PUMPING UNIT Russian patent published in 2005 - IPC

FIELD: mechanical engineering; pumps.

SUBSTANCE: invention relates to design units of vertical vane pumps and it can be in nuclear power stations in main circulating pumping units of primary circuit of coolant in nuclear power plants. All rotary elements of end seals in pumping unit are installed on one carrying bushing. Description of detachable connections of carrying bushing and pump shaft, carrying bushing and power elements of sealing unit, power and processing elements of sealing unit and form of compensating elements (to be finished at assembling) in sealing unit and axial bearing is presented in invention. Invention is aimed at prevention of axial displacements of elements and units of pump leading to violation of standard configuration of end face seal unit and axial bearing in process of assembling of draw-out part of pump at operation of circulating pumping units on nuclear power stations.

EFFECT: improved reliability in operation.

7 cl, 5 dwg