A visualization experiment device and method of narrow slit channel under the condition of six degrees of freedom movement

Abstract

A device and method for a visualization experiment of a narrow slit channel under six-degree-of-freedom motion conditions. The system includes a six-degree-of-freedom motion simulation platform, which consists of a serpentine preheater, a three-sided visualization experiment section, a casing condenser, a pressurized circulation pump, The main circulation circuit composed of voltage stabilizer and related equipment, the cooling water system composed of casing condenser, plate heat exchanger, cooling tower, cooling fan, cooling water tank and related equipment, DC power supply, low-voltage power controller , an electric heating system composed of transformers, a bubble monitoring system composed of two high-speed cameras, a PIV measurement system, and an electric servo module; the present invention also provides an experimental method for the system; the present invention can satisfy six degrees of freedom motion conditions, The study of bubble dynamics in narrow slit channels with different flow modes requires that bubbles can be monitored from different angles at the same time and three-dimensional imaging.

Description

technical field [0001] The invention belongs to the technical field of experimental research on performance verification of nuclear power equipment under motion conditions, and in particular relates to a visualization experimental device and method for a narrow slit channel under motion conditions of six degrees of freedom. Background technique [0002] Ships and nuclear power platforms at sea are affected by wind and waves, and the hull will produce six degrees of freedom, including tilt, sway, and translation, and their coupling motions. Sea motion conditions introduce additional inertial forces to the reactor coolant system, complicating the flow and heat transfer characteristics of the coolant within the loop. [0003] Offshore nuclear power systems are often limited by space. Aiming at the problems of larger volume, more consumables, and lower driving force of the natural circulation system, engineering has increasingly paid attention to the use of rectangular passages ...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a visual experimental device for narrow slit channels under six-degree-of-freedom motion conditions in view of the fact that the above-mentioned experimental device or experimental system is not applicable or does not meet the requirements of the nuclear engineering field for experimental research on the performance verification of nuclear power equipment under motion conditions. and method, the experimental device of the present invention can realize the motion of six degrees of freedom and the simulation of coupling motion, and at the same time, the three surfaces of the experimental section have visualization windows, which can realize three-dimensional imaging of bubbles, and can carry out six degrees of freedom under the condition of motion Study on Dynamic Characteristics of Natural Circulation Bubbles

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