Drain Aerator Floating Element Stabilizes Water Flow
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Solution Overview
Problem
Existing sanitary drain overflow mechanisms with automatic reloading often experience unpredictable activation due to water depressions and air vortexes, leading to inconsistent water flow and potential blockages, as well as water return from drainpipes interfering with the normal draining process.
Innovation Solution
An aerator system with a floating element that connects the drain to the outside environment, allowing air to enter and stabilize water flow, preventing depressions and vortexes, and ensuring the plug returns to its closed position, thus maintaining consistent overflow mechanism activation and preventing water return.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an automatic reloading overflow mechanism is used in a drain, then the overflow function is improved and water level control is automated, but the mechanism becomes unreliable due to unpredictable activation caused by water depressions and air vortexes
Solution Approach 1:
The aerator acts as an intermediary device between the drain and the environment. It introduces a controlled air flow that mediates the water flow dynamics, preventing harmful vacuum effects and vortexes that cause unpredictable plug activation. The aerator body with its specific channel geometry serves as the intermediary structure that modifies the interaction between water and air.
Solution Approach 2:
The invention applies pneumatic principles by introducing air flow through the aerator channels to interact with the water flow in the drain. The controlled air injection disrupts harmful water depressions and vortexes, stabilizing the hydraulic conditions around the overflow plug. This pneumatic-hydraulic interaction ensures reliable overflow activation only when truly needed.
2Device complexity
If the drain operates without an aerator, then the device complexity is reduced, but water flow becomes unstable due to depressions and vortexes causing inconsistent overflow activation
Solution Approach 1:
The aerator introduces controlled air flow into the water stream, creating a stable two-phase flow regime. This pneumatic intervention prevents the formation of harmful vacuum zones and vortexes that would otherwise destabilize the water flow and cause erratic overflow plug behavior. The air bubbles act as flow stabilizers.
Solution Approach 2:
The aerator changes the physical parameters of the water flow by introducing air, which modifies the flow velocity, pressure distribution, and turbulence characteristics. These parameter changes eliminate the harmful conditions that cause unstable overflow activation, ensuring consistent and predictable operation.
3Stability of the object's composition
If air flow is introduced through the aerator, then water flow stability is improved and vortexes are prevented, but energy consumption increases due to continuous aeration
Solution Approach 1:
The aerator is designed to be self-activating through the natural water flow itself. As water passes through the drain, it automatically triggers the air release mechanism without requiring external power sources. The system uses its own operational characteristics (water flow velocity and pressure) to control the aeration process, making it energy-efficient.
Solution Approach 2:
The aerator provides periodic or intermittent air injection rather than continuous aeration. Air is released in controlled pulses or bursts that coincide with the moments when vortexes or harmful depressions are likely to form, rather than maintaining constant air flow. This periodic action reduces energy consumption while maintaining flow stability.
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 aerator ensures the overflow mechanism operates predictably and efficiently by maintaining consistent water flow and preventing water return, thereby ensuring reliable drainage and proper operation of the overflow mechanism.
Implementation Method 1
a flow of air entering the channel and directed towards the housing of the drain, so that to aerate and stabilize the water flow being drained
Implementation Method 2
a floating element housed in the channel, movable between an inactive position and an active position. In the active position... the floating element sealingly intercepts a corresponding length of the channel
Data Source
Figure 1~3
Figure 4A~7
Figure 8~11
AI summary
An assembly comprising a drain (1) for sanitary fixtures provided with an overflow mechanism, and of a respective aerator (100), is described. The aerator (100) comprises a body (101) delimiting a housing (102) opened on top and on the bottom that can be crossed by a flow of water, in which the drain (1) for sanitary fixtures provided with an overflow mechanism is inserted. The aerator (100) comprises a channel (105) fluidically connecting a lower portion of the housing (102) with the outside, and a floating element (104, housed in the channel (105), movable between an inactive position and an active position. In the active position, the floating element (104) sealingly intercepts the channel (105) itself, and prevents the rising and spillage of water through the channel (105). In the inactive position, the floating element does not intercept the channel (105) or it only partly intercepts it, and the channel (105) can be crossed by a flow of air that enters the channel (105) and that is inserted in the housing (102) where the drain (1) is located, so that to aerate and stabilize the flow of water being drained.