EP2383534A1 - Method of and device for cleaning heat exchangers, recovery boilers and combustion chambers - Google Patents

Method of and device for cleaning heat exchangers, recovery boilers and combustion chambers Download PDF

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Publication number
EP2383534A1
EP2383534A1 EP11173818A EP11173818A EP2383534A1 EP 2383534 A1 EP2383534 A1 EP 2383534A1 EP 11173818 A EP11173818 A EP 11173818A EP 11173818 A EP11173818 A EP 11173818A EP 2383534 A1 EP2383534 A1 EP 2383534A1
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EP
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Prior art keywords
tube
lines
cleaned
cooling medium
explosive
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EP11173818A
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German (de)
French (fr)
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EP2383534B1 (en
Inventor
Frans Steur
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Conservator Tyche Beheer BV
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Online Cleaning BV
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Application filed by Online Cleaning BV filed Critical Online Cleaning BV
Priority to PL11173818T priority Critical patent/PL2383534T3/en
Priority to EP13187411.7A priority patent/EP2682706A1/en
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    • 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
    • F28G7/00—Cleaning by vibration or pressure waves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0007—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by explosions
    • 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
    • F28G7/00—Cleaning by vibration or pressure waves
    • F28G7/005—Cleaning by vibration or pressure waves by explosions or detonations; by pressure waves generated by combustion processes

Definitions

  • Explosion cleaners are carried out.
  • a textile bag is outside the space to be cleaned filled with a gas mixture and introduced into the room to be cleaned, and there brought to the explosion.
  • the entire explosive effect from the textile bag which can be ideally assumed as a ball emanates.
  • the problem here is that, although contaminants that are applied to the outside of the pipes or room interior walls and that can be achieved directly from the blasting effect, may possibly be eliminated.
  • the lines that receive the medium to be heated are often very close to each other, the blasting action can only remove a small portion of the contaminants, but often impurities that are behind the tubes between the tubes or from the blast.
  • a spherical detonation is not carried out within the combustion chamber, but a linear detonation, i. H. So a blast, in which the explosive effect is distributed over a large length.
  • a pipe, z. As a tube made of cardboard and / or copper, filled with a gas mixture and / or inside with a detonating cord, so that the desired explosive effect can be achieved by the blasting. Due to the explosion according to the invention, a shock wave is generated, which breaks off when it hits dirt to be cleaned off.
  • EP 1 226 881 discloses a method for cleaning surfaces, for example, pipes and pipe walls of steam generators or heat exchangers in process engineering, metalworking and the like thermal treatment and recovery of waste.
  • an explosive acetylene and oxygen-containing gas mixture is used.
  • the acetylene and oxygen-containing gas mixture is placed in a closed container and ignited.
  • the device has a steel tube in which a polyethylene gas bubble is arranged, which is slipped over an igniter and Gasein sleepllINA and sealed gas-tight.
  • EP 1 067 349 A2 discloses an apparatus and method for purifying slag in heat units.
  • the device proposed therein comprises an explosive device which is arranged at one end of a stem, wherein the stem serves to bring the explosive charge in the vicinity of a surface to be cleaned. To avoid premature ignition of the explosive charge in the unit, the device is equipped with a cooling device.
  • EP 0 109 351 A1 discloses a burnout element for chimney stacks, chimneys and the like having an elongate sleeve on which is applied a multi-layered roll of flammable fabric having a coating of a waxy material on each coil layer.
  • US 2,839,435 discloses a method for removing deposits in a reactor chamber by explosive means. For this purpose, several holes are drilled in the deposits, are used in the explosive charges, which are connected with fuses and connected by means of a detonation device, which is located outside the reactor chamber.
  • EP 1 275 925 A1 discloses a method and apparatus for the removal of slag by blasting, wherein a blasting means at the front end of a long lance in the immediate vicinity of the destroying Material is led.
  • a coolant is introduced into the cooling head designed as a double tube with cooling head and supply head via the lance in the supply head, so that it flows past the explosives containing explosives container.
  • WO 98/16329 discloses a cleaning, inspection and repair system for a steam generator of a nuclear power plant.
  • the system uses water jets for cleaning.
  • the system has an extendable telescopic arm or flexible arm with multiple cleaning nozzles attached.
  • the tube can be made arbitrarily long depending on the application and, as seen in the example shown, the tube has a relatively small diameter of for example 3 cm to 15 cm, so that it can also be introduced into the lanes of the heat exchanger lines within the combustion chamber ,
  • the parts such as filling head extinguishing spark plug, threaded rod, shutter etc. can be reused.
  • FIG. 3 shows an alternative embodiment. It can be seen that in the combustion chamber, a first tube is inserted, which is connected via a joint with a second tube. Through the joint, the respective angle of the second tube (detonator) can be set as desired.
  • FIG. 4 shows in the example a view for an exemplary embodiment of the invention.
  • a first tube 1 is connected to a second tube 2 via a hinge.
  • an igniter is arranged, which is connected to a detonating cord.
  • a detonating cord (and possibly an explosive gas mixture) trained and the detonating cord is connected to the detonator.
  • the first tube as well as the second tube is flowed through by a cooling medium, in the example shown, an air / water mixture.
  • the igniter is connected via a firing line to the trigger of the ignition mechanism outside the tube.
  • the cooling medium flows into the first tube and over the joint also into the second tube, so that the detonator and the detonating cord are sufficiently cooled, so that an unforeseen explosion is not triggered prematurely.
  • the outer tube 2, z. B. if this is made of cardboard, glass, metal, copper or plastic, splintered (destroyed) (as in a hand grenade) and the individual particles blown off encounter the contamination of the pipes to be cleaned within the combustion chamber. The impurities are removed here.
  • the cooling amount can be adjusted so that an unforeseen detonation is not prematurely caused.
  • the blasting pipes are dimensioned so that they also fit between the lines to be cleaned within the combustion chamber and thus contaminants can be removed from the lines, which are seen from the combustion chamber between the lines or behind them ,

