EP1421317A2 - Procede de mise en marche d'un generateur de vapeur comportant un canal a gaz chauffant pouvant etre traverse par un gaz chauffant dans une direction approximativement horizontale et generateur de vapeur - Google Patents

Procede de mise en marche d'un generateur de vapeur comportant un canal a gaz chauffant pouvant etre traverse par un gaz chauffant dans une direction approximativement horizontale et generateur de vapeur

Info

Publication number
EP1421317A2
EP1421317A2 EP02797600A EP02797600A EP1421317A2 EP 1421317 A2 EP1421317 A2 EP 1421317A2 EP 02797600 A EP02797600 A EP 02797600A EP 02797600 A EP02797600 A EP 02797600A EP 1421317 A2 EP1421317 A2 EP 1421317A2
Authority
EP
European Patent Office
Prior art keywords
evaporator tubes
heating gas
evaporator
flow medium
steam generator
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
Application number
EP02797600A
Other languages
German (de)
English (en)
Other versions
EP1421317B1 (fr
Inventor
Joachim Franke
Rudolf Kral
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP02797600A priority Critical patent/EP1421317B1/fr
Publication of EP1421317A2 publication Critical patent/EP1421317A2/fr
Application granted granted Critical
Publication of EP1421317B1 publication Critical patent/EP1421317B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B35/00—Control systems for steam boilers
    • F22B35/06—Control systems for steam boilers for steam boilers of forced-flow type
    • F22B35/14—Control systems for steam boilers for steam boilers of forced-flow type during the starting-up periods, i.e. during the periods between the lighting of the furnaces and the attainment of the normal operating temperature of the steam boilers
    • 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
    • F22B1/1807—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 using the exhaust gases of combustion engines
    • F22B1/1815—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 using the exhaust gases of combustion engines using the exhaust gases of gas-turbines

