WO2015003898A1 - Système de préchauffage et procédé utilisant un tel système de préchauffage - Google Patents

Système de préchauffage et procédé utilisant un tel système de préchauffage Download PDF

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Publication number
WO2015003898A1
WO2015003898A1 PCT/EP2014/063217 EP2014063217W WO2015003898A1 WO 2015003898 A1 WO2015003898 A1 WO 2015003898A1 EP 2014063217 W EP2014063217 W EP 2014063217W WO 2015003898 A1 WO2015003898 A1 WO 2015003898A1
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WO
WIPO (PCT)
Prior art keywords
heat exchanger
working medium
secondary circuit
turbine
steam
Prior art date
Application number
PCT/EP2014/063217
Other languages
German (de)
English (en)
Inventor
Markus Fichtner
Carsten Graeber
Aurel RANNISTE SACHSSENDAHL
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 WO2015003898A1 publication Critical patent/WO2015003898A1/fr

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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
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
    • F01K7/40—Use of two or more feed-water heaters in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/006—Methods of steam generation characterised by form of heating method using solar heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/32—Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines
    • F22D1/325—Schematic arrangements or control devices therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]

Definitions

  • the invention relates to a pre-heating system according to the preamble of claim 1 and a method of operating a secondary ⁇ cycle with a working medium and with such a preheating.
  • a pre-heating system according to the preamble of claim 1 and a method of operating a secondary ⁇ cycle with a working medium and with such a preheating.
  • the use of solar energy to generate electricity can be based on two different physical principles.
  • photovoltaic systems emitted by the sun electromagnetic radiation can be converted directly into electricity.
  • a solar thermal power plant by the energy of the sun, first a heat transfer medium can be heated, which directly or indirectly drives a steam turbine, which is mechanically coupled to an electric generator.
  • the primary circuit has a solar panel, a heat exchanger group and a pump.
  • the solar field is used to heat a heat transfer medium, which is circulated by the pump in the primary circuit.
  • the heat exchanger group usually has a pre ⁇ warmer, an evaporator and a superheater for transferring the heat energy from the heat transfer medium to the secondary circuit of the solar thermal power plant.
  • the primary circuit may also have a thermal storage.
  • the secondary circuit can be, for example, a water vapor circuit in which there is a steam turbine with a downstream generator.
  • the solar panel may include parabolic trough collectors, Fresnel collectors and / or a solar tower.
  • parabolic Trough collectors is usually used as a heat transfer medium, a thermal oil or in experimental plants already salt melts.
  • Fresnel collectors is usually used as the heat transfer medium water and for a solar tower is usually used as a heat ⁇ carrier medium salt melt (molten salt), air or water.
  • heat ⁇ carrier medium salt melt molten salt
  • other heat transfer media can be used for the stated Solarfeldtechnolo ⁇ gies.
  • Has the heat transfer medium used has a high melting point is in a partial load operation of the power plant when the heat exchange of the primary circuit to the secondary circuit, the Ge ⁇ driving of crystallizing respectively. of solidifying the furnishedträ ⁇ transfer medium. This is partly because the inlet temperature of a Häme ⁇ diums in the heat exchanger group to the secondary circuit ⁇ verrin siege at ei ⁇ nem partial load operation. This typically also varies the heat transfer behavior ⁇ and the return temperature of the heat transfer medium is significantly lower. In order to prevent solidification of the heat transfer medium and thus a failure of a solarthermi ⁇ 's power plant, a correspondingly large safety distance to the crystallization temperature of the heat transfer medium is maintained in the design of the primary circuit.
  • DE 102011056796 Al comprising directed to a solar thermal power plant with a heat transfer medium circuit ei ⁇ ne a liquid heat transfer medium in the circuit leading piping arrangement and a plurality of flow arranged mutually parallel and traversed by the heat transfer medium heat-scale power plant components.
  • the thermal power plant components each have a suction pump which regulates the mass flow and / or volume flow of heat transfer medium and which is arranged in the pipeline arrangement by the respective thermal power plant component, to which the respective thermal power plant component is individually assigned.
  • DE 102010027226 AI relates to a solar power plant part of a solar thermal power plant with solar collector surfaces for heat transfer medium and working medium and a solar thermal power plant.
  • the heat transfer medium is heated in the ParaboIrinnenkollektoren.
  • the hot heat transfer medium releases its energy in a downstream heat exchanger (steam generator) to the feed water coming from the condenser.
  • the generated steam is fed to a steam turbine.
  • the tapping of the high-temperature steam has hitherto taken place from openings in the housing wall of the turbine between the individual stages.
