GRID Russian patent published in 2010 - IPC F28F9/00 F28F9/13 

FIELD: heating.

SUBSTANCE: invention refers to heat engineering and can be used as the device for spacing a bundle of heat exchange tubes of nuclear power plant operating on liquid metal heat carrier in variable load conditions. In the grid containing a rim with rows of planks located parallel in each row, and at an angle to each other - in the adjacent one, at that, rim on one side is equipped with an edge plate with a hole made for tubes and at the level of each row of planks it is provided with windows, each next adjacent row of planks changes its direction relative to vertical constituent part of the rim in helical line so that hex-shaped cells are formed in plan view.

EFFECT: design of the grid of the proposed type will eliminate vibration of a bundle of heat exchange tubes.

3 dwg