专用线DX3型道口电路设计方案分析与运用

Analysis and Application of Design Scheme for DX3 Crossing Circuit of Industrial Siding

沈阳东站与八家子(电厂)专用线间有3个道口,每个道口与车站的相对位置和联锁关系均不相同。根据专用线上道口接近通知点与车站、区间的位置关系,有道口上下行通知点均在站内、分别在站内和区间、均在区间3种情况。根据各道口的现场实际情况、运营要求和站内联锁设备位置等,详细计算专用线上道口的接近通知时间和接近通知距离,结合站内联锁条件,分析道口接近点的联锁驱动逻辑和道口的报警时机。根据分析计算结果,基于既有DX3定型道口电路,总结设计车站与专用线间各种场景下的道口报警电路,并分析道口电路的动作逻辑等。上述道口电路已应用于沈白铁路沈阳东站,现场反映使用情况良好,可为以后类似场景的道口电路提供参考。

There are three crossings between Shenyang East Railway Station and the Bajiazi(Power Plant)industrial siding.The relative position and interlocking relationship between each crossing and the station are different.According to the position relationship between the approaching notification points on industrial siding crossing and the station and the section,there are three circumstances,i.e.,the up and down crossing notification points are both located in the station,in the section,or one in the station and the other in the section.Based on the actual on-site conditions,operation requirements and location of interlocking equipment in station of each crossing,the approaching notification time and approaching notification distance of the crossings on the industrial siding are calculated in detail,combined with the interlocking conditions in the station,the interlocking drive logic of the approaching notification points and the alarm time of the crossing are analyzed.Based on the existing approved DX3 crossing circuit,the crossing alarm circuit in various scenarios between the station and the industrial siding is summarized and designed,and the action logic of the crossing circuit is analyzed.The above crossing circuit has been applied to Shenyang East Railway Station of Shenyang-Baihe Railway,and the use condition is good on site,which will provide a reference for the crossing circuit in future similar scenario.