EP0167757A1 - Regenerative heat exchanger - Google Patents
Regenerative heat exchanger Download PDFInfo
- Publication number
- EP0167757A1 EP0167757A1 EP85106063A EP85106063A EP0167757A1 EP 0167757 A1 EP0167757 A1 EP 0167757A1 EP 85106063 A EP85106063 A EP 85106063A EP 85106063 A EP85106063 A EP 85106063A EP 0167757 A1 EP0167757 A1 EP 0167757A1
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- European Patent Office
- Prior art keywords
- storage mass
- sealing
- heat exchanger
- seals
- sealing strips
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- 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.)
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- 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
- F28D19/047—Sealing means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S165/00—Heat exchange
- Y10S165/009—Heat exchange having a solid heat storage mass for absorbing heat from one fluid and releasing it to another, i.e. regenerator
- Y10S165/013—Movable heat storage mass with enclosure
- Y10S165/016—Rotary storage mass
- Y10S165/02—Seal and seal-engaging surface are relatively movable
- Y10S165/021—Seal engaging a face of cylindrical heat storage mass
- Y10S165/023—Brush-type seal
Definitions
- the invention relates to a regenerative heat exchanger with a heat-exchanging storage mass provided with a multiplicity of flow channels and on the front side of each hood which divides the storage mass into at least one part with heat-emitting and one with heat-absorbing gases by means of radial seals continuous rotation between the storage mass and hoods are alternately acted upon by the two gases, seals also being arranged on the circumference between the hoods and a housing accommodating the storage mass.
- Regenerative heat exchangers of the type described above are known, the relative movement between the storage mass and the hoods being generated either by a rotary drive of the storage mass or the hoods.
- the storage mass is divided into individual sectors with the aid of radial partition walls. These radial partitions protrude from the respective end face of the storage mass and work together with their edges with the radial seals that the spokes Subdivide the chemical mass into at least one part with heat-releasing and one with heat-absorbing gases.
- the seals sealing the circumference of the storage mass from the hoods are also at a certain distance from the respective end face of the storage mass; they work together with a frame which is formed on a housing which accommodates the storage mass.
- these radial seals In order to ensure the sealing effect of the radial seals necessary for a relative movement between the storage mass and the hood, these radial seals have a width which corresponds at least to the width of the respective sectors, so that between the flow of the heat-emitting and the heat-absorbing gas there is one sector in the storage mass remains that is not exposed to gas.
- the invention has for its object to develop a regenerative heat exchanger of the type described in such a way that mechanical simplification of the leading edges of the storage mass, which becomes necessary at certain time intervals, is eliminated while simplifying the design and reducing the space requirement.
- the solution to this problem by the invention is characterized in that the radial seals are constructed as sealing strips resiliently abutting directly on the respective flat end face of the storage mass.
- the direct contact of the sealing strips on the flat end faces of the storage mass not only avoids the previous complex construction for the sealing, but also reduces the overall height of the regenerative heat exchanger by the amounts which are the result of the protruding radial partition walls and the complex housing frame for the purpose the sealing.
- the resilient sealing strips lying against the storage mass are structurally considerably simpler and more interchangeable and have the great advantage that they continuously mechanically clean the leading edges of the storage mass with the constant relative movement between the storage mass and hoods, so that the previously necessary downtimes for mechanical cleaning the storage mass is eliminated. Due to the direct interaction of the sealing strips with the respective flat end face of the storage mass, a better sealing effect is achieved and a negative influence on the flow of both gases is avoided.
- the design simplification achieved with the invention thus not only results in advantages in the manufacture and maintenance of the regenerative heat exchanger, but also in an improvement in efficiency and operating behavior.
- the sealing strips can be provided with a sealing element which is softer in relation to the material of the storage mass and which is pressed against the storage mass by spring force.
- the sealing strips are provided with an inherently elastic sealing element which is in direct contact with the storage mass.
- the actual sealing element is formed by a multiplicity of bristles held in a support body, which are bordered on the longitudinal edges of the sealing strips by sealing legs designed as gap seals.
- This embodiment according to the invention results in a highly elastic construction for sealing and cleaning, which moreover adapts to unevenness in the end faces of the storage mass without damaging the storage mass.
- the sealing legs consist of a material which is softer in relation to the material of the storage mass, these can be brought relatively close to the end face of the storage mass, so that there is a considerable improvement in the previous metallic seal, while any wear and tear other parts of the system is avoided.
- the bristles held in the support body and, if necessary, the sealing legs can be replaced in a simple manner and represent a negligibly small impediment to the flow for the two heat-exchanging gases.
- the training according to the invention can in particular on Regenera tive heat exchangers for heating the clean gases behind desulfurization systems and for air preheating as well as generally for regenerative heat exchangers with heavily polluting leading edges of the storage mass.
