Pond Unit Flow Control Valve Partial Opening
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Solution Overview
Problem
Existing pond units, such as pump and filter units, often require multiple separate systems with complex designs to draw water from various locations, which is expensive and inefficient.
Innovation Solution
A compact pond unit flow control valve with a moveable sleeve and tube-like portion allows partial opening of the inlet aperture even in the most closed position, preventing pump overload and enabling water intake from multiple sources using a single pump, featuring a control collar for intuitive operation and restricted rotational movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single pump is used to draw water from multiple intake areas, then system cost is reduced, but the risk of pump overload when main inlet is blocked increases
Solution Approach 1:
The controllable inlet is designed to remain partially open even when the control valve is in its most closed position, allowing a minimum amount of water to always reach the pump. This partial action prevents complete blockage from causing pump overload while maintaining the ability to control water flow from multiple intake areas through a single pump system.
2Adaptability or versatility
If multiple separate pumping and filtration systems are provided for different intake areas, then water can be drawn from various locations, but system cost and complexity increase
Solution Approach 1:
The flow control valve is designed with a tube-like portion that can be positioned to allow water intake from multiple different locations around the pond. The same valve mechanism serves multiple functions by selectively opening different inlet apertures, eliminating the need for separate pumping and filtration systems for each intake area.
Solution Approach 2:
The control valve incorporates a moveable blanking portion that can be dynamically positioned to open different inlet apertures in the tube-like portion. This dynamic adjustment allows a single pump system to adaptively draw water from various locations around the pond based on operational needs, providing versatility without requiring multiple fixed systems.
3Ease of operation
If the controllable inlet is completely closed when the control valve is closed, then water flow control is precise, but pump overload risk increases if main inlet is blocked
Solution Approach 1:
The controllable inlet is designed to remain partially open even when the control valve is in its most closed position, allowing a minimum amount of water to always reach the pump. This partial action prevents complete blockage from causing pump overload while maintaining the ability to control water flow from multiple intake areas through a single pump system.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A pond unit comprising a housing 1, a main inlet 3 into the housing for receiving water from a hose and a main outlet 4 from the housing for allowing water to leave the housing. The housing 1 has filtering apertures 14 therein which provide secondary inlets into the housing from a region surrounding the housing 1. The unit further comprising a flow control valve 5 which has a main flow passage 51 for receiving water from the main inlet 3 and feeding water towards the main outlet 4 and a controllable inlet 54a, 54b for controllably allowing flow of water from the interior of the housing and hence the secondary inlets 14 into the main flow passage. The flow control valve 5 comprises a control collar 56 for controlling a degree of openness of the controllable inlet 54a, 54b, wherein the control collar 56 is disposed around the main inlet 3 into the housing.