1、With double-casing structure and center line support, it is not necessary to dismantle outlet pipeline to fast dismantle and install components of rotor with special tools. Besides, with cone axial design of coupler end, it is convenient in equipment overhaul and maintenance.
2、Packaging-type mechanical seal is adopted according to seal design of API682 standard. It is convenient in installation and maintenance. The axial compression is free of influences of axial dimensions of any connecting pieces. It is not necessary to make adjustment.
3、With carbon steel bearing casing, fan cooling, and with new-type non-metal synchronic oil slinger, it is further sufficiently lubricated and pollution of lubricating oil is reduced. With special bearing gland cover, dual requirements of oil mist and bath lubrication can be satisfied.
4、By optimizing axial structure and selecting ball-ball and sliding-ball and sliding-thrust bearing forms, the optimal support can be provided for parts of rotor and the cost for bearing and support system can be maximally reduced.
5、Outer barrel is forged and processed. Pipe orifice is designed according to API standard twofold load. API standard chassis is adopted to ensure safe, stable and reliable operation.
6、Impeller is excessive interference fi and axial restraint, perturbation caused by assembling clearance when high-speed revolution can be eliminated.
7、With enhancement rigid stepped shaft (dead band can be used according to the requirement) optimized and designed according to hydraulic performance, power transmission requirement can be satisfied and rotor’s reliability can be enhanced and typical design scheme of API610 can be satisfied.
8、Impellers are back-to-back arranged with middle and throat bushing, optimal structural balancing axial force can be realized and cost for bearing parts can be reduced.
9、XXB5-standard, single-suction impeller, back-to-back arranged.
XBB5D-first-stage impeller double-suction structure enhances anti-cavitation capacity
and reduces suction specific speed.