Plug proof simple device to measure liquid flow in flue gas desulfurization systems using nozzle pressure as an input

摘要

An arrangement for measuring a liquid flow through a liquid spray nozzle which provides liquid from a header in a flue gas desulfurization system includes a spool having an outlet and connected to the header and the nozzle for channeling the liquid from the header to the nozzle. The outlet permits an amount of the liquid to be channeled out of the spool; and a conduit is connected to the outlet of the spool for channeling the amount of the liquid from the outlet to the outside of the vessel. A measuring device such as a pressure gauge is located outside of the vessel and is operatively connected to the conduit in order to determine the liquid flow of the nozzle based on the pressure of the liquid channeled through the conduit. A flushing device is operatively connected to the conduit for channeling a flushing liquid through the conduit in order to clean the conduit of any deposits or build-up. A plurality of valves are used in order to regulate liquid flow and purge water flow.