High-power five cylinder plunger pump

Abstract

The present invention discloses a high-power five cylinder plunger pump. The high-power five cylinder plunger pump has a stroke of 10 inches, a cylinder spacing of 11.5 inches, and a braking power of 5000 HP. Beneficial effects: high power, large displacement; suitable for electric drive fracturing and turbine fracturing; an integral power end assembly or a split-type power end assembly could be selected according to specific operation conditions, thus better implementing the arrangement of fracturing units or fracturing vehicles; the dimension of the cylinder spacing ensures stable operations under a 5000 HP braking power with a long stroke.

1 . A five cylinder plunger pump, wherein the five cylinder plunger pump has a stroke of 10 inches for each plunger, a cylinder spacing of 11.5 inches, and a brake horsepower of 5000 HP; the five cylinder plunger pump can be applied in both fracturing operations with an electric motor as a power source and fracturing operations with a turbine engine as a power source. 
     
     
         2 . The five cylinder plunger pump according to  claim 1 , wherein the five cylinder plunger pump comprises a power end assembly, a hydraulic end assembly and a reduction gearbox assembly; the hydraulic end assembly and the reduction gearbox assembly are connected to the power end assembly respectively; the reduction gearbox assembly comprises a parallel reduction gearbox and a planetary reduction gearbox, one end of the planetary reduction gearbox is connected to the parallel reduction gearbox, the other end of the planetary reduction gearbox is connected to the power end assembly. 
     
     
         3 . The five cylinder plunger pump according to  claim 2 , wherein the reduction gearbox assembly has a reduction ratio of 12.2-12.5. 
     
     
         4 . The five cylinder plunger pump according to  claim 3 , wherein the parallel reduction gearbox has a reduction ratio of 2.1-2.5, the planetary reduction gearbox has a reduction ratio of 5-5.8. 
     
     
         5 . (canceled) 
     
     
         6 . (canceled) 
     
     
         7 . The five cylinder plunger pump according to  claim 2 , wherein the reduction gearbox assembly has a reduction ratio of 9.4-9.6. 
     
     
         8 . The five cylinder plunger pump according to  claim 7 , wherein the parallel reduction gearbox has a reduction ratio of 1.6-1.8, the planetary reduction gearbox has a reduction ratio of 5.3-6.3. 
     
     
         9 . (canceled) 
     
     
         10 . (canceled) 
     
     
         11 . The five cylinder plunger pump according to  claim 1 , wherein the reduction gearbox assembly is arranged on either of the left end or the right end of the power end assembly. 
     
     
         12 . (canceled) 
     
     
         13 . (canceled) 
     
     
         14 . The five cylinder plunger pump according to  claim 1 , wherein the power end assembly comprises a power end housing, a crosshead supporting case and a holding frame which are arranged successively; the power end housing and the crosshead supporting case can be arranged as a whole or independently.