Pool Filter Flow Switch for Saturation Detection
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Solution Overview
Problem
Conventional pool water filtration devices require manual estimation for filter core cleaning or replacement, leading to inefficiency and potential water quality issues due to premature or delayed maintenance.
Innovation Solution
A filtering device with a flow switch and reminding device that detects reduced fluid flow rates, alerting users to clean or replace the filter cartridge, combined with a control system for monitoring and managing filtration operations, including air discharge and locked-rotor detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the filter cartridge is cleaned or replaced at a fixed frequency manually estimated, then the maintenance schedule is simple to implement, but waste and inefficiency occur when cleaned or replaced prematurely
Solution Approach 1:
The system incorporates a flow switch that continuously monitors water flow rate through the filter cartridge and provides feedback to the control system. When the flow rate drops below a threshold indicating filter saturation, the system automatically generates a maintenance alert, replacing the fixed schedule with condition-based maintenance that optimizes both operational simplicity and filtration efficiency
Solution Approach 2:
The filtering device performs self-diagnosis by monitoring its own performance parameters (flow rate) and automatically determining when maintenance is needed, eliminating the need for manual estimation and enabling the system to serve its own maintenance needs
2Loss of time
If the filter cartridge is not cleaned or replaced when saturated, then maintenance frequency is reduced, but water quality deteriorates and dirt accumulates in the pool
Solution Approach 1:
The flow switch provides continuous feedback on filtration performance, enabling the system to detect saturation conditions and trigger timely maintenance alerts, ensuring water quality is maintained without requiring excessive maintenance frequency
Solution Approach 2:
The system detects filter saturation early through flow rate monitoring and issues maintenance alerts before complete clogging occurs, allowing proactive maintenance that prevents water quality deterioration while minimizing maintenance frequency
3Reliability
If the filter cartridge is cleaned or replaced frequently, then water quality is maintained, but waste of resources increases
Solution Approach 1:
The system uses flow rate feedback to determine the exact moment when filter maintenance is needed, enabling maintenance only when necessary rather than on fixed schedules, thus maintaining water quality while minimizing water and energy waste associated with frequent maintenance operations
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
The system ensures timely maintenance of the filter cartridge, preventing water quality deterioration and reducing waste by automating the detection of filter saturation, thus maintaining efficient filtration operations.
Implementation Method 1
a pivot arm connected to the housing and being pivotable between the communicating tube and the housing, a magnetic block disposed at an end of the pivot arm, and a reed switch disposed inside of the housing. The pivot arm is biased toward the reed switch by the fluid flow rate in the communicating tube
Implementation Method 2
a magnetic block disposed at an end of the pivot arm, and a reed switch disposed inside of the housing. The pivot arm is biased toward the reed switch by the fluid flow rate in the communicating tube; and the pivot arm and the magnetic block are pivoted away from the reed switch when the fluid flow rate in the communicating tube drops below the predetermined value
Data Source
AI summary
A filtering device includes a water pump, a filter cartridge, and a communicating tube for coupling the water pump with the filter cartridge. The filtering device further includes a flow switch attached to the communicating tube and configured to change switching states in response to a water flow rate in the communicating tube being lower than a predetermined value. The filtering device further includes a reminding device operably connected to the water flow switch. The reminding device generates a reminder signal when the state of the water flow indicates that the flow rate of the water in the communicating tube is lower than the predetermined value. The control system includes a control panel for the filtering pump, a central control system, and a filtration detecting system. The control panel is connected to the central control system and the central control system is connected to the filtration detecting system.