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EP2051033A1 - Regenerative heat exchanger - Google Patents

Regenerative heat exchanger Download PDF

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Publication number
EP2051033A1
EP2051033A1 EP07020309A EP07020309A EP2051033A1 EP 2051033 A1 EP2051033 A1 EP 2051033A1 EP 07020309 A EP07020309 A EP 07020309A EP 07020309 A EP07020309 A EP 07020309A EP 2051033 A1 EP2051033 A1 EP 2051033A1
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EP
European Patent Office
Prior art keywords
heat exchanger
regenerative heat
exchanger according
arms
bearings
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
EP07020309A
Other languages
German (de)
French (fr)
Other versions
EP2051033B1 (en
Inventor
Manfred Flender
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.)
Balcke Duerr GmbH
Original Assignee
Balcke Duerr GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DK07020309.6T priority Critical patent/DK2051033T3/en
Application filed by Balcke Duerr GmbH filed Critical Balcke Duerr GmbH
Priority to AT07020309T priority patent/ATE456777T1/en
Priority to PL07020309T priority patent/PL2051033T3/en
Priority to DE502007002762T priority patent/DE502007002762D1/en
Priority to ES07020309T priority patent/ES2340329T3/en
Priority to SI200730218T priority patent/SI2051033T1/en
Priority to PT07020309T priority patent/PT2051033E/en
Priority to EP07020309A priority patent/EP2051033B1/en
Priority to US12/245,561 priority patent/US8360137B2/en
Priority to SA8290647A priority patent/SA08290647B1/en
Priority to RU2008141205/06A priority patent/RU2395037C2/en
Priority to CN2008101705038A priority patent/CN101413770B/en
Publication of EP2051033A1 publication Critical patent/EP2051033A1/en
Priority to HK09109456.9A priority patent/HK1129922B/en
Application granted granted Critical
Publication of EP2051033B1 publication Critical patent/EP2051033B1/en
Priority to CY20101100369T priority patent/CY1112373T1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
    • F28D19/041—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier with axial flow through the intermediate heat-transfer medium
    • 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
    • F28G9/005—Cleaning by flushing or washing, e.g. with chemical solvents of regenerative heat exchanger

