Monitoring system
AssigneeSpicket Valves and Pumps Limited
InventorGeorge Coulter Kennedy
Life of this patent
Estimating the term…
Abstract
There is disclosed a monitoring system for monitoring alignment of a piston rod assembly of a reciprocating pump, such as those used to pump drilling mud in the oil and gas exploration and production industry. In one embodiment, a monitoring system is disclosed which is for a reciprocating pump (10) of a type comprising a fluid end component (20), a power end component (18), and a piston rod assembly (12) extending between the fluid and power end components. The monitoring system includes a number of sensors (52, 74) coupled to the piston rod assembly, for providing an output indicative that the piston rod assembly is experiencing bending stress, which occurs in the event that the piston rod assembly becomes misaligned, in use of the pump.
Claims37
A monitoring system for a reciprocating pump of a type comprising a fluid end component, a power end component, and a piston rod assembly extending between the fluid and power end components, the monitoring system comprising at least one sensor adapted to be coupled to the piston rod assembly, for providing an output indicative that the piston rod assembly is experiencing bending stress.
A piston rod assembly for coupling between a power end and a fluid end of a reciprocating pump, the piston rod assembly comprising:
- a power end component;
- a fluid end component;
- at least one clamping member having a first end adapted to be coupled to the power end component and a second end adapted to be coupled to the fluid end component, for coupling the power and fluid end components together;
- a tensioning device for generating a force to secure the power and fluid end components against release;
- and
- a monitoring system comprising at least one sensor adapted to be coupled to the piston rod assembly for providing an output indicative that the piston rod assembly is experiencing bending stress.
A monitoring system for a high pressure reciprocating pump, the system comprising one or more stress-measurement sensors, the one or more sensors being arranged in parallel to a central axis through a piston rod assembly located between a fluid end component and a power end component, and indicator means for signaling to a user that the assembly is under bending stress.
Dependencies are inferred from the claim text.