EP0037541B1 - Gastight door for a vessel for chemical reactions - Google Patents

Gastight door for a vessel for chemical reactions Download PDF

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Publication number
EP0037541B1
EP0037541B1 EP81102364A EP81102364A EP0037541B1 EP 0037541 B1 EP0037541 B1 EP 0037541B1 EP 81102364 A EP81102364 A EP 81102364A EP 81102364 A EP81102364 A EP 81102364A EP 0037541 B1 EP0037541 B1 EP 0037541B1
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EP
European Patent Office
Prior art keywords
door
sealing
filled
gas
hollow chamber
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EP81102364A
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German (de)
French (fr)
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EP0037541A1 (en
Inventor
Hans-Josef Giertz
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Bergwerksverband GmbH
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Bergwerksverband GmbH
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Publication of EP0037541A1 publication Critical patent/EP0037541A1/en
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B25/00—Doors or closures for coke ovens
    • C10B25/02—Doors; Door frames
    • C10B25/16—Sealing; Means for sealing

Definitions

  • the invention relates to a gas-tight door for a reactor space according to the preamble of claim 1.
  • Such gas-tight doors for reactor rooms are used above all when the chemical reaction taking place therein is carried out at relatively high temperatures and the gases formed cannot be held back with sufficient reliability by a simple seal, i.e. they represent an environmental burden due to undesired escape from the reactor room door.
  • a preferred field of application of such gas-tight doors for reactor rooms is coke oven chambers, in particular those with vertical chamber doors.
  • the object of the invention is to provide a gas-tight door of a reactor space according to the preamble of the main claim, the outer seal with respect to the door opening is wear-resistant to temperature influences and prevents the penetration of sealing liquid into the reactor space. Furthermore, it should be achieved that the gas tightness compared to known solutions is improved and the seal is easy to maintain. Finally, the aim is to ensure that the seal remains as functional as possible even when the components warp.
  • the first tubular cavity is filled with inert gas and with an inlet and an outlet for the inert gas.
  • the vapor of the sealing liquid is preferably the inert gas.
  • FIG. 1 shows a vertical section of a gas-tight door of a reactor room. This representation is to be understood purely schematically, since it does not contain the trough 8 or 10, which is essential to the invention, as shown in FIGS. 2, 3 and 4 to be described.
  • a reactor room 1 is shown with a door frame 2b and associated door 2a.
  • An inner door seal 3 and sealing blades 4a and 4c can be fastened to both the door 2a and the door frame 2b.
  • the door seal 3 and the sealing blades 4a and 4c form tubular cavities 4b and 6, so that an inner gas-filled sealing system 3, 6, 4a and an outer sealing system 4a, 4b, 4c filled with sealing liquid are produced.
  • the sealing liquid Before opening and closing door 2a, the sealing liquid must be drained or refilled. This is done through inlets and outlets 5a and 5b.
  • valves 7 on the outlet side of the tubular cavity 4b of the liquid-filled seal 4a, 4b, 4c, which is on the outside with respect to the door opening, and to adjust these in the closed state of the door so that the sealing liquid, which is continuously fed via the inlet 5a, flows through the cavity 4b filled by it at a certain speed.
  • This has the advantage that the sealing liquid is exposed to particularly high temperatures not heated up too much and in the event of leakage, ie leakage of the sealing liquid from the cavity 4b filled by it, so much sealing liquid can always be added that its function is constantly maintained.
  • the sealing liquid thus represents both sealant and cooling.
  • Sealing liquid penetrating into the first tubular cavity 6 flows at its lower end together with the remaining sealing liquid into a collecting trough 8, the liquid level of which seals the two sealing systems from the outside.
  • the outer door seal 4a, 4b, 4c is designed in its upper region as a channel 11 open at the top.
  • This is a simplified embodiment of the corresponding solution in FIG. 2, leaving out the uppermost sealing cutting edge 4c.
  • This embodiment can only be used with doors 2a which are essentially vertical, since the sealing liquid would otherwise leak.
  • the channel 11 has the advantage that it can be used like a storage basin which is known per se, the level being kept at a constant level by a weir or a float valve. An overfilling of the trough 11 can, for. B. can be prevented by a well-known overflow system.
  • the trough 10 filled with sealing liquid is filled or raised so high that the liquid level closes off the first tubular cavity 6, which is open towards the bottom, from the atmosphere.
  • the lower ends of the outer door seal 4a, 4b, 4c are so deep in the sealing liquid of the tub 10 that the control valves 9 are located below the liquid level. This is necessary so that the cavity 4b can be completely filled with sealing liquid after the door 2a has been closed.
  • the sealing liquid is drained again, which, for. B. can be done in that the inflow of sealing liquid is shut off and all sealing liquid can flow through the valves 9 into the tub 10, which is then removed by lowering or pivoting about a horizontal axis so far that the door 2a can be opened.
  • This solution has the advantage that impurities, sealing liquid from a leak or condensates emerging from the reactor chamber 1 can be removed without difficulty.
  • the incrustations which frequently occur in this area and which would particularly stress the outer door seal 4a, 4b, 4c would be eliminated.
  • FIG. 4 shows a section in the plane 111/111 through FIG. 3.
  • a special door frame 12 is arranged in the region of the door opening 1b of the wall 2b of the reactor space 1.
  • the upper area of this door frame 12 forms a horizontal weir 12a for a water reservoir (sealing liquid reservoir), from which the sealing liquid can continuously flow over the weir 12a into the horizontal channel 11 and from there into the vertical cavities 4b.
  • the lower part of the frame 12 is a vertical leg 12b which dips into the tub 10 approximately as far as the two vertical, tubular cavities 4b which are filled with sealing liquid.
  • the sealing liquid can be circulated as long as the contamination does not become too large.
  • Fig. 5 shows an enlarged section of a lateral sealing area in section.
  • An elastic wall 13 replaces the function that the door 2a has in the other illustrations, namely to form the door-side boundary of the two tubular cavities 6 and 4b.
  • the inner door seal 3 can be designed in the form of an adjustable, cutting-like blow bar, as you can z. B. at coke oven doors.
  • the invention can be used particularly effectively if the first tubular cavity 6 is flushed with an inert gas, which takes on an additional sealing function against any leaks in the inner door seal 3, provided that the inert gas pressure is greater than the pressure developing in the reaction chamber 1.
  • inert gas flushing or filling This problem arises particularly in the case of coke oven doors and it has been found that especially the vapor of the sealing liquids normally used, such as e.g. B. water, is suitable to act as an inert gas.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Coke Industry (AREA)

