Modular Flow Frame Structure with Internal Struts for Larger Channels

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Solution Overview

Problem

The efficiency of existing modular flow systems, such as those described in EP2427263 (A1), is far from optimal due to the configuration of frame elements that do not allow for a significant increase in efficiency.

Innovation Solution

The modular flow system incorporates frame elements with an outer frame surrounding an inner frame, featuring internal strut members that reinforce the structure and allow for larger vapor and/or liquid channels without compromising stability, enabling increased channel sizes and efficient utilization of the total area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of moving object

If the frame elements use a simple web structure without internal struts, then the manufacturing is easier and structure is simpler, but the channel size is limited and structural stability is compromised

Engineering Contradiction:
Improvechannel sizeVSAvoidstructural stability
Core Design Contradiction:
Area of moving objectVSStrength

Solution Approach 1:

The frame element is divided into multiple functional regions: an outer frame, an inner frame enclosing a central inner region, and multiple vapor/liquid channels arranged between them. This segmentation allows each region to be optimized independently - channels can be enlarged for higher throughput while the inner frame and struts provide structural support.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Internal strut members are introduced as intermediary structural elements that connect the inner frame to the outer frame. These struts act as mediators that transfer and distribute mechanical loads, enabling the channels to be enlarged without compromising overall structural stability. The struts provide the necessary reinforcement while allowing larger channel cross-sections.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If the frame walls are made thicker to increase structural stability, then the steadiness is improved, but the available area for channels and passage openings is reduced

Engineering Contradiction:
Improveframe stabilityVSAvoidavailable area for channels
Core Design Contradiction:
Stability of the object's compositionVSArea of stationary object

Solution Approach 1:

The frame structure is segmented into outer frame, inner frame, and internal struts. This allows the load-bearing functions to be distributed across multiple elements rather than requiring thick walls. The inner frame and struts collectively provide the necessary structural support, enabling thinner outer walls and larger channel areas.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of increasing wall thickness (one-dimensional solution), the patent adds internal structural elements in the third dimension - internal struts extending between the inner and outer frames. This three-dimensional structural reinforcement provides stability without reducing the two-dimensional channel area.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Productivity

If the vapor and liquid channels are enlarged to increase output and efficiency, then the transport capacity is improved, but the structural reinforcement is reduced

Engineering Contradiction:
Improveoutput and efficiencyVSAvoidstructural reinforcement
Core Design Contradiction:
ProductivityVSStrength

Solution Approach 1:

The frame element is segmented into distinct functional zones: enlarged vapor/liquid channels for high productivity, a central inner region for membrane distillation, and internal strut members for structural reinforcement. This segmentation allows each zone to be optimized for its specific function without compromising the others.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Internal strut members serve as intermediary support structures that enable channel enlargement. These struts provide the necessary structural reinforcement in the regions where channels are enlarged, allowing the channels to maintain larger cross-sections for improved vapor and liquid transport capacity.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Area of stationary object

If the frame elements use a conventional single-frame structure, then the design is simpler, but the area utilization is inefficient

Engineering Contradiction:
Improvearea utilizationVSAvoidframe structure complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The frame element is divided into an outer frame and an inner frame that encloses a central inner region. This segmentation creates multiple functional zones within the same footprint, maximizing area utilization. The space between the outer and inner frames is efficiently used for arranging vapor and liquid channels.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The inner frame is nested within the outer frame structure, creating a compact design that maximizes area utilization. The inner frame encloses the central inner region while the space between the nested frames accommodates the vapor and liquid channels, achieving efficient use of the total available area.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP3801846B1Modular flow system with internal strut members
Publication Date: 2026.02.25 EVCON GMBH
  • EP3801846B1 patent drawingFigure 1~3
  • EP3801846B1 patent drawingFigure 4A~4C
  • EP3801846B1 patent drawingFigure 5A~6

AI summary

The invention relates to a modular flow system having a plurality of frame elements (101, 102) configured to be combined together to form a stack for forming afunctional member such as in particular a membrane distillation stage, a vapor generator, a condenser, a heat exchanger, a filter and/or a pervaporation stage, wherein the frame elements (101, 102) each include: an outer frame (39) and an inner frame (43), the inner frame (43) encasing a central inner region (40) and being surrounded by the outer frame (39), passage openings (13 to 16) and vapor and/or liquid channels (17, 18) arranged between the outer frame (39) and the inner frame (43), wherein at least one of the vapor and/or liquid channels (17, 18) comprises at least one internal strut member (48) extending between the inner frame (43) and the outer frame (39).