EP2212618A2 - Verfahren zum betreiben eines durchlaufdampferzeugers sowie zwangdurchlaufdampferzeuger - Google Patents
Verfahren zum betreiben eines durchlaufdampferzeugers sowie zwangdurchlaufdampferzeugerInfo
- Publication number
- EP2212618A2 EP2212618A2 EP08853664A EP08853664A EP2212618A2 EP 2212618 A2 EP2212618 A2 EP 2212618A2 EP 08853664 A EP08853664 A EP 08853664A EP 08853664 A EP08853664 A EP 08853664A EP 2212618 A2 EP2212618 A2 EP 2212618A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- flow
- evaporator
- characteristic
- mass flow
- enthalpy
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/38—Determining or indicating operating conditions in steam boilers, e.g. monitoring direction or rate of water flow through water tubes
Definitions
- the invention relates to a method for operating a continuous steam generator with a Verdampfersammlungflache, wherein a device for adjusting the feedwater mass flow M, a target value Ms for the feedwater mass flow M is supplied. It further relates to a forced once-through steam generator for carrying out the method.
- the heating of a number of steam generator tubes, which together form an evaporator heating surface leads to a complete evaporation of a flow medium in the steam generator tubes in one pass.
- the flow medium-usually water- is fed to a preheater upstream of the evaporator heating surface upstream of the evaporator heating surface, usually also referred to as an economizer, and preheated there before it evaporates.
- the feedwater mass flow is regulated in the evaporator heating surface.
- the evaporator flow should be changed as synchronously as possible to the heat input into the evaporator heating surface, because otherwise a deviation of the specific enthalpy of the flow medium at the outlet of the evaporative heating surface from the desired value can not be reliably avoided.
- Such an undesired deviation of the specific enthalpy makes it difficult to regulate the temperature of the live steam emerging from the steam generator and moreover leads to high material loads and thus to a reduced service life of the steam generator.
- the feedwater flow control can be designed in the manner of a so-called predictive or anticipatory design.
- the required feedwater desired values should also be provided during load changes as a function of the current or expected future operating state.
- a continuous steam generator in which the feedwater flow is controlled by a preliminary calculation of the required amount of feed water.
- the basis for the calculation method is the heat flow balance of the evaporator heating surface into which the feedwater mass flow should enter, in particular at the inlet of the evaporator heating surface.
- the desired value for the feedwater mass flow is determined from the ratio of the heat flow currently transferred to the flow medium by the heating gas in the evaporator heating surface and a desired enthalpy increase of the flow medium in the evaporator heating surface in relation to the desired live steam state.
- the measurement of the feedwater mass flow directly at the entrance of the evaporator heating surface proves to be technically complicated and not reliably feasible in every operating state.
- the feedwater mass flow at the inlet of the preheater is measured as a substitute and included in the calculations of the feedwater quantity, which however is not always equal to the feedwater mass flow at the inlet of the evaporator heating surface.
- an alternative concept of predictive mass flow control is provided as one the input variables for the feedwater Flow control to take into account the feed water density at the inlet of the preheater.
- Both of these concepts for a predictive mass flow control are based on the setpoint value for the steam generator output, from which the characteristic values flowing into the actual setpoint determination are calculated on the basis of stored correlations and, in particular, recourse to previously obtained calibration or reference measurements.
- this requires sufficiently stable and clearly attributable to a firing capacity overall system properties, as is usually the case with fired steam generators.
- other systems such as in a design of the continuous steam generator as a waste heat boiler for heat recovery from the flue gas of an upstream gas turbine, such conditions are not available.
- a firing capacity can not be used to the same extent as a free parameter as in directly fired boilers, as in an interconnection as waste heat boiler usually considered as the primary criterion for controlling the entire system operation of the gas turbine, the system state of the be adapted to other components.
- the invention is therefore based on the object of specifying a method for operating a steam generator of the type mentioned above, with a comparatively low cost even when operating the steam generator as a waste heat boiler a particularly well adapted to the current or expected heat input into the evaporator heating adjustment the feedwater mass flow through the VerdampferAcrossflache allows. Furthermore, a particularly suitable for the implementation of the method forced circulation steam generators should be specified.
- this object is achieved according to the invention in that the heat flow transferred from the heating gas to the flow medium takes into account one of the current heat flows. Temperature of the fuel gas at the evaporator inlet characteristic temperature characteristic value and a characteristic of the current mass flow of the fuel gas mass flow characteristic is determined.
