Condenser cleaning device suitable for thermal power generating unit under non-stop condition

The invention discloses a condenser cleaning device suitable for a thermal power generating unit under a non-stop condition. The condenser cleaning device comprises a cleaning agent tank car, a cleaning fluid tank car, a water replenishing tank car, a neutralizing device, a passivating device and a PLC (programmable logic controller) control device, wherein a first pump set is arranged in the cleaning agent tank car, a second pump set is arranged in the cleaning fluid tank car, a third pump set is arranged in the water replenishing tank car, a condenser is connected with the cleaning fluid tank car through a third hose and connected with the water replenishing tank car through a waste gas pipe, the PLC control device electrically controls the cleaning agent tank car, the cleaning fluid tank car, the water replenishing tank car, the neutralizing device and the passivating device, a first concentration measuring device electrically connected with the PLC control device is arranged on a second hose, and a second