Demister vane in situ cleaning fixture

摘要

This invention relates to an in-situ cleaning fixture for mist removal separator vane assemblies. The cleaning fixture includes an injection chamber with an inlet and a perforated plate which extends horizontally, substantially over the length of the mist removal separator vane assembly. A cleaning fluid source is connected to the injection chamber during a cleaning process. The injection chamber is designed to receive the cleaning fluid, pass the cleaning fluid through the holes formed in the plate, downwardly along a plurality of vanes in the mist removal separator vane assembly and into the drain trough. The in-situ cleaning fixture facilitates removal of scale build-up from the mist removal separator vane assembly and thereby restores the efficacy of the vanes.

主权项

1. A mist removal separator vane assembly having an in-situ cleaning fixture, the mist removal separator vane assembly and in-situ cleaning fixture being positioned in a component in a nuclear reactor, the mist removal separator vane assembly being structured to separate moisture from steam generated in the nuclear reactor, comprising:
a vane bank extending substantially over a horizontal length of the vane assembly and having a plurality of vanes; and a drain trough extending substantially over a horizontal length of the vane assembly, wherein the plurality of vanes extend downwardly toward the drain trough, the in-situ cleaning fixture being structured to at least partially remove scale build-up in the vane bank without removing the vane assembly from the component, comprising: an injection chamber positioned above the vane bank, having an inlet and a plate extending substantially over the horizontal length of the vane bank, the plate having a plurality of holes formed therein, the injection chamber structured to receive cleaning fluid, pass the fluid through the holes in the plate, downwardly along the plurality of vanes and into the drain trough; a cleaning fluid source being structured to supply the cleaning fluid to the injection chamber during application of a cleaning process; and a means for connecting the cleaning fluid source to the inlet of the injection chamber.