Description

Die Erfindung betrifft eine gasdichte Tür für einen Reaktorraum gemäß Oberbegriff des Anspruches 1.The invention relates to a gas-tight door for a reactor space according to the preamble of claim 1.

Derartige gasdichte Türen für Reaktorräume werden vor allem dann benutzt, wenn die darin ablaufende chemische Reaktion bei relativ hohen Temperaturen durchgeführt wird und dabei gebildete Gase durch eine einfache Dichtung nicht hinreichend zuverlässig zurückgehalten werden können, diese also durch unerwünschten Austritt aus der Reaktorraumtür eine Umweltbelastung darstellen.Such gas-tight doors for reactor rooms are used above all when the chemical reaction taking place therein is carried out at relatively high temperatures and the gases formed cannot be held back with sufficient reliability by a simple seal, i.e. they represent an environmental burden due to undesired escape from the reactor room door.

Ein bevorzugtes Anwendungsgebiet solcher gasdichter Türen für Reaktorräume sind Koksofenkammern, insbesondere solche mit vertikalen Kammertüren.A preferred field of application of such gas-tight doors for reactor rooms is coke oven chambers, in particular those with vertical chamber doors.

Bei bisher bekannten Reaktorräumen konnte zwar durch die Verwendung zweifacher Türdichtungen die Gasdichtigkeit der Türen schon relativ zuverlässig erreicht werden. Diese Dichtungen hatten jedoch den Nachteil, daß die üblichen Dichtungsmaterialien den auftretenden Temperaturen nur relativ kurze Zeit standhielten.In previously known reactor rooms, the gas tightness of the doors could already be achieved relatively reliably by using double door seals. However, these seals had the disadvantage that the usual sealing materials only withstood the temperatures occurring for a relatively short time.

