FIELD: power industry.
SUBSTANCE: fuel assembly (FA) of nuclear reactor comprises fuel elements with nuclear fuel, some of which may have burnable absorber, each of which has a shell of zirconium alloy, sealed by butt resistance welding using a plug and a collet tip located in the hole of the bottom grid. The outer surface of the fuel element, at least the shell, the plug and the welded joints, have a coating in the form of a thin layer of chromium. There is also a method for producing the fuel assembly of the nuclear reactor.
EFFECT: group of inventions allows to create a design of a fuel assembly excluding a steam-zirconium reaction, which reduces the damage to the shells of the fuel elements during production of the fuel assembly.
4 cl, 4 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| FUEL ASSEMBLY OF NUCLEAR REACTOR (VARIANTS) | 2022 |
|
RU2806814C1 |
| METHOD FOR MANUFACTURING FUEL ELEMENTS AND FUEL ASSEMBLIES | 2002 |
|
RU2228550C2 |
| SPACER GRID OF FUEL ASSEMBLY OF NUCLEAR REACTOR (VERSIONS) | 2012 |
|
RU2518058C1 |
| FUEL ASSEMBLY OF NUCLEAR REACTOR | 2014 |
|
RU2566674C1 |
| NUCLEAR REACTOR FUEL ASSEMBLY | 2013 |
|
RU2534391C2 |
| FUEL ELEMENT WITH COMPOSITE PROTECTIVE COATING | 2019 |
|
RU2740701C2 |
| NUCLEAR REACTOR FUEL ASSEMBLY | 2016 |
|
RU2623580C1 |
| FUEL ELEMENT OF PRESSURIZED WATER-MODERATED NUCLEAR POWER REACTOR | 2020 |
|
RU2748538C1 |
| FUEL ASSEMBLY OF WATER-COOLED POWER REACTOR | 1997 |
|
RU2143144C1 |
| METHOD AND SPACER GRID FOR PREVENTING BURRS ON FUEL ELEMENTS | 1999 |
|
RU2175456C2 |
