Liquid collecting pipe structure of rotary jet pump

The utility model discloses a collector tube structure of a rotary jet pump, which is characterized in that an inlet flow channel of a collector tube is conical, the inlet flow channel is in smooth transition with an internal flow channel, the diameter of the initial inlet flow channel of the collector tube is d1, the machinable maximum diameter is d2, and the collector tube is in smooth transition from the inlet flow channel to an internal streamline by adopting a conical design. The diameter d1 of the inlet of the liquid collecting pipe is enlarged to d2 through machining or grinding, the requirements of liquid collecting pipes of various specifications can be met only by storing dies of one specification, the die cost is greatly saved, and the stock of the liquid collecting pipes is reduced. 本实用新型公开了一种旋喷泵集液管结构，所述集液管进口流道设置为锥形，所述进口流道与内部流道光滑过渡，所述集液管初始进口流道直径设置为d1，可加工的最大直径为d2，集液管从入口流道到内部流线采用锥形设计光滑过渡，通过加工或磨削将集液管入口直径d1扩大至d2，只需库存一种规格的模具就可以满足多种规格集液管的要求，大量节约模具成本，减少集液管库存量。