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EP2686608B1 - Procédé pour faire fonctionner une installation de l'industrie primaire - Google Patents

Procédé pour faire fonctionner une installation de l'industrie primaire Download PDF

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Publication number
EP2686608B1
EP2686608B1 EP12705647.1A EP12705647A EP2686608B1 EP 2686608 B1 EP2686608 B1 EP 2686608B1 EP 12705647 A EP12705647 A EP 12705647A EP 2686608 B1 EP2686608 B1 EP 2686608B1
Authority
EP
European Patent Office
Prior art keywords
steam
buffer store
phase
plant
superheater
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.)
Not-in-force
Application number
EP12705647.1A
Other languages
German (de)
English (en)
Other versions
EP2686608A2 (fr
Inventor
Markus Haider
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.)
Primetals Technologies Austria GmbH
Original Assignee
Primetals Technologies Austria GmbH
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.)
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Publication date
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Publication of EP2686608A2 publication Critical patent/EP2686608A2/fr
Application granted granted Critical
Publication of EP2686608B1 publication Critical patent/EP2686608B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • 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
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/183—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines in combination with metallurgical converter installations
    • 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
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/12—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having two or more accumulators

Definitions

  • the present invention further relates to a plant of the basic industry, which is designed such that, in short, it is operated according to such an operating method.
  • the base part of the plant may be, for example, an LD plant or an electric arc furnace for steelmaking.
  • WO 2010/138 597 A2 is a method of operation for a plant of the basic industry known, wherein a base part of the plant is operated according to a plant cycle.
  • hot exhaust gases are produced in a first phase of the respective plant cycle.
  • a second phase of the respective plant cycle either no hot exhaust gases are produced or the hot exhaust gases are produced in comparison with the first phase only to a significantly reduced extent.
  • the hot exhaust gases are removed in the respective extent in which they arise, via a piping system from the base part of the system.
  • the electric arc furnace process is a batch process in which, on the exhaust side (depending on the furnace design and furnace mode), the emission of thermal power fluctuates once or twice per hour between a maximum value (emission phase) and zero (emission pause). Since the aggregates for converting thermal energy into mechanical energy (typically turbines) are sensitive to large power and temperature variations, and further requires the synchronization of a turbine-driven electric generator with an external network, the turbines need to, once have reached the synchronous speed, be kept at this speed to stably feed electrical energy into the external network can. Energy from the emission phases must therefore be stored in order to be available during the emission breaks.
  • the object of the present invention is to provide possibilities by means of which, in particular, the efficiency in the utilization of the thermal waste heat is increased.
  • the superheater can be sufficiently cooled not only in the first phase, but also in the second phase, of any hot exhaust gases that occur in the second phase, so not overheated.
  • the steam turbine can be operated continuously - ie both in the first and in the second phase - with superheated steam.
  • the buffer memory can be used efficiently without having to forcibly circulate the storage medium of the buffer memory.
  • the operating method according to the invention is, for example, a method for operating an electric arc furnace or an LD plant for steelmaking.
  • the first part of the superheated steam after flowing through the buffer memory with the second part of the superheated steam by means of a arranged between the buffer and the steam turbine second valve means united and the union of the first and second part the superheated steam passed to the steam turbine.
  • the superheated steam taken from the buffer store counter to the loading direction is previously removed from the steam storage device as saturated steam.
  • the buffer memory may be designed in particular as concrete storage.
  • the buffer memory may be formed, for example, as a sand storage or as a liquid salt reservoir, wherein necessary for the circulation of such storage media required conveyors.
  • the first part of the superheated steam is condensed in the first phase after flowing through the buffer memory and fed back to the vapor storage device.
  • the first part of the superheated steam after condensing and prior to feeding to the vapor storage device may be passed through a primer preheater which is installed behind the evaporator means in the piping system with respect to the piping system.
  • the superheated steam removed from the buffer reservoir beforehand be removed as hot water from a feed line serving to feed the steam storage device with hot water or tapped behind the primary preheater.
  • the removal of hot water from the feed line can be done for example by means arranged in the feed line fourth valve means.
  • a fifth to ninth valve device are preferably present for guiding the hot water, the saturated steam and the superheated steam.
  • the fifth valve means is disposed between the buffer storage preheater, the buffer steam drum and the latent heat storage.