Abstract

The method involves releasing or separating the impurities by a linear blasting between the lines to be cleaned. A pipe is provided with an explosive device in the inner side. A cooling medium is flowed throughable by the pipe, between which lines to be cleaned are inserted. The pipe is destroyed during the blasting. An independent claim is also included for a device for cleaning the impurities in heat exchangers, waste heat boilers or combustion chambers.

Description

Es ist allgemein bekannt, dass Wärmetauscher, Abhitzekessel oder Brennkammern, also Räume, in denen eine Verbrennung stattfindet und die mit entsprechenden Leitungen versehen sind, durch die ein zu erwärmendes Medium strömt, in gewissen Zeitabständen gereinigt werden müssen. Der Grund für diese Reinigung besteht darin, dass die Leitungen, die von dem zu erwärmenden Medium durchströmt werden, an ihrer Aussenseite durch den Brennvorgang innerhalb des Brennraumes versotten bzw. von einer Schicht von Brennrückständen bedeckt sind, die den Wärmeübergang erschweren bzw. verhindern, was letztlich den Wirkungsgrad der Anlage vermindert.It is generally known that heat exchangers, waste heat boilers or combustion chambers, ie spaces in which combustion takes place and which are provided with corresponding lines through which a medium to be heated flows, have to be cleaned at certain intervals. The reason for this cleaning is that the lines through which the medium to be heated flows, are sputtered on the outside by the firing process within the combustion chamber or are covered by a layer of firing residues, which hinder or prevent heat transfer ultimately reduces the efficiency of the system.

Es ist bereits auch bekannt, dass zur Reinigung solcher Räume und Leitungen sog.
Explosionsreinigungen durchgeführt werden. Hierzu wird beispielsweise ein Textilsack ausserhalb des zu reinigenden Raums mit einem Gasgemisch gefüllt und in den Raum, der gereinigt werden soll, eingebracht und dort zur Explosion gebracht. Bei einem solchen Verfahren entsteht eine kugelförmige Abreinigung, da die gesamte Sprengwirkung vom Textilsack, der idealerweise als Kugel angenommen werden kann, ausgeht. Das Problem hierbei ist, dass zwar Verschmutzungen, die aussenseitig auf den Leitungen bzw. Rauminnenwänden aufgebracht sind und die direkt von der Sprengwirkung erreicht werden können, möglicherweise beseitigt werden können. Da jedoch die Leitungen, die das zu erwärmende Medium aufnehmen, oftmals sehr eng zueinander liegen, kann die Sprengwirkung nur einen kleinen Teil der Verunreinigungen ablösen, häufig jedoch nicht Verunreinigungen, die zwischen den Rohren oder von der Sprengung aus gesehen hinter den Rohren liegen.It is already known that so-called for cleaning such spaces and lines.
Explosion cleaners are carried out. For this purpose, for example, a textile bag is outside the space to be cleaned filled with a gas mixture and introduced into the room to be cleaned, and there brought to the explosion. In such a process results in a spherical cleaning, since the entire explosive effect from the textile bag, which can be ideally assumed as a ball emanates. The problem here is that, although contaminants that are applied to the outside of the pipes or room interior walls and that can be achieved directly from the blasting effect, may possibly be eliminated. However, since the lines that receive the medium to be heated are often very close to each other, the blasting action can only remove a small portion of the contaminants, but often impurities that are behind the tubes between the tubes or from the blast.

