High-voltage electrode of double stepped forming line

FIELD: electricity.

SUBSTANCE: in high-voltage electrode of double stepped forming line, which contains two coaxial metal shells connected by means of end flange, and fixed in housing of double stepped forming line by means of discharge devices on one side and support dielectric elements on the other side, connection section of discharge devices to high-voltage electrode is made in the form of annular framework; openings are made in the framework and thin metal membranes through which discharge devices are connected to high-voltage electrode are fixed in them; at that, membranes are installed with possibility of their being broken away when discharge devices are destructed.

EFFECT: reduction of labour costs for repair of high-voltage electrode without removal of double stepped forming line of accelerator.

2 cl, 4 dwg

 

The invention relates to accelerator technology, namely the structural elements forming the line of high-current pulsed accelerators.

Known high-voltage electrode double speed forming lines (DSPL) accelerator OSTRICH-P (VSEGEI, Vframe and other "high-Current pulsed electron accelerators on the basis of the step forming lines", problems of atomic science and technology, Series "Nuclear physics investigations", 2001, No. 3, p.50-52), which is a stepped cylindrical shell and fixed in the housing DSFL using switching surge arresters and the supporting dielectric elements. Switching spark gap is rigidly fixed to the body DSFL and are attached to the sides of the high-voltage electrode movable collet connection.

The disadvantage of analogue is that when unauthorized destruction arresters, you must restore the entire electrode, as it consists of a single molded shell.

Closest to the present invention is a high voltage electrode double speed forming line accelerator OSTRICH-2 (Wesbsites, VSEGEI and other "Pulsed electron accelerator OSTRICH-2" in proc. scientific proceedings of "Physics and engineering of high densities of electromagnetic energy" edited Vdelete and Loneplacebo, Sarov, 2003, pp.96-101)containing decourselle metal shell, interconnected end flange. The endcap is connected to a threaded connection with the outer shell and welded to the inner sides of the high-voltage electrode.

The high-voltage electrode as well as in the analogue, fixed in the case of double speed forming lines with gaps on the one hand and the supporting dielectric elements on the other side.

Switching DFSL 20 is uniformly distributed in azimuth gas-filled spark gap. Grounded electrode arresters with control units rigidly mounted on the cylindrical part of the body DSFL. High-voltage electrodes of a spark gap connected to the shell of the high-voltage electrode DSFL through sliding electrical contacts collet type.

The disadvantage of the prototype is that the destruction of the switching surge arresters deformation of the high-voltage electrode and to repair it you need to extract it, you have to disassemble forming system (the complexity of the replacement of the high voltage electrode, due to its dismantling).

The problem solved by this invention was to develop the design of high-voltage electrode DSFL, allowing to carry out repairs without disassembly line, and if necessary, disassembly DSFL, re the Ontario high voltage electrode and replace any part of - to repair one of the parts.

The technical result is to reduce labor costs for the repair of high-voltage electrode without removing the entire DSFL.

The technical result is achieved by the fact that in the known high-voltage electrode double speed forming line comprising two coaxial metal shell connected end flange, and fixed in the case of double speed forming lines with gaps on the one hand and the supporting dielectric elements on the other hand, what is new is that the area of the connection of surge arresters to the high voltage electrode is made in the form of an annular frame, the frame is made of window vested in them, the metal thin membrane through which the arresters are connected to the high voltage electrode, the thickness, the linear dimensions of the membranes and the type of fastening in the Windows selected from conditions ensure their separation at fracture arrestors and sufficient mechanical strength to hold the weight of the high-voltage electrode.

The membrane is fixed in the Windows of the ring frame, for example, by means of contact welding.

This design of the high-voltage electrode prevents damage to thin (1...3 mm) welded cylindrical shell with unauthorized destruction of corpporation multichannel switch.

When the destruction of the housing of the arrester under excessive pressure of about 20 ATM., occurs after the gas in the interior volume of the housing DSFL, which leads to an increase in the pressure of the dielectric fluid in it to an invalid value in the area close proximity to the spark gap. When this fluid pressure is transmitted to the membrane, which leads to her separation from the ring frame and protects the electrode from the strain.

In this case, repair the high voltage electrode is to restore the membrane to the ring frame. Replacement of damaged membranes by contact welding through the process window in the end cap DSFL and through openings in the outer casing DFSL, which set forth the switching gap.

This work is carried out without dismantling the whole DSFL, which significantly reduces the time of repair of the high voltage electrode

In the proposed design of the linear dimensions of the membranes, the thickness of the membranes and their type of fixation were selected experimentally, based on the size of the high voltage electrode and the number of gaps, so that when the destruction of a spark gap membrane was detached from the ring frame without mechanical damage, as well as membrane must support the weight of the high-voltage electrode.

The number of contact points is cooking was selected on the basis of ensuring a reliable electrical contact between the membrane and the ring frame.

Figure 1 shows the mounting of the high-voltage electrode in the housing DSFL.

Figure 2 shows a General view of the high voltage electrode DSFL where:

a) the design of the Assembly; b) an integral part of the high voltage electrode;

Figure 3 shows the node connecting the arrester multichannel switch to the high-voltage electrode.

Structurally, the high-voltage electrode DSFL a team of construction, consisting of two coaxial metal shells 1 and 2, connected end flange 3, and fixed in the housing 4 dual speed forming lines with gaps 5 on the one hand and the supporting dielectric elements 6 on the other hand, the plot of accession arresters 5 to the high voltage electrode is made in the form of an annular frame 7, the frame is made of window vested in them, the metal thin membranes with 8 seats for dischargers multi-channel switch through the membranes of the arresters 5 connected to the high voltage electrode. For the connection of surge arresters 5 multi-channel switch with high voltage electrode applied collet connectors 9, providing a reliable electrical contact.

In the specific example of the high-voltage electrode is part of a high-current electron accelerator and structurally predstavljaet a composite design, the thickness of the shells is 2 mm, the linear dimensions and the thickness of the tear-off membrane (199*163*0,5) mm Internal volume DSFL filled with deionised water, so the body DSFL and integral part of the high voltage electrode is made of stainless steel 12X18H10T, dielectric support elements made in the form of rods of caprolon. Discharger 1 MB is part of the multi-channel switch DSFL and is a controlled gas-filled spark gap trigatron type. The membrane is fixed in the Windows of the ring frame using resistance welding.

DSFL is designed for accumulation of energy and the formation of the accelerating pulse. When charging DSFL from two generators pulse voltage to the operating voltage and triggering multi-channel switch (36 gas controlled spark gaps 5) to form a high-voltage pulse voltage may occur unauthorized destruction of the arresters 5, which causes a shock wave in a dielectric fluid that fills the inner cavity DSFL, in the failure zone and the separation membrane 8 from the ring frame 7 of the high-voltage electrode, which prevents it from warping.

1. The high-voltage electrode double speed forming line comprising two coaxial metal both the Aiki, United end flange, and fixed in the case of double speed forming lines with gaps on the one hand and the supporting dielectric elements on the other hand, characterized in that the area of the connection of surge arresters to the high voltage electrode is made in the form of an annular frame, the frame is made of window vested in them, the metal thin membrane through which the arresters are connected to the high voltage electrode, and the membrane is installed with the possibility of their separation at fracture arrestors.

2. The high-voltage electrode double speed forming line according to claim 1, characterized in that the membrane is fixed in the Windows of the ring frame, for example, by means of contact welding.



 

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