Pool type lead-based fast reactor with labyrinth type flow channels

Abstract

The invention provides a pool type lead-based fast reactor with labyrinth type flow channels. The pool type lead-based fast reactor comprises a reactor container, a reactor top cover, a lower end socket, a reactor core mounting component, a reactor core, a control rod, a driving mechanism of the control rod, a cold-hot pool partition plate, a first auxiliary partition plate, a heat exchanger and adriving pump. The reactor container is hermetically connected with the reactor top cover and the lower end socket; the reactor core is mounted on a mounting position of the reactor core mounting component; the control rod and the driving mechanism thereof enter the reactor container and are connected with the top of the reactor core; the reactor container is divided into a hot pool and a cold pool which do not communicate with each other by the cold-hot pool partition plate; the first auxiliary partition plate is located outside the cold-hot pool partition plate and is a certain distance awayfrom the cold-hot pool partition plate; the heat exchanger penetrates through the hot pool and enters the cold pool to realize heat conduction; and the driving pump enters the cold pool to realize coolant circulation in the cold pool. According to the invention, the complexity of components in the reactor and the flow resistance of a primary loop coolant can be reduced, and the risk that tiny bubbles or water drops enter the reactor core when a heat transfer pipe of the heat exchanger is broken can be avoided.

Description

technical field [0001] The invention relates to the technical field of nuclear reactors, in particular to a pool-type lead-based fast reactor with a labyrinth flow channel. Background technique [0002] The use of nuclear power is a major breakthrough in the history of human energy utilization. Using the fission reaction of atomic nuclei, nuclear power plants can produce high energy output that is unmatched by all other traditional fossil energy sources, and these high energy outputs often only need to consume a small amount of nuclear fuel. This characteristic of low input and high output has made nuclear energy an important energy component in many countries in the world. However, while nuclear power has extremely high utilization value, its possible harm also makes people talk about nuclear power. [0003] In the process of using nuclear power, once the temperature of the reactor vessel in the pressurized water reactor rises rapidly, if it is not cooled in time and the he...

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Problems solved by technology

[0003] In the process of using nuclear power, once the temperature of the reactor vessel in the pressurized water reactor rises rapidly, if it is not cooled in time and the heat of the reactor vessel is exported, the temperature and pressure of the containment may increase, which will cause serious safety accidents. It will bring extremely serious nuclear pollution disasters to the environment around the nuclear power plant and even to all mankind, so it is necessary to further set up safety protection measures for the containment

[0004] In order to solve the above-mentioned problems, the application number is 201280077308.5 disclosed in the prior art, and the name is an invention patent of a nuclear reactor with liquid metal coolant. Increased the complexity of the internal components of the reactor, and also increased the flow resistance of the primary circuit coolant, resulting in higher power requirements for the drive pump

In the prior art, the application number is 200880117773.0, and the name is an invention patent of a nuclear reactor with a new concept fuel element, and the application number is 201510061189.X, and the name is a main loop cycle for a pool-type liquid heavy metal cooling reactor. The invention patent of the device, but in the design of the primary circuit flow channel of the two, there is a risk that when the heat transfer tube of the heat exchanger breaks, tiny bubbles or water droplets may enter the reactor core, which is very easy to introduce positive reactivity, resulting in super Power accident happens

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