Steam Turbine System Chemical Injection for Efficiency
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Solution Overview
Problem
Existing steam turbine systems face inefficiencies in utilizing the heat of exhaust gases, leading to suboptimal performance.
Innovation Solution
The steam turbine system incorporates a chemical injection device that injects a chemical for reforming steam into the intermediate-stage steam supply line, enhancing the efficiency of steam utilization within the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If steam is supplied to intermediate stages of the steam turbine, then steam utilization efficiency is improved, but droplet formation and erosion occur causing energy loss
Solution Approach 1:
A chemical substance is introduced as an intermediary agent into the intermediate-stage steam supply line. This chemical acts as a mediator that modifies the physical properties of the steam, specifically suppressing droplet formation and reduction in steam quality, thereby enabling efficient steam utilization without the harmful braking losses associated with droplet erosion.
Solution Approach 2:
The invention changes the physical-chemical parameters of the steam by injecting a chemical substance that alters the steam's condensation characteristics. This parameter change prevents the phase transition issues that lead to droplet formation, maintaining steam quality while allowing intermediate-stage steam supply for improved efficiency.
2Reliability
If chemical substance is injected into intermediate-stage steam supply line, then steam quality is maintained, but device complexity increases
Solution Approach 1:
The chemical substance serves as a simple intermediary component that can be injected through a straightforward injection device into the existing steam supply line