Definitions

  • the invention relates to a regenerative heat exchanger for each other in the heat exchange gas flows, the heat exchange via a permanently immersed in all gas streams associated buffer takes place, which is cleaned by a spray nozzle at its free end, pivoting blowing arm, a bearing axis of the Blasarms parallel to Flow direction of the gas streams in the region of the buffer is arranged and penetrates with their imaginary extension of the buffer.
  • the invention is therefore based on the object to ensure reliable removal of impurities from the region of the buffer and thereby to allow the largest possible time interval between successive flushes.
  • This object is achieved in that two mirror images of the buffer memory arranged blowing arms are provided with at least one nozzle for compressed air and pressurized water.
  • the bearings of the blower arms are advantageously arranged encapsulated against the gas flows involved between the outer edge of the disc-shaped intermediate memory and its central axis. It is expediently the distance of the bearing from the outer edge of the buffer significantly smaller than the distance from the central axis and aligned while the bearings of the two blowing arms together.
  • This bearing arrangement leads to short blowing arms and thereby leads even at high pressures of compressed air and pressurized water even with not inconsiderable recoil forces on the nozzles only to well controllable bearing forces.
  • the supply channels for detergent to the nozzles are expediently arranged concentrically to one another and the blowing arms are gradually tapered in the direction of their free end.
  • an axially parallel to the flow direction of the gas flows angled part of the blowing arms used to guide them in two camps.
  • the bearings are advantageously designed as a rolling bearing and the maximum deflections of the blower arms lead their free ends to the outer and the inner edge of the buffer.
  • a frame 1 comprises a buffer store 2, which is mounted rotatably in the frame 1 via a shaft 3.
  • a housing 4 encloses the buffer 2 and is sealed over its entire circumference to the latter by sealing lips 5.
  • the part of the buffer 2 located on the left in the drawing is flowed through from below from below by a hot gas stream 6, so that in each case the portion of the buffer 2 lying in this part is heated up.
  • the buffer 2 is slowly rotated in a manner not shown in the direction of an arrow 7, so that the heated part of the buffer 2 slowly moves in the right in the drawing part of the housing 4.
  • This part of the housing 4 is passed from top to bottom of a cold gas stream 8, to which the buffer 2 emits the heat absorbed from the gas stream 6, so that the now heated gas stream 8, for example, as combustion air, a furnace can be supplied.
  • the cooled section of the buffer 2 continues to travel and again absorbs heat from the gas stream 6 in the left-hand part of the housing 4 and a new cycle of heat exchange begins.
  • the buffer 2 is substantially composed of parallel to the gas streams 6 and 8, not shown in detail, lamellae composed of a good heat-conducting material and sets the gas streams 6 and 8 only a very low resistance. Nevertheless, the buffer 2 is contaminated during operation, so that its heat absorption as well as its ability to give them back, is impaired. This results in the need to periodically clean the buffer 2 during operation.
  • blowing arms 9 are provided which are reciprocable with their free ends between the outer edge 10 and the inner edge 11 of the buffer 2 and herschwenkbar.
  • the blowing arms 9 carry nozzles 12.
  • two nozzle plates 12 are provided at the end of the inlet side for the gas flow 6 arranged blowing arm 9, each of which a low-pressure nozzle plate and high-pressure nozzle plate.
  • a low-pressure nozzle plate is suitable for steam, compressed air and water.
  • a high pressure nozzle plate is suitable for water.
  • the two mirror-image above and below the buffer 2 arranged Blasarme 9 with their nozzles 12 clean the surface of the buffer 2 forming elements so that their effectiveness is restored without an interruption in operation.
  • the dissolved impurities are taken along after leaving the buffer 2 and are separated if necessary in a downstream filter from the exhaust and eliminated without harm to the environment.
  • pressurized water is used with up to several 100 bar, so that at the nozzle 12 for pressurized water a considerable recoil force occurs.
  • Regenerative heat exchangers 2 of the type according to the invention can be used in virtually all systems from which a heated exhaust gas is released to the environment. Such heat exchangers 2 allow recovery of heat energy and are at the same time useful as starting points for filters. In addition to an economic gain, they thus also protect the environment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Power Steering Mechanism (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Gas Separation By Absorption (AREA)
  • Cleaning In General (AREA)
  • Nozzles (AREA)

Abstract

Regenerativ-Wärmetauscher zur Rückgewinnung von Wärme aus Abgasen haben häufig einen in alle beteiligten Gasströme eintauchenden Zwischenspeicher. Dieser muss von Zeit zu Zeit gereinigt werden. Dazu dient häufig ein über dem Zwischenspeicher hin- und herschwenkbarer Blasarm mit Düsen für Druckwasser und Druckluft auf seinem freien Ende. Erfindungsgemäß bildet der Zwischenspeicher eine Symmetrieachse für zwei sich spiegelbildlich gegenüberliegende Blasarme mit mindestens je einer Düse für Druckluft und für Druckwasser.Regenerative heat exchangers for the recovery of heat from exhaust gases often have an intermediate storage tank immersed in all the gas flows involved. This must be cleaned from time to time. This is often a back over the intermediate memory and herschwenkbarer blowing arm with nozzles for pressurized water and compressed air on its free end. According to the invention, the buffer forms an axis of symmetry for two mirror-inverted opposite blowing arms with at least one nozzle for compressed air and for pressurized water.

Description

Die Erfindung betrifft einen Regenerativ-Wärmetauscher für im Wärmeaustausch miteinander stehende Gasströme, wobei der Wärmeaustausch über einen dauernd in alle beteiligten Gasströme eintauchenden Zwischenspeicher erfolgt, der von einem an seinem freien Ende Spritzdüsen tragenden, schwenkbaren Blasarm reinigbar ist, wobei eine Lagerachse des Blasarms parallel zur Strömungsrichtung der Gasströme im Bereich des Zwischenspeichers angeordnet ist und mit ihrer gedachten Verlängerung den Zwischenspeicher durchdringt.The invention relates to a regenerative heat exchanger for each other in the heat exchange gas flows, the heat exchange via a permanently immersed in all gas streams associated buffer takes place, which is cleaned by a spray nozzle at its free end, pivoting blowing arm, a bearing axis of the Blasarms parallel to Flow direction of the gas streams in the region of the buffer is arranged and penetrates with their imaginary extension of the buffer.

