Method and device for simulating first cross-plant flood discharge scheme of nuclear power plant

Abstract

The invention discloses a method and device for simulating a first cross-plant flood discharge scheme of a nuclear power plant, and belongs to the technical field of nuclear power. The method comprises the steps of determining a three-dimensional space model after grid division according to a three-dimensional space model corresponding to a first cross-factory building, and further determining aninlet position and inflow flow of a fluid; determining at least one flood discharge scheme according to the entrance position, and further determining an exit position corresponding to each flood discharge scheme; according to the inlet position, the inflow flow and the outlet position corresponding to each flood discharge scheme, performing numerical simulation on the three-dimensional space model obtained after grid division through the multi-phase flow model, and simulating the maximum ponding height of the fluid at each position in the three-dimensional space model obtained after grid division. For each flood discharge scheme, the maximum accumulated water height of the fluid at each position in the first span workshop of the nuclear power plant can be simulated, and then the feasibility of each flood discharge scheme is determined.

Description

technical field [0001] The present application relates to the technical field of nuclear power, in particular to a method and device for simulating the flood discharge scheme of the first span of a nuclear power plant. Background technique [0002] The main building facilities of nuclear power plants are: reactor building, fuel building, nuclear auxiliary building, steam turbine building and control building. The plant between the first axis and the second axis in the steam turbine plant is called the first span plant, and the first span plant is closely adjacent to the auxiliary plant, nuclear auxiliary plant and steam turbine plant of the nuclear island of the nuclear power plant, which is a very important space . [0003] When the main water supply pipeline and the main steam pipeline across the first-span plant break, it will flood the important equipment in the first-span plant of the nuclear power plant, such as diesel engines, pumps, etc., thereby causing huge econom...

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Problems solved by technology

[0003] When the main water supply pipeline and the main steam pipeline across the first-span plant break, it will flood the important equipment in the first-span plant of the nuclear power plant, such as diesel engines, pumps, etc., thereby causing huge economic losses. The equipment is submerged by fluids, and technicians often design a variety of possible flood discharge schemes to make the fluid flowing into the first span of the building flow out, but these flood discharge schemes are only designed by technicians based on experience, and it is impossible to know each flood discharge scheme Feasibility

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