Jet Cleaning Pressure Control for Lower Power Consumption
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Solution Overview
Problem
Conventional cleaning apparatuses consume a large amount of power due to inefficient control of ejection pressure in jet-based cleaning processes.
Innovation Solution
A cleaning method and apparatus that utilize a positive displacement pump with a control system to adjust the ejection pressure dynamically based on the nozzle's position relative to target portions, increasing pressure when close and decreasing it when further away, to optimize energy use and prevent surface damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ejection pressure is maintained at a high level continuously, then the cleaning effectiveness is improved, but the power consumption increases significantly
Solution Approach 1:
The ejection pressure is made dynamic rather than static. The control device continuously adjusts the ejection pressure based on the real-time position of the nozzle relative to the target portion. When the nozzle is within the target region, the pressure is maintained at a high first pressure level for effective cleaning. When the nozzle moves away from the target region, the pressure is reduced to a lower second pressure level, thereby reducing power consumption while maintaining cleaning effectiveness when needed.
Solution Approach 2:
The ejection pressure parameter is changed dynamically based on operational conditions. The system switches between two distinct pressure levels (first pressure when close to target, second pressure when away from target) according to the nozzle's position relative to the target portion. This parameter change approach allows the system to optimize both cleaning effectiveness and energy efficiency by matching pressure output to actual cleaning needs.
2Use of energy by moving object
If the ejection pressure is reduced to save energy, then the power consumption decreases, but the cleaning effectiveness deteriorates
Solution Approach 1:
The ejection pressure is optimized locally based on the nozzle's position relative to the target portion. Instead of uniformly reducing pressure across all operating conditions, the system applies high first pressure specifically when the nozzle is within the target region where cleaning is needed, and reduces to second pressure only when the nozzle is away from the target region. This localized quality approach ensures cleaning effectiveness is maintained where required while reducing energy consumption during transit or positioning phases.
3Device complexity
If the ejection pressure is not dynamically adjusted, then the control system is simpler, but the energy efficiency is poor
Solution Approach 1:
The control system incorporates feedback from the position detection device that monitors the nozzle's position relative to the target portion. Based on this feedback information, the control device automatically adjusts the ejection pressure to the appropriate level (first pressure or second pressure). This feedback mechanism enables dynamic pressure adjustment without requiring overly complex control logic, achieving a balance between system complexity and energy efficiency.
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 approach reduces power consumption by adjusting ejection pressure according to the nozzle's position, ensuring effective cleaning while minimizing energy expenditure and preventing surface damage.
Implementation Method 1
generating a jet of a cleaning liquid from a nozzle using a positive displacement pump
Implementation Method 2
ejecting the jet having an ejection pressure of a first pressure when the current position is within the target region
Data Source
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AI summary
Provided is a cleaning method of reducing the power consumption. The cleaning method including: generating a jet (55) of a cleaning liquid from a nozzle (16); moving the nozzle (16) so that the jet (55) collides with a target portion (19a) of a workpiece (19); acquiring a current position of the nozzle (16); determining whether the current position is within a target region (54a) corresponding to the target portion (19a); ejecting the jet (55) having an ejection pressure (p) of a first pressure (p1) when the current position is within the target region (54a); and ejecting the jet (55) having the ejection pressure (p) lower than the first pressure (p1) when the current position is other than the target region (54a).