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Fuel rod bundle two-phase flow fluid-solid coupling test loop

A fuel rod bundle and test loop technology, which is applied in the field of nuclear reactors, can solve problems such as the inability to measure the vibration caused by the fuel assembly rod bundle flow, and achieve the effects of improving test reliability and accuracy, convenient operation and simple structure

Active Publication Date: 2020-08-07
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the technical solution in this patent document can only test the velocity and pressure drop distribution inside the fuel assembly, and cannot measure the flow-induced vibration between the fuel assembly rods

Method used

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  • Fuel rod bundle two-phase flow fluid-solid coupling test loop
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  • Fuel rod bundle two-phase flow fluid-solid coupling test loop

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Embodiment Construction

[0047] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0048] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, rather than indicating or implying the referred device Or that an element m...

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Abstract

The invention provides a fuel rod bundle two-phase flow fluid-solid coupling test loop. The fuel rod bundle two-phase flow fluid-solid coupling test loop comprises a fuel rod bundle two-phase flow fluid-solid coupling test bed, a check valve, a flow meter, a first control valve, a circulating pump, an open water tank, a second control valve, an electromagnetic valve, a pressure gauge, a pressure reducing valve, a gas tank, a dryer, an air compressor, a first pipeline, a second pipeline and a third pipeline. One end of the first pipeline is connected with the open water tank, one end of the second pipeline is connected with the open water tank, one end of the third pipeline is connected with the air compressor, and the other ends of the first pipeline, the second pipeline and the third pipeline are connected with the fuel rod bundle two-phase flow fluid-solid coupling test bed. A second control valve is arranged on the first pipeline. A circulating pump, a first control valve and a flowmeter are arranged on the second pipeline. The third pipeline is provided with a drying machine, a gas tank, a pressure reducing valve, a pressure gauge, an electromagnetic valve and a check valve. According to the invention, the fluid force and the vibration state of the rod bundle can be tested while the flow state between the channels of the fuel rod bundle is tested.

Description

technical field [0001] The invention relates to the technical field of nuclear reactors, in particular to a fuel bundle two-phase flow fluid-solid coupling test loop. Background technique [0002] Fuel assembly design is the core work of reactor core design. When designing the fuel assembly structure, it is necessary to evaluate the influence of the flow structure between the fuel assemblies on the heat transfer performance of the fuel assembly. At the same time, it is also necessary to evaluate the single-phase and possible occurrence of Whether the flow-induced vibration of the fuel rod bundle caused by the two-phase flow is within a reasonable range to ensure the reliable operation of the fuel assembly. Based on the above requirements, the fuel bundle two-phase flow fluid-structure coupling test circuit must be designed to evaluate the flow-induced vibration of the fuel bundle. The traditional fuel bundle two-phase flow test bench focuses on the study of the two-phase fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/06G01M10/00G01H9/00
CPCG01H9/00G01M7/06G01M10/00
Inventor 王德忠许锐周文涛宋煜晨
Owner SHANGHAI JIAO TONG UNIV
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