Aus der DE-B-1 066 537 ist es bekannt, eine Tür für Koksöfen mit einer folgendermaßen aufgebauten Dichtung zu versehen:

  • a) Zwei im wesentlichen parallel verlaufende Dichtschneiden bilden im Verschlußzustand zusammen mit dem Türrahmen und der diesen überlappenden Tür einen rohrförmigen Hohlraum,
  • b) eine Dichtflüssigkeit füllt den rohrförmigen Hohlraum aus und
  • c) es ist eine Zu- und Ableitung für die Dichtflüssigkeit für den rohrförmigen Hohlraum vorgesehen.
From DE-B-1 066 537 it is known to provide a door for coke ovens with a seal constructed as follows:
  • a) two essentially parallel sealing edges form a tubular cavity in the closed state together with the door frame and the door overlapping them,
  • b) a sealing liquid fills the tubular cavity and
  • c) an inlet and outlet for the sealing liquid for the tubular cavity is provided.

Bei der bekannten Dichtung können sich an ihr Teerkondensate aus dem Koksofen bilden und zu Verkrustungen führen, so daß im Laufe der Zeit Undichtigkeiten unausweichlich sind. Außerdem kann die bekannte Flüssigkeitsdichtung aufgrund ihrer starken Kühlwirkungen im Bereich des Türrahmens zu thermischen Spannungen und Spannungsrissen führen sowie ebenso zu Verwerfungen der Dichtung, die diese Dichtung unwirksam machen.In the known seal, tar condensates can form on it from the coke oven and lead to incrustations, so that leaks are inevitable over time. In addition, due to its strong cooling effects in the area of the door frame, the known liquid seal can lead to thermal tensions and stress cracks as well as to warpage of the seal, which render this seal ineffective.

Aufgabe der Erfindung ist es, eine gasdichte Tür eines Reaktorraumes gemäß Oberbegriff des Hauptanspruches zu schaffen, dessen in bezug auf die Türöffnung außen liegende Dichtung verschleißfest gegenüber Temperatureinflüssen ist und das Eindringen von Dichtflüssigkeit in den Reaktorraum unterbindet. Weiterhin soll erreicht werden, daß die Gasdichtigkeit gegenüber bekannten Lösungen verbessert wird und die Dichtung wartungsfreundlich ist. Schließlich soll erreicht werden, daß die Dichtung auch bei auftretendem Wärmeverzug der Bauteile bestmöglich funktionstüchtig bleibt.The object of the invention is to provide a gas-tight door of a reactor space according to the preamble of the main claim, the outer seal with respect to the door opening is wear-resistant to temperature influences and prevents the penetration of sealing liquid into the reactor space. Furthermore, it should be achieved that the gas tightness compared to known solutions is improved and the seal is easy to maintain. Finally, the aim is to ensure that the seal remains as functional as possible even when the components warp.

Die erfindungsgemäße Aufgabe wird durch die Merkmalskombination des Anspruches 1 gelöst.The object of the invention is achieved by the combination of features of claim 1.

Bei gasdichten Türen eines Reaktorraumes, die in etwa vertikal stehen, stellen die Lösungen gemäß Anspruch 2 und 3 eine Verbesserung und Vereinfachung des grundlegenden Erfindungsgedankens dar. Die beiden letztgenannten Lösungen können auch in Kombination Anwendung finden.In the case of gas-tight doors of a reactor space which are approximately vertical, the solutions according to claims 2 and 3 represent an improvement and simplification of the basic concept of the invention. The latter two solutions can also be used in combination.

Soweit Wärmeverzug im Bereich der Tür des Reaktorraumes, wie er z. B. bei Koksofentüren eintreten kann, das feste Anliegen der Dichtung zwischen Tür und Türrahmen verhindert, ist die in bezug auf die Türöffnung außen liegende Dichtung elastisch befestigt und sind Anpreßmittel für diese Dichtung, tür- oder rahmenseitig, angeordnet.As far as heat distortion in the area of the door of the reactor space, as z. B. can occur in coke oven doors, which prevents the seal from firmly fitting between the door and the door frame, the outer seal in relation to the door opening is elastically fastened and pressing means for this seal, on the door or frame side, are arranged.

