EP1707346B1 - Isostatic press with a split pressure container - Google Patents

Isostatic press with a split pressure container Download PDF

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Publication number
EP1707346B1
EP1707346B1 EP20060006779 EP06006779A EP1707346B1 EP 1707346 B1 EP1707346 B1 EP 1707346B1 EP 20060006779 EP20060006779 EP 20060006779 EP 06006779 A EP06006779 A EP 06006779A EP 1707346 B1 EP1707346 B1 EP 1707346B1
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EP
European Patent Office
Prior art keywords
pressure
pressure container
segments
pressure vessel
isostatic press
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EP20060006779
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German (de)
French (fr)
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EP1707346A3 (en
EP1707346A2 (en
Inventor
Matthias Graf
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Cremer Thermoprozessanlagen GmbH
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Cremer Thermoprozessanlagen GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/001—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a flexible element, e.g. diaphragm, urged by fluid pressure; Isostatic presses
    • B30B11/002—Isostatic press chambers; Press stands therefor

Definitions

  • the invention relates to an isostatic press with a multipart pressure vessel according to the preamble of claim 1.
  • cylindrical containers known as receptacles
  • receptacles For the construction of cold, hot and hot isostatic presses, cylindrical containers, known as receptacles, are used to hold the batch. During operation, they absorb the extremely high pressure forces due to the operating pressure.
  • the pressure vessels are produced today in various designs. The use of massive pressure vessels from a single-layer pressure vessel is known. At very high operating pressures and multi-layer pressure vessels are produced by shrinking into one another of several thinner individual containers. Due to the shrinking, the inner layer of the container is pressurized, whereby a higher allowable operating pressure can be applied. The still sufficient security against the flow limit of the material is calculated accordingly. Also known is the production of pressure vessels after the winding technique.
  • Inner liner inner pressure vessel wound a variety of wires, which are applied with targeted bias. This also achieves a compression bias of the inner liner with the advantages described above. By increasing the bias of the wires from inside to outside, this can achieve optimal material utilization.
  • document GB 1341716 A describes an isostatic press according to the preamble of claims 1 to 3.
  • the invention is an object of the invention to provide an isostatic press with a multipart enlarged pressure vessel and at the same time a way to compensate for the axial pressure components in the joints of Druck proceedingersegmenter or between any inner sleeve segments
  • the solution consists in a Isostatpresse according to claim 1, 2 or 3.
  • the two outer pressure vessel segments on counter-pressure surfaces and on the joints sealing rings are arranged with seals arranged therein.
  • the invention provides a type of multi-part pressure vessels for use in isostatic presses, with which the maximum size of the isostatic presses can be further increased without elaborate pressure vessel designs or welds.
  • the pressure vessel are made in several parts in the axial direction, in a manner that allows assembly of the individual pieces at the site of assembly.
  • the structure of the pressure vessel consists of a plurality of pressure vessel segments, which are assembled axially on their end faces.
  • the pressure vessel segments can in turn be designed as single-layer or multi-layer segments.
  • the pressure vessel segments are sealed to each other at the joints, so that the composite pressure vessel, can reliably absorb the operating pressure.
  • a positive support (similar to the sewer pipes) of the pressure vessel segments nothing contrary to, for example, to prevent slippage of the pressure vessel segments with each other.
  • the sealing itself can be done via elastomer seals.
  • the pressure vessel according to the invention provides for the formation of counter-pressure surfaces, which are formed to be the same size or larger than the pressure-applied end faces between the pressure chamber and the seals.
  • a stable in itself, with respect to the axial forces compensated pressure vessel can be built in dimensions corresponding to a cylindrical inner diameter of about 5 m and a length of 10 m or more. This would allow the loading volume of the pressure vessel over the previously known prior art multiplying and corresponding savings for the industry in the production of larger batches of small parts or even the production of oversized workpieces.
  • a multi-part inner liner is introduced without bias in the pressure vessel, which serves to receive the primary sealing elements.
  • the sealing to the atmosphere takes place here between the inner sleeve elements and the pressure vessel segments and the pressure forces during operation of the pressure vessel are passed by surface pressure to the pressure bearing pressure vessel segments without axial component by the compensation of the counter-pressure surfaces on the axially outer pressure vessel segments.
  • a cooled multi-part inner sleeve can be easily realized for the construction of hot isostatic presses, in which the inner sleeve elements Contain cooling lines or have external grooves that can form a cooling line system in conjunction with the pressure vessel segments, which can serve for rapid cooling of the pressure vessel.
  • the seal between the pressure vessel segments is carried out with a sealing ring, in which the sealing elements are integrated.
  • This sealing ring is held by means of retaining elements on the joints of the pressure vessel segments.
  • FIG. 1 an isostatic press with a press frame 12 and the associated pressure vessel 16 is shown.
  • the pressure vessel 16 consists of stacked pressure vessel segments 1 with seals 4 and two associated closure lids 2, which surround the pressure chamber 8 of the isostatic press.
  • tie rods 9 are mounted with clamping plates 10 on the outside of the pressure vessel. In the illustrated operating state, the forces of the operating pressure are introduced via a pressure plate 11 into the press frame 12.
  • FIG. 2 In a section shows FIG. 2 detailed the transition from the cap 2 to an outer pressure vessel segment 1 with a seal 4 and the design of another pressure vessel segment 1
  • the occurring at the counter-pressure surfaces 15 axial forces 7 on the outer pressure vessel segment 1 are the subject of FIG. 3 ,
  • the counter-pressure surface 15 is axially located on the side of the first pressure vessel segment 1 which is aligned with the closure lid 2 and includes not only the in The drawing shown in the drawing but any surfaces that can build an axial force component lying in the area between the seals 4 to the beginning of the pressure chamber 8. Since in the isostatic operation of the pressure vessel 16 to the pressure chamber 8 adjacent surfaces everywhere the same pressure prevails, the counter-pressure surfaces 15 on axial forces 7, the vectors are directed in the direction of the joints 13 between the pressure vessel segments 1.
  • FIG. 4 shows in a pressure vessel 16 imported inner sleeve segments 3 with seals 4.
  • These inner sleeve segments 3 have by their design, the necessary counter-pressure surfaces 15 and lead to an axial whokompens Being design.
  • the end faces 18 of the inner sleeve segments 3 are made flat here, but can also be positively designed as described above otherwise, which has no effect on the axial compensation of the forces.
  • the inner sleeve segments 3 provided with grooves 5 on the side facing away from the pressure chamber 8 side which can be supplied via an inlet 6.
  • empering also includes the use of cooling via appropriately introduced cooling fluids during operation or phases of operation or heating of the pressure vessel when used in a hot isostatic press (WIP).
  • WIP hot isostatic press
  • FIG. 5 the seal between the pressure vessel segments 1 with a sealing ring 19, in which the sealing elements 4 are integrated.
  • This sealing ring 19 is held by means of holding elements 20 on the parting lines 13 of the pressure vessel segments 1.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Description

