EP2054692B1 - Dispositif de nettoyage de chaudières a haute pression - Google Patents

Dispositif de nettoyage de chaudières a haute pression Download PDF

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Publication number
EP2054692B1
EP2054692B1 EP07802955A EP07802955A EP2054692B1 EP 2054692 B1 EP2054692 B1 EP 2054692B1 EP 07802955 A EP07802955 A EP 07802955A EP 07802955 A EP07802955 A EP 07802955A EP 2054692 B1 EP2054692 B1 EP 2054692B1
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EP
European Patent Office
Prior art keywords
boiler
container
cleaning
distribution device
fluid distribution
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.)
Expired - Fee Related
Application number
EP07802955A
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German (de)
English (en)
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EP2054692A1 (fr
Inventor
Manfred Frach
Ulrich Franze
Jürgen Schröder
Stephan Simon
Michaela WÖHLK
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.)
Bergemann GmbH
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Bergemann GmbH
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Filing date
Publication date
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Publication of EP2054692A1 publication Critical patent/EP2054692A1/fr
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Expired - Fee Related legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
    • F23J3/023—Cleaning furnace tubes; Cleaning flues or chimneys cleaning the fireside of watertubes in boilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00—Details
    • F28G15/003—Control arrangements

Definitions

  • the present invention relates to a device for cleaning a boiler with a cleaning fluid having at least one cleaning device, which comprises means for aligning a fluid distribution device to inner regions of the boiler.
  • boilers are considered, which are intended to treat a gas at high pressure and high temperature.
  • Such boilers serve, for example, as heat exchangers for coal gasification plants.
  • coal gasification is meant a series of processes for coal conversion in which ground coal is reacted with water vapor and oxygen at temperatures of 650 ° C to 2,000 ° C and pressures up to 100 bar.
  • synthesis gases are produced with different proportions of hydrogen, carbon monoxide and methane.
  • This synthesis gas serves, for example, as a starting substance for the chemical industry, but it is also possible, for example with high proportions of methane, that the synthesis gas is used as natural gas substitute.
  • the synthesis gas or crude gas is cooled in at least one heat exchanger. If necessary, additional fluids (steam, gases, etc.) can be added, but this is not absolutely necessary. However, it should be noted that this synthesis gas or raw gas on entering such a heat exchanger, for example, after a kind of shell and tube heat exchanger, still temperatures well above 1000 ° C, for example of about 1,400 ° C, has. If necessary, pressures in the range of 50 bar or more in the heat exchanger boiler are maintained.
  • a tube heat exchanger for use in a textile machine, which can be cleaned by means of a cleaning device of impurities.
  • the cleaning device consists of a pressure hose with a nozzle that can be wound on an adjustable role.
  • the cleaning device is arranged in a housing that is connected to the heat exchanger.
  • the pressure hose can be fed to the heat exchanger via a passage in the housing.
  • a device for cleaning a chemical reactor is known, With the aid of this device, a cleaning medium is fed to a reactor, wherein the cleaning agent is sucked off again by a vacuum generator arranged in a housing of the device.
  • the device for cleaning a boiler with a cleaning fluid having at least one cleaning device which comprises means for aligning a fluid distribution to the inner regions of the boiler, has at least one cleaning device, which is surrounded by a container and mountable with at least one fitting to a connecting piece of the boiler.
  • the means for alignment can cause pivoting, moving and / or rotating of the fluid distribution device, possibly also a positioning adjacent to different inner regions of the boiler.
  • the fluid distribution device can be designed as a type of water, steam and / or gas lance, in particular with a nozzle, which can deliver a directed jet of the cleaning fluid.
  • the means for alignment now allow a relative movement to the boiler or to its inner regions, so that optionally different inner regions can be flown with the cleaning fluid.
  • the at least one cleaning device is surrounded by a, preferably gas-tight, container.
  • container is meant in particular a container in the interior of which pressures (well above the atmospheric pressure) can be maintained, which in particular are still above the (possibly even maximum) operating pressure in the interior of the boiler.
  • pressure vessel may be made of high-strength steel, for example.
  • This container or pressure vessel has at least one connecting piece, which is (also pressure-tight) can be mounted on a connecting piece of the boiler.
  • this connection piece is designed in the manner of a pipe attachment to the container, so that the protruding connection piece can be easily positioned to the connecting piece of the boiler.
