Experimental device and experimental method for cracking of heat transfer tube of steam generator

Abstract

The invention discloses an experimental device and an experimental method for cracking of a heat transfer tube of a steam generator, and relates to the technical field of lead-based stacks, in particular to a simulation device and a simulation method for cracking of the heat transfer tube of the steam generator. The simulation device comprises a reaction container and a water injection pipe, the reaction container is used for containing liquid lead or liquid lead bismuth, a mounting hole is formed in the top of the reaction container, the water injection pipe is in sealing fit with the mounting hole, the inner end of the water injection pipe is used for stretching below the liquid level in the reaction container, a water injection opening is formed in the position, close to the inner end, of the water injection pipe, and the water injection pipe is used for guiding high-pressure supercooled water to the water injection opening. The simulation method comprises the following steps: injecting liquid lead or liquid lead bismuth into a reaction container; and high-pressure supercooled water is injected below the liquid level of the reaction container from top to bottom. According to the simulation device and the simulation method for the breakage of the heat transfer tube of the steam generator, the physical process of a more real lead-based reactor SGTR accident can be simulated, and the reaction mechanism of liquid lead or liquid lead bismuth and water under the working condition of the lead-based reactor SGTR accident can be accurately revealed.

Description

technical field [0001] The invention relates to the technical field of lead-based stacks, in particular to a simulation device and a simulation method for the rupture of a heat transfer tube of a steam generator. Background technique [0002] Lead-based reactors mainly refer to fast neutron reactors that use liquid pure lead or lead-bismuth eutectic alloys (Lead Bismuth Eutectic, LBE) as coolants. The steam generators in lead-based reactors are the same as traditional water reactors. The key component responsible for heat transfer, the core heat is brought to the wall of the heat transfer tube through lead or lead-bismuth alloy, and passed to the water in the secondary circuit. The water is heated and evaporated to produce saturated steam to drive the steam turbine to generate electricity. In the design of conventional pool-type lead-based reactors, the heat transfer tube of the steam generator is an important pressure-bearing boundary and radiological protection boundary. L...

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Problems solved by technology

[0006] The object of the present invention is to provide a simulation device and simulation method for the rupture of the heat transfer tube of the steam generator in the lead-based reactor, so as to alleviate the existing problems of the device for simulating the rupture of the heat transfer tube of the steam generator in the lead-based reactor. The technical problem of being unable to simulate the physical process of the real lead-based reactor SGTR accident

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