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WO2017202549A1 - Procédé de chauffage d'une soupape - Google Patents

Procédé de chauffage d'une soupape Download PDF

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Publication number
WO2017202549A1
WO2017202549A1 PCT/EP2017/059476 EP2017059476W WO2017202549A1 WO 2017202549 A1 WO2017202549 A1 WO 2017202549A1 EP 2017059476 W EP2017059476 W EP 2017059476W WO 2017202549 A1 WO2017202549 A1 WO 2017202549A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
quick
control valve
steam
closing
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.)
Ceased
Application number
PCT/EP2017/059476
Other languages
German (de)
English (en)
Inventor
Martin Bennauer
Oliver Stawarski
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to CN201780032279.3A priority Critical patent/CN109196189B/zh
Publication of WO2017202549A1 publication Critical patent/WO2017202549A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F01K13/00—General layout or general methods of operation of complete plants
    • F01K13/02—Controlling, e.g. stopping or starting
    • 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
    • F01D25/08—Cooling; Heating; Heat-insulation
    • F01D25/10—Heating, e.g. warming-up before starting

Definitions

  • a method for warming up a valve The invention relates to an arrangement comprising a steam ⁇ line and a valve disposed in the vapor line control valve having a control valve opening, the control valve is configured such that the control valve allows any interim ⁇ rule position of the control valve opening, further comprising arranged in the steam line quick-closing valve with a quick-closing valve opening, wherein the control valve and the quick-acting valve are connected in series.
  • the invention further relates to a method for warming up a control valve, wherein the control valve is arranged in a Dampflei ⁇ tion and the control valve is designed such that the control valve allows any intermediate position of the control valve opening, wherein in the steam line a quick-acting valve is arranged, wherein the quick - Closing valve is designed such that the quick ⁇ closing valve allows any intermediate position of the quick ⁇ closing valve opening.
  • the quick-acting valve ⁇ generally has two positions, either the completely on or completely closed. Furthermore, the quick ⁇ closing valve is designed such that the closing time of the complete-up position to the fully closed position is as short as possible.
  • control valves must be preheated during a start. This applies especially to the case of a so-called cold start, in which the outlet temperatures are relatively low before a start of the steam power plant.
  • the control valves are preheated in such a way by which is quick-acting valve ⁇ opened under steam, wherein the control valve are the quick-acting valve ⁇ and connected in series. The heating of the control valve via the condensation on the surface.
  • the component voltages of the Frischdampfstellventils not too large, they must be limited by the condensation temperature is limited.
  • the live steam quick-closing valve which is opened to preheat the live steam control valve, only has either a complete or complete function
  • the heating behavior of the control valve is coupled to the live steam pressure.
  • the limitation of the condensation temperature and thereby also the limitation of the component voltages of the live steam control valve takes place by reducing the live steam pressure in the main steam line.
  • the steam generator must be operated in such a way that the live steam pressure is reduced, which requires in practice a vote with comparatively high effort of all trades.
  • the invention has set itself the task of simplifying the starting process of a power plant.
  • Control valve and the quick-acting valve are connected in series, wherein the quick-closing valve is designed such that the quick-closing valve allows any intermediate position of the quick-closing valve opening.
  • the object is further achieved by a method for warming up a control valve, wherein the control valve is arranged in a steam line and the control valve is formed ⁇ such that the control valve allows any intermediate position of the control valve opening, wherein in the steam line, a quick-closing valve is arranged wherein the quick-acting valve is formed such that the
  • Quick-release valve allows any intermediate position of the quick-release valve opening, whereby the rapid closing valve is used to preheat the high-speed valve.
  • the quick-closing valve is designed such that it allows any be ⁇ arbitrary intermediate position of the quick-closing valve opening.
  • the quick-closing valve is equipped as a kind of servo-valve for positioning.
  • the quick-closing valve is moved from the closed position slowly and as a function of the thermal stresses in the live steam control valve to a small position in order to limit the pressure in the valve housing of the control valve.