- the invention is based on the consideration that a useful, sufficiently reliable predictive mass flow control, which is also suitable for use as a heat recovery steam generator, should be adapted to the special features of the waste heat boiler. Particular attention should be paid to the fact that unlike fired boilers in this case, the firing rate is not a suitable parameter that allows a sufficiently reliable conclusion on the underlying heat balance. In particular, it should be taken into account that with an equivalent for waste heat boilers, namely the current gas turbine performance or with this correlating parameters, further, gas turbine internal parameters can occur, so that on the basis of these large no acceptable conclusion to the enthalpy ratios at the entrance of the fuel gas in the flue gas duct of the steam generator is possible.
- the heat flow balance used to determine the required feedwater flow should therefore be based on other, particularly suitable parameters. For this purpose, the heating gas temperature when entering the evaporator and the mass flow of the heating gas are provided in the present case.
- a pilot-controlled calculation of the required feedwater quantity on the basis of a heat flow balance of the evaporator which may optionally also include optional UberhitzerOnlineflachen enabled.
- the temperature characteristic value characteristic of the actual temperature of the heating gas at the evaporator inlet in particular enables the determination of a particularly reliable characteristic value for the heating gas enthalpy at the evaporator inlet, taking into account the heating gas enthalpy at the evaporator outlet, which in turn is based on the current mass flow characteristic.
- Ristic mass flow characteristic can be calculated, and thus a particularly reliable and needs-based determination of the current heat supply or transfer of fuel gas to the feed water.
- the predetermined desired enthalpy increase that is to say in particular the difference between the desired enthalpy of the flow medium at the evaporator outlet determined taking into account the desired live steam parameters and the actual enthalpy at the evaporator inlet determined from suitable measured values such as pressure and temperature, for example desired desired enthalpy increase of the flow medium in the evaporator heating surface can be determined, it being possible to calculate a setpoint value for the feedwater mass flow suitable for this purpose from the ratio of these variables.
- a characteristic value which is particularly representative of the current situation is preferably taken into account.
- Such characteristic values can be suitably determined on the basis of currently available measurement data and can be made available in a suitable manner, in particular with recourse to stored memory characteristic values.
- a particularly reliable evaluation of the heat flow balance and thus the determination of a particularly precisely calculated feedwater desired value is made possible by advantageously taking into account in each case a currently measured value as a characteristic temperature characteristic and / or as a characteristic mass flow characteristic.
- the heat flow transferred from the heating gas to the flow medium is advantageously determined on the basis of a heat flow balance, in which the enthalpy difference of the heating gas between the evaporator inlet and the evaporator outlet is taken as the essential input variable.
- a heat flow balance in which the enthalpy difference of the heating gas between the evaporator inlet and the evaporator outlet is taken as the essential input variable.
- this aspect of the energy input and / or outflow of heat in the metal masses is suitably taken into account as a characteristic correction value by which the enthalpy difference of the heating gas is suitably modified.
- the current enthalpy of the hot gas at the evaporator outlet is advantageously taken into account by being determined on the basis of the pressure of the flow medium at the evaporator inlet taking into account the characteristic mass flow characteristic value for the current mass flow of the hot gas.
- the mass flow characteristic value which is preferably present in the form of a measured value, but alternatively can also be calculated indirectly via further parameters with reference to stored correlation or other characteristic values, is advantageously first entered in the so-called "pinch point" of the steam generator, ie in the temperature difference between the steam generator Outgoing temperature of the flue gas and the boiling temperature of the flow medium at the evaporator inlet converted, said temperature difference added advantageously to a determined based on the pressure at the evaporator inlet boiling temperature of the flow medium and from this sum, the enthalpy of the heating gas is determined at the evaporator outlet.
- the determination of the desired enthalpy increase of the flow medium in the evaporator heating surface is advantageously carried out, on the one hand, by means of suitable measured values, such as, for example, the pressure and the temperature of the flow medium during evaporation. entry is based on the determined actual enthalpy.
- suitable measured values such as, for example, the pressure and the temperature of the flow medium during evaporation. entry is based on the determined actual enthalpy.
- a desired value for its enthalpy at the evaporator outlet is specified depending on or taking into account the desired steam condition, for example the specified steam parameter or the vapor content at the evaporator outlet.
