公开(公告)号：US20230250817A1

公开(公告)日：2023-08-10

申请号：US18104722

申请日：2023-02-01

Applicant: FMC Technologies, Inc.

Inventor： Amy C. Stephens ,  James Cook ,  J. Brant White

IPC: F04B49/06 ,  F04B9/02 ,  F04B53/14

CPC classification number: F04B49/065 ,  F04B9/02 ,  F04B53/144 ,  F04B2201/1209 ,  F04B2201/0603

Abstract: A monitoring system for reciprocating pump having a plunger connected to a crankshaft by a crosshead and connecting rod assembly. The monitoring system includes a plurality of wireless temperature sensors which each have a temperature probe connected to a sensor head, a plurality of antennas which each have an antenna head configured to communicate wirelessly with a corresponding one of the sensor heads, and a signal processing unit connected to the plurality of antennas. Each temperature probe is positioned in contact with a corresponding crank pin bearing, wrist pin bearing or crosshead bearing. Each sensor head is mounted to the crosshead, and each antenna head is mounted to the pump at a location in which communication is enabled between the antenna head and its corresponding sensor head when the crosshead reaches a first position during each reciprocation of the crosshead. In operation, each antenna head transmits a radar pulse which is reflected by its corresponding sensor head, the reflected pulse is received by the antenna head and communicated to the signal processing unit, and the signal processing unit determines the temperature of the sensor head from the reflected pulse, which temperature is indicative of the temperature of its corresponding monitored bearing.