Definitions

  • the invention relates to a method for starting up a steam generator with a heating gas channel through which an approximately horizontal heating gas direction can flow, in which at least one continuous heating surface formed from a number of approximately vertically arranged evaporator tubes arranged to flow through a flow medium is arranged. It further relates to such a steam generator.
  • the heat contained in the relaxed working fluid or heating gas from the gas turbine is used to generate steam for the steam turbine.
  • the heat transfer takes place in a waste heat steam generator connected downstream of the gas turbine, in which a number of heating surfaces for water preheating, steam generation and steam superheating are usually arranged.
  • the heating surfaces are connected to the water-steam cycle of the steam turbine.
  • the water-steam cycle usually comprises several, e.g. three pressure levels, each pressure level having an evaporative heating surface.
  • a continuous steam generator In contrast to a natural or forced circulation steam generator, a continuous steam generator is not subject to any pressure limitation, so that live steam pressures well above the critical pressure of water (P Kr i ⁇ 221 bar) - where there are only slight differences in density between liquid-like and steam-like medium - are possible , A high live steam pressure favors high thermal efficiency and thus low CO 2 emissions from a fossil-fired power plant.
  • a continuous steam generator has a simple construction in comparison to a circulation steam generator and can therefore be produced with particularly little effort. The use of a steam generator designed according to the continuous flow principle as waste heat steam generator of a gas and steam turbine system is therefore particularly favorable in order to achieve a high overall efficiency of the gas and steam turbine system with a simple construction.
  • a heat recovery steam generator in a horizontal design offers particular advantages in terms of manufacturing effort, but also with regard to the maintenance work required, in which the heating medium or heating gas, in particular the exhaust gas from the gas turbine, is guided through the steam generator in an approximately horizontal flow direction.
  • Such a steam generator designed in a horizontal construction, is known from EP 0 944 801 B1.
  • the boundary condition must be observed when operating this steam generator that water cannot flow out of the evaporator tubes forming the once-through heating surface into a downstream superheater.
  • this can be problematic especially when starting the steam generator.
  • the steam generator starts up a so-called water emission can occur.
  • the invention is therefore based on the object of specifying a method for starting up a steam generator of the type mentioned above, with which a high level of operational safety is ensured even with a particularly simple construction.
  • a steam generator that is particularly suitable for carrying out the method is to be specified.
  • this object is achieved according to the invention in that at least some of the evaporator tubes forming the continuous heating surface are partially filled with unevaporated flow medium before the heating gas channel is supplied with heating gas up to a predeterminable desired fill level.
  • the invention is based on the consideration that, in order to maintain a high level of operational safety, it must also be ruled out while the steam generator is starting up should that unevaporated flow medium can get into the superheater downstream of the evaporator tubes. For a particularly simple construction, however, this should be ensured by dispensing with the water-steam separation device usually provided in continuous steam generators.
  • the evaporator tubes are only partially filled with undevaporated flow medium before starting.
  • the filling quantity and thus the target filling level for this first filling before the heating gas duct is exposed to heating gas should be selected in such a way that, on the one hand, water emission due to the first steam formation is avoided, and on the other hand, insufficient cooling of the evaporator tubes when starting is avoided.
  • the target fill level is expediently selected such that the evaporator tubes are not supplied with flow medium at the start of the start-up process.
  • the flow medium which is already in the evaporator tubes is initially evaporated.
  • the unevaporated flow medium, which lies within the respective evaporator tube downstream from the respective location of the start of evaporation, is pushed through the vapor bubble that is formed into the previously unfilled zone of the respective evaporator tube. This portion of the unevaporated flow medium can evaporate there or, if the mass flow densities in the evaporator tubes are sufficiently low, falls back into the lower area of the respective evaporator tube.
  • the partial portion located in the upper area of the respective evaporator tube which is initially not filled with flow medium and serves as a compensation space for the column underneath as a flow medium, can
  • the area of the respective evaporator tube should be dimensioned sufficiently large so that an escape of undevaporated flow medium from the respective evaporator tube can be reliably ruled out even when evaporation begins.
  • the actual fill level of the respective evaporator tubes is advantageously adjusted to the predefinable target fill level.
  • the respective actual fill level is advantageously determined by means of a differential pressure measurement between the lower pipe inlet and the upper pipe outlet of the respective evaporator pipe, the measurement value obtained thereby expediently being used as the basis for supplying the respective evaporator pipe with undevaporated flow medium.
  • the initial filling level of the evaporator tubes which is decisive, is advantageously predetermined as a function of the start-up heating curve provided in each case.
  • the start-up heating process is expediently determined on the basis of characteristic values for the boiler geometry and / or the time course of the heat supply by the heating gas. For a large number of such parameter combinations, a respectively adapted start-up heating curve can be stored in a database assigned to the steam generator, with the current len heating cycle previous heating cycles can be taken into account.
  • the steam generator In the starting phase of the start-up process, i.e. H.
