Disclosed is an online cleaning device of a
heat exchanger. The online cleaning device of the
heat exchanger comprises the
heat exchanger, a ball
injector and a rubber ball delivery pump, wherein an inner pipeline of the heat exchanger is of a U structure, the right side of the heat exchanger is provided with a water inlet
pipe orifice, the left side of the heat exchanger is provided with a water outlet
pipe orifice, the water outlet
pipe orifice is connected with the front end of a funneling ball collector through a pipeline, the rear end of the funneling ball collector is provided with a cooling water outlet, an inverted cone ball collection net is arranged in the funneling ball collector, a variable
diameter type ball conveyor is arranged at the
tail end of the inverted cone ball collection net, the variable
diameter type ball conveyor is connected with a ball
discharge pipe orifice, the ball
discharge pipe orifice of the funneling ball collector is connected with a ball feed pipe orifice of the rapid ball
injector through a
flange, and a ball collection valve is arranged on the pipeline of the funneling ball collector. The online cleaning device of the heat exchanger can integrate collection and injection of rubber balls, and greatly improves ball collection efficiency. Ball collection efficiency of a common rubber ball cleaning device ranges from 30% to 70%, and ball collection efficiency of the online cleaning device of the heat exchanger reaches 100%. Additionally, the online cleaning device of the heat exchanger achieves a circulation cleaning function, is simple to operate for cleaning the rubber balls, low in cleaning
energy consumption and short in cleaning period.