Heat exchanging apparatus
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Solution Overview
Problem
Conventional falling liquid film heat exchanging apparatuses with attached heat transfer medium circulation pipes face difficulties in cleaning and maintenance, and the fixing structure hinders efficient heat exchange performance.
Innovation Solution
A heat exchanging apparatus with a boxy case and a heat exchange unit featuring a spirally wound heat transfer medium circulation pipe fixed to a lid member via a frame body, allowing the pipe to be easily withdrawn for maintenance and ensuring uniform contact for enhanced heat exchange efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the heat transfer medium circulation pipe is attached to the housing, then the structure is stable and fixed, but cleaning and maintenance become difficult
Solution Approach 1:
The heat transfer medium circulation pipe is divided into a fixed end (attached to housing) and a movable end (attached to lid member). This segmentation allows the pipe to maintain structural stability through the fixed connection while enabling easy removal and cleaning by moving the lid member, thus resolving the contradiction between structural stability and maintenance accessibility.
Solution Approach 2:
The connection between the heat transfer medium circulation pipe and the lid member is made movable rather than fixed. When the lid member moves between open and closed positions, the pipe can be withdrawn for cleaning or inserted for operation. This dynamic connection resolves the contradiction by providing both stability during operation and accessibility during maintenance.
2Reliability
If the heat transfer medium circulation pipe is fixed with a complex fixing structure, then the pipe is securely attached, but heat exchange efficiency is reduced
Solution Approach 1:
The fixing structure is segmented into a simple frame body that provides minimal necessary support rather than a complex rigid structure. This segmentation allows the pipe to be securely attached where needed while maintaining freedom of movement and uniform contact with the liquid film, thereby resolving the contradiction between attachment security and heat exchange efficiency.
Solution Approach 2:
The frame body provides localized support at specific points rather than rigid fixed support throughout. This local quality approach ensures the pipe remains securely attached at critical locations while allowing other portions to flex and maintain uniform contact with the liquid film, improving heat exchange efficiency without compromising attachment security.
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
This configuration simplifies cleaning and maintenance while improving heat exchange efficiency by ensuring uniform distribution and contact between the heated fluid and the heat transfer medium, reducing labor and enhancing heat recovery efficiency.
Implementation Method 1
exchange heat with a heat transfer medium circulating in the heat transfer medium circulation pipe while dropping heated fluid from the falling through hole to be distributed and flown down in the liquid film form following an outer surface of the heat transfer medium circulation pipe
Implementation Method 2
dropping heated fluid from the falling through hole to be distributed and flown down in the liquid film form following an outer surface of the heat transfer medium circulation pipe
Data Source
AI summary
A case of a heat exchanging apparatus includes an opening section provided on the sidewall and a plate-like lid member for opening and closing the opening section. A heat exchange section of a heat transfer medium circulation pipe is fixed to the inner surface of a lid member via a frame body formed by combining bar-like members. When the lid member is at a position where the opening section is closed, the heat exchange section of the heat transfer medium circulation pipe is housed fixedly in the case, and when the lid member is at a position where the opening section is open, the heat exchange section of the heat transfer medium circulation pipe is withdrawn from the opening section out of the case. This can reduce labor for cleaning and maintenance of the apparatus effectively and improve efficiency of heat exchange of the apparatus.