Modular Air-Cooled Condenser Assembly for Low Steam Pressure Drop

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current air cooled condenser towers face challenges in uniform steam distribution, leading to inefficiencies in heat transfer and increased turbine back pressure, and are labor-intensive and costly to assemble.

Innovation Solution

A modular mechanical draft cooling tower design with a vertical axis configuration, featuring multiple condenser bundle assemblies with steam manifolds and condensate headers, allowing for efficient steam distribution and reduced pressure drop, and pre-assembled modules for streamlined on-site assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a large surface area is provided in the condenser, then heat dissipation capability is improved, but steam side pressure drop increases thus increasing turbine back pressure and reducing efficiency

Engineering Contradiction:
Improveheat dissipation capabilityVSAvoidsteam side pressure drop
Core Design Contradiction:
TemperatureVSStress or pressure

Solution Approach 1:

The condenser is divided into multiple bundles arranged in a triangular pattern, with each bundle containing multiple tubes. This segmentation allows the steam to be distributed across multiple parallel flow paths, reducing the pressure drop in each individual path while maintaining a large total heat transfer surface area. The modular bundle structure enables efficient heat dissipation without proportionally increasing the steam side pressure drop.

Inventive Principle:
Principle #1Segmentation

2Temperature

If a large surface area is provided in the condenser, then heat dissipation capability is improved, but uniform steam distribution becomes difficult to achieve

Engineering Contradiction:
Improveheat dissipation capabilityVSAvoidsteam distribution uniformity
Core Design Contradiction:
TemperatureVSStability of the object's composition

Solution Approach 1:

The condenser design incorporates a steam distribution system with multiple inlet ports positioned at different locations to ensure uniform steam distribution across the entire condenser surface. The triangular arrangement of bundles and the strategic placement of distribution manifolds create localized optimization of steam flow, ensuring that each region of the large surface area receives appropriate steam flow for efficient heat transfer.

Inventive Principle:
Principle #3Local quality

3Strength

If traditional assembly methods are used for air cooled condenser towers, then structural integrity is maintained, but assembly time and costs increase significantly

Engineering Contradiction:
Improvestructural integrityVSAvoidassembly time
Core Design Contradiction:
StrengthVSLoss of time

Solution Approach 1:

The condenser bundles are pre-assembled and pre-configured in a triangular pattern during manufacturing, with all necessary connections and support structures prepared in advance. This preliminary assembly allows the condenser to be installed as a pre-fabricated module, dramatically reducing on-site assembly time while maintaining structural integrity through factory-controlled welding and connection processes.

Inventive Principle:
Principle #10Preliminary action

4Temperature

If traditional condenser design is used, then heat exchange function is provided, but labor intensity and assembly costs are high

Engineering Contradiction:
Improveheat exchange functionVSAvoidassembly labor intensity
Core Design Contradiction:
TemperatureVSEase of manufacture

Solution Approach 1:

The condenser is designed as a modular system with standardized bundles that can be manufactured separately and assembled in a triangular configuration. This segmentation enables parallel manufacturing of multiple bundles, reducing overall production time and labor requirements. The modular design also facilitates easier maintenance and replacement, further reducing long-term operational costs.

Inventive Principle:
Principle #1Segmentation

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 design achieves improved heat exchange efficiency by reducing steam pressure drop and turbine back pressure, while significantly reducing assembly time and costs through modular, pre-fabricated components.

Implementation Method 1

Dry cooling towers dissipate heat by conduction and convection

Methodology Applied
Scientific EffectConduction: Conduction (thermal)

Implementation Method 2

Dry cooling towers dissipate heat by conduction and convection

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 3

mechanical draft cooling tower that utilizes air cooled condenser modules. The aforementioned cooling tower operates by mechanical draft and achieves the exchange of heat between two fluids such as atmospheric air

Methodology Applied
Scientific EffectMechanical draft:

Data Source

PatentUS11662146B2Modular air cooled condenser apparatus and method
Publication Date: 2023.05.30 SPX DRY COOLING USA LLC
  • US11662146B2 patent drawing
  • US11662146B2 patent drawing
  • US11662146B2 patent drawing

AI summary

Modular air cooled condenser apparatus and related methods are disclosed. An example mechanical draft modular air cooled condenser includes a first condenser bundle panel, a second condenser bundle panel, a third condenser bundle panel, and a fourth condenser bundle panel. The example condenser also includes a fan positioned to create a draft to flow over the first, second, third, and fourth condenser bundle panels.