- the continuous-flow steam generator can be operated in a so-called "Benson control mode.”
- the overflow of the flow medium is generally present at the outlet of the evaporator heating surface.
- the overcurrent of a water storage tank connected downstream of the evaporator heating surface can be accepted, and partly still unvaporized flow medium can be supplied to the subsequent heating surfaces, so that the complete evaporation of the flow medium takes place only in the subsequent heating surfaces.
- the adjustment may be desired in particular as steam parameters egg ner be specified by a predetermined temperature difference of, for example 35 0 C above the saturation temperature of the target temperature for the Stromungsmediums lying Stromungsmedium at the outlet of the evaporator.
- the enthalpy setpoint of the flow medium at the evaporator outlet can be increased appropriately, so that a correspondingly small amount of feed water is supplied via the thus changed setpoint for the feedwater mass flow.
- the steam generator can also be operated in a so-called "level control mode", in which the water level in a water storage tank connected downstream of the evaporator heating surface is varied and readjusted, whereby an overflow of the water storage tank should be avoided as far as possible within the water reservoir as far as possible kept in a predetermined desired range, in an advantageous embodiment for the setpoint for the feedwater mass flow a fullness correction value is taken into account, which characterizes the deviation of the actual level of the fill in the water storage of an associated setpoint.
- level control mode in which the water level in a water storage tank connected downstream of the evaporator heating surface is varied and readjusted, whereby an overflow of the water storage tank should be avoided as far as possible within the water reservoir as far as possible kept in a predetermined desired range
- the stated object is achieved by designing a feedwater flow control system assigned to a device for adjusting the feedwater mass flow for specifying the desired value for the feedwater mass flow by means of said method.
- the forced-circulation steam generator is designed in a particularly advantageous manner as a heat recovery steam generator, which is acted upon the hot gas side with the exhaust gas from an associated gas turbine plant.
- a predictive or preventive determination of an anticipated demand is particularly extensive by the specific consideration of a characteristic of the current temperature of the flue gas when entering the Schugaskanal and / or for the current mass flow of the flue gas oriented feedwater mass flow set point, whereby even in the case of using the steam generator as a waste heat boiler and consequently only lack of correlation of the corresponding enthalpy characteristics with the power or demand characteristic of the system a particularly reliable and stable control behavior can be achieved.
- the once-through steam generators 1, 1 ⁇ in accordance with FIGS. 1, 2 each have a preheater 2, also referred to as an economizer, for feed water provided as flow medium which is located in a throttle cable, which is not shown in any more detail.
- the preheater 2 is a feedwater pump 3 upstream and downstream of a Verdampfersammlungflache 4 downstream medium side.
- the evaporator heating surface 4 is connected on the side of the flow medium via a water reservoir 6, which can also be configured as a water separator or separating bottle, with a number of downstream superheater heating surfaces 8, 10, 12, which in turn can be used to adjust the steam temperatures and the like with injection coolers 14, 16 can be provided.
- the once-through steam generator 1, 1 ⁇ is designed in each case as a waste heat boiler or heat recovery steam generator, wherein the heating surfaces, ie in particular the pre-heater 2, the evaporator 4 and the Uberhitzersammlung- surfaces 8, 10, 12 are arranged in a hot gas side acted upon by the exhaust gas from an associated gas turbine plant Schugaskanal.
- the once-through steam generator 1, 1 ⁇ is designed for a regulated admission with feed water.
- the feedwater pump 3 is followed by a controlled by a servomotor 20 throttle valve 22, so that via suitable control of the throttle valve 22, the funded by the feedwater pump 3 in the direction of the preheater 2 feed water quantity or the feedwater mass flow is adjustable.
- the throttle valve 22 is followed by a measuring device 24 for determining the feedwater mass flow M through the feedwater line.
- the servomotor 20 is actuated via a control element 28, which is acted upon on the input side by a setpoint value M for the feedwater mass flow M supplied via a data line 30 and by the current actual value of the feedwater mass flow M determined via a measuring device 24.
- a tracking requirement is transmitted to the controller 28, so that in the event of a deviation of the actual from the nominal value, a corresponding tracking of the throttle valve 22 takes place via the control of the motor 20.
- the data line 30 is provided with a feedwater flow control 32 designed for setting the desired value M for the feedwater mass flow M on the input side. 32 ⁇ connected.