Hier setzt die Erfindung an, die sich die Aufgabe gestellt hat, die bisherigen Nachteile zu vermeiden und darüber hinaus auch eine Reinigung zu erlauben, wenn die Temperatur innerhalb des zu reinigenden Raumes noch nicht auf Raumtemperatur oder eine Temperatur unterhalb 100 °C abgesunken ist.This is where the invention, which has set itself the task of avoiding the previous disadvantages and also to allow a cleaning when the temperature within the room to be cleaned has not yet dropped to room temperature or a temperature below 100 ° C.

Die Aufgabe wird durch ein Verfahren mit den Merkmalen nach Anspruch 1 und eine Vorrichtung mit den Merkmalen nach Anspruch 4 gelöst. Vorteilhafte Weiterbildungen sind in den Unteransprüchen beschrieben.The object is achieved by a method having the features of claim 1 and a device having the features of claim 4. Advantageous developments are described in the subclaims.

Gemäss der Erfindung wird nicht eine kugelförmige Sprengung innerhalb des Brennraums durchgeführt, sondern eine lineare Sprengung, d. h. also eine Sprengung, bei welcher die Sprengwirkung auf eine grosse Länge verteilt ist. Hierzu wird ein Rohr, z. B. ein Rohr aus Pappe und/oder Kupfer, mit einem Gasgemisch gefüllt und/oder innenseitig mit einer Sprengschnur versehen, so dass durch die Sprengung die gewünschte Sprengwirkung erzielt werden kann. Durch die Explosion gemäss der Erfindung wird eine Schockwelle erzeugt, die bei Auftreffen auf abzureinigende Verschmutzungen diese absprengt. Durch den geringen Rohrdurchmesser ist auch eine Reinigung zwischen den verunreinigten Leitungen bzw. Leitungsbündeln möglich und wenn das Sprengrohr von einem Kühlmedium durchströmt wird, kann auch die Reinigung während des Betriebs oder nach einer kurzfristigen Abschaltung des Betriebs erfolgen, wenn die Temperatur innerhalb des Brennraums (des Wärmetauschers) noch nicht sehr weit abgesunken ist. Dies erlaubt es, dass für die Reinigung selbst keine relevanten Ausfallzeiten, wie sie bislang von bis zu mehreren Tagen üblich sind, verursacht werden.According to the invention, a spherical detonation is not carried out within the combustion chamber, but a linear detonation, i. H. So a blast, in which the explosive effect is distributed over a large length. For this purpose, a pipe, z. As a tube made of cardboard and / or copper, filled with a gas mixture and / or inside with a detonating cord, so that the desired explosive effect can be achieved by the blasting. Due to the explosion according to the invention, a shock wave is generated, which breaks off when it hits dirt to be cleaned off. Due to the small pipe diameter, a cleaning between the contaminated lines or trunk groups is possible and when the blast is traversed by a cooling medium, the cleaning during operation or after a short-term shutdown of the operation can take place when the temperature within the combustion chamber (the Heat exchanger) has not fallen very far. This makes it possible for the cleaning itself no relevant downtime, as they are customary for up to several days, caused.

