A16B-2203-0754
A16B-2203-0754
大部分仪表设备故障并不是无原无故的故障,故障都有先兆因素,有些故障是自身的,有些故障是外界影响的,常见的仪表故障现象主要有以下7种现象。
1、漏:泄漏是生产设备共性的问题。
(1)仪表设备管路震动 、热胀冷缩、外力、应力以及设备缺陷 ,都可导致仪表设备管路泄漏,此故障比较简单、在仪表故障设备故障率达30%以上,也是容易判断容易发现的故障,此故障基本上都可以解决。在影响生产运作中占比例比较高,只要仪表设备跟测量介质接触都有可能发生泄漏。
(2)在电气回路漏电现象也时有发生,电缆与桥架、电缆与设备、电缆与电缆之间,都可能发生漏电现象,此现象一般为不按规范放置电缆导致电缆皮破损,不按规范接线导致电缆与设备及接线盒 接地漏电现象。
2、堵:仪表设备取压管路中,系统中的杂质容易进入导压管中堵塞取压口,部分介质容易结晶堵塞取压孔,在冬天仪表管路也容易冻堵,堵现象一般多出现于冬天,或易结晶、污垢的被测量介质。此故障比较简单、在仪表故障设备故障率达20%以上,也是比较容易判断的一种故障,此故障基本上都可以解决。在影响生产过程中占比例紧次于泄漏故障,只要仪表设备跟测量介质接触都有可能发生堵现象。
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