A pressurized water replenishing device for a vertical circulating water tank

Abstract

The invention provides a pressurizing water replenishing device of a vertical circulation water tank. The pressurizing water replenishing device comprises an eddy-current confinement rod, eddy elimination teeth, an eddy crushing corn, a first vertical tube, a first inclined tube, a water storage tank, a second vertical tube, a piston, a sealing ring, a ballast, an air releasing valve, a water injection valve, a third vertical tube, a fourth vertical tube, a second inclined tube, a third inclined tube, a fourth inclined tube, a fifth inclined tube, a first guide groove, a second guide groove, a fifth vertical tube and a transverse tube. According to the pressurizing water replenishing device, a gravity force is exerted to the piston through the ballast, air inside the second vertical tube is compressed to generate pressure intensity, the pressure intensity is conducted to water inside the water storage tank and is further exerted to a circulation water tank through a pipeline, bubbles in the water tank are fed into the water storage tank through another pipeline and float upwards into the second vertical tube, and then pressurization, degassing and water replenishing to the circulation water tank are completed; and after the ballast is set up, the pressure intensity in the circulation water tank is kept constant, the piston can be moved up and down in the second vertical tube because of volume variation in the bubble floating and water replenishing process, and thus a good self-adaptive pressure intensity adjusting function is achieved.

Description

technical field [0001] The invention relates to a vertical circulating water tank, in particular to a pressurized water supply device for the vertical circulating water tank. Background technique [0002] The vertical circulating water tank is a device that drives the water flow through the internal propeller and can form a stable water flow at different speeds in the working section. It is widely used in ship model resistance analysis and hydrodynamic performance testing. In recent years, the use of circulating water tanks has also been carried out. Calibration of current gauges. When the propeller rotates and pushes the water, it will generate a certain pressure on the water, thereby compressing the water in the circulating water tank, causing the volume of water filled in the circulating water tank to decrease, and it is easy to be in the corner section of the circulating water tank (the first corner) segment, the fourth corner segment) to form a cavity, thereby generati...

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Problems solved by technology

[0005] In the experimental research on the performance of the vertical circulating water tank model (Xia Junpei, Journal of Zhenjiang Shipbuilding Institute, 1989), the vacuum degassing system was used to eliminate the air bubbles in the flow channel in the circulating water tank, so that the flow field performance was improved. Gas method, there must be gas and water separation equipment, and there is no problem of pressurization, water replenishment and constant pressure of the circulating water tank

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