  • the steam generator In a period of time immediately after the heating gas channel has started to be supplied with heating gas, the steam generator is intended to be operated without further loading of the evaporator tubes with flow medium or feed water.
  • the delivery of feed water or unevaporated flow medium into the evaporator tubes is expedient after the onset
  • Vapor formation in the evaporator tubes is added, so that sufficient cooling of the respective evaporator tube is ensured in any case even after the onset of vapor formation.
  • the onset of steam formation is advantageously detected by means of an increase in pressure in the water-steam cycle.
  • a measurement value characteristic of a pressure of the flow medium is advantageously monitored after the heating gas channel has been exposed to heating gas, and if this measurement value exceeds a predefinable limit value, a continuous supply of feed water to the evaporator tubes is started.
  • the feed water is expediently fed into the evaporator tubes in such a way that the escape of undevaporated flow medium from the evaporator tubes is reliably avoided.
  • the supply of feed water into the evaporator tubes is advantageously regulated in such a way that superheated steam emerges at the upper tube outlet of the or each evaporator tube. To ensure that no unevaporated flow medium can get into the downstream superheater, the provision of only relatively weakly superheated steam at the outlet of the evaporator tubes can be sufficient.
  • the mass flow density is advantageously set when the evaporator tubes are supplied with flow medium in such a way that an evaporator tube which is more heated in comparison to another evaporator tube of the same continuous heating surface has a higher throughput of the flow medium in comparison with the other evaporator tube .
  • the flow heating surface of the steam generator thus shows, in the nature of the flow characteristics of a natural circulation evaporator heating surface (natural circulation characteristic), with different heating of individual evaporator tubes, a self-stabilizing behavior which, without the need for external influence, leads to an adaptation of the outlet-side temperatures even in differently heated flow medium evaporator tubes connected in parallel.
  • the evaporator tubes are provided with a comparatively low mass flow density.
  • a common differential pressure measuring device is assigned to a distributor connected upstream of the evaporator pipes and to an outlet collector connected downstream of the evaporator pipes.
  • the level in the evaporator tubes can be monitored in a particularly advantageous manner by means of the differential pressure measuring device, so that a characteristic characteristic value can be used as a suitable reference variable for supplying the evaporator tubes.
  • the advantages achieved by the invention consist in particular in that, by only partially filling the evaporator tubes with unevaporated flow medium before the heating gas channel is first exposed to heating gas, the start-up process with a high level of operational safety, in particular with sufficient cooling of the evaporator tubes while reliably avoiding introduction undevaporated flow medium in the overflow downstream of the evaporator tubes superheater is guaranteed, the steam generator can be kept particularly simple in terms of construction.
  • the comparatively complex water-steam separation system can be completely dispensed with without having to take measures that are structurally as complex as, for example, the use of particularly robust or high-quality pipe materials.
  • a particularly safe and stable operating behavior can be achieved in particular by applying a comparatively low mass flow density to the evaporator tubes, so that unevaporated flow medium located in the evaporator tubes remains in the respective evaporator tube even when steam formation begins and is ultimately also evaporated there.
  • FIG. 1 An embodiment of the invention is explained in more detail with reference to a drawing.
  • the figure shows a simplified representation in longitudinal section of a steam generator in a horizontal construction.
  • the steam generator 1 is connected in the manner of a heat recovery steam generator downstream of a gas turbine, not shown.
  • the steam generator 1 has a surrounding wall 2 which forms a heating gas duct 6 for the exhaust gas from the gas turbine, through which the heating gas direction x can be flowed in an approximately horizontal direction indicated by the arrows 4.
  • a number of evaporator heating surfaces also referred to as continuous heating surfaces 8, 10, are arranged in the heating gas channel 6 according to the continuous flow principle. In the exemplary embodiment, two continuous heating surfaces 8, 10 are shown, but only one or a larger number of continuous heating surfaces can also be provided.
  • the continuous heating surfaces 8, 10 of the steam generator 1 each comprise a plurality of, in the manner of a tube bundle
  • the evaporator tubes 14, 15 are each aligned approximately vertically, a plurality of evaporator tubes 14 and 15 being arranged side by side as seen in the heating gas direction x. Only one of the evaporator tubes 14 and 15 arranged next to one another in this way is visible.
  • the evaporator tubes 14 of the first continuous heating surface 8 have a common distributor 16 upstream and a common outlet header 18 on the flow medium side.
  • the outlet header 18 of the first continuous heating surface 8 is in turn connected on the outlet side via a downpipe system 20 to a distributor 22 assigned to the second continuous heating surface 10.
  • An outlet header 24 is connected downstream of the second continuous heating plate 10.
  • the evaporator system formed by the continuous heating surfaces 8, 10 can be acted upon by flow medium W, which evaporates once it passes through the evaporator system and is discharged as steam D after exiting the evaporator system and is supplied to a superheater heating surface 26 downstream of the outlet collector 24 of the second continuous heating surface 10 ,
  • the pipe system formed from the continuous heating surfaces 8, 10 and the superheater heating surface 26 connected downstream is connected to the water-steam circuit of a steam turbine, not shown in any more detail.
  • a number of further heating surfaces 28, each indicated schematically in the figure, are connected in the water-steam circuit of the steam turbine.
  • the heating surfaces 28 can be, for example, medium-pressure evaporators, low-pressure evaporators and / or preheaters.
