Method for solving problem of poor shunting of track circuit

Abstract

The invention provides a method and a device for solving the problem of poor shunting of a track circuit, and aims to provide a device capable of sending direct current (DC) high voltage pulses in a circuit section of the original track to a track surface of the section of the track through an electronic switch by utilizing high voltage energy stored by an energy storage capacitor, so as to solve the problems in the prior art. When the track is occupied by a train, the DC high voltage pulses can effectively breaks down an iron oxide corrosion layer between a severely corroded steel track tread surface and wheel sets of a train; when the steel track tread surface corrosion layer is broken down, signal currents are well shunted, so that the occupation information of the circuit section of the track is accurately reflected. The DC high voltage pulses are isolated by a choke transformer when being in a regulated state, so that the voltage of the original alternating current (AC) signals cannot be influenced.

Description

technical field [0001] The invention belongs to railway signal devices, in particular to a method for solving the problem of poor branching of track circuits. Background technique [0002] In the prior art, CN201077466 discloses a high-voltage asymmetrical track circuit system powered by a 25Hz power supply, including a rail and a sending-end circuit and a receiving-end circuit connected to the rail. The sending-end circuit includes a sending-end choke transformer, and a sending-end circuit The secondary side coil of the choke transformer is connected to the output terminal of the code transmitter, and the input terminal of the code transmitter is connected to the power supply; the receiving circuit includes a receiving terminal choke transformer, and the secondary coil of the receiving terminal choke transformer is connected to the decoding The input end of the decoder, the output end of the decoder is connected to the receiving device; the primary side coils of the sending...

AI Technical Summary

Problems solved by technology

In the prior art, the poor resolution rate of the track circuit scheme and the monitoring box scheme is lower than 50%

The rail surface cladding and surfacing solution and the axle counting solution are high in cost, and the reliability of subsequent equipment is reduced

Both of them have defects such as high cost and difficult construction and implementation.

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