SU319292A1 - - Google Patents

Description

This invention relates to a technique for producing POWERFUL high voltage discharges in a liquid.

A known method of initiating a discharge gap is an electro-hydraulic setting unit, where electrolytes or highly conductive liquids (for example, seawater) are used as the working medium. To increase power and efficiency. electrical discharge in a liquid and reduction of accumulator losses for predischarge processes, the discharge channel is initiated by a metal wire or a jet of liquid.

When initiating with a liquid according to a well-known scheme, the integrity of the liquid orbits is maintained only within 30-50 mm, and then, due to the large resistance of the main (working) fluid, it is destroyed and cannot be used as initiator in sections exceeding G50-200 mm. At the same time, for high power electrohydraulic installations, according to the conditions for matching the discharge circuit, a working gap of up to 250 mm is necessary.

The purpose of the invention is to preserve the integrity of the jet of initiating fluid throughout the working gap, the length of which reaches 500 mm. It is achieved by the fact that around the jet the idiating fluid creates an associated flow of the working fluid supplied from a radial-gap nozzle located coaxially relative to the nozzle supplying the initiating fluid.

The drawing shows the implementation of the proposed method.

From the annular slit nozzle under pressure serves the working fluid 1, which forms an annular co-current 2 from electrode 3 to the electrode 4. Then through the central nozzle of the electrode 3 serves a jet of initiating fluid b, which, entrained by the blade of the working fluid 2, reaches the electrode 4. thus closing the gap of the external circuit 6.

Subject invention

The method of initiating a discharge gap of an electrohydraulic unit with a liquid initiator feed, characterized in that, in order to effectively close discharge gaps of increased length, a radial-slit working fluid flow is generated between the closure electrodes, along the central longitudinal axis of which a jet of a liquid initiator is fed, and the delay in the execution of these two successive operations is chosen such that a radial-slit working fluid flow is formed prior to jet injection of initiating fluid.

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