Die Erfindung betrifft eine Isostatpresse mit einem mehrteiligen Druckbehälter nach dem Oberbegriff des Patentanspruches 1.The invention relates to an isostatic press with a multipart pressure vessel according to the preamble of claim 1.

Für den Bau von Kalt-, Warm- und Heiß-Isostatpressen werden zur Aufnahme der Charge, zylindrische Druckbehälter, so genannte Rezipienten verwendet, die im Betrieb die extrem hohen Druckkräfte durch den Betriebsdruck aufnehmen. Die Druckbehälter werden heute in verschiedenen Bauarten hergestellt. Bekannt ist die Verwendung von massiven Druckbehältern aus einem Ein-Lagen Druckgefäß. Bei sehr hohen Betriebsdrücken werden auch mehrlagige Druckbehälter durch ineinander schrumpfen von mehreren dünneren Einzelbehältern hergestellt. Durch das Einschrumpfen, wird die Innenlage des Behälters unter Druckvorspannung gebracht, wodurch ein höherer zulässiger Betriebdruck aufgebracht werden kann. Der hierbei noch ausreichender Sicherheit gegen die Fließgrenze des Materials wird dabei entsprechend eingerechnet. Weiter bekannt ist die Herstellung von Druckbehältern nach der Wickeltechnik. Hierbei wird auf eine dünnwandige Innenbüchse (innerer Druckbehälter) eine Vielzahl von Drähten aufgewickelt, die mit gezielter Vorspannung aufgebracht werden. Auch hierdurch erreicht man eine Druckvorspannung der Innenbüchse mit den oben beschriebenen Vorteilen. Durch zunehmende Vorspannung der Drähte von Innen nach Außen, lässt sich hierbei eine optimale Materialausnutzung erzielen.For the construction of cold, hot and hot isostatic presses, cylindrical containers, known as receptacles, are used to hold the batch. During operation, they absorb the extremely high pressure forces due to the operating pressure. The pressure vessels are produced today in various designs. The use of massive pressure vessels from a single-layer pressure vessel is known. At very high operating pressures and multi-layer pressure vessels are produced by shrinking into one another of several thinner individual containers. Due to the shrinking, the inner layer of the container is pressurized, whereby a higher allowable operating pressure can be applied. The still sufficient security against the flow limit of the material is calculated accordingly. Also known is the production of pressure vessels after the winding technique. This is on a thin-walled Inner liner (inner pressure vessel) wound a variety of wires, which are applied with targeted bias. This also achieves a compression bias of the inner liner with the advantages described above. By increasing the bias of the wires from inside to outside, this can achieve optimal material utilization.