Bei Wärmeprozessen in industriellen Anlagen fallen häufig große Abgasmengen mit erheblichen Wärmeinhalten an, deren Rückgewinnung bei allgemein steigenden Energiekosten wirtschaftliche Vorteile bringt. Dies ist beispielsweise bei der Elektrizitätserzeugung, bei chemischen Prozessen oder auch bei der Nahrungsmittelverarbeitung oft der Fall. Zur Rückgewinnung von Wärme aus Abgas wird dieses dabei beispielsweise im Gegenstrom zu einem Frischluftstrom durch einen Zwischenspeicher geführt, der die Form einer langsam rotierenden Scheibe hat. Dieser Zwischenspeicher nimmt auf einer Seite Wärme aus dem Abgas auf und heizt mit dieser Wärme auf seiner anderen Seite einen kühleren Gasstrom, beispielsweise Verbrennungsluft, auf.In heating processes in industrial plants often fall large amounts of exhaust gas with considerable heat content, their recovery brings economic benefits at generally rising energy costs. This is often the case, for example, in electricity generation, in chemical processes or in food processing. For recovering heat from exhaust gas, this is guided, for example, in countercurrent to a fresh air flow through an intermediate store, which has the form of a slowly rotating disk. This buffer takes on one side of heat from the exhaust gas and heats with this heat on its other side a cooler gas stream, such as combustion air on.

Dabei wird unvermeidbar der Zwischenspeicher verschmutzt, so dass seine Wirksamkeit nachlässt. Demzufolge ist es erforderlich, die Zwischenspeicher von Zeit zu Zeit zu reinigen. Dies geschieht beispielsweise gemäß DE 44 42 055 A1 , Fig. 4, unter Einsatz eines Schwenkarms, der kürzer ist als der Radius des Zwischenspeichers. Der Schwenkarm trägt auf seinem freien Ende auf den Zwischenspeicher gerichtete Düsen. Diese Düsen spritzen in der Strömungsrichtung des Abgases Reinigungsflüssigkeit auf die Heizflächen des Zwischenspeichers, so dass Verunreinigungen gelöst und fortgespült werden.This inevitably contaminates the cache, so that its effectiveness wears off. As a result, it is necessary to clean the latches from time to time. This happens, for example, according to DE 44 42 055 A1 Fig. 4, using a pivot arm, which is shorter than the radius of the buffer. The swivel arm carries on its free end directed to the buffer memory nozzles. These nozzles inject cleaning liquid into the heating surfaces of the buffer in the direction of flow of the exhaust gas, so that contaminants are dissolved and flushed away.

Nachteilig ist hierbei, dass zwar die stromaufgerichtete Speicherseite gereinigt und gespült wird, dass aber die Spülung einseitig erfolgt, so dass sich bereits gelöste Verunreinigungen an anderer Stelle wieder ablagern können. Das kann auch durch einen an anderer Stelle angeordneten zweiten Schwenkarm nicht zuverlässig verhindert werden, weil dieser zweite Schwenkarm infolge der langsamen Rotation des Zwischenspeichers mit erheblicher Zeitverzögerung wirksam wird.The disadvantage here is that while the upstream side of the storage is cleaned and rinsed, but that the flushing is done on one side, so that already dissolved impurities can be deposited elsewhere again. This can not be reliably prevented by a second pivot arm arranged elsewhere because this second pivot arm is effective due to the slow rotation of the buffer with considerable time delay.

Der Erfindung liegt daher die Aufgabe zugrunde eine zuverlässige Entfernung von Verunreinigungen aus dem Bereich des Zwischenspeichers zu gewährleisten und dadurch einen möglichst großen Zeitintervall zwischen aufeinander folgenden Spülungen zu ermöglichen.The invention is therefore based on the object to ensure reliable removal of impurities from the region of the buffer and thereby to allow the largest possible time interval between successive flushes.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass zwei spiegelbildlich zum Zwischenspeicher angeordnete Blasarme mit mindestens je einer Düse für Druckluft und für Druckwasser vorgesehen sind. Dadurch werden auf der stromauf im Gasstrom von dem Zwischenspeicher gelöste Verunreinigungen angetrieben von Spülstrahlen aus stromab vom Zwischenspeicher liegenden Düsen sicher aus dessen Bereich entfernt.This object is achieved in that two mirror images of the buffer memory arranged blowing arms are provided with at least one nozzle for compressed air and pressurized water. As a result, impurities, which are dissolved upstream of the intermediate store in the gas flow, are reliably removed from its area, driven by rinsing jets from nozzles located downstream of the intermediate store.

