Cleaning device for plate heat exchanger of nuclear power station

The utility model belongs to the technical field of nuclear power station equipment maintenance, and particularly relates to a nuclear power station plate heat exchanger cleaning device which comprises a moving trolley, a box body provided with an internal space, a high-pressure pump, a liquid tank and a purging device, and the high-pressure pump, the liquid tank and the purging device are all installed in the internal space. The box body is mounted on the moving trolley; the box body is further provided with a first connector communicated with an outlet of the high-pressure pump, an inlet of the high-pressure pump is communicated with the liquid tank, and the liquid tank is provided with a medicine adding opening. The first connector is detachably connected with a cleaning inlet of the plate heat exchanger to be cleaned. The box body is further provided with a second connector communicated with a purging device, and the purging device is detachably connected with a cleaning inlet of the plate heat exchanger