关于几处信号联锁电路问题的探讨  

Discussion on several signal interlocking circuit issues

作　　者：张乐君 ZHANG Lejun(Workshop and Electrical Testing Center of China Railway Jinan Bureau Group Co.,Ltd.,Jinan Shandong 250013,China)

机构地区：[1]中国铁路济南局集团有限公司工电检测所,山东济南250013

出　　处：《现代城市轨道交通》2024年第9期55-60,共6页Modern Urban Transit

摘　　要：文章通过典型案例深入探讨和分析在特殊场景下影响运输安全的几处联锁电路设计问题。该类问题主要包括:容许信号点灯电路在特殊情况下导致的货物列车停车问题、反向进站信号机设置并置通过信号机的正线出站发码电路在特殊情况下存在列车闯红灯问题以及机务段结合电路中的调车复示点灯电路在信号关闭后出现的闪白灯问题。进一步描述此类特殊场景下的电路动作时序,分别提出上述电路设计中存在缺陷的关键点,并针对该关键点依次给出电路的修改建议:一是修改容许信号点灯电路,以确保通过信号红灯断丝时轨道电路的发码通道不被切断;二是修改FMJ自闭电路,以确保在一离去占用时轨道电路的发码通道保持畅通;三是增加调车复示点灯电路对无岔区段的下一道岔区段的检查条件,以解决DXJ缓放过程中沟通白灯回路问题,从而为今后相关联锁电路的设计和改进提供参考与借鉴。Based on the corresponding typical cases,this article carries out in-depth discussion and analyze on several interlocking circuit design issues that affect transportation safety in special scenarios.Such issues mainly include:lighting circuit of permissive signal in special cases lead to freight train halting,the issue of train breaking through red light in the main line outbound coding circuit of the reverse inbound signaler setting juxtaposed through signaler under special circumstances,the shunting repeater signal circuit in the locomotive depot bond circuit has the issue of flashing white light after the signal is turned off.This article describes the timing of circuit actions in special scenarios,identifies key points with design defects in the aforementioned circuits,and provides suggestions for circuit modification to address these key points:the first is to modify the permissible signal lighting circuit to ensure that the track circuit sending code channel is not cut off when the block signal red light is broken,the second is to modify the FMJ selfclosing circuit to ensure that the track circuit sending channel is not cut off when the track is occupied,and the third is to increase the inspection conditions of shunting repeater lighting circuit to the next switch section of the switchless section solve the issue of communication white light circuit in the process of slow release of the DXJ,so as to provide reference and inspiration for the design improvement of relevant interlock circuit in the future.

关 键 词：铁路 联锁电路 容许信号 发码电路 特殊结合电路 改进措施 

分 类 号：U284.4[交通运输工程—交通信息工程及控制]