Multi-Turn Heat Exchanger Flow Layout to Prevent Liquid Stagnation
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Solution Overview
Problem
Existing heat exchanging apparatuses face inefficiencies due to stagnation of liquid flow and sequential entry into plate-shell flow passages, leading to reduced heat exchange efficiency and limited material options beyond metal.
Innovation Solution
A heat exchanging apparatus with a multi-turn flow passage system, featuring first and second arc-shell flow passages with angled directions and mesh contours, allowing simultaneous entry and exit of liquid through plate-shell passages, and made from materials including ceramic, enhancing rapid flow and heat exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the inflow direction of the flow passage is perpendicular to the longitudinal direction, then the liquid flows into the plate-shell flow passages sequentially, but this causes liquid stagnation and reduces heat exchange efficiency
Solution Approach 1:
The patent introduces arc-shaped flow passages with curved geometries that guide liquid flow smoothly from the inlet through multiple plate-shell flow passages simultaneously. The curved path eliminates dead zones and ensures continuous liquid movement, preventing stagnation while maintaining sequential access to all heat exchange surfaces.
Solution Approach 2:
The patent adds a longitudinal dimension to the liquid flow path by creating multi-level plate-shell flow passages arranged along the longitudinal direction. Liquid flows not only horizontally but also progresses through multiple levels, increasing the effective heat exchange area and ensuring all passages are utilized efficiently without stagnation.
2Adaptability or versatility
If conventional machining technology is used to manufacture the thermal block, then metal materials with excellent thermal conductivity can be used, but this limits the use of other materials with higher thermal conductivity such as ceramic
Solution Approach 1:
The thermal block is divided into multiple independent plate-shell flow passage units that can be manufactured separately and then assembled. This segmentation allows each unit to be produced using conventional machining with metal materials, while the overall structure achieves the complexity of ceramic materials through modular assembly of standardized components.
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 apparatus achieves high heat exchange efficiency by ensuring uniform liquid flow and utilization of diverse materials like ceramic, addressing stagnation and material limitations of prior designs.
Implementation Method 1
a high or low temperature liquid flows into and out of the interior of the heat exchanging apparatus to exchange heat with the devices under test
Implementation Method 2
When the liquid flows through the plurality of plate-shell flow passages, the liquid exchanges heat with the N contact blocks
Data Source
AI summary
A heat exchanging apparatus includes a main body and N contact blocks formed on a head end surface of the main body, where N is a natural number. The main body therein has a multi-turn flow passage, a first arc-shell flow passage and a second arc-shell flow passage. Each contact block therein has a plurality of plate-shell flow passages parallel to each other and parallel to a longitudinal direction defined by the main body. The first arc-shell flow passage and the second arc-shell flow passage respectively communicate with the multi-turn flow passage and the plurality of plate-shell flow passages. A liquid flows into the multi-turn flow passage from an inlet of the multi-turn flow passage, and flows through the first arc-shell flow passage, the plurality of plate-shell flow passages and the second arc-shell flow passage, and flows out from an outlet of the multi-turn flow passage.