FIELD: nuclear power engineering.
SUBSTANCE: proposed spacer grid used as one of nuclear-reactor fuel assembly components is assembled of set of parallel plates. These plates intersect to form subchannels; they are fixed at points of intersection by nonsplit joint at least on butt-ends. Spacer grid has spring members in the form of sections of tubular shells with shaped surfaces and have supporting sections. Spring members are installed and secured directly in subchannels designed to receive fuel elements. Supporting sections of each spring member are divided into first supporting sections protruding toward spring member axis for securing fuel elements within subchannels and second supporting sections protruding toward subchannel walls. At least one of second supporting sections abuts against respective wall of subsection.
EFFECT: enhanced stiffness of spacer grid, its versatility, and reliability of fuel element fixation, facilitated manufacture.
8 cl, 13 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MIXING GRID FOR NUCLEAR REACTOR FUEL ASSEMBLY | 2008 |
|
RU2383954C1 |
| SPACER GRID OF FUEL ASSEMBLY OF NUCLEAR REACTOR (VERSIONS) | 2012 |
|
RU2518058C1 |
| FUEL ASSEMBLY OF NUCLEAR REACTOR | 2008 |
|
RU2391724C1 |
| FUEL ASSEMBLY OF WATER-MODERATED WATER-COOLED POWER REACTOR | 2000 |
|
RU2177650C2 |
| FUEL ASSEMBLY OF NUCLEAR REACTOR | 2013 |
|
RU2540981C1 |
| SPACER GRID FOR FUEL ASSEMBLY | 2010 |
|
RU2448375C1 |
| MIXING AND SPACER GRIDS OF NUCLEAR REACTOR FUEL ASSEMBLY (VERSIONS) | 2016 |
|
RU2638647C2 |
| METHOD OF MAKING FUEL ASSEMBLY OF NUCLEAR REACTOR | 2005 |
|
RU2287866C1 |
| NUCLEAR REACTOR FUEL ASSEMBLY | 1999 |
|
RU2174718C2 |
| NUCLEAR REACTOR FUEL ASSEMBLY | 2000 |
|
RU2189644C2 |