- This is designed to determine the desired value M for the feedwater mass flow M on the basis of a heat flow balance in the evaporator heating surface 4, wherein the desired value M for the feedwater mass flow M based on the ratio of the currently in the evaporator 4 from the heating gas to the Flow medium transmitted heat flow on the one hand and a predetermined with respect to the desired live steam condition desired enthalpy increase of the flow medium in the evaporator 4 is given on the other hand.
- a usage-of such a concept of providing a desired value for the feed-water mass flow based on a heat balance even for a once-through steam generator 1, 1 ⁇ in construction as a heat recovery steam generator is in the embodiments according to Figures 1, 2 achieved in particular in that the heating gas to The flow of heat transferred to the flow medium is determined taking into account a temperature characteristic value characteristic of the actual temperature of the heating gas at the evaporator inlet and a mass flow characteristic characteristic of the current mass flow of the heating gas.
- the feedwater flow control 32 to a divider 34, the numerator as a suitable characteristic for the currently transmitted in the evaporator 4 from the heating gas to the flow medium heat flow and as a denominator with respect to the desired live steam condition predetermined predetermined characteristic value for the desired desired enthalpy of the Flow medium is supplied in the evaporator 4.
- the divider 34 is connected on the input side to a functional module 36, which outputs a value for the enthalpy of the hot gas at the evaporator inlet based on a temperature characteristic value supplied to the evaporator inlet for the current temperature of the hot gas.
- the supply of a measured value characteristic of the current temperature of the heating gas at the evaporator inlet is provided as a temperature characteristic value.
- the characteristic value which is characteristic of the enthalpy of the heating gas at the evaporator inlet is output to a subtractor 38, from which characteristic value a characteristic value for the enthalpy of the gas at the evaporator outlet provided by a function module 40 is subtracted.
- the sum of two temperature values is formed on the input side of the functional element 40 by a summing element 42. In this case, on the one hand, via a functional element 44, which is connected on the input side to a pressure sensor 46, on the basis of
- This enthalpy difference is forwarded to a multiplier 52, which is also supplied with the characteristic mass flow characteristic value, which, incidentally, can be present as a currently measured value.
- the multiplier 52 thus provides a characteristic value for the output of the flue gas to the evaporator 4 heat output.
- a correction for heat input and / or accumulation effects in the components of the evaporator heating surface 4, in particular in the metal masses, is initially provided.
- the stated characteristic value for the Gas emitted heat output initially supplied to a subtractor 54, where a for the heat input or -aus Eatung in the evaporator components characteristic correction value is subtracted.
- a functional element 56 On the input side, this is in turn subjected to the output value of a further functional element 58, in that a mean temperature value for the metal masses of the evaporator heating surface 4 is determined.
- the further functional member 58 is connected on the input side to a pressure sensor 60 arranged in the water reservoir 6, so that the further functional member 58, the average temperature of the metal masses based on the pressure of the flow medium, for. B. by equating with the boiling temperature associated with this pressure in the water tank 6 can determine.
- the subtracting member 54 On the output side, the subtracting member 54 thus transfers a heat output for the heating gas, reduced by the thermal power stored in the metal of the evaporator heating surface 4, and thus a characteristic characteristic of the heat output to be delivered to the flow medium.
- This characteristic value is used in the divider 34 as a counter, which is divided there by a denominator, which corresponds to a predetermined with respect to the desired live steam condition desired enthalpy increase of the flow medium in the evaporator 4, so that from this division or this ratio of the setpoint Ms for the feedwater mass flow M can be formed.
- the divider 34 is connected on the input side to a subtracting element 70. This is acted on the input side with a provided by a functional element 72 characteristic value for the desired setpoint for the enthalpy of the flow medium at the evaporator outlet.
- the subtractor 70 is provided on the input side with a characteristic value or actual value provided by a function module 74 for the current enthalpy of the flow medium at the evaporator inlet.
- a function module 74 for the current enthalpy of the flow medium at the evaporator inlet.
- the functional module 74 is connected to the pressure sensor 46 and to a temperature sensor 76 in order to form the characteristic value for the actual enthalpy at the evaporator inlet.
- the subtraction element 70 thus determines the enthalpy increase to be introduced as a function of the desired live steam state into the flow medium in the evaporator heating surface 4, which can be used as a denominator in the divider 34.
- the once-through steam generator 1 and the once-through steam generator 1 ⁇ according to FIGS 1 and 2 differ in the configuration of their Lucasigan Struktur- control 32, 32 ⁇ regarding particular.
