Method and apparatus for corrosion mitigation in wet pipes

Abstract

A system for injecting corrosion inhibitor into a liquid piping system includes a flow rate sensor configured to determine a flow rate of liquid entering the liquid piping system, an injector configured to inject corrosion inhibitor into the liquid piping system an injection point in an amount which varies based on the flow rate determined by the flow rate sensor, the injector being disposed in a fluid passage which is connected at a first end to a vessel containing corrosion inhibitor and at a second end to the injection point, a concentration sensor configured to determine a concentration of corrosion inhibitor in the liquid in the liquid piping system, and an alarm which generates an alarm signal if the concentration determined by the concentration sensor is outside a predetermined range.

Dependencies are inferred from the claim text.