Fluid Evacuation Siphon With Movable Brake for Odor Blocking
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Solution Overview
Problem
Conventional siphons used in sanitary equipment to prevent odor rise are bulky due to large water seals, occupying significant space and are inefficient in maintaining the water seal over time, leading to gas passage.
Innovation Solution
A fluid evacuation device with a movable brake in the water seal volume, guided by a solid structure to force fluid flow through the seal, reducing the need for a large water volume and preventing gas passage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large water seal volume is used in conventional siphons to maintain gas blocking capability over time, then the reliability of odor prevention is improved, but the device occupies significant space and becomes bulky
Solution Approach 1:
The brake is designed to be movable relative to the guide, allowing it to dynamically adjust its position. During normal operation, the brake moves to allow fluid flow; during depression events, it moves to block the outlet and prevent water seal evacuation. This dynamic behavior enables a compact siphon design while maintaining reliable odor prevention, as the brake actively intervenes only when needed rather than requiring a continuously large water seal volume.
2Duration of action of stationary object
If a large water seal volume is used to compensate for gradual water loss over time, then the duration of gas blocking is extended, but the device complexity and size increase
Solution Approach 1:
The brake is designed to automatically respond to pressure depressions without external control. When a depression occurs at the outlet, the pressure differential automatically moves the brake to block the outlet, preventing water seal evacuation. This self-activating mechanism extends the effective duration of gas blocking without requiring a large water seal volume or complex control systems, as the brake serves itself by responding directly to pressure changes.
3Ease of manufacture
If the brake is made stationary to simplify the structure, then the ease of manufacture is improved, but the ability to maintain fluid flow while preventing gas passage is reduced
Solution Approach 1:
The brake is designed with movable capability relative to the guide, allowing it to assume different positions based on operational needs. During normal fluid flow, the brake moves to a position that allows unrestricted passage. During depression events, it moves to block the outlet. This dynamic positioning capability enables the brake to maintain both high fluid evacuation efficiency and effective gas blocking, overcoming the limitations of a stationary design that would compromise either flow or blocking performance.
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 movable brake maintains the water seal effectively, allowing for a compact siphon design that prevents odor rise while ensuring efficient fluid evacuation.
Implementation Method 1
A siphon is an arrangement that can take multiple forms and is configured to allow the flow of liquids while preventing or limiting the passage of gases. Typically, a conventional siphon is configured to retain a portion of the liquid flowing through it, this portion being traditionally called a 'water seal'
Implementation Method 2
air intakes causing relative depressions between the water seal volume and the outlet, compared to the pressure between the inlet and the water seal. These depressions, the force of which exceeds the force of gravity which maintains the water seal in the water seal volume, suck a part of the water seal towards the outlet
Data Source
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AI summary
Fluid evacuation device (10), comprising an inlet (12), an outlet (14) and a siphon system provided between the inlet (12) and the outlet (14), the siphon system defining a water seal volume (16) configured to retain at least a portion of the fluid flowing between the inlet (12) and the outlet (14), and comprising a guide (24) extending at least to the water seal volume (16) to force the fluid flowing between the inlet (12) and the outlet (14) to pass through the water seal volume (16), the evacuation device further comprising a brake (50) provided at least in part within the water seal volume (16), the brake (50) being at least partly movable relative to the guide (24).