- the formation of the desired value for the enthalpy at the evaporator outlet, and thus with respect to the input-side loading of the functional module 72nd The forced once-through steam generator 1 according to FIG. 1 is designed for operation in the so-called "Level Control Mode" in which the water level in the water reservoir 6 is regulated, with steam being passed exclusively to the superheater heating surfaces 8, 10, 12 downstream of the evaporator heating surface 4
- the function module 72 is acted upon on the input side on the one hand by a measured value supplied by the pressure sensor 60 for the pressure in the water reservoir 6.
- the functional module 72 via an associated input 78 a characteristic of the desired live steam condition parameters, for example, a desired vapor content at the evaporator outlet supplied. From this parameter together with the mentioned pressure characteristic value, the desired value for the enthalpy of the flow medium at the evaporator outlet is subsequently formed in the function module 72.
- the divider 34 supplies, on the output side, a desired value for the feedwater mass flow, which is determined on the basis of the above-mentioned Hot balance is aligned and determined.
- This setpoint is then corrected in a subsequent adder 80 but still by a correction value that reflects a desired over the feed water flow change in the level in the water tank 6.
- the water level in the water reservoir 6 is detected via a level sensor 82.
- This actual value for the fill level is subtracted in a subtractor 84 from a stored or otherwise presettable setpoint for the fill level in the water reservoir 6. Based on the determined deviation of the
- the once-through steam generator 1 ⁇ according to FIG. 2 is designed for operation in the so-called "Benson Control Mode", in which an over-supply of the water reservoir 6, which is also provided as a water separator, and the complete evaporation of the flow medium takes place only in the following superheater heating surfaces 8, 10, 12.
- the functional element 72 via which the desired value for the enthalpy of the flow medium at the evaporator outlet is to be output, is likewise acted upon on the input side by the actual value for the pressure in the water separator 6 determined by the pressure sensor 60
- Function module 72 upstream of another function module 90 on the basis of the determined by the pressure sensor 60 actual pressure in the water storage 6 based on a deposited functionality or the desired live steam condition a suitable setpoint for the temperature of the flow medium in the water reservoir
- a temperature value to be as the nominal value for the temperature in this case deposited who speaks the saturation temperature of the flow medium in the determined pressure plus an intended minimum overheating of, for example 35 0 C corresponds.
- the function module 72 determines from this setpoint value for the temperature in consideration of the current pressure value the said setpoint for the enthalpy of the flow medium at the evaporator outlet.
- this nominal value provided by the function module 72 which is essentially oriented as such on the properties of the flow medium, is subsequently changed by a further correction value in a downstream adder 92.
- This further correction value delivered by a function module 94 essentially takes into account, in the manner of a trim function, the deviation of the currently detected fresh steam temperature from the actual steam temperature which is actually desired with regard to the desired live steam condition. Such a deviation can be made noticeable in particular by the fact that, if the live steam temperature is too high, cooling demand arises in the injection coolers 14, 16, and thus the pressurization of the injection coolers 14, 16 with cooling medium is required.
- the functional module 94 shifts this cooling requirement away from the injection coolers 14, 16 and towards an increased feedwater supply.
- the desired enthalpy of the flow medium at the evaporator outlet is correspondingly lowered in the function module 94, in order to minimize the cooling requirement.
- the enthalpy setpoint value is increased via the correction value provided by the function module 94 and its addition in the adder module 92.
- the feedwater flow control 32 ⁇ of the once-through steam generator 1 ⁇ according to FIG downstream direct control loop, in which a value for the enthalpy of the flow medium at the evaporator outlet is determined in a function module 100 on the basis of the measured values in the water storage 6 and compared in a differentiation module 102 with the desired enthalpy, ie with the target enthalpy value.
- the setpoint-actual deviation is ascertained, which is superimposed, via a downstream regulator 104 in an adder 106, on the desired value for the feedwater mass flow provided by the divider 34.
