SU59726A1 - High Pressure Arc Converter - Google Patents

Description

Until now, the famous L1Arks high pressure arc transducers have been manufactured with an axial arc. In these converters, the arc ignited the iB positive half-period and burned along the axial gas flow. In this case, cylindrical nozzles were used.

In such converters, the problem of deionization of the arc gap is successfully resolved after the end of switching of this phase, and the dielectric strength of the gap is quickly restored.

However, due to the axial position of the arc, there is a great inconvenience in relation to the implementation of the vrashusha; it is on A01 above the spine of the arc electrodes, which leads to an increased burning of the electrodes. The restoration of electrodes that are restored as they burn down is associated with significant structural difficulties that have not yet been effectively cut. to sew.

The main difficulty lies in combining sufficient: radius and speed of rotation with the axial position of the arc in the nozzle.

The proposed system of an arc converter solves the main question, i.e., it provides a quick de-realization of the arc gap while simultaneously rotating the arc along the large surface of the electrodes. This is achieved by moving away from the axially oriented arc and switching to its radial orientation.

For this purpose, according to the invention, the electrodes are made in the form of concentric cylinders, between which are shielded electrodes, which are provided with concentric electrodes, which are provided with slots for the passage of the transducer arc.

Pa the attached drawing shows the principle of such a device. The numbers 1 and 2 designate the main electrodes of the arc converter, between which the arc AB is generated in the positive half-wave of the current. Electrode 1, which is more convenient to use as a cathode, is made in the form of a pipe, which, firstly, is capable of cooling with water, and secondly, can be easily moved axially up or down. Electrode 2 - the anode has the form of a ring, which can be made hollow spots for the supply of cooling water or oil. The current is diverted from the anode ring not directly, but through the "attenuator 3, located inside the hollow shielding electrode 4, and through pin 11.

The shielding electrode 4 of the anode, having the form of a hollow core, is provided with an annular gap on the inside. The shielding electrode 5 of the cathode is formed from two bodies of rotation, between which there is an annular gap opposite the gap of the shielding electrode 4 of the anode. The purpose of these shielding (anodic and cathodic) electrodes is to improve the direction of the gas flow, and therefore, to increase the deionization capacity of the converter.

The shielding electrodes must be made of magnetic material and may be cooled.

The ignition of the arc at the desired long-period is provided by the breakdown from the main transformer. eerie between gSvvniy electrode 1 and shielding electrode 5. The resulting arc of small power enters an intense gas flow and is blown into the slot towards electrode 2. Thanks to this, a breakdown of the main gap occurs and the arc begins to flow through it yes AB.

In connection with this, a coil 3 is excited and a shielding electrode 4 generates a rather large magnetic flux, which is closed through a vasdue gap of the annular gap, as shown by the power lines in the drawing.

In this way, the arc enters a strong magnetic field, under the Action of which it begins to radially rotate along the electrades.

As can be seen from the drawing, part of the magnetic flux, the transition to the shielding electrodes 5, closes through the air gap of these electrodes and thereby contributes to a more uniform distribution of the forces acting on the arc along its axis.

The proposed transducer system makes it possible to realize a strong magnetic field in the arc zone, due to which the arc can rotate along the electrodes with a very high speed.

This system also allows for a large diameter of the electrodes, in particular, the anode, and a rather convenient movement of the cathode as the tubes burn.

The tube of the central electrode 1 m) can be freely replaced with almost no disassembly of the rectifier chamber.

Between the shielding electrodes 5, and 4 circulates air. N. DRAIN F .., stabilize the arc in the center of the gap.

The distribution of gas flows F, coming from two sides through pipes 9, 9, must be strictly symmetrical, since otherwise the arc will be pressed to one side of the slot and the conditions of deionization will worsen. The exhaust gas passes into the screen of the anode and from there is discharged through one or several pipes 10 into the return pipeline and into the surrounding space.

The location of the straightener can be any - both vertical and horizontal. Insulating cylinders 7 separate the anode and cathode from each other.

The subject is invented and.

1. A high pressure arc transducer of the type of Marx with arc movement using a magnetic field, characterized in that, in order to obtain an arc directed in a direction radial with respect to the axis of the electrodes, the electrodes are made in the form of concentric cylinders, between which are shielded electrodes provided with slots for the passage of the transducer arc.

2. The form of the converter according to Ts. 1, that is, the coil used to create the magnetic field is located inside. three hollow shielding electro.d. covering the external main control: tro1d.

3. The form of conversion.