Compact Water Circulation Channel with Deflection Duct
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Solution Overview
Problem
Existing water circulation channels are large and costly, making them unsuitable for broader application due to high energy demands and instability in flow velocity distribution, especially in smaller dimensions where uniform flow is difficult to achieve without increasing flow resistance and system size.
Innovation Solution
A compact water circulation channel design featuring a deflection duct with blade cascades and a short diffuser with segment plates, which deflects water flow using a half-tube deflection channel and blade cascades to maintain uniform flow velocity, reducing the need for additional smoothing devices and lowering power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If water circulation channels are made large to achieve uniform flow velocity distribution, then flow uniformity is improved, but device complexity and cost increase
Solution Approach 1:
The water circulation channel is divided into a swimming pool section and a return flow channel section separated by an intermediate floor. This segmentation allows the return flow channel to be positioned below the swimming pool, creating a compact vertical arrangement that reduces overall system footprint while maintaining effective flow circulation and uniform velocity distribution.
Solution Approach 2:
The return flow channel is arranged in the vertical dimension below the swimming pool rather than extending horizontally. This vertical arrangement allows the system to achieve uniform flow distribution without increasing horizontal system size, effectively solving the contradiction between flow uniformity and device complexity.
2Stability of the object's composition
If high-power pumps are used to maintain flow velocity in smaller channels, then flow uniformity is improved, but energy consumption increases
Solution Approach 1:
The intermediate floor creates a hydraulic connection between the swimming pool and return flow channel at the same elevation level. This equipotential arrangement allows water to flow naturally from the pool into the return channel without requiring additional pumping energy, while the return channel's geometry maintains uniform flow velocity distribution.
Solution Approach 2:
The return flow channel is designed to utilize the existing water flow from the swimming pool through the intermediate floor opening. The channel geometry and hydraulic connection enable the system to maintain flow uniformity using the kinetic energy already present in the circulating water, minimizing additional energy requirements.
3Stability of the object's composition
If additional flow smoothing devices are added to achieve uniform flow, then flow uniformity is improved, but device complexity increases
Solution Approach 1:
The return flow channel serves multiple functions simultaneously: it collects water from the swimming pool through the intermediate floor, provides flow smoothing through its geometric design, and returns water to the pump intake. This merging of functions eliminates the need for separate flow smoothing devices while maintaining uniform flow velocity distribution.
Solution Approach 2:
The return flow channel is designed as a multi-functional component that performs flow collection, flow regulation, and flow smoothing in a single structure. The channel's geometry and hydraulic connection to the swimming pool enable it to achieve uniform flow distribution without requiring additional specialized components.
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 design achieves a uniform flow velocity distribution orthogonal to the main flow direction, reducing operating costs and enabling transportability with low-power pumps, while maintaining stable operating conditions and minimizing structural complexity.
Implementation Method 1
a pump (4) for the flow drive, which is housed in the return channel (3)
Implementation Method 2
blades (5.1-5.4) arranged in blade cascades in the bends (5), by which the water flow is deflected
Implementation Method 3
a short diffuser (9) with a number of segment plates (11), which equalize the flow speed
Implementation Method 4
a deflection channel (7.1, 7.2), in each case formed by a rounded front edge (6) of the intermediate floor (2) and a half-tube (8)
Data Source
Figure 1~2
Figure 3~4
AI summary
The channel has a deflecting channel (7.1) provided on an upstream side (12) of a pump (4) and formed by a rounded front edge (6) of an intermediate bottom (2). A half-pipe (8) exhibits a concave inner side for surrounding the front edge of the intermediate bottom. Cross section of the deflecting channel is extended from a lower side of the intermediate bottom to a lower side of the intermediate bottom. A small diffuser (9) is provided downstream of the pump, and includes segmental plates (11) arranged in a flow chamber. Areas of the diffuser are directed parallel to a flow direction.