EP 1 226 881 offenbart ein Verfahren zur Reinigung von Oberflächen, zum Beispiel von Rohren und Rohrwänden von Dampferzeugern oder Wärmetauschern in der Verfahrenstechnik, der Metallverarbeitung sowie bei der thermischen Behandlung und Verwertung von Abfällen. Bei dem dort beschriebenen Verfahren wird ein explosionsfähiges Acetylen und Sauerstoff enthaltendes Gasgemisch verwendet. Das Acetylen und Sauerstoff enthaltende Gasgemisch wird in einem geschlossenen Behälter vorgelegt und gezündet. Die Vorrichtung weist ein Stahlrohr auf, in dem eine Polyethylen-Gasblase angeordnet ist, die über eine Zündvorrichtung und Gaseinfülleinrichtung gestülpt ist und gasdicht verschlossen ist. EP 1 226 881 discloses a method for cleaning surfaces, for example, pipes and pipe walls of steam generators or heat exchangers in process engineering, metalworking and the like thermal treatment and recovery of waste. In the process described therein, an explosive acetylene and oxygen-containing gas mixture is used. The acetylene and oxygen-containing gas mixture is placed in a closed container and ignited. The device has a steel tube in which a polyethylene gas bubble is arranged, which is slipped over an igniter and Gaseinfülleinrichtung and sealed gas-tight.

EP 1 067 349 A2 offenbart eine Vorrichtung und ein Verfahren zum Abreinigen von Schlacke in Wärmeaggregaten. Die dort vorgeschlagene Vorrichtung weist einen Sprengkörper auf, der an einem Ende eines Stiels angeordnet ist, wobei der Stiel dazu dient, die explosive Ladung in die Nähe einer zu reinigenden Oberfläche zu bringen. Um eine vorzeitige Zündung der explosiven Ladung im Aggregat zu vermeiden, ist die Vorrichtung mit einer Kühlvorrichtung ausgestattet. EP 1 067 349 A2 discloses an apparatus and method for purifying slag in heat units. The device proposed therein comprises an explosive device which is arranged at one end of a stem, wherein the stem serves to bring the explosive charge in the vicinity of a surface to be cleaned. To avoid premature ignition of the explosive charge in the unit, the device is equipped with a cooling device.

EP 0 109 351 A1 offenbart ein Ausbrennelement für Schornsteige, Kamine und dergleichen, das eine längliche Hülse aufweist, auf die ein mehrschichtiger Wickel aus einem brennbaren Gewebe aufgebracht ist, der auf jeder Wickelschicht eine Beschichtung aus einem wachsartigen Material besitzt. EP 0 109 351 A1 discloses a burnout element for chimney stacks, chimneys and the like having an elongate sleeve on which is applied a multi-layered roll of flammable fabric having a coating of a waxy material on each coil layer.

US 2,839,435 offenbart ein Verfahren zum Entfernen von Ablagerungen in einer Reaktorkammer durch explosive Mittel. Dazu werden mehrere Löcher in die Ablagerungen gebohrt, in die explosive Ladungen eingesetzt werden, die mit Zündschnüren verbunden sind und mittels einer Detonationsvorrichtung, die außerhalb der Reaktorkammer angeordnet ist, verbunden sind. US 2,839,435 discloses a method for removing deposits in a reactor chamber by explosive means. For this purpose, several holes are drilled in the deposits, are used in the explosive charges, which are connected with fuses and connected by means of a detonation device, which is located outside the reactor chamber.

EP 1 275 925 A1 offenbart ein Verfahren und eine Vorrichtung zur Entfernung von Schlackenansätzen durch Sprengung, wobei ein Sprengmittel am vorderen Ende einer langen Lanze bis in unmittelbarer Nähe des zu zerstörenden Materials geführt wird. Um eine Selbstentzündung des Sprengmittels durch die vorhandene Flamm- bzw. Strahlungshitze zu vermeiden, wird ein Kühlmittel in den als Doppelrohr mit Kühlkopf und Versorgungskopf ausgebildeten Kühlbehälter über die Lanze in den Versorgungskopf eingeführt, so dass es an dem das Sprengmittel enthaltenden Sprengmittelbehälter vorbeiströmt. EP 1 275 925 A1 discloses a method and apparatus for the removal of slag by blasting, wherein a blasting means at the front end of a long lance in the immediate vicinity of the destroying Material is led. In order to avoid spontaneous combustion of the explosive by the existing flame or radiant heat, a coolant is introduced into the cooling head designed as a double tube with cooling head and supply head via the lance in the supply head, so that it flows past the explosives containing explosives container.

