Control system for furnace cap fan of bell type furnace

The invention discloses a control system for a furnace cap fan of a bell type furnace. The control system comprises a motor control center (MCC) cabinet, a programmable logic controller (PLC) cabinet, a socket box, a cooling cap fan overload protection box and a heating cap fan overload protection box, wherein a socket is arranged in the socket box and comprises a socket power terminal and a socket control terminal, the MCC cabinet is connected with the PLC cabinet, the socket power terminal and the socket control terminal respectively, the cooling cap fan overload protection box is provided with a first plug, the heating cap fan overload protection box is provided with a second plug, and the first plug and the second plug can be inserted into the socket of the socket box. According to the control system for the furnace cap fan of the bell type furnace, an electrical control system is enabled to be simple in design, the utilization rate of electrical equipment is improved, the construction and maintenance are easy through reasonable allocation of resources, and the engineering cost is saved.