  • the sixth valve means is disposed between the buffer storage steam drum, the latent heat storage and the buffer storage superheater.
  • the seventh valve device is arranged in a connecting line connecting the basic preheater and the buffer steam drum.
  • the eighth valve device is arranged in a connecting line, via which, bypassing the sixth valve device, the buffer storage steam drum and the buffer storage superheater are connected to one another.
  • the ninth valve device is arranged in a line leading from the buffer steam drum to a connecting line leads, via which the fifth valve means and the latent heat accumulator are interconnected.
  • the saturated steam withdrawn in the second phase of the steam storage device is preferably conducted completely through the superheater.
  • valve devices can be designed as proportional valve devices.
  • the valve means - with the exception of the seventh and eighth valve means - may further be designed as three-way valves.
  • the object is further achieved by a plant of the basic industry, wherein the plant - in short - is designed such that it is operated in accordance with an operating method according to the invention.
  • FIG. 1 shows in simplified representation a plant of the basic industry.
  • the system has a base part 1.
  • the base part 1 is according to FIG. 2 operated in one plant cycle.
  • the system cycle has at least a first phase P1 and a second phase P2.
  • the first phase P1 of the respective plant cycle arise due to the expiring in the base part 1 technical process of the basic industry in the base part 1 hot exhaust gases.
  • the second phase P2 of the respective system cycle in the base part 1 no hot exhaust gases.
  • the exhaust gases arise, but only to a much lesser extent than in the first phase P1.
  • a maximum of one sixth of the amount of hot exhaust gases arises, as in the average of the first phase P1.
  • the phases P1, P2 are determined as needed.
  • the duration of the phase P2 in the total time of the system cycle is a maximum of 30%, in particular a maximum of 25%.
  • first phases P1 and second phases P2 are also simplified.
  • the number of first phases P1 and second phases P2 is also simplified.
  • the number of first phases P1 and second phases P2 is also simplified.
  • the number of first phases P1 and second phases P2 is also simplified.
  • the number of first phases P1 and second phases P2 is also simplified.
  • the number of first phases P1 and second phases P2 is also simplified.
  • the number of first phases P1 and second phases P2 to be greater than one during a plant cycle. This will be explained in more detail below with reference to a typical base part 1, namely a base part 1 in the form of an electric arc furnace.
  • the times mentioned can vary to a certain extent from base part 1 to base part 1 and also from plant cycle to plant cycle.
  • the hot exhaust gases are removed via a piping system 2 from the base part 1 and discharged to the outside air.
  • the removal of the hot exhaust gases takes place at any time to the extent to which the hot exhaust gases are incurred in each case, ie in the first phase P1 in a large scale, in the second phase P2 to a small extent or not at all.
  • the hot exhaust gases Before the hot exhaust gases are released to the outside air, they must be filtered. Filtering takes place in a filter 3. At the time of filtering, the temperature of the hot exhaust gases may not exceed about 130 ° C. It is therefore necessary to cool the hot exhaust gases.
  • FIG. 3 the structure of a water-steam cycle and its integration into the pipeline system 2 will be explained below. Furthermore, in conjunction with FIG. 3 the operation of the water-steam cycle in the first phase P1 of the system cycle explained. Thereafter, in conjunction with FIG. 4 the operation of the water-steam cycle in the second phase P2 of the system cycle explained.
  • a first evaporator element 5, a superheater 6, a second evaporator element 7 and a Grundvor lockerr 8, in the in FIG. 3 sequence shown are installed in the piping system 2.
  • the evaporator elements 5, 7 together correspond to an evaporator device.
  • the evaporator elements 5, 7 remove hot water at least in the first phase P1 of a steam drum 9, evaporate it by means of the hot exhaust gases and feed the vaporized hot water back into the steam drum 9 as saturated steam.
  • the saturated steam is fed via a line 10 to a steam reservoir 11.
  • a proportional valve 12 is arranged in the line 10, a proportional valve 12 is arranged. The opening state of the proportional valve 12 is controlled by the pressure prevailing in the line 10 on the input side of the proportional valve 12.
  • valve device 14 is preferably designed as a proportional valve device. It can according to the presentation of FIG. 3 be designed in particular as a three-way valve. Said valve device 14 corresponds to a third valve device in the sense of claim 4. The activation of the third valve device 14 in the first phase P1 is independent of the extent and the temperature of the resulting exhaust gas. In the first phase, the third valve device 14 is controlled in such a way that that the saturated steam is passed through the superheater 6 in its entirety. This is in FIG. 3 indicated by a corresponding arrow A.