  • compression is limited for mechanical reasons. Especially at partial load thus can not j ede any arbitrary high feed water temperature can be achieved from turbine taps.
  • the invention has for its first object to provide a preheating ⁇ system that prevents the above mentioned problems.
  • a second object is to specify a procedural ⁇ proceedings of operating a secondary circuit with a working medium ⁇ and with such a preheating.
  • the first object is achieved by specifying a preheating system.
  • a preheating system comprises: a primary circuit in which a heat transfer medium can be heated by at least one heating system,
  • a secondary circuit with a working medium which comprises at least one first turbine which can be operated with the working medium and at least one working medium preheater,
  • heat exchanger group at least a first heat exchanger section and the first heat exchanger shear section comprises subsequent second
  • first heat exchanger section and the subsequent second heat ⁇ exchanger section at least a first tap and a first dispensing line is provided with a first control valve for transporting a first partial flow of the working ⁇ medium for Hämediumvor lockerr.
  • the heat exchanger group is also called steam generator be ⁇ draws.
  • the first tapping point is suitable for taking out a first partial flow, usually one
  • the working medium is not so "high quality", that is, not as hot as after the superheater.
  • this pressure is actively influenced.
  • the working medium is ideally taken according to the invention at the lowest possible temperature and the highest possible pressure.
  • the vapor pressure and not the steam temperature is decisive. However, the higher the value of the steam, the worse the efficiency of the system will be.
  • the already overheated and high-quality steam after the superheater use only inferior purposes, eg "only" to maintain the process (ie no solidification of the salt, no unstable evaporation process).
  • the first control valve in the first delivery line the pressure of the support steam can be controlled.
  • the driving style of the power plant can be adjusted.
  • the control valve can also be quite ge ⁇ closed, if no first partial flow is necessary.
  • the invention offers a relatively simple and elegant
  • the invention is Preheating simple design in a secondary circuit implement.
  • the disadvantages, such as described in the prior art the increase in the overall length of the turbine vermie ⁇ . Furthermore, the unnecessarily large safety distance to the crystallization temperature in full-load operation and the concomitant disadvantage of efficiency are circumvented
  • a turbine inlet valve is arranged in front of the turbine in the secondary circuit, wherein the turbine inlet valve and the first control valve are tuned so that for the secondary circuit, a combined operation of Gleittik and Festtikfahrweise is possible.
  • a turbine inlet valve and the first control valve are tuned so that for the secondary circuit, a combined operation of Gleittik and Festtikfahrweise is possible.
  • the partial load efficiency can be additionally increased ⁇ the.
  • Working medium preheater is the vapor pressure and not the
  • the working medium comprises at least partially What ⁇ ser, wherein the first partial flow of the working medium is at least partially evaporated.
  • the first dispensing line has an entry point, wherein the second dispensing line opens into this entry point. Be ⁇ vorzugt the first control valve in the first Abgabelei ⁇ processing and the second control valve in the second discharge line upstream of the entry point are arranged. This simplifies the construction ⁇ A and the control of the first and second partial stream of the working medium.
  • the first heat exchanger section preferably comprises a preheater and an evaporator and the second heat exchanger section. cut a superheater. This ensures a particularly simple and good implementation.
  • the second object is achieved by the on ⁇ task of a method for operating a secondary circuit with a working fluid and with a preheating system according to any one of the above claims, wherein the secondary circuit at least ⁇ includes a Hämediumvor lockerr, and wherein a first partial flow of the working fluid at least temporarily over a heat exchanger arranged between a first portion and a subsequent second heat exchanger section first tapping point and is transported to the civilmediumvor lockerr via a first discharge line with a ers ⁇ th control valve.
  • a front of the turbine which is arranged in the secondary circuit turbine inlet valve and the first control valve are adapted so that it is possible ⁇ a com bined ⁇ driving of sliding pressure and solid printing procedure for the secondary circuit are preferred.
  • FIG. 3 shows a schematic partial section of a power plant with steam generator and associated evaporator drum and a second preheating system according to the invention
  • FIG. 4 shows a schematic partial section of a power plant with a forced-circulation steam generator (Benson) and associated separating bottle and a erfindungsge ⁇ MAESS preheating.
  • Benson forced-circulation steam generator
  • FIG. 1 shows an example of a solar thermal power plant with the invention.
  • a solar thermal power plant can of course also any other hybrid power plant, for example based on renewable energy, which includes a primary circuit and a secondary circuit, are used.