Zum Schutz gegen Korrosion sind die Lager der Blasarme vorteilhafterweise abgekapselt gegen die beteiligten Gasströme zwischen dem Außenrand des scheibenförmig gestalteten Zwischenspeichers und dessen Mittelachse angeordnet. Dabei ist zweckmäßigerweise der Abstand der Lager vom Außenrand des Zwischenspeichers deutlich kleiner als der Abstand von dessen Mittelachse und fluchten dabei die Lager der beiden Blasarme miteinander. Diese Lageranordnung führt zu kurzen Blasarmen und führt dadurch auch bei hohen Drücken von Druckluft und Druckwasser selbst bei nicht unerheblichen Rückstoßkräften an den Düsen nur zu gut beherrschbaren Lagerkräften.To protect against corrosion, the bearings of the blower arms are advantageously arranged encapsulated against the gas flows involved between the outer edge of the disc-shaped intermediate memory and its central axis. It is expediently the distance of the bearing from the outer edge of the buffer significantly smaller than the distance from the central axis and aligned while the bearings of the two blowing arms together. This bearing arrangement leads to short blowing arms and thereby leads even at high pressures of compressed air and pressurized water even with not inconsiderable recoil forces on the nozzles only to well controllable bearing forces.

Die Zuleitungskanäle für Spülmittel zu den Düsen sind zweckmäßig konzentrisch zueinander angeordnet und die Blasarme sind in Richtung auf ihr freies Ende stufenweise verjüngt.The supply channels for detergent to the nozzles are expediently arranged concentrically to one another and the blowing arms are gradually tapered in the direction of their free end.

Zweckmäßigerweise dient ein achsparallel zur Strömungsrichtung der Gasströme abgewinkelter Teil der Blasarme zu deren Führung in zwei Lagern. Die Lager sind vorteilhafterweise als Wälzlager ausgeführt und die maximalen Auslenkungen der Blasarme führen deren freien Enden bis an den äußeren und den inneren Rand des Zwischenspeichers.Conveniently, an axially parallel to the flow direction of the gas flows angled part of the blowing arms used to guide them in two camps. The bearings are advantageously designed as a rolling bearing and the maximum deflections of the blower arms lead their free ends to the outer and the inner edge of the buffer.

Durch die spiegelbildliche Anordnung von zwei Blasarmen ist einerseits eine gute Reinigung und darüber hinaus ein sicherer Abtransport von gelösten Verunreinigungen gewährleistet und ein großer zeitlicher Abstand zwischen aufeinander folgenden Reinigungsprozessen ermöglicht.Due to the mirror-image arrangement of two blowing arms, on the one hand, good cleaning and, moreover, a safe removal of dissolved impurities is ensured and a large time interval between successive cleaning processes is made possible.

Ein Ausführungsbeispiel eines Regenerativ-Wärmetauschers ist in einer Zeichnung dargestellt. Dabei zeigt:

  • Fig. 1: Einen Schnitt, und
  • Fig. 2: eine Draufsicht ohne die oberen Kanalabschnitte für die Gasströme.
An embodiment of a regenerative heat exchanger is shown in a drawing. Showing:
  • Fig. 1 : A cut, and
  • Fig. 2 FIG. 2 is a plan view without the upper channel sections for the gas streams. FIG.

Ein Rahmen 1 umfasst einen Zwischenspeicher 2, der über eine Welle 3 drehbar im Rahmen 1 gelagert ist. Ein Gehäuse 4 umhüllt den Zwischenspeicher 2 und ist auf seinem gesamten Umfang diesem gegenüber durch Dichtlippen 5 abgedichtet. Der in der Zeichnung links liegende Teil des Zwischenspeichers 2 wird von unten nach oben von einem heißen Gasstrom 6 durchströmt, so dass jeweils der in diesem Teil liegende Abschnitt des Zwischenspeichers 2 aufgeheizt wird.A frame 1 comprises a buffer store 2, which is mounted rotatably in the frame 1 via a shaft 3. A housing 4 encloses the buffer 2 and is sealed over its entire circumference to the latter by sealing lips 5. The part of the buffer 2 located on the left in the drawing is flowed through from below from below by a hot gas stream 6, so that in each case the portion of the buffer 2 lying in this part is heated up.

