| 摘要 |
<p>PURPOSE: To prevent a circulation pump on the sidewall of a tank from causing its performance deterioration and damage due to the generation of air bubbles and also its consequent noise and vibration by fitting an inclined plate obliquely downward from the inner surface of the sidewall of the tank in such a manner that the outlet opening of the pump is covered. CONSTITUTION: An inclined plate 102 is fitted extending downward from the inner surface of the sidewall of a tank 101 in such a manner that the upper side and the front of each outlet opening part 105 of pumps 114, 124 on the sidewall of the tank 101 are covered. Under this design, a main circulation flow N5 generated by a means 7 to supply air by arm rotation descends along the inner surface of the sidewall of the tank 101 near the inner surface, but is remote from the outlet opening 105 of the pump by the inclined plate 102, branching off as minor flows N6. Consequently, a large amount of air bubbles is prevented from entering into the pump, and thus the performance of the pump is prevented from deteriorating and the short pass is reduced.</p> |
