed. After leaving the turbine seal, this sealing steam is also referred to as vapor.
- This vapor is a “waste product” generated in the steam turbine system and is therefore particularly suitable for use as a blowing agent under atmospheric pressure without impairing the efficiency of the steam turbine system.
- the supply of the vapor to the vacuum pump device also has the decisive advantage that the vapor is condensed out due to the principle of the liquid ring pump.
- the condensation system for the vapor of steam which is usually provided in a steam turbine system, is therefore not necessary. This saves investment costs and, in addition, the necessary installation requirements are reduced compared to conventional steam turbine systems.
- a gas line for admixing air to form a steam-air mixture as a propellant for the jet pump is connected to the steam line.
- the addition of air also has the advantage that the necessary amount of propellant can be easily adjusted, especially when the amount of vapor is is limited, so that this amount of steam alone is not sufficient as a blowing agent.
- the gas line is expediently connected with its further end to the liquid ring pump on the pressure side and in particular to a separator assigned to the liquid ring pump.
- the air compressed by the liquid ring pump to atmospheric pressure is therefore also used as a propellant. This has the advantage that a separate compressor is not required for feeding to the jet pump.
- the vacuum pump device is connected via a first vent line for venting a condenser, which is provided for the condensation of a process steam emerging from a steam turbine, in particular from a low-pressure part of a steam turbine.
- the vacuum pump device is preferably connected at the same time via a second vent line to a second condenser which is assigned to a secondary turbine. Both the condenser of the main turbine and that of the secondary turbine are therefore preferably vented via the same vacuum pump device. This eliminates the need for several vacuum pump devices assigned to the individual condensers.
- the condenser for a cooling liquid has a water chamber, which is connected to the vacuum pump device, preferably via a third vent line, for its venting.
- a uniform, central vacuum pump system in the form of the vacuum pump device is therefore provided, which provides a vacuum for a large number of components in the steam turbine system. This is the installation effort and also ⁇ co tv> M i ⁇ P>
- P- & p P P- ⁇ JPP ⁇ ⁇ rt ⁇ P P- ⁇ ⁇ ⁇ P- P ⁇ z P- ⁇ i ⁇ PPP P- ⁇ P e ⁇ P tq Z tt P ⁇ tt tr P 3 P- P - ⁇ P- 00 ⁇ tt tt ⁇ 3 3 ⁇ tt P- p: co g 00 P P- tt e Qr tt ⁇ tq p- ⁇ tQ oo rt oo i ⁇ rt tt 00 ⁇ Cd Qr • ö ⁇ P- P - oo 3 tq tQ rt 3 e rt
- P P P- P- P- P- P W O P ⁇ 00 3 00 P- rt P tt CO P ⁇ ⁇ rt tt 00 ⁇ tt ⁇
- the suction power can be varied within certain limits both with regard to the volume quantity and with regard to the negative pressure to be achieved.
- the object is further achieved according to the invention by a method for operating a steam turbine system, in which a system component is vented by means of a vacuum pump device, which has a jet pump and a liquid ring pump in series, whereby the
- Jet pump a in particular excess steam accumulating in the steam turbine system, is supplied as a blowing agent.
- FIG. 1 shows a schematic partial representation of a steam turbine system and FIG. 2 shows a schematic sectional view through a liquid ring pump.
- a steam turbine system 2 according to FIG. 1 has a steam turbine 4, which is, in particular, a low-pressure stage of a 3-stage main turbine system, for example.
- a multi-stage main turbine plant is used, for example, in power plants for energy generation with a power in the gigawatt range.
- a steam D is also supplied as a propellant T via a steam line 48.
- Another valve 44 is connected into the steam line 48.
- the steam line 48 is connected to a sealing steam circuit 50, in which a sealing steam S is passed through a number of turbine seals 52.
- the turbine seals 52 are assigned to the steam turbine 4 and the secondary turbine 16 and are designed as labyrinth seals in order to seal a rotating shaft of the turbines 4, 16 from the environment. After flowing through the turbine seals 52, the sealing steam is also referred to as vapor.
- This steam D is supplied to the jet pump 26 as a propellant T.
- the propellant T is therefore a steam-air mixture, the respective proportions of the steam D or the air L being adjustable via the two valves 44.
- a uniform distribution between steam D and air L is preferably set. If a sufficient amount of steam is available, only steam D can be used as blowing agent T. Since the steam is an excess steam generated in the steam turbine system 2, the overall efficiency of the steam turbine system 2 is not affected by the use of the steam as a propellant T.
