Fracturing Pump

Abstract

The invention discloses a fracturing pump, comprising a cooling device and a control device, wherein a motor is connected on an shaft of the fracturing pump, the cooling device comprises an air-cooled device for cooling a rotor of the motor and a water-cooled device for cooling a stator of the motor, and the control device is connected with the motor and the cooling device, respectively. The fracturing pump in the invention adopts a structure directly driven by the motor, thus breaking the form of a transmission structure of a diesel engine of the conventional fracturing pump added with a transmission tank, simplifying the structure of the entire fracturing pump, reducing the apparatus mounted on a fracturing car, decreasing failure rate of the apparatus, and becoming more safe and reliable.

1 - 10 . (canceled) 
     
     
         11 . A fracturing pump comprising a cooling device and a control device, wherein:
 a pump motor is coupled on a shaft of said fracturing pump,   said cooling device comprises an air-cooled device for cooling a rotor of said pump motor and a water-cooled device for cooling a stator of said pump motor, and   said control device is coupled with said pump motor and said cooling device, respectively.   
     
     
         12 . A fracturing pump of  claim 11 , wherein said cooling device is mounted between said two fracturing pumps. 
     
     
         13 . A fracturing pump of  claim 11 , wherein said pump motor is controlled by a middle-voltage numerical control frequency converter. 
     
     
         14 . A fracturing pump of  claim 12 , wherein said pump motor is controlled by a middle-voltage numerical control frequency converter. 
     
     
         15 . A fracturing pump of  claim 13 , wherein a temperature sensor and a pressure sensor are mounted on said fracturing pump; said temperature sensor, said pressure sensor and said frequency converter are connected to a PLC (Programmable Logic Controller) via a field bus cable; and said PLC is connected with a man-machine input device. 
     
     
         16 . A fracturing pump of  claim 14 , wherein a temperature sensor and a pressure sensor are mounted on said fracturing pump; said temperature sensor, said pressure sensor and said frequency converter are connected to a PLC (Programmable Logic Controller) via a field bus cable; and said PLC is connected with a man-machine input device. 
     
     
         17 . A fracturing pump of  claim 15 , wherein said field bus is Profibus. 
     
     
         18 . A fracturing pump of  claim 16 , wherein said field bus is Profibus 
     
     
         19 . A fracturing pump of  claim 17 , wherein a monitoring device is connected to a communication interface of said Profibus; said monitoring device and said communication interface of said Profibus are connected remotely via an Ethernet network; a distribution-type I/O device is communicated with said PLC control layer for information transmission to a measuring car PLC; and said car PLC is communicated with a monitoring layer via said field bus. 
     
     
         20 . A fracturing pump of  claim 18 , wherein a monitoring device is connected to a communication interface of said Profibus; said monitoring device and said communication interface of said Profibus are connected remotely via an Ethernet network; a distribution-type I/O device is communicated with said PLC control layer for information transmission to a measuring car PLC; and said car PLC is communicated with a monitoring layer via said field bus. 
     
     
         21 . A fracturing pump of  claim 19 , wherein said man-machine input device is an industrial touch screen. 
     
     
         22 . A fracturing pump of  claim 20 , wherein said man-machine input device is an industrial touch screen. 
     
     
         23 . A fracturing pump of  claim 11 , wherein said air-cooled device comprises an air blower; an air outlet of said air blower is connected with an inner part of said pump motor; a radial fan is also mounted on a casing of said pump motor; and said radial fan draws air out of said inner part of said pump motor. 
     
     
         24 . A fracturing pump of  claim 12 , wherein said air-cooled device comprises an air blower; an air outlet of said air blower is connected with an inner part of said pump motor; a radial fan is also mounted on a casing of said pump motor; and said radial fan draws air out of said inner part of said pump motor. 
     
     
         25 . A fracturing pump of  claim 11 , wherein said water-cooled device comprises a water pump; a water inlet of said water pump is connected with a water tank; a water outlet thereof is connected with a motor water jacket; said water jacket is provided with an S-shaped passage; said water outlet is connected with a heat sink; and said water outlet is connected with said water tank. 
     
     
         26 . A fracturing pump of  claim 12 , wherein said water-cooled device comprises a water pump; a water inlet of said water pump is connected with a water tank; a water outlet thereof is connected with a motor water jacket; said water jacket is provided with an S-shaped passage; said water outlet is connected with a heat sink; and said water outlet is connected with said water tank. 
     
     
         27 . A fracturing pump of  claim 25 , wherein a drainage port is also provided for said water jacket. 
     
     
         28 . A fracturing pump of  claim 26 , wherein a drainage port is also provided for said water jacket.