In Fällen, in denen sich in dem ersten rohrförmigen Hohlraum, also zwischen den beiden Dichtungen, ein explosives Gemisch bilden kann, weil etwa die in bezug auf die Türöffnung innen liegende Dichtung nicht völlig dicht schließt, ist der erste rohrförmige Hohlraum mit Inertgas ausgefüllt und mit einer Zu- und einer Ableitung für das Inertgas versehen. Hierzu ist bevorzugt der Dampf der Dichtflüssigkeit das Inertgas.In cases in which an explosive mixture can form in the first tubular cavity, i.e. between the two seals, for example because the seal inside the door opening does not close completely tightly, the first tubular cavity is filled with inert gas and with an inlet and an outlet for the inert gas. For this purpose, the vapor of the sealing liquid is preferably the inert gas.

Funktionsweise, besondere Gestaltung und weitere Vorteile der Erfindung werden anhand der nachfolgenden Beschreibung zu den Zeichnungen näher erläutert. Dabei ist der Gegenstand der Erfindung nicht auf die speziellen Ausführungsbeispiele beschränkt, sondern im Rahmen der weitestgehenden Auslegung der Ansprüche zu verstehen.Operation, special design and further advantages of the invention are explained in more detail with reference to the following description of the drawings. The subject matter of the invention is not limited to the specific exemplary embodiments, but should be understood within the framework of the broadest interpretation of the claims.

Fig. 1 zeigt einen Vertikalschnitt einer gasdichten Tür eines Reaktorraumes. Diese Darstellung ist, da sie die in den noch zu beschreibenden Fig. 2, 3 und 4 dargestellte erfindungswesentliche Wanne 8 bzw. 10 nicht enthält, rein schematisch zu verstehen. Dargestellt sind ein Reaktorraum 1 mit einem Türrahmen 2b und zugehöriger Tür 2a. Eine innere Türdichtung 3 sowie Dichtschneiden 4a und 4c können sowohl an der Tür 2a als auch am Türrahmen 2b befestigt sein. Die Türdichtung 3 und die Dichtschneiden 4a und 4c bilden rohrförmige Hohlräume 4b und 6, so daß ein inneres gasgefülltes Dichtsystem 3, 6, 4a und ein äußeres, mit Dichtflüssigkeit gefülltes Dichtsystem 4a, 4b, 4c entsteht. Vor dem Öffnen und nach dem Schließen der Tür 2a muß die Dichtflüssigkeit abgelassen bzw. wieder eingefüllt werden. Dies geschieht durch Zu- und Abläufe 5a und 5b.Fig. 1 shows a vertical section of a gas-tight door of a reactor room. This representation is to be understood purely schematically, since it does not contain the trough 8 or 10, which is essential to the invention, as shown in FIGS. 2, 3 and 4 to be described. A reactor room 1 is shown with a door frame 2b and associated door 2a. An inner door seal 3 and sealing blades 4a and 4c can be fastened to both the door 2a and the door frame 2b. The door seal 3 and the sealing blades 4a and 4c form tubular cavities 4b and 6, so that an inner gas-filled sealing system 3, 6, 4a and an outer sealing system 4a, 4b, 4c filled with sealing liquid are produced. Before opening and closing door 2a, the sealing liquid must be drained or refilled. This is done through inlets and outlets 5a and 5b.

Wie Fig. 2 zeigt, ist es auch möglich, an der Auslaufseite des rohrförmigen Hohlraumes 4b der in bezug auf die Türöffnung außen liegenden, flüssigkeitsgefüllten Dichtung 4a, 4b, 4c Ventile 7 vorzusehen und diese im Verschlußzustand der Tür so einzustellen, daß die Dichtflüssigkeit, die über den Zulauf 5a laufend nachgeführt wird, mit einer bestimmten Geschwindigkeit durch den von ihr ausgefüllten Hohlraum 4b strömt. Dies hat den Vorteil, daß sich die Dichtflüssigkeit bei besonders hohen Temperaturen nicht zu stark aufheizt und im Falle von Leckagen, d. h. Austreten der Dichtflüssigkeit aus dem von ihr ausgefüllten Hohlraum 4b immer so viel Dichtflüssigkeit ergänzt werden kann, daß ihre Funktion ständig erhalten bleibt. Die Dichtflüssigkeit stellt somit Dichtmittel und Kühlung zugleich dar.As shown in FIG. 2, it is also possible to provide valves 7 on the outlet side of the tubular cavity 4b of the liquid-filled seal 4a, 4b, 4c, which is on the outside with respect to the door opening, and to adjust these in the closed state of the door so that the sealing liquid, which is continuously fed via the inlet 5a, flows through the cavity 4b filled by it at a certain speed. This has the advantage that the sealing liquid is exposed to particularly high temperatures not heated up too much and in the event of leakage, ie leakage of the sealing liquid from the cavity 4b filled by it, so much sealing liquid can always be added that its function is constantly maintained. The sealing liquid thus represents both sealant and cooling.