- the storage mass 1 provided with a large number of flow channels stands still, whereas the hood 2, which is shown at a distance from the flat end face of the storage mass 1, is driven in rotation due to the better visibility.
- the hood 2 which is shown at a distance from the flat end face of the storage mass 1
- the hood 2 is provided with radial sealing strips 3.
- four sealing strips 3 each running over the length of the radius are provided, which are arranged in the manner of a cross and each form two channels opposite one another with respect to the center of rotation, on the one hand for the heat-emitting gas and on the other hand for the heat-absorbing gas.
- the respective circular arcs present between two radially extending sealing strips 3 on the circumference of the hood 2 are also provided with sealing strips 4 which, in the exemplary embodiment, are composed of individual pieces.
- the sealing strips 3 rest directly against the respective flat end face of the storage mass 1.
- the sealing strips 3 have an inherently elastic sealing element which is formed by a plurality of bristles 6 held in a supporting body 5. These bristles are bordered on the longitudinal edges of the sealing strips 3 by sealing legs 7 designed as gap seals.
- This sealing leg 7 preferably consists of a material which is softer in relation to the material of the storage mass 1, so that its edges facing the storage mass 1 can be brought relatively close to the storage mass 1. As a result, a good sealing effect is achieved by the sealing leg 7, which is supported by the bristles 6.
- the sealing legs 7 are arranged on a support profile 8 together with the support body 5 and the bristles 6.
- This support profile 8 is at an Ab final profile 9 arranged, which in turn is attached to a chamber profile 10 formed of two U-profiles of the hood 2.
- the actual sealing element 11 of the sealing strip 3 is made of a material which is richer in relation to the material of the storage mass 1 and which has no inherent elasticity.
- the resilient pressing action is achieved in this embodiment by springs 12 which are arranged between the support profile 8 and the sealing element 11.
- the sealing strips 4 arranged on the circumference of the hood 2 are designed in the manner described with reference to FIG. 2. Intended course, it is possible to perform the sealing strips 3 and 4 different sealing strips, since only the sealing strips 3 g of a cleaning addition to its sealing function ungs- effectively produce.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air Supply (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Die Erfindung betrifft einen Regenerativ-Wärmeaustauscher mit einer wärmetauschenden, mit einer Vielzahl von Strömungskanälen versehenen Speichermasse und stirnseitig je einer Haube, die die Speichermasse mittels radialer Dichtungen in mindestens jeweils einen mit wärmeabgebenden und einen mit wärmeaufnehmen-den Gasen beaufschlagten Teil unterteilt, die durch eine kon-tinuierliche Drehbewegung zwischen Speichermasse und Hauben abwechselnd mit den beiden Gasen beaufschlagt werden, wobei am Umfang zwischen den Hauben und einem die Speichermasse aufnehmenden Gehäuse ebenfalls Dichtungen angeordnet sind. Um die Konstruktion zu vereinfachen, den Raumbedarf verringern sowie den Wirkungsgrad zu verbessern und periodische Stillstandszeiten zur Reinigung insbesondere der Anströmkanten der Speichermassen zu vermeiden, sind die radialen Dichtungen als unmittelbar an der jeweiligen ebenen Stirnfläche der Speichermasse federnd anliegende Dichtleisten ausgebildet. Das federnde Anliegen kann entweder durch spezielle Federelemente oder durch Eigenelastizität der Dichtleisten erreicht werden. Als eigentliche Abdichtelemente können eine Vielzahl von in einem Tragkörper gehaltenen Borsten verwendet werden, die an den Längskanten der Dichtleisten von als Spaltdichtungen ausgebildeten Dichtschenkeln eingefaßt sind.The invention relates to a regenerative heat exchanger with a heat-exchanging storage mass provided with a multiplicity of flow channels and on the front side of each hood which divides the storage mass by means of radial seals into at least one part with heat-emitting and one with heat-absorbing gases, which are divided by one continuous rotation between the storage mass and hoods are alternately acted upon by the two gases, seals also being arranged on the circumference between the hoods and a housing accommodating the storage mass. In order to simplify the construction, reduce the space requirement and improve the efficiency and to avoid periodic downtimes for cleaning, in particular, the leading edges of the storage masses, the radial seals are designed as resilient sealing strips lying directly on the respective flat end face of the storage mass. The resilient contact can be achieved either by special spring elements or by the elasticity of the sealing strips. A large number of bristles held in a support body can be used as the actual sealing elements, which are bordered on the longitudinal edges of the sealing strips by sealing legs designed as gap seals.
