SU68234A1 - High Voltage Single Anode Mercury Rectifier - Google Patents

Description

The subject matter of this invention is the construction of a high-voltage single-electrode mercury rectifier. In the proposed rectifier, as in the already known, the internal volume contains an anodic region with a low density of mercury vapor and a cathode with a condensation chamber, and the discharge is performed sectioned.

The essence of the invention is that in order to prevent the occurrence of an arc in the back of the anode, the latter is made in the shape of a cup and the filter is located inside this cup so that the inner surface of the anode is working.

The invention is illustrated in the drawing, which shows a sketch of the proposed high-voltage single-electrode mercury rectifier.

Insulators 2, 3 H 4 separate the area A of the occiput of the anode 1 from the area B, which is used for the condensation of mercury vapor. Arc burning takes place inside insulators 2, 3, and 4. Filters 5, 6, 7, and 8, of which one can be made controlled, receive intermediate potentials by means of resistances or capacitances through leads 9, 10, 11, 12 from the anode circuit. the cathode, and thus the discharge gap, the anode-cathode is divided into a number of steps. The latter reduces the potential gradient near the anode 1 during the period of its non-burning and at the same time facilitates the ignition of the anode during its burning.

To reduce the density of mercury vapor in region A and prevent the formation of mercury condensate on surface 13, the latter does not have water cooling. All seals 14 must be made of aluminum rings.

68234-2. Condensation of mercury vapor is carried out on the surface of the housing 16, equipped with a water jacket 15. The mercury vapor is directed to the condensing surface using the screen 17.

The design of the cathode 18 provided with an ignition spray 19 is of a conventional design. The ignition anode 20 also serves as the excitation anode operating on direct current.

The rectifier is pumped through pipe 21 directly from the anode area A, which, if there are wide gaps around the anode, provides a high vacuum in the back of the anode.

In the proposed single-voltage high-voltage metallic mercury rectifier, the weaknesses associated with anode shielding are eliminated by using an anode head with an inner working surface, inserting a filter inside the anode and separating the anode occipital region from the discharge area. The same division of the rectifier body into two areas excludes the appearance of a cascade arc.

A special condensing chamber selected in the cathode region receives the entire flow of mercury vapor and thus ensures a low density of mercury vapor and a low vapor density in the anode region.

As can be seen from the sketch, the anode – cathode direction is distributed over several insulators, which facilitates their manufacture.

Subject invention

A high-voltage single-analog mercury rectifier, in the volume of which there are areas: anode with low density of mercury vapor and cathode with a condensation chamber, with a sectioned discharge, characterized in that in order to prevent the occurrence of an arc in the back of the anode, the anode is shaped like a cup and filter located inside the cup so that the inner surface of the anode is working.

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