US 12,326,073 B2
Power system and fracturing device
Jianwei Wang, Shandong (CN); Xiaolei Ji, Shandong (CN); and Peng Zhang, Shandong (CN)
Assigned to Yantai Jereh Petroleum Equipment & Technologies Co., Ltd., Yantai (CN)
Filed by YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD., Shandong (CN)
Filed on Apr. 4, 2023, as Appl. No. 18/295,611.
Application 18/295,611 is a continuation of application No. PCT/CN2022/098238, filed on Jun. 10, 2022.
Prior Publication US 2023/0399929 A1, Dec. 14, 2023
Int. Cl. E21B 43/26 (2006.01); F16N 25/00 (2006.01); F15B 1/26 (2006.01)
CPC E21B 43/2607 (2020.05) [F16N 25/00 (2013.01); F15B 1/26 (2013.01); F15B 2211/20515 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/3138 (2013.01); F15B 2211/327 (2013.01); F15B 2211/7142 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A power system, comprising:
an oil tank;
a reduction gearbox, the reduction gearbox provided with a lubricating system, the lubricating system being communicated with the oil tank; and
a hydraulic system comprising at least one hydraulic actuating member, which comprises a motor configured to connect with an engine of a fracturing device, the at least one hydraulic actuating member being communicated with the oil tank;
a first hydraulic pump, an inlet of the first hydraulic pump being communicated with the oil tank; and
a switching part, an outlet of the first hydraulic pump being communicated with an inlet end of the lubricating system through the switching part, the outlet of the first hydraulic pump being communicated with an inlet of the motor through the switching part, the switching part having a first communication state that connects the outlet of the first hydraulic pump with the inlet end of the lubricating system and disconnects the outlet of the first hydraulic pump from the inlet of the motor, and a second communication state that disconnects the outlet of the first hydraulic pump from the inlet end of the lubricating system and connects the outlet of the first hydraulic pump with the inlet of the motor, and the switching part switching between the first communication state and the second communication state,
wherein an output end of the lubricating system and an outlet of the motor are both communicated with the oil tank.
 
14. A fracturing device, comprising a power system, the power system comprising:
an oil tank;
a reduction gearbox, provided with a lubricating system, the lubricating system being communicated with the oil tank;
a hydraulic system comprising a plurality of hydraulic actuating members, which comprise a motor configured to connect with an engine of a fracturing device, the plurality of hydraulic actuating members being communicated with the oil tank and configured to drive at least one component of the fracturing device;
a first hydraulic pump, an inlet of the first hydraulic pump being communicated with the oil tank; and
a switching part, an outlet of the first hydraulic pump being communicated with an inlet end of the lubricating system through the switching part, the outlet of the first hydraulic pump being communicated with an inlet of the motor through the switching part, the switching part having a first communication state that connects the outlet of the first hydraulic pump with the inlet end of the lubricating system and disconnects the outlet of the first hydraulic pump from the inlet of the motor, and a second communication state that disconnects the outlet of the first hydraulic pump from the inlet end of the lubricating system and connects the outlet of the first hydraulic pump with the inlet of the motor, and the switching part switching between the first communication state and the second communication state,
wherein an output end of the lubricating system and an outlet of the motor are both communicated with the oil tank.