单线双方向区间自动闭塞结合电路工程设计优化方案  

Optimization Scheme for Engineering Design of Automatic Block Combination Circuits in Single-track Bidirectional Sections

作　　者：叶慧敏 YE Huimin

机构地区：[1]中国铁路设计集团有限公司,天津300300

出　　处：《铁道通信信号》2024年第4期95-100,共6页Railway Signalling & Communication

基　　金：中国铁路设计集团有限公司科研课题(721843)。

摘　　要：在单线双方向四显示自动闭塞区间,计算机联锁控显终端界面同一进站口的接近/离去表示灯存在同时点红灯的情形,给行车指挥带来不便。根据车站运营维护单位的实际需求,在不改变计算机联锁软件的前提下,引入四线制方向电路中区间正方向继电器QZJ、区间反方向继电器QFJ条件,提出2种JGJ、LQJ励磁电路优化设计方案。从电路原理、实现效果、施工工作量等角度对2种方案进行比选,推荐采用QZJ/QFJ接点与GJF接点并联的优化方案。该优化方案中,JGJ、LQJ的继电器状态包含相应闭塞分区占用情况和区间实际运行方向双重含义,可实现计算机联锁控显终端按区间开通方向分别显示接近/离去表示灯,同时不影响JGJ、LQJ参与的其他继电电路,可为后续类似项目的工程设计提供参考。In a single-track bidirectional section operating with four-aspect automatic block systems,situations occur where both the approach and departure indicator lights on the computer based interlocking system’s control and display terminal show red simultaneously.This creates difficulties for traffic command operations.To meet the actual needs of station operation and maintenance teams,without altering the existing computer based interlocking software,by integrating the section forward direction relay QZJ and section reverse direction relay QFJ into the four-wire directional relay circuit,two optimization proposals for the JGJ and LQJ excitation circuits are put forward.After a comparison between the two proposals based on factors such as circuit principles,implementation effects,and construction workload,the parallel connection scheme of QZJ/QFJ and GJF contacts was recommended as the optimal design.In this optimized scheme,the statuses of the JGJ and LQJ relays encompass the dual purpose of indicating the occupancy of the corresponding block sections and the actual running direction of the section.It enables the control and display terminal of the computer based interlocking system to display approach and departure indicator lights accordingly,based on the operational direction of the section.This approach does not interfere with other relay circuits involving JGJ and LQJ and can serve as a reference for the engineering design of future similar projects.

关 键 词：计算机联锁 区间闭塞 行车指挥 单线双方向 自动闭塞结合电路 工程设计 

分 类 号：U284.3[交通运输工程—交通信息工程及控制] U284.4[交通运输工程—道路与铁道工程]