Modular Counterflow Cooling Tower With Redundant Heat Sections
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Solution Overview
Problem
Existing cooling towers face challenges in efficiently cooling hot process water while allowing for modular assembly and redundancy in case of section damage, with complex assembly processes and potential disruption during maintenance.
Innovation Solution
A modular counterflow cooling tower design comprising pre-fabricated sections that can be easily assembled on-site, featuring independent heat transfer and fan modules with a central support, a single inlet manifold for hot process water distribution, and redundant heat transfer sections for continuous operation during maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a modular design with multiple heat transfer sections is used, then reliability is improved through redundancy, but device complexity increases due to multiple sections and assembly requirements
Solution Approach 1:
The cooling tower is divided into multiple independent heat transfer sections (first heat transfer section and second heat transfer section), each capable of operating independently. This segmentation allows the system to maintain functionality even when one section is damaged or under maintenance, thereby improving reliability while managing complexity through standardized modular units.
Solution Approach 2:
The system allows dynamic adjustment of water flow distribution between heat transfer sections using flow control valves. By changing the flow parameters dynamically, the system can optimize performance under different operating conditions and maintain reliability even when sections are taken offline for maintenance.
2Ease of manufacture
If pre-fabricated modular sections are used, then ease of manufacture is improved, but assembly complexity increases due to multiple components
Solution Approach 1:
Each heat transfer section is pre-fabricated as a complete modular unit including heat transfer media, water distribution system, and support structure. This segmentation allows manufacturing to occur in controlled factory environments, improving ease of manufacture while the standardized interfaces simplify on-site assembly despite the multiple components.
Solution Approach 2:
The modular sections are pre-assembled and pre-configured at the manufacturing location before shipping to the installation site. This preliminary action includes installing heat transfer media, configuring water distribution systems, and preparing connection interfaces, which significantly reduces on-site assembly complexity and accelerates installation.
3Device complexity
If a single inlet manifold system is used, then device complexity is reduced, but manufacturing precision requirements increase for water distribution
Solution Approach 1:
The single inlet manifold system serves multiple heat transfer sections simultaneously, reducing the number of separate water distribution systems needed. This multi-functionality simplifies the overall device complexity while the modular design of the manifold allows for standardized manufacturing with built-in flow balancing features that accommodate precision requirements.
Solution Approach 2:
The inlet manifold system incorporates adjustable flow control valves and regulators that allow dynamic adjustment of water flow parameters to each heat transfer section. This capability compensates for manufacturing tolerances and ensures uniform water distribution across all sections, meeting precision requirements while maintaining system simplicity.
4Ease of repair
If heat transfer sections are supported independently by basin sections, then ease of repair is improved through isolation, but device complexity increases due to support structure requirements
Solution Approach 1:
Each heat transfer section is structurally independent and supported by its own cold water basin section, creating discrete functional units. This segmentation allows any damaged section to be isolated and removed without affecting the structural integrity or operation of other sections, significantly improving ease of repair despite the additional support structure requirements.
Solution Approach 2:
The independent support structure for each heat transfer section allows the heat transfer section to be completely extracted from the system for repair or replacement. The basin section and its support structure remain in place, enabling the heat transfer section to be removed and replaced as a complete module without disturbing the underlying support infrastructure.
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
Facilitates efficient cooling of hot process water with simplified assembly, modular construction, and continuous operation even when one section is damaged, enhancing reliability and reducing downtime.
Implementation Method 1
the fan draws air into the plenum of the cold water basin sections via air inlets provided on the external facing sides and/or ends of the cold water basin sections, up through the heat transfer media of the heat transfer sections, and out the top of the device
Implementation Method 2
Heated process water is delivered to the device via the single process water inlet and delivered to the water distribution systems located over the fill media where it is cooled in direct heat exchange with the air moving through the fill media
Implementation Method 3
the cooled water draining from each heat transfer section falls into a separate cold water basin section
Data Source
AI summary
A single inlet/single outlet modular counterflow cooling tower having two heat transfer sections installed atop two cold water basin sections and below three fan sections, each heat transfer section having its own water distribution system and draining into its own distinct cold water basin section. The water distribution system can provide flow over both heat transfer sections or over only a single section. The center fan support section supports the mechanical drive system for the fan and has a sealing plate at its bottom for sealing the gap between the two heat transfer sections.