Long plunger ring seal forced closing vortex pump

The invention relates to the technical field of oil exploitation equipment, in particular to a long plunger ring seal forced closing vortex pump. The device comprises a plunger assembly and a pump cylinder assembly, wherein the plunger assembly is mounted in the pump cylinder assembly; the plunger assembly comprises an upper plunger forced closing valve, a plunger and a lower plunger valve, the pump cylinder assembly comprises a pump cylinder, annular sealing rings are installed in an upper annular sealing installation cavity and a lower annular sealing installation cavity respectively, the plunger is sleeved with the annular sealing rings, annular sealing springs are installed on the outer sides of the annular sealing rings, and the annular sealing springs apply pressure towards the plunger to the annular sealing rings. The mode that soft and hard sealing is combined between the pump cylinder and the plunger is achieved, clearance loss between the pump cylinder and the plunger can be automatically compensate