Dongyuan Company has the equipment design and manufacturing capacity of nuclear power plant decontamination system, and provides special equipment for nuclear power plant decontamination system, such as the main pump ultrasonic cleaning device, the ultrasonic oscillator is imported from Germany Cerontec high "Q" value piezoelectric crystal transducer, piezoelectric ceramic chip performance is more stable than the same industry chip, the frequency is infinitely close, and the accuracy is higher. Floatation in high temperature, high pressure, static, dynamic environment is reduced to z maximum, to ensure the frequency consistency of the transducer in a variety of harsh situations; And ensure that the electrical control part and the transducer match a high degree of harmony, stability is greatly enhanced; It breaks through the technical bottleneck of high failure rate of traditional cleaning machine. Ultrasonic control power supply using Germany "Siemens" high-power IGBT module; Strong decontamination effect is guaranteed.