EP1034357B1 - Dampfturbogenerator mit wassergeschmierten lagern und ventilen - Google Patents

Dampfturbogenerator mit wassergeschmierten lagern und ventilen Download PDF

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Publication number
EP1034357B1
EP1034357B1 EP98966767A EP98966767A EP1034357B1 EP 1034357 B1 EP1034357 B1 EP 1034357B1 EP 98966767 A EP98966767 A EP 98966767A EP 98966767 A EP98966767 A EP 98966767A EP 1034357 B1 EP1034357 B1 EP 1034357B1
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EP
European Patent Office
Prior art keywords
steam
shaft
water
steam turbine
oil
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.)
Expired - Lifetime
Application number
EP98966767A
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German (de)
English (en)
French (fr)
Other versions
EP1034357A1 (de
Inventor
Rudolf Thiele
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.)
Siemens AG
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Siemens AG
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Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1034357A1 publication Critical patent/EP1034357A1/de
Application granted granted Critical
Publication of EP1034357B1 publication Critical patent/EP1034357B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/18—Lubricating arrangements
    • F01D25/22—Lubricating arrangements using working-fluid or other gaseous fluid as lubricant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10—Adaptations for driving, or combinations with, electric generators

Definitions

  • the invention relates to a steam turbine set with a steam turbine unit and a work machine unit connected to it to generate electrical power according to the Preamble of claim 4 and a method for operating a Steam turbine set according to the preamble of claim 1.
  • a method for operating a Steam turbine set according to the preamble of claim 1. Such a method is known from document DE 2 105 494.
  • Turbosets are mostly used to generate an electrical Mains whose frequency is 50 Hz (or 60 Hz). With high outputs (about 30 MVA and above) it is economical the steam turbine when using bipolar Generators with speeds of 3000 (or 3600) revolutions to operate per minute. For smaller services, however higher speeds> 3,000 to 16,000 revolutions per minute for the turbine - depending on the output - more economical. There is a reduction between the fast rotating steam turbine and that according to the desired frequency of the Current rotating generator required by means of a gearbox.
  • gearbox shaft not only does the gearbox shaft have to be supported a special lubrication, rather must in particular also the heavily loaded gear teeth of one another gripping tooth flanks are carefully lubricated and cooled.
  • the high speeds and loads require each a selected coolant and lubricant, for which so far practical only oils are available.
  • the object of the invention is with a steam turbine set a steam turbine and a work machine such by the Difficulties caused by lubricants and / or coolants to avoid.
  • the invention is based on the fact that water-hydraulic Control cylinder of the steam supply or regulating valves or other oil-free actuators of these valves the dangers and difficulties posed by oil avoid.
  • the invention provides linear motors to be used as valve actuators.
  • water-cooled bearings are easily suitable, if necessary for lubrication and cooling Amounts of water with sufficient pressure in the camp be fed.
  • the invention also assumes that a gearbox only is required if at the driven by the steam turbine Wave a reduction or translation of the speed he follows. But if it becomes possible, steam turbine and work machine to operate at the same speed, so a Gearboxes are eliminated and those associated with cooling the gearbox There are no problems.
  • the adaptation takes place solution between the generator speed (i.e. the speed of the high - speed steam turbine) to the lower frequency of the electrical current or the network through one to the generator connected frequency converter.
  • the generator speed i.e. the speed of the high - speed steam turbine
  • a gearbox is also not necessary if this corresponding machines to the high speed of the steam turbine be interpreted.
  • the steam turbine can the steam turbine unit and the generator of the work machine unit with one another via a coupling or flanges be connected.
  • the invention assumes that in the steam turbine unit Water can be used as a lubricant and coolant and then the fire hazard associated with the use of oil and avoid the risk of environmental damage from leaks become. In the entire turbo set can therefore on oil and the like be practically dispensed with. Foreign media penetrate then not in the exhaust steam flow of the turbine if the Storage is in an axial outflow and that Water for lubrication or cooling from the water cycle of the Steam power plant is removed.
