Hydraulic Accumulator Pressure Control in Comminution Equipment
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Solution Overview
Problem
The manual re-charging of accumulators in hydraulic systems of comminution equipment is prone to human error, leading to potential catastrophic failures due to overlooked pressure drops, which can result in equipment damage and downtime.
Innovation Solution
A monitoring system with pressure sensors and a control unit that continuously monitors the pressure in the gas chamber of accumulators, automatically re-charges when necessary, and alerts staff to ensure the pressure remains within a predefined range, using a pressure regulating system and a manifold for efficient gas distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual monitoring and re-charging of accumulators is performed, then operational flexibility is maintained, but reliability deteriorates due to human error and potential overlooking of pressure drops
Solution Approach 1:
The system enables automatic monitoring and re-charging of accumulators through integrated pressure sensors and control units that autonomously detect pressure drops and initiate re-charging operations without human intervention, eliminating human error while maintaining operational reliability
Solution Approach 2:
Pressure sensors continuously monitor accumulator pressure and provide real-time feedback to control units, which automatically activate re-charging when pressure falls outside predefined ranges, creating a closed-loop system that ensures consistent pressure maintenance
2Productivity
If manual re-charging is performed on initiative of staff, then system complexity is minimized, but loss of time increases due to postponement and forgetting of re-charging tasks
Solution Approach 1:
The monitoring system operates continuously without interruption, constantly measuring pressure and automatically initiating re-charging when needed, ensuring that accumulators are always maintained at optimal pressure levels without delays or interruptions in protection
Solution Approach 2:
The system detects pressure drops early and automatically initiates re-charging before critical pressure levels are reached, preventing potential equipment failures and ensuring accumulators are recharged proactively rather than reactively
3Measurement precision
If pressure monitoring is performed manually, then device complexity is reduced, but measurement precision deteriorates due to human error and lack of continuous monitoring
Solution Approach 1:
Manual pressure checking and decision-making processes are replaced with automated electronic pressure sensors and control units that continuously measure pressure with high precision and automatically execute re-charging operations based on objective data rather than human judgment
Solution Approach 2:
Pressure sensors serve as intermediaries between the physical pressure state and the control system, providing accurate, continuous measurements that enable precise automated control without requiring direct human intervention or interpretation
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 ensures accurate and reliable monitoring and automatic re-charging of accumulators, reducing the risk of equipment failure, minimizing downtime, and providing a more precise detection of tramp events, thus enhancing the operational safety and efficiency of comminution equipment.
Implementation Method 1
at least one pressure sensor which is arranged to measure a pressure at the at least one accumulator
Implementation Method 2
a second chamber containing a pressurized gas. The first chamber is pressurized by hydraulic power units, e.g. a pump, and the second chamber has a stored pressure and these two chambers hold pressure against each other and sit in equilibrium
Data Source
Figure 1
AI summary
The present invention relates to a monitoring system for a hydraulic system in a comminution apparatus including at least one pressurized accumulator. The monitoring system comprises at least one pressure sensor and a control unit, wherein the pressure sensor is connected to the control unit. The pressure sensor being arranged to measure a pressure in the at least one accumulator and wherein the control unit is configured to determine that a pressure in the accumulator is outside of a predefined range and wherein the control unit is further configured to control a pressure regulating system arranged to restore the pressure in the pressurized accumulator.