  • the evaporator system formed by the continuous heating surfaces 8, 10 is designed such that it is suitable for feeding the evaporator tubes 14, 15 with a comparatively low mass flow density, the evaporator tubes 14, 15 having a natural circulation characteristic.
  • This natural circulation characteristic shows one in comparison to another Evaporator tube 14 or 15 of the same continuous heating surface 8 or 10 more-heated evaporator tube 14 or 15 has a higher throughput of the flow medium W in comparison to the further evaporator tube 14 or 15.
  • the steam generator 1 is kept in a comparatively simple construction.
  • the second once-through heating surface 10 is connected directly to the superheater heating surface 26 connected to it, without a comparatively complex water-steam separation system or separating system, so that the outlet header 24 of the second once-through heating surface 10 is connected directly via an overflow line and without the interposition of further components is connected to a distributor of the superheater heating surface 26.
  • the steam generator 1 is operated when starting up with regard to these marginal specifications.
  • the steam generator 1 is in particular operated during start-up in such a way that, on the one hand, sufficient cooling of the evaporator tubes 14, 15 forming the continuous heating surfaces 8, 10 and of the steam generator tubes forming the superheater heating surface 26 is always ensured.
  • the steam generator 1 is also operated when starting up in such a way that even without a water-steam separation system connected between the second continuous heating surface 10 and the superheater heating surface 26, the feeding of undevaporated flow medium W into the superheater heating surface 26 is reliably avoided.
  • the evaporator tubes 14 forming the first continuous heating surface 8 are filled with undevaporated flow medium W before the heating gas channel 6 is first supplied with heating gas from the upstream gas turbine up to a predeterminable desired fill level, indicated by the broken line 30 in the figure.
  • the actual fill level reached in the evaporator tubes 14 is determined by a differential pressure measurement between the lower distributor 16 and the upper outlet collector 18.
  • a common differential pressure measuring device 32 is assigned to the distributor 16 and the outlet header 18.
  • the further filling with unevaporated flow medium W is controlled in such a way that the predetermined target filling level is assumed within a predetermined tolerance band.
  • any remaining unevaporated flow medium W is transferred via the downpipe system 20 into the downstream second continuous heating surface 10, where it is completely evaporated.
  • the second continuous heating surface 10 thus absorbs the remaining water output from the first continuous heating surface 8 in each case. Because the evaporator tubes 14 are only partially filled before the actual start-up process begins, no or almost no unevaporated flow medium W thus enters the outlet header 24 downstream of the second continuous heating surface 10 or the superheater heating surface 26 downstream thereof.
  • the partial filling of the evaporator tubes 14 forming the first continuous heating surface 8 is thus provided; the second continuous heating surface 10 initially remains unfilled.
  • partial filling of the evaporator tubes 15 forming the second continuous heating surface 10 can also be provided with an analogous procedure.
  • a determination as to whether steam production has already started in the evaporator tubes 14 and vaporized flow medium or steam D enters the outlet collector 24 is made by measuring the pressure of the flow medium W or steam D, in particular at the outlet collector 24 or at the outlet of the superheater heating surface 26 a correspondingly arranged pressure sensor is used to record and monitor a measured value characteristic of the pressure of the vaporized flow medium or steam D in the outlet header 24 or at the outlet of the superheater heating surface.
  • the beginning of steam production is concluded on the basis of the onset of pressure rise, which can reach values of a few bar per minute when steam begins to form.
  • the operational delivery of feed water or unevaporated flow medium W is taken up in the distributor 16 assigned to the continuous heating surface 8.
  • the supply of feed water or unevaporated flow medium W is controlled in the evaporator tubes 14 in such a way that superheated steam D, ie steam D without wet components, emerges at the upper tube outlet 34 of the evaporator tubes 14.
  • the evaporator tubes 14 when the evaporator tubes 14 are supplied with flow medium W, their mass flow density is set such that an evaporator tube 14 which is more heated in comparison to another evaporator tube 14 has a higher throughput of the flow medium W in comparison with the other evaporator tube 14. This ensures that the continuous heating surface 8 shows a self-stabilizing behavior even with different heating of individual evaporator tubes 14 in the manner of the flow characteristics of a natural circulation evaporator heating surface.
  • the start-up process of the steam generator 1 is carried out here, it is ensured that, on the one hand, there is sufficient cooling for the evaporator tubes 14, 15 at all times and, on the other hand, that undevaporated flow medium W never enters the superheater heating surface 26 downstream of the second continuous heating surface 10. Compliance with these boundary conditions is to be ensured in particular by a suitable choice of the desired fill level for the evaporator tubes 14 before the start of the actual start-up process. Specification of the target fill level for the evaporator tubes 14 takes place precisely in such a way that, on the basis of the intended starting process, exactly these boundary conditions are met. For this purpose, the target fill level is specified as a function of the intended start-up heating curve for the steam generator 1.
  • the start-up heating process is determined on the basis of characteristic values for the boiler geometry and material and / or the type of fuel. In particular, it can be provided that in the manner of a database in a
  • Memory module a variety of possible start-up heating curves suitable for the present steam generator 1 from which a course adapted to the current situation is selected on the basis of operational data and used as a basis for specifying the target fill level.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