  • One from a steam turbine driven shaft part and a driving the generator Wave parts are therefore as partial waves in the area between the Units for forming a common wave e.g. by directly coupled or forming a flange a rigid (e.g. one-piece) shaft, in which case the illustrated bearings between steam turbine and work machine by a single Bearings can be replaced.
  • the shaft bearings in the turbine unit becomes an oil-free cycle, namely a water cycle used. Also for the storage of this shaft in the machine unit only oil-free bearings are used.
  • the generator for generating electricity of a desired Frequency provided, for which the generator a frequency converter is connected downstream.
  • the steam turbine can in particular be a linear drive or a similar, at least oil-free drive unit (in particular combined with an electrical or electronic control) can be used.
  • the steam turbine unit can have different designs be and e.g. comprise one or more steam turbines which a steam discharge upwards or downwards (generally: in side Direction) or in the axial direction.
  • a axial outflow is usually with a level installation of Steam turbines with a generator (e.g. also in one line with a gas turbine). Here the generator then coupled to the side of the steam inflow.
  • So oil or some other lubricant can be in the whole Steam turbine kit to be replaced by water.
  • the turbo set preferably contains only oil-free components, because also cooling of stationary parts (e.g. of the frequency converter) possible through other media (e.g. air or water) is.
  • one (or more) water cycle is provided, from which drain water supply ducts to the individual camps. It is also possible that several shaft parts and / or shaft bearings in the steam turbine unit are provided and by a common Water cycle are supplied. Through water drainage channels is used as a coolant and lubricant Water from the shaft bearings is beneficial to the water cycle recycled. With this water cycle you can simultaneously preferably the cooling systems of a generator unit or another machine unit and also the Steam supply to the steam turbine unit can be operated. The same thing applies to a frequency converter, insofar as one is provided and its cooling is required. Also linear drives for actuating the control valves of the steam turbine can, if their cooling is necessary, through the water cycle be supplied.
  • the introduced into the circulating water Thermal energy is preferably generated by a heat exchanger withdrawn.
  • This heat exchanger is replaced by a operated open water circuit, but can also be an air-cooled Be a heat exchanger.
  • the required Cycle water also the steam / water cycle of the power plant be removed.
  • the cycle water is advantageous processed at the same time. Where applicable Wear particles or other contaminants, e.g. originating from the shaft bearing are filtered out.
  • FIG 1 is a steam turbine set in a schematic way shown, which bears the overall reference number 1 and one Steam turbine unit 2 and a generator unit 3 as others Includes work machine unit.
  • Units 2 and 3 are connected by a wave 4.
  • This wave consists of several shaft parts (two partial shafts 41, 42), that rotate at the same speed.
  • the partial shaft 41 leads through the steam turbine unit 2.
  • Inside the steam turbine 20 are the rotor blades 211 of the turbine on this partial shaft 41 attached, of which for better clarity the drawing shows only two pieces.
  • Between Blades 211 are on the turbine wall of the steam turbine 20 still attached the guide vanes 212, of which also only shown two pieces for the sake of clarity are.
  • the partial shaft 42 leads through the generator 30.
  • the Stator 32 Attached to it is the armature 31 of the generator 30, the Stator 32 surrounds the armature 31 in the circumferential direction and in Housing of the generator 30 is located.
  • the two partial waves 41 and 42 of the shaft 4 are connected to one another by flanges 43.
  • This frequency converter 5 converts the speed and the number of poles the shaft 4 determined output frequency of the generator current into a frequency that corresponds to the required network frequency of the corresponds to the power supply. Delivery of electricity to the power grid through lines 52.
  • the steam driving the turbine 20 is supplied through the steam supply 22.