Description
Die Erfindung betrifft einen Regenerativ-Wärmeaustsuscher mit einer wärmetauschenden, mit einer Vielzahl von Strömungskanälen versehenen Speichermasse und stirnseitig je einer Haube, die die Speichermasse mittels radialer Dichtungen in mindestens jeweils einen mit wärmeabcebenden und einen mit wärmeaufnehmen- den Gasen beaufschlagten Teil unterteilt, die durch eine kon- tinuierliche Drehbewegung zwischen Speichermasse und Hauben abwechselnd rit den beiden Gasen beaufschlagt werden, wobei am Umfang zwischen den Hauben und einem die Speichermasse aufnehmenden Gehäuse ebenfalls Dichtungen angeordnet sind.The invention relates to a regenerative heat exchanger with a heat-exchanging storage mass provided with a multiplicity of flow channels and on the front side of each hood which divides the storage mass into at least one part with heat-emitting and one with heat-absorbing gases by means of radial seals continuous rotation between the storage mass and hoods are alternately acted upon by the two gases, seals also being arranged on the circumference between the hoods and a housing accommodating the storage mass.
Regenerativ-Wärmeaustauscher der voranstehend beschriebenen Art sind bekannt, wobei die Relativbewegung zwischen Speichermasse und Hauben entweder durch einen Drehantrieb der Speichermasse oder der Hauben erzeugt wird.Regenerative heat exchangers of the type described above are known, the relative movement between the storage mass and the hoods being generated either by a rotary drive of the storage mass or the hoods.
Bei den bekannten Regenerativ-Wärmeaustauschern ist die Speichermasse mit Hilfe von radialen Trennwänden in einzelne Sektoren unterteilt. Diese radialen Trennwände überragen die jeweilige Stirnfläche der Speichermasse und arbeiten mit ihren Kanten mit den radialen Dichtungen zusammen, welche die Speichermasse in mindestens jeweils einen mit wärmeabgebenden und einen mit wärmeaufnehmenden Gasen beaufschlagten Teil unterteilen. Auch die den Umfang der Speichermasse gegenüber der Hauben abdichtenden Dichtungen liegen in einem gewissen Abstand von der jeweiligen Stirnfläche der Speichermasse; sie arbeiten mit einem Rahmen zusammen, der an einem die Speichermasse aufnehmenden Gehäuse ausgebildet ist.In the known regenerative heat exchangers, the storage mass is divided into individual sectors with the aid of radial partition walls. These radial partitions protrude from the respective end face of the storage mass and work together with their edges with the radial seals that the spokes Subdivide the chemical mass into at least one part with heat-releasing and one with heat-absorbing gases. The seals sealing the circumference of the storage mass from the hoods are also at a certain distance from the respective end face of the storage mass; they work together with a frame which is formed on a housing which accommodates the storage mass.
Um die bei einer Relativbewegung zwischen Speichermasse und Haubennotwendige Dichtwirkung der radialen Dichtungen sicherzustellen, haben diese radialen Dichtungen eine Breite, die mindestens der Breite der jeweiligen Sektoren entspricht, so daß zwischen dem Strom des wärmeabgebenden und des wärmeaufnehmen- den Gases jeweils ein Sektor in der Speichermasse verbleibt, der nicht mit Gas beaufschlagt wird.In order to ensure the sealing effect of the radial seals necessary for a relative movement between the storage mass and the hood, these radial seals have a width which corresponds at least to the width of the respective sectors, so that between the flow of the heat-emitting and the heat-absorbing gas there is one sector in the storage mass remains that is not exposed to gas.
Diese bekannten Ausführungen von Regenerativ-Wärmeaustauschern haben nicht nur den Nachteil einer großen Bauhöhe durch gegenüber der Speichermasse überstehende Trennwände und GehäuseRahmen, sondern erfordern auch eine aufwendige Ausbildung des Tragkörpers und des Gehäuses für die Speichermasse, weil diese Teile für die Abdichtung herangezogen werden müssen. Schließlich besitzen auch die Dichtungen eine aufwendige Konstruktion, so daß die Strömung für beide Gase ungünstig beeinflußt wird. Ein weiterer entscheidender Nachteil besteht darin, daß die wärmetauschenden Heizflächen der Speichermasse von Zeit zu Zeit mit Reinigungsfluid gereinigt werden müssen, weil insbesondere die Anströmkanten der in der Speichermasse ausgebildeten Strömungskanäle verschmutzen oder sogar verstopfen. Wenn es zu derartigen Verstopfungen kommt, können diese normalerweise nicht mehr durch Reinigungsfluid beseitigt werden, so daß es notwendig ist, den Regenerativ-Wärmeaustauscher stillzusetzen und die Anströmkanten mechanisch zu reinigen.These known versions of regenerative heat exchangers not only have the disadvantage of a large overall height due to partitions and housing frames projecting from the storage mass, but also require a complex design of the support body and the housing for the storage mass, because these parts have to be used for the sealing. Finally, the seals also have a complex construction, so that the flow for both gases is adversely affected. Another decisive disadvantage is that the heat-exchanging heating surfaces of the storage mass have to be cleaned from time to time with cleaning fluid, because in particular the leading edges of the flow channels formed in the storage mass become dirty or even clogged. If such blockages occur, these can normally no longer be removed by cleaning fluid, so that it is necessary to shut down the regenerative heat exchanger and to mechanically clean the leading edges.
