Method and apparatus for a high-temperature deposition solution injector
AssigneeGE-Hitachi Nuclear Energy Americas LLC
InventorsThomas Caine, Adrian Mistreanu, Russell A. Seeman
Life of this patent
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Abstract
A method and apparatus for a deposition solution injector for a nuclear reactor that may inject an ambient temperature deposition solution into a high temperature, high pressure feed-water flow line. The method and the apparatus ensures that the deposition solution is delivered in a location within the feed-water that is beyond a boundary layer of flowing water, to prevent smearing of the solution and prevent clogging of the deposition solution within the injector. The axial cross-sectional profile of the injector, and the location of an injection slot on the injector, may reduce vortex eddy flow of the feed-water into the injector to further reduce injector blockage.
Claims14
A method of injecting a deposition solution into a high-temperature feed-water pipe, comprising:
- determining a boundary layer depth of fluid flowing within the feed-water pipe,
- forming an injector,
- forming an injection slot on a distal end of the injector,
- inserting the injector through a side of the feed-water pipe,
- extending the injector into the feed-water pipe such that the injection slot extends beyond the depth of the boundary layer,
- rotating the injector to locate the injection slot on a downstream side of the injector, relative to a direction of the fluid flowing within the feed-water pipe,
- injecting the deposition solution into the injector and into the feed-water pipe.
A system for injecting a deposition solution into a high-temperature feed-water pipe, comprising:
- a feed-water pipe configured to direct a flow of fluid through the pipe,
- an injector with an injection slot on a distal end of the injector extending into the feed-water pipe configured to inject a deposition solution into the feed-water pipe,
- the injection slot of the injector extending beyond an expected depth of the boundary layer of the flow of fluid through the feed-water pipe,
- the injection slot being located on a downstream side of the injector, relative to a direction of the flow of fluid through the feed-water pipe.
Dependencies are inferred from the claim text.