Etwa in den ersten rohrförmigen Hohlraum 6 eindringende Dichtflüssigkeit fließt an dessen unterem Ende zusammen mit der übrigen Dichtflüssigkeit in eine Auffangwanne 8, deren Flüssigkeitsspiegel die beiden Dichtsysteme nach außen hin abschließt.Sealing liquid penetrating into the first tubular cavity 6 flows at its lower end together with the remaining sealing liquid into a collecting trough 8, the liquid level of which seals the two sealing systems from the outside.

In Fig. 3 ist die äußere Türdichtung 4a, 4b, 4c in ihrem oberen Bereich als nach oben hin offene Rinne 11 ausgeführt. Dies ist eine vereinfachte Ausführungsform der entsprechenden Lösung in Fig. 2 unter Fortlassung der obersten Dichtschneide 4c. Diese Ausführungsform ist nur bei im wesentlichen senkrecht stehenden Türen 2a anwendbar, da die Dichtflüssigkeit sonst auslaufen würde. Die Rinne 11 hat den Vorteil, daß sie wie ein an sich bereits bekanntes Vorratsbecken benutzt werden kann, wobei der Füllstand durch ein Wehr oder ein Schwimmerventil auf konstanter Höhe gehalten wird. Ein Überfüllen der Rinne 11 kann z. B. durch ein allgemein bekanntes Überlaufsystem verhindert werden.In Fig. 3, the outer door seal 4a, 4b, 4c is designed in its upper region as a channel 11 open at the top. This is a simplified embodiment of the corresponding solution in FIG. 2, leaving out the uppermost sealing cutting edge 4c. This embodiment can only be used with doors 2a which are essentially vertical, since the sealing liquid would otherwise leak. The channel 11 has the advantage that it can be used like a storage basin which is known per se, the level being kept at a constant level by a weir or a float valve. An overfilling of the trough 11 can, for. B. can be prevented by a well-known overflow system.

Die mit Dichtflüssigkeit gefüllte Wanne 10 ist so weit gefüllt bzw. so hoch angehoben, daß der Flüssigkeitsspiegel den nach unten hin offenen ersten rohrförmigen Hohlraum 6 gegenüber der Atmosphäre abschließt. Die äußere Türdichtung 4a, 4b, 4c taucht mit ihren unteren Enden in die Dichtflüssigkeit der Wanne 10 so tief ein, daß sich die Regelventile 9 unterhalb des Flüssigkeitsspiegels befinden. Dies ist notwendig, damit nach dem Schließen der Tür 2a der Hohlraum 4b vollständig mit Dichtflüssigkeit gefüllt werden kann. Vor dem Öffnen der Tür 2a wird die Dichtflüssigkeit wieder abgelassen, was z. B. dadurch geschehen kann, daß der Zufluß an Dichtflüssigkeit abgesperrt wird und über die Ventile 9 alle Dichtflüssigkeit in die Wanne 10 abfließen kann, die anschließend durch Absenken oder Fortschwenken um eine horizontale Achse so weit entfernt wird, daß die Tür 2a geöffnet werden kann.The trough 10 filled with sealing liquid is filled or raised so high that the liquid level closes off the first tubular cavity 6, which is open towards the bottom, from the atmosphere. The lower ends of the outer door seal 4a, 4b, 4c are so deep in the sealing liquid of the tub 10 that the control valves 9 are located below the liquid level. This is necessary so that the cavity 4b can be completely filled with sealing liquid after the door 2a has been closed. Before opening the door 2a, the sealing liquid is drained again, which, for. B. can be done in that the inflow of sealing liquid is shut off and all sealing liquid can flow through the valves 9 into the tub 10, which is then removed by lowering or pivoting about a horizontal axis so far that the door 2a can be opened.

