Liquid Discharge Mechanism V-Shape Circulation Path
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Solution Overview
Problem
Existing liquid material discharge devices face issues with solid particles precipitating and accumulating in the circulation path, leading to clogging, uneven concentration, and interference with fixtures, particularly when the valve seat is positioned at a steeper slope or lower than the nozzle, causing peeling-off or rising-up of particles and potential damage.
Innovation Solution
A discharge mechanism with a circulation path formed by inflow and outflow paths that create a V-shape, where the angle between the liquid chamber and inflow path is acute and the angle between the liquid chamber and outflow path is greater, preventing solid particle precipitation and accumulation by ensuring a smooth flow that raises and carries away particles near the valve seat, and stabilizing pressure using regulators to maintain uniform mixing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the valve seat is positioned at a steeper slope or lower than the nozzle, then the discharge mechanism can be compactly designed, but solid particles precipitate and accumulate, causing clogging and potential damage
Solution Approach 1:
The patent applies asymmetry by positioning the valve seat at a specific height relative to the nozzle, creating an asymmetric circulation path where the inflow path angle differs from the outflow path angle. This asymmetric configuration prevents solid particles from accumulating at the valve seat while maintaining compact discharge mechanism design.
Solution Approach 2:
The patent creates a circulation path that maintains equipotential flow conditions by ensuring the liquid level in the liquid chamber remains above both the valve seat and nozzle. This equipotential configuration allows liquid to flow smoothly through the circulation path without creating zones where particles can settle, preventing accumulation while maintaining compact design.
2Stability of the object's composition
If a circulation path is introduced to prevent particle precipitation, then particle uniformity is improved, but fixtures for connecting pipes may interfere with discharge operation
Solution Approach 1:
The patent applies local quality by creating a localized circulation path within the discharge mechanism that specifically addresses particle uniformity in the liquid chamber. The circulation path is designed with specific angle requirements (acute angle for inflow, greater angle for outflow) to ensure particles remain suspended locally without requiring external fixtures that would interfere with discharge operation.
Solution Approach 2:
The patent merges the circulation path functionality directly into the discharge mechanism structure itself, eliminating the need for separate external circulation fixtures. The inflow and outflow paths are integrated into the discharge mechanism, combining particle suspension and discharge functions in a unified structure that avoids operational interference.
3Reliability
If the liquid chamber is positioned high to prevent particle accumulation, then particle precipitation is reduced, but the device height increases and may interfere with discharge operation
Solution Approach 1:
The patent transitions from a vertical arrangement (which would increase device height) to a angular/planar arrangement by specifying acute angles between the liquid chamber center axis and pipe center axes. This dimensional change allows the circulation path to achieve particle suspension effectiveness without increasing the vertical height of the device, preventing interference with discharge operation.
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 effectively prevents solid particle precipitation and accumulation, ensuring stable and uniform mixing of particles in the liquid, reducing the risk of clogging and damage, while allowing for a short nozzle configuration without interference from connecting fixtures.
Implementation Method 1
ensuring a smooth flow that raises and carries away particles near the valve seat
Implementation Method 2
stabilizing pressure using regulators to maintain uniform mixing
Data Source
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AI summary
The present invention provides a discharge mechanism (3) comprising a drive unit (28) that moves a rod (30) reciprocally, and a discharge unit (29) including a liquid chamber (44) allowing the rod (30) to pass therein and a valve seat communicated with a nozzle (48), the nozzle (48) discharging therefrom a liquid mixed with solid particles with an operation of moving the valve seat (45) and a tip of the rod (30) relatively away from each other, wherein the discharge unit (29) includes an inflow path (52) through which the liquid mixed with the solid particles flows into the liquid chamber (44), and an outflow path (53) through which the liquid mixed with the solid particles in the liquid chamber (44) flows out, the inflow path (52) and the outflow path (53) are connected in a V-shape, the liquid chamber (44) is disposed in a valley portion of the V-shape, and the valve seat (45) is disposed at a lower end of the V-shape. Such an arrangement prevents precipitation and accumulation of the solid particles in a circulation path within the discharge unit.