  • the connection piece can be stirred with connecting elements in order to be able to be aligned precisely with the position of the connection piece.
  • a plurality of connecting pieces may be provided, for example in order to simultaneously realize a plurality of connections to the boiler or to be able to contact different connection variants or connecting pieces of the boiler with an exact fit.
  • the connecting pieces are provided with an end seal, so that only the currently used connecting piece is opened.
  • the device is provided as a kit, wherein the container may be provided with different receiving constructions to include, if necessary, several and / or mutually different, cleaning equipment.
  • the pressure-increasing plant comprises in particular a gas supply device, optionally also a gas discharge device.
  • a gas in particular a so-called purge gas
  • purge gas for example, nitrogen is considered, but it is also possible to introduce other gases, such as those that are also present in the boiler, in the pressure vessel.
  • the pressure booster can be connected to the container in particular with a pressure line and optionally with a pressure sensor.
  • the fluid distribution device is designed to be movable or pivotable at least through the at least one connecting piece.
  • the fluid distribution device can be moved both through the connector and in addition also pivotable or even additionally designed rotatable.
  • in particular means are provided which enable a relative movement of at least one subcomponent of the fluid distribution device through the at least one connecting piece.
  • positioning means are also provided, which initially align the fluid distribution device to the respectively desired connection piece and then at least partially pass it.
  • parts of the cleaning fluid line, the fluid lance eg heavy, tube-like component of an extension of at least 1 meter
  • the nozzle can be moved through the connection piece.
  • a subcomponent of the fluid distribution device can then only be moved through the connection piece when the connection piece substantially implements a vertical connection to the boiler, so that the fluid distribution device can be introduced into the vessel vertically from above, following gravity.
  • a pivoting of the fluid distribution device is preferred when the fluid distribution device through a substantially horizontal connection is introduced via the connector into inner portions of the boiler.
  • the fluid distribution device comprises a flexible hose which can be arranged on a hose reel, and the hose reel is provided in the container.
  • the fluid distribution device comprises, for example, a nozzle which can dip vertically in the direction of the boiler and is arranged on a flexible hose (eg metal hose) that withstands the temperatures and pressures.
  • the fluid distribution device is embodied such that it discharges the cleaning fluid approximately horizontally and / or preferably also upwards against the force of gravity, in particular substantially uniformly in a rotationally symmetrical manner, onto the inner regions of the vessel.
  • the hose In order to allow immersion in the boiler over, for example, 20 or 30 m, the hose is placed on a corresponding hose reel, so that it can be unwound differently far depending on the desired cleaning height.
  • This, relatively large, hose reel is now also positioned in the pressure vessel. This has the advantage that the hose guide is within the same pressure level.
  • Sensors for operating the hose reel are preferably positioned outside the container
  • the device wherein the fluid distribution device comprises a flexible hose which can be moved by means of a drive through the at least one connecting piece, is equipped with a drive arranged in the container.
  • the metal hose is driven frictionally, for example by driven rollers.
  • the rollers are advantageously operable in both directions, so that a wegwegaue fluid distribution is realized.
  • This drive is advantageously arranged in the container, wherein the embodiment described here With the driven rollers readily withstand the conditions prevailing in the operation conditions.
  • the drive for the hose reel and / or displacement sensor for controlling the movement of the hose are positioned outside the container.
  • suitable passages through the container are provided.
  • a plant according to claim 5 comprising at least one boiler for treating a gas at high pressure and high temperature, in which at least one heat exchange surface is provided in the boiler and at least one device according to the invention and a corresponding connection piece is provided on the outside of the vessel wherein the fluid distribution device is positionable so that it can promote a cleaning fluid to the at least one heat exchange surface.
  • This is in particular a heat exchanger boiler, which adjoins the coal gasification plant.
  • This boiler which is designed for example as a cylindrical pressure vessel with membrane walls and Schottsammlung lake (pipe material Inconell 800, AC66) and thereby has a diameter of for example 3 to 5 m and a height of 30 to 50 m, with a gas pressure in the range of 30 to Operated at 50 bar, wherein the inlet temperature of the gas in the boiler in a range of 1,000 ° C to 1,600 ° C is located.
  • SchottMap lake pipe material Inconell 800, AC66