  • 1 shows a circuit diagram for a solar thermal power plant 100, which has a working with a heat transfer medium primary circuit 110 and working with a working medium secondary circuit 150.
  • the primary circuit 110 and the Se ⁇ kundär Vietnamese 150 are connected via a heat exchanger group WEL 130, che can also be referred to as steam generators, thermally coupled to each other.
  • the heat exchanger group 130 has a preheater 132 and an evaporator 134 as a first heat exchanger section.
  • the ⁇ sem follows a second heat exchanger section, namely the superheater 136, after.
  • the illustrated construction of the heat exchanger group 130 is merely a typical example.
  • the heat exchanger group 130 can, of course, also be realized in a different way than shown here concretely.
  • the primary circuit 110 has a solar field 112, with which the electromagnetic radiation of the sun is absorbed and transferred as heat to the heat transfer medium.
  • the solar array 112 may include parabolic trough collectors, Fresnel collectors, and / or a solar tower with which solar energy can be efficiently fed into the primary circuit 110.
  • the primary circuit 110 also has a pump 114, which ensures a suitable circulation of the heat transfer medium in the lines of the primary circuit 110. Furthermore, two three-way valves 12 Ob and 120 c are provided, with which the volume flow of the heat transfer medium between the heat exchanger group 130 / the superheater 136 and a running over a reheater 163 partial flow line can be distributed.
  • the secondary circuit 150 of the power plant 100 comprises a high-pressure steam turbine 162, a generator 164 and a low pressure steam turbine ⁇ 166th Via a line 168, the working medium emerging from the high-pressure steam turbine 162 is supplied to the low-pressure steam turbine 166 via the already mentioned reheater 163.
  • the working medium is water or water. Steam .
  • the working medium water is also referred to in this document as feedwater. Of course, another working medium can be used.
  • a capacitor 180 Downstream of the turbine 166 is a capacitor 180 in which the exiting What is condensed ⁇ serdampf from the low pressure steam turbine 166th Specifically, it must be ensured in the part-load operation of a solar thermal power plant with a molten salt as the heat transfer medium so that the storage sewassereintrittstemperatur in the preheater not excessively drops, to keep the outlet ⁇ temperature of the molten salt above the crystallization point 132 / evaporator 134 / superheater 136th Basically, in steam power plants with a regenerative feedwater preheating, a temperature drop in the preheating section results from the fact that at partial load the bleed pressures at the steam turbine fall (DampfkegeIge- set).
  • the capacitor 180 are connected z. B. two
  • Condensate preheater 182 and 184 in which steam drawn from the low-pressure steam turbine 166 steam is used via various connecting lines to the condensate (also referred to as feed water) already preheat.
  • the secondary circuit 150 also has a mixing preheater and storage tank 186. In conjunction with the working fluid water this is also referred to as feedwater tank 186. Downstream of this is a working medium preheater 190, which is referred to below as feedwater preheater 190.
  • the feedwater preheater 190 may consist of several individual feedwater preheaters (not shown).
  • the achievable feed water temperature correlates with the vapor pressure because the vapor condenses at this pressure level in the feedwater pre-heater 190 and at higher pressure the condensation temperature is also correspondingly higher. Therefore, the pressure level may now be too low at the prior art draws (not shown) from or past the first turbine 162 to still provide adequate feedwater pre-heat. It was recognized that by throttling in front of the turbine, an artificially higher pressure is generated and thus the feedwater temperature can be adjusted. However, the more strongly throttled and / or the higher the value of the steam, the worse the efficiency of the system becomes.
  • the secondary circuit 100 from the superheater 136, a first tapping point 200 and a first ⁇ from delivery conduit 201 leads to the feedwater preheater 190 for supplying a first partial stream of the at least a teilwei ⁇ se vaporized working fluid.
  • the first partial flow a of the vaporized working medium is referred to below as support steam a.
  • the support steam a is inventively ideally at the lowest possible temperature and the highest possible
  • the first tapping point 200 is suitable for Dampfentnähme, as this constructive ⁇ on the basis of eh upcoming change between the heat exchanger surface of the evaporator 134 and the heat exchanger surface of the superheater 136, is easily solvable.
  • the steam is not so "high quality", that is, not as hot as after the superheater.
  • the other partial flow of the working medium wel ⁇ cher comes from the evaporator 134, the superheater 136 is supplied.
  • the mass flow of the support steam a to the preheater 190 can be regulated by the first control valve 210 in the first delivery line 201.
  • the control valve can be completely closed ge ⁇ 210 even when no support steam a is necessary.
  • 162 at least ei ⁇ ne further second bleed location 400 and a further second discharge conduit 401 with a second control valve 410 is sawn vorzugt in the at least first turbine for
  • a second partial flow b (hereinafter referred to as support steam b) provided for feedwater heater 190.
