Device for inhibiting hydraulic jump or oscillation phenomenon in built-in voltage stabilizer

Abstract

The invention aims to provide a device for inhibiting a hydraulic jump or oscillation phenomenon in a built-in voltage stabilizer. The device comprises a container body wall surface, a self-adaptive heterogeneous partition plate, an upper-layer fixed partition plate, a lower-layer fixed partition plate, a damping device and a fixing piece, and the damping device and the fixing piece are connected with the upper-layer fixed partition plate, the self-adaptive heterogeneous partition plate and the lower-layer fixed partition plate. The upper-layer fixed partition plate is located at the upper end of the self-adaptive heterogeneous partition plate, the lower-layer fixed partition plate is located at the lower end of the self-adaptive heterogeneous partition plate, and the upper-layer fixed partition plate, the self-adaptive heterogeneous partition plate and the lower-layer fixed partition plate are fixed to the inner ring of the wall face of the body through damping devices and fixing pieces. Hydraulic jump wave energy is absorbed, the wave reflection coefficient is reduced, the energy is flexibly absorbed instead of being reflected, self-adaption to the liquid level is achieved, the suppression device can achieve the hydraulic jump absorption effect under the condition that the water filling amount changes, and the ratio of hydraulic jump energy transmitted to the pressure stabilizer body is reduced.

Description

technical field [0001] The invention belongs to the design field of marine nuclear power devices, and in particular relates to a device for suppressing hydraulic jump or sloshing phenomenon in a built-in voltage stabilizer. Background technique [0002] The integrated small reactor adopts the technology of modular design, modular production and modular assembly, which has good safety characteristics and is widely used. Due to its small size and low initial investment risk, it is economically competitive. In addition, it can be used not only on land, but also on the sea, and the site adaptability is good. It can be used in countries and regions where the power demand is small but the power changes greatly, and the power grid infrastructure is relatively weak. It can also be used for power supply in remote areas, heating for ordinary residents and industrial production, power and energy supply for offshore oil exploration platforms, and seawater desalination. etc., has a ver...

AI Technical Summary

Problems solved by technology

The hydraulic jump phenomenon will cause three types of negative effects: first, it will cause the exposure of the electric heating rod or the submersion of the spray nozzle, which will threaten the reliability of the equipment operation; The circuit pressure control poses a threat. Third, the strong hydraulic jump will impact the internal components and wall measurement equipment, posing a threat to its safety and reliability.

The three will eventually lead to a reduction in the pressure safety of the primary circuit, a reduction in the reliability of the nuclear power plant, a reduction in the overall efficiency of the reactor system, and a reduction in the economy and safety of the entire ship or platform. Therefore, it is necessary to develop corresponding devices to suppress the hydraulic jump phenomenon. occur

[0004] Chinese patent CN106024074A proposes a nuclear power plant voltage stabilizer that suppresses liquid level sloshing, including the main body of the voltage stabilizer and a number of partition plates that block liquid sloshing. The partition plates are arranged in two ways, namely, horizontal multi-layer and circumferential multi-layer. The spacing is set, which is suitable for marine conditions. However, the bulkhead occupies a large space and the number of layouts is large, which will seriously affect the layout of various internal components in the voltage stabilizer. It is difficult to be practically applied to the integrated reactor built-in voltage stabilizer

[0005] Chinese patent CN206619397U proposes a new structure to suppress the sloshing phenomenon in the voltage stabilizer, including the upper spacer and the lower spacer inside the voltage stabilizer. The phenomenon is less likely to occur, but the complex spacers arranged in it also occupy a large space, which affects the layout of the original internal components in the voltage stabilizer, and the structure of the spacers is special, and may break when subjected to severe mechanical impact

[0006] Chinese patent CN211555481U proposes a new type of voltage stabilizer and its anti-sloshing device for suppressing sloshing phenomenon. At least one anti-sloshing device is installed at a height lower than the normal operating water level, which can effectively reduce the impact of sloshing on water level measurement, but each layer of anti-sloshing devices is hard-connected to avoid shocks, and the voltage stabilizer The medium water level is a variable value, and the effectiveness of the anti-sloshing device at a fixed height cannot be guaranteed under the condition of variable water level

[0007] In view of the above-mentioned patent or design, it is not suitable for the situation that there are many internal components of the integrated reactor built-in voltage stabilizer and all the designed devices are hard-connected. It is necessary to design an adaptive liquid level, flexible absorption of water jump energy, and Reliable device for flexible connection of walls

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