  • a plurality of devices are mounted on the top of the boiler or mounted, so that then vertically fluid distribution can be introduced into the boiler so that they can reach with their cleaning fluid at least portions of the realized there heat exchange surface.
  • the heat exchange surfaces are formed with a plurality of heat exchanger tubes, which are flowed through, for example, by a cooling medium such as water. These heat exchange surfaces are positioned in particular in the upper third of the boiler.
  • the tubes, the contemplation of the cross section of the boiler can now be arranged with a pattern.
  • Such a pattern comprises, for example, a circular arrangement of the tubes at a certain distance from the boiler housing, of which radially inwardly oriented rows are provided to a central region, so that a plurality of heat exchanger sectors are formed in the circumferential direction, for example 10, 12, 14, 16, 18 or 20 in number. It is now preferred that at least one connecting piece is provided for each of these heat exchanger chambers, so that one (or more) cleaning device or one (or more) fluid distribution device penetrates vertically into the boiler via the connecting piece and descend selectively to the desired heat exchanger sector can. In this way, a very targeted and thorough cleaning is possible.
  • the boiler has a plurality of connecting pieces and at least one device can be aligned with a plurality of connecting pieces.
  • the fluid distribution device is aligned together with the container to the respective connecting piece, a pressure-tight connection is generated, and then the cleaning device is activated.
  • closure means are provided on the at least one connecting piece.
  • This closure means are used in particular to seal the connection piece with respect to the external environment, so that, for example, gas exchange from the interior of the boiler into the environment or the container is no longer possible. This ensures that the container can be disconnected, especially then the pressure therein can be eliminated.
  • This on the one hand a preservation of the internal component is achieved, moreover, for example, a mounting flap of the container can be opened to perform a maintenance and / or repair of the arranged inside the container components.
  • At least sensors are provided for determining a degree of soiling of the heat exchange surface or the ambient conditions in the boiler. It is preferred that both types of sensors mentioned above are present.
  • the sensors for determining a degree of contamination of the heat exchange surface it should be noted that although these sensors may be optical or non-contacting sensors, preference is given to heat flow sensors which are brought into heat-conducting contact with the heat exchange surface at certain horizontal levels. Based on the temperature difference, the heat exchange between the passing gas and the heat exchange medium can be detected in the interior of the heat exchanger tubes, so that the degree of slag can be determined in this way.
  • a targeted, selective cleaning of the soiled areas of the heat exchange surface is carried out.
  • the provision of sensors for determining the ambient conditions in the boiler is helpful, for example, to determine the pressure inside the container for the next cleaning process or regulate.
  • a control unit for at least one of the following functions: supply of the cleaning fluid, positioning of the device to the boiler, change of the ambient conditions in the container, detection of operating data of the boiler.
  • the control unit is connected to at least one of the following components: the device, the cleaning fluid supply line, the hose reel, the drive, the connecting piece, a sensor, the pressure increasing device.
  • the control unit for example, make the supply of the cleaning fluid or the deactivation of the supply of the cleaning fluid. Also, for example, taking into account the determined slagging of the heat exchange surface, the positioning of the device or the Fluidverteil sensible done.
  • the ambient conditions in the container relate in particular to the pressure. So especially when adjusting the pressure in the container to select such a pressure that is above the pressure in the boiler, for example, an overpressure of about 50 kPa. Due to the slight overpressure, the purge gas (for example, nitrogen) flows through the connection piece and the connecting piece into the boiler, so that penetration of the synthesis gas into the pressure container is avoided. At the same time, contamination of the components in the container is counteracted.
  • the purge gas for example, nitrogen
  • a fluid-technological connection between the container and the boiler is realized by step (b), for example by opening corresponding blocking and / or closing means.
  • the fluid distribution device is particularly preferably selectively positioned on (only) the polluted sectors and begins there with a cleaning.
  • Step (d) means in particular the supply of a cleaning medium with a pressure which is sufficient to reach the heat exchange surfaces to be cleaned.
  • the pressure has to be chosen in particular such that only wetting (essentially without abrasive action) is realized, whereas with gases the kinetic energy has to be sufficiently high to blow away the contaminants, so that the smallest possible distance between Fluid distribution and heat exchange surface should be realized.