  • the second discharge line 401 opens at an entry point 500 into the first delivery line 201, which is constructively advantageous.
  • the first control valve 210 and the second control valve 410 are upstream of this entry location 500 arranged.
  • a turbine inlet valve 300 is angeord ⁇ net, wherein the turbine inlet valve 300 is designed so that a combined operation of the power plant from Gleit horrtul and Festdruckfahrweise is possible.
  • support steam a and the support steam b will be referred to as support steam for the sake of simplicity.
  • the vapor pressure and not the steam temperature is decisive.
  • the removal of the support according to the invention ⁇ Vapor by the first extraction point 200 before the superheater 136 is therefore particularly well, because you can be ⁇ influences this pressure active and because the steam is still inferior to already superheated steam.
  • a combined operation of sliding and fixed pressure is now possible, so that the efficiency is as high as possible and the process still runs stable. This is not possible with already superheated and high quality steam after the superheater; this is only used to maintain the process; for example, so that no solidification of the salt occurs.
  • FIG 2 now shows a first embodiment of the invention with reference to a section of a primary circuit 110 and a Se ⁇ kundärniklaufes 150 with a drum 50 (drum steam generator).
  • water is used as the working medium.
  • the working medium preheater 190 is again referred to as feedwater preheater 190 for the sake of simplicity.
  • the feedwater first flows from the feedwater preheater 190 through the preheater 132 of the heat exchanger group 130. Subsequently, the water flows into an evaporator drum 50. The water is then circulated in the evaporator 134. In the drum 50 a division takes place in boiling water and saturated steam ⁇ .
  • the boiling water continues to circulate in the evaporator 134 where a portion of it is vaporized.
  • Saturated steam or wet steam continues to flow to the superheater 136, where it is overheated to the final temperture.
  • Erfindungsge ⁇ Frankfurtss a partial flow A at a first bleed location 200 will now be branched off upstream of the superheater 136, and returned to the feedwater preheater 190 via a first discharge line two hundred and first
  • the first delivery line 201 has a regulating valve 210 for controlling the mass flow of the steam stream.
  • the first dispensing device 201 has an entry point 500.
  • the turbine 162 also has a second tapping point 400 for a partial flow b, which reaches via a second delivery line 401 to the entry point 500 and thus to the feedwater pre- heater 190.
  • the second discharge line 401 has a regulating valve 410 for controlling the mass flow of the steam stream.
  • the steam generator can be run to the secondary circuit 110 as being natural circulation or once-through variant ⁇ leads.
  • the natural circulation evaporator bundles are arranged in reasonable ei ⁇ nem hori zontal flue gas duct in the vertical mounting position and connected via downpipes and risers having at least one Dampffromme1.
  • the preheater 190 comprises a further preheater 190a.
  • the first bleed line 201 leads directly to the preheater 190.
  • the preheater 190 is connected downstream of the second preheater 190a.
  • Another possibility is to use a forced-circulation steam generator, which is usually equipped with a separating bottle 600 (FIG. 4). This separation bottle 600 separates z. B. when starting the power plant, the wet steam at the outlet of the evaporator 134 in steam and hot water.
  • a steam line to the superheater 136 From the separating bottle 600 runs at the drawn off ⁇ leadership a steam line to the superheater 136, from which a live steam line to the turbine 162 leads.
  • a partial stream a is branched off at a first tapping point 200 upstream of the superheater 136, and returned to the feedwater pre-heater 190 via a first discharge line 201. Since ⁇ at, the first discharge pipe 201 - as already be ⁇ lateralen- volume regulating the flow of steam a regulating valve 210.
  • the first delivery line 201 has an entry point 500.
  • the turbine 162 ei ⁇ ne second bleed location 400 for a partial flow B which thus passes through a second discharge line 401 to the entry point 500 and to the feedwater 190th
  • the second discharge line 401 has a regulating valve 410 for controlling the mass flow of the steam stream.
  • the invention offers a secure possibility of avoiding the crystallization point of a molten salt in plant operation. This applies in particular to the partial load operation.
  • the partial load efficiency can be additionally increased.
  • the fiction, contemporary ⁇ preheating system is easy to implement constructively in a secondary circuit.
  • the invention thus circumvents the disadvantages described in the prior art.
  • a plurality of taps 200 may be provided between the evaporator 134 and the superheater 136.
  • the steam at the removal is not so "high quality" when removing is like after the superheater / before the steam turbine. This avoids that you already overheated and high quality steam to the superheater set (in terms of efficiency) only for inferior purposes, a ⁇ "only” to maintain the process (no freeze of salt, no unstable evaporation process).
  • a combined operation of sliding and fixed pressure, with the highest possible efficiency and a stable running process is now possible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Control Of Turbines (AREA)

