DE7330739U - Valve plate for reactor valve - Google Patents
Valve plate for reactor valveInfo
- Publication number
- DE7330739U DE7330739U DE7330739U DE7330739DU DE7330739U DE 7330739 U DE7330739 U DE 7330739U DE 7330739 U DE7330739 U DE 7330739U DE 7330739D U DE7330739D U DE 7330739DU DE 7330739 U DE7330739 U DE 7330739U
- Authority
- DE
- Germany
- Prior art keywords
- valve
- plate
- reactor
- plastic plate
- plastic
- 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
- 239000004033 plastic Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
- Lift Valve (AREA)
Description
VENTILPLATTE FÜR R E AK TOR VENT I LVALVE PLATE FOR R E AK TOR VENT I L
Die Erfindung betrifft eine Ventilplafte für Reaktorventile, bestehend aus einer Kunststoffplatte, die einen ebenen metallischen Ventilsitz abdichtetThe invention relates to a valve plate for reactor valves, consisting of a Plastic plate that seals a flat metal valve seat
Die Ventil abdichtung im Sitz eines Reaktorventils ist sehr problematisch» Die Dichtigkeit, die hier gefordert wird, ist aussergewöhnlich hoch, ebenso der Temperaturbereich» Er reicht von -2oo C bis + 35a C. was einer Tenvperaturdifferenz von 55o C entspricht. Da es sich dazu bei dem Medium meistens um Helium handelt, kann nur eine Metall'Kunststoffpaarung die geforderte Dichtheit erzielen. Als einziger geeigneter Kunststoff entsprechend dem Temperaturbereich bietet sich Polyimid an, der aber den Nachteil besitzt, besonders im extremen Temperaturbereich, recht spröde und damit kerbempfindlich zu sein. Dazu kommt dann noch die grosse Ausdehnung des Kunststoffes durch die Temperaturdifferenz von 55o C. Bei den hohen Anpresskräften des Ventilkegels im geschlossenen Zustand des Ventiles und einem gleichzeitig extremen Temperaturwechsel wird die Kunststoffplatte in radialer Richtung zerstört. Eine Verkleinerung der Auflagefläche der Platte mit einem dadurch verbundenen geringeren Anpressdruck lässt wiederum kerbempfindliche Übergänge entstehen, die dann zum Bruch der Platte führen.The valve seal in the seat of a reactor valve is very problematic »Die The tightness required here is exceptionally high, as is the Temperature range »It ranges from -2oo C to + 35a C. which is a temperature difference of 55o C. Since the medium is mostly helium, only a metal / plastic pairing can achieve the required tightness achieve. The only suitable plastic in accordance with the temperature range is polyimide, but it has the disadvantage, especially in the extreme Temperature range to be quite brittle and therefore notch sensitive. Then there is the great expansion of the plastic due to the temperature difference of 55o C. With the high contact pressure of the valve cone when closed of the valve and a simultaneous extreme temperature change, the plastic plate is destroyed in the radial direction. A reduction in the contact area The lower contact pressure associated with the plate in turn creates notch-sensitive transitions, which then lead to breakage of the plate to lead.
Erfindungsgemäss wird das Problem dadurch gelöst, dass die Kunststoffplatte er« der Dichtsteile als leicht erhabene Liniendichtung ausgebildet ist. Die erhabene Ausbildung der Kunststoffplatte ist dabei so schwach geformt, dass an den Ausläufen keine fühlbaren Übergänge entstehen, die zu einem Kerbbruch führen könnten.According to the invention, the problem is solved in that the plastic plate he « the sealing parts is designed as a slightly raised line seal. The sublime The formation of the plastic plate is so weakly shaped that at the outlets there are no tangible transitions that could lead to a notch breakage.
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE7330739U true DE7330739U (en) | 1974-02-21 |
Family
ID=1296289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE7330739U Expired DE7330739U (en) | Valve plate for reactor valve |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE7330739U (en) |
-
0
- DE DE7330739U patent/DE7330739U/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE7330739U (en) | Valve plate for reactor valve | |
| DE2428242A1 (en) | SHUT-OFF AND REGULATING VALVE | |
| DE1904186A1 (en) | Use of the plastic-to-metal seal combination for fittings | |
| DE9405108U1 (en) | Pipe aerator for final line ventilation of drinking water installations | |
| DE1220690B (en) | Gate valve | |
| DE2111851C3 (en) | Safety shut-off device for connecting pressure medium consumers to a pressure medium source | |
| DE513897C (en) | Rooster | |
| DE1062512B (en) | Shut-off device, in particular shut-off valve | |
| DE558129C (en) | Safety shut-off valve | |
| DE1037379B (en) | Pressure flushers, in particular toilet pressure flushers, with a counter pressure chamber | |
| DE2313734A1 (en) | FITTINGS FOR SHUT-OFF OF A PIPE DEPENDING ON THE FLOW | |
| DE1917693C3 (en) | Sealing sealing | |
| DE2903902A1 (en) | VALVE FOR PRESSURIZED GASEOUS OR LIQUID MEDIA | |
| DE7114056U (en) | FLAP SHUT-OFF VALVE | |
| DE156099C (en) | ||
| DE2208988A1 (en) | RUBBER SEAL FOR BAYONET CLOSURES | |
| DE2645659A1 (en) | Combination elastomer valve seal - has sealing ring with elastic pressure ring underneath held in valve plug groove | |
| DE2117787A1 (en) | FLAP SHUT-OFF VALVE | |
| DE1750731C3 (en) | Non-return pipe aerator | |
| DE2206466C3 (en) | Wall-mounted mixer tap for cold and hot water | |
| DE7118108U (en) | Hose rupture safety valve | |
| DE291863C (en) | ||
| DE720600C (en) | Sealant for gate valve | |
| DE557585C (en) | Back pressure valve, in which the valve body is controlled by a back pressure chamber connected to the consumption line | |
| DE1929315U (en) | GATE VALVE WITH A SAFETY VALVE TO AVOID OVERPRESSURE IN THE HOUSING. |