Rectifier valve bank unit of extra-high voltage ground wire direct-current deicing device

Abstract

The invention discloses a rectifier valve bank unit of an extra-high voltage ground wire direct-current deicing device. The rectifier valve bank unit comprises a plurality of panel type rectifier tubes connected in series and a plurality of radiators connected with all the rectifier tubes in a crimping mode in sequence, wherein the radiators and the rectifier tubes are arranged alternately and perpendicularly connected in the crimping mode. The two ends of the radiators are connected together through epoxy supporting plates to meet the voltage withstanding requirement between the two adjacent radiators. The opposite sides of the crimping connection sides of the rectifier tubes of the first radiator and the last radiator are perpendicularly connected with epoxy threaded tubes, stainless steel press plates are perpendicularly connected to the outer ends of the epoxy threaded tubes, and the whole unit is tightly pressed through the epoxy threaded tubes and the stainless steel press plates to meet the requirement for press fitting force of all the rectifier tubes. The every two adjacent radiators are connected with one corresponding rectifier tube in the crimping mode, the total number of the radiators is only larger than the total number of the rectifier tubes by one, the structure is simple, and the size is small. The whole unit is structurally modularized, the assembling technology is simple and convenient, the production period is short, reliability is high after assembling is finished, and operation is safe and reliable.

Description

technical field [0001] The invention relates to a UHV ground line DC ice-melting device, in particular to a rectifier valve group unit structure of the UHV ground line DC ice-melting device. Background technique [0002] Since 2008, power grid freezing disasters have occurred frequently. In order to fight against the ice disaster of transmission lines, prevent the collapse of transmission lines, and ensure the normal production and life of the people, our country has successively developed various types of DC ice-melting devices for power transmission. Icing work for lines. [0003] The resistance of the UHV ground wire is large, and the DC deicing device requires a high deicing voltage. The bridge arm of the rectifier, its core component, needs to be connected in series with multiple rectifiers to ensure a sufficient deicing voltage output. At present, each rectifier tube in the valve block unit in which multiple rectifier tubes are connected in series is press-fitted by t...

AI Technical Summary

Problems solved by technology

At present, each rectifier tube in the valve block unit in which multiple rectifier tubes are connected in series is press-fitted by two radiators, which has the following defects: first, many radiators are needed, the cost is high, and the volume is large; second, the structure, assembly The process is extremely complicated and the production cycle is long; third, when one of the rectifier tubes is damaged, many components need to be removed, making maintenance difficult

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