Diese Lösung hat den Vorteil, daß Verunreinigungen, Dichtflüssigkeit aus einer Leckage oder aus dem Reaktorraum 1 austretende Kondensate ohne Schwierigkeit abgeführt werden können. Bei Koksofentüren würden die in diesem Bereich häufig auftretenden Verkrustungen, die besonders die äußere Türdichtung 4a, 4b, 4c belasten würden, entfallen.This solution has the advantage that impurities, sealing liquid from a leak or condensates emerging from the reactor chamber 1 can be removed without difficulty. In the case of coke oven doors, the incrustations which frequently occur in this area and which would particularly stress the outer door seal 4a, 4b, 4c would be eliminated.

Fig. 4 zeigt einen Schnitt in der Ebene 111/111 durch Fig. 3. Hier ist ein besonderer Türrahmen 12 im Bereich der Türöffnung 1b der Wandung 2b des Reaktorraumes 1 angeordnet. Der obere Bereich dieses Türrahmens 12 bildet ein horizontales Wehr 12a für ein Wasserreservoir (Dichtflüssigkeitsreservoir), aus dem die Dichtflüssigkeit ständig über das Wehr 12a in die horizontale Rinne 11 und daraus in die vertikalen Hohlräume 4b überfließen kann. Der untere Teil des Rahmens 12 ist ein vertikaler Schenkel 12b, der in etwa so weit in die Wanne 10 eintaucht, wie die beiden vertikalen, rohrförmigen Hohlräume 4b, die mit Dichtflüssigkeit ausgefüllt sind.FIG. 4 shows a section in the plane 111/111 through FIG. 3. Here, a special door frame 12 is arranged in the region of the door opening 1b of the wall 2b of the reactor space 1. The upper area of this door frame 12 forms a horizontal weir 12a for a water reservoir (sealing liquid reservoir), from which the sealing liquid can continuously flow over the weir 12a into the horizontal channel 11 and from there into the vertical cavities 4b. The lower part of the frame 12 is a vertical leg 12b which dips into the tub 10 approximately as far as the two vertical, tubular cavities 4b which are filled with sealing liquid.

Diese Lösung bietet den Vorteil, daß ein sich aufgrund einer Betriebsstörung bildender Gasüberdruck im rohrförmigen Hohlraum 6 (Fig. 3) oder Überdruck der Dichtflüssigkeit im rohrförmigen Hohlraum 4b nur so hoch werden kann, wie es der Eintauchtiefe dieser nach unten hin offenen Hohlräume 6, 4b in die Wanne 10 entspricht.This solution has the advantage that a gas overpressure in the tubular cavity 6 (FIG. 3) or overpressure of the sealing liquid in the tubular cavity 4b, which forms due to a malfunction, can only be as high as the immersion depth of these cavities 6, 4b, which are open towards the bottom corresponds to the tub 10.

Die Dichtflüssigkeit kann, wie auch in den vorhergehenden Fällen, im Kreislauf geführt werden, so lange die Verschmutzungen nicht zu groß werden.As in the previous cases, the sealing liquid can be circulated as long as the contamination does not become too large.

Fig. 5 zeigt einen vergrößerten Ausschnitt eines seitlichen Dichtungsbereiches im Schnitt. Eine elastische Wandung 13 ersetzt hier die Funktion, die in den anderen Darstellungen die Tür 2a hat, nämlich die türseitige Begrenzung der beiden rohrförmigen Hohlräume 6 und 4b zu bilden. Durch Anpreßmittel 14 in Verbindung mit der elastischen Wandung 13 wird erreicht, daß die äußere Türdichtung 4a, 4b, 4c auch dann noch fest auf ihrer Auflagefläche 15b anliegt, wenn im Bereich des Türrahmens 2b thermische Verwerfungen auftreten. Die innere Türdichtung 3 kann in Form einer nachstellbaren, schneidenförmigen Schlagleiste ausgeführt sein, wie man sie z. B. bei Koksofentüren antrifft.Fig. 5 shows an enlarged section of a lateral sealing area in section. An elastic wall 13 replaces the function that the door 2a has in the other illustrations, namely to form the door-side boundary of the two tubular cavities 6 and 4b. By pressing means 14 in connection with the elastic wall 13 it is achieved that the outer door seal 4a, 4b, 4c is still firmly on its support surface 15b when thermal distortions occur in the area of the door frame 2b. The inner door seal 3 can be designed in the form of an adjustable, cutting-like blow bar, as you can z. B. at coke oven doors.