  • identifying a cleaning state is meant in particular that the current cleaning state is detected or measured.
  • a certain cleaning intensity or cleaning time is used as a fixed (time) limit for completing the cleaning process, but a higher-quality cleaning result can be achieved with the first-mentioned variant.
  • the fluidic connection between vessel and vessel is then to be separated in particular so that e.g. powered shut-off and / or closing means are active.
  • the ambient condition in the tank is re-adjusted to the normal atmosphere.
  • This method is particularly advantageous when the container is provided in step (a) with a pressure of at least 30 bar, in particular for example even 50 bar.
  • the container and the corresponding seals are suitable for this purpose.
  • the vessel is charged with nitrogen gas in step (a).
  • a slight overpressure (about 30 to 80 kPa) compared to the pressure in the boiler to realize.
  • a liquid is used as the cleaning fluid, with this being used with an overpressure of 1 to 10 bar, preferably 1 Up to 5 bar, based on the pressure in the boiler is initiated. This is just enough, taking into account the flow velocities of the synthesis gas, in order to be able to connect the areas of the boiler that are more than 200 mm away, for example.
  • the impingement or action of the liquid in the slag leads to a sudden evaporation, with the concomitant sudden volume change causing the slag to burst or flake off.
  • FIG. 1 schematically shows the structure of a coal gasification plant with a device according to the invention for implementing the method according to the invention.
  • the boiler 2 is illustrated, which is designed here with two connecting pieces 8, which are each designed with closure means 15.
  • the connection means 15 are designed with a motor (represented by a circle with an M), while the right connection piece 8 has a closure means 15 in the manner of a flap, which can only be opened manually.
  • a heat exchange surface 14 is shown in the left area, for example, with a series of heat exchange tubes, which are traversed by water.
  • the vertical direction extending tubes and the heat exchange surface 14 has at different horizontal levels sensors 16 for determining the temperature.
  • sensors 16 On the basis of these sensors 16 conclusions about the degree of slagging or contamination of the heat exchange surface 14 can be obtained. If a high pollution is identified, the cleaning process begins, advantageously only in the sufficient actually heavily cleaned sectors of the heat exchange surface 14 is actually made a selective cleaning.
  • the cleaning itself is realized here with the device 1 according to the invention.
  • the device 1 comprises a cleaning device 4, which comprises a hose reel 11, a hose 10, a drive 12 and a fluid distribution device 5. These components are also arranged in a container 6, which withstands pressures of, for example, 60 bar.
  • the container 6 is designed substantially kesselelförmig, wherein a pressure-tight sealed side wall can be separated as a mounting flap for mounting the individual components.
  • the container 6 has a connection piece 7, which can be connected to the connecting piece 8 of the boiler 2. This can be done either directly or, as illustrated here, with a (in particular tubular) intermediate piece.
  • the fluid distribution device 5 has been passed out of the container 6 through the connection piece 7 and the connecting piece 8, so that the fluid distribution device 5 is positioned to the corresponding sectors of the heat exchange surface 14 to be cleaned.
  • the heat exchange surfaces 14 are wetted and also cleaned by the expansion of the liquid.
  • the fluid distribution device 5 is again returned to the interior of the container 6 in a latching position, wherein the tube 10 is rolled up on the hose reel 11 at the same time.
  • the closure means 15 can be controlled by motor, so that the boiler 2 is again tightly closed.
  • the container 6 is charged with a flushing medium, in particular nitrogen. This is introduced by means of the pressure booster 9 in the interior of the container 6. With the help of a sensor 16 in the connection between the pressure booster 9 towards the container 6, the pressure in the interior of the container 6 can be accurately adjusted or regulated (eg, depending on the pressure in the boiler). If the desired pressure is present, you can turn the closure means 15 are opened.
  • the cleaning fluid supply can also be monitored with corresponding sensors (for monitoring the pressure, pressure sensors are provided which are marked with a P).
  • valves and similar apparatus more servo motors 19 are also provided.
  • the servomotors, the sensors and the like are also connected to a control unit 17 via various connections 18 in order to realize a data exchange and / or a control and / or a regulation of various components.
  • This entire system 13 is used in particular for cooling a synthesis gas which flows into the boiler 2 at temperatures above 1,300 ° C. and a pressure above 40 bar.
  • the device 1 shown here allows for the first time the cleaning of heat exchange surfaces in such boilers, which are operated at high pressure and high temperature and that online, ie during operation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cleaning In General (AREA)
  • Incineration Of Waste (AREA)

