Coaxial Siphon Conveyance Assembly for Flooded Vertical Flow

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Solution Overview

Problem

Existing liquid conveyance systems in vertical sections face issues with space inefficiency, aesthetic concerns, increased complexity and cost, and potential leaks due to siphon assemblies that require multiple joints and deviate from the vertical axis, leading to inaccurate measurements and air ingress.

Innovation Solution

A coaxial siphon-effect section integrated into a single-monolithic piece maintains the vertical conduit's axis, minimizing space, reducing joints, and ensuring continuous flooding, allowing for symmetrical velocity profiles and efficient installation of measurement systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a conventional siphon assembly is installed in a vertical conduit, then the liquid column is maintained for flooding, but the vertical axis shifts and coaxiality is lost

Engineering Contradiction:
Improveliquid column stabilityVSAvoidvertical axis alignment
Core Design Contradiction:
Stability of the object's compositionVSShape

Solution Approach 1:

The siphon assembly is divided into separate modular components: a vertical section, a siphon section with bends, and a downstream section. This segmentation allows each component to be optimized independently, with the siphon section providing the necessary liquid column stability while the modular design manages the axis shift through controlled transitions between sections.

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If a conventional siphon assembly is installed, then flooding is maintained, but more space is required

Engineering Contradiction:
Improveflooding maintenanceVSAvoidconduit space
Core Design Contradiction:
Stability of the object's compositionVSVolume of moving object

Solution Approach 1:

The siphon section is integrated within the vertical conduit structure, with the siphon bends and liquid column nested within the overall conduit volume. This nesting approach allows the siphon functionality to be incorporated without requiring a completely separate external structure, thereby reducing the total space required while maintaining the flooding effect.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Stability of the object's composition

If a conventional siphon assembly is installed, then flooding is maintained, but aesthetic problems occur in visible constructions

Engineering Contradiction:
Improveflooding maintenanceVSAvoidconduit appearance
Core Design Contradiction:
Stability of the object's compositionVSShape

Solution Approach 1:

The aesthetic considerations are applied locally to the visible portions of the conduit. The vertical sections are designed with smooth, clean lines suitable for visible installations, while the siphon bends are confined to less visible areas or designed with radii that maintain acceptable aesthetics. This local differentiation allows the flooding function to be maintained while preserving the visual appeal of visible conduit sections.

Inventive Principle:
Principle #3Local quality

4Ease of manufacture

If independent plastic injection moulded parts are joined, then manufacturing is enabled, but the number of joints increases

Engineering Contradiction:
Improvemanufacturing capabilityVSAvoidnumber of joints
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

Multiple conduit sections and the siphon assembly are merged into a single integrated component manufactured by plastic injection moulding. This consolidation eliminates the need for multiple separate joints, reducing the overall number of connection points while maintaining the manufacturing advantages of injection moulding. The single-piece construction directly addresses the leak risk associated with multiple joints.

Inventive Principle:
Principle #5Merging (Combining)

5Adaptability or versatility

If more joints are present, then assembly flexibility is improved, but leakage risk increases

Engineering Contradiction:
Improveassembly flexibilityVSAvoidleakage resistance
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The conduit sections and siphon assembly are combined into a single integrated component, eliminating multiple joints and thereby reducing leakage risk. This merging maintains sufficient adaptability through the design of the siphon section itself, which can accommodate various installation requirements through its geometric configuration rather than requiring multiple separate jointed sections.

Inventive Principle:
Principle #5Merging (Combining)

6Ease of operation

If siphon assembly is exposed, then functionality is visible, but measurement accuracy decreases

Engineering Contradiction:
Improvefunctionality visibilityVSAvoidmeasurement accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The measurement system is extracted and positioned in a separate location from the visible siphon assembly. This separation allows the siphon functionality to remain visible and operational while the measurement instruments are placed in a protected environment where they can maintain accurate measurements without being affected by the siphon's operational dynamics or visual exposure.

Inventive Principle:
Principle #2Taking out (Extraction)

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 solution provides a compact, leak-resistant, and cost-effective system that maintains coaxiality, enhances aesthetics, and ensures accurate measurement by preserving a stable liquid column and symmetrical flow profiles.

Implementation Method 1

A liquid conveyance assembly (10) is installed as part of at least one section with a vertical component in a liquid conveyance installation... a siphon-effect section (12) coaxial with said previous vertical component section... the siphon-effect section (12) maintains at least the vertical conduit section (11) flooded with liquid

Methodology Applied
Scientific EffectSiphon: Syphon

Data Source

PatentEP4159936B1Liquid conveyance assembly and apparatus
Publication Date: 2026.03.18 SEDAL SL
  • EP4159936B1 patent drawingFigure 1
  • EP4159936B1 patent drawingFigure 2a~3b
  • EP4159936B1 patent drawingFigure 4a~5a

AI summary

The present invention relates to an assembly, segment, section or similar for conveying liquids which is fitted to an installation for conveying and supplying such liquids, in a vertical or approximately vertical section of the installation, with the liquid entering at the top and leaving at the bottom of the lower section, which is to be kept, at least in part, flooded, where the conveyance assembly consists of a single-piece main part which has a "U" section incorporated, constituting a coaxial siphon-effect part. The present invention also relates to an apparatus installed in a liquid supply installation which incorporates in the conveyance assembly, or close to it, a system for measuring the characteristics of the liquid and its flow.