Reinforced Guide Profile for Low-Deflection Nozzle Rack Cleaning
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Solution Overview
Problem
Existing cleaning devices for heat exchangers face challenges in maintaining the structural integrity of guide profiles, leading to costly and heavy cross-sections due to deflection under the weight of the nozzle-carrier rack, which affects the efficiency and cost-effectiveness of the cleaning process.
Innovation Solution
The introduction of a rigidification device with curved metal beams under tension, fastened to the guide profile at discrete positions using plates, which reduces the need for a thick cross-section by providing additional structural support without increasing weight or cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the guide profile cross-section is increased to limit deflection under the weight of the truck for a nozzle-carrier rack, then the structural integrity and stability are improved, but the weight and manufacturing cost increase significantly
Solution Approach 1:
The guide profile is segmented into discrete sections with individual support elements positioned at specific intervals along its length. This segmentation allows the profile to maintain stability through distributed support points while keeping each section lightweight, avoiding the need for a continuously heavy cross-section.
Solution Approach 2:
The guide profile employs a composite construction combining a lightweight base profile with strategically positioned reinforcement elements. This composite approach provides enhanced structural integrity at critical locations while maintaining overall lightness, resolving the contradiction between stability and weight.
2Strength
If the guide profile cross-section is increased to limit deflection, then the strength and load-bearing capacity are improved, but the manufacturing cost increases
Solution Approach 1:
Rather than manufacturing a uniformly heavy profile, the solution segments the strengthening function into discrete reinforcement elements positioned only where needed. This reduces material consumption and manufacturing complexity while maintaining adequate strength through targeted reinforcement.
Solution Approach 2:
The guide profile implements local quality by providing enhanced structural properties only at specific locations where loads are applied or where deflection is critical. The majority of the profile maintains a lighter, more economical cross-section, reducing overall manufacturing cost while preserving necessary strength.
3Manufacturing precision
If a rigid guide profile is used to support the truck for a nozzle-carrier rack, then the deflection is reduced and positioning accuracy is improved, but the device complexity and material usage increase
Solution Approach 1:
The guide profile structure is segmented into a simple base profile with discrete, easily installed reinforcement elements. This segmentation maintains device simplicity while achieving the positioning precision needed for accurate truck movement along the profile.
Solution Approach 2:
Rather than complicating the entire guide profile structure, local quality enhancements are applied only at critical support points. This maintains overall structural simplicity and ease of assembly while providing the localized rigidity necessary for precise positioning accuracy.
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 solution allows for a more compact and cost-effective guide profile design that maintains structural integrity, reducing deflection and enabling efficient movement of the nozzle-carrier rack while minimizing material usage and weight.
Implementation Method 1
said at least one guide profile includes a rigidification device including at least one rigidification beam extending along said at least one guide profile... said at least one rigidification beam is a metal beam which is maintained curved under tension in the elastic zone of the metal beam
Implementation Method 2
said at least one rigidification beam is a metal beam which is maintained curved under tension in the elastic zone of the metal beam
Data Source
AI summary
A device for cleaning surfaces, mobile, in particular for the cleaning of the cooling elements of an exchanger, including a truck for a nozzle-carrier rack, intended to be disposed in a movable manner facing the surface to be cleaned, carrying a nozzle-carrier rack, with one or more nozzles spraying the surface to be cleaned, and a guide system including, on the one hand, at least one guide profile on which the truck for a nozzle-carrier rack moves, acting as a path for the truck during its movement in the direction of the guide profile, and on the other hand, bearing members of the truck moving on the at least one profile, and wherein the at least one guide profile is rigidified by at least one rigidification beam, under elastic tension, rigidly connected in several discrete positions by fastening plates to the guide profile.