A fluid-solid coupling method for the opening process of the regulator pressure relief valve

A technology of fluid-solid coupling and pressure relief valve, which is applied in the fields of instrumentation, design optimization/simulation, electrical digital data processing, etc., and can solve the problems of safety, stability, and hidden dangers of nuclear power systems that generate severe tremors

Active Publication Date: 2022-03-22
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the regulator pressure relief valve is opened, the working fluid is high-temperature and high-pressure gas, which will cause severe tremors during the opening process, which will bring hidden dangers to the safety and stability of the nuclear power system

Method used

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  • A fluid-solid coupling method for the opening process of the regulator pressure relief valve
  • A fluid-solid coupling method for the opening process of the regulator pressure relief valve
  • A fluid-solid coupling method for the opening process of the regulator pressure relief valve

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Embodiment Construction

[0033] The following combination image 3 The flow chart shown in the figure takes the dynamic starting process of the pressure relief valve of a typical pressure regulator as an example to further describe the present invention in detail. In addition, the structure of the pressure relief valve of a typical pressure regulator is as follows: figure 1 shown. The regulator pressure relief valve opening process, such as figure 2 As shown, the black thick solid line is the solid domain of the pressure regulator pressure relief valve, the black thin solid line is the fluid domain of the pressure regulator pressure relief valve, the black thin dotted line is the closed state of the solid domain of the pressure regulator pressure relief valve, and the black The thick dotted line is the open state of the moving part of the solid domain of the regulator pressure relief valve.

[0034] The present invention relates to a fluid-solid coupling method for the opening process of a pressure...

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Abstract

The invention discloses a fluid-solid coupling method for the opening process of a pressure relief valve of a voltage stabilizer, which comprises the following steps: establishing a simplified geometric model of the safety valve of the voltage stabilizer; performing grids on the solid area and the fluid area of ​​the safety valve of the voltage stabilizer respectively Divide to obtain the grid model of each part; control the force state of the valve from closed to open through user-defined functions; calculate the steam flow characteristics within the scope of the regulator pressure relief valve fluid domain grid model, solid domain network The vibration behavior of solid mechanics is calculated within the scope of the lattice model; the two-way coupling calculation of the mechanical behavior and grid displacement at the same time step is realized by the fluid-solid coupling platform; the dynamic flow field inside the pressure relief valve of the regulator is realized by using the fluid-solid coupling platform Analysis and analysis of mechanical behavior of solid regions.

Description

technical field [0001] The invention belongs to the technical field of thermal hydraulic calculation of nuclear reactors, and in particular relates to a fluid-solid coupling method in the opening process of a pressure relief valve of a pressurizer. Background technique [0002] The primary circuit system of the pressurized water reactor nuclear power plant is a closed system. When the temperature of the coolant in the system changes and the volume fluctuates, it will cause a corresponding change in the system pressure. If the system pressure rises or exceeds the design pressure, it will cause the equipment to Damaged by overpressure. The safety valve of the voltage stabilizer is an important device in the primary circuit system. When the system pressure rises to a certain value, the safety valve of the voltage stabilizer opens to relieve the pressure of the system, thereby protecting the system from overpressure. [0003] When the pressure regulator pressure relief valve is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/28G06F30/23G06F119/14
CPCG06F30/28G06F30/23G06F2119/14
Inventor 王明军王嘉诚王莹杰田文喜秋穗正苏光辉
Owner XI AN JIAOTONG UNIV
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