Method for measuring the cleaning effectiveness of cleaning bodies on heat exchangers
AssigneeTaprogge GmbH
InventorWolfgang Czolkoss
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Abstract
The invention concerns a method for measuring the cleaning effectiveness of cleaning bodies (20) on heat exchangers having a bunch of tubes (16). Further, a plant is proposed in which the heat transfer from steam into cooling water through the walls of the condenser tubes is measured. The measurement is carried out with the aid of an inertialess temperature sensor (15) so that, by highly sensitive measuring of the temperature sequence of a certain control volume, the cleaning effect of the cleaning bodies can be derived.
Claims15
A method of operating a heat exchanger comprising a bunch of heat exchange tubes extending from an inlet manifold to an outlet manifold, the method comprising passing water through said tubes from said inlet manifold to said outlet manifold and feeding cleaning bodies into said intake manifold whereby said bodies are forced by water flow through said tubes for cleaning said tubes, said cleaning bodies being recirculated from said outlet manifold via a lock back to said inlet manifold;
- and monitoring the cleaning effectiveness of said bodies by passing one of said cleaning bodies through a measuring tube containing water, contacting said measuring tube externally with a heat source whereby water in said measuring tube is warmed, and measuring and processing the sequence of local temperature changes when a cleaning body passes a predetermined position along said measuring tube.
Dependencies are inferred from the claim text.