- there are also other types of steam in the steam turbine system for example, the steam which arises in the sealing steam system for regulation and is usually discarded in one of the condensers 8, 18.
- Liquid ring pump 28 is in any case cheaper in comparison to a separate pump system for venting the water chamber 22.
- a steam turbine system of this type with a uniform, central vacuum pump device 14 essentially has the following advantages:
- the vapor produced in the sealing steam circuit 50 is preferably passed completely through the vacuum pump device 14. It is not absolutely necessary here that the entire amount of the vapor of the vapor is used as a propellant T for the jet pump 26. By supplying the vapor to the liquid ring pump 28 with the associated separator 38, the vapor is condensed out, so that a separate condensation system for the vapor is not necessary.
- the vacuum pump device 14 is provided as a central vacuum system. This enables simple and inexpensive installation. In particular, there is no need to install several decentralized vacuum pump systems.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Jet Pumps And Other Pumps (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01985738A EP1330604A2 (de) | 2000-09-29 | 2001-09-24 | Dampfturbinenanlage und verfahren zum betreiben einer dampfturbinenanlage |
US10/403,912 US20040003593A1 (en) | 2000-09-29 | 2003-03-31 | Steam turbine plant, and method of operating a steam turbine plant |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10048439.5 | 2000-09-29 | ||
DE10048439A DE10048439C2 (de) | 2000-09-29 | 2000-09-29 | Dampfturbinenanlage und Verfahren zum Betreiben einer Dampfturbinenanlage |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/403,912 Continuation US20040003593A1 (en) | 2000-09-29 | 2003-03-31 | Steam turbine plant, and method of operating a steam turbine plant |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002027152A2 true WO2002027152A2 (de) | 2002-04-04 |
WO2002027152A3 WO2002027152A3 (de) | 2002-06-27 |
Family
ID=7658185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/003673 WO2002027152A2 (de) | 2000-09-29 | 2001-09-24 | Dampfturbinenanlage und verfahren zum betreiben einer dampfturbinenanlage |
Country Status (5)
Country | Link |
---|---|
US (1) | US20040003593A1 (de) |
EP (1) | EP1330604A2 (de) |
CN (1) | CN1466660A (de) |
DE (1) | DE10048439C2 (de) |
WO (1) | WO2002027152A2 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102305558A (zh) * | 2011-08-11 | 2012-01-04 | 福建大源节能环保科技有限公司 | 汽轮机凝汽器真空自吸水代替补水泵的节能系统和方法 |
WO2012052226A3 (de) * | 2010-10-18 | 2013-05-16 | Robert Bosch Gmbh | Vorrichtung zur abwärmenutzung |
EP2801703A1 (de) * | 2013-05-08 | 2014-11-12 | Siemens Aktiengesellschaft | Dampfturbinenanlage mit Sperrdampfleitung |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7640724B2 (en) * | 2006-01-25 | 2010-01-05 | Siemens Energy, Inc. | System and method for improving the heat rate of a turbine |
US8146363B2 (en) * | 2009-02-06 | 2012-04-03 | Siemens Energy, Inc. | Condenser system |
CN101666250B (zh) * | 2009-09-25 | 2012-04-11 | 天津大学 | 采用喷射泵提高低温热源发电能力的系统 |
KR101935336B1 (ko) * | 2011-12-14 | 2019-01-04 | 스털링 인더스트리 컨설트 게엠베하 | 체임버를 배기시키고 상기 체임버로부터 추출된 기체를 정화하는 장치 및 방법 |
CN103047876B (zh) * | 2013-01-05 | 2016-05-11 | 深圳市博众节能工程技术有限公司 | 维持火力发电厂凝汽器真空的装置及其方法 |
US9989060B2 (en) * | 2013-08-08 | 2018-06-05 | Woodward, Inc. | Fuel system with liquid ring pump with centrifugal air/fuel separator |
CN103486002B (zh) * | 2013-10-16 | 2015-09-30 | 于翔 | 一种汽轮机抽真空系统 |
EP2918792A1 (de) * | 2014-03-13 | 2015-09-16 | Siemens Aktiengesellschaft | Dampfkraftanlage mit Spindelleckdampfleitung |
