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Two-side cooling and evaporation coupling calculation method for liquid metal spiral tube steam generator

A steam generator and liquid metal technology, applied in design optimization/simulation, special data processing applications, etc., to achieve model independence and strong versatility

Active Publication Date: 2020-10-27
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, there is currently no research on the three-dimensional coupling of cooling and evaporation on both sides of the liquid metal helical steam generator, so this method will be of great significance to the future development of the liquid metal helical steam generator

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  • Two-side cooling and evaporation coupling calculation method for liquid metal spiral tube steam generator
  • Two-side cooling and evaporation coupling calculation method for liquid metal spiral tube steam generator
  • Two-side cooling and evaporation coupling calculation method for liquid metal spiral tube steam generator

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Embodiment Construction

[0063] The following combination image 3 Shown in the flowchart, the calculation process of a typical multi-head helical tube steam generator is taken as an example to further describe the present invention in detail. The structure of a typical multi-head helical tube steam generator is as follows figure 1 As shown, the fluid flow directions on the shell side and the tube side are as follows figure 2 shown.

[0064] The coupling calculation method for the evaporation process of the liquid metal helical tube steam generator of the present invention comprises the following steps:

[0065] Step 1: Establish the prototype model of the computational domain of the helical steam generator, including the geometric model of the liquid metal fluid domain on the shell side of the helical steam generator, the geometric model of the two-phase fluid domain on the tube side of the helical steam generator, and the solid structure of the helical tube bundle wall structure Domain geometry m...

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Abstract

The invention discloses a two-side cooling and evaporation coupling calculation method for a liquid metal spiral tube steam generator. The method comprises the following steps: establishing a spiral tube steam generator computational domain prototype geometric model; meshing each part in the spiral tube steam generator computational domain model to obtain a mesh model of each part, and setting boundary conditions; setting an interface of each part in the spiral pipe steam generator computational domain as a grid interface to realize splicing of grids of each part; importing the physical property of the liquid metal according to a turbulence Pr number correction relational expression; carrying out reasonable initialization and boundary condition correction; and carrying out steam evaporation, lead bismuth condensation and coupled flow heat transfer calculation of a pipe wall solid region in all regions including a solid region and a grid model range of a shell side fluid region and a pipe side fluid region of the spiral pipe steam generator.

Description

technical field [0001] The invention belongs to the technical field of thermal-hydraulic calculation of nuclear reactors, and in particular relates to a calculation method for coupling cooling and evaporation on both sides of a liquid metal helical tube steam generator. Background technique [0002] The steam generator is a crucial part of the nuclear reactor power system and an important hub for transferring the heat from the primary side of the reactor to the secondary side. Spiral tube steam generator is a commonly used form of steam generator, which is mainly composed of: spiral tube bundle, inner cylinder, and outer wall of the shell. The spiral tube bundles are arranged in layers according to different radial positions around the sleeve, and multiple heat exchange tubes are evenly arranged in each layer. In order to reduce the thermal deviation between the heat transfer tubes, it is usually necessary to ensure that the lengths of the spiral tubes are close. Due to it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F30/28
CPCG06F30/23G06F30/28
Inventor 王成龙杨宇鹏张大林苏光辉田文喜秋穗正
Owner XI AN JIAOTONG UNIV
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