Method for establishing a grid model of a steam generator dryer assembly with an inclined sealing plate

A technology of steam generator and grid model, which is applied in the direction of instrument, design optimization/simulation, calculation, etc., can solve the problems of difficult grid division, complex geometric structure at the dryer, large grid volume, etc., and achieves the versatility of the method. Strong, model-independent, and error-reducing effect

Active Publication Date: 2019-03-26
苏州同元软控信息技术有限公司
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Problems solved by technology

However, in the numerical simulation, there are still problems such as complex geometric structure at the dryer, difficulty in mesh division, and large amount of mesh.

Method used

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  • Method for establishing a grid model of a steam generator dryer assembly with an inclined sealing plate
  • Method for establishing a grid model of a steam generator dryer assembly with an inclined sealing plate
  • Method for establishing a grid model of a steam generator dryer assembly with an inclined sealing plate

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Embodiment Construction

[0034] The following combination Figure 7 The flow chart shown takes the advanced pressurized water reactor as an example to further describe the present invention in detail.

[0035] The invention provides a method for establishing a grid model of a steam generator dryer component with an inclined sealing plate, comprising the following steps:

[0036] Step 1: Establish a 3D geometric model of the dryer components in a typical PWR steam generator and obtain the internal fluid domain: the geometric modeling stage does not need to establish the geometry of the six inclined sealing plates, specifically, according to the actual design parameters, use solidworks The software builds each face that makes up the entity of the dryer component but does not include the faces that make up the sealing plate, and combines these faces into a body according to the relative positional relationship in the design drawings, so as to obtain the three-dimensional view of the dryer component witho...

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Abstract

The invention discloses a method for establishing a grid model of a steam generator dryer assembly with an inclined sealing plate, which comprises the following steps: establishing a dryer assembly geometry structure without a sealing plate; T establishing he fluid domain model of dryer assembly without inclined sealing plate. Establishing a three-dimensional cuboid topological block suitable forthe fluid domain model; setting The number and distribution of nodes on the topology block to form a structured hexahedral mesh model. Checking whether the coordinates of the center of each grid cellsatisfy the projection straight line equation of the oblique seal plate, and marking the grid cell of the oblique seal plate according to the projection straight line equation; Setting the marked gridcells as solid to form a dryer assembly grid model of an inclined sealing plate; The invention solves the problem of establishing the geometric model when the dryer assembly with the inclined sealingplate is mesh-depicted, the mesh quantity is large and the mesh quality is low when the unstructured mesh is adopted, and the invention also provides convenience for establishing a new mesh model bychanging the inclination angle of the dryer assembly.

Description

technical field [0001] The invention belongs to the technical field of method inventions, and in particular relates to a method for establishing a grid model of a steam generator dryer component with an inclined sealing plate. Background technique [0002] The steam generator is an important large-scale heat exchange equipment in the nuclear power plant system, which can realize the energy exchange between the primary circuit and the secondary circuit. In the steam generator, saturated steam is generated from the heat transfer tube bundle area, but due to the breakage of the liquid film at the interface between the phases and other reasons, the saturated steam will entrain a certain amount of liquid droplets. These droplets will flow upward with the saturated steam through the stages of steam-water separation to the outlet and enter the secondary circuit. [0003] After the fluid working medium is generated from the heat transfer tube bundle area, it first enters the primar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 王明军房迪田文喜苏光辉秋穗正
Owner 苏州同元软控信息技术有限公司
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