WO 98/16329 offenbart ein Reinigungs-, Inspektions- und Reparatursystem für einen Dampfgenerator einer Kernkraftanlage. Das System verwendet zum Reinigen Wasserstrahlen. Das System weist einen ausfahrbaren Teleskoparm oder flexiblen Arm auf, an dem mehrere Reinigungsdüsen angebracht sind. WO 98/16329 discloses a cleaning, inspection and repair system for a steam generator of a nuclear power plant. The system uses water jets for cleaning. The system has an extendable telescopic arm or flexible arm with multiple cleaning nozzles attached.

Das DE-Fachbuch " Wärmeübertrager-Reinigungssysteme", Herausgeber Prof. H. Müller-Steinhagen, Publico Publications, 2001, Seite 382 , offenbart einen Wasserlanzenbläser, der durch einen gebündelten Wasserstrahl eine Feuerraumwand abreinigen kann. Der Wasserlanzenbläser weist ein Rohrdrehgelenk auf.The DE-Fachbuch " Heat Exchanger Cleaning Systems ", published by Prof. H. Müller-Steinhagen, Publico Publications, 2001, page 382 discloses a water lance blower that can clean a firebox wall by a collimated jet of water. The water lance blower has a swivel joint.

Das DE-Fachbuch " Handbuch der Sprengtechnik", VEB Deutscher Verlag für Grundstoffindustrie, Leipzig, 1. Auflage, 1995, Seiten 344 bis 351 und Seite 31 , befasst sich mit Warmsprengungen in der Industrie, wobei unter Warmsprengungen Sprengungen zu verstehen sind, bei denen die Temperatur der zu sprengenden Medien 70°C übersteigt. Dieses Dokument befasst sich insbesondere mit der Kühlung der für die Reinigung verwendeten Sprengladungen bei Warmsprengungen.The DE-Fachbuch " Handbook of Blasting Technology ", VEB German publishing house for basic industry, Leipzig, 1. edition, 1995, pages 344 to 351 and page 31 , is concerned with hot blasting in industry, where hot blasting is blasting in which the temperature of the media to be blasted exceeds 70 ° C. This document deals in particular with the cooling of the explosive charges used for cleaning during hot blasting.

Die Erfindung ist nachfolgend anhand von Beispielen erläutert:

  • Figur 1 zeigt ein Rohr 1, vorzugsweise Papprohr, welches eine Zündkerze (Zünder) 2 aufnimmt. Das Rohr ist einerseits mit einem Verschluss versehen und auf der anderen Seite ist ein Gaseinfüllstutzen ausgebildet.
  • Figur 2 zeigt die gesamte Vorrichtung in zusammengesetzten Zustand.
The invention is explained below by way of examples:
  • FIG. 1 shows a tube 1, preferably paperboard, which receives a spark plug (igniter) 2. The tube is on the one hand provided with a closure and on the other side a gas filler neck is formed.
  • FIG. 2 shows the entire device in assembled condition.

Das Rohr kann je nach Einsatz beliebig lang gemacht werden und, wie im dargestellten Beispiel zu sehen, weist das Rohr einen relativ kleinen Durchmesser von beispielsweise 3 cm bis 15 cm auf, so dass es auch in die Gassen der Wärmetauscherleitungen innerhalb der Brennkammer eingebracht werden kann.The tube can be made arbitrarily long depending on the application and, as seen in the example shown, the tube has a relatively small diameter of for example 3 cm to 15 cm, so that it can also be introduced into the lanes of the heat exchanger lines within the combustion chamber ,

Nach Auslösung der Sprengung, durch die das gesamte (Papp)rohr zerlegt wird, können die Teile wie Füllkopf-Löschzündkerze, Gewindestange, Verschluss usw. wieder weiter verwendet werden.After the detonation, which disassembles the entire (cardboard) pipe, the parts such as filling head extinguishing spark plug, threaded rod, shutter etc. can be reused.

Figur 3 zeigt eine alternative Ausführungsform. Hierbei ist zu sehen, dass in den Brennraum ein erstes Rohr eingelassen wird, welches über ein Gelenk mit einem zweiten Rohr verbunden ist. Durch das Gelenk kann der jeweilige Winkel des zweiten Rohres (Sprengrohr) so eingestellt werden, wie dies gerade gewünscht ist. FIG. 3 shows an alternative embodiment. It can be seen that in the combustion chamber, a first tube is inserted, which is connected via a joint with a second tube. Through the joint, the respective angle of the second tube (detonator) can be set as desired.