Der Zwischenspeicher 2 wird auf nicht näher dargestellte Art und Weise langsam in Richtung eines Pfeiles 7 gedreht, so dass der aufgeheizte Teil des Zwischenspeichers 2 langsam in den in der Zeichnung rechts liegenden Teil des Gehäuses 4 wandert. Dieser Teil des Gehäuses 4 wird von oben nach unten von einem kalten Gasstrom 8 passiert, an den der Zwischenspeicher 2 die aus dem Gasstrom 6 aufgenommene Wärme abgibt, so dass der nunmehr aufgeheizte Gasstrom 8, beispielsweise als Verbrennungsluft, einer Feuerung zugeführt werden kann. Der abgekühlte Abschnitt des Zwischenspeichers 2 wandert weiter und nimmt im links liegenden Teil des Gehäuses 4 erneut Wärme aus dem Gasstrom 6 auf und ein neuer Zyklus des Wärmeaustauschs beginnt.The buffer 2 is slowly rotated in a manner not shown in the direction of an arrow 7, so that the heated part of the buffer 2 slowly moves in the right in the drawing part of the housing 4. This part of the housing 4 is passed from top to bottom of a cold gas stream 8, to which the buffer 2 emits the heat absorbed from the gas stream 6, so that the now heated gas stream 8, for example, as combustion air, a furnace can be supplied. The cooled section of the buffer 2 continues to travel and again absorbs heat from the gas stream 6 in the left-hand part of the housing 4 and a new cycle of heat exchange begins.

Der Zwischenspeicher 2 ist im Wesentlichen aus parallel zu den Gasströmen 6 und 8 angeordneten, im einzelnen nicht dargestellten, Lamellen aus einem gut wärmeleitenden Werkstoff zusammengesetzt und setzt den Gasströmen 6 und 8 nur einen sehr geringen Widerstand entgegen. Trotzdem wird der Zwischenspeicher 2 im Betrieb verunreinigt, so dass seine Wärmeaufnahme ebenso wie seine Fähigkeit diese wieder abzugeben, beeinträchtigt wird. Daraus ergibt sich die Notwendigkeit, den Zwischenspeicher 2 während des Betriebs in periodischen Abständen zu reinigen. Zu diesem Zweck sind Blasarme 9 vorgesehen, die mit ihren freien Enden zwischen dem äußeren Rand 10 und dem inneren Rand 11 des Zwischenspeichers 2 hin- und herschwenkbar sind.The buffer 2 is substantially composed of parallel to the gas streams 6 and 8, not shown in detail, lamellae composed of a good heat-conducting material and sets the gas streams 6 and 8 only a very low resistance. Nevertheless, the buffer 2 is contaminated during operation, so that its heat absorption as well as its ability to give them back, is impaired. This results in the need to periodically clean the buffer 2 during operation. For this purpose, blowing arms 9 are provided which are reciprocable with their free ends between the outer edge 10 and the inner edge 11 of the buffer 2 and herschwenkbar.

An ihren freien Enden tragen die Blasarme 9 Düsen 12. So sind beispielsweise am Ende des eingangsseitig für den Gasstrom 6 angeordneten Blasarm 9 zwei Düsenplatten 12 vorgesehen, davon je eine Niederdruck-Düsenplatte und Hochdruck-Düsenplatte. Eine Niederdruck-Düsenplatte ist geeignet für Dampf, Druckluft und Wasser. Eine Hochdruck-Düsenplatte ist geeignet für Wasser. Auf diese Weise können praktisch alle im Normalbetrieb auftretenden Verschmutzungen gelöst, abgespült und gegebenenfalls auch zerkleinert werden. Diese Verschmutzungen werden dann quer durch den Zwischenspeicher 2 mitgenommen, wobei auf dem ausgangsseitig von dem Zwischenspeicher 2 auf dem zweiten Blasarm vorgesehene Düsen 12 zuverlässig verhindern, dass sich die Verschmutzungen erneut festsetzen. Auf den Blasarmen können Düsen beidseitig gleich angeordnet werden.At their free ends, the blowing arms 9 carry nozzles 12. Thus, for example, two nozzle plates 12 are provided at the end of the inlet side for the gas flow 6 arranged blowing arm 9, each of which a low-pressure nozzle plate and high-pressure nozzle plate. A low-pressure nozzle plate is suitable for steam, compressed air and water. A high pressure nozzle plate is suitable for water. In this way, virtually all contaminants occurring in normal operation can be solved, rinsed and optionally also be comminuted. These contaminants are then taken across the buffer 2, wherein provided on the output side of the latch 2 on the second blowing arm nozzles 12 reliably prevent the dirt settle again. On the blower arms nozzles can be arranged the same on both sides.

