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2024-04-10
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作者：袁萍
事件描述
该索道高差 384 米，线路全长 1098 米，34 个吊厢，8 人单线循环式脱挂抱索器索道，载客量 2000 人/小时，运行速度 6 米/秒，2008 年 5 月正式对外运营，是景区内主要的交通工具。
索道早检完，试运行期间，在吊厢进入 G2 站到达侧抱索力检测装置区域时，抱索器预加压力会缓慢降低，无吊厢经过时预加压力保持相对平稳，运行一段时间后，预加压力值低于设定值 200daN 后，出现故障，故障代码：1658-到达侧预加压力低。
处理过程
1.抱索力预加压力测试值 1 号和 2 号是同时下降，基本可以排除，1 号和 2 号抱索器预加压力检测 PLC 模块、放大电路板，以及连接导线发生故障，因为两路信号同时发生相同的故障，可能性很小，所以从其它方面入手检查。
2.可能是压力传感器本身损坏或者受力螺杆松动引起故障发生。
3.检查抱索力检测装置压力传感器安装的位置，结果发现测试受力底板与受力螺杆接触面出现了凹坑面，并有轻微腐蚀现象，当吊厢经过时，因受力螺杆受力点有凹坑，受力位置向下发生移位，压力传感器检测到的压力发生变化，至传输到放大电路板的电压信号减小，导致预加压力低故障发生。
4.拆下抱索力检测装置压力传感器，对凹坑面的腐蚀点进行打磨，使其平整，清洁表面并喷涂防锈油漆。
5.安装好压力传感器，并重新按照预加压力调整步骤对压力传感器的位置进行校正。
6.调整完成后，启动索道试运行，故障消除，继续观察预加压力变化情况，后续无故障发生。
分析
设备安装位置处于近海，环境十分潮湿，空气中并带有盐分，长期处于这种恶劣的环境中，导致压力传感器测试点腐蚀，受力螺杆位置发生偏移，导致回馈信号发生变化，因为压力传感器的电压信号是毫伏级别，经过放大电路板放大，再到 PLC 模块，所以，压力传感器电压微小的变化，就会引起触摸屏上压力值较大的变化，从而导致了此故障的发生。
结论
经观察设备运行两周，无此故障发生，判定，此故障为抱索力检测装置压力传感器的受力螺杆，位置发生向下偏移导致故障发生。
来源：索道运维俱乐部
（版权归原作者或机构所有）
Severity: Notice
Message: Use of undefined constant APP_ID - assumed 'APP_ID'
Filename: database/translate.php
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Backtrace:
File: D:\database\translate.php
Line: 64
Function: _error_handler
File: D:\wwwroot\blfsy.com\application\views\news\knowledgePage.php
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Function: lang
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Function: require_once
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File: D:\database\translate.php
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Function: _error_handler
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Function: lang
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File: D:\database\translate.php
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Function: _error_handler
File: D:\wwwroot\blfsy.com\application\views\news\knowledgePage.php
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Function: lang
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Function: require_once
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File: D:\database\translate.php
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Function: _error_handler
File: D:\wwwroot\blfsy.com\application\views\news\knowledgePage.php
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File: D:\database\translate.php
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Function: _error_handler
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Function: lang
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Function: _error_handler
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