Louvers for cooling tower, cooling tower systems, and methods of preventing cooling tower from freezing

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Solution Overview

Problem

Conventional cooling tower louvers fail to maintain adequate air intake while preventing rainwater ingress and are complex to regulate, leading to potential freezing damage during winter months.

Innovation Solution

A cooling tower louver system with an adjustment module and fixing module, including length and angle adjustment assemblies, and a method that involves uniformly setting return water temperature and closing louvers based on ambient and return water temperature thresholds to prevent freezing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the cooling tower louver remains partially open to maintain air intake, then the cooling tower can release heat during daytime, but rainwater can infiltrate the cooling tower and freeze overnight, potentially damaging the equipment

Engineering Contradiction:
Improveheat release capabilityVSAvoidrainwater infiltration and freezing damage
Core Design Contradiction:
TemperatureVSObject-affected harmful factors

Solution Approach 1:

The louver is designed with adjustable angle and length capabilities, allowing it to dynamically change its configuration based on environmental conditions. During daytime, the louver can be positioned at an optimal angle for heat release, while during nighttime or rainy conditions, it can be adjusted to a closed position to prevent rainwater infiltration and freezing damage.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The louver system enables parameter changes in its geometric configuration (angle and length) to adapt to different operational requirements. By varying the louver angle and extension length, the system can optimize heat release during warm periods while preventing harmful rainwater ingress during colder or rainy periods.

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If the cooling tower louver is closed completely to prevent rainwater ingress, then rainwater infiltration is prevented, but the cooling tower cannot release heat during daytime

Engineering Contradiction:
Improverainwater infiltration preventionVSAvoidheat release capability
Core Design Contradiction:
Object-affected harmful factorsVSTemperature

Solution Approach 1:

The adjustable louver design allows the system to dynamically switch between open and closed states based on real-time environmental conditions. When rain detection or temperature sensors indicate rainy or cold conditions, the louver closes to prevent water ingress while maintaining the ability to open for heat release during warmer periods.

Inventive Principle:
Principle #15Dynamics

3Reliability

If existing anti-freezing measures are implemented, then freezing protection is provided, but the system becomes intricate and challenging to regulate and control

Engineering Contradiction:
Improvefreezing protectionVSAvoidsystem regulation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The louver system incorporates sensors (temperature, rain detection) that automatically trigger appropriate louver positions without requiring complex manual control systems. The system serves itself by detecting environmental conditions and autonomously adjusting the louver state, thereby providing reliable freezing protection while maintaining simple operation and control.

Inventive Principle:
Principle #25Self-service

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 system effectively maintains air intake while minimizing rainwater ingress and simplifies anti-freezing strategies, reducing the risk of equipment damage from freezing.

Implementation Method 1

an adjustment shaft, an adaptive component, and an adjustment plate, in which the adaptive component is positioned on the adjustment shaft

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

A cooling tower serves to cool water through indirect contact between air and water, utilizing water as a circulating coolant to absorb and dissipate heat into the atmosphere

Methodology Applied
Scientific EffectHeat transfer: Convection

Data Source

PatentUS20240310132A1Louvers for cooling tower, cooling tower systems, and methods of preventing cooling tower from freezing
Publication Date: 2024.09.19 INNER MONGOLIA HELIN POWER GENERATION CO LTD
  • US20240310132A1 patent drawing
  • US20240310132A1 patent drawing
  • US20240310132A1 patent drawing

AI summary

A cooling tower louver, including an adjustment module and a fixing module, is provided. Particularly, the adjustment module includes length adjustment assemblies, an angle adjustment assembly, and coupling assemblies, in which the angle adjustment assembly is positioned above the length adjustment assemblies, the coupling assemblies are positioned on a side of the angle adjustment assembly. Furthermore, the fixing module includes slat assemblies and a framework, in which the slat assemblies are located in the framework. Through the collaborative efforts of the adjustment module and the fixing module, it's possible to maintain the cooling tower's air intake capacity while minimizing the ingress of rainwater during wet conditions. The cooling tower system effectively mitigates the risk of equipment damage due to freezing during the winter season. Moreover, the anti-freezing method for the cooling tower streamlines the anti-freezing strategy and offers enhanced convenience in terms of regulation and control.