[go: up one dir, main page]

WO1998015793A1 - Systeme de condenseur destine a une centrale thermique a vapeur - Google Patents

Systeme de condenseur destine a une centrale thermique a vapeur Download PDF

Info

Publication number
WO1998015793A1
WO1998015793A1 PCT/EP1997/005487 EP9705487W WO9815793A1 WO 1998015793 A1 WO1998015793 A1 WO 1998015793A1 EP 9705487 W EP9705487 W EP 9705487W WO 9815793 A1 WO9815793 A1 WO 9815793A1
Authority
WO
WIPO (PCT)
Prior art keywords
condenser
steam
cooling
power plant
water pipe
Prior art date
Application number
PCT/EP1997/005487
Other languages
English (en)
Inventor
Wolfgang Henselak
Gerald Twarloh
Michael Wurm
Dennis Ham
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO1998015793A1 publication Critical patent/WO1998015793A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B9/00—Auxiliary systems, arrangements, or devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium

Definitions

  • the invention relates to a condenser system for a steam power plant .
  • a condenser system is typically built into a water-steam loop in a steam power plant having a steam turbine. Such a condenser system serves to condense out steam that is flowing out of the turbine. The resultant condensate remains in the water-steam loop and is later optionally reheated. The condenser system extracts heat from the water-steam loop and is cooled through the use of a coolant.
  • condenser system Due to stringent demands for reliability, such a condenser system is typically constructed redundantly in every respect. Multiple condenser units are therefore provided.
  • the cooling medium is delivered to each of the condenser units through their own lines by their own pumps.
  • a condenser system for a steam power plant comprising a condenser unit; a single cooling-water pipe penetrating the condenser unit; and a redundantly constructed pump system for feeding the single cooling-water pipe.
  • the invention is based on the concept that in order to simplify construction, reduce costs and simplify assembly, the redundancy of components should be reduced to whatever is indispensably necessary.
  • the concept on which the invention is based takes into account the fact that active elements, such as pumps, are much more vulnerable to malfunction than passive elements, such as heat exchangers and supply lines.
  • the pump system is therefore constructed to be redundant, while only a single condenser unit is provided, which is also penetrated by only a single cooling-water pipe.
  • both pumps can advantageously communicate with the single, common cooling-water pipe over the shortest possible route.
  • the pumps are expediently individually disconnectable from the cooling-water pipe through the use of valves .
  • the condenser has only a single cooling-water inlet and a single cooling-water outlet connected to the single cooling- water pipe.
  • Fig. 1 is a diagrammatic, top-plan view of one exemplary embodiment of a steam turbine system according to the invention
  • Fig. 2 is a side-elevational view of the steam turbine system of Fig. 1, as seen along a line II-II of Fig. 1, in the direction of the arrows;
  • Fig. 3 is a diagrammatic and schematic view of a condenser system with two pumps.
  • a steam turbine system 1 which includes a steam turbine 2 with a high-pressure and medium-pressure portion 2a and a low-pressure portion 2b, to which a condenser 4 is connected radially on the downstream side.
  • a preheater unit 6 is disposed on a side of the steam turbine 2 facing the condenser 4.
  • a generator 8 located in the vicinity of the steam turbine 2 can be driven through a steam turbine shaft 7.
  • Both the high-pressure and medium-pressure portion 2a and the low-pressure portion 2b of the steam turbine 2 as well as the condenser 4 and the preheater unit 6 and the generator 8 are each constructed as a module and are moreover disposed flush with the ground.
  • the term "module” should be understood in this case to mean a connectable, transportable component that can be pre-assembled.
  • Each of the aforementioned modules is mounted on a sledlike structure or skid in a non-illustrated manner and can thus be shifted about especially easily.
  • the steam turbine system 1 is part of a non-illustrated steam power plant having a high-pressure preheater, in the form of a module 9, which is likewise disposed flush with the ground on the side of the steam turbine 2 facing the condenser 4.
  • the steam turbine system 1 is connected to a once-through steam generator of the steam power plant in a non-illustrated manner.
  • One such once-through steam generator is described, for instance, in co-pending U.S. Patent Application Serial
  • the steam turbine system 1 may also be connected to a drum-type steam generator.
  • the steam turbine 2, the condenser 4, the preheater unit 6, the generator 8 and the module 9 are disposed in a common power house or turbine hall 10.
  • the generator 8 is connected through a supply line system 11, into which a switch system 12 is incorporated, to a generator transformer 13 which is disposed outside the turbine hall 10 and which serves to transform electrical voltage furnished by the generator 8 to a higher level .
  • Fig. 2 is a side view of the turbine hall 10, showing the disposition of the steam turbine 2, the condenser 4 and the preheater unit 6 flush with the floor.
  • the condenser 4 is radially connected to the steam turbine 2 on the downstream side.
  • the condenser 4, which is constructed as a module, includes a first condenser element 4a and a second condenser element 4b located above the first. An especially space- saving, compact construction is thus achieved.
  • the module 9 is also mounted on a sled structure or skid.
  • the condenser 4 is part of a condenser system 20 having a cooling pump system 21 which includes two pumps 22, 24.
  • the condenser 4 In order to provide cooling for the condenser 4, the condenser 4 is penetrated by a cooling-water pipe 26, which enters the condenser 4 in a cooling-water inlet 28 and leaves the condenser at a cooling-water outlet 30. Expansion elements 32 which are also provided compensate for thermal expansion of the cooling-water pipe 26.
  • the cooling-water pipe 26 is acted upon through the use of the pump system 21 by a cooling medium, such as sea water or fresh water from a still or flowing body of water.
  • a cooling medium such as sea water or fresh water from a still or flowing body of water.
  • the pump system 21 is constructed redundantly, so that in the illustrated embodiment, the operation of one of the pumps 22, 24 is adequate to operate the condenser 4.
  • Each of the pumps 22, 24 can be disconnected from or connected to the cooling- water pipe 26 through the use of a respective valve 34, 36.
  • the cooling medium is released at an end 38 of the cooling-water pipe 26, or in other words it is returned, for instance, to an open body of water.
  • the cooling-water pipe 26 has a filter unit 40, in which debris can be filtered out of or separated from the cooling medium.
  • the cooling-water pipe 26 also has a cleaning device 42, which includes a first station 44 for introducing cleaning bodies upstream of the cooling-water inlet 28 and a second station 46 for removing the cleaning bodies after they have passed through the condenser 4.
  • the pipes of the condenser 4 are made of a titanium alloy, which is especially resistant to corrosion or other harmful factors. This further reduces the vulnerability of the condenser 4 to malfunction, so that despite the lack of redundancy, safe and reliable functioning is assured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