Abstract

L'invention concerne un système de préchauffage comprenant un circuit primaire (110) dans lequel un fluide caloporteur est chauffé par au moins une installation de chauffage (112), un circuit secondaire (150) qui contient un fluide de travail et qui comporte au moins une première turbine (162) apte à fonctionner avec le fluide de travail et au moins une unité de préchauffage de fluide de travail (190). Le circuit primaire (110) et le circuit secondaire (150) sont couplés thermiquement l'un à l'autre par le biais d'un groupe échangeur de chaleur (130). Le fluide de travail peut être chauffé par l'unité de préchauffage de fluide de travail (190) avant d'entrer dans le groupe échangeur de chaleur (130). Le groupe échangeur de chaleur (130) comprend au moins une première section d'échangeur de chaleur et une seconde section d'échangeur de chaleur en aval de la première section d'échangeur de chaleur. Au moins un premier point de dérivation (200) et un premier conduit de dérivation (201), équipé d'une première vanne de réglage (210), sont disposés entre la première section d'échangeur de chaleur et la seconde section d'échangeur de chaleur en aval afin de transporter un premier flux partiel (a) de fluide de travail vers l'unité de préchauffage de fluide de travail (190). En outre, l'invention concerne un procédé pour faire fonctionner un circuit secondaire (150) en utilisant un fluide de travail et un tel système de préchauffage.
PCT/EP2014/063217 2013-07-12 2014-06-24 Système de préchauffage et procédé utilisant un tel système de préchauffage WO2015003898A1 (fr)

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DE102013213680.3 2013-07-12
DE102013213680 2013-07-12