Figur 4 zeigt im Beispiel eine Ansicht für eine beispielhafte Ausbildung der Erfindung. Hierbei ist ein erstes Rohr 1 mit einem zweiten Rohr 2 über ein Gelenk verbunden. Innerhalb des zweiten Rohres ist ein Zünder angeordnet, welcher mit einer Sprengschnur verbunden ist. FIG. 4 shows in the example a view for an exemplary embodiment of the invention. Here, a first tube 1 is connected to a second tube 2 via a hinge. Within the second tube, an igniter is arranged, which is connected to a detonating cord.

Wird nunmehr zwischen die beschriebene Anordnung ein Brennraum eingebracht, und zwar dort zwischen Rohrbündel (-leitungen) 8 und 9, so kann mittels der Auslösung der Sprengung, also mittels der Explosion die Reinigung der Rohre vorgenommen werden, und damit die Sprengung nicht zu einem unerwünschten Zeitpunkt erfolgt, wird das Rohrinnere mittels zugeführten Wassers (bzw. zugeführter Luft), welches über das erste Rohr 1 einströmt entsprechend gekühlt, so dass eine unerwünschte Auslösung der Explosion sicher verhindert werden kann.Now, if a combustion chamber is introduced between the described arrangement, namely between tube bundle (lines) 8 and 9, so by means of the triggering of the blast, ie by means of the explosion, the cleaning of the tubes are made, and thus the blasting is not an undesirable Timing takes place, the pipe interior is cooled by means of supplied water (or supplied air), which flows in via the first pipe 1, so that an undesirable triggering of the explosion can be reliably prevented.

Innerhalb des zweiten Rohres 2 ist eine Sprengschnur (und ggf. ein explosives Gasgemisch) ausgebildet und die Sprengschnur ist mit dem Zünder verbunden. Wie in der Figur 4 weiter dargestellt, wird das erste Rohr wie auch das zweite Rohr von einem Kühlmedium durchströmt, im dargestellten Beispiel ein Luft/Wassergemisch. Der Zünder ist über eine Zündleitung mit dem Auslöser des Zündmechanismus ausserhalb des Rohrs verbunden. Das Kühlmedium strömt in das erste Rohr und über das Gelenk auch in das zweite Rohr, so dass der Zünder und die Sprengschnur ausreichend gekühlt werden, damit nicht eine unvorhergesehene Explosion vorzeitig ausgelöst wird.Within the second tube 2 is a detonating cord (and possibly an explosive gas mixture) trained and the detonating cord is connected to the detonator. Like in the FIG. 4 further illustrated, the first tube as well as the second tube is flowed through by a cooling medium, in the example shown, an air / water mixture. The igniter is connected via a firing line to the trigger of the ignition mechanism outside the tube. The cooling medium flows into the first tube and over the joint also into the second tube, so that the detonator and the detonating cord are sufficiently cooled, so that an unforeseen explosion is not triggered prematurely.

Wird die Sprengung ausgelöst, so wird das äussere Rohr 2, z. B. wenn dieses aus Pappe, Glas, Metall, Kupfer oder Kunststoff gefertigt ist, zersplittert (zerstört) (wie bei einer Handgranate) und die einzelnen abgesprengten Partikel treffen auf die Verunreinigung an den zu reinigenden Rohren innerhalb der Brennkammer. Die Verunreinigungen werden hierbei abgelöst.If the blast is triggered, the outer tube 2, z. B. if this is made of cardboard, glass, metal, copper or plastic, splintered (destroyed) (as in a hand grenade) and the individual particles blown off encounter the contamination of the pipes to be cleaned within the combustion chamber. The impurities are removed here.

Ist der Zünder mit einem Temperatursensor versehen, so kann die Kühlmenge so eingestellt werden, dass eine unvorhergesehene Sprengung nicht vorzeitig verursacht wird.If the igniter is equipped with a temperature sensor, the cooling amount can be adjusted so that an unforeseen detonation is not prematurely caused.

