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Liquid metal pump blade surface liquid metal flow velocity measurement experiment system

A technology for liquid metal, flow velocity measurement

Active Publication Date: 2020-12-15
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This system is not suitable for the measurement of the flow rate of liquid metal in moving structural equipment, and it is difficult to apply it to the continuously rotating pump blades. Under the external strong magnetic field, cutting the magnetic induction line when the blade rotates will affect the measurement, making the measurement difficult.

Method used

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  • Liquid metal pump blade surface liquid metal flow velocity measurement experiment system
  • Liquid metal pump blade surface liquid metal flow velocity measurement experiment system
  • Liquid metal pump blade surface liquid metal flow velocity measurement experiment system

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Embodiment Construction

[0030] Taking the main pump on the lead-bismuth alloy fast reactor circuit as an example, the embodiment of the present invention is further described in conjunction with the accompanying drawings.

[0031] Since each blade of the liquid metal pump has the same shape, by arranging probe arrays at different spatial positions of different pump blades and dispersing the probes on different pump blades, the lead-bismuth alloy on the entire wall surface of a pump blade can be measured. The relative velocity between the blades.

[0032] Such as figure 1 As shown, the liquid metal flow rate measurement experimental system at the surface of a liquid metal pump blade of the present invention is characterized in that it includes a magnetic field generation system arranged on the pump shaft 1-1 and the pump casing 1-2 of the liquid metal pump, and is arranged on The probe array 1-8 at the surface of the pump blade 1-9 of the liquid metal pump is connected through the conductive metal wi...

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Abstract

The invention discloses a liquid metal pump blade surface liquid metal flow velocity measurement experiment system, which comprises a magnetic field generation system arranged on a pump shaft and a pump shell of a liquid metal pump, and a probe array arranged on the surface of a pump blade of the liquid metal pump. The probe array is connected with an output signal line in a pump shaft through a conductive metal wire, the output signal line is connected with a potential acquisition system, the potential acquisition system is connected with a converter, and the converter outputs the relative flow velocity of liquid metal on the surface of the whole blade. The measuring system can accurately measure the relative flow velocity of the fluid on the liquid metal pump blade. The difficulty that the flow velocity of a liquid metal dynamic system is difficult to measure is overcome, and the method can be used for researching the corrosion rate of liquid metal to wall materials.

Description

technical field [0001] The invention belongs to the technical field of flow velocity measurement, and in particular relates to an experimental system for measuring the flow velocity of liquid metal on the surface of the vane of a liquid metal pump. Background technique [0002] Due to its good thermal conductivity and other advantages, liquid metal is used as a coolant material for reactors. At present, research on small modular fast reactors at home and abroad is mainly focused on the conceptual design of stationary reactors. Most of the primary circuits use natural circulation. The pressure difference required for natural circulation cannot meet the requirements of compact size for mobile operation of nuclear power reactors. In order to solve this problem, the main circulation pump is widely used to drive the circulation of the coolant in the primary circuit. The main circulation pump plays the role of pressurizing the coolant to meet the operating requirements of the equ...

Claims

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Application Information

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IPC IPC(8): G01P5/00G01P5/08
CPCG01P5/001G01P5/08
Inventor 李良星赵浩翔李翔宇王凯琳
Owner XI AN JIAOTONG UNIV