Fluid Device Unit Structure Asymmetric Flow Path Stagnation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In fluid apparatus unit structures handling slurried chemical fluids, stagnation areas form due to the positional relationship between flow paths and valve spaces, leading to fluid pooling and solidification, which is undesirable as it causes condensate to attach inside valves.
Innovation Solution
The fluid apparatus unit structure incorporates plug-type valve bodies with no concave portions at the bottom, forming a swirling flow path that reduces stagnation areas, preventing fluid pooling and solidification by using valve body accommodating spaces for both chemical and water circulation paths, ensuring efficient fluid displacement and flushing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If valves are connected in series by a flow path on a coaxial line, then the device structure is simplified and compact, but stagnation areas form in the valve spaces causing fluid pooling and solidification
Solution Approach 1:
The flow path is positioned asymmetrically within the valve body accommodating space, specifically arranged to avoid the peripheral concave portions where stagnation occurs. This asymmetric positioning allows the main flow to pass through the central region while bypassing the dead zones, resolving the contradiction between compact coaxial structure and fluid stagnation prevention
Solution Approach 2:
The flow path transitions from a simple linear coaxial arrangement to a multi-dimensional configuration that utilizes both the central axial region and radial positioning. By extending the flow path in multiple directions and elevating it above the valve accommodating spaces, the design creates a three-dimensional flow pattern that avoids stagnation areas while maintaining compact overall dimensions
2Device complexity
If the flow path passes through valve body accommodating spaces, then the device becomes more compact without external piping, but concave portions in valve spaces create dead zones for fluid pooling
Solution Approach 1:
The flow path is extracted from the concave peripheral portions of the valve accommodating spaces and repositioned to traverse only the central convex region. This extraction eliminates the interaction between the flow path and the harmful concave portions, allowing the integrated valve structure to be maintained while preventing fluid pooling in dead zones
Solution Approach 2:
The flow path is segmented into multiple sections that navigate around the valve accommodating spaces rather than passing directly through them. Each segment is carefully routed to maintain flow velocity and avoid stagnation, while the overall path remains integrated within the compact device structure without requiring external piping
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 configuration prevents fluid stagnation and solidification, allowing for compact, efficient chemical fluid circulation and water circulation without condensate formation, maintaining operational integrity and preventing chemical fluid solidification within the apparatus.
Implementation Method 1
a flow path, linked between the adjacent flow apparatus components, forming a flow that swirls
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A fluid apparatus unit structure is provided that can be applied to a use in which a chemical fluid is removed as necessary while chemical fluid circulation and water circulation are being carried out, a fluid such as a chemical fluid does not readily solidify therein, and the fluid apparatus unit structure is compact. In the fluid apparatus unit structure (FU) that groups together and integrates plural fluid apparatus components that are connected via a flow path into a base member (10), a linked flow path (15), which links an adjacent air pressure control valve (20A) and a manual control valve (30A) that form a first chemical fluid discharge path that carries out chemical fluid circulation, is offset from the axial center of the fluid apparatus components.