Serpentine Cooling Tower Support Beam Prevents Deflection
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Solution Overview
Problem
The existing support systems for cooling towers, particularly those using splash fill, face issues with beam deflection and rotation due to the tangential load from falling water, leading to inefficient operation or failure, as they are not durable or economical enough to handle the stress effectively.
Innovation Solution
A serpentine-shaped structural support beam with a C-channel configuration, featuring notches for wire members and made from durable materials like stainless steel or fiber-reinforced polymers, is designed to securely suspend hanger grids and splash bars, distributing the load evenly and preventing position alteration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a traditional support beam with side-mounted bracket is used, then the structure is simple to manufacture, but the beam deflects and rotates under tangential water load
Solution Approach 1:
The bracket is repositioned from the side of the beam to the bottom surface, changing the spatial dimension of load application. This dimensional change allows the load to be applied perpendicular to the beam's longitudinal axis, preventing tangential forces that cause deflection and rotation.
Solution Approach 2:
The bracket is pre-attached to the bottom surface of the beam during manufacturing, creating a fixed, integrated support structure before installation. This preliminary action ensures proper alignment and prevents installation errors that could lead to beam rotation.
2Reliability
If lumber is used as support beam material, then the material is economical, but it lacks durability under significant water stress
Solution Approach 1:
The support beam transitions from traditional lumber to composite or engineered materials such as fiberglass-reinforced polymers or laminated wood composites. These materials provide enhanced strength-to-weight ratios and durability while resisting water-induced degradation, making them suitable for high-stress cooling tower applications.
3Stability of the object's composition
If the hanger grid is suspended from a side-mounted bracket, then installation is simple, but the tangential load causes beam rotation and splash bar position alteration
Solution Approach 1:
The mounting surface for the bracket changes from the side of the beam to the bottom surface. This dimensional change reorients the load path so that gravitational and water forces act perpendicular to the beam axis, eliminating tangential components that cause rotation and maintain stable splash bar positioning.
Solution Approach 2:
The problematic tangential load component is effectively removed from the system by changing the bracket orientation. By extracting the rotational force vector through geometric reconfiguration, the system eliminates the source of beam rotation and position instability.
Data Source
AI summary
A support beam for a cooling tower fill assembly includes a web, an upper flange, a lower flange, and a lip. The web has a serpentine shape so a lower end of the web is vertically offset relative to an upper end. The upper flange extends from a first side of the web at the upper end thereof. The lower flange has a first portion extending from the first side at the lower end thereof and a second portion extending from a second side at the lower end thereof. The lip extends upwardly from the second portion so the lip cooperates with the second portion and a portion of the web to form a longitudinal channel. The lip and the second portion are provided with a plurality of spaced apart notches.