Compressor Anticorrosion via Condensate Water Dosing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Gas turbine engines face contaminant accumulation on compressor blades and vanes, leading to performance degradation and increased operating costs, with existing water wash systems being complex and requiring downtime for offline washes.
Innovation Solution
A compressor anticorrosion treatment system utilizing condensate or boiler feed water with a dosing system and temperature and concentration management to deliver a controlled flow of anticorrosion agents, integrated with existing designs to minimize downtime and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If water wash systems are used to remove contaminants from compressor blades and vanes, then contaminant accumulation is reduced, but system complexity increases and downtime is required for offline washes
Solution Approach 1:
The patent combines the water wash system with the condensate or boiler feed water system, merging two separate systems into one integrated approach. The dosing system injects anticorrosion agents into the existing water system, eliminating the need for separate wash infrastructure and reducing overall system complexity while maintaining contaminant removal effectiveness
Solution Approach 2:
The condensate or boiler feed water system is given multiple functions: it serves both as a cooling medium and as a carrier for anticorrosion agents, while also participating in the contaminant removal process. This multi-functionality reduces the need for dedicated wash system components and infrastructure
2Reliability
If offline water wash systems are used to remove contaminants, then contaminant removal effectiveness is improved, but operational downtime increases
Solution Approach 1:
The system performs preliminary anticorrosion treatment by continuously dosing anticorrosion agents into the water system during normal operation. This preliminary protection prevents corrosion before it occurs, eliminating the need for extensive offline wash procedures and reducing downtime requirements
Solution Approach 2:
The dosing system operates continuously during gas turbine operation, maintaining constant protection and contaminant removal without interrupting the power generation process. This continuous action eliminates the need to stop operations for offline washes, maintaining uninterrupted useful work
3Reliability
If traditional passivation treatments are applied to compressor components, then corrosion resistance is improved, but treatment complexity and downtime increase
Solution Approach 1:
The system uses the gas turbine's own condensate or boiler feed water system to deliver anticorrosion agents to the compressor components. The existing water system serves itself by being modified to include dosing capability, eliminating the need for external passivation treatment systems and reducing overall complexity
Solution Approach 2:
The system changes the chemical parameters of the water system by dosing anticorrosion agents into the condensate or boiler feed water. This parameter modification transforms the water from a simple cooling medium into an active protective solution, improving corrosion resistance without requiring separate passivation treatment systems
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 removes contaminants, reduces compressor blade erosion, and forms a passivation layer, enhancing component lifetime and operational efficiency without extending outages.
Implementation Method 1
passivation involves processes and techniques to treat a metal alloy to become less effected by the prevailing factors in the environment. Metal passivation generally involves a predetermined combination of water based anticorrosion chemicals to develop a micro-coating that forms a shielding outer layer so as to inhibit deeper corrosion of the metal
Implementation Method 2
The nozzles may create a spray mist of water droplets in this region of relatively low velocity air such that the negative pressure produced by the compressor may draw the spray mist therein and into contact with the compressor blades, vanes, and other components
Implementation Method 3
The nozzles may create a spray mist of water droplets in this region of relatively low velocity air such that the negative pressure produced by the compressor may draw the spray mist therein and into contact with the compressor blades, vanes, and other components
Data Source
AI summary
The present application provides a gas turbine engine. The gas turbine engine may include a compressor, a compressor wash system in communication with the compressor, a condensate or boiler feed water system in communication with the compressor, and a dosing system in communication with the condensate or boiler feed water system.