Die Anwender von Isostatpressen verlangen zunehmend größere Druckbehälter, um den Marktanforderungen zur Herstellung großer Bauteile gerecht zu werden. Derzeit auf dem Markt befindliche Isostatpressen haben in der Regel einen zylindrischen Rezipienteninnenraum mit bis zu 2 m Durchmesser und 5 m Länge. Die aber derzeit vom Markt geforderten Baugrößen, können technisch mit den bekannten Herstellungsprozessen nicht mehr hergestellt werden. Bei allen oben genannten Bauarten, wird der ein- oder mehrlagige Druckbehälter, bzw. die Innenbüchse bei den gewickelten Druckbehältern schmiedetechnisch hergestellt. Auch dünnwandige Druckbehälter werden im Schmiedeprozess zunächst als massiver Zylinder geschmiedet und anschließend die Bohrung zerspanend oder durch einen Schmiededorn entnommen. Durch das maximal handhabbare Schmiedegewicht, Transportgewicht bzw. die Bauteilgröße bei der weiteren Fertigbearbeitung, sind technische Grenzen gesetzt. Hierdurch können auch mehrlagige und gewickelte Behälter nicht mehr größer hergestellt werden. Fertiggewichte von ca. 120 Tonnen sind heute die technisch realisierbare Obergrenze hinsichtlich der Fertigung und des notwendigen Transports. Noch größere Behälter sind allein aus Gründen der Transportmöglichkeiten, nicht mehr realisierbar.Users of isostatic presses are increasingly demanding larger pressure vessels to meet the market requirements for manufacturing large components. Currently available on the market isostatic presses usually have a cylindrical recipient interior with up to 2 m in diameter and 5 m in length. But currently required by the market sizes can not be produced technically with the known manufacturing processes. In all types mentioned above, the single or multi-layer pressure vessel, or the inner liner in the wound pressure vessels made by forging. Even thin-walled pressure vessels are initially forged in the forging process as a solid cylinder and then removed the hole by machining or by a forging mandrel. Due to the maximum workable forging weight, transport weight or the size of the component during further finishing, there are technical limits. As a result, even multi-layered and wound containers can not be made larger. Today, finished weights of approx. 120 tons are the technically feasible upper limit with regard to production and the necessary transport. Yet larger containers are no longer feasible solely for reasons of transportation.

Dokument GB 1341716 A beschreibt eine Isostatpresse nach dem Oberbegriff der Ansprüche 1 bis 3.document GB 1341716 A describes an isostatic press according to the preamble of claims 1 to 3.

Der Erfindung liegt nun die Aufgabe zugrunde eine Isostatpresse mit einem mehrteiligen vergrößerten Druckbehälter und gleichzeitig eine Möglichkeit zur Kompensierung der axialen Druckkomponenten in den Trennfugen der Druckbehältersegmenter bzw. zwischen etwaigen Innenbuchsensegmenten zu schaffenThe invention is an object of the invention to provide an isostatic press with a multipart enlarged pressure vessel and at the same time a way to compensate for the axial pressure components in the joints of Druckbehältersegmenter or between any inner sleeve segments

Die Lösung besteht in einer Isostatpresse gemäß Anspruch 1, 2 oder 3.The solution consists in a Isostatpresse according to claim 1, 2 or 3.

Eine weitere Möglichkeit zur Lösung der Aufgabe in Verbindung mit einer zusätzlichen Temperiermöglichkeit bietet sich dadurch, dass in dem Druckbehälter mehrere Innenbuchsensegmente ohne Vorspannung gegen die Druckbehältersegmente eingelegt sind, die axial außen liegenden Innenbuchsensegmente Gegendruckflächen aufweisen und die Innenbuchsensegmente Nuten und/oder Kanäle zur Fluidverteilung aufweisen.Another possibility for solving the problem in conjunction with an additional tempering option is that in the pressure vessel several inner sleeve segments are inserted without bias against the pressure vessel segments, the axially outer inner sleeve segments have counter-pressure surfaces and the inner sleeve segments grooves and / or channels for fluid distribution.