L'invention concerne un procédé de mise en marche d'un générateur de vapeur (1) comprenant un canal à gaz chauffant (6) pouvant être traversé par un gaz chauffant dans une direction approximativement horizontale et dans lequel est disposée au moins une surface chauffante continue (8) formée par une pluralité de tuyaux de vaporisation (14) disposés de manière approximativement verticale et montés en parallèle de manière à être traversés par une substance d'écoulement (W, D). Ce procédé garantit une sécurité de fonctionnement élevée même pour un générateur de vapeur (1) présentant une construction particulièrement simple. Selon la présente invention, au moins quelques tuyaux de vaporisation (14) sont partiellement remplis d'une substance d'écoulement non vaporisée (W) avant que le canal à gaz chauffant (6) soit alimenté en gaz chauffant jusqu'à un état de remplissage théorique prédéterminé.
EP02797600A 2001-08-31 2002-08-20 Procede de mise en marche d'un generateur de vapeur comportant un canal a gaz chauffant pouvant etre traverse par un gaz chauffant dans une direction approximativement horizontale et generateur de vapeur Expired - Lifetime EP1421317B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02797600A EP1421317B1 (fr) 2001-08-31 2002-08-20 Procede de mise en marche d'un generateur de vapeur comportant un canal a gaz chauffant pouvant etre traverse par un gaz chauffant dans une direction approximativement horizontale et generateur de vapeur