Die beiden spiegelbildlich über und unter dem Zwischenspeicher 2 angeordneten Blasarme 9 mit ihren Düsen 12 reinigen die Oberfläche der den Zwischenspeicher 2 bildenden Elemente, so dass deren Wirksamkeit ohne eine Betriebsunterbrechung wiederhergestellt ist. Die gelösten Verunreinigungen werden auch nach dem Austritt aus dem Zwischenspeicher 2 mitgenommen und werden falls erforderlich in einem nachgeschalteten Filter aus dem Abgas abgeschieden und ohne Schaden für die Umwelt beseitigt.The two mirror-image above and below the buffer 2 arranged Blasarme 9 with their nozzles 12 clean the surface of the buffer 2 forming elements so that their effectiveness is restored without an interruption in operation. The dissolved impurities are taken along after leaving the buffer 2 and are separated if necessary in a downstream filter from the exhaust and eliminated without harm to the environment.

Um ein Ablösen auch von verkrusteten Verunreinigungen zu gewährleisten, wird Druckwasser mit bis zu einigen 100 bar eingesetzt, so dass an der Düse 12 für Druckwasser eine nicht unerheblich Rückstoßkraft auftritt. Diese sicher aufzunehmen und gleichzeitig ein Verkanten des Blasarms 9 auszuschließen, sind Lager 13 mit einem Lagerabstand voneinander vorgesehen.In order to ensure a detachment of encrusted impurities, pressurized water is used with up to several 100 bar, so that at the nozzle 12 for pressurized water a considerable recoil force occurs. These safely absorb and at the same time exclude tilting of the Blasarms 9, bearings 13 are provided with a bearing distance from each other.

Regenerative Wärmetauscher 2 der erfindungsgemäßen Art sind in praktisch allen Anlagen einsetzbar, aus denen ein aufgeheiztes Abgas an die Umgebung abgegeben wird. Dabei ermöglichen derartige Wärmetauscher 2 eine Rückgewinnung von Wärmeenergie und sind gleichzeitig als Ansatzpunkte für Filter zweckmäßig. Neben einem wirtschaftlichen Gewinn ermöglichen sie also auch eine Schonung der Umwelt.Regenerative heat exchangers 2 of the type according to the invention can be used in virtually all systems from which a heated exhaust gas is released to the environment. Such heat exchangers 2 allow recovery of heat energy and are at the same time useful as starting points for filters. In addition to an economic gain, they thus also protect the environment.

Claims (10)

