Separable Secondary Body Impingement Flow Heat Exchanger
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Solution Overview
Problem
Existing devices for extracorporeal temperature control face challenges with heat transfer efficiency and hygiene, as they are difficult to clean and maintain compliance with hygiene standards.
Innovation Solution
A device with a primary and secondary circuit for heat transfer using an impingement flow mechanism, where the secondary body is designed for easy attachment and detachment from the primary body, featuring nozzles that direct the flow to enhance heat transfer and includes a seal to prevent contamination, allowing for repeated use or disposal to ensure hygiene.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a heat exchanger with integrated cleaning channels is used, then heat transfer efficiency is improved, but cleaning difficulty increases due to complex internal structures
Solution Approach 1:
The heat exchanger is divided into two separable parts: a primary body with integrated cleaning channels and a secondary body that can be detached. This segmentation allows the secondary body to be easily removed for cleaning while the primary body retains its efficient heat transfer structure with internal cleaning channels.
Solution Approach 2:
The secondary body is extracted as a separate, detachable component from the primary body. This extraction enables the secondary body to be easily removed for cleaning or replacement without disassembling the complex internal structure of the primary body, thus resolving the cleaning difficulty while maintaining heat transfer efficiency.
2Reliability
If a disposable secondary body is used, then hygiene compliance is improved, but device complexity increases due to attachment and detachment mechanisms
Solution Approach 1:
The device is segmented into a reusable primary body and a disposable secondary body. This segmentation allows the secondary body to be discarded after single use, ensuring hygiene compliance, while the primary body maintains a relatively simple structure with standardized attachment interfaces.
Solution Approach 2:
The secondary body is designed as a disposable, single-use component that can be easily attached and detached. This disposable design ensures hygiene compliance by eliminating cross-contamination risks, while the attachment mechanism remains simple due to the standardized interface between primary and secondary bodies.
3Ease of repair
If a separable secondary body is used, then cleaning ease is improved, but device complexity increases due to seal and connection requirements
Solution Approach 1:
The heat exchanger is segmented into separable primary and secondary bodies with standardized connection interfaces. This segmentation enables easy removal of the secondary body for cleaning while the connection structure includes integrated seals to maintain fluid tightness, balancing cleaning ease with acceptable structural complexity.
4Productivity
If impingement flow nozzles are added to enhance heat transfer, then heat transfer efficiency is improved, but device complexity increases
Solution Approach 1:
The impingement flow nozzles are merged into the secondary body, which is a disposable component. This combining of heat transfer enhancement features with the disposable secondary body allows efficient heat transfer through impingement flow while keeping the permanent primary body structure relatively simple.
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 device achieves improved heat transfer efficiency and simplified cleaning, ensuring reliable compliance with hygiene standards by using a separable secondary body that can be easily attached and detached, and optionally autoclaved for multiple use, reducing waste and maintaining sterility.
Implementation Method 1
the secondary body is attachable to the primary body and has nozzles for forming an impingement flow, which are directed in the direction of the primary body when the secondary body is attached to the primary body
Implementation Method 2
transfer of heat between a fluid and a transfer medium
Implementation Method 3
the secondary body is attachable to the primary body and has nozzles for forming an impingement flow
Data Source
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AI summary
Device for extracorporeal temperature control of patients, with heat transfer between a fluid and a transfer medium, with a primary circuit with a primary body (102, 201) for receiving the fluid, and a secondary circuit with a secondary body (104, 200) which includes connections (240, 242) for supplying and removing the transfer medium, wherein the secondary body (104, 200) is attachable to the primary body (102, 201) and has nozzles (206) for forming an impact flow which, when the secondary body (104, 200) is attached to the primary body (102, 201), is directed towards the primary body (102, 201).