Process and device to regulate the inner pressure of a tank and/or to establish defined flow conditions for gas currents in the head space of tanks

US5896881A · kind A · utility

Assignee

• Messer Griesheim GmbH · DE

Inventors

• Friedhelm Herzog · Krefeld, DE
• Franz Lurken · Kempten, DE

Key dates

• Filing date: Jun 10, 1996
• Grant date: Apr 27, 1999
• Expiry date: Jun 10, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/3127
• WIPO field: Control
• WIPO sector: Instruments

Abstract

The process and device according to the invention make it possible to reduce the pressure build-up in the head space as a function of the quantity of inflow medium. It also makes it possible to maintain or create defined flow conditions in the head space gas. This is accomplished by measuring the quantity of gaseous and/or liquid inflow medium and then venting the head space gas as a function of the quantity of inflow medium.