  • the saturated steam is superheated by means of the hot exhaust gases to superheated steam.
  • the superheated steam is passed through a further valve device 15.
  • the valve device 15 corresponds to a first valve device in the sense of claim 1.
  • the first valve device 15 is preferably designed as a proportional valve device. It can according to the representation of FIG. 3 be designed as a three-way valve.
  • the first valve device 15 can furthermore be controlled in the first phase P1 depending on the extent and the temperature of the hot exhaust gases.
  • the superheated steam is divided into a first and a second part. This too is in FIG. 3 indicated by corresponding arrows B.
  • the second part is complementary to the first part.
  • the first part of the superheated steam is passed through a buffer reservoir 16 in a loading direction.
  • the first part of the superheated steam heats up a storage medium located there in the buffer memory 16.
  • the storage medium may be in particular concrete, the buffer memory 16 may thus be designed as concrete storage.
  • the second part of the superheated steam is passed via a line 16 ', bypassing the buffer memory 16 directly to a steam turbine 17.
  • the steam turbine 17 drives an electric generator 18.
  • the first part of the superheated steam can also be passed to the steam turbine 17 after flowing through the buffer 16.
  • a further valve device 19 is preferably present (second valve device in the sense of claim 2).
  • the two steam streams are combined in this case.
  • the union of the two vapor streams is passed in this case to the steam turbine 17.
  • the second valve device 19 is preferably oriented as a proportional valve device. It can according to the representation of FIG. 3 be designed in particular as a three-way valve.
  • the now relaxed steam can be fed to a condenser 20 and condensed there.
  • the condensed steam can be pumped via a condensate pump 21 to a condensate preheater 22.
  • the expanded steam, starting from the steam turbine 17, can be led via a line 23 to the condensate preheater 22.
  • a proportional valve 24 is preferably arranged in this line 23, the degree of opening of which is adjusted as a function of the temperature of the hot water leaving the condensate preheater 22.
  • the expanded steam, starting from the steam turbine 17, can be led via a line 25 to a degasser 26.
  • a proportional valve 27 is preferably arranged in the conduit 25, the degree of opening of which is adjusted as a function of the temperature of the hot water flowing out of the degasifier 26.
  • the hot water is fed via a feedwater pump 28 to the basic preheater 8.
  • a pump 29 is controlled, so that the hot water leaving the basic preheater 8 is supplied to the preheater 8 or the steam drum 9 again via the degasser 26.
  • FIG. 4 shows the same water-steam cycle as FIG. 3 , but in the second phase P2.
  • the second phase P2 of the vapor storage device 11 Taken off saturated steam.
  • the control state of the third valve device 14 is controlled as a function of the quantity and / or the temperature of the hot exhaust gases.
  • the extracted saturated steam is divided by means of the third valve device 14 into a third part and into a fourth part of the saturated steam. This is in FIG. 4 indicated by corresponding arrows C.
  • the third part of the saturated steam is passed through the superheater 6 and then fed to the first valve means 15.
  • the steam coming from the superheater 6 is combined by means of the first valve device 15 with superheated steam, which is taken out of the buffer reservoir 16 counter to the loading direction.
  • the union of the two vapor streams is - see the corresponding arrows D in FIG. 4 - Conducted via the line 16 'and the second valve means 19 to the steam turbine 17.
  • the fourth part of the saturated steam is conducted via a line 30 against the loading direction through the buffer memory 16 and overheated there to the superheated steam, which is the first valve means 15 is supplied and combined there with the incoming from the superheater 6 steam.
  • the embodiment of the water-steam cycle according to the FIG. 3 and 4 can be operated in particular such that the temperature of the steam turbine 17 supplied superheated steam phase-spanning at least approximately constant.
  • the two evaporator elements 5, 7, the superheater 6 and the Grundvor lockerr 8, in the same order as in the FIG. 3 and 4 are installed in the piping system 2.
  • the evaporator elements 5, 7 together again correspond to the evaporator device. They remove hot water at least in the first phase P 1 of the steam drum 9, evaporate it by means of the hot exhaust gases and feed the vaporized hot water back into the steam drum 9 as saturated steam.
