Boiler ash remover based on combined flow

A boiler ash remover based on a combined flow, comprising a frequency-adjustable acoustic flow generator comprising an air flow inlet, a single-moving-coil assembly, a single magnet, and an air flow outlet,

• a fixing bracket,
• a compressed air source,
• an adjustable air spray pipe,
• an acoustic-jet combined transmission tube, and
• an acoustic jet intelligent control system comprising a three-way air-source electric-control valve, scale measurement and control sensors, and a signal link of the acoustic jet intelligent control system comprising at least signal components of the scale measurement and control sensors, a scale measurement and control signal processor, an acoustic-jet balance signal modulator, and the three-way air-source electric-control valve that are sequentially in signal connection,
• wherein the compressed air source is connected to an inlet end of the three-way air-source electric-control valve, an outlet end of the three-way air-source electric-control valve is connected to the frequency-adjustable acoustic flow generator and an air source inlet end of the adjustable air spray pipe respectively, an acoustic flow outlet end of the frequency-adjustable acoustic flow generator is connected to an inlet end of the acoustic-jet combined transmission tube, an outlet end of the acoustic-jet combined transmission tube and a jet outlet end of the adjustable air spray pipe are on a same side of an air preheater by means of the fixing bracket, the area of an acoustic flow transmission orifice at the outlet end of the acoustic-jet combined transmission tube covers that of a jet injection orifice at the jet outlet end of the adjustable air spray pipe, the acoustic jet intelligent control system is connected to an electric control device of the three-way air-source electric-control valve and the scale measurement and control sensors respectively, and the scale measurement and control sensors are distributed on the air preheater,
• wherein an acoustic flow emitted by the frequency-adjustable acoustic flow generator and a jet emitted by the adjustable air spray pipe merge into a combined flow, and the acoustic flow, the jet emitted by the adjustable air spray pipe and the combined flow are in a same direction,
• wherein the adjustable air spray pipe is an adjustable air spray pipe, an outlet end of the adjustable air spray pipe is a conical air jet nozzle with air outlet holes, a number of the air outlet holes of the conical air jet nozzle is 4 to 12, a diameter of each of the air outlet hole is 3 mm to 6 mm, and an operating pressure of an air source of the adjustable air spray pipe is 0.1 to 0.5 MPa.