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A structure for reducing mhd pressure drop in liquid cladding

A cladding, liquid technology, applied in the field of structure to reduce the pressure drop of liquid cladding MHD

Active Publication Date: 2020-10-23
SOUTHWESTERN INST OF PHYSICS
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] In view of the above-mentioned prior art, the purpose of the present invention is to provide a structure that reduces the pressure drop of the liquid cladding MHD, a structure that is easy to implement in engineering and can effectively reduce the pressure drop of the liquid cladding MHD, and solves the problem of the pressure drop of the liquid cladding MHD. drop problem

Method used

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  • A structure for reducing mhd pressure drop in liquid cladding
  • A structure for reducing mhd pressure drop in liquid cladding
  • A structure for reducing mhd pressure drop in liquid cladding

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Embodiment Construction

[0026] A structure for reducing the pressure drop of the liquid cladding MHD according to the present invention will be described in detail below with reference to the drawings and specific embodiments.

[0027] like figure 1 and figure 2 As shown, when the liquid metal inlet flow rate in the pipeline is low, the flow state in the pipeline is laminar flow, and the corresponding induced current distribution is symmetrical up and down (such as figure 1 shown), it is easy to form a consistent Lorentz force that hinders the forward flow of liquid metal, making the MHD pressure drop in the liquid cladding pipe obvious; when the disturbance metal strip is set on the pipe wall, the liquid metal in the pipe can be In the case of low inlet velocity, the flow is fully turbulent, and the induced current distribution is much more chaotic than that of laminar flow (such as figure 2 Shown), so that a consistent Lorentz force that hinders the forward flow of liquid metal cannot be formed...

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Abstract

The invention belongs to the fluid flow control technical field and relates to a structure for reducing the MHD pressure drop of a liquid cladding. According to the structure, strong disturbing metalstrips are mounted on the wall of a pipeline, so that liquid metal in the pipeline can be fully turbulent at a lower inlet flow rate, and the induced current distribution of the liquid metal will be more messy than that of laminar flow, so that a consistent lorentz force that hinders the forward flow of the liquid metal will not be formed, and therefore, the MHD pressure drop in the liquid cladding pipeline can be effectively reduced. The implementation method of the structure is easier to implement in engineering compared with other methods.

Description

technical field [0001] The invention belongs to the technical field of fluid flow control, and specifically relates to a structure for reducing the pressure drop of a liquid cladding MHD. Background technique [0002] Fusion reactor liquid cladding is a very advanced cladding form. It uses liquid metal for tritium breeding. Liquid metal is used as both a coolant and a breeding agent. Therefore, compared with solid cladding, its design is simpler, and tritium extraction is more convenient. Higher conversion rates. However, the movement of liquid metal in the strong magnetic field of the fusion reactor will produce Lorentz force that hinders its flow, so a very large MHD pressure drop is generated, and its pressure drop is usually 10 times that of ordinary hydraulic pressure drop. 4 How to reduce the very large MHD pressure drop in the liquid envelope has become a very critical issue in the process of its realization. [0003] Due to the very high neutron radiation damage an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21B1/11
CPCG21B1/11Y02E30/10
Inventor 张秀杰潘传杰许增裕
Owner SOUTHWESTERN INST OF PHYSICS
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