FIELD: power engineering.
SUBSTANCE: shaft of the main circulating pump (MCP) is arranged with such length that the impeller by the level is above the core. Each MCP is equipped with a supply device from vertical blades attached to its body and arranged along the narrow part of the MCP body and directed radially to the MCP axis. Input of coolant into the supply device is made from under the free level of coolant via a circular system of windows formed by upper parts of the specified blades and limited on top with a horizontal circular visor.
EFFECT: prevention of gas and admixtures ingress into a coolant flow going towards an impeller, lower stresses in elements of an MCP body; increased stiffness of MCP cantilever part, reduced spread of coolant flow parameters upstream an impeller, reduced activation of elements of an MCP rotating assembly.
4 dwg
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