  • the steam drum 9 already the steam storage device 9.
  • the steam drum 9 can - be dimensioned larger than the steam drum 9 of the embodiment of - with the same or comparable base part 1 FIG. 3 and 4 , Alternatively, the sizing of the steam drum 9 can be maintained. In this case, the steam drum 9 operates with a relatively small storage capacity.
  • the vapor pressure in both cases is kept constant or, if possible, constant.
  • the steam mass flow taken from the steam drum 9 varies in both cases, depending on the heat supply to the evaporator elements 5, 7.
  • the saturated steam generated in the evaporator elements 5, 7 and stored in the steam storage device 9 (possibly briefly) is passed through the superheater 6 where it is superheated to superheated steam by means of the hot exhaust gases.
  • the design of the steam-water cycle of FIG. 5 and 6 has the first valve device 15, which is preferably designed as a proportional valve device. According to the presentation of the FIG. 5 and it is designed as a three-way valve.
  • the first valve device 15 the superheated steam is divided into a first and a second part in the first phase P1 of the system cycle. This is in FIG. 5 indicated by corresponding arrows E.
  • the first part of the superheated steam is as shown by FIG. 5 passed in a loading direction through the buffer memory 16 and heated in buffer 16, the storage medium located there.
  • the second part of the superheated steam is passed bypassing the buffer memory 16 via a line 31 directly to the steam turbine 17, which in turn generates electrical energy via the connected generator 18.
  • the now relaxed steam - analogous to the FIG. 3 and 4 - Passed as steam or condensate to the condensate preheater 22 or passed to the degasser 26.
  • the guided through the buffer memory 16 first part of - superheated steam may under certain circumstances - analogous to the embodiment of FIG. 3 - Also the steam turbine 17 are supplied.
  • the first part of the superheated steam is condensed again after flowing through the buffer memory 16 and the steam storage device 9 -.
  • the steam drum 9 - fed So the steam drum 9 - fed.
  • the condensed steam can be fed into the line 28 'through which hot water is supplied to the primary preheater 8.
  • the buffer memory 16 is in the embodiment of FIG. 5 and 6 not a simple concrete, sand or salt storage (as with the FIG. 3 and 4 ), but is more complex.
  • the buffer memory 16 comprises according to FIG. 5 and 6 a buffer superheater 32, a buffer preheater 33, a latent heat storage 34 and a buffer steam drum 35.
  • the buffer superheater 32 may be formed, for example, as a concrete, sand or salt superheater.
  • the buffer storage preheater 33 may be formed.
  • the first part of the superheated steam is in accordance with the in FIG. 5 drawn arrows initially passed through the buffer memory superheater 32.
  • the first part of the superheated steam is conducted through the latent heat accumulator 34 by means of a valve device 36 (sixth valve device in the sense of claim 11). From there, the first part of the superheated steam is supplied to the buffer storage preheater 33 by means of a further valve device 37 (fifth valve device in the sense of claim 11). Then, the superheated steam - then no longer overheated, but even condensed - leaving the buffer memory 16. For example, the condensate leaving the buffer memory 16 via a further valve means 38 (corresponding to a fourth valve means in the sense of claim 9) fed into the feed line 28 ' which serves - via the basic preheater 8 - the feeding of the steam storage device 9 with hot water.
  • a further valve means 38 corresponding to a fourth valve means in the sense of claim 9
  • the fifth and the sixth valve device 36, 37 may be designed as proportional valve devices. Alternatively, they can be designed as simple, only binary (open / close) switchable valve devices.
  • the fourth valve device 38 is preferably designed as a proportional valve device. Both the fourth and the fifth and the sixth valve means 36, 37, 38 can according to the illustration of FIG. 5 and 6 be designed as three-way valves.
  • the steam storage device 9 (ie the steam drum 9) also becomes saturated steam taken.
  • the saturated steam is according to the design of the steam-water circuit of FIG. 5 and 6 also in the second phase P2 completely passed through the superheater 6 and the first valve means 15 supplied.
  • the fed through the superheater 6 saturated steam is combined by means of the first valve means 15 with superheated steam, according to FIG. 6 is removed from the buffer memory 16 contrary to the loading direction, see the corresponding arrows F in FIG. 6 ,
  • the union of the two vapor streams is passed via the line 31 to the steam turbine 17.
