Vortex Flow Control Plate Positioning for Storm Overflow Contaminant Drawing
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Solution Overview
Problem
The existing solutions for controlling contaminants in storm overflow chambers, such as the vertical control plate, do not clearly specify the optimal placement for effective drawing of contaminants into the intercepting pipe, leading to inefficiencies and potential issues like increased material costs and contaminant entrapment.
Innovation Solution
A vortex flow type water surface control device is designed with a control plate positioned in front of the intercepting pipe opening, accompanied by a guide wall that separates the inflow and intercepting pipes from the outflow pipe, with specific geometric relationships (0.5D≤X≤0.7D and 0.83D≤Y≤1.5D or 0.4D≤X≤0.5D and 1.0D≤Y≤1.5D) to optimize contaminant drawing into the intercepting pipe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a vertical control plate is arranged in the storm overflow chamber, then contaminants are drawn into the intercepting pipe, but the optimal position for the control plate is not clearly specified leading to inefficiencies
Solution Approach 1:
The patent specifies precise parameter ranges for the control plate position: projection length X should be 0.5D-0.7D (or 0.4D-0.5D) and distance Y should be 0.83D-1.5D (or 1.0D-1.5D), where D is the inner diameter of the opening. By defining these specific parameter ranges, the invention transforms the vague positioning problem into a concrete design guideline that ensures optimal contaminant drawing efficiency.
2Productivity
If the control plate is positioned too close to the opening, then material costs increase and contaminants may be entrapped, but if positioned too far, contaminant drawing efficiency decreases
Solution Approach 1:
The patent establishes specific parameter ranges that prevent both contaminant entrapment and excessive material costs. The projection length X is limited to 0.5D-0.7D (or 0.4D-0.5D) and distance Y is set to 0.83D-1.5D (or 1.0D-1.5D). These parameter constraints ensure the control plate is positioned far enough to avoid entrapment and material waste, yet close enough to maintain effective contaminant drawing.
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 enhances the efficiency of contaminant drawing into the intercepting pipe, preventing overflow and reducing material costs while minimizing contaminant entrapment, thereby effectively managing contaminant flow in storm overflow chambers.
Implementation Method 1
The vertical control plate 6 generates a vortex near an opening of an intercepting pipe 3. Floating contaminants 5 are drawn into the vortex, and then contaminants 5 are drawn into the intercepting pipe 3.
Data Source
Figure 1
Figure 2
AI summary
A control plate is provided at a preferred position in a storm overflow chamber. An inflow pipe 2, an intercepting pipe 3, and an outflow pipe 4 are connected to the storm overflow chamber 10. A vortex flow type water surface control device for a draining device includes the overflow chamber 10, and a control plate 6 arranged in front of an opening portion 3a of the intercepting pipe 3 opening to the storm overflow chamber 10. A relation (1) 0.5D≤X≤0.7D and 0.83D≤Y≤1.5D holds true, or a relation (2) 0.4D≤X<0.5D and 1.0D≤Y≤1.5D holds true, where D represents an inner diameter of the opening portion, X represents a projection length of the control plate 6 with respect to the opening portion 3a, and Y represents a distance between the control plate 6 and the opening portion 3a. As a result, contaminants enter the intercepting pipe 3.