Counterbalance Weight Balancing Assembly for Pumping Units
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Solution Overview
Problem
Current methods for counterbalancing pumping units in the oil and gas industry are unsafe due to the need for manual monitoring of motor current, which can lead to exposure to high voltage and potential short circuits when adjusting counterbalance weights.
Innovation Solution
A counterweight balancing assembly with sensors to measure orientation, velocity, and acceleration, communicating with a control board to determine and adjust counterbalance weights automatically, reducing the need for manual intervention and ensuring proper counterbalancing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual monitoring of motor current is used to adjust counterbalance weights, then counterbalancing can be achieved, but safety hazards increase due to exposure to high voltage and potential short circuits
Solution Approach 1:
The patent replaces manual mechanical monitoring with an automated sensor-based system. Sensors detect motor current and provide feedback to a controller that automatically adjusts counterbalance weights, eliminating the need for operators to manually handle high voltage components while achieving the same counterbalancing function
Solution Approach 2:
The patent introduces sensors and a control system as intermediaries between the operator and the high voltage motor current. The sensors measure current without direct contact, and the controller processes this information to make adjustments, creating a safe buffer that prevents direct exposure to electrical hazards
2Ease of operation
If counterbalance weights are manually adjusted based on motor current monitoring, then counterbalancing can be achieved, but device complexity increases due to exposed high voltage wires and manual intervention requirements
Solution Approach 1:
The system performs self-diagnosis and self-adjustment through automated sensor feedback and controller processing. The pumping unit monitors its own operational parameters and makes necessary counterbalance adjustments without requiring external manual intervention, simplifying the operational process
Solution Approach 2:
The patent implements a closed-loop feedback system where sensors continuously monitor motor current and other parameters, transmit this information to a controller, and enable automatic adjustments. This feedback mechanism simplifies operation by providing real-time information and automated control, reducing the complexity of manual monitoring and adjustment procedures
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
Enhances safety by automating the counterbalancing process, reducing the risk of electrical hazards and improving the efficiency of pumping unit operation by ensuring symmetrical acceleration and velocity during upstrokes and downstrokes.
Implementation Method 1
a first sensor positioned to detect an orientation of a counterbalance weight of the pumping unit while the pumping unit is running
Data Source
AI summary
Embodiments of the present disclosure generally relate to apparatus and methods for counterbalancing a pumping unit. One embodiment of the present disclosure provides a method for operation a pumping unit. The method includes measuring an orientation of a component and one or more parameters of the pumping unit while running the pumping unit, and determining an imbalance of the pumping unit according to the measured orientation and one or more parameters.