High -efficient double suction centrifugal pump structure

The utility model provides a high -efficient double suction centrifugal pump structure, belongs to spiral case double suction centrifugal pump technical field. The sealed box top of this centrifugal pump is equipped with the pump cover, the below is equipped with the pump body, both ends are equipped with the housing plate, a bearing body is still respectively connected at the both ends of sealed box, the pump shaft passes sealed box, the both ends of pump shaft are supported by single row radial thrust ball bearing and the cylindrical roller bearing that is arranged in two bearing bodies respectively, impeller and pump shaft adoption key -type connection, respectively be equipped with an axle sleeve and dustproof dish on the pump shaft of impeller both sides, two impeller rings set up the both sides at the impeller respectively, the impeller ring is compressed tightly between the pump cover and the pump body. This centrifugal pump adopts the interior closed structure of external -open, and the change that si