Regenerativ-Wärmetauscher für im Wärmeaustausch miteinander stehende Gasströme (6, 8), wobei der Wärmeaustausch über einen dauernd in alle beteiligten Gasströme (6, 8) eintauchenden Zwischenspeicher (2) erfolgt, der von einem an seinem freien Ende Spritzdüsen (12) tragenden schwenkbaren Blasarm (9) reinigbar ist, wobei eine Lagerachse des Blasarms (9) achsparallel zur Strömungsrichtung der Gasströme (6, 8) im Bereich des Zwischenspeichers (2) angeordnet ist und mit ihrer gedachten Verlängerung den Zwischenspeicher (2) durchdringt,
dadurch gekennzeichnet,
dass der Zwischenspeicher (2) eine Symmetrieachse für zwei sich spiegelbildlich gegenüberliegende Blasarme (9) mit mindestens je einer Düse (12) für Druckluft und für Druckwasser bildet.Regenerative heat exchanger for standing in heat exchange gas streams (6, 8), wherein the heat exchange via a permanently in all gas streams involved (6, 8) immersed intermediate memory (2), which by a spray nozzle at its free end (12) carrying pivotable Blasarm (9) is cleanable, wherein a bearing axis of the Blasarms (9) is arranged axially parallel to the flow direction of the gas streams (6, 8) in the region of the intermediate memory (2) and with its imaginary extension penetrates the buffer (2),
characterized,
that the intermediate storage (2) forms an axis of symmetry for two mirror-inverted opposite blowing arms (9) each having at least one nozzle (12) for compressed air and for pressurized water. Regenerativ-Wärmetauscher nach Anspruch 1,
dadurch gekennzeichnet,
dass Achsen von Lagern (13) der Blasarme (9) abgekapselt gegen die beteiligten Gasströme (6, 8) zwischen dem Außenrand (10) des scheibenförmig gestalteten Zwischenspeichers (2) und dessen Mittelachse liegen.Regenerative heat exchanger according to claim 1,
characterized,
that axes of bearings (13) of the blowing arms (9) are encapsulated against the gas flows involved (6, 8) between the outer edge (10) of the disk-shaped intermediate memory (2) and its central axis. Regenerativ-Wärmetauscher nach Anspruch 2,
dadurch gekennzeichnet,
dass der Abstand der Lager (13) vom Außenrand (10) des Zwischenspeichers (2) deutlich kleiner ist, als der Abstand von dessen Mittelachse.Regenerative heat exchanger according to claim 2,
characterized,
that the distance of the bearings (13) from the outer edge (10) of the intermediate store (2) is significantly smaller than the distance from the central axis thereof. Regenerativ-Wärmetauscher nach Anspruch 3,
dadurch gekennzeichnet,
dass die Achsen der Lager (13) der beiden Blasarme (9) miteinander fluchten.Regenerative heat exchanger according to claim 3,
characterized,
that the axes of the bearings (13) of the two blowing arms (9) are aligned with each other. Regenerativ-Wärmetauscher nach Anspruch 1,
dadurch gekennzeichnet,
dass Zuleitungskanäle innerhalb der Blasarme (9) zu den Düsen (12) konzentrisch zueinander angeordnet sind..Regenerative heat exchanger according to claim 1,
characterized,
that supply ducts within the blower arms (9) are arranged concentrically to the nozzles (12) .. Regenerativ-Wärmetauscher nach Anspruch 5,
dadurch gekennzeichnet,
dass sich die Blasarme (9) in Richtung auf ihr freies Ende stufenweise verjüngen.Regenerative heat exchanger according to claim 5,
characterized,
that the blowing arms (9) gradually taper towards its free end. Regenerativ-Wärmetauscher nach Anspruch 6,
dadurch gekennzeichnet,
dass ein Zuleitungskanal für Druckwasser konzentrisch im Blasarm (9) angeordnet ist.Regenerative heat exchanger according to claim 6,
characterized,
that a supply channel for pressurized water is arranged concentrically in the blowing arm (9). Regenerativ-Wärmetauscher nach Anspruch 4,
dadurch gekennzeichnet,
dass ein achsparallel zur Strömungsrichtung der Gasströme (6, 8) abgewinkelter Teil der Blasarme (9) von zwei Lagern (13) geführt ist.Regenerative heat exchanger according to claim 4,
characterized,
in that an angled part of the blowing arms (9) which is angled axially parallel to the flow direction of the gas streams (6, 8) is guided by two bearings (13). Regenerativ-Wärmetauscher nach Anspruch 8,
dadurch gekennzeichnet,
dass die Lager (13) als Wälzlager ausgeführt sind.Regenerative heat exchanger according to claim 8,
characterized,
that the bearings (13) are designed as rolling bearings. Regenerativ-Wärmetauscher nach Anspruch 3,
dadurch gekennzeichnet,
dass die maximalen Auslenkungen der Blasarme (9) bis an den äußeren (10) und den inneren (11) Rand des Zwischenspeichers (2) führen.Regenerative heat exchanger according to claim 3,
characterized,
that the maximum deflections of the blower arms (9) to the outer (10) and the inner (11) edge of the buffer (2) lead.
EP07020309A 2007-10-17 2007-10-17 Regenerative heat exchanger Active EP2051033B1 (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
AT07020309T ATE456777T1 (en) 2007-10-17 2007-10-17 REGENERATIVE HEAT EXCHANGER
PL07020309T PL2051033T3 (en) 2007-10-17 2007-10-17 Regenerative heat exchanger
DE502007002762T DE502007002762D1 (en) 2007-10-17 2007-10-17 A regenerative heat exchanger
ES07020309T ES2340329T3 (en) 2007-10-17 2007-10-17 REGENERATIVE HEAT EXCHANGER.
SI200730218T SI2051033T1 (en) 2007-10-17 2007-10-17 Regenerative heat exchanger
PT07020309T PT2051033E (en) 2007-10-17 2007-10-17 Regenerative heat exchanger
EP07020309A EP2051033B1 (en) 2007-10-17 2007-10-17 Regenerative heat exchanger
DK07020309.6T DK2051033T3 (en) 2007-10-17 2007-10-17 Regenerative heat exchanger
US12/245,561 US8360137B2 (en) 2007-10-17 2008-10-03 Regenerative heat exchanger
SA8290647A SA08290647B1 (en) 2007-10-17 2008-10-15 Regenerative Heat Exchanger
RU2008141205/06A RU2395037C2 (en) 2007-10-17 2008-10-16 Regenerative heat exchanger
CN2008101705038A CN101413770B (en) 2007-10-17 2008-10-17 Regenerative heat exchanger
HK09109456.9A HK1129922B (en) 2007-10-17 2009-10-13 Regenerative heat exchanger
CY20101100369T CY1112373T1 (en) 2007-10-17 2010-04-26 HEAT RECOVERY EXCHANGES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07020309A EP2051033B1 (en) 2007-10-17 2007-10-17 Regenerative heat exchanger

