A high pressure vertical multi-stage pump with independent motor and pump shafts, an improvised coupling and simple mechanical-seal arrangement

摘要

A HIGH PRESSURE VERTICAL MULTI-STAGE PUMP WITH INDEPENDENT MOTOR AND PUMP SHAFTS, AN IMPROVISED COUPLING AND SIMPLE MECHANICAL SEAL ARRANGEMENT, wherein Split Coupling (B) and Mechanical Seal (D) arrangement is characterized in an independent Motor Shaft (Q) and Pump Shaft (E). Motor (A) is placed vertically above the Pump (T). Key (R) as a fastener is provided on Motor Shaft (Q), whereas Dowel Pin (S) as a locking mechanism is provided on the Pump Shaft (E). Key provided on motor shaft ensures better grip and transmission, whereas, combination of Key (R) on Motor Shaft (Q) and Dowel Pin (S) on the Pump Shaft (E) allows linear flexibility for assembling the unit. Mechanical seal (D) provided in such a combination using Collar (C) as the seal positioning arrangement effectively seals water leakage through shaft. Impeller-Diffuser set (I) is of Engineering Plastic, resulting in smooth operation, less vibration, saving power and cost.