Abstract

La présente invention concerne un dispositif (1) de nettoyage d'une chaudière (2) avec un fluide de nettoyage (3) comprenant au moins un appareil de nettoyage (4), lequel comprend des moyens d'alignement d'un dispositif de répartition du fluide (5) vers des parties intérieures de la chaudière (2), l'au moins un appareil de nettoyage (4) étant entouré d'un réservoir (6) et pouvant être monté avec au moins une pièce de raccord (7) sur une tubulure de raccord (8) de la chaudière (2). Des possibilités d'utilisation et des procédés de fonctionnement particulièrement préférés sont également expliqués.

Claims (14)

  1. Dispositif (1) pour nettoyer une chaudière (2) avec un fluide de nettoyage (3) avec au moins un appareil de nettoyage (4), lequel moyen comprend des moyens pour orienter une installation de répartition de fluide (5) vers des régions intérieures de la chaudière (2), l'au moins un appareil de nettoyage (4) étant entouré d'un réservoir (6) et le réservoir (6) pouvant être monté avec au moins une pièce de raccordement (7) sur un raccord (8) de la chaudière(2), l'installation de répartition de fluide (5) pouvant être guidée par la pièce de raccordement (7) et par un raccord (8) de la chaudière (2) hors du réservoir (6) dans la chaudière (2) et peut être à nouveau être guidée de retour, caractérisé en ce que le réservoir (6) est connecté à une installation d'augmentation de pression (9), avec laquelle la pression peut être variée dans le réservoir (6) et avec laquelle un gaz laveur peut être déversé dans le réservoir (6).
  2. Dispositif (1) selon la revendication 1, l'installation de répartition de fluide (5) étant réalisée au moins de façon déplaçable ou pivotante grâce à l'au moins une pièce de raccordement (7).
  3. Dispositif (1) selon l'une des revendications précédentes, l'installation de répartition de fluide (5) comprenant un tuyau flexible (10) qui peut être agencé sur un tambour à tuyau (11) et le tambour à tuyau (11) étant mis à disposition dans le réservoir (6).
  4. Dispositif (1) selon l'une des revendications précédentes, l'installation de répartition de fluide (5) comprenant un tuyau flexible (10), lequel étant déplaçable à travers l'au moins un raccord (8) au moyen d'un entraînement (12) et l'entraînement (12) étant mis à disposition dans le réservoir (6).
  5. Installation (13) comprenant au moins une chaudière (2) pour le traitement d'un gaz à pression et à températures élevées, dans laquelle dans la chaudière (2) au moins une surface d'échange de chaleur (14) et à l'extérieur sur la chaudière (2) au moins un dispositif (1) est mis à disposition selon l'une des revendications 1 à 4 ainsi qu'un raccord (8) respectif, l'installation de répartition de fluide (5) pouvant être positionnée de manière telle que cette dernière peut transporter un fluide de nettoyage (3) sur l'au moins une surface d'échange de chaleur (14).
  6. Installation (13) selon la revendication 5, la chaudière (2) ayant une pluralité de raccords (8) et au moins un dispositif (1) peut être orienté en une pluralité de raccords (8).
  7. Installation (13) selon la revendication 5 ou 6, des moyens de fermeture (15) étant mis à disposition sur l'au moins un raccord (8).
  8. Installation (13) selon l'une des revendications 5 à 7, au moins des capteurs (16) pour déterminer un degré d'encrassement de la surface d'échange de chaleur (14) ou des conditions d'environnement dans la chaudière (2) sont mis à disposition.
  9. Installation (13) selon l'une des revendications 5 à 8, une unité de commande (17) étant mise à disposition pour au moins une des fonctions suivantes :
    Alimentation du fluide de nettoyage (3), positionnement du dispositif (1) par rapport à la chaudière (2), modification des conditions d'environnement dans le réservoir (6), relever des données d'exploitation de la chaudière (2).
  10. Procédé destiné au nettoyage d'une installation (13) se trouvant en opération selon l'une des revendications 5 à 9 avec au moins une chaudière (2) pour le traitement d'un gaz à pression et température élevés avec au moins les étapes suivantes :
    (a) Adapter une condition d'environnement dans le réservoir (6) à la condition d'environnement dans la chaudière (2) ;
    (b) connecter le réservoir (6) avec la chaudière (2) à l'intermédiaire de la pièce de raccordement (7) et du raccord (8) ;
    (c) orienter l'installation de répartition de fluide (5) vers des régions internes de la chaudière (2);
    (d) convoyer un fluide de nettoyage (3) sur les régions internes de la chaudière (2).
  11. Procédé selon la revendication 10, au moins une des étapes suivantes comprenant l'achèvement du processus de nettoyage :
    (e) Identifier un état de nettoyage ;
    (f) positionner l'installation de répartition de fluide (5) dans le réservoir (6) dans une position de crantage ;
    (g) séparer le réservoir (6) de la chaudière (2) à l'intermédiaire de la pièce de raccordement (7) et le raccord (8) ;
    (h) adapter la condition d'environnement dans le réservoir (6) à l'ambiance extérieure de l'installation (13).
  12. Procédé selon la revendication 10 ou 11, dans l'étape (a) le réservoir (6) étant chargé d'une pression d'au moins 30 bar.
  13. Procédé selon l'une des revendications 10 à 12, le réservoir (6) étant chargé de gaz d'azote dans l'étape (a).
  14. Procédé selon l'une des revendications 10 à 12, comme fluide de nettoyage (3) un liquide étant utilise, qui est déversé avec une surpression d'un bar à 10 bar en fonction de la pression dans la chaudière (2).
EP07802955A 2006-09-04 2007-08-28 Dispositif de nettoyage de chaudières a haute pression Expired - Fee Related EP2054692B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006041742A DE102006041742A1 (de) 2006-09-04 2006-09-04 Vorrichtung zur Reinigung von Hochdruckkesseln
PCT/EP2007/058938 WO2008028844A1 (fr) 2006-09-04 2007-08-28 Dispositif de nettoyage de chaudières a haute pression

