Plunger Pump Fault Diagnosis via Lubricant Temperature
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Solution Overview
Problem
Plunger pumps in the oil and gas field require blind disassembly and maintenance, which is wasteful of labor and materials and lacks precision in detecting damage to key load-bearing parts.
Innovation Solution
The plunger pump incorporates a fault diagnosis module with temperature sensing components and a processing unit that monitors the temperature of lubricating oil flowing through the motion component, allowing for real-time monitoring and fault diagnosis without disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If blind disassembly and maintenance are performed based on production plan and operator experience, then preventive maintenance is achieved, but labor and materials are wasted and damage detection is imprecise
Solution Approach 1:
The patent installs temperature sensing components and detection holes in advance within the plunger pump structure, enabling continuous monitoring before actual damage occurs. This preliminary setup allows the system to detect temperature changes that indicate potential damage, eliminating the need for blind disassembly and enabling maintenance only when actually needed.
2Measurement precision
If continuous monitoring of key load-bearing parts is implemented, then damage detection accuracy is improved, but device complexity increases
Solution Approach 1:
The patent uses temperature as an intermediary parameter to indirectly monitor the working state of key load-bearing parts. Instead of directly measuring complex mechanical parameters like stress or wear, the system measures temperature changes in the lubricating oil, which serve as a reliable indicator of abnormal conditions. This intermediary approach simplifies the monitoring system while maintaining high measurement precision.
3Reliability
If disassembly is performed regardless of equipment failure, then all parts are inspected, but maintenance time and productivity are reduced
Solution Approach 1:
The patent implements a feedback mechanism where temperature sensing components continuously monitor the working conditions and provide real-time data to the processing unit. When the temperature exceeds predetermined thresholds or shows abnormal trends, the system generates fault diagnostics that trigger targeted maintenance actions. This feedback-driven approach ensures maintenance is performed only when necessary, improving both reliability and productivity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution improves the accuracy of working state monitoring and fault diagnosis, enabling timely detection of issues and reducing the risk of extended damage to other parts, thus optimizing maintenance efficiency and reducing costs.
Implementation Method 1
the temperature sensing component is contactable to lubricating oil flowing through the motion component
Implementation Method 2
lubricating oil flowing through the motion component
Data Source
AI summary
The present application relates to a plunger pump, and the technical field of high-pressure media transport equipment. The plunger pump comprises a fixed component, a motion component and a fault diagnosis module, the motion component is provided on the fixed component, and the motion component is movable relative to the fixed component. The fault diagnosis module comprises a temperature sensing component and a processing unit, the fixed component is provided with one or more temperature detection holes, the temperature sensing component is at least partially located in the one or more temperature detection holes, and the temperature sensing component is contactable to lubricating oil flowing through the motion component; the processing unit is connected to the temperature sensing component, and the processing unit performs monitoring and fault diagnosis on the plunger pump based on a temperature value sensed by the temperature sensing component.