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Coupling Calculation Method of Cooling and Evaporation on Two Sides of 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 the effect of strong versatility and accurate calculation of data

Active Publication Date: 2021-10-19
XI AN JIAOTONG UNIV
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  • Summary
  • 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

Method used

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  • Coupling Calculation Method of Cooling and Evaporation on Two Sides of Liquid Metal Spiral Tube Steam Generator
  • Coupling Calculation Method of Cooling and Evaporation on Two Sides of Liquid Metal Spiral Tube Steam Generator
  • Coupling Calculation Method of Cooling and Evaporation on Two Sides of Liquid Metal Spiral Tube Steam Generator

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Embodiment Construction

[0063] The following combination image 3 The flow chart shown is, based on a typical multi-head spiral steam generator calculation process, a further detailed description of the present invention, a typical multi-head spiral steam generator structure figure 1 As shown, the shell side, the fluid flow direction of the tube side figure 2 Indicated.

[0064] The method of evaporation process coupling process of the liquid metal spiral pipe steam generator of the present invention includes the following steps:

[0065] Step 1: Establish a spiral steam generator calculation domain prototype model, including spiral steam generator shell side liquid metal fluid domain geometric model, spiral steam generator side two-phase flow field geometric model and spiral tube beam wall structure Domain geometric model, the specific steps are as follows:

[0066] Step 1-1: Use geometric model to establish software SolidWorks to establish a geometric model of the internal stream domain geometric model ...

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Abstract

The invention discloses a cooling and evaporation coupling calculation method on both sides of a liquid metal helical tube steam generator, which comprises the following steps: establishing a geometric model of the helical tube steam generator computational domain prototype; Partial meshing is carried out to obtain the mesh model of each part, and the boundary conditions are set; the splicing of the meshes of each part is realized by setting the interface of each part in the calculation domain of the spiral tube steam generator as the mesh interface; the liquid state The physical properties of the metal are imported according to the turbulent Pr number correction relationship; reasonable initialization and boundary condition correction are performed; steam evaporation is performed in all areas of the helical tube steam generator including: solid area and the grid model of the shell side and tube side fluid domain , lead-bismuth condensation, coupled flow and heat transfer calculations in the solid region of the tube wall.

Description

Technical field [0001] The present invention belongs to the technical field of nuclear hydraulic calculation of nuclear reactor, and is specifically involved in a method of cooling and evaporation coupling calculation of liquid metal spiral steam generator. Background technique [0002] The steam generator is a critical component of the nuclear reactor power system, and is an important hub that the heat of the reactor is transmitted to the secondary side. The spiral steam generator is a common form of steam generator, which is mainly composed of a spiral tube bundle, an inner tube, and an outer wall surface of the housing. The spiral tube bundle is disposed in a different radial position, and a plurality of heating tubes are uniformly arranged within each layer. In order to reduce the thermal deviation between the heat transfer tube, it is often necessary to ensure that the length of the spiral tube is close. The spiral steam generator increases the heat exchange area of ​​both s...

Claims

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Application Information

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Patent Type & Authority Patents(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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