Ce système de condenseur (20), destiné à une centrale thermique à vapeur, comprend un condenseur (4) dans lequel pénètre un seul tuyau (26) d'eau de refroidissement, ce tuyau pouvant être alimenté en eau de refroidissement grâce à un système de pompe redondante (21), de manière à simplifier la construction et l'assemblage dudit système.
PCT/EP1997/005487 1996-10-08 1997-10-07 Systeme de condenseur destine a une centrale thermique a vapeur WO1998015793A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US72718296A 1996-10-08 1996-10-08
US08/727,182 1996-10-08

Publications (1)

Publication Number Publication Date
WO1998015793A1 true WO1998015793A1 (fr) 1998-04-16

Family

ID=24921659

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/005487 WO1998015793A1 (fr) 1996-10-08 1997-10-07 Systeme de condenseur destine a une centrale thermique a vapeur

Country Status (1)

Country Link
WO (1) WO1998015793A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881548A (en) * 1971-07-14 1975-05-06 Westinghouse Electric Corp Multi-temperature circulating water system for a steam turbine
US4187146A (en) * 1973-07-11 1980-02-05 Westinghouse Electric Corp. Reduction of radioactive emissions from nuclear-reactor plant
JPS6152586A (ja) * 1984-08-23 1986-03-15 Hitachi Ltd 復水器冷却装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881548A (en) * 1971-07-14 1975-05-06 Westinghouse Electric Corp Multi-temperature circulating water system for a steam turbine
US4187146A (en) * 1973-07-11 1980-02-05 Westinghouse Electric Corp. Reduction of radioactive emissions from nuclear-reactor plant
JPS6152586A (ja) * 1984-08-23 1986-03-15 Hitachi Ltd 復水器冷却装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
M.B. DEVEREUX: "Combined condensor cooling water systems", COMBUSTION, vol. 40, no. 11, May 1969 (1969-05-01), NEW YORK, pages 27 - 31, XP002054220 *
PATENT ABSTRACTS OF JAPAN vol. 010, no. 211 (M - 501) 24 July 1986 (1986-07-24) *

Similar Documents

Publication Publication Date Title
US6920760B2 (en) Device and method for preheating combustibles in combined gas and steam turbine installations
RU2152527C1 (ru) Способ эксплуатации газо- и паротурбинной установки и газо- и паротурбинная установка, работающая по этому способу
US6983585B2 (en) Combined cycle plant
JP4191894B2 (ja) ガス・蒸気複合タービン設備の運転方法とこの方法を実施するためのガス・蒸気複合タービン設備
US5329771A (en) Method for securing the lubrication of bearings in a hermetic high-speed machine
JP2009092372A (ja) 超臨界蒸気複合サイクル及びその方法
EP3047210B1 (fr) Intégration de récupération de chaleur de gaz de fumée
IE902996A1 (en) Deaerator heat exchanger for combined cycle power plant
CN101379272B (zh) 电站设备
CN101893229A (zh) 用于操作蒸汽发生设备的方法和系统
EP0618997B1 (fr) Systeme a vapeur dans une installation a chaudieres multiples
US6029454A (en) Steam-turbine plant
JP3679094B2 (ja) ガス・蒸気複合タービン設備の運転方法とその設備
RU2107826C1 (ru) Парогазовая установка с испарителем деаэратора
WO1998015793A1 (fr) Systeme de condenseur destine a une centrale thermique a vapeur
CN100404799C (zh) 蒸汽轮机设备
JP4090584B2 (ja) コンバインドサイクル発電プラント
JP3222035B2 (ja) 複圧式排熱回収ボイラ給水装置
WO1998015777A1 (fr) Centrale thermique a vapeur
US5519998A (en) Apparatus for introducing feed water into a combined-cycle power station
JP2002371807A (ja) タービン設備及び蒸気変換装置
JP2923122B2 (ja) 原子力発電プラントのドレン回収装置
EP0704860A1 (fr) Condenseur de vapeur à circulation naturelle pour systèmes de protection de réacteurs nucléaires
EP1429074B1 (fr) Système et procédé pour alimenter en eau une installation à turbines à vapeur
CN113175366B (zh) 一种实现机炉解耦的母管制热力系统以及运行方法

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): BR CA CN ID JP KR KZ MX RU TR UA US VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 1998517169

Format of ref document f/p: F