  • the overheated in the second phase P2 of the system cycle against the loading direction of the buffer 16 steam is previously supplied to the buffer memory 16 as hot water.
  • the hot water of the aforementioned feed line 28 ' are removed.
  • the hot water can be tapped behind the Grundvormaschiner 8.
  • Also mixed forms are possible.
  • the removal can take place in particular by means of the fourth valve device 38.
  • the hot water of the feed line 28 ' is removed, it is first passed through the buffer preheater 33 and then passed from there via the fifth valve means 37 in the buffer storage steam drum 35.
  • the hot water is passed directly - ie bypassing the buffer storage preheater 33 and the fifth valve means 37 - in the buffer storage steam drum 35.
  • the control takes place via a valve device 38 '(seventh valve device in the sense of claim 11).
  • the seventh valve device 38 ' is preferably designed as a proportional valve device.
  • the hot water of the buffer steam drum 35 is supplied, it is removed via a line 39 by means of a pump 40 of the buffer steam drum 35 and directed against the loading direction by the latent heat storage 34.
  • the hot water is evaporated to wet or saturated steam.
  • the wet or saturated steam is fed back to the buffer storage steam drum 35 via the sixth valve device 36.
  • a valve device 41 (ninth valve device in the sense of claim 11) may further be arranged.
  • the ninth valve device 41 can be designed as a simple switching valve (open / closed) or as a proportional valve device.
  • saturated steam is taken from the buffer storage steam drum 35 and guided against the loading direction by the buffer storage superheater 32.
  • the saturated steam is overheated to superheated steam.
  • the seventh, eighth and ninth valve means 38 ', 43, 41 are simple two-way valves. They can be designed as proportional valves or as simple switching valves (open / closed).
  • the temperature of the steam turbine 17 supplied superheated steam in both phases P1, P2 of the plant cycle is substantially the same.
  • the steam mass flow to the steam turbine 17 can also be kept constant, at least essentially.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Claims (15)

  1. Procédé de fonctionnement pour une installation de l'industrie primaire,
    - dans lequel on fait fonctionner un élément de base (1) de l'installation selon un cycle d'installation,
    - dans lequel, pendant les cycles d'installation, dans une première phase (P1) du cycle d'installation respectif, il y a production de gaz brûlés chauds, et dans une deuxième phase (P2) du cycle d'installation respectif, il n'y a pas de production de gaz brûlés chauds ou des gaz brûlés chauds ne sont produits qu'en quantité considérablement réduite par rapport à la première phase (P1),
    - dans lequel la quantité respective de gaz brûlés chauds produits est évacuée de l'élément de base (1) de l'installation via un système de conduites tubulaires (2),
    - dans lequel, dans un dispositif évaporateur (5, 7) intégré au système de conduites tubulaires (2), de l'eau est évaporée au moyen des gaz brûlés chauds au moins dans la première phase (P1) pour former de la vapeur saturée, et la vapeur saturée est amenée à un dispositif accumulateur de vapeur (9, 11),
    - dans lequel, dans la première phase (P1),
    -- la vapeur saturée accumulée dans le dispositif accumulateur de vapeur (9, 11) est conduite à travers un surchauffeur (6) intégré au système de conduites tubulaires (2), où elle est surchauffée au moyen des gaz brûles chauds pour former de la vapeur surchauffée,
    -- au moyen d'un premier dispositif de soupape (15) monté entre le surchauffeur (6) et un réservoir tampon (16), une première partie de la vapeur surchauffée est conduite dans un sens de chargement à travers le réservoir tampon (16),
    -- la première partie de la vapeur surchauffée dans le réservoir tampon (16) chauffe un fluide situé dans celui-ci, et
    -- une deuxième partie de la vapeur surchauffée, complémentaire à la première, est conduite au moyen du premier dispositif de soupape (15) vers une turbine à vapeur (17) en contournant le réservoir tampon (16),
    caractérisé en ce que
    dans la deuxième phase (P2),
    - de la vapeur saturée est prélevée dans le dispositif accumulateur de vapeur (9, 11), conduite au moins en partie à travers le surchauffeur (6) et combinée au moyen du premier dispositif de soupape (15) à de la vapeur surchauffée prélevée dans le réservoir tampon (16) dans le sens contraire du sens de chargement, et
    - la combinaison de la vapeur conduite à travers le surchauffeur (6) et de la vapeur surchauffée prélevée dans le réservoir tampon (16) est conduite vers la turbine à vapeur (17).