Publications (2)

Publication Number Publication Date
EP2051033A1 true EP2051033A1 (en) 2009-04-22
EP2051033B1 EP2051033B1 (en) 2010-01-27

Family

ID=39233126

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07020309A Active EP2051033B1 (en) 2007-10-17 2007-10-17 Regenerative heat exchanger

Country Status (13)

Country Link
US (1) US8360137B2 (en)
EP (1) EP2051033B1 (en)
CN (1) CN101413770B (en)
AT (1) ATE456777T1 (en)
CY (1) CY1112373T1 (en)
DE (1) DE502007002762D1 (en)
DK (1) DK2051033T3 (en)
ES (1) ES2340329T3 (en)
PL (1) PL2051033T3 (en)
PT (1) PT2051033E (en)
RU (1) RU2395037C2 (en)
SA (1) SA08290647B1 (en)
SI (1) SI2051033T1 (en)

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EP2896921A1 (en) * 2014-01-13 2015-07-22 Alstom Technology Ltd Heat exchanger effluent collector
US20220349664A1 (en) * 2019-07-26 2022-11-03 Geesco Co., Ltd. Heat exchanger cleaning system and heat exchanger cleaning method

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US20140041692A1 (en) 2012-08-07 2014-02-13 Aquarecycle, Llc Apparatus for cleaning a surface
FR3038041B1 (en) * 2015-06-26 2017-07-21 E Beaudrey Et Cie SYSTEM FOR INTERCEPTING AND COLLECTING ALTERNATIVE SCAN CLEANING BODIES
CN112594731B (en) * 2020-12-29 2025-03-18 苏州西热节能环保技术有限公司 A rotary air preheater with steam soot blowing device

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Also Published As

Publication number Publication date
CN101413770B (en) 2010-10-13
SA08290647B1 (en) 2012-04-02
DE502007002762D1 (en) 2010-03-18
US8360137B2 (en) 2013-01-29
EP2051033B1 (en) 2010-01-27
CY1112373T1 (en) 2015-12-09
SI2051033T1 (en) 2010-06-30
CN101413770A (en) 2009-04-22
RU2395037C2 (en) 2010-07-20
PL2051033T3 (en) 2010-10-29
HK1129922A1 (en) 2009-12-11
ATE456777T1 (en) 2010-02-15
RU2008141205A (en) 2010-04-27
PT2051033E (en) 2010-04-30
ES2340329T3 (en) 2010-06-01
US20090139694A1 (en) 2009-06-04
DK2051033T3 (en) 2010-05-31

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