US11512700B2 (en) * | 2015-01-08 | 2022-11-29 | Gardner Denver Nash Llc | Low pressure sealing liquid entry area in a compressor type liquid ring pump |
DE102015104769A1 (de) * | 2015-03-27 | 2016-09-29 | Technische Universität Dresden | Vorrichtung zur Nutzung der Exergie |
CN104913535A (zh) * | 2015-06-08 | 2015-09-16 | 大连冷冻机股份有限公司 | 采用凝汽式汽轮机驱动的大型螺杆制冷压缩机组 |
CN107655351A (zh) * | 2017-10-25 | 2018-02-02 | 湖南和鑫新能源技术有限公司 | 一种具有高低压凝汽器的汽轮机组凝汽器真空维持设备 |
CN109268268B (zh) * | 2018-11-27 | 2023-09-19 | 中国船舶重工集团公司第七0四研究所 | 船用汽轮机一体式集成水环真空泵 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3315879A (en) * | 1966-04-22 | 1967-04-25 | Irving C Jennings | Evacuation system |
US3481529A (en) * | 1966-05-12 | 1969-12-02 | Siemens Ag | Method and apparatus for pumping with a liquid-ring in series with a jet ejector |
US4385868A (en) * | 1979-11-19 | 1983-05-31 | Nash Engineering Company | Systems for evacuating process fluids having condensable and incondensable components |
US4484457A (en) * | 1982-02-11 | 1984-11-27 | Siemens Aktiengesellschaft | Liquid-ring vacuum pump preceded by a precompressor |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1542483A (en) * | 1977-09-19 | 1979-03-21 | Ryaland Pumps Ltd | Air pump units for exhausting steam turbine condensers and for cooling the turbine |
JPS54133617A (en) * | 1978-04-07 | 1979-10-17 | Fuji Electric Co Ltd | Vacuum pump device composed of ejector and liquid ring type vacuum pump |
BE892528A (nl) * | 1982-03-17 | 1982-07-16 | Studiecentrum Kernenergi | Zonneverwarmingsinstallatie |
CH665451A5 (de) * | 1983-07-19 | 1988-05-13 | Bbc Brown Boveri & Cie | Verfahren zum reinigen und entgasen des kondensates/speisewassers im kreislauf einer stromerzeugungsanlage. |
GB2208411B (en) * | 1987-06-25 | 1990-10-31 | Plessey Co Plc | Rotary pump system |
US5446789A (en) * | 1993-11-10 | 1995-08-29 | International Business Machines Corporation | Electronic device having antenna for receiving soundwaves |
US5749227A (en) * | 1995-06-07 | 1998-05-12 | Electric Boat Corporation | Steam seal air removal system |
-
2000
- 2000-09-29 DE DE10048439A patent/DE10048439C2/de not_active Expired - Lifetime
-
2001
- 2001-09-24 EP EP01985738A patent/EP1330604A2/de not_active Withdrawn
- 2001-09-24 WO PCT/DE2001/003673 patent/WO2002027152A2/de active Application Filing
- 2001-09-24 CN CNA018165214A patent/CN1466660A/zh active Pending
-
2003
- 2003-03-31 US US10/403,912 patent/US20040003593A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3315879A (en) * | 1966-04-22 | 1967-04-25 | Irving C Jennings | Evacuation system |
US3481529A (en) * | 1966-05-12 | 1969-12-02 | Siemens Ag | Method and apparatus for pumping with a liquid-ring in series with a jet ejector |
US4385868A (en) * | 1979-11-19 | 1983-05-31 | Nash Engineering Company | Systems for evacuating process fluids having condensable and incondensable components |
US4484457A (en) * | 1982-02-11 | 1984-11-27 | Siemens Aktiengesellschaft | Liquid-ring vacuum pump preceded by a precompressor |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012052226A3 (de) * | 2010-10-18 | 2013-05-16 | Robert Bosch Gmbh | Vorrichtung zur abwärmenutzung |
CN102305558A (zh) * | 2011-08-11 | 2012-01-04 | 福建大源节能环保科技有限公司 | 汽轮机凝汽器真空自吸水代替补水泵的节能系统和方法 |
EP2801703A1 (de) * | 2013-05-08 | 2014-11-12 | Siemens Aktiengesellschaft | Dampfturbinenanlage mit Sperrdampfleitung |
Also Published As
Publication number | Publication date |
---|---|
DE10048439C2 (de) | 2002-09-19 |
CN1466660A (zh) | 2004-01-07 |
DE10048439A1 (de) | 2002-04-25 |
WO2002027152A3 (de) | 2002-06-27 |
US20040003593A1 (en) | 2004-01-08 |
EP1330604A2 (de) | 2003-07-30 |
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