Wie in den dargestellten Beispielen auch zu sehen, sind die Sprengrohre so bemessen, dass sie auch zwischen die zu reinigenden Leitungen innerhalb des Brennraumes passen und somit auch Verunreinigungen von den Leitungen abgelöst werden können, die vom Brennraum aus gesehen zwischen den Leitungen oder hinter diesen liegen.As can also be seen in the illustrated examples, the blasting pipes are dimensioned so that they also fit between the lines to be cleaned within the combustion chamber and thus contaminants can be removed from the lines, which are seen from the combustion chamber between the lines or behind them ,

Claims (10)

Verfahren zur Reinigung von Verschmutzungen in Wärmetauschern, Abhitzekesseln oder Brennkammern, dadurch gekennzeichnet, dass die Verschmutzungen durch eine lineare Sprengung zwischen den zu reinigenden Leitungen gelockert und/oder abgelöst werden.A method for cleaning contaminants in heat exchangers, waste heat boilers or combustion chambers, characterized in that the contaminants are loosened and / or replaced by a linear detonation between the lines to be cleaned. Verfahren nach Anspruch 1, wobei ein Rohr innenseitig mit einem Sprengkörper versehen, von einem Kühlmedium durchströmt, zwischen die zu reinigenden Leitungen eingebracht, die Sprengung ausgelöst wird, und das Rohr bei der Sprengung zerstört wird.The method of claim 1, wherein a tube inside provided with an explosive device, flows through a cooling medium, introduced between the lines to be cleaned, the blast is triggered, and the tube is destroyed in the blasting. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Sprengung während des Betriebs des zu reinigenden Aggregats oder nach Abstellung des zu reinigenden Aggregats durchgeführt wird, wenn die Temperatur im Innenraum des Aggregats noch über 300 °C, bevorzugt über 700 °C beträgt.A method according to claim 1 or 2, characterized in that the blasting during operation of the unit to be cleaned or after shutdown of the unit to be cleaned is carried out when the temperature in the interior of the unit is still above 300 ° C, preferably above 700 ° C. Vorrichtung zum Reinigen von Verschmutzungen in Wärmetauschern, Abhitzekesseln oder Brennkammern, dadurch gekennzeichnet, dass die Vorrichtung ein Rohr umfasst, welches über eine grosse Länge bei gleichzeitig relativ geringem Durchmesser verfügt, so dass sie auch zwischen die zu reinigenden Leitungen passt und somit auch Verunreinigungen von den Leitungen abgelöst werden können, die zwischen den Leitungen liegen, wobei innerhalb des Rohrs ein entzündbares Gasgemisch und/oder ein Sprengkörper ausgebildet ist und das Rohr nach der Sprengung zerstört ist, und dass innerhalb des Rohrs ein Kanal ausgebildet ist, welcher den Sprengkörper umfasst und von einem Kühlmedium durchströmt werden kann.Device for cleaning contaminants in heat exchangers, waste heat boilers or combustion chambers, characterized in that the device comprises a tube which has a large length at the same time relatively small diameter, so that it also fits between the lines to be cleaned and thus also contaminants from the Lines can be detached, which lie between the lines, wherein within the tube a flammable gas mixture and / or an explosive body is formed and the tube is destroyed after demolition, and that within the tube, a channel is formed, which comprises the explosive body and of a cooling medium can be flowed through. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass das Rohr aus einem ersten Rohr und einem daran angelenkten zweiten Rohr besteht, wobei innerhalb des zweiten Rohres ein Zünder ausgebildet ist, welcher die Sprengung bei Auslösung initiiert, und das zweite Rohr so ausgerichtet ist, dass die grösste Sprengwirkung erzielt wird, und der Zünder über eine Zündleitung mit einem Zündauslösermechanismus verbunden ist.Apparatus according to claim 4, characterized in that the tube consists of a first tube and a second tube hinged thereto, wherein within the second tube, an igniter is formed, which initiates the blast on deployment, and the second tube is oriented to achieve the greatest blast, and the ignitor is connected to a detonator mechanism via a firing lead. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass innerhalb des Rohrs ein Kanal ausgebildet ist, welcher die Sprengschnur und/oder das Explosionsgas umfasst und ein Kühlmedium aufnimmt.Device according to one of the preceding claims, characterized in that within the tube, a channel is formed, which comprises the detonating cord and / or the explosion gas and receives a cooling medium. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass das Kühlmedium ein Luft/Wassergemisch ist.Apparatus according to claim 6, characterized in that the cooling medium is an air / water mixture. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass am Zünder ein Temperatursensor ausgebildet ist und abhängig von der am Zünder gemessenen Temperatur die Menge des Kühlmediums durch automatisierte Steuerung so eingestellt wird, dass eine unvorhergesehene Sprengung nicht erfolgt.Device according to one of the preceding claims, characterized in that at the igniter, a temperature sensor is formed and depending on the temperature measured at the igniter, the amount of the cooling medium is adjusted by automated control so that an unforeseen detonation does not occur. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mehrere Rohre zu einem Rohrbündel zusammengefasst sind.Device according to one of the preceding claims, characterized in that a plurality of tubes are combined to form a tube bundle. Verfahren bzw. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei der Sprengkörper eine Sprengschnur ist.A method or apparatus according to any one of the preceding claims, wherein the explosive device is a detonating cord.
EP11173818.3A 2003-12-19 2004-12-20 Method of and device for cleaning heat exchangers, recovery boilers and combustion chambers Active EP2383534B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL11173818T PL2383534T3 (en) 2003-12-19 2004-12-20 Method of and device for cleaning heat exchangers, recovery boilers and combustion chambers
EP13187411.7A EP2682706A1 (en) 2003-12-19 2004-12-20 Method and device for cleaning dirt in heat exchangers, waste heat boilers and combustion chambers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10360705A DE10360705A1 (en) 2003-12-19 2003-12-19 Method and device for cleaning contaminants in heat exchangers, waste heat boilers and combustion chambers
EP04030137A EP1544567B1 (en) 2003-12-19 2004-12-20 Device for cleaning heat exchangers, recovery boilers and combustion chambers