  • the steam supply is regulated via control valves 221, which in turn have one or more Linear drives 222 and electrical controllers 223 are operated.
  • the shaft 4 is supported by shaft bearings 6. This are designed as plain bearings.
  • a lubricant and coolant for this shaft bearing 6 is water that through a Water supply 70 and a water return 71 are available is provided.
  • the water cycle is kept in motion by a pump 80.
  • the supply of the as a cooling and lubricating medium acting circuit water to the shaft bearings 6 through water supply channels leading from the water circuit 71 72.
  • the circulating water acts as Coolant and lubricant.
  • the sliding friction in the Bearing heat energy dissipated from the cycle water. From the shaft bearings 6, the circulating water becomes the water return 70 supplied via water discharge channels 73.
  • the circulating water of the water cycle can advantageously (70, 71) the cooling of further components of the turbo set take.
  • the circuit water is also used to cool the generator 30 used.
  • the circulation water is via a water supply channel 74 fed into the cooling system 33 of the generator 30 and from there via a water discharge channel 75 to the water return 70 fed.
  • a water supply channel 76 circulating water supplied and this via a water drainage channel 77 the water return 71 is supplied.
  • the cooling of the frequency converter 5 is effected in this way. Its cooling system (not shown) becomes circulating water supplied via a water supply channel 78 and via a water discharge channel 79 returned the water return 71.
  • the circulation water (70, 71) is cooled by a Heat exchanger 8 by releasing the thermal energy of the cycle water to an open exchanger water circuit 81.
  • the cooling of the Circulating water also through an air-cooled heat exchanger 9 done.
  • the cooling water (Not shown) circuit of the corresponding power plant are taken from which is also the water for the production of the Provides turbine steam.
  • the particular advantage of this Variant is that the circulating water in this case treated together with the water from the steam cycle becomes.
  • the embodiment shown in Figure 2 shows an oil-free Steam turbine kit with water as a lubricant and cooling medium with axial steam discharge.
  • the steam turbine set carries as such again the reference number 1.
  • the steam turbine unit 2 with the generator unit 3 through a shaft 4, (namely the two partial shafts 41 and 42) connected.
  • the Partial shafts 41 and 42 are coupled directly to one another via flanges 43.
  • the partial shaft 42 carries an armature in the generator 30 31. Neighboring this is also in the generator 30 contained stator 32.
  • the one generated by generator 30 Electric current is fed via lines 51 to a frequency converter 5 fed to the electrical after frequency conversion Feeds electricity via lines 52 into an electrical network.
  • the sub-shaft 41 has rotor blades within the turbine 20 211 on. Within gaps between the blades 211 are located on the static part of the steam turbine 20 Guide vanes 212.
  • the steam turbine 20 in this embodiment a steam outflow device 23 'through which an axial steam outflow is effected.
  • Such an axial steam outflow especially when installing steam turbines on a level with a generator (e.g. also in a line with a gas turbine). As can be seen in the figure, it becomes generator 30 then on the side of the steam inflow 22 of the steam turbine 20 hitched.
  • Connects to the steam outflow device 23 ' usually a capacitor (not shown here) or a back pressure connection (also not shown) on.
  • a capacitor not shown here
  • a back pressure connection also not shown
  • the supply of the camp 6 with circulating water takes place through Water supply channels 72. Passes through water discharge channels 73 the circulating water in the water return 71.
  • Cooling system 33 of the generator 30 with circulating water via a Water supply channel 74 and a water discharge channel 75 to Food.
  • the cooling of the linear drives is also advantageous 222 - if necessary - and the frequency converter 5, insofar as this is necessary, through the circulating water from the water cycle (70/71).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Hydraulic Turbines (AREA)
  • Control Of Eletrric Generators (AREA)
  • Control Of Turbines (AREA)
  • Sliding-Contact Bearings (AREA)
EP98966767A 1997-11-28 1998-11-26 Dampfturbogenerator mit wassergeschmierten lagern und ventilen Expired - Lifetime EP1034357B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19752946 1997-11-28
DE19752946 1997-11-28
PCT/DE1998/003490 WO1999028599A1 (de) 1997-11-28 1998-11-26 Dampfturbogenerator mit wassergeschmierten lagern und ventilen