In einer dritten Möglichkeit zur Lösung der Aufgabe weisen die beiden außen liegenden Druckbehältersegmente Gegendruckflächen auf und über den Trennfugen sind Abdichtringe mit darin angeordneten Abdichtungen angeordnet.In a third way to solve the problem, the two outer pressure vessel segments on counter-pressure surfaces and on the joints sealing rings are arranged with seals arranged therein.

Die Erfindung stellt eine Bauart von mehrteiligen Druckbehältern für die Verwendung in Isostatpressen vor, mit der die maximale Baugröße der Isostatpressen weiter erhöht werden kann ohne aufwendige Druckbehälterkonstruktionen oder -Schweißungen durchzuführen. Hierzu werden die Druckbehälter in axialer Richtung mehrteilig ausgeführt, und zwar in einer Art, die ein Zusammensetzen der Einzelstücke am Ort der Montage ermöglicht. Der Aufbau des Druckbehälters besteht aus einer Mehrzahl an Druckbehältersegmenten, die axial auf ihre Stirnflächen zusammengestellt werden. Die Druckbehältersegmente können in sich wiederum als einlagige oder mehrlagige Segmente ausgeführt sein. Die Druckbehältersegmente werden an den Trennfugen zueinander abgedichtet, so dass der zusammengesetzte Druckbehälter, zuverlässig den Betriebsdruck aufnehmen kann. Zusätzlich steht natürlich einer formschlüssigen Unterstützung (ähnlich der von Kanalrohren) der Druckbehältersegmente nichts entgegen um zum Beispiel ein Verrutschen der Druckbehältersegmente untereinander zu verhindern. Die Abdichtung selbst kann über Elastomerdichtungen erfolgen. In jedem Fall entstehen hierbei stirnseitige, mit Druck beaufschlagte Flächen, die eine Axialkraft erzeugen, welche die Druckbehältersegmente auseinanderdrücken will. Um dies zu vermeiden, sieht der erfindungsgemäße Druckbehälter die Ausbildung von Gegendruckflächen vor, die gleich groß oder größer ausgebildet sind, als die mit Druck beaufschlagten Stirnflächen zwischen Druckraum und den Abdichtungen.The invention provides a type of multi-part pressure vessels for use in isostatic presses, with which the maximum size of the isostatic presses can be further increased without elaborate pressure vessel designs or welds. For this purpose, the pressure vessel are made in several parts in the axial direction, in a manner that allows assembly of the individual pieces at the site of assembly. The structure of the pressure vessel consists of a plurality of pressure vessel segments, which are assembled axially on their end faces. The pressure vessel segments can in turn be designed as single-layer or multi-layer segments. The pressure vessel segments are sealed to each other at the joints, so that the composite pressure vessel, can reliably absorb the operating pressure. In addition, of course, a positive support (similar to the sewer pipes) of the pressure vessel segments nothing contrary to, for example, to prevent slippage of the pressure vessel segments with each other. The sealing itself can be done via elastomer seals. In any case, in this case arise frontal, pressurized surfaces that generate an axial force, which the pressure vessel segments wants to push apart. In order to avoid this, the pressure vessel according to the invention provides for the formation of counter-pressure surfaces, which are formed to be the same size or larger than the pressure-applied end faces between the pressure chamber and the seals.

Hierdurch kann ein in sich stabiler, hinsichtlich der Axialkräfte kompensierter Druckbehälter in Dimensionen gebaut werden, die einen zylindrischen Innendurchmesser von etwa 5 m und einer Länge von 10 m oder mehr entsprechen. Damit würde sich das Ladevolumen des Druckbehälters gegenüber dem bisher bekannten Stand der Technik Vervielfachen und dementsprechende Einsparungen für die Industrie bei der Herstellung größerer Chargen von Kleinteilen oder auch die Herstellung von übergroßen Werkstücken ermöglichen.In this way, a stable in itself, with respect to the axial forces compensated pressure vessel can be built in dimensions corresponding to a cylindrical inner diameter of about 5 m and a length of 10 m or more. This would allow the loading volume of the pressure vessel over the previously known prior art multiplying and corresponding savings for the industry in the production of larger batches of small parts or even the production of oversized workpieces.

