SLIDE GATE Russian patent published in 2015 - IPC F16K3/02 G21C19/10 

FIELD: power industry.

SUBSTANCE: invention is designed for shutting off and sealing of fuel recharging ducts in a nuclear reactor with a liquid-metal coolant (LMC), in particular, it can be used for removal of spent fuel assemblies (SFA). In a slide gate, a moving frame is fixed in slots of a moving solid damper on guide pins with a tension spring with a possibility of horizontal and vertical movement relative to the damper; a support with a moving bowl for collection of LMC, which is arranged on it, is installed on the moving frame; between the moving frame and the bowl there are springs installed, providing movability of the bowl in three planes and creation of a pressure force of the bowl to a seal ring installed in a flange of the slide gate; the slide gate housing is provided with a detachable sealing cover plate. Besides, the flange with the seal ring is of a detachable type.

EFFECT: invention provides collection of LMC residues, ensures reliable sealing and enlargement of technological capabilities and biological protection.

2 cl, 9 dwg