US 12,297,824 B2
Plunger pump with fault diagnosis structure
Bingzhuang Li, Yantai (CN); Ruijie Du, Yantai (CN); Zhongquan Sun, Yantai (CN); Wenping Cui, Yantai (CN); Peng Li, Yantai (CN); and Baoguo Jian, Yantai (CN)
Assigned to YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD., Yantai (CN)
Filed by Yantai Jereh Petroleum Equipment & Technologies Co., Ltd., Yantai (CN)
Filed on Oct. 26, 2022, as Appl. No. 17/973,551.
Claims priority of application No. 202122749185.4 (CN), filed on Nov. 10, 2021.
Prior Publication US 2023/0144116 A1, May 11, 2023
Int. Cl. F04B 49/06 (2006.01); F04B 53/14 (2006.01); F04B 53/18 (2006.01)
CPC F04B 49/065 (2013.01) [F04B 53/147 (2013.01); F04B 53/18 (2013.01); F04B 2201/0402 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A plunger pump, comprising a fixed structure, a motion structure and a fault diagnosis structure,
wherein the motion structure is provided on the fixed structure, and the motion structure is movable relative to the fixed structure;
the fault diagnosis structure comprises a temperature sensor and a processor, the fixed structure is provided with one or more first temperature detection holes, the temperature sensor is at least partially located in the one or more first temperature detection holes, and the temperature sensor is directly contactable to lubricating oil flowing through the motion structure to sense a temperature value of the lubricating oil; the processor is connected to the temperature sensor, and the processor performs monitoring and fault diagnosis on the plunger pump based on the temperature value sensed by the temperature sensor,
wherein the temperature sensor is not in direct contact with the motion structure;
the fixed structure comprises a crosshead slide, the motion structure comprises a crosshead assembly, the crosshead assembly slides to fit with the crosshead slide; and
the crosshead slide is provided with one or more first detection holes, the one or more first temperature detection holes, the one or more first temperature detection holes crosses through the crosshead slide to a side of the crosshead slide close to the crosshead assembly, the temperature sensor comprises one or more first temperature sensors, the one or more first temperature sensors is provided in the one or more first temperature detection holes.