Im zweiten Ausführungsbeispiel wird eine mehrteilige Innenbüchse ohne Vorspannung in den Druckbehälter eingebracht, die zur Aufnahme der primären Dichtungselemente dient. Die Abdichtung zur Atmosphäre erfolgt hier zwischen den Innenbüchsenelementen und den Druckbehältersegmenten und die Druckkräfte bei Betrieb des Druckbehälters werden durch Flächenpressung an die den Druck tragenden Druckbehältersegmente ohne axiale Komponente durch die Kompensation über die Gegendruckflächen an den axial aussen angeordneten Druckbehältersegmenten weiter geleitet. Hierdurch lässt sich auch für den Bau von Heissisostatpressen, eine gekühlte mehrteilige Innenbüchse leicht realisieren, in dem die Innenbüchsenelemente Kühlleitungen enthalten oder außenliegende Nuten aufweisen, die in Verbindung mit den Druckbehältersegmenten ein Kühlleitungssystem bilden können, dass zur Schnellkühlung des Druckbehälters dienen kann.In the second embodiment, a multi-part inner liner is introduced without bias in the pressure vessel, which serves to receive the primary sealing elements. The sealing to the atmosphere takes place here between the inner sleeve elements and the pressure vessel segments and the pressure forces during operation of the pressure vessel are passed by surface pressure to the pressure bearing pressure vessel segments without axial component by the compensation of the counter-pressure surfaces on the axially outer pressure vessel segments. As a result, a cooled multi-part inner sleeve can be easily realized for the construction of hot isostatic presses, in which the inner sleeve elements Contain cooling lines or have external grooves that can form a cooling line system in conjunction with the pressure vessel segments, which can serve for rapid cooling of the pressure vessel.

In einem weiteren Ausführungsbeispiel erfolgt die Abdichtung zwischen den Druckbehältersegmenten mit einem Abdichtring, in den die Dichtelemente integriert sind. Dieser Abdichtring wird mittels Halteelementen über den Trennfugen der Druckbehältersegmente gehalten. Dies bietet den Vorteil, dass zum Wechsel der Abdichtungen, nur die Trennringe aus dem Druckraum entnommen werden müssen und die schweren drucktragenden Druckbehältersegmente in ihrer zusammengesetzten Form stehen bleiben können.In a further embodiment, the seal between the pressure vessel segments is carried out with a sealing ring, in which the sealing elements are integrated. This sealing ring is held by means of retaining elements on the joints of the pressure vessel segments. This offers the advantage that for changing the seals, only the separating rings must be removed from the pressure chamber and the heavy pressure-bearing pressure vessel segments can remain in their assembled form.

Weitere vorteilhafte Maßnahmen und Ausgestaltungen des Gegenstandes der Erfindung gehen aus den Unteransprüchen und der folgenden Beschreibung der Zeichnung hervor.Further advantageous measures and embodiments of the subject matter of the invention will become apparent from the dependent claims and the following description of the drawing.

Es zeigen:

Figur 1
Schnitt einer isostatischen Presse mit einem Druckbehälter,
Figur 2
vergrößerter Ausschnitt einer axialen Endseite des Druckbehälters gemäß Figur 1,
Figur 3
vergrößerter Ausschnitt gemäß Figur 2 mit Darstellung der axial angreifenden Kräfte an den Gegendruckflächen eines äußeren Druckbehältersegmentes,
Figur 4
Teilschnitt eines Druckbehälters mit Innenbüchsensegmenten zur Abdichtung und Fluideinspeisung und -verteilung gemäß einem Ausführungsbeispieles und
Figur 5
Teilschnitt eines Druckbehälters mit einem Innendichtring.
Show it:
FIG. 1
Section of an isostatic press with a pressure vessel,
FIG. 2
enlarged section of an axial end side of the pressure vessel according to FIG. 1 .
FIG. 3
enlarged section according to FIG. 2 showing the forces acting axially on the counterpressure surfaces of an outer pressure vessel segment,
FIG. 4
Partial section of a pressure vessel with inner liner segments for sealing and fluid supply and distribution according to an embodiment and
FIG. 5
Partial section of a pressure vessel with an inner sealing ring.

