Vertical high-power multi-stage centrifugal pump

The utility model belongs to the technical field of centrifugal pumps, and particularly relates to a vertical type high-power multi-stage centrifugal pump. The device comprises a motor bracket, and is characterized in that an acting motor is arranged on the motor bracket; a pump is also arranged in the motor bracket; and the acting motor is connected with the pump through an elastic diaphragm coupling part. According to the utility model, the stable placement and operation of the large-flow and high-lift vertical multi-stage pump and the matched motor thereof can be realized, the detachable design facilitates the maintenance of the pump, the mechanical seal can be replaced under the condition that the pump is not moved, the downtime is greatly reduced, and the use efficiency is improved. 本实用新型属于离心泵技术领域，具体涉及一种立式大功率多级离心泵。本实用新型,包括电机支架，其特征在于：所述电机支架上设置有作用电机；所述电机支架内还设置有泵；所述作用电机和泵通过弹性膜片联轴器部件连接。通过本实用新型，能够实现大流量、高扬程的立式多级泵及其配套电机的稳定放置及运行，可拆卸式的设计便于泵的检修，能在不移动泵的情况下更换机械密封，大大减少了停机时间，提升了使用效率。