  • the drain valve of the valve housing must be open, which is anyway the case with cold and cold-warm valves.
  • Another advantage of the invention is that the pressure build-up in the main steam line can be independent of the outlet temperature of the turbine valve. This increases the Flexi ⁇ bility of a steam power plant and reduces the necessary votes ⁇ in project management as well as to exchange signals.
  • a further advantage is that the steam turbine can be approached at higher live steam pressures, that is, a power limitation of a gas turbine, in the event that the power plant is designed as a combined cycle power plant, in bad gas. rem efficiency is no longer necessary for Frischdampfstellventilvorsky.
  • Blockanfahr- time is shortened at a stationary steam turbine and running gas turbine.
  • the steam slide In order to lower the live steam pressure in front of the steam turbine, the steam slide must be closed at the moment. By circulating around the live steam slide, the live steam pressure in front of the steam turbine is built up slowly. After heating the live steam valve, a pressure equalization takes place before the live steam slide can then be opened. This eliminates the slow
  • Figure 1 is a schematic representation of a steam power plant ⁇
  • Figure 2 is a schematic representation of a warm-up regulator.
  • the assembly 2 includes a steam pipe 3 and a valve disposed in the vapor line 3, the control valve 5.
  • the control ⁇ valve 5 has a control valve opening, the control valve 5 is designed such in that the control valve 5 permits any intermediate position of the control valve opening.
  • the arrangement 2 comprises a arranged in the steam line 3 quick- closing valve 4.
  • the quick- closing valve 4 has a quick- closing valve opening, wherein the control ⁇ valve 5 and the quick- closing valve 4 are connected in series.
  • the quick-closing valve 4 is designed such that the quick-closing valve 4 allows any intermediate position of the quick-closing valve opening.
  • the steam line 3 is fluidically connected to a steam generator 6.
  • steam is produced, which has comparatively ⁇ as high temperatures and pressures.
  • This steam flows through the steam line 3 and the series-connected control valve 5 and quick-action valve 4 to an inlet rich 7 a steam turbine 8.
  • the steam turbine 8 includes z. B. a high pressure, medium pressure or low pressure turbine part. In the figure 1 is the sake of clarity, the steam turbine 8 without sub-turbines such. B. high-pressure, medium-pressure or low-pressure turbine sections.
  • Steam turbine 8 includes a rotatably mounted rotor (not shown).
  • the thermal energy of the steam generated in the steam generator 6 is converted into rotational energy converts ⁇ of the rotor.
  • the rotor is connected to a generator 9 in order to transmit torque.
  • the generator 9 generates electrical energy with which an electrical supply network can be supplied.
  • the steam flows over a white ⁇ tere steam line 11 to a condenser 12.
  • the condenser 12 the steam condenses into water and is led back to the steam generator 6 via a pump. 13
  • the control valve must be 5 geeig ⁇ net warmed up. According to the invention, this is done by a method for warming the control valve 5, wherein the control valve 5 is arranged in the steam line 3 and the
  • Control valve 5 is formed such that the control valve 5 allows any intermediate position of the control valve opening, wherein in the steam line 3, a quick-closing valve 4 is arranged, the quick-closing valve 4 is formed such that the quick-closing valve 4 allows any intermediate position of the quick-closing valve opening , wherein the quick-closing valve 4 is used for preheating the Stellven ⁇ tils 5. This is done by the
  • Quick-closing valve 4 is opened from a closed position as a function of the thermal stress in the control valve 5.
  • the quick-closing valve 4 is geöff ⁇ net such that the thermal stress in the control valve 5 is below a limit. Furthermore, the quick-acting valve 4 operated, that the thermal load in the control valve 5 is reduced.
  • FIG. 2 shows an illustration of a warm-up regulator for the control valve 5.
  • a target value 14 representing the maximum component Tempe ⁇ raturdifferenz compared with an actual value 15, being subtracted from the target value 14, the actual value 15 °.
  • the actual value 15 shows the actual component temperature difference.
  • the created from the target value 14 and the actual value 15 is a controller 17 which is configured as a PI-Anmérmregler supplied.
  • the controller 17 generates a manipulated variable 18.
  • This manipulated variable 18 is fed to a controlled system 19.
  • a controller 22 which is designed as a P-position controller.
  • the controller 22 ermit ⁇ telt a manipulated variable 23.
  • This further control value 23 is supplied to a valve drive 24th
  • Further influencing variables in the controlled system 19 are a valve characteristic 25, a

