VENTIL ZUR SICHERUNG DES AUSSENBEHAELTERS VON DOPPELWANDIGEN VAKUUMISOLIERTEN SPEICHERBEHAELTERN FUER TIEFSIEDENDE VERFLUESSIGTE GASE

In order to secure the outer vessel (2) of double-walled vacuum-insulated storage tanks for low boiling liquefied gases against an increase in pressure in the insulation space in the event of failure of the vacuum, valves are used which consist of a valve housing (1), mounted in the outer vessel, a...

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Bibliographische Detailangaben
Hauptverfasser:	HOLSTEIN,GUENTER, HENNEBORN,ROLAND, FIESELER,HEINRICH
Format:	Patent
Sprache:	ger
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS CYLINDERS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES FIXED-CAPACITY GAS-HOLDERS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PISTONS SEALINGS STORING OF DISTRIBUTING GASES OR LIQUIDS TAPS THERMAL INSULATION IN GENERAL VALVES VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES WEAPONS
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Beschreibung
Zusammenfassung:	In order to secure the outer vessel (2) of double-walled vacuum-insulated storage tanks for low boiling liquefied gases against an increase in pressure in the insulation space in the event of failure of the vacuum, valves are used which consist of a valve housing (1), mounted in the outer vessel, a sealing plug (3) and an O-ring (4), as the sealing element. The O-ring is deformed exclusively in the axial direction by the pressure difference between the atmosphere and the vacuum and an additional spring force. This valve is little suited to small vessels, inter alia because of the relatively large structural volume resulting from the spring. In a valve which is particularly suitable for small vessels, the O ring is thus deformed radially and, at the same time, axially, exclusively under the influence of the external air pressure, as a consequence of the dimensions of the valve housing and the sealing plug.