Der Erfindung liegt die Aufgabe zugrunde, einen Regenerativ-Wärmeaustauscher der eingangs beschriebenen Art derart weiterzubilden, daß bei gleichzeitiger Konstruktionsvereinfachung und Verringerung des Raumbedarfs eine in gewissen Zeitabständen notwendig werdende mechanische Reinigung der Anströmkanten der Speichermasse entfällt.The invention has for its object to develop a regenerative heat exchanger of the type described in such a way that mechanical simplification of the leading edges of the storage mass, which becomes necessary at certain time intervals, is eliminated while simplifying the design and reducing the space requirement.
Die Lösung dieser Aufgabenstellung durch die Erfindung ist dadurch gekennzeichnet, daß die radialen Dichtungen als unmittelbar an der jeweiligen ebenen Stirnfläche der Speichermasse federnd anliegende Dichtleisten ausgebildet sind.The solution to this problem by the invention is characterized in that the radial seals are constructed as sealing strips resiliently abutting directly on the respective flat end face of the storage mass.
Durch das unmittelbare Anliegen der Dichtleisten an den ebenen Stirnflächen der Speichermasse wird nicht nur die bisherige aufwendige Konstruktion für die Abdichtung vermieden, sondern auch die Bauhöhe des Regenerativ-Wärmeaustauschers um diejenigen Beträge verringert, die sich durch die hervorstehenden radialen Trennwände und die aufwendigen Gehäuserahmen zum Zwecke der Abdichtung ergaben. Die federnd an der Speichermasse anliegenden Dichtleisten sind konstruktiv erheblich einfacher sowie besser austauschbar und ergeben den großen Vorteil, daß sie bei der ständigen Relativbewegung zwischen Speichermasse und Hauben kontinuierlich eine mechanische Reinigung der Anströmkanten der Speichermasse bewirken, so daß die bisher notwendigen Stillstandszeiten für die mechanische Reinigung der Speichermasse entfallen. Durch das unmittelbare Zusammenwirken der Dichtleisten mit der jeweils ebenen Stirnfläche der Speichermasse wird sowohl eine bessere Abdichtwirkung erzielt als auch eine negative Beeinflussung der Strömung beider Gase vermieden. Die mit der Erfindung erzielte Konstruktionsvereinfachung hat somit nicht nur Vorteile bei der Herstellung und Wartung des Regenerativ-Wärmeaustauschers zur Folge, sondern auch eine Verbesserung des Wirkungsgrades und des Betriebsverhaltens.The direct contact of the sealing strips on the flat end faces of the storage mass not only avoids the previous complex construction for the sealing, but also reduces the overall height of the regenerative heat exchanger by the amounts which are the result of the protruding radial partition walls and the complex housing frame for the purpose the sealing. The resilient sealing strips lying against the storage mass are structurally considerably simpler and more interchangeable and have the great advantage that they continuously mechanically clean the leading edges of the storage mass with the constant relative movement between the storage mass and hoods, so that the previously necessary downtimes for mechanical cleaning the storage mass is eliminated. Due to the direct interaction of the sealing strips with the respective flat end face of the storage mass, a better sealing effect is achieved and a negative influence on the flow of both gases is avoided. The design simplification achieved with the invention thus not only results in advantages in the manufacture and maintenance of the regenerative heat exchanger, but also in an improvement in efficiency and operating behavior.
Gemäß einem weiteren Merkmal der Erfindung können die Dichtleisten mit einem im Verhältnis zum Material der Speichermasse weicheren Abdichtelement versehen sein, das durch Federkraft an die Speichermasse angedrückt wird. Bei einer alternativen Ausführungsform der Erfindung sind die Dichtleisten mit einem eigenelastischen, unmittelbar an der Speichermasse anliegenden Abdichtelement versehen. Das federnde Andrücken der erfindungsgemäßen Dichtleisten an die ebenen Stirnflächen der Speichermasse kann somit sowohl durch die Ausnutzung elastischer Materialeigenschaften als auch durch die Verwendung von Federn erzielt werden, wobei neben eigentlichen Federelementen auch Luft- oder Gasfedern eingesetzt werden können.According to a further feature of the invention, the sealing strips can be provided with a sealing element which is softer in relation to the material of the storage mass and which is pressed against the storage mass by spring force. In an alternative embodiment of the invention, the sealing strips are provided with an inherently elastic sealing element which is in direct contact with the storage mass. The resilient pressing of the sealing strips according to the invention against the flat end faces of the storage mass can thus be achieved both through the use of elastic material properties and through the use of springs, wherein air or gas springs can also be used in addition to the actual spring elements.
