A high-pressure cooling system for nuclear reactor clamp zinc alloy cerium oxide

Abstract

The invention relates to a nuclear reactor cooling device, and particularly relates to a nuclear reactor clamping ring zinc alloy cerium oxide high-pressure cooling system. A footstand of a nuclear reactor compartment body is located at an inner cavity of a lower hemisphere bottom cover; supporting foot racks arranged on the outer surface of the bottom of the lower hemisphere bottom cover are placed on the bottom plane of a reactor bottom pool; a clamping ring above the lower hemisphere bottom cover seals and fixes a forced cooling cylinder; a clamping ring above the forced cooling cylinder seals and fixes an upper hemisphere top cover; a packing seal hole is arranged outside the top of the upper hemisphere top cover; an outer circle of a control wire tube is sealed and fixed in the packing seal hole on the top of the nuclear reactor compartment body. Improvement comprises that the cylinder inner side wall of the forced cooling cylinder is provided with a spiral flow guide plate, the inner edge of the spiral flow guide plate and the outer edge of the nuclear reactor compartment body are in clearance fit; the lower hemisphere bottom cover is externally connected with a high-pressure pipeline connected with a clamping ring discharge port on a clamping ring zinc alloy machine pump, and the upper hemisphere bottom cover is externally connected with a back pressure pipeline leading to a clamping ring back pressure port on the clamping ring zinc alloy machine pump.

Description

technical field [0001] The invention relates to a forced cooling device for removing decay heat from a nuclear reactor, the international patent classification is G21C15 / 18, in particular to a nuclear reactor clamp zinc alloy cerium oxide high-pressure cooling system. Background technique [0002] There are various structures of nuclear reactors used to generate electricity. In terms of coolant circulation, they can be roughly divided into reactors with forced coolant circulation and natural circulation. As we all know, the coolant of a forced circulation reactor, usually water, circulates through the core where the nuclear reaction occurs, takes away heat from the core, flows to the outside of the reactor vessel through the pipeline, and releases the heat to the dedicated In the heat exchanger, and then pumped back to the core. Known so-called "centralized" reactors have no external piping, and the heat exchangers are located in a vessel containing the core. However, this...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems in the prior art that the cooling water utilization rate of the top water tank is not high, the PCS system is complicated, and the water flow is adjusted through pressure and temperature. A forced cooling device that removes decay heat from a nuclear reactor by adding external forced circulation while keeping the shape and size of the structure constant

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