  2. Procédé de fonctionnement selon la revendication 1,
    caractérisé en ce que
    dans la première phase (P1), la première partie de la vapeur surchauffée, après avoir traversé le réservoir tampon (16), est combinée à la deuxième partie de la vapeur surchauffée au moyen d'un deuxième dispositif de soupape (19) monté entre le réservoir tampon (16) et la turbine à vapeur (17), et en ce que la combinaison des première et deuxième parties de la vapeur surchauffée est conduite vers la turbine à vapeur (17).
  3. Procédé de fonctionnement selon la revendication 2,
    caractérisé en ce que
    dans la deuxième phase (P2), la vapeur surchauffée prélevée dans le réservoir tampon (16) dans le sens contraire du sens de chargement est préalablement prélevée comme vapeur saturée dans le dispositif accumulateur de vapeur (11).
  4. Procédé de fonctionnement selon la revendication 3,
    caractérisé en ce que
    la vapeur saturée prélevée dans le dispositif accumulateur de vapeur (11) est divisée dans la deuxième phase (P2), au moyen d'un dispositif de soupape (14) monté entre le dispositif accumulateur de vapeur (11) d'une part et le surchauffeur (6) et le réservoir tampon (16) d'autre part, en vapeur saturée amenée au surchauffeur (6) et en vapeur saturée amenée au réservoir tampon (16).
  5. Procédé de fonctionnement selon la revendication 2, 3 ou 4,
    caractérisé en ce que
    le réservoir tampon (16) est conçu comme réservoir de béton, de sable ou de sel liquide.
  6. Procédé de fonctionnement selon la revendication 1,
    caractérisé en ce que
    dans la première phase (P1), la première partie de la vapeur surchauffée, après avoir traversé le réservoir tampon (16), est condensée et envoyée de nouveau au dispositif accumulateur de vapeur (9).
  7. Procédé de fonctionnement selon la revendication 6,
    caractérisé en ce que
    dans la première phase (P1), la première partie de la vapeur surchauffée, après avoir été condensée et avant d'être envoyée au dispositif accumulateur de vapeur (9), est conduite à travers un préchauffeur de base (8) intégré au système de conduites tubulaires (2) en aval du dispositif évaporateur (5, 7) par rapport au système de conduites (2).
  8. Procédé de fonctionnement selon la revendication 7,
    caractérisé en ce que
    dans la deuxième phase (P2), la vapeur surchauffée prélevée dans le réservoir tampon (16) dans le sens contraire du sens de chargement est préalablement prélevée comme eau chaude dans une conduite d'alimentation (28') servant à alimenter le dispositif accumulateur de vapeur (9) ou en aval du préchauffeur de base (8).
  9. Procédé de fonctionnement selon la revendication 8,
    caractérisé en ce que
    le prélèvement d'eau chaude dans la conduite d'alimentation (28') s'effectue au moyen d'un quatrième dispositif de soupape (38) monté dans la conduite d'alimentation (28').
  10. Procédé de fonctionnement selon la revendication 8 ou 9,
    caractérisé en ce que
    - le réservoir tampon (16) comprend un surchauffeur (32) de réservoir tampon, un préchauffeur (33) de réservoir tampon, un réservoir de chaleur latente (34) et un tambour à vapeur (35) de réservoir tampon,
    - en ce que, dans la première phase (P1), la première partie de la vapeur surchauffée est conduite d'abord à travers le surchauffeur (32) de réservoir tampon, de là à travers le réservoir de chaleur latente (34), puis de là à travers le préchauffeur (33) de réservoir tampon en contournant le tambour à vapeur (35) de réservoir tampon,
    - en ce que, dans la deuxième phase (P2), l'eau chaude, si elle est prélevée dans la conduite d'alimentation (28'), est conduite d'abord à travers le préchauffeur (33) de réservoir tampon et de là dans le tambour à vapeur (35) de réservoir tampon, et si elle est prélevée en aval du préchauffeur de base (8), elle est conduite dans le tambour à vapeur (35) de réservoir tampon en contournant le préchauffeur (33) de réservoir tampon, prélevée ensuite dans le tambour à vapeur (35) de réservoir tampon et transformée en vapeur humide ou vapeur saturée dans le réservoir de chaleur latente (34), d'où elle est de nouveau envoyée comme vapeur humide ou vapeur saturée au tambour à vapeur (35) de réservoir tampon, et enfin de la vapeur saturée est prélevée dans le tambour à vapeur (35) de réservoir tampon et conduite à travers le surchauffeur (32) de réservoir tampon, la vapeur saturée étant surchauffée dans le surchauffeur (32) de réservoir tampon pour former de la vapeur surchauffée.
