Water Pump Filter Assembly with Layered Screens for Overflow Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing water pumps, particularly condensate pumps, become clogged due to debris, leading to reduced performance, potential motor stalling, and overflow risks that can cause safety hazards and economic losses.
Innovation Solution
A water pump design incorporating a filter assembly with a filter screen and support frame that surrounds the water inlet, and optionally a second filter assembly within the tank, featuring multiple layers and varying mesh sizes/densities to ensure continuous filtration and prevent overflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a small filter basket with honeycomb holes is added at the water inlet, then filtration of impurities is improved, but the filter basket becomes clogged after a period of use causing overflow
Solution Approach 1:
The filter assembly is divided into multiple filter screens with different mesh sizes arranged in sequence. Coarser filters are positioned first to capture larger particles, followed by progressively finer filters. This segmentation prevents any single filter from becoming completely clogged while maintaining effective filtration across different particle sizes.
Solution Approach 2:
The patent changes the parameter of mesh size by using multiple filter screens with different mesh specifications. Instead of a single uniform mesh size, the system employs a gradient of mesh sizes that allows larger particles to be captured by coarser screens while finer particles are caught by subsequent finer screens, preventing premature clogging.
2Reliability
If the filter basket size is increased, then clogging resistance is improved, but the water pump structure becomes more complex and occupies more space
Solution Approach 1:
Multiple filter screens with different mesh sizes are nested within each other in a concentric arrangement. Each filter screen is positioned inside the previous one, creating a compact nested structure that provides multiple filtration stages without significantly increasing the overall size or complexity of the filter assembly.
Solution Approach 2:
Instead of increasing filter size in a single dimension, the patent uses multiple filter screens arranged in different spatial dimensions (concentric circles or layers). This dimensional arrangement provides extended filtration capacity and clogging resistance while maintaining a compact overall structure.
3Manufacturing precision
If multiple filter screens with different mesh sizes are used, then filtration effectiveness is improved, but manufacturing and maintenance complexity increases
Solution Approach 1:
The filtration system is segmented into multiple independent filter screens that can be manufactured separately using standard filtration components. Each screen can be produced independently with its specific mesh size, allowing for modular manufacturing and easier assembly while maintaining high filtration effectiveness.
Solution Approach 2:
The patent systematically varies the mesh size parameter across multiple filter screens in a controlled manner. This parameter change follows a logical progression from coarse to fine mesh, making the design predictable and easier to manufacture while achieving superior filtration effectiveness compared to a single-screen system.
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 design prevents overflow even with clogged filters, maintaining pump functionality, avoiding safety hazards and economic losses, while offering a simple structure for easy production and maintenance.
Implementation Method 1
water in the water tank enters the pump body after being filtered by the filter assembly
Data Source
AI summary
A water pump and a filter assembly for the water pump. The water pump includes a water tank, a pump body with a water inlet located at the bottom of the water tank, and a filter assembly having a connecting opening, surrounding and connected to the water inlet of the pump body through the connecting opening, so that the water in the tank enters the pump body after being filtered by the filter assembly. The filter assembly is arranged in the water tank, and even if the filter assembly is clogged due to long-term use and ineffective cleaning, the water will not overflow from the water tank, thereby avoiding economic losses or safety hazards caused by water overflow. Further, the water pump and the filter assembly for the water pump have the advantages of simple structure, easy production and manufacturing, and economic benefits.