DE3130651C2 - Large vacuum valve that can be baked out - Google Patents
Large vacuum valve that can be baked outInfo
- Publication number
- DE3130651C2 DE3130651C2 DE19813130651 DE3130651A DE3130651C2 DE 3130651 C2 DE3130651 C2 DE 3130651C2 DE 19813130651 DE19813130651 DE 19813130651 DE 3130651 A DE3130651 A DE 3130651A DE 3130651 C2 DE3130651 C2 DE 3130651C2
- Authority
- DE
- Germany
- Prior art keywords
- sealing
- sealing lip
- lip
- sealing plate
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
- F16K51/02—Other details not peculiar to particular types of valves or cut-off apparatus specially adapted for high-vacuum installations
Abstract
Bei einem ausheizbaren großen Vakuumventil mit tellerfederförmigen Dichtlippen (70), welche im Gehäuse (80) auf eine axiale Auflage (82) gedrückt und durch die dabei eintretende Verformung radial auf die Dichtflächen (84) im Gehäuse angepreßt werden, besteht die Dichtlippe (70) aus Titan oder einer Titanlegierung. en. Die Naht muß geschlossen werden, wenn der Schlauch eingesetzt ist. Damit deIn the case of a large vacuum valve that can be baked out and has sealing lips (70) in the shape of a plate spring, which are pressed onto an axial support (82) in the housing (80) and pressed radially onto the sealing surfaces (84) in the housing as a result of the deformation that occurs, the sealing lip (70) consists of made of titanium or a titanium alloy. en. The seam must be closed when the hose is in place. So that de
Description
axiale Auflage 13 am Gehäuse 11. Beim weiteren Anpressen verformt sich dann die Dichtlippe 2 und hebt hierbei von der Stützplatte 6 ab. Hierdurch vergrößert sich der die Dichtfläche 14 bildende äußere Umfang der Dichtlippe 2. Die Dichtfläche 14 legt sich an die zylindrisehe Dichtfläche 15 am Gehäuse 11 an. Bei Weiterverformung der Dichtlippe 2 tritt jetzt eine Erhöhung des radialen Anpreßdruckes auf die Dichtflächen 14,15 eiaaxial support 13 on the housing 11. When the pressure is continued, the sealing lip 2 is then deformed and lifted here from the support plate 6. As a result, the outer circumference of the sealing surface 14 is enlarged Sealing lip 2. The sealing surface 14 rests against the cylinder rise Sealing surface 15 on the housing 11. If the sealing lip 2 is deformed further, there is now an increase in the radial contact pressure on the sealing surfaces 14,15 eia
Bei der Verformung der Dichtlippe schwenkt diese um das durch Kontur 3, 5 gebildete Lager, wobei sich der Kompensatorring 7 verformt Eine Begrenzung der Verformung kann durch Anschlagschrauben 16 erreicht werden, die an der Dichtplatte 1 befestigt sind.When the sealing lip is deformed, it pivots about the bearing formed by the contour 3, 5, whereby the compensator ring 7 deforms The deformation can be limited by stop screws 16 attached to the sealing plate 1.
Die vorliegende Erfindung bezieht sich auf »große Vakuumventile«. Vorteilhaft sind die erfindungsgemä-Ben Ideen bei Ventilen ab Nennweite 400 mm anwendbar. The present invention relates to "large vacuum valves". The invention-Ben are advantageous Ideas can be used for valves with a nominal diameter of 400 mm or more.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
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Claims (1)
ein federnder Ringsteg (7) vorgesehen ist Aus den DE-OS 26 23 906 und 28 40 618 sowie aus derThe use of high-alloy, hard steel bodies is pressed radially onto sealing surfaces in the housing in conjunction with less hard surfaces, and which is designed as a separate ring body, has not led to sufficient results because it is characterized by it that the sealing lip io special with large dimensions of the Durchflußöffnun- (2) on the sealing plate (1) is held in a known manner against considerable elastic deformations for Anpresschwenkbar and that for vacuum sealing are necessary and with this combination extremely important connection of the Sealing lip with the sealing plate he specific contact pressures are required,
a resilient annular web (7) is provided From DE-OS 26 23 906 and 28 40 618 and from the
mit einer tellerfederförmigen, an einer Dichtplatte ge- Die Figur zeigt eine Dichtplatte 1 eines Ventils, an der halterten Dichtlippe, die im Gehäuse auf eine axiale 50 die im wesentlichen tellerfederförmig gestaltete Dicht-Auflage gedrückt und durch die dabei eintretende Ver- lippe 2 schwenkbar befestigt ist Dazu weist die Dichtformung radial auf Dichtflächen im Gehäuse angepreßt lippe 2 eine gerundete Innenkante 3 auf. Diese Kante 3 wird und die als separater Ringkörper gestaltet ist. wird warm über den Ringwulst 4 in die Nut 5 an der Wegen der zum Teil hohen Temperaturen beim Aus- Dichtplatte 1 aufgezogen und dadurch in diese gepreßt, heizen (bis 300° C) können für die Abdichtung der Dicht- 55 Hierdurch ergibt sich eine gelenkartige Lagerung der platten keine Elastomerdichtungen Verwendung finden. Dichtlippe 2 in der Dichtplatte 1. Hierbei ist die Grund-Die Abdichtung muß durch Metalloberflächen erfolgen. position der Dichtlippe 2 durch die Anschlagplatte 6, Derartige Oberflächen geben aber schon bei der ge- welche mit der Dichtplatte 1 verschraubt ist, fixiert,