  11. Procédé de fonctionnement selon la revendication 10,
    caractérisé en ce que
    - pour guider l'eau chaude, la vapeur saturée et la vapeur surchauffée, il est prévu un cinquième à neuvième dispositif de soupape (37, 36, 38', 43, 41),
    - en ce que le cinquième dispositif de soupape (37) est monté entre le préchauffeur (33) de réservoir tampon, le tambour à vapeur (35) de réservoir tampon et le réservoir de chaleur latente (34),
    - en ce que le sixième dispositif de soupape (36) est monté entre le tambour à vapeur (35) de réservoir tampon, le réservoir de chaleur latente (34) et le surchauffeur (32) de réservoir tampon,
    - en ce que le septième dispositif de soupape (38') est monté dans une conduite de liaison reliant le préchauffeur de base (8) et le tambour à vapeur (35) de réservoir tampon,
    - en ce que le huitième dispositif de soupape (43) est monté dans une conduite de liaison (43) via laquelle le tambour à vapeur (35) de réservoir tampon et le surchauffeur (32) de réservoir tampon sont reliés ensemble en contournant le sixième dispositif de soupape (36), et
    - en ce que le neuvième dispositif de soupape (41) est monté dans une conduite menant du tambour à vapeur (35) de réservoir tampon à une conduite de liaison via laquelle le cinquième dispositif de soupape (37) et le réservoir de chaleur latente (34) sont reliés ensemble.
  12. Procédé de fonctionnement selon l'une des revendications 6 à 11,
    caractérisé en ce que
    la vapeur saturée prélevée dans le dispositif accumulateur de vapeur (9) dans la deuxième phase (P2) est conduite intégralement à travers le surchauffeur (6).
  13. Procédé de fonctionnement selon l'une des revendications 1 à 12,
    caractérisé en ce que
    les dispositifs de soupape (14, 15, 19, 36, 37, 38, 38', 41, 43) sont conçus comme dispositifs de soupape proportionnels.
  14. Installation de l'industrie primaire,
    - l'installation comportant un élément de base (1) fonctionnant selon un cycle d'installation,
    - dans laquelle, pendant les cycles d'installation, dans une première phase (P1) du cycle d'installation respectif, il y a production de gaz brûlés chauds, et dans une deuxième phase (P2) du cycle d'installation respectif, il n'y a pas de production de gaz brûlés chauds ou des gaz brûlés chauds ne sont produits qu'en quantité considérablement réduite par rapport à la première phase (P1),
    - l'installation comportant un système de conduites tubulaires (2) via lequel la quantité respective de gaz brûlés chauds produits est évacuée de l'élément de base (1) de l'installation,
    - un dispositif évaporateur (5, 7) étant intégré au système de conduites tubulaires (2), dans lequel de l'eau est évaporée au moyen des gaz brûlés chauds au moins dans la première phase (P1) pour former de la vapeur saturée,
    - l'installation comportant un dispositif accumulateur de vapeur (9, 11) auquel la vapeur saturée est amenée,
    - l'installation comportant un surchauffeur (6) intégré au système de conduites tubulaires (2), dans lequel la vapeur saturée accumulée dans le dispositif accumulateur de vapeur (9, 11) passe dans la première phase (P1) et où elle est surchauffée au moyen des gaz brûles chauds pour former de la vapeur surchauffée, et dans lequel la vapeur saturée prélevée dans le dispositif accumulateur de vapeur (9, 11) passe au moins en partie dans la deuxième phase (P2),
    - l'installation comportant un réservoir tampon (16) et un premier dispositif de soupape (15) disposé entre le surchauffeur (6) et le réservoir tampon (16),
    - dans la première phase (P1), une première partie de la vapeur surchauffée étant conduite au moyen du premier dispositif de soupape (15), dans un sens de chargement, à travers le réservoir tampon (16) en chauffant un fluide situé dans le réservoir tampon, et une deuxième partie de la vapeur surchauffée, complémentaire à la première, étant conduite vers une turbine à vapeur (17) en contournant le réservoir tampon (16),
    caractérisée en ce que
    dans la deuxième phase (P2),
    - la vapeur conduite à travers le surchauffeur (6) est combinée au moyen du premier dispositif de soupape (15) à de la vapeur surchauffée prélevée dans le réservoir tampon (16) dans le sens contraire du sens de chargement, et
    - la combinaison de la vapeur conduite à travers le surchauffeur (6) et de la vapeur surchauffée prélevée dans le réservoir tampon (16) est conduite vers la turbine à vapeur (17).