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP01121027 2001-08-31
EP01121027A EP1288567A1 (fr) 2001-08-31 2001-08-31 Générateur de vapeur et procédé de démarrage d'un générateur de vapeur ayant un canal de gas de chauffage, celui-ci étant traversé par le gas de chauffage avec une direction sensiblement horizontale
EP02797600A EP1421317B1 (fr) 2001-08-31 2002-08-20 Procede de mise en marche d'un generateur de vapeur comportant un canal a gaz chauffant pouvant etre traverse par un gaz chauffant dans une direction approximativement horizontale et generateur de vapeur
PCT/EP2002/009312 WO2003021148A2 (fr) 2001-08-31 2002-08-20 Procede de mise en marche d'un generateur de vapeur comportant un canal a gaz chauffant pouvant etre traverse par un gaz chauffant dans une direction approximativement horizontale et generateur de vapeur

Publications (2)

Publication Number Publication Date
EP1421317A2 true EP1421317A2 (fr) 2004-05-26
EP1421317B1 EP1421317B1 (fr) 2012-11-28

Family

ID=8178502

Family Applications (2)

Application Number Title Priority Date Filing Date
EP01121027A Withdrawn EP1288567A1 (fr) 2001-08-31 2001-08-31 Générateur de vapeur et procédé de démarrage d'un générateur de vapeur ayant un canal de gas de chauffage, celui-ci étant traversé par le gas de chauffage avec une direction sensiblement horizontale
EP02797600A Expired - Lifetime EP1421317B1 (fr) 2001-08-31 2002-08-20 Procede de mise en marche d'un generateur de vapeur comportant un canal a gaz chauffant pouvant etre traverse par un gaz chauffant dans une direction approximativement horizontale et generateur de vapeur

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP01121027A Withdrawn EP1288567A1 (fr) 2001-08-31 2001-08-31 Générateur de vapeur et procédé de démarrage d'un générateur de vapeur ayant un canal de gas de chauffage, celui-ci étant traversé par le gas de chauffage avec une direction sensiblement horizontale

Country Status (12)

Country Link
US (1) US7281499B2 (fr)
EP (2) EP1288567A1 (fr)
JP (2) JP2005523410A (fr)
KR (1) KR100742407B1 (fr)
CN (1) CN1289854C (fr)
CA (1) CA2458390C (fr)
CZ (1) CZ2004403A3 (fr)
ES (1) ES2395897T3 (fr)
PL (1) PL199757B1 (fr)
RU (1) RU2290563C2 (fr)
SK (1) SK1552004A3 (fr)
WO (1) WO2003021148A2 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1512907A1 (fr) * 2003-09-03 2005-03-09 Siemens Aktiengesellschaft Procédé pour le demarrage d'un générateur de vapeur à passage unique et le générateur de vapeur à passage unique pour la mise en oeuvre du procédé
WO2007009176A1 (fr) * 2005-07-19 2007-01-25 Ceramic Fuel Cells Limited Générateur de vapeur
JP4847213B2 (ja) * 2006-05-29 2011-12-28 バブコック日立株式会社 貫流型排熱回収ボイラ
DE102008008637B4 (de) * 2008-02-12 2017-01-05 Man Diesel & Turbo Se Kondensationsdampfturbine mit Füllstandsfassungseinrichtung und Verfahren zur Regelung des Füllstandes
EP2271875B1 (fr) * 2008-03-27 2016-10-26 General Electric Technology GmbH Générateur de vapeur continu et chambre d égalisation
EP2194320A1 (fr) * 2008-06-12 2010-06-09 Siemens Aktiengesellschaft Procédé de fonctionnement d'un générateur de vapeur à passage unique et générateur de vapeur à passage unique
EP2180250A1 (fr) * 2008-09-09 2010-04-28 Siemens Aktiengesellschaft Générateur de vapeur en continu
DE102009012322B4 (de) * 2009-03-09 2017-05-18 Siemens Aktiengesellschaft Durchlaufverdampfer
DE102009012320A1 (de) * 2009-03-09 2010-09-16 Siemens Aktiengesellschaft Durchlaufverdampfer
DE102009012321A1 (de) * 2009-03-09 2010-09-16 Siemens Aktiengesellschaft Durchlaufverdampfer
DE102009024587A1 (de) * 2009-06-10 2010-12-16 Siemens Aktiengesellschaft Durchlaufverdampfer
NL2003596C2 (en) * 2009-10-06 2011-04-07 Nem Bv Cascading once through evaporator.
CN103090345A (zh) * 2011-10-28 2013-05-08 西安科弘厨房工程设备有限责任公司 太阳能/复合能源封闭循环相变供热系统
WO2013108218A2 (fr) 2012-01-17 2013-07-25 Alstom Technology Ltd Agencement de tubes dans un évaporateur horizontal à passage unique
US9696098B2 (en) 2012-01-17 2017-07-04 General Electric Technology Gmbh Method and apparatus for connecting sections of a once-through horizontal evaporator
US9739478B2 (en) 2013-02-05 2017-08-22 General Electric Company System and method for heat recovery steam generators
US9097418B2 (en) * 2013-02-05 2015-08-04 General Electric Company System and method for heat recovery steam generators
CN104896500B (zh) * 2014-11-18 2017-12-08 郭志男 一种固体燃料燃烧去烟降尘装置
EP3495732B1 (fr) 2017-12-08 2024-02-14 General Electric Technology GmbH Systèmes d'évaporateur à passage unique
EP3495729B1 (fr) 2017-12-08 2020-11-25 General Electric Technology GmbH Systèmes d'évaporateur à passage unique
EP3495730B1 (fr) 2017-12-08 2024-01-24 General Electric Technology GmbH Systèmes d'évaporateur à passage unique
EP3495731B1 (fr) 2017-12-08 2022-02-16 General Electric Technology GmbH Systèmes d'évaporateur à passage unique
EP3842723A1 (fr) * 2019-12-23 2021-06-30 Hamilton Sundstrand Corporation Échangeur de chaleur fractal à deux étages

