Submerged Cleaning Device with Horizontal Hydraulic Circuit
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Solution Overview
Problem
Existing swimming pool cleaning devices have inefficiencies due to vertical hydraulic circuits, oversized pumping motors, complex and costly designs, and frequent clogging from debris, leading to high energy consumption, weight, size, and cost, with inconvenient access flaps and poor filtration efficiency.
Innovation Solution
A device with a filtration chamber and hydraulic circuit optimized for tangential filtration, featuring a convergent space for debris recovery, an upper access flap, and a compact design that reduces hydraulic resistance and clogging, allowing for efficient debris storage and reduced pressure losses, using a pumping motor and drive system with lower power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the hydraulic circuit extends vertically in the filtration chamber, then the pump efficiency is improved by minimizing pressure losses, but the device becomes larger in vertical direction, increasing hydraulic resistance to forward movement, weight, and size
Solution Approach 1:
The hydraulic circuit is reoriented from a vertical arrangement to a horizontal arrangement within the filtration chamber. The circuit extends in the longitudinal direction of the device rather than vertically, reducing the vertical footprint while maintaining functional performance. This dimensional reconfiguration decreases the device's overall height and reduces hydraulic resistance to forward movement without significantly increasing pressure losses.
Solution Approach 2:
The patent modifies the geometric parameters of the hydraulic circuit by changing its orientation and spatial distribution. The circuit is designed to extend horizontally through the filtration chamber with optimized path length and cross-sectional area, altering the flow characteristics to maintain low pressure losses while reducing the vertical dimension of the device.
2Ease of operation
If the access flap is arranged above the device, then user convenience is improved, but the hydraulic circuit becomes complex, increasing cost and pressure losses
Solution Approach 1:
The access flap and its associated sealing mechanism are extracted as a separate functional module from the main hydraulic circuit. The flap is designed to provide access to the filtration chamber without requiring complex modifications to the hydraulic circuitry. The circuit maintains its simple horizontal configuration while the flap assembly provides independent access functionality through a dedicated sealing arrangement.
3Reliability
If the filtering device has large volume for debris storage, then filtration efficiency is improved, but the device becomes larger overall, increasing cost and hydraulic resistance
Solution Approach 1:
The filtration device is designed with a nested structure where the filtering elements are arranged concentrically or in layered configurations within the horizontal filtration chamber. Debris storage capacity is increased by utilizing the vertical space within the chamber and by implementing multi-layer filtering arrangements, allowing large debris storage volume without proportionally increasing the device's external dimensions.
4Reliability
If the pumping motor is oversized to handle complex hydraulic circuits, then reliability is improved, but energy consumption and cost increase
Solution Approach 1:
The pumping motor is sized based on the actual requirements of the simplified horizontal hydraulic circuit rather than being oversized to accommodate complex circuit configurations. The motor power, flow rate, and pressure parameters are optimized for the horizontal circuit arrangement, resulting in energy-efficient operation while maintaining reliable pumping performance throughout the filtration process.
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 solution results in a more cost-effective and efficient swimming pool cleaning device with reduced energy consumption, smaller size, and improved handling, while maintaining equivalent suction and cleaning performance, with a filtering system that minimizes clogging and allows for easy maintenance.
Implementation Method 1
a hydraulic circuit which is capable of providing a flow of liquid between each inlet and each outlet through a filtering device which is accommodated in the filtration chamber, under the action of a pumping device
Implementation Method 2
a space which is delimited by filtering walls and which extends longitudinally towards at least one liquid outlet, this space for filtering and recovering debris
Data Source
AI summary
Detailed is a device for cleaning an immersed surface including a body and members for driving the body over the immersed surface, a filtration chamber which is provided in the body and which has a liquid inlet and a liquid outlet, a hydraulic circuit for flow of liquid between the inlet and the outlet through a filtering device, wherein the filtering device includes an opening which is in communication with the liquid inlet and, for filtering and recovering debris, a space which is delimited by filtering walls and which extends towards the liquid outlet, the space having a regular cross-section which decreases from the opening towards the liquid outlet in order to form a convergent chamber for tangential filtration of the liquid.