Solid-liquid mixed fuel reactor core
A solid-liquid mixing and reactor technology, applied in the field of nuclear safety, can solve problems such as core melting, and achieve the effect of avoiding serious accidents and reducing the probability of serious accidents.
Active Publication Date: 2021-08-27
CHINA THREE GORGES UNIV
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Problems solved by technology
At present, when an accident occurs in an existing reactor (when the reactor cannot be shut down or the coolant is lost, etc.), the core will melt, resulting in a serious accident; especially after the Fukushima nuclear power accident, the safety of nuclear power is particularly prominent
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[0014] In order to make the objects and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0015] like figure 1 An embodiment of the present invention provides a solid-liquid mixed fuel reactor core, including a core active area, a lead-bismuth reflective layer outside the core active area, and two layers of stainless steel shielding layers outside the lead-bismuth reflective layer; Liquid fuel is used in the middle of the zone, and solid fuels with different enrichments are used in the peripheral parts; liquid fuel can also be arranged in the periphery or other positions in the core according to actual needs; and the control rods and regulating rods in the liquid fuel and solid fuel .
[0016] The above solid-liquid mixed fuel reac...
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The invention discloses a solid-liquid mixed fuel reactor core, which comprises a core active area, a lead-bismuth reflective layer outside the core active area, and two layers of stainless steel shielding layers outside the lead-bismuth reflective layer; the core active area is the most Liquid fuel is used in the middle, and solid fuel with different enrichment degrees is used in the peripheral part; the liquid fuel can also be arranged in the periphery or other positions in the core according to actual needs; and the liquid fuel and solid fuel are arranged with control rods and regulating rods . The invention arranges the liquid fuel assembly in the core of the traditional reactor, and when the core reaches a certain temperature after an accident, the reactor can reach the subcriticality through the discharge of the liquid fuel, and can use the pipeline after the discharge of the liquid fuel to take away part of the waste heat, thereby The probability of serious accidents is greatly reduced, and even the occurrence of serious accidents can be fundamentally avoided.
Description
technical field [0001] The invention relates to the field of nuclear safety, in particular to a solid-liquid mixed fuel reactor core. Background technique [0002] Nuclear energy is considered to be an effective way to solve the current worldwide energy crisis, environmental pollution and sustainable economic development. However, nuclear safety, nuclear fuel, nuclear energy economics, nuclear waste disposal and nuclear proliferation have become key constraints to the sustainable development of nuclear energy. At present, when an accident occurs in an existing reactor (when the reactor cannot be shut down or the coolant is lost, etc.), the core will melt, thereby causing a serious accident; especially after the Fukushima nuclear power accident, the safety of nuclear power is particularly prominent. At the Gen-IV International Forum in 2002, it has become a consensus to speed up the research and development of the fourth-generation nuclear energy system with higher safety pe...
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IPC IPC(8): G21C1/22G21C9/02
CPCG21C1/22G21C9/02Y02E30/30
Inventor 袁显宝刘芙蓉周建军张彬航
Owner CHINA THREE GORGES UNIV