Bei einer bevorzugten Ausführungsform der Erfindung ist das eigentliche Abdichtelement durch eine Vielzahl von in einem Tragkörper gehaltenen Borsten gebildet, die an den Längskanten der Dichtleisten von als Spaltdichtungen ausgebildeten Dichtschenkeln eingefaßt sind. Diese erfindungsgemäße Ausführung ergibt eine hochelastische Konstruktion für die Abdichtung und Reinigung, die sich darüber hinaus an Unebenheiten der Stirnflächen der Speichermasse anpaßt, ohne die Speichermasse zu beschädigen. Wenn gemäß einem weiteren Merkmal der Erfindung die Dichtschenkel aus einem im Verhältnis zum Material der Speichermasse weicheren Material bestehen, können diese verhältnismäßig dicht an die Stirnfläche der Speichermasse herangeführt werden, so daß sich eine erhebliche Verbesserung der bisherigen metallischen Abdichtung ergibt, wobei gleichzeitig jeglicher Verschleiß der übrigen Anlageteile vermieden wird. Die im Tragkörper gehaltenen Borsten und gegebenenfalls die Dichtschenkel können auf einfache Weise ausgewechselt werden und stellen eine vernachlässigbar kleine Behinderung der Strömung für die beiden wärmeaustauschenden Gase dar.In a preferred embodiment of the invention, the actual sealing element is formed by a multiplicity of bristles held in a support body, which are bordered on the longitudinal edges of the sealing strips by sealing legs designed as gap seals. This embodiment according to the invention results in a highly elastic construction for sealing and cleaning, which moreover adapts to unevenness in the end faces of the storage mass without damaging the storage mass. If, according to a further feature of the invention, the sealing legs consist of a material which is softer in relation to the material of the storage mass, these can be brought relatively close to the end face of the storage mass, so that there is a considerable improvement in the previous metallic seal, while any wear and tear other parts of the system is avoided. The bristles held in the support body and, if necessary, the sealing legs can be replaced in a simple manner and represent a negligibly small impediment to the flow for the two heat-exchanging gases.
Die erfindungsgemäße Ausbildung kann insbesondere an Regenerativ-Wärmeaustauschern zur Aufheizung der Reingase hinter Entschwefelungsanlagen sowie zur Luftvorwärmung sowie generell bei Regenerativ-Wärmeaustauschern mit stark verschmutzenden Anströmkanten der Speichermasse verwendet werden.The training according to the invention can in particular on Regenera tive heat exchangers for heating the clean gases behind desulfurization systems and for air preheating as well as generally for regenerative heat exchangers with heavily polluting leading edges of the storage mass.
Auf der Zeichnung ist ein Ausführungsbeispiel eines Regenera- tiv-Wärmeaustauschers gemäß der Erfindung dargestellt, und zwar zeigen:
- Fig. 1 eine perspektivische Ansicht der Speichermasse und einer Haube eines im übrigen nicht darge-stellen Regenerativ-Wärmeaustauschers,
- Fig. 2 einen Teilschnitt durch eine radiale Dichtung der Haube gemäß der Schnittlinie 11-11 in Fig. 1 und
- Fig. 3 eine der Fig. 2 entsprechende Darstellung einer alternativen Ausführungsform der Dichtleiste.
- Fig. 1 is a perspective view of the storage mass and a hood of a make-e in the remaining non g represents regenerative heat exchanger,
- Fig. 2 is a partial section through a radial seal of the hood according to section line 11-11 in Fig. 1 and
- Fig. 3 is a representation corresponding to FIG. 2 of an alternative embodiment of the sealing strip.
