我公司的8号75t循环流化床锅炉,为防止断煤造成停炉,检修人员设计制做了煤仓料位报警器,原理见图1。当煤仓有煤时,A端被煤托起,B端因支点O的作用,不上挑,开关K不接通,不报警。当煤仓无煤或少煤时,A端靠自重下落,B上挑, My company’s 75t circulating fluidized bed boiler on the 8th, in order to prevent off-furnace caused by broken coal, maintenance personnel designed to make the bunker level alarm, the principle shown in Figure 1. When the coal bunker has coal, the A end is supported by the coal, and the B end is not on the pick due to the function of the fulcrum O, and the switch K is not connected and does not call the police. When coal bunker no coal or less coal, A end by weight fall, B pick,