Ring Main Water Supply with Movable Venturi Module for Flushing
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Solution Overview
Problem
The existing drinking and service water systems face issues with solids deposition at cross-sectional bottlenecks due to fixed narrowing of the cross-section, which can lead to blockages and require complex flushing procedures to maintain fresh water availability.
Innovation Solution
A modular system where the cross-sectional narrowing is formed by a movable module that can be actuated to change its position from use to non-use, allowing for free flow and easy flushing, and is designed for easy maintenance and replacement with a spindle-driven mechanism and sealing elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed narrowing of the cross-section is provided in the supply line, then flow resistance is increased to enable flushing through ring lines via Venturi effect, but solids are deposited at the bottleneck causing blockages
Solution Approach 1:
The cross-sectional narrowing is implemented as a movable module that can be actuated between a use position (creating narrowing for flushing) and a non-use position (allowing free flow). This dynamic adjustment eliminates the fixed bottleneck that causes solids deposition while maintaining the flushing capability when needed.
Solution Approach 2:
The narrowing function is separated from the supply line as a distinct movable module. This segmentation allows the module to be independently actuated, removed, or replaced without affecting the entire supply line, and enables the narrowing to be moved out of the flow path when not in use.
2Object-affected harmful factors
If a movable module is used to form the cross-sectional narrowing, then solids deposition is prevented by allowing free flow, but the device complexity increases
Solution Approach 1:
The movable module is designed to be actuated by flow pressure differential. When flushing is needed, the pressure difference automatically moves the module to the use position without requiring external control systems, reducing the complexity of actuation mechanisms.
3Ease of operation
If the narrowing module is moved to non-use position for flushing, then free flow is enabled for removing solids, but the control complexity increases
Solution Approach 1:
The module uses automatic pressure-differential actuation where the flow conditions themselves control the module position. High flow conditions automatically move the module to the non-use position for flushing, while normal flow conditions move it to the use position, eliminating the need for external sensors or control systems.
Solution Approach 2:
The module position is automatically adjusted based on feedback from the flow pressure differential. The pressure difference caused by flow conditions provides continuous feedback that drives the module to the appropriate position, creating a self-regulating system.
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 solution prevents solids deposition, ensures continuous fresh water availability by allowing free flow during flushing, and simplifies maintenance by enabling the system to be opened for cleaning and replacement without blocking the entire system.
Implementation Method 1
there is a flow, usually due to the Venturi effect
Data Source
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AI summary
The present invention relates to a drinking or process water system with a transfer point from a public supply network, at least one supply line (10) for the supply of water and at least one ring line leading to at least one consumer, which is connected to the supply line (10) via an exit opening (17) and an entry opening (19), wherein a cross-sectional narrowing is provided between the exit opening (17) and the entry opening (19), so that a ring flow is caused in the ring line when there is a volume flow in the supply line (10).In view of the problem caused by the cross-sectional constriction, namely that dirt can become trapped in this constriction during flushing of the supply line, the present invention proposes to form the cross-sectional constriction by means of a module (20) inserted into the supply line (10) in a working position, which is movable into a non-working position in a cylinder (28) extending transversely to the supply line (10). In the inventive method for installing a corresponding drinking or process water system, after connecting the supply line (10) and the ring main connected to this supply line (10) to the transfer point, the cross-sectional constriction is removed from the supply line (10) and the supply line (10) is flushed.