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Turbines (AREA)

Abstract

L'invention concerne un ensemble et un procédé de chauffage d'une soupape de réglage (5), l'agencement comprenant une soupape à fermeture rapide (4) et une soupape de réglage (5) agencées en série dans une conduite de vapeur (3), la soupape à fermeture rapide (4) étant réalisée sous la forme d'une servosoupape et utilisée pour le préchauffage de la soupape de réglage (5).
PCT/EP2017/059476 2016-05-23 2017-04-21 Procédé de chauffage d'une soupape Ceased WO2017202549A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201780032279.3A CN109196189B (zh) 2016-05-23 2017-04-21 用于加热阀的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16170764.1A EP3249183A1 (fr) 2016-05-23 2016-05-23 Procédé destiné au chauffage d'une soupape
EP16170764.1 2016-05-23

Publications (1)

Publication Number Publication Date
WO2017202549A1 true WO2017202549A1 (fr) 2017-11-30

Family

ID=56117482

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/059476 Ceased WO2017202549A1 (fr) 2016-05-23 2017-04-21 Procédé de chauffage d'une soupape

Country Status (3)

Country Link
EP (1) EP3249183A1 (fr)
CN (1) CN109196189B (fr)
WO (1) WO2017202549A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023203690A1 (de) 2023-04-21 2024-10-24 Siemens Energy Global GmbH & Co. KG Verfahren zum Anwärmen von Einströmventilen von Turbinen und Schnellschlussventil zum Durchführen des Verfahrens

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003093653A1 (fr) * 2002-05-03 2003-11-13 Alstom Technology Ltd Turbine a vapeur
EP1775429A1 (fr) * 2005-10-12 2007-04-18 Siemens Aktiengesellschaft Procédé pour chauffer und turbine à vapeur
EP2351913A1 (fr) * 2010-01-12 2011-08-03 Siemens Aktiengesellschaft Centrale à vapeur
WO2014037386A2 (fr) * 2012-09-10 2014-03-13 Hse Hitit Solar Enerji Anonim Sirketi Système d'énergie solaire
EP2918797A1 (fr) * 2014-03-12 2015-09-16 Siemens Aktiengesellschaft Procédé destiné au fonctionnement d'une centrale à vapeur

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201218519Y (zh) * 2008-04-28 2009-04-08 宝山钢铁股份有限公司 煤、气混烧锅炉再热减温辅助调节装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003093653A1 (fr) * 2002-05-03 2003-11-13 Alstom Technology Ltd Turbine a vapeur
EP1775429A1 (fr) * 2005-10-12 2007-04-18 Siemens Aktiengesellschaft Procédé pour chauffer und turbine à vapeur
EP2351913A1 (fr) * 2010-01-12 2011-08-03 Siemens Aktiengesellschaft Centrale à vapeur
WO2014037386A2 (fr) * 2012-09-10 2014-03-13 Hse Hitit Solar Enerji Anonim Sirketi Système d'énergie solaire
EP2918797A1 (fr) * 2014-03-12 2015-09-16 Siemens Aktiengesellschaft Procédé destiné au fonctionnement d'une centrale à vapeur

Also Published As

Publication number Publication date
EP3249183A1 (fr) 2017-11-29
CN109196189B (zh) 2021-02-05
CN109196189A (zh) 2019-01-11

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