Publications (2)

Publication Number Publication Date
EP1034357A1 EP1034357A1 (de) 2000-09-13
EP1034357B1 true EP1034357B1 (de) 2003-09-03

Family

ID=7850197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98966767A Expired - Lifetime EP1034357B1 (de) 1997-11-28 1998-11-26 Dampfturbogenerator mit wassergeschmierten lagern und ventilen

Country Status (11)

Country Link
US (1) US6240730B1 (ko)
EP (1) EP1034357B1 (ko)
JP (1) JP4213862B2 (ko)
KR (1) KR100561796B1 (ko)
CN (1) CN1119508C (ko)
AT (1) ATE248983T1 (ko)
BR (1) BR9815069A (ko)
CZ (1) CZ296581B6 (ko)
DE (1) DE59809513D1 (ko)
PL (1) PL195761B1 (ko)
WO (1) WO1999028599A1 (ko)

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DE10236326A1 (de) * 2001-08-17 2003-03-06 Alstom Switzerland Ltd Gasspeicherkraftanlage
JP2003097212A (ja) * 2001-09-21 2003-04-03 Honda Motor Co Ltd 回転流体機械
DE10216953B4 (de) * 2002-04-17 2006-02-23 Daimlerchrysler Ag Vorrichtung und Verfahren zur Versorgung einer Brennstoffzelle mit Prozessluft und deren Verwendung
JP4286062B2 (ja) * 2003-05-29 2009-06-24 株式会社荏原製作所 発電装置および発電方法
CN101571055B (zh) * 2003-07-24 2011-12-21 株式会社日立制作所 气体涡轮发电设备的运转方法
US20050187934A1 (en) * 2004-02-24 2005-08-25 Covelight Systems, Inc. Methods, systems and computer program products for geography and time monitoring of a server application user
EP1619355A1 (de) * 2004-07-20 2006-01-25 Siemens Aktiengesellschaft Lager und Dichtungsanordnung in einer Dampfturbine
ITMI20042484A1 (it) 2004-12-23 2005-03-23 Nuovo Pignone Spa Turbogeneratore
DE102006015639A1 (de) 2006-04-04 2007-10-11 Mtu Aero Engines Gmbh Strahltriebwerk mit Generatoreinheit
JP2008008218A (ja) * 2006-06-29 2008-01-17 Ebara Corp 発電装置及びその運転方法
EP2104929A4 (en) * 2006-11-08 2009-11-04 Avraham Bakal SYSTEM AND METHOD FOR AN AUTOMATIC PARKING CLOCK
JP2008175212A (ja) * 2008-04-09 2008-07-31 Ebara Corp タービン発電機
EP2136035A1 (de) * 2008-06-16 2009-12-23 Siemens Aktiengesellschaft Betrieb einer Gas- und Dampfturbinenanlage mittels Frequenzumrichter
US9803549B2 (en) * 2011-02-28 2017-10-31 Ansaldo Energia Ip Uk Limited Using return water of an evaporative intake air cooling system for cooling a component of a gas turbine
US9689281B2 (en) * 2011-12-22 2017-06-27 Nanjing Tica Air-Conditioning Co., Ltd. Hermetic motor cooling for high temperature organic Rankine cycle system
CN102733447B (zh) * 2012-07-06 2013-10-30 东南大学 高速水轴承智能供水装置
CN103397919B (zh) * 2013-08-13 2016-01-06 中国电力工程顾问集团华东电力设计院有限公司 工频发电机调速的纯凝式小汽轮机驱动给水泵系统及方法
CN103397918B (zh) * 2013-08-13 2016-03-16 中国电力工程顾问集团华东电力设计院有限公司 变频发电机调速的背压式小汽机驱动风机系统及方法
US20160047307A1 (en) * 2014-08-15 2016-02-18 General Electric Company Power train architectures with low-loss lubricant bearings and low-density materials
EP3578765B1 (de) * 2018-06-08 2022-06-22 Fludema GmbH Betriebsverfahren für einen turbosatz und für eine niederdruckdampfturbinenanlage und niederdruckdampfturbinenanlage
CN112833189B (zh) * 2020-12-30 2022-05-10 东方电气集团东方汽轮机有限公司 一种汽轮给水泵轴端密封结构
CN113074023B (zh) * 2021-04-12 2022-11-11 哈尔滨工业大学 一种无油润滑高功率密度零蒸汽泄露汽轮机

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Also Published As

Publication number Publication date
EP1034357A1 (de) 2000-09-13
WO1999028599A1 (de) 1999-06-10
BR9815069A (pt) 2000-10-03
CN1119508C (zh) 2003-08-27
JP2001525512A (ja) 2001-12-11
US6240730B1 (en) 2001-06-05
PL341027A1 (en) 2001-03-26
KR20010032535A (ko) 2001-04-25
CZ20001940A3 (cs) 2000-11-15
DE59809513D1 (de) 2003-10-09
CZ296581B6 (cs) 2006-04-12
ATE248983T1 (de) 2003-09-15
KR100561796B1 (ko) 2006-03-21
PL195761B1 (pl) 2007-10-31
JP4213862B2 (ja) 2009-01-21
CN1280649A (zh) 2001-01-17

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