An automatic control device for boiler backup pumps, automatic control device of standby pump water level alarm contacts including boiler control instrument with high water level and low water level alarm contact, alarm contact, dangerous low water level of the boiler spare pump automatic control device comprises a high water level and low water level relay relay and standby pump switch contactor, composed of high high water level alarm relay contact trigger for the normally closed relay coil, high level relay contact is connected with the power supply through the high water level alarm; the low water level alarm low level relay contact trigger for relay coil, low level relay contact is connected with the power supply through the low water level alarm; parallel branch contact coil parallel standby pump switch contactor and relay contact, from low water level switch and standby pump contactor series After the connection with the power supply. Control the closing of the standby pump by relay. The utility model does not need personnel operation, saves human resources and protects the boiler equipment, and has simple structure.
【技术实现步骤摘要】
【技术保护点】
1.一种锅炉备用水泵自动控制装置,包括锅炉的水位控制仪表和备用水泵自动控制装置,锅炉的水位控制仪表包括高水位报警触头(a)、低水位报警触头(b)以及危低水位的报警触头(c),其特征在于:所述锅炉备用水泵自动控制装置包括高水位继电器(KM1)、低水位继电器(KM2)和备用水泵开关接触器(KM3),由高水位报警触头触发的高水位继电器为常闭继电器,高水位继电器的线圈通过高水位报警触头与电源连接;由低水位报警触头触发的低水位继电器为常开继电器,低水位继电器的线圈通过低水位报警触头与电源连接;备用水泵开关接触器的线圈与由低水位继电器(KM2)的触头、备用水泵开关接触器(KM3)的触头并联而成的并联支路串联后与电源连接。
【技术特征摘要】
【专利技术属性】
技术研发人员:李亚之,郑祖泰,腾宁杰,
申请(专利权)人:浙江康乐药业股份有限公司,
类型:实用新型
国别省市:33
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