Reinforced Plate Heat Exchanger Inlet Filter Against Hole Deformation
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Solution Overview
Problem
Conventional inline filters for plate-type heat exchangers deform under high fluid pressures, leading to changes in perforated hole diameters, allowing dust and foreign matter to pass through, increasing pressure loss and reducing heat transfer efficiency.
Innovation Solution
A filtration filter with a reinforcement member along its inner circumferential surface, supported by spiral-shaped reinforcement members, prevents deformation and maintains hole diameters, ensuring effective filtration and easy separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional inline filter is used without reinforcement members, then the device complexity is low and ease of manufacture is high, but the filter pipe deforms under high fluid pressure causing perforated hole diameter changes and filtration failure
Solution Approach 1:
The filter pipe is segmented into multiple sections by dividing the reinforcement members into a plurality of segments positioned at different locations along the filter pipe. Each segment reinforces a specific section, preventing deformation under pressure while maintaining overall structural integrity. This segmentation allows the filter to handle high pressures without requiring a single complex reinforcement structure.
Solution Approach 2:
Reinforcement members are added locally at specific positions where pressure effects are most pronounced, rather than uniformly throughout the entire filter pipe. The reinforcement members are positioned to provide targeted support at critical sections, maintaining filtration reliability while minimizing overall structural complexity.
2Strength
If the filter pipe is made thicker to prevent deformation, then strength and pressure resistance improve, but the pressure loss increases and heat transfer efficiency decreases
Solution Approach 1:
Instead of uniformly thickening the entire filter pipe wall, reinforcement members are added as separate structural elements at specific locations. This segmented approach provides the necessary strength and pressure resistance only where needed, maintaining thin walls in other areas to minimize pressure loss and preserve heat transfer efficiency.
Solution Approach 2:
The filter pipe structure becomes a composite system combining the base pipe material with added reinforcement members. This composite structure provides enhanced strength and pressure resistance without requiring the entire pipe wall to be thicker, thus maintaining good fluid flow characteristics and heat transfer properties.
3Stress or pressure
If the outer surface of the main body expands under high pressure, then the fluid inlet sealing is maintained, but the perforated hole diameter increases allowing dust and foreign matter to pass through
Solution Approach 1:
The reinforcement is segmented into multiple members positioned at different locations along the filter pipe, providing distributed support that prevents localized expansion. This segmentation ensures that the perforated holes maintain their precise dimensions even under high pressure, as the reinforcement members constrain the pipe wall from expanding outward.
Solution Approach 2:
Reinforcement members are positioned at specific locations where pressure-induced expansion would most affect the perforated holes. This localized reinforcement maintains the precise hole dimensions at critical sections while allowing the rest of the pipe to flex slightly, maintaining manufacturing precision where it matters most.
4Stress or pressure
If the filter pipe contracts under vacuum pressure, then the fluid inlet sealing is maintained, but the outer surface deformation causes difficulty in separating the filter from the fluid inlet
Solution Approach 1:
The reinforcement members are divided into multiple segments positioned at different locations, providing distributed support that prevents excessive contraction under vacuum pressure. This segmentation allows the filter pipe to maintain its shape and dimensions, making it easier to separate from the fluid inlet while still withstanding vacuum conditions.
Solution Approach 2:
Reinforcement members are positioned at specific locations to prevent contraction at critical sections, particularly near the fluid inlet connection area. This localized reinforcement maintains the filter pipe's separability while providing adequate vacuum pressure resistance where needed.
Data Source
AI summary
A plate-type heat exchanger inline filter comprises a filtration filter which is inserted into a cooling fluid inlet of a plate-type heat exchanger formed by a plurality of heat transfer plates and filters dust or foreign matter contained in the fluid. The filtration filter includes a filter pipe which has a hollow shape and in which an input hole communicating with the cooling fluid inlet is formed in one surface thereof and a plurality of small-diameter holes are formed to pass through an outer surface thereof to allow the fluid to pass therethrough in a direction perpendicular to the cooling fluid inlet toward a gap between the heat transfer plates and reinforcement member closely fixed along an inner circumferential surface of the filter pipe to support the inner circumferential surface of the filter pipe.