Multi-gun control device for gas station

The utility model discloses a multi-gun control device for a gas station. The multi-gun control device comprises a PLC (Programmable Logic Controller), a No.1 gun signal interface, a No.2 gun signal interface, a No.3 gun signal interface, a No.4 gun signal interface, an immersed pump control output interface, a pressure sensing interface, a liquid level sensing interface, a pump outlet pressure setting interface and a frequency converter. According to the utility model, the design is reasonable, whether the storage tank needs to be pressurized is determined by detecting the pressure of the storage tank, the frequency of the frequency converter of the immersed pump is immediately fixed to a numerical value at the moment and does not change temporarily after the precooling or small circulation signal of the gun is acquired by the PLC, and the frequency control can be automatically adjusted after the precooling or small circulation signal disappears; and a post-pumping overpressure alarm reset function is added