Compressing Diaphragm Pump Eccentric Roundel Vibration Control
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Solution Overview
Problem
Conventional compressing diaphragm pumps used in reverse osmosis systems suffer from unwanted noise and shaking due to resonant vibrations, leading to reduced durability and service lifespan, as well as water leakage issues caused by oblique pulling and squeezing phenomena.
Innovation Solution
The introduction of a compressing diaphragm pump design featuring a pump head body with curved grooves or protrusions and a diaphragm membrane with corresponding curved protrusions or grooves, along with a cylindrical eccentric roundel mount having a sloped top ring, which reduces torque and vibration, and eliminates high-frequency oblique pulling and squeezing phenomena.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional compressing diaphragm pump design is used, then basic pumping function is achieved, but unwanted noise and shaking occur due to resonant vibrations
Solution Approach 1:
The patent introduces asymmetric curved grooves and protrusions on the pump head body and diaphragm membrane that are circumferentially disposed around operating holes. These asymmetric geometric features create uneven fluid distribution and pressure patterns that disrupt resonant vibration modes, thereby reducing noise and shaking while maintaining pumping reliability
Solution Approach 2:
The patent employs curved grooves and curved protrusions with specific radii of curvature designed to modify fluid flow patterns and pressure distribution. The curved geometric features create smooth transitions and eliminate sharp edges that would otherwise generate turbulent flow and resonant vibrations, reducing noise and shaking while preserving pump durability
2Ease of operation
If conventional diaphragm membrane design is used, then pumping action is achieved, but oblique pulling and squeezing phenomena reduce service lifespan
Solution Approach 1:
The patent introduces localized curved grooves and curved protrusions at specific positions around the operating holes on the diaphragm membrane. These localized geometric features create areas of modified fluid pressure and flow that counteract oblique pulling and squeezing forces, distributing stress more evenly across the diaphragm membrane to extend service lifespan while maintaining effective pumping action
Solution Approach 2:
The curved geometric features on the diaphragm membrane create smooth flow paths and pressure transitions that eliminate sharp stress concentrations. The curvature of the grooves and protrusions distributes mechanical loads more uniformly across the diaphragm membrane surface, preventing oblique pulling and squeezing phenomena that would otherwise reduce service lifespan
3Ease of manufacture
If conventional pump head body and diaphragm membrane mating is used, then assembly is simple, but resonant vibrations cause water leakage
Solution Approach 1:
The asymmetric curved grooves and protrusions create a mating interface that disrupts resonant vibration patterns at the source. By incorporating these asymmetric features into the standard mating structure of the pump head body and diaphragm membrane, the design maintains assembly simplicity while preventing water leakage caused by vibration-induced loosening
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
This design significantly reduces vibration and noise, enhances the durability of the diaphragm membrane, diminishes power consumption, lowers working temperature, and extends the service lifespan of the pump, while also eliminating bearing noise and water leakage issues.
Implementation Method 1
an annular top surface portion that is inclined relative to horizontal to form a sloped top ring... which reduces torque and vibration, and eliminates high-frequency oblique pulling and squeezing phenomena
Implementation Method 2
an innovative mating means for the pump head body and diaphragm membrane to reduce unwanted noise and shaking caused by resonant vibrations
Data Source
AI summary
A compressing diaphragm pump with multiple effects includes an eccentric roundel mount with three cylindrical eccentric roundels, a pump head body with three operating holes, and a diaphragm membrane with three annular positioning protrusions. A basic curved groove or other positioning structure is circumferentially disposed around each operating hole while a basic curved protrusion or other mating positioning structure is provided in the diaphragm membrane for suitably coupling with the corresponding groove or positioning structure in the pump head body upon assembly, resulting in a shortened length of moment arm from the basic curved protrusions or other positioning structures and an annular positioning protrusion, and a reduction in vibration-caused noise and resonant shaking in comparison with a conventional compressing diaphragm pump. The cylindrical eccentric roundels each includes a sloped top ring extending between an annular positioning groove and a vertical or inverted frustoconical flank of the eccentric roundel mount resulting in an extended service lifespan of the compressing diaphragm pump.