Heat Exchanger Impact Block for Rapper Cleaning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing heat exchange devices in gasification processes face challenges in effectively cleaning deposit-forming gases while maintaining resistance against impact loads from rapper devices, which can cause damage and leakage.
Innovation Solution
A heat exchange device with integrated impact blocks having inner channels that bridge interrupted tubular lines, allowing for efficient transfer of impact energy and mechanical waves, enhancing cleaning effectiveness and durability while maintaining coolant flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the heat exchange surface is cleaned using rapper devices, then cleaning effectiveness is improved, but the heat exchange surface is damaged due to high peak loads from impact
Solution Approach 1:
The impact block serves as an intermediary element between the rapper device and the heat exchange surface. It absorbs and distributes the impact loads from the rapper, preventing direct high peak loads on the tubular lines while still enabling effective cleaning through mechanical waves and vibrations transmitted through the block to the heat exchange surface.
Solution Approach 2:
The impact block is strategically positioned at specific locations on the heat exchange surface where cleaning is most needed. By concentrating the impact energy at these localized areas, the design achieves effective cleaning at critical spots without subjecting the entire heat exchange surface to damaging high peak loads.
2Ease of operation
If the impact block is made very rigid and stiff to improve impact transfer, then cleaning effect is improved, but the risk of damage and leakage increases
Solution Approach 1:
The impact block incorporates damping elements or materials with specific mechanical properties that allow it to be sufficiently rigid to transmit cleaning vibrations effectively, while also having energy-dissipating characteristics to reduce peak impact loads. This parameter optimization balances cleaning effectiveness with damage prevention.
Solution Approach 2:
The impact block is designed with inherent shock-absorbing characteristics that cushion the impact before it reaches the heat exchange surface. This beforehand cushioning reduces the peak loads transmitted to the tubes while still maintaining sufficient vibration energy for effective cleaning.
3Power
If tubular lines are interrupted at the impact area to allow impact block integration, then impact energy transfer is improved, but coolant flow paths are obstructed
Solution Approach 1:
The impact block is divided into multiple sections with individual channels for each interrupted tubular line. This segmentation allows each coolant flow path to be maintained separately through the impact block, preventing obstructions while enabling effective impact energy transfer to each tubular line segment.
Solution Approach 2:
The impact block channels are designed to route coolant flow in alternative paths through the block structure, effectively moving the flow to another dimension or plane. This allows the coolant to bypass the impact area while still cooling the heat exchange surface, maintaining flow quantity without obstructing the cooling function.
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 solution provides improved resistance to impact loads, effective cleaning, and increased lifetime of the heat exchange surface by translating impact energy into mechanical waves, ensuring efficient cooling and reduced risk of damage.
Implementation Method 1
the impact block translates the impact energy caused by a rapper device very effectively into mechanical waves through the heating surface
Implementation Method 2
The inner channels can be made with the same diameter as the flow paths in the tubular lines so that the flow paths are continued via the inner channels in the impact block without substantial obstructions. This design allows for effective cooling of the impact block by allowing coolant to flow unimpeded through the impact block.
Data Source
Figure 1~3B
Figure 4A~4B
Figure 5A~5B
AI summary
A heat exchange device comprising at least one heat exchange surface (2), wherein the heat exchange surface comprises one or more parallel tubular lines (3), a rapper device and an impact area for the rapper device. The impact area comprises an impact block (6) with one or more inner channels (7) through which coolant flows bridging opposite open ends (5) of an interrupted tubular line of the heat exchange surface. The impact block (6) enforces the impact area of the heat exchange surface and translates impact energy caused by a rapper device very effectively into mechanical waves through the heating surface, resulting in an improved cleaning effect.