In Figur 1 ist eine Isostatpresse mit einem Pressenrahmen 12 und dem zugehörigen Druckbehälter 16 dargestellt. Der Druckbehälter 16 besteht dabei aus aufeinander gestapelten Druckbehältersegmenten 1 mit Abdichtungen 4 und zwei zugehörigen Verschlussdeckeln 2, die den Druckraum 8 der Isostatpresse umschließen. Zur Fixierung der Druckbehältersegmente 1 sind außenseitig des Druckbehälters 16 Zuganker 9 mit Spannplatten 10 angebracht. Im dargestellten Betriebszustand werden die Kräfte des Betriebsdruckes über eine Druckplatte 11 in den Pressenrahmen 12 eingeleitet.In FIG. 1 an isostatic press with a press frame 12 and the associated pressure vessel 16 is shown. The pressure vessel 16 consists of stacked pressure vessel segments 1 with seals 4 and two associated closure lids 2, which surround the pressure chamber 8 of the isostatic press. To fix the pressure vessel segments 1 16 tie rods 9 are mounted with clamping plates 10 on the outside of the pressure vessel. In the illustrated operating state, the forces of the operating pressure are introduced via a pressure plate 11 into the press frame 12.

In einem Ausschnitt zeigt Figur 2 detaillierter den Übergang vom Verschlussdeckel 2 auf ein äußeres Druckbehältersegment 1 mit einer Abdichtung 4 und die Ausgestaltung eines weiteren Druckbehältersegmentes 1 Die an den Gegendruckflächen 15 auftretenden axialen Kräfte 7 am äußeren Druckbehältersegment 1 sind Gegenstand der Figur 3. Die Gegendruckfläche 15 findet sich axial gesehen auf der Seite des ersten Druckbehältersegmentes 1 das zum Verschlussdeckel 2 ausgerichtet ist und beinhaltet nicht nur die in der Zeichnung dargestellte Form sondern jegliche Flächen die eine axiale Kraftkomponente aufbauen können die im Bereich zwischen den Abdichtungen 4 bis zu Beginn des Druckraumes 8 liegen. Da im isostatischen Betrieb des Druckbehälters 16 an den zum Druckraum 8 angrenzenden Flächen überall der gleiche Druck herrscht, weisen die Gegendruckflächen 15 axiale Kräfte 7 auf, deren Vektoren in Richtung der Trennfugen 13 zwischen den Druckbehältersegmenten 1 gerichtet sind. Bei einer symmetrischen Anordnung an den beiden axialen Außenseiten des Druckbehälters 16 führt das zu einem Kräfteverhältnis, das die Druckbehältersegmente 1 während des Betriebes in axialer Richtung zusammendrückt. Dabei werden die Trennkräfte in den Trennfugen 13 überkompensiert, wenn die Gegendruckflächen 15 größer sind als die Flächen die sich vom Druckraum 8 bis zu den Abdichtungen 4 an den Stirnflächen 14 der Druckbehältersegmente 1 befinden.In a section shows FIG. 2 detailed the transition from the cap 2 to an outer pressure vessel segment 1 with a seal 4 and the design of another pressure vessel segment 1 The occurring at the counter-pressure surfaces 15 axial forces 7 on the outer pressure vessel segment 1 are the subject of FIG. 3 , The counter-pressure surface 15 is axially located on the side of the first pressure vessel segment 1 which is aligned with the closure lid 2 and includes not only the in The drawing shown in the drawing but any surfaces that can build an axial force component lying in the area between the seals 4 to the beginning of the pressure chamber 8. Since in the isostatic operation of the pressure vessel 16 to the pressure chamber 8 adjacent surfaces everywhere the same pressure prevails, the counter-pressure surfaces 15 on axial forces 7, the vectors are directed in the direction of the joints 13 between the pressure vessel segments 1. In a symmetrical arrangement on the two axial outer sides of the pressure vessel 16, this leads to a balance of forces, which compresses the pressure vessel segments 1 during operation in the axial direction. The separation forces in the joints 13 are overcompensated when the counter-pressure surfaces 15 are larger than the areas which are located from the pressure chamber 8 to the seals 4 at the end faces 14 of the pressure vessel segments 1.