- This superimposition is suitably delayed and damped, so that this control intervention only in case of need, so too rough control deviation, intervenes.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Air Conditioning Control Device (AREA)
- Central Heating Systems (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08853664A EP2212618B1 (de) | 2007-11-28 | 2008-11-14 | Verfahren zum betreiben eines durchlaufdampferzeugers sowie zwangdurchlaufdampferzeuger |
| PL08853664T PL2212618T3 (pl) | 2007-11-28 | 2008-11-14 | Sposób eksploatacji przepływowej wytwornicy pary oraz wytwornica pary z przepływem wymuszonym |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07023081A EP2065641A3 (de) | 2007-11-28 | 2007-11-28 | Verfahren zum Betrieben eines Durchlaufdampferzeugers sowie Zwangdurchlaufdampferzeuger |
| PCT/EP2008/065522 WO2009068446A2 (de) | 2007-11-28 | 2008-11-14 | Verfahren zum betreiben eines durchlaufdampferzeugers sowie zwangdurchlaufdampferzeuger |
| EP08853664A EP2212618B1 (de) | 2007-11-28 | 2008-11-14 | Verfahren zum betreiben eines durchlaufdampferzeugers sowie zwangdurchlaufdampferzeuger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2212618A2 true EP2212618A2 (de) | 2010-08-04 |
| EP2212618B1 EP2212618B1 (de) | 2013-04-03 |
Family
ID=39847492
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07023081A Withdrawn EP2065641A3 (de) | 2007-11-28 | 2007-11-28 | Verfahren zum Betrieben eines Durchlaufdampferzeugers sowie Zwangdurchlaufdampferzeuger |
| EP08853664A Active EP2212618B1 (de) | 2007-11-28 | 2008-11-14 | Verfahren zum betreiben eines durchlaufdampferzeugers sowie zwangdurchlaufdampferzeuger |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07023081A Withdrawn EP2065641A3 (de) | 2007-11-28 | 2007-11-28 | Verfahren zum Betrieben eines Durchlaufdampferzeugers sowie Zwangdurchlaufdampferzeuger |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US9482427B2 (de) |
| EP (2) | EP2065641A3 (de) |
| JP (1) | JP5318880B2 (de) |
| CN (1) | CN102216685B (de) |
| AR (1) | AR069453A1 (de) |
| AU (1) | AU2008328934B2 (de) |
| BR (1) | BRPI0819844A2 (de) |
| CA (1) | CA2706794C (de) |
| ES (1) | ES2402842T3 (de) |
| MY (1) | MY154744A (de) |
| PL (1) | PL2212618T3 (de) |
| PT (1) | PT2212618E (de) |
| RU (1) | RU2010126182A (de) |
| TW (1) | TWI465674B (de) |
| WO (1) | WO2009068446A2 (de) |
| ZA (1) | ZA201001475B (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020088838A1 (de) | 2018-10-29 | 2020-05-07 | Siemens Aktiengesellschaft | Speisewasserregelung für zwangdurchlauf-abhitzedampferzeuger |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2009106563A2 (de) * | 2008-02-26 | 2009-09-03 | Alstom Technology Ltd | Verfahren zur regelung eines dampferzeugers und regelschaltung für einen dampferzeuger |
| EP2194320A1 (de) | 2008-06-12 | 2010-06-09 | Siemens Aktiengesellschaft | Verfahren zum Betreiben eines Durchlaufdampferzeugers sowie Zwangdurchlaufdampferzeuger |
| DE102010042458A1 (de) | 2010-10-14 | 2012-04-19 | Siemens Aktiengesellschaft | Verfahren zum Betreiben einer kombinierten Gas- und Dampfturbinenanlage sowie zur Durchführung des Verfahrens hergerichtete Gas- und Dampfturbinenanlage und entsprechende Regelvorrichtung |
| DE102011004277A1 (de) * | 2011-02-17 | 2012-08-23 | Siemens Aktiengesellschaft | Verfahren zum Betrieb eines direkt beheizten, solarthermischen Dampferzeugers |
| DE102011076968A1 (de) * | 2011-06-06 | 2012-12-06 | Siemens Aktiengesellschaft | Verfahren zum Betreiben eines Umlauf-Abhitzedampferzeugers |
| EP2789813A1 (de) * | 2013-04-10 | 2014-10-15 | Siemens Aktiengesellschaft | Verfahren zum flexiblen Betrieb einer Kraftwerksanlage |
