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2 632 572

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(51)

IPC

G21C3/00(2006-01-01)

(21) (22)

Application

2016118207, 2016-05-10

(24)

Start date

2016-05-10

(22)

Actual filing date

2016-05-10

(45)

Published

2017-10-06

(72)

Inventor

Chinnov Aleksandr VladimirovichZarubin Mikhail GrigorevichGoncharov Yurij Valerevich

(73)

Holder

Publichnoe Aktsionernoe Obshchestvo Zavod Khimkontsentratov"

DISTANCING LATTICE OF NUCLEAR REACTOR FUEL ASSEMBLY Russian patent published in 2017 - IPC G21C3/00

Abstract RU 2632572 C1

FIELD: power industry.

SUBSTANCE: invention relates to a distancing lattice used in fuel assemblies (FA) of a VVER type nuclear reactor. The claimed distancing lattice comprises a hexagonal rim with a field of hexagonal cells fixed therein, provided with internal protrusions made of a single sheet, so that the folded cells have bends and cuts for the cells in one row of cells arranged on one end face of the distancing lattice, and bends and cuts for the cells of the parallel row are placed on the other end face of the distancing lattice. These cuts for cells are designed, so that deflectors are formed along the cell ends, bent at an angle to the cell axis in opposite directions, as a result of which coolant flow swirls are formed which are directed clockwise in the three corners of the cell, and counterclockwise - in the other three corners.

EFFECT: improved function of coolant flow mixing, which increases fuel assemblies efficiency and its stock before the heat exchange crisis.

5 dwg

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RU 2 632 572 C1

Authors

Chinnov Aleksandr Vladimirovich

Zarubin Mikhail Grigorevich

Goncharov Yurij Valerevich

Dates

2017-10-06—Published

2016-05-10—Filed