Bei dem als Ausführungsbeispiel schematisch dargestellten Regenerativ-Wärmeaustauscher nach Fig. 1 steht die mit einer Vielzahl von Strömungskanälen versehene Speichermasse 1 still, wogegen die der besseren Erkennbarkeit wegen im Abstand von der ebenen Stirnfläche der Speichermasse 1 gezeichnete Haube 2 drehend angetrieben ist. Selbstverständlich ist es auch möglich, die Haube 2 stillzusetzen und die Speichermasse 1 drehend anzutreiben.In the regenerative heat exchanger shown schematically as an exemplary embodiment according to FIG. 1, the storage mass 1 provided with a large number of flow channels stands still, whereas the
Um eine Abdichtung zwischen Speichermasse 1 und Haube 2 zu erzielen und während der relativen Drehbewegung die Speichermasse 1 ständig in mindestens jeweils einen mit wärmeabgebenden und einen mit wärmeaufnehmenden Gasen beaufschlagten Teil zu unterteilen, ist die Haube 2 mit radial verlaufenden Dichtleisten 3 versehen. Beim Ausführungsbeispiel sind vier jeweils über die Länge des Radius verlaufende Dichtleisten 3 vorgesehen, die in der Art eines Kreuzes angeordnet sind und jeweils zwei einander bezüglich des Drehmittelpunktes gegenüberliegende Kanäle einerseits für das wärmeabgebende und andererseits für das wärmeaufnehmende Gas bilden. Die jeweils zwischen zwei radial verlaufenden Dichtleisten 3 am Umfang der Haube 2 vorhandenen Kreisbogen sind ebenfalls mit Dichtleisten 4 versehen, die beim Ausführungsbeispiel aus einzelnen Stücken zusammengesetzt sind.In order to achieve a seal between the storage mass 1 and the
Wie aus dem Teilschnitt gemäß Fig. 2 hervorgeht, liegen die radial verlaufenden Dichtleisten 3 unmittelbar an der jeweiligen ebenen Stirnfläche der Speichermasse 1 federnd an. Beim Ausführungsbeispiel nach Fig. 2 besitzen die Dichtleisten 3 ein eigenelastisches Abdichtelement, das durch eine Vielzahl von in einem Tragkörper 5 gehaltenen Borsten 6 gebildet ist. Diese Borsten sind an den Längskanten der Dichtleisten 3 von als Spaltdichtungen ausgebildeten Dichtschenkeln 7 eingefaßt. Diese Dichtschenkel 7 bestehend vorzugsweise aus einem im Verhältnis zum Material der Speichermasse 1 weicheren Material., so daß ihre der Speichermasse 1 zugewandten Kanten verhältnismäßig nahe an die Speichermasse 1 herangeführt werden können. Hierdurch wird bereits durch die Dichtschenkel 7 eine gute Abdichtwirkung erzielt, die durch die Borsten 6 unterstützt wird. Diese Borsten 6 sorgen beim Umlauf der Haube 2 relativ zur Speichermasse 1 schließlich dafür, daß die Anströmkanten der Speichermasse 1 ständig mechanisch sauber gehalten werden.As can be seen from the partial section according to FIG. 2, the radially extending
Beim Ausführungsbeispiel nach Fig. 2 sind die Dichtschenkel 7 an einem Tragprofil 8 gemeinsam mit dem Tragkörper 5 und den Borsten 6 angeordnet. Dieses Tragprofil 8 ist an einem Abschlußprofil 9 angeordnet, das wiederum an einem aus zwei U-Profilen gebildeten Kammerprofil 10 der Haube 2 befestigt ist.2, the
Bei der alternativen Ausführungsform nach Fig. 3 ist das eigentliche Abdichtelement 11 der Dichtleiste 3 aus einem im Verhältnis zum Material der Speichermasse 1 reicheren Material hergestellt, das keine Eigenelastizität besitzt. Die federnde Andrückwirkung wird bei dieser Ausführungsform durch Federn 12 erzielt, die zwischen dem Tragprofil 8 und dem Abdichtelement 11 angeordnet sind.In the alternative embodiment according to FIG. 3, the
Wie die Fig. 1 erkennen läßt, sind beim Ausführungsbeispiel auch die am Umfang der Haube 2 angeordneten Dichtleisten 4 in der mit Bezug auf Fig. 2 beschriebenen Art ausgebildet. Selbstverständlich ist es möglich, die Dichtleisten 3 und Dichtleisten 4 unterschiedlich auszuführen, da ausschließlich die Dichtleisten 3 neben ihrer Dichtfunktion eine Reinigungs- wirkung erzeugen sollen.As can be seen from FIG. 1, in the exemplary embodiment the
Claims (5)
daß die radialen Dichtungen als unmittelbar an der jeweiligen ebenen Stirnfläche der Speichermasse (1) federnd anliegende Dichtleisten (3) ausgebildet sind.1. Regenerative heat exchanger with a heat-exchanging storage mass provided with a large number of flow channels and a hood on each end that divides the storage mass into at least one part with heat-emitting and one with heat-absorbing gases by means of radial seals, which is caused by a continuous rotary movement between the storage mass and the hoods are alternately charged with the two gases, seals also being arranged on the circumference between the hoods and a housing receiving the storage mass, characterized in that
