Fuel bundle two-phase flow fluid-solid coupling test loop
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A technology of fuel bundles and test loops, applied in the field of nuclear reactors, can solve problems such as the inability to measure the flow-induced vibration of fuel assembly bundles, and achieve the effects of improving test reliability and accuracy, simple structure, and convenient operation
Active Publication Date: 2021-07-13
SHANGHAI JIAOTONG UNIV
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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
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[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 elements must hav...
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Abstract
The present invention provides a fuel bundle two-phase flow fluid-solid coupling test circuit, comprising a fuel bundle two-phase flow fluid-solid coupling test bench, a check valve, a flow meter, a first control valve, a circulation pump, an open water tank, Second control valve, solenoid valve, pressure gauge, pressure reducing valve, air tank, dryer, air compressor, first pipeline, second pipeline and third pipeline; one end of the first pipeline is connected to an open water tank , one end of the second pipeline is connected to the open water tank, one end of the third pipeline is connected to the air compressor, and the other ends of the first pipeline, the second pipeline and the third pipeline are all connected to the fuel rod bundle two-phase fluid-solid Coupling test bench; the first pipeline is equipped with a second control valve; the second pipeline is equipped with a circulation pump, the first control valve, and a flow meter; the third pipeline is equipped with a dryer, an air tank, a pressure reducing valve, and a pressure gauge , solenoid valve, check valve. The invention can test the fluid force and vibration state of the fuel rod bundle while testing the flow state between the passages of the fuel rod bundle.
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...
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