  15. Installation de l'industrie primaire selon la revendication 14,
    caractérisée en ce que
    elle fonctionne selon un procédé de fonctionnement selon l'une des revendications 2 à 13.
EP12705647.1A 2011-03-14 2012-02-16 Procédé pour faire fonctionner une installation de l'industrie primaire Not-in-force EP2686608B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA347/2011A AT510688B1 (de) 2011-03-14 2011-03-14 Betriebsverfahren für eine anlage der grundstoffindustrie
PCT/EP2012/052655 WO2012123211A2 (fr) 2011-03-14 2012-02-16 Procédé pour faire fonctionner une installation de l'industrie primaire

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EP2686608A2 EP2686608A2 (fr) 2014-01-22
EP2686608B1 true EP2686608B1 (fr) 2016-08-03

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EP (1) EP2686608B1 (fr)
KR (1) KR20140007903A (fr)
CN (1) CN103443540B (fr)
AT (1) AT510688B1 (fr)
BR (1) BR112013023366A2 (fr)
WO (1) WO2012123211A2 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016118594A1 (de) * 2016-09-30 2018-04-05 Erk Eckrohrkessel Gmbh Verfahren und Einrichtung zur Erzeugung elektrischer Energie

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1288614B (de) * 1960-06-04 1969-02-06 Waagner Biro Ag Verfahren und Vorrichtung zum Abbau von Dampfspitzen aus Prozessabfallwaermeverwertern mit variabler Dampferzeugung
GB935462A (en) * 1960-10-18 1963-08-28 Head Wrightson & Co Ltd Waste heat boiler
US3175899A (en) * 1960-12-06 1965-03-30 Kemmetmuller Roland Method for operating steel works wherein oxygen or air enriched with oxygen is used as a refining means
BE612851A (fr) * 1961-01-20 1962-05-16 Waagner Biro Ag Procédé et dispositif pour compenser les pointes de vapeur produites par les installations à chaleur perdue à production de vapeur variable.
US3303827A (en) * 1962-01-15 1967-02-14 Waagner Biro Ag Method and apparatus for removing steam peaks from a steam boiler which utilizes cyclically produced waste heat, preferably the waste heat from converters blown by oxygen
DE1401381B2 (de) * 1962-07-28 1970-08-13 Siemens AG, 1000 Berlin u. 8000 München Dampferzeugungsanlage zur Abhitzeverwertung
US3398534A (en) * 1966-11-18 1968-08-27 Combustion Eng Industrial system and process utilizing turbo-compressor unit
US4164848A (en) * 1976-12-21 1979-08-21 Paul Viktor Gilli Method and apparatus for peak-load coverage and stop-gap reserve in steam power plants
JP2003214182A (ja) * 2002-01-24 2003-07-30 Mitsubishi Heavy Ind Ltd ガスタービンコンバインドプラント、およびその運転方法
DE10260993A1 (de) * 2002-12-24 2004-07-08 Riedel, Erik, Dr.-Ing. Verfahren zur Stromerzeugung sowie nach diesen Verfahren betriebene Kraftwerke
US20100319348A1 (en) * 2009-05-26 2010-12-23 Worleyparsons Group, Inc. Waste heat recovery system

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Publication number Publication date
WO2012123211A3 (fr) 2013-04-25
AT510688B1 (de) 2012-06-15
EP2686608A2 (fr) 2014-01-22
WO2012123211A2 (fr) 2012-09-20
BR112013023366A2 (pt) 2016-12-13
AT510688A4 (de) 2012-06-15
KR20140007903A (ko) 2014-01-20
CN103443540A (zh) 2013-12-11
CN103443540B (zh) 2015-07-08

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