Figur 4 zeigt in einen Druckbehälter 16 eingeführte Innenbüchsensegmente 3 mit Abdichtungen 4. Auch diese Innenbüchsensegmente 3 weisen durch ihre Ausgestaltung die notwendigen Gegendruckflächen 15 auf und führen zu einer axialkräftekompensierten Bauweise. Die Stirnflächen 18 der Innenbuchsensegmente 3 sind hier eben ausgeführt, können aber auch formschlüssig wie bereits oben beschrieben anderweitig ausgeführt sein, was keine Auswirkung auf die axiale Kompensation der Kräfte hat. Die Innenbuchsensegmente 3 können, da sie nicht primär die radialen Kräfte des Druckraums 8 aufnehmen müssen mit Bohrungen (nicht dargestellt) zur Leitung von Fluiden zur Temperaturregelung versehen sein. Vorteilhafterweise werden aber die Innenbuchsensegmente 3 mit Nuten 5 auf der vom Druckraum 8 abgewandten Seite versehen die über einen Einlauf 6 versorgt werden können. Dementsprechend findet sich am anderen Verschlussdeckel 2 ein entsprechender Auslauf 6. Im Betrieb werden die Innenbuchsensegmente 3 gegen die Druckbehältersegmente 1 gepresst und somit findet eine entsprechende Abdichtung der Nuten 5 für eine ordentliche Fluidverteilung statt. Unter den Begriff der Temperierung fällt natürlich auch die Anwendung einer Kühlung über entsprechend eingeleitete Kühlfluide während des Betriebes oder Phasen des Betriebes oder das Erwärmen des Druckbehälters bei der Verwendung in einer Warm-Isostatischen Presse (WIP). FIG. 4 shows in a pressure vessel 16 imported inner sleeve segments 3 with seals 4. These inner sleeve segments 3 have by their design, the necessary counter-pressure surfaces 15 and lead to an axialkräftekompensierten design. The end faces 18 of the inner sleeve segments 3 are made flat here, but can also be positively designed as described above otherwise, which has no effect on the axial compensation of the forces. The inner sleeve segments 3, since they do not have to absorb primarily the radial forces of the pressure chamber 8 with holes (not shown) for the conduction of fluids for temperature control be provided. Advantageously but the inner sleeve segments 3 provided with grooves 5 on the side facing away from the pressure chamber 8 side which can be supplied via an inlet 6. Accordingly, at the other closure lid 2, a corresponding outlet 6. In operation, the inner sleeve segments 3 are pressed against the pressure vessel segments 1 and thus finds a corresponding sealing of the grooves 5 for proper fluid distribution instead. Of course, the term "tempering" also includes the use of cooling via appropriately introduced cooling fluids during operation or phases of operation or heating of the pressure vessel when used in a hot isostatic press (WIP).

In Figur 5 erfolgt die Abdichtung zwischen den Druckbehältersegmenten 1 mit einem Abdichtring 19, in den die Dichtelemente 4 integriert sind. Dieser Abdichtring 19 wird mittels Halteelementen 20 über den Trennfugen 13 der Druckbehältersegmente 1 gehalten. Dies bietet den Vorteil, dass zum Wechsel der Abdichtungen 4, nur die Trennringe 19 aus dem Druckraum 8 entnommen werden müssen und die schweren drucktragenden Druckbehältersegmente 1 in ihrer zusammengesetzten Form stehen bleiben können. Dabei ist es unerheblich ob Abdichtungen 4 zwischen den Druckbehältersegmenten 1 angeordnet sind oder nicht.In FIG. 5 the seal between the pressure vessel segments 1 with a sealing ring 19, in which the sealing elements 4 are integrated. This sealing ring 19 is held by means of holding elements 20 on the parting lines 13 of the pressure vessel segments 1. This offers the advantage that only the separating rings 19 must be removed from the pressure chamber 8 to change the seals 4, and the heavy pressure-bearing pressure vessel segments 1 can remain in their assembled form. It is irrelevant whether seals 4 are arranged between the pressure vessel segments 1 or not.

Bezugszeichenliste: DP 1306 EPList of Reference Numerals: DP 1306 EP

1.1.
DruckbehältersegmentPressure vessel segment
2.Second
Verschlussdeckelcap
3.Third
InnenbüchsensegmentInner liner segment
4.4th
Abdichtungseal
5.5th
Nutengroove
6.6th
Ein-/AuslaufInlet / outlet
7.7th
axial Kräfteaxial forces
8.8th.
Druckraumpressure chamber
9.9th
Zugankertie rods
10.10th
Verspannplattebracing
11.11th
Druckplatteprinting plate
12.12th
Pressenrahmenpress frame
13.13th
Trennfugeparting line
14.14th
Stirnflächeface
15.15th
GegendruckflächeCounterpressure surface
16.16th
Druckbehälterpressure vessel
17.17th
18.18th
Stirnflächeface
19.19th
InnendichtringInner sealing ring
20.20th
Halteelementeretaining elements

Claims (7)

