Method for the cleaning of heat exchange tubes and collecting device for the collection of deposits from heat exchange tubes

US6308774A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Georg Krämer · Ebermannstadt, DE
• Franz Ammann · Erlangen, DE

Key dates

• Filing date: Aug 19, 1999
• Grant date: Oct 30, 2001
• Expiry date: Aug 19, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E30/30
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A method for the cleaning of heat exchange tubes and a collecting device for the collection of deposits from heat exchange tubes, include releasing deposits and collecting the deposits with a collecting vessel. The collecting vessel has an inlet orifice that completely encloses the underside of a tube plate in which exit-side tube ends are disposed. The collecting vessel has an inflatable hose for sealing off the collecting vessel. The collecting vessel is capable of being folded together, so that it can be introduced through a service orifice into the heat exchanger. The collecting vessel provides simple handling and positioning and serves, in particular, for use in a nuclear plant.