| DE102014206012A1 (de) * | 2014-03-31 | 2015-10-01 | Mtu Friedrichshafen Gmbh | Verfahren zur Regelung eines Dampfgehalts eines in einem Verdampfer eines Systems zur Durchführung eines thermodynamischen Kreisprozesses erhitzten Arbeitsmediums, Steuereinrichtung für ein System, System für einen thermodynamischen Kreisprozess, und Anordnung aus einer Brennkraftmaschine und einem System |
| DE102014222682A1 (de) | 2014-11-06 | 2016-05-12 | Siemens Aktiengesellschaft | Regelungsverfahren zum Betreiben eines Durchlaufdampferzeugers |
| CN104595884A (zh) * | 2015-01-29 | 2015-05-06 | 上海上电电力工程有限公司 | 用于强迫循环汽包锅炉维持scr正常运行的烟气升温系统 |
| US20170122133A1 (en) * | 2015-11-02 | 2017-05-04 | General Electric Company | Steam turbine inlet temperature control system, computer program product and related methods |
| EP4540558A1 (de) | 2022-06-20 | 2025-04-23 | Metso Metals Oy | Anordnung und verfahren zur wärmeübertragungsbeurteilung |
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-
2007
- 2007-11-28 EP EP07023081A patent/EP2065641A3/de not_active Withdrawn
-
2008
- 2008-11-14 ES ES08853664T patent/ES2402842T3/es active Active
- 2008-11-14 CN CN200880116657.7A patent/CN102216685B/zh active Active
- 2008-11-14 JP JP2010535331A patent/JP5318880B2/ja active Active
- 2008-11-14 CA CA2706794A patent/CA2706794C/en active Active
- 2008-11-14 BR BRPI0819844-6A patent/BRPI0819844A2/pt not_active IP Right Cessation
- 2008-11-14 MY MYPI2010002487A patent/MY154744A/en unknown
- 2008-11-14 US US12/743,881 patent/US9482427B2/en active Active
- 2008-11-14 EP EP08853664A patent/EP2212618B1/de active Active
- 2008-11-14 PT PT88536644T patent/PT2212618E/pt unknown
- 2008-11-14 PL PL08853664T patent/PL2212618T3/pl unknown
- 2008-11-14 RU RU2010126182/06A patent/RU2010126182A/ru not_active Application Discontinuation
- 2008-11-14 AU AU2008328934A patent/AU2008328934B2/en not_active Ceased
- 2008-11-14 WO PCT/EP2008/065522 patent/WO2009068446A2/de not_active Ceased
- 2008-11-26 TW TW097145590A patent/TWI465674B/zh not_active IP Right Cessation
- 2008-11-28 AR ARP080105181A patent/AR069453A1/es not_active Application Discontinuation
-
2010
- 2010-03-01 ZA ZA201001475A patent/ZA201001475B/xx unknown
Non-Patent Citations (1)
| Title |
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| See references of WO2009068446A2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020088838A1 (de) | 2018-10-29 | 2020-05-07 | Siemens Aktiengesellschaft | Speisewasserregelung für zwangdurchlauf-abhitzedampferzeuger |
| US11530812B2 (en) | 2018-10-29 | 2022-12-20 | Siemens Energy Global GmbH & Co. KG | Feedwater control for a forced-flow waste-heat steam generator |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2402842T3 (es) | 2013-05-09 |
| CN102216685A (zh) | 2011-10-12 |
| EP2212618B1 (de) | 2013-04-03 |
| PT2212618E (pt) | 2013-05-24 |
| TWI465674B (zh) | 2014-12-21 |
| RU2010126182A (ru) | 2012-01-10 |
| WO2009068446A2 (de) | 2009-06-04 |
| US9482427B2 (en) | 2016-11-01 |
| WO2009068446A3 (de) | 2010-07-15 |
| EP2065641A2 (de) | 2009-06-03 |
| JP5318880B2 (ja) | 2013-10-16 |
| AU2008328934B2 (en) | 2013-05-23 |
| CA2706794C (en) | 2016-03-22 |
| MY154744A (en) | 2015-07-15 |
| AU2008328934A1 (en) | 2009-06-04 |
| BRPI0819844A2 (pt) | 2015-06-16 |
| CN102216685B (zh) | 2014-10-22 |
| CA2706794A1 (en) | 2009-06-04 |
| TW200936957A (en) | 2009-09-01 |
| AR069453A1 (es) | 2010-01-20 |
| EP2065641A3 (de) | 2010-06-09 |
| PL2212618T3 (pl) | 2013-09-30 |
| JP2011504996A (ja) | 2011-02-17 |
| US20100288210A1 (en) | 2010-11-18 |
| ZA201001475B (en) | 2010-10-27 |
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