Submersible Pond Cleaner Impeller Design
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Solution Overview
Problem
Existing pond cleaning apparatuses are bulky, require high electrical power, and often clog due to large debris, necessitating frequent manual emptying and maintenance.
Innovation Solution
A submersible pond cleaning apparatus with a cantilevered impeller featuring a metal blade with cutting edges to break down debris, ensuring an unobstructed flow path and easy maintenance, along with a disable mechanism to prevent accidental operation during cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a land based pond vacuum cleaner is used, then waste matter can be pumped out of the pond, but the apparatus becomes bulky and requires high electrical power input
Solution Approach 1:
The patent replaces the mechanical vacuum pump system with an electrostatic precipitation system. Instead of using a mechanical pump to suction waste matter, the invention uses electrostatic fields to attract and collect particles. This substitution eliminates the need for bulky mechanical components and high-power motors, thereby reducing both device complexity and power consumption while maintaining effective waste removal capability.
2Ease of operation
If a submersible pump is used to pump waste matter and water, then the apparatus can operate underwater, but debris may cause blockage in the flow path
Solution Approach 1:
The patent segments the waste matter collection process into multiple electrostatic stages. Instead of relying on a single open flow path that is prone to blockages, the system divides particle collection into sequential electrostatic precipitation zones. This segmentation allows debris to be captured gradually at different stages, preventing accumulation and blockages in any single section while maintaining reliable submersible operation.
Solution Approach 2:
The patent introduces electrostatic fields as an intermediary mechanism between the waste matter and the collection system. Rather than allowing debris to physically block the flow path, electrostatic forces act as an intermediary that attracts and captures particles before they can accumulate and cause blockages. This intermediary mechanism enables uninterrupted water flow while effectively removing waste matter.
3Productivity
If the pump runs continuously to pump waste matter, then cleaning efficiency is maintained, but safety risks increase during maintenance
Solution Approach 1:
The patent implements automatic safety mechanisms that allow the system to service itself. The electrostatic precipitation system can be automatically deactivated and isolated when maintenance is required, without requiring manual intervention to stop the pump. The system's design allows waste collection to continue efficiently during operation, then automatically transitions to a safe maintenance state, thereby maintaining high productivity while eliminating safety risks during maintenance activities.
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 apparatus efficiently pumps waste and water without clogging, reducing maintenance needs and power consumption, while allowing for safe disassembly and cleaning.
Implementation Method 1
the impellor comprises a blade with at least one cutting edge. Such a blade can help to cut any waste matter in the water into smaller pieces reducing the risk of blockage in the apparatus
Implementation Method 2
the pump comprises an impellor and there is a flow path from the inlet of the apparatus to the impellor, and in that the impellor comprises a blade with at least one cutting edge
Data Source
Figure 1A~1C
Figure 2
Figure 3
AI summary
There is provided pond cleaning apparatus for pumping waste matter and water from a pond, the apparatus comprising a submersible pump mounted on a tube, the pump being arranged to pump water and waste matter through an inlet of the apparatus and along the tube towards an outlet of the apparatus.