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US 12,444,513 B2Granted
Piping enhancement for backflow prevention in a multiple loop, metal cooled nuclear reactor system
AssigneeGE-Hitachi Nuclear Energy Americas LLC
InventorsEric Paul Loewen, Seth Ryan Paul Strege, Nicholas Francis O'Neill, Colin Christopher O'Connor, Chelsea Ann Curtin, Edwin Wu
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Abstract
A sodium-cooled nuclear reactor includes at least one electromagnetic pump assembly and a backflow reduction pipe. The backflow reduction pipe may include an inlet, an outlet, at least one tubular section having a first length and a first diameter, and at least one fluid diode section between the inlet and the outlet.
Claims12
A method manufacturing a backflow reduction pipe comprising:
- machining at least one tubular section, the tubular section having a first diameter, the first diameter being a uniform along a length thereof;
- and
- machining at least one fluid diode section configured to restrict backflow, the fluid diode section including,
- a first section having a second diameter at a largest point of the first section, and
- a second section having a third diameter at a largest point of the second section, the first section closer to an inlet of the pipe than the second section, the first section having a first radius at a widest point thereof, the second section having a second radius at a widest point thereof, the first radius being 1.9 to 2.2 times the second radius of the second section, and the first section and the second section being generally frustoconical in cross-section,
- wherein the at least one fluid diode section has a second length and the second section has a third length, and
- wherein the second length is about 1.9 to about 2.2 times the third length of the second section.
4 more elements
Dependencies are inferred from the claim text.