ringsten Rauhigkeit oder Unebenheit keine ausreichen- Die vakuumdichte Abdichtung erfolgt über den de Abdichtung. Es ist daher nötig, die Metalloberfläche 60 Ringsteg bzw. Kompensatorring 7, der an der Dichtlipmit sehr hohen spezifischen Drücken a-feinar.derzu pe 2 mit der Naht 8 und an der Dichtplatie 1 rnii der pressen, so daß gewisse plastische Verformungen in der Naht 9 angeschweißt oder in bekannter Weise mit Zwi-Oberfläche eintreten und dadurch fast ein Ineinander- schenlage einer Metalldichtung verschraubt ist. Anstelle fließen der Oberflächen eintritt. dieses Kompensatorringes 7 kann auch ein Steg der Man hat versucht, durch Aufbringen von Metallzwi- 65 Dichtlippe 2 mit entsprechend dünner Wandstärke an schenschichten mit höherer Plastizität — z. B. Gold- die Dichtplatte 1 angeschweißt sein,
und Silberschichten — diesen Oberflächenvorgang des Wird die Dichtplatte 1 gegen das Gehäuse 11 bewegt, gegenseitigen Einfließens zu erleichtern. Es hat sich so legt sich Auflagefläche 12 der Dichtlippe 2 auf dieThe invention relates to a bake-out vacuum valve presented exemplary embodiment to be explained
The figure shows a sealing plate 1 of a valve on the mounted sealing lip, which in the housing is pressed onto an axial sealing support, which is essentially in the form of a cup spring, and is pivotably fastened by the lip 2 entering it For this purpose, the sealing molding has lip 2 pressed radially onto sealing surfaces in the housing and a rounded inner edge 3. This edge 3 and which is designed as a separate ring body. is drawn warm over the annular bead 4 into the groove 5 on the Because of the sometimes high temperatures during the sealing plate 1 and thus pressed into it, heating (up to 300 ° C) can be used to seal the seal Storage of the plates no elastomer seals are used. Sealing lip 2 in sealing plate 1. The basic principle here is that the seal must be made using metal surfaces. position of the sealing lip 2 through the stop plate 6, but such surfaces are already fixed when the one is screwed to the sealing plate 1,
the slightest roughness or unevenness is not sufficient- The vacuum-tight seal is made via the de seal. It is therefore necessary to press the metal surface 60 of the ring web or compensator ring 7, which on the sealing lip with very high specific pressures a-feinar.derzu pe 2 with the seam 8 and on the sealing plate 1 rnii the, so that certain plastic deformations in the seam 9 welded on or enter in a known manner with an intermediate surface and thereby almost an interlacing of a metal seal is screwed. Instead of flowing the surfaces enters. this Kompensatorringes 7 can also be a web of one has tried, by applying Metallzwi- 65 sealing lip 2 with a correspondingly thin wall thickness on layers with higher plasticity - z. B. gold the sealing plate 1 be welded,
and silver layers - this surface process of moving the sealing plate 1 against the housing 11 to facilitate mutual flow. It has become so contact surface 12 of the sealing lip 2 lies on the
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813130651 DE3130651C2 (en) | 1981-08-03 | 1981-08-03 | Large vacuum valve that can be baked out |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813130651 DE3130651C2 (en) | 1981-08-03 | 1981-08-03 | Large vacuum valve that can be baked out |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3130651A1 DE3130651A1 (en) | 1983-02-17 |
DE3130651C2 true DE3130651C2 (en) | 1986-10-23 |
Family
ID=6138455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19813130651 Expired DE3130651C2 (en) | 1981-08-03 | 1981-08-03 | Large vacuum valve that can be baked out |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3130651C2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005004987B8 (en) | 2005-02-02 | 2017-12-14 | Vat Holding Ag | vacuum valve |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2276620A (en) * | 1939-12-26 | 1942-03-17 | Reed Roller Bit Co | Valve |
US3973753A (en) * | 1974-03-18 | 1976-08-10 | Varian Associates | High vacuum gate valve |
DE2523152C3 (en) * | 1975-05-24 | 1982-01-07 | Leybold-Heraeus GmbH, 5000 Köln | High vacuum valve, especially for ultra-high vacuum purposes |
DE2623906A1 (en) * | 1976-05-28 | 1977-12-01 | Vat Ag | Valve for high vacuum applications - has disc with rounded edges cooperating with conical or spherical seat |
DE2840618A1 (en) * | 1978-09-18 | 1980-03-27 | Leybold Heraeus Gmbh & Co Kg | High vacuum seal baked at high temp. - includes pendant double seal support structure metal sealing flanges |
CH637745A5 (en) * | 1979-02-01 | 1983-08-15 | Balzers Hochvakuum | Hochvakuum valve. |
-
1981
- 1981-08-03 DE DE19813130651 patent/DE3130651C2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3130651A1 (en) | 1983-02-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
8105 | Search report available | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: LEYBOLD AG, 5000 KOELN, DE |
|
8339 | Ceased/non-payment of the annual fee |