Pulse Flow Homogenization for Paint Dispensers
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Solution Overview
Problem
The paint industry faces challenges in maintaining homogenization of pigmented colorants within dispensers due to settling and agglomeration of particles, leading to contamination and evaporation issues, as traditional stirrers are ineffective and can cause further problems like blockages and oxidation.
Innovation Solution
A method involving a pulsing flow mechanism where liquid is withdrawn at a first speed and returned at a higher second speed, preferably along the central axis of the container, to create a pulse flow that homogenizes the colorant without the need for a stirrer, with flow speeds and pressures adjusted based on viscosity and container specifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a stirrer is used to mix the colorant, then homogenization is improved, but contamination and blockages occur due to dried colorant buildup on the stirrer
Solution Approach 1:
The invention removes the stirrer from the container entirely, extracting the harmful mixing element that causes contamination. Instead, a pulse flow mechanism is used where liquid is withdrawn and returned through a conduit, achieving homogenization without direct contact between a solid stirrer and the colorant, thus preventing dried buildup and contamination.
Solution Approach 2:
The mechanical stirrer system is replaced with a fluid dynamic pulse flow system. Rather than using a rotating mechanical element to mix, the invention uses controlled withdrawal and return flow to create pulsing motion that homogenizes the colorant, eliminating the mechanical component that causes contamination.
2Stability of the object's composition
If a stirrer is used to mix the colorant, then homogenization is improved, but evaporation increases due to interaction with the atmosphere
Solution Approach 1:
The invention removes the stirrer that exposes the colorant surface to the atmosphere. By using a pulse flow mechanism with liquid withdrawn and returned through a conduit, the mixing process occurs without requiring a stirrer that would create surface disturbance and atmospheric interaction, thereby reducing evaporation.
3Productivity
If liquid is withdrawn and returned at high speed continuously, then mixing efficiency is improved, but energy consumption increases
Solution Approach 1:
The invention uses periodic pulse flow instead of continuous high-speed flow. The pump operates in cycles, withdrawing liquid and then returning it at controlled intervals. This periodic action achieves effective homogenization through repeated pulsing while significantly reducing overall energy consumption compared to continuous operation.
Solution Approach 2:
The invention changes the flow speed parameter dynamically - withdrawing at a first speed and returning at a second speed. This parameter variation optimizes mixing efficiency while controlling energy consumption by not maintaining constant high-speed operation throughout the cycle.
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 approach effectively mixes the contents of the container, preventing settling and evaporation, while avoiding contamination and blockages, ensuring consistent and efficient dispensing of paint colorants.
Implementation Method 1
A method involving a pulsing flow mechanism where liquid is withdrawn at a first speed and returned at a higher second speed, preferably along the central axis of the container, to create a pulse flow that homogenizes the colorant
Data Source
AI summary
Method of homogenizing a liquid, in particular a colorant for paint, in a container, comprising the steps of withdrawing liquid from the container at a first flow speed (S1) and then returning the liquid to the container at a second flow speed (S2), higher than the first flow speed (S1).