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094268B (de) * 1960-12-01 Arum.: L. S. C. Steinmüller G.m.b.H., Gumimersbach (RhId.) Verfahren zum Auffüllen eines Dampfkessels
FR1593128A (fr) * 1967-12-09 1970-05-25
CH632331A5 (de) * 1978-10-03 1982-09-30 Sulzer Ag Verfahren zum anfahren eines zwanglaufdampferzeugers.
JPS60178203A (ja) * 1984-02-24 1985-09-12 株式会社小松製作所 廃熱貫流ボイラの過熱温度制御装置
US4685426A (en) * 1986-05-05 1987-08-11 The Babcock & Wilcox Company Modular exhaust gas steam generator with common boiler casing
EP0439765B1 (fr) * 1990-01-31 1995-05-03 Siemens Aktiengesellschaft Générateur de vapeur
DE4303613C2 (de) * 1993-02-09 1998-12-17 Steinmueller Gmbh L & C Verfahren zur Erzeugung von Dampf in einem Zwangsdurchlaufdampferzeuger
DE19528438C2 (de) * 1995-08-02 1998-01-22 Siemens Ag Verfahren und System zum Anfahren eines Durchlaufdampferzeugers
DE19651678A1 (de) * 1996-12-12 1998-06-25 Siemens Ag Dampferzeuger
DE19717158C2 (de) * 1997-04-23 1999-11-11 Siemens Ag Durchlaufdampferzeuger und Verfahren zum Anfahren eines Durchlaufdampferzeugers
DE19907451A1 (de) * 1999-02-22 2000-08-24 Abb Alstom Power Ch Ag Verfahren zum Anfahren eines Zwangdurchlauf-Abhitzekessels und Vorrichtung zur Durchführung des Verfahrens
US6957630B1 (en) * 2005-03-31 2005-10-25 Alstom Technology Ltd Flexible assembly of once-through evaporation for horizontal heat recovery steam generator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03021148A2 *

Also Published As

Publication number Publication date
JP2008180501A (ja) 2008-08-07
PL367786A1 (en) 2005-03-07
WO2003021148A2 (fr) 2003-03-13
WO2003021148A3 (fr) 2003-04-17
WO2003021148A8 (fr) 2004-03-04
RU2004109587A (ru) 2005-05-20
RU2290563C2 (ru) 2006-12-27
EP1288567A1 (fr) 2003-03-05
JP4970316B2 (ja) 2012-07-04
CN1543551A (zh) 2004-11-03
EP1421317B1 (fr) 2012-11-28
JP2005523410A (ja) 2005-08-04
KR20040029105A (ko) 2004-04-03
US20060192023A1 (en) 2006-08-31
PL199757B1 (pl) 2008-10-31
US7281499B2 (en) 2007-10-16
ES2395897T3 (es) 2013-02-15
KR100742407B1 (ko) 2007-07-24
CA2458390A1 (fr) 2003-03-13
CA2458390C (fr) 2008-12-30
SK1552004A3 (en) 2004-11-03
CN1289854C (zh) 2006-12-13
CZ2004403A3 (cs) 2004-06-16