Die Erfindung kann besonders wirkungsvoll eingesetzt werden, wenn der erste rohrförmige Hohlraum 6 mit einem Inertgas durchspült wird, welches gegenüber eventuellen Undichtigkeiten der inneren Türdichtung 3 eine zusätzliche Dichtfunktion übernimmt, sofern der Inertgasdruck größer ist als der sich im Reaktionsraum 1 ausbildende Druck. Darüber hinaus werden durch eine Inertgasspülung bzw. -füllung die Bildung von Explosivgasgemischen oder Kondensationsniederschlägen vermieden. Dieses Problem taucht besonders bei Koksofentüren auf und es wurde gefunden, daß besonders der Dampf der üblicherweise verwendeten Dichtflüssigkeiten, wie z. B. Wasser, dazu geeignet ist, als Inertgas zu fungieren. Eine solche Lösung hat den besonderen Vorteil, daß eventuelle Leckagen der Dichtflüssigkeit in den ersten rohrförmigen Hohlraum 6 hinein nicht zu Schäden führt, sondern im Gegenteil, daß diese an heißen Stellen verdampfende Flüssigkeit zu einer Erhöhung und Auffrischung des Inertgasgehaltes führt. Selbstverständlich wird man für den Normalfall eine gezielte Eindüsung mit bereits aufgeheizter Dichtflüssigkeit vornehmen, um sie innerhalb des ersten rohrförmigen Hohlraumes 6 verdampfen zu lassen.The invention can be used particularly effectively if the first tubular cavity 6 is flushed with an inert gas, which takes on an additional sealing function against any leaks in the inner door seal 3, provided that the inert gas pressure is greater than the pressure developing in the reaction chamber 1. In addition, the formation of explosive gas mixtures or condensation deposits is avoided by inert gas flushing or filling. This problem arises particularly in the case of coke oven doors and it has been found that especially the vapor of the sealing liquids normally used, such as e.g. B. water, is suitable to act as an inert gas. Such a solution has the particular advantage that any leakage of the sealing liquid into the first tubular cavity 6 does not lead to damage, but on the contrary that this liquid evaporating in hot places leads to an increase and a refreshment of the inert gas content. Of course, in the normal case, a targeted injection with sealing liquid which has already been heated up will be carried out in order to allow it to evaporate within the first tubular cavity 6.

Claims (3)

1. Gas-tight door for a vessel for chemical reactions at high temperatures with the formation of gases, in which two seals (3, 4a) extending around the door opening together with the door frame (2b) and the door (2a) which overlaps the latter form, in the closed state, a first tubular hollow chamber (6), characterised by the combination of the following features:
a) the first tubular hollow chamber (6) is filled with gas and forms a first inner sealing system (3, 6, 4a);
b) two sealing strips (4a, 4c) extending in a substantially parallel manner form, in the closed state, together with the door frame (2b) and the door (2a) which overlaps the latter a second tubular hollow chamber (4b) which is filled with a sealing fluid, is provided with a supply line (5a, 11) and an outlet line (5b) with a throttle valve (7, 9) for the sealing fluid and forms a second outer sealing system (4a, 4b, 4c);
c) a tank (8, 10) filled with sealing fluid closes, via the fluid level therein, the downwardly open first tubular hollow chamber (6) and the second hollow chamber (4b) in an external manner.
2. Gas-tight doer for a vessel for chemical reactions as claimed in claim 1, characterised in that
a) the outer sealing system (4a, 4b, 4c) comprises, in the upper door area, the strip (4a) which is on the side of the door opening, which strip forms together with the door (2a) and the door frame (2b), in the closed state, an upwardly open channel (11),
b) the channel (11) is filled with the sealing fluid, which communicates freely, at the ends of the channel (11), with the vertically extending lateral hollow chambers (4b) via a respective opening.
3. Gas-tight door for a vessel for chemical reactions as claimed in claims 1, characterised in that the vertically extending lateral hollow chambers (4b) filled with the sealing fluid communicate below the fluid level with the tank (8, 10) and are provided with throttle valves (9, 7) which are disposed below the fluid level.
EP81102364A 1980-04-09 1981-03-28 Gastight door for a vessel for chemical reactions Expired EP0037541B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3013650A DE3013650C2 (en) 1980-04-09 1980-04-09 Reactor room for chemical reactions with gastight, vertical door
DE3013650 1980-04-09

