Servovalve-Controlled Pool Water Distribution With Filter Bypass
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Solution Overview
Problem
Private pools face challenges in maintaining water quality due to the retention of chlorine by filters, complex valve systems, and the need for continuous maintenance operations, which are not economically justified for intermittent use, and existing devices lack sufficient functionality for chlorine injection and are prone to leakage.
Innovation Solution
A water distribution device with servovalves and a control unit that automates and simplifies maintenance operations, including filtering, recirculation, and chlorine addition, while bypassing the filter to prevent chlorine retention, using a system of interconnected pipes and valves that can be controlled manually or automatically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter is used to maintain water quality, then water quality is improved, but chlorine is retained by the filter which reduces disinfection effectiveness
Solution Approach 1:
The system segments the water circulation into multiple independent pathways: a filtration circuit (through the filter) and a chlorination circuit (bypassing the filter). This allows simultaneous filtration and effective chlorination by directing water through different routes depending on the operational need.
Solution Approach 2:
Multiple valves act as intermediaries to control and direct water flow between different circuits. The valves mediate between the filtration need and the chlorination need, allowing the system to switch between filtering mode, chlorinating mode, and combined modes without direct conflict.
2Adaptability or versatility
If multiple pipes and valves are used to enable different maintenance operations, then functionality is improved, but system complexity increases
Solution Approach 1:
The valve system is designed with multi-functionality where a coordinated set of valves can perform multiple operations: filtration, chlorination, filter washing, and draining. Each valve can serve different functions depending on its position and combination with other valves, reducing the need for entirely separate dedicated components for each function.
Solution Approach 2:
The system merges the filtration function and chlorination function into a single integrated water circulation system. By combining these functions with shared infrastructure (pump, pipes, control unit) and using valve coordination, the system achieves versatility without proportionally increasing complexity.
3Ease of operation
If complex multi-way valves are used to control multiple operating modes, then operational control is improved, but leakage risk increases
Solution Approach 1:
Instead of using a single complex multi-way valve, the system segments the control into multiple simpler valves. Each valve has a simpler internal structure with fewer moving sealing parts, reducing the probability of leakage in each individual valve while maintaining the ability to control multiple operating modes through coordinated valve positions.
Solution Approach 2:
The system uses multiple identical or similar simple valve designs rather than one complex valve. This standardization allows for easier maintenance and replacement, and the simpler valve design inherently has fewer leakage points while achieving the same operational control when used in combination.
4Reliability
If continuous operation of water treatment systems is implemented, then water quality maintenance is improved, but operational cost increases
Solution Approach 1:
Instead of continuous operation, the system implements periodic action through automated cycles that alternate between filtration mode and chlorination mode. The control unit manages these periodic switches based on operational needs, allowing the pool water to be treated effectively over time while reducing energy consumption compared to continuous simultaneous operation of all systems.
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
Enables efficient, simplified, and partially automated maintenance of private pools, reducing the risk of leakage and user error, and optimizing water treatment cycles based on pool size and usage patterns.
Implementation Method 1
a pump pumping water from the basin
Implementation Method 2
a filter filtering the water of the basin when water flows through the filter in a filtering direction
Implementation Method 3
servovalves, and a control unit configured to actuate said valves and, by actuating the valves, making water pumped from the basin pass
Data Source
AI summary
A water distribution device for simplified and partially automated maintenance of an artificial basin having a water inlet connected to a pump circulating water from the basin through a parallel configuration of pipes, connectors, servo-valves, a filter, a pump and a control unit. The control unit actuates the servo-valves to selectively pumping the water from the basin in a first flow direction through the filter in a filtering mode, from basin in a second flow direction through the filter in a filter washing mode, and from the basin through the piping without passing through the filter in a recirculation mode.