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106322783A (zh) * 2016-08-31 2017-01-11 徐荣吉 聚光式太阳能集热器及其集热液体的流程控制方法
CN106403322A (zh) * 2016-08-31 2017-02-15 徐荣吉 聚光式太阳能集热器及其集热液体的流程控制方法
WO2017161206A1 (fr) 2016-03-16 2017-09-21 Halozyme, Inc. Conjugués contenant des anticorps à activité conditionnelle ou des fragments de liaison à un antigène associés, et procédés d'utilisation
CN108646558A (zh) * 2018-05-10 2018-10-12 湖南省湘电试验研究院有限公司 一种火电机组节能型滑压实时优化方法及系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4336105A (en) * 1979-12-05 1982-06-22 Westinghouse Electric Corp. Nuclear power plant steam system
DE4447044C1 (de) * 1994-12-29 1996-04-11 Hans Wonn Verfahren zur Verminderung der Anfahrverluste eines Kraftwerksblockes
WO2011020776A2 (fr) * 2009-08-21 2011-02-24 Flagsol Gmbh Centrale solaire thermique comprenant un échangeur de chaleur dans la section de préchauffage d'eau d'alimentation, et procédé d'exploitation de cette centrale
EP2312130A1 (fr) * 2009-10-13 2011-04-20 Siemens Aktiengesellschaft Adaptation de la température terminale de préchauffage d'un circuit secondaire de centrale par activation sélective de plusieurs raccordements de prélèvement d'une turbine à vapeur
DE102010027226A1 (de) 2010-05-06 2011-11-10 Siemens Aktiengesellschaft Solarer Kraftwerksteil einer solarthermischen Kraftwerksanlage und solarthermische Kraftwerksanlage mit Sonnenkollektorflächen für Wärmeträgermedium und Arbeismedium
DE102011056796A1 (de) 2011-12-21 2013-06-27 Flagsol Gmbh Solarthermisches Kraftwerk und Verfahren zur Regelung des Wärmeträgermediummassenstroms

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4336105A (en) * 1979-12-05 1982-06-22 Westinghouse Electric Corp. Nuclear power plant steam system
DE4447044C1 (de) * 1994-12-29 1996-04-11 Hans Wonn Verfahren zur Verminderung der Anfahrverluste eines Kraftwerksblockes
WO2011020776A2 (fr) * 2009-08-21 2011-02-24 Flagsol Gmbh Centrale solaire thermique comprenant un échangeur de chaleur dans la section de préchauffage d'eau d'alimentation, et procédé d'exploitation de cette centrale
EP2312130A1 (fr) * 2009-10-13 2011-04-20 Siemens Aktiengesellschaft Adaptation de la température terminale de préchauffage d'un circuit secondaire de centrale par activation sélective de plusieurs raccordements de prélèvement d'une turbine à vapeur
DE102010027226A1 (de) 2010-05-06 2011-11-10 Siemens Aktiengesellschaft Solarer Kraftwerksteil einer solarthermischen Kraftwerksanlage und solarthermische Kraftwerksanlage mit Sonnenkollektorflächen für Wärmeträgermedium und Arbeismedium
DE102011056796A1 (de) 2011-12-21 2013-06-27 Flagsol Gmbh Solarthermisches Kraftwerk und Verfahren zur Regelung des Wärmeträgermediummassenstroms

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017161206A1 (fr) 2016-03-16 2017-09-21 Halozyme, Inc. Conjugués contenant des anticorps à activité conditionnelle ou des fragments de liaison à un antigène associés, et procédés d'utilisation
CN106322783A (zh) * 2016-08-31 2017-01-11 徐荣吉 聚光式太阳能集热器及其集热液体的流程控制方法
CN106403322A (zh) * 2016-08-31 2017-02-15 徐荣吉 聚光式太阳能集热器及其集热液体的流程控制方法
CN108646558A (zh) * 2018-05-10 2018-10-12 湖南省湘电试验研究院有限公司 一种火电机组节能型滑压实时优化方法及系统

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