Underwater high-voltage discharge bubble generation device

Abstract

The invention discloses an underwater high-voltage discharge bubble generation device which comprises a power supply module, a bubble generation circuit and a bubble generation metal wire, wherein the power supply module provides stable high-voltage direct current for the bubble generation circuit; the bubble generation circuit is connected with the bubble generation metal wire, and provides required discharge voltage for the bubble generation metal wire; the power supply module comprises a high-frequency signal generation device, a transformer, a high-frequency voltage doubling rectification circuit, a high-voltage direct current stabilizing circuit, a sampling circuit and a control loop; and the bubble generation circuit comprises a capacitance charge and discharge circuit and a charge and discharge switching control switch connected with the capacitance charge and discharge circuit. The device generates rapid water ionization and vaporization to generate very large bubbles by applying short-circuit discharge of the metal wire in a high-voltage underwater environment, can simulate an operating condition during practical explosion more actually, provides good assistance for researching the characteristics of underwater explosion bubbles, and disturbance and destroy of the underwater explosion bubbles to a ship, and is simple and convenient to operate, safe, reliable, high in repeatability, good in experiment effect and low in cost.

Description

technical field [0001] The invention relates to an underwater disturbance test device, in particular to an underwater high-voltage discharge bubble generating device. Background technique [0002] Bubbles produced by underwater explosions or underwater disturbances have an important impact on the safety of the hull. The bubbles produced by underwater explosions and the resulting powerful jets may cause damage to the hull. The violent destructive effect of the bubbles produced by the underwater explosion and the resulting jet is only cut off in the middle. Therefore, it is of great significance to study the bubbles produced by underwater explosions or underwater disturbances and their impact on the hull. [0003] Due to the destructiveness and high cost of underwater explosion experiments, and the strict control of explosives, it is unrealistic for ordinary researchers to conduct frequent full-scale, realistic explosive tests. Therefore, researchers at home and abroad are c...

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Problems solved by technology

[0007] (1) The device cannot achieve a stable linear DC output from 0 to (ultra) high voltage, the voltage is unstable, the experiment operation is troublesome, there is no capacitor discharge function after the experiment, and the safety protection measures are not enough;

[0008] (2) Capacitors are connected by multiple sets of capacitors to obtain capacitor banks, which will cause instability and many accidental events, and the experiment is unstable;

[0009] (3) The high-voltage switch cannot be operated at a short distance, and there are safety hazards (switch breakdown discharge) during operation, and there is no safety alarm system, which brings great psychological pressure to the equipment operator

[0010] Document 2 uses an electric spark ignition method as a bubble generating device, but this device cannot ionize water molecules to generate a large amount of gas like high-voltage electricity, so it cannot generate ideal large bubbles and cannot be used for simulation (ship or ship model) the real scene of underwater explosion bubbles

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