DEVICE FOR GENERATING MICRO BUBBLE

摘要

PURPOSE: A micro bubble generating device is provided so that the water which is still alive in the main pump or the piping is eliminated after the operation completion and the contamination of the circulating water due to the residual water is prevented. CONSTITUTION: A micro bubble generator comprises a main pump(100), a self-priming pump(200), and inflow and discharge nozzles(300, 400), first, second, and fourth connection pipes(510, 520, 540), third connection pipe, air supply portion(600). Until pumping calms down from the pumping initial of the main pump, the self-priming pump pumps the water. The inlet nozzle flows in the water of cistern with the pumping force of the main pump or the self-priming pump. The discharge nozzle discharges the water passing through the main pump to the water tub. The first concatenated piping interlinks the inlet nozzle and main pump. The second connection pipe interlinks the inlet nozzle and self-priming pump. The third connection pipe interlinks the self-priming pump and the first concatenated piping. The fourth connection pipe interlinks the main pump and discharge nozzle, and supplies the air to the water which the air supply portion is flown to the main pump.