Device for cooling a consumer with a super-cooled liquid in a cooling circuit

US10422554B2 · kind B2 · utility

Assignee

• MESSER GROUP GMBH · DE

Inventors

• Friedhelm Herzog · Krefeld, DE
• Thomas Kutz · Brüggen, DE

Key dates

• Filing date: Jun 18, 2014
• Grant date: Sep 24, 2019
• Expiry date: Oct 18, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F17C2270/05
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A super-cooled liquid medium, preferably super-cooled liquid nitrogen, is pumped through a sub-cooler and cooled by the same medium that evaporates in the vacuum. This super-cooled nitrogen is used as coolant for a consumer. If a small amount of heat is emitted by the consumer to the nitrogen, the liquid medium can be guided in the circuit wherein the sub-cooler is arranged. For compensating volume fluctuations, such a circuit requires a compensation vessel, which is very expensive and can only be operated in the presence of a super-cooled medium when either a part of the medium is heated using external energy, or an inert gas which boils at very low temperatures is used as a pressure compensation medium. According to the disclosure, when a supply container for the liquid medium is integrated into the cooling circuit and used as a compensation vessel, a separate compensation vessel is not required.