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EP04030137.6 Division 2004-12-20
EP04030137A Division EP1544567B1 (en) 2003-12-19 2004-12-20 Device for cleaning heat exchangers, recovery boilers and combustion chambers

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EP13187411.7A Division-Into EP2682706A1 (en) 2003-12-19 2004-12-20 Method and device for cleaning dirt in heat exchangers, waste heat boilers and combustion chambers

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EP2383534A1 true EP2383534A1 (en) 2011-11-02
EP2383534B1 EP2383534B1 (en) 2014-02-19

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EP13187411.7A Withdrawn EP2682706A1 (en) 2003-12-19 2004-12-20 Method and device for cleaning dirt in heat exchangers, waste heat boilers and combustion chambers
EP11173818.3A Active EP2383534B1 (en) 2003-12-19 2004-12-20 Method of and device for cleaning heat exchangers, recovery boilers and combustion chambers

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EP13187411.7A Withdrawn EP2682706A1 (en) 2003-12-19 2004-12-20 Method and device for cleaning dirt in heat exchangers, waste heat boilers and combustion chambers

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EP (3) EP1544567B1 (en)
AT (1) ATE525623T1 (en)
DE (2) DE20321732U1 (en)
DK (2) DK2383534T3 (en)
ES (1) ES2373655T3 (en)
PL (2) PL1544567T3 (en)

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EP3885686A1 (en) 2020-03-26 2021-09-29 Conservator Tyche Beheer B.V. Method of and charge for cleaning incinerator heat exchangers
EP4160134A1 (en) 2021-09-30 2023-04-05 Conservator Tyche Beheer B.V. Device for and method of cleaning the internals of installations

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EP2548662A1 (en) 2011-07-22 2013-01-23 Online Cleaning B.V. Device for and method of cleaning installations online
DE102013210251A1 (en) 2013-06-03 2014-12-04 Martijn Steur Apparatus for pulsed ejection of a liquid and / or powdery medium
DE202016008806U1 (en) 2015-12-30 2019-10-31 Conservator Tyche Beheer B.V. Cooled cleaning device
DE102016202422A1 (en) 2016-02-17 2017-08-17 Berthold Steinberg Coolable camera device
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EP3885686A1 (en) 2020-03-26 2021-09-29 Conservator Tyche Beheer B.V. Method of and charge for cleaning incinerator heat exchangers
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Also Published As

Publication number Publication date
DE10360705A1 (en) 2005-07-14
EP2383534B1 (en) 2014-02-19
PL2383534T3 (en) 2014-07-31
DK1544567T3 (en) 2012-01-16
ES2373655T3 (en) 2012-02-07
DE20321732U1 (en) 2009-05-28
PL1544567T3 (en) 2012-02-29
EP2682706A1 (en) 2014-01-08
EP1544567A2 (en) 2005-06-22
DK2383534T3 (en) 2014-05-19
EP1544567B1 (en) 2011-09-21
EP1544567A3 (en) 2008-10-22
ATE525623T1 (en) 2011-10-15

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