Condenser water supply control method based on condenser pressure

The invention discloses a condenser water supply control method based on condenser pressure. The condenser water supply control method comprises the steps that S100, initial values of an upper threshold value and a lower threshold value of the condenser pressure and the pressure change allowance are obtained; s200, the ship navigational speed and the first condenser pressure are obtained; s300, whether the water supply mode is switched or not is judged; s400, in the first water supply mode, the pressure of a second condenser is obtained; s500, according to the pressure of the second condenser, the lower threshold value is updated according to a preset formula; and step S600, returning to the step S200. According to the technical scheme, switching of the water supply modes of the condenser can be achieved only by measuring the pressure of the condenser, the method is simple, reliable and easy to implement, the pressure threshold value of the condenser can be corrected in the ship navigation process so as to be