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Publication Number Publication Date
EP2054692A1 EP2054692A1 (fr) 2009-05-06
EP2054692B1 true EP2054692B1 (fr) 2011-06-15

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US (1) US20090217888A1 (fr)
EP (1) EP2054692B1 (fr)
CN (1) CN101512281B (fr)
AU (1) AU2007293986B2 (fr)
CA (1) CA2661096A1 (fr)
DE (1) DE102006041742A1 (fr)
WO (1) WO2008028844A1 (fr)

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EP2418023A1 (fr) 2010-08-13 2012-02-15 Siemens Aktiengesellschaft Procédé pour terminer un nettoyage chimique d'une centrale thermique
DE102010051275A1 (de) 2010-11-12 2012-05-16 Heyo Mennenga Reinigungsvorrichtung für Rührwerksreaktoren
CN103389006A (zh) * 2013-06-21 2013-11-13 安徽华速机器人科技有限公司 一种凝汽器在线清洗机器人干式增压盘管系统
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CN111220001A (zh) * 2020-01-13 2020-06-02 国家能源集团煤焦化有限责任公司 冷却器和煤焦化系统
US11924994B2 (en) * 2021-07-16 2024-03-05 Dell Products L.P. Managing a heatsink of an information handling system

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Publication number Publication date
CN101512281A (zh) 2009-08-19
EP2054692A1 (fr) 2009-05-06
CA2661096A1 (fr) 2008-03-13
WO2008028844A1 (fr) 2008-03-13
AU2007293986A1 (en) 2008-03-13
DE102006041742A1 (de) 2008-03-06
US20090217888A1 (en) 2009-09-03
CN101512281B (zh) 2012-01-11
AU2007293986B2 (en) 2011-06-16

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