Publications (2)

Publication Number Publication Date
EP0037541A1 EP0037541A1 (en) 1981-10-14
EP0037541B1 true EP0037541B1 (en) 1985-05-29

Family

ID=6099587

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81102364A Expired EP0037541B1 (en) 1980-04-09 1981-03-28 Gastight door for a vessel for chemical reactions

Country Status (6)

Country Link
US (1) US4412684A (en)
EP (1) EP0037541B1 (en)
JP (1) JPS56155638A (en)
AU (1) AU6903681A (en)
CA (1) CA1186495A (en)
DE (1) DE3013650C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5783046A (en) * 1994-11-28 1998-07-21 Gentech, Inc. Process and apparatus for the destructive distillation of rubber
EP2329169A1 (en) * 2008-06-21 2011-06-08 Federal-Mogul Sealing Systems GmbH Flat seal
CN113090759B (en) * 2021-05-17 2022-04-29 威海化工机械有限公司 Magnetic coupling transmission sealing device

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE306953C (en) *
DE1066537B (en) * 1959-10-08 Cannes Alpes-Maritimes Pierre Eugene Henri Forsans (Frankreich) Seal for coke oven doors with a U-shaped sealing profile that presses against a sealing surface of the oven wall and is resiliently fastened to the door frame and a blocking zone created by means of a blocking medium
US687051A (en) * 1897-01-20 1901-11-19 Niven Mcconnell Door-frame for furnaces.
US1918860A (en) * 1931-03-16 1933-07-18 St Louis & O Fallon Coal Compa Closure seal for vertical coking retorts
FR795907A (en) * 1934-10-04 1936-03-25 Gas Chambers & Coke Ovens Ltd Door and door frame for furnaces, retorts and other applications
DE906687C (en) * 1950-04-18 1954-03-18 Still Fa Carl Coke oven door with metallic self-seal
DE828098C (en) * 1950-05-26 1952-01-14 Still Fa Carl Double self-sealing for coke oven doors
DE1727416U (en) * 1952-03-01 1956-08-02 Stadt Duesseldorf Stadtwerke V PRESSURE-TIGHT PIPE CONNECTION.
US2878170A (en) * 1955-10-24 1959-03-17 Forsans Pierre Eugene Henri Sealing means for the hydraulic joint of a coke oven door and for like closures
DE1037408B (en) * 1957-01-08 1958-08-28 Dr Georg Geisselbrecht Method for producing a gas-tight seal in coking chamber ovens
BE739772A (en) * 1968-10-04 1970-03-16
DE2532097C3 (en) * 1975-07-18 1978-08-03 G. Wolff Jun. Kg, 4630 Bochum Furnace chamber closure for a horizontal chamber coking furnace
DE2548714A1 (en) * 1975-10-31 1977-05-12 Still Fa Carl Coke oven door seal - comprising steel section cavity around door filled with injected hardening sealing compound
US4284479A (en) * 1978-12-01 1981-08-18 Didier Engineering Gmbh Sealing arrangement for the oven chamber door on a coking oven
DE2852013C2 (en) * 1978-12-01 1981-11-26 Didier Engineering Gmbh, 4300 Essen Sealing arrangement for the furnace chamber door on a coking furnace

Also Published As

Publication number Publication date
US4412684A (en) 1983-11-01
DE3013650A1 (en) 1981-10-15
AU6903681A (en) 1981-10-15
EP0037541A1 (en) 1981-10-14
CA1186495A (en) 1985-05-07
DE3013650C2 (en) 1984-07-19
JPS56155638A (en) 1981-12-01

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