Graywater Treatment Pipe Flow Separator Design
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Solution Overview
Problem
Existing wastewater treatment arrangements experience a decrease in long-term retention capacity with very long treatment distances, leading to ineffective sedimentation and separation of foreign substances.
Innovation Solution
The design enhances the wastewater treatment arrangement by increasing the ratio of pipe length to internal diameter and optimizing the geometry of through-channels, including inclined and flexible boundary edges, to improve flow separation and prevent turbulence, ensuring effective sedimentation even in long pipes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the length of the wastewater treatment pipe is increased to treat very long wastewater treatment lines, then the treatment capacity is improved, but the long-term retention capacity decreases due to turbulence and ineffective sedimentation
Solution Approach 1:
The flow partition divides the pipe into flow chamber and collection chamber, segmenting the flow path to create calm zones for sedimentation while maintaining overall system length for extended treatment capacity
Solution Approach 2:
The through-channels extend in the longitudinal dimension of the pipe rather than only radially, creating extended flow paths that increase treatment effectiveness without requiring additional pipe length
2Reliability
If the thickness of the flow separator is increased to improve flow separation, then the separation effectiveness is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The invention specifies optimal parameter ranges (through-channel length ratio ≥ 0.075, outlet opening dimensions) that achieve effective flow separation without excessive thickness, balancing performance with manufacturability
3Reliability
If the through-channels are designed with longer flow paths to reduce turbulence, then the sedimentation effectiveness is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The invention defines specific parameter ranges (length ratio ≥ 0.075, outlet opening dimensions) that achieve effective sedimentation while remaining manufacturable, avoiding overly stringent precision requirements
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 improves flow separation and retention of deposited dirt loads, maintaining a calm collection chamber and preventing sediment re-suspension, even in long treatment pipes, thereby enhancing the overall retention capacity.
Implementation Method 1
This improved flow separation ensures that the collection chamber remains calm, even in long wastewater treatment pipes, thus retaining the deposited pollutants
Implementation Method 2
This aerodynamically advantageous design of the upstream boundary edge increases the laminar character of the flow components adjacent to the surface of the flow baffle
Implementation Method 3
a collection chamber in which the foreign substances that sink to the bottom and/or rise to the ceiling accumulate
Implementation Method 4
the ratio of the length of the respective through-channel to the inner diameter of the wastewater treatment pipe has a value of at least 0.075
Implementation Method 5
which separate flow chambers from one another, in which a plurality of passage channels distributed over the length of the wastewater treatment pipe are formed, which connect the collection chamber with the at least one flow chamber
Data Source
AI summary
The invention relates to a wastewater treatment arrangement (10) for removing foreign substances from wastewater according to density, comprising at least one wastewater treatment pipe (12) that has at least one flow area (30) through which the wastewater flows and comprising at least one reduced-flow collecting area (32, 34) in which the foreign substances that sink to the bottom and/or rise to the top according to density accumulate. The collecting area (32, 34) is separated from the flow area (30) by a flow-separating wall (36, 38) which is provided at the bottom and/or at the top of the flow area and in which a plurality of through-channels (40) is formed. According to the invention, if the ratio of the length (L) of the wastewater treatment pipe (12) to the inner diameter of the wastewater treatment pipe exceeds a value of 20, then in the case of at least some of the through-channels (40), the ratio of the length of said through-channels (40) to the inner diameter of the wastewater treatment pipe (12) has a value of at least 0.075.