Heat exchanger for the cooling of hot gases and heat exchange system

US9453684B2 · kind B2 · utility

Assignee

• ENI S.P.A. · IT

Inventors

• Alfred Joachim Wilhelm · Ulm, DE
• Luca Basini · Milano, IT

Key dates

• Filing date: Dec 29, 2011
• Grant date: Sep 27, 2016
• Expiry date: Dec 24, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P30/20
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A heat exchanger for the cooling of hot gases by means of a cooling fluid includes at least one vertically oriented tank containing a cooling fluid bath and having a collection space of the vapor phase generated above said cooling fluid bath, at least one vertical tubular element inserted inside said tank, and submerged in the bath open at the ends and coaxial to the tank, at least one spiral duct which rotates around the axis of the tank, inserted in the coaxial tubular element, at least one outlet for the vapor phase generated on the head of tank, wherein at least one transfer line is inserted in the lower part of the vertical tank for feeding the hot gases to the tank, the transfer line being open at the two ends, of which one is connected with the vertical tank and the other is free and outside the tank, the transfer line being tubular and protruding laterally outside the exchanger, the transfer line containing at least one central internal duct having an outer jacket in which a cooling fluid circulates, said central internal duct being in fluid connection with the spiral duct and developing vertically along the tubular element inserted in the vertical tank.