我厂2台4吨锅炉是利用极棒实现水位自动控制和高低水位报警的.在使用过程中,发现锅炉水位自动控制部分经常出现相同故障,水位控制失控,高灵敏继电器频繁动作,造成水泵接触器烧毁现象时有发生.对此,笔者通过对这种故障的多次处理,找出了有效的方法解决这个问题,确保水位自动控制装置可靠动作.1.故障现象 锅炉水位自动控制和高低水位报警装置电气原理图如图1所示.在此只讨论图中用于锅炉水位自动控制的高灵敏继电 I plant 2 sets of 4 tons of boiler is the use of great water level control and high and low water level alarm.In the course of use, found that the automatic control of boiler water level often appear the same part of the failure, the water level control out of control, high sensitive relay frequent action, resulting in pump contact Burned phenomena occur from time to time.In this regard, the author through this failure of multiple treatment, to find an effective way to solve this problem, to ensure reliable operation of the water level automatic control device. Fault phenomenon Boiler water level automatic control and high and low water level Alarm device electrical schematic diagram shown in Figure 1. Here only to discuss the figure for the automatic control of boiler water level sensitive relay