that the radial seals are formed as sealing strips (3) resiliently abutting directly on the respective flat end face of the storage mass (1).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE3423962 | 1984-06-29 | ||
DE19843423962 DE3423962A1 (en) | 1984-06-29 | 1984-06-29 | REGENERATIVE HEAT EXCHANGER |
Publications (2)
Publication Number | Publication Date |
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EP0167757A1 true EP0167757A1 (en) | 1986-01-15 |
EP0167757B1 EP0167757B1 (en) | 1987-09-16 |
Family
ID=6239439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85106063A Expired EP0167757B1 (en) | 1984-06-29 | 1985-05-17 | Regenerative heat exchanger |
Country Status (7)
Country | Link |
---|---|
US (1) | US4651809A (en) |
EP (1) | EP0167757B1 (en) |
JP (1) | JPS6115086A (en) |
DE (1) | DE3423962A1 (en) |
ES (1) | ES8609691A1 (en) |
IN (1) | IN160619B (en) |
MX (1) | MX161262A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8505923B2 (en) | 2009-08-31 | 2013-08-13 | Sealeze, A Unit of Jason, Inc. | Brush seal with stress and deflection accommodating membrane |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5137078A (en) * | 1990-05-11 | 1992-08-11 | Borowy William J | Air heater seals |
US20070089283A1 (en) * | 2005-10-21 | 2007-04-26 | Wilson David G | Intermittent sealing device and method |
DE102005053378B4 (en) * | 2005-11-07 | 2011-12-08 | Rwe Power Ag | Rotating regenerative air or gas preheater |
DE102006034483A1 (en) * | 2006-07-21 | 2008-01-24 | Alstom Technology Ltd. | Regenerative air preheater with brush seal |
US20090101302A1 (en) * | 2007-10-17 | 2009-04-23 | Tupper Myron D | Dynamic heat exchanger |
EP2458315B1 (en) * | 2010-11-25 | 2017-01-04 | Balcke-Dürr GmbH | Regenerative heat exchanger with forced rotor seal |
US9561476B2 (en) | 2010-12-15 | 2017-02-07 | Praxair Technology, Inc. | Catalyst containing oxygen transport membrane |
US9486735B2 (en) | 2011-12-15 | 2016-11-08 | Praxair Technology, Inc. | Composite oxygen transport membrane |
CN103987681B (en) | 2011-12-15 | 2016-08-24 | 普莱克斯技术有限公司 | Compound oxygen transport membrane |
WO2014100376A1 (en) | 2012-12-19 | 2014-06-26 | Praxair Technology, Inc. | Method for sealing an oxygen transport membrane assembly |
US9453644B2 (en) | 2012-12-28 | 2016-09-27 | Praxair Technology, Inc. | Oxygen transport membrane based advanced power cycle with low pressure synthesis gas slip stream |
US9938145B2 (en) | 2013-04-26 | 2018-04-10 | Praxair Technology, Inc. | Method and system for adjusting synthesis gas module in an oxygen transport membrane based reforming system |
US9212113B2 (en) | 2013-04-26 | 2015-12-15 | Praxair Technology, Inc. | Method and system for producing a synthesis gas using an oxygen transport membrane based reforming system with secondary reforming and auxiliary heat source |
US9611144B2 (en) | 2013-04-26 | 2017-04-04 | Praxair Technology, Inc. | Method and system for producing a synthesis gas in an oxygen transport membrane based reforming system that is free of metal dusting corrosion |
US9296671B2 (en) | 2013-04-26 | 2016-03-29 | Praxair Technology, Inc. | Method and system for producing methanol using an integrated oxygen transport membrane based reforming system |
BR112016007552A2 (en) | 2013-10-07 | 2017-08-01 | Praxair Technology Inc | oxygen transport membrane panel, oxygen transport membrane tube assemblies and reforming reactor blocks, oxygen transport membrane arrangement module, synthesis gas furnace train, and synthesis gas plant |
MX2016004567A (en) | 2013-10-08 | 2016-07-21 | Praxair Technology Inc | System and method for temperature control in an oxygen transport membrane based reactor. |
WO2015084729A1 (en) | 2013-12-02 | 2015-06-11 | Praxair Technology, Inc. | Method and system for producing hydrogen using an oxygen transport membrane based reforming system with secondary reforming |
