Backwashing device of plate heat exchanger

The invention relates to the technical field of plate heat exchangers, and particularly relates to a backwashing device of a plate heat exchanger. The backwashing device comprises a control console and at least two backwashing modules which are arranged near the plate heat exchanger, wherein the plate heat exchanger is fixedly connected with a corresponding medium inlet pipe and a corresponding medium outlet pipe at the positions corresponding to the input and output of each medium. The backwashing device of the plate heat exchanger has the beneficial effects that the designed backwashing device of the plate heat exchanger can be high in cleaning speed, and can be more frequently inserted into backwashing operation in the working period of the plate heat exchanger, so that the service life of equipment can be effectively prolonged, flushing liquid in the cleaning process can be repeatedly recycled, and resources are saved; and on the other hand, impurities obtained after cleaning can be collected by a separat