Similar Documents

Publication Publication Date Title
EP1421317B1 (fr) Procede de mise en marche d'un generateur de vapeur comportant un canal a gaz chauffant pouvant etre traverse par un gaz chauffant dans une direction approximativement horizontale et generateur de vapeur
EP1848925B1 (fr) Générateur de vapeur de type horizontal
DE2845021C2 (de) Verfahren zum Anfahren eines Zwanglaufdampferzeugers
EP1660814A1 (fr) Procede pour faire demarrer un dispositif de production de vapeur en continu, et dispositif de production de vapeur en continu pour mettre en oeuvre le procede
DE19651678A1 (de) Dampferzeuger
EP2438351B1 (fr) Évaporateur continu
DE102011076968A1 (de) Verfahren zum Betreiben eines Umlauf-Abhitzedampferzeugers
DE19717158C2 (de) Durchlaufdampferzeuger und Verfahren zum Anfahren eines Durchlaufdampferzeugers
DE102010040624A1 (de) Abhitzedampferzeuger
DE19901656A1 (de) Verfahren und Vorrichtung zur Regelung der Temperatur am Austritt eines Dampfüberhitzers
EP3017152B1 (fr) Centrale à cycle combiné gaz-vapeur munie d'un générateur de vapeur à récupération de chaleur et un pre-chauffage du carburant
EP1660812B1 (fr) Générateur de vapeur à passage unique et méthode pour faire fonctionner ledit générateur de vapeur à passage unique
DE102010040623A1 (de) Verfahren zur Regelung einer kurzfristigen Leistungserhöhung einer Dampfturbine
CH497664A (de) Hochdruck-Dampfkraftanlage
DE3236979A1 (de) Zwangsdurchlaufdampferzeuger und verfahren zu seiner inbetriebnahme
EP2409078B1 (fr) Procédé de conception d'un évaporateur continu
EP1537358B1 (fr) Generateur de vapeur construit horizontalement
DE102010043683A1 (de) Fossil befeuerter Dampferzeuger
DE19944920A1 (de) Kombikraftwerk mit Einspritzvorrichtung zum Einspritzen von Wasser in den Frischdampf
DE1965078B2 (de) Verfahren zum gleitdruckbetrieb eines zwanglaufdampferzeu gers
WO1996016298A1 (fr) Installation de production de vapeur selon le principe de circulation naturelle et procede pour amorcer la circulation d'eau dans une telle installation
EP2655811A2 (fr) Procédé pour ajuster une augmentation de puissance de courte durée d'une turbine à vapeur
DE1965078C (de) Verfahren zum Gleitdruckbetrieb eines Zwanglauf da mpferzeugers
DE2006410A1 (de) Verfahren zum Betneb einer Dampfkraft anlage und Anlage zum Durchfuhren des Ver fahrens
EP2625390B1 (fr) Générateur de vapeur à combustibles fossiles

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20040203

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

17Q First examination report despatched

Effective date: 20091216

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 586396

Country of ref document: AT

Kind code of ref document: T

Effective date: 20121215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 50215664

Country of ref document: DE

Effective date: 20130124

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2395897

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20130215

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121128

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130301

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130328

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121128

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121128

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130228

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121128

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121128

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20130829

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 50215664

Country of ref document: DE

Effective date: 20130829

BERE Be: lapsed

Owner name: SIEMENS A.G.

Effective date: 20130831

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121128

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130831

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130820

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130820

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20160811

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20160708

Year of fee payment: 15

Ref country code: FR

Payment date: 20160823

Year of fee payment: 15

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 586396

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170820

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170820

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170820

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170820

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170831

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50215664

Country of ref document: DE

Owner name: SIEMENS ENERGY GLOBAL GMBH & CO. KG, DE

Free format text: FORMER OWNER: SIEMENS AKTIENGESELLSCHAFT, 80333 MUENCHEN, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20210802

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20210812

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20211025

Year of fee payment: 20

Ref country code: ES

Payment date: 20211124

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50215664

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MK

Effective date: 20220819

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20220905

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20220821