US9562472B2 (en) | 2014-02-12 | 2017-02-07 | Praxair Technology, Inc. | Oxygen transport membrane reactor based method and system for generating electric power |
US10822234B2 (en) | 2014-04-16 | 2020-11-03 | Praxair Technology, Inc. | Method and system for oxygen transport membrane enhanced integrated gasifier combined cycle (IGCC) |
US9789445B2 (en) | 2014-10-07 | 2017-10-17 | Praxair Technology, Inc. | Composite oxygen ion transport membrane |
US10441922B2 (en) | 2015-06-29 | 2019-10-15 | Praxair Technology, Inc. | Dual function composite oxygen transport membrane |
US10118823B2 (en) | 2015-12-15 | 2018-11-06 | Praxair Technology, Inc. | Method of thermally-stabilizing an oxygen transport membrane-based reforming system |
US9938146B2 (en) | 2015-12-28 | 2018-04-10 | Praxair Technology, Inc. | High aspect ratio catalytic reactor and catalyst inserts therefor |
KR102154420B1 (en) | 2016-04-01 | 2020-09-10 | 프랙스에어 테크놀로지, 인코포레이티드 | Catalyst-containing oxygen transport membrane |
EP3797085A1 (en) | 2018-05-21 | 2021-03-31 | Praxair Technology, Inc. | Otm syngas panel with gas heated reformer |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR957953A (en) * | 1943-01-28 | 1950-03-02 | ||
US2549656A (en) * | 1947-10-10 | 1951-04-17 | Air Preheater | Radial brush seal for heat exchangers |
FR2204276A5 (en) * | 1972-10-19 | 1974-05-17 | Bennes Marrel | |
US3907310A (en) * | 1971-02-25 | 1975-09-23 | Gas Dev Corp | Floating seal construction |
US3939903A (en) * | 1972-11-20 | 1976-02-24 | Nissan Motor Co., Ltd. | Seal assembly for a rotary regenerative heat exchanger |
GB2119037A (en) * | 1982-04-22 | 1983-11-09 | Steinmueller Gmbh L & C | A sealing system for a regenerative heat exchanger |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1746598A (en) * | 1924-11-28 | 1930-02-11 | Ljungstroms Angturbin Ab | Regenerative-heat-transmission apparatus |
GB250172A (en) * | 1925-04-03 | 1927-02-21 | Josef Schwab | Improvements in regenerator air heaters |
SE332052B (en) * | 1967-07-20 | 1971-01-25 | Munters C | |
DE2431676A1 (en) * | 1974-07-02 | 1976-01-22 | Daimler Benz Ag | Seal for a regenerative heat exchanger - using nickel as sealing strip with a sliding layer and an elastic connecting piece |
JPS5631514A (en) * | 1979-08-17 | 1981-03-30 | Kazuhide Sakurada | Soundproofed nail |
US4399863A (en) * | 1981-12-21 | 1983-08-23 | Institute Of Gas Technology | Floating seal system for rotary devices |
DE8211583U1 (en) * | 1982-04-22 | 1982-08-12 | L. & C. Steinmüller GmbH, 5270 Gummersbach | SEALING SYSTEM FOR A REGENERATIVE HEAT EXCHANGER WITH A ROTATING ROTOR |
-
1984
- 1984-06-29 DE DE19843423962 patent/DE3423962A1/en active Granted
-
1985
- 1985-05-17 EP EP85106063A patent/EP0167757B1/en not_active Expired
- 1985-06-14 JP JP60128416A patent/JPS6115086A/en active Pending
- 1985-06-21 IN IN153/BOM/85A patent/IN160619B/en unknown
- 1985-06-25 ES ES544529A patent/ES8609691A1/en not_active Expired
- 1985-06-27 US US06/749,299 patent/US4651809A/en not_active Expired - Fee Related
- 1985-06-27 MX MX205809A patent/MX161262A/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR957953A (en) * | 1943-01-28 | 1950-03-02 | ||
US2549656A (en) * | 1947-10-10 | 1951-04-17 | Air Preheater | Radial brush seal for heat exchangers |
US3907310A (en) * | 1971-02-25 | 1975-09-23 | Gas Dev Corp | Floating seal construction |
FR2204276A5 (en) * | 1972-10-19 | 1974-05-17 | Bennes Marrel | |
US3939903A (en) * | 1972-11-20 | 1976-02-24 | Nissan Motor Co., Ltd. | Seal assembly for a rotary regenerative heat exchanger |
GB2119037A (en) * | 1982-04-22 | 1983-11-09 | Steinmueller Gmbh L & C | A sealing system for a regenerative heat exchanger |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8505923B2 (en) | 2009-08-31 | 2013-08-13 | Sealeze, A Unit of Jason, Inc. | Brush seal with stress and deflection accommodating membrane |
Also Published As
Publication number | Publication date |
---|---|
ES8609691A1 (en) | 1986-07-16 |
JPS6115086A (en) | 1986-01-23 |
DE3423962A1 (en) | 1986-01-02 |
IN160619B (en) | 1987-07-18 |
MX161262A (en) | 1990-08-24 |
EP0167757B1 (en) | 1987-09-16 |
DE3423962C2 (en) | 1988-12-08 |
US4651809A (en) | 1987-03-24 |
ES544529A0 (en) | 1986-07-16 |
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