Emergent cooling system of nuclear power station based on heat accumulating type Stirling engine

Abstract

The invention discloses an emergent cooling system of a nuclear power station based on a heat accumulating type Stirling engine. The system comprises a nuclear reactor, a water pump, a water tank, a Stirling engine, a generator, a heat accumulator and a main controller, wherein the water tank is connected with a water inlet of the water tank; a water outlet of the water tank is connected to the nuclear reactor; power of the Stirling engine is output to power output ends of the generator and the water pump; an electric energy output end of the generator is connected with the main controller; the main controller is connected with the Stirling engine; a heater in the Stirling engine is connected with the heat accumulator; the heat accumulator is further connected with the main controller; and the heat accumulator is made of a high-temperature resistant material with higher specific heat capacity. The system has the advantages of high reliability, capability of guaranteeing operation safety of the nuclear reactor and the like.

Description

technical field [0001] The invention relates to an emergency cooling system, in particular to an emergency cooling system of a nuclear power plant based on a regenerative Stirling engine. Background technique [0002] In the face of powerful nuclear energy, people always have a sense of awe, and safety is also the greatest responsibility of the nuclear power industry to the public. China's nuclear power development requirements have changed from "actively developing nuclear power" in the "Eleventh Five-Year Plan" to "efficiently developing nuclear power on the basis of ensuring safety" in the "Twelfth Five-Year Plan". of significance. [0003] A total power outage is the biggest threat to a nuclear power plant. When a nuclear power plant encounters an extreme situation and a total power outage occurs, the reactor will automatically shut down, but at the same time the emergency cooling system must be activated, that is, the residual heat removal system. When the normal cool...

AI Technical Summary

Problems solved by technology

Looking back at the recent accident at the Fukushima Daiichi Nuclear Power Plant: after the major earthquake, the entire station was powered off, and the reactor was shut down safely. The tsunami destroyed the emergency start system, caused the cooling system to fail, and eventually caused an explosion and leakage accident. Hundreds of thousands of people were forced to relocate, casting a shadow over the development of the global nuclear power industry.

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