  1. An isostatic press with a pressure container (16) disposed in a press frame (12), wherein the pressure container (16) comprises a plurality of pressure container segments (1) fitted together axially in a form-fit manner and closure covers (2), wherein the pressure container (16) is constituted in a manner that enables the fitting-together of the individual parts at the place of assembly and wherein the pressure container segments (1) are sealed at or over parting lines (13) between the pressure container segments (1), characterised in that there are disposed on the first and last pressure container segment (1) counter-pressure areas (15), which are subjected to the pressure from the pressure space (8) and whose resultant axial forces (7) counteract the axial forces arising in the parting lines (13) between the pressure container segments (1) between seal (4) and the usable pressure space (8).
  2. The isostatic press with a pressure container (16) disposed in a press frame (12), wherein the pressure container (16) comprises a plurality of pressure container segments (1) fitted together axially in a form-fit manner and closure covers (2), wherein the pressure container (16) is constituted in a manner that enables the fitting-together of the individual parts at the place of assembly and wherein the pressure container segments (1) are sealed at or over parting lines (13) between the pressure container segments (1), a plurality of the inner sleeve segments (3) are placed without prestressing against the pressure container segments (1), the axially outermost inner sleeve segments (3) comprise counter-pressure areas (15), which are subjected to the pressure from the pressure space (8) and whose axial forces (7) counteract the axial pressure forces, and the inner sleeve segments (3) comprise grooves (5) and/or channels for the fluid distribution.
  3. The isostatic press with a pressure container (16) disposed in a press frame (12), wherein the pressure container (16) comprises a plurality of pressure container segments (1) fitted together axially in a form-fit manner and closure covers (2), wherein the pressure container (16) is constituted in a manner that enables the fitting-together of the individual parts at the place of assembly and wherein the pressure container segments (1) are sealed at or over parting lines (13) between the pressure container segments (1), characterised in that the two outermost pressure container segments (1) comprise counter-pressure areas (15), which are subjected to the pressure from the pressure space (8) and whose axial forces (7) counteract the axial pressure forces, and sealing rings (19) with seals (4) disposed therein are disposed over the parting lines (13).
  4. The isostatic press with a pressure container according to claims 1 to 3, characterised in that the pressure container segments (1) are constituted single-layered or multi-layered.
  5. The isostatic press with a pressure container according to claims 1 to 3, characterised in that the seals (4) are constituted as elastomer seals.
  6. The isostatic press with a pressure container according to claims 1 to 3, characterised in that additional sealing elements are integrated into the seals (4).
  7. The isostatic press according to claim 2, characterised in that the grooves (5) are provided for conveying cool or warm fluids.
EP20060006779 2005-03-30 2006-03-30 Isostatic press with a split pressure container Not-in-force EP1707346B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510014835 DE102005014835A1 (en) 2005-03-30 2005-03-30 Isostatic press with a multipart pressure vessel

Publications (3)

Publication Number Publication Date
EP1707346A2 EP1707346A2 (en) 2006-10-04
EP1707346A3 EP1707346A3 (en) 2011-08-31
EP1707346B1 true EP1707346B1 (en) 2013-09-25

Family

ID=36515946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060006779 Not-in-force EP1707346B1 (en) 2005-03-30 2006-03-30 Isostatic press with a split pressure container

Country Status (2)

Country Link
EP (1) EP1707346B1 (en)
DE (1) DE102005014835A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010102644A1 (en) * 2009-03-11 2010-09-16 Avure Technologies Ab Pressure vessel for a high pressure press
CN102439348B (en) * 2009-03-11 2014-04-23 艾维尔技术公司 Pressure vessel for a high pressure press
US20130334232A1 (en) * 2011-01-07 2013-12-19 Avure Technologies Ab Welded sealing of pressure cylinder vessel
DE102012023186A1 (en) 2012-11-28 2014-05-28 Uhde High Pressure Technologies Gmbh Container closure device for high pressure chamber
ES2939718T3 (en) * 2018-10-10 2023-04-26 Exdin Solutions Spolka Z Ograniczona Odpowiedzialnoscia High pressure isostatic pressing assembly, in particular high pressure food processing assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3584884A (en) * 1968-09-10 1971-06-15 Western Electric Co Pressure elongatable support apparatus
US4732556A (en) * 1986-12-04 1988-03-22 Aerojet-General Corporation Apparatus for synthesizing and densifying materials using a shape memory alloy
US5071140A (en) * 1990-01-02 1991-12-10 Federico Quevedo Del Rio Self-pressurized gasket seal
JP2732938B2 (en) * 1990-07-27 1998-03-30 株式会社神戸製鋼所 High pressure vessel
JP2004337883A (en) * 2003-05-13 2004-12-02 Kobe Steel Ltd Isotropic pressure apparatus

Also Published As

Publication number Publication date
DE102005014835A1 (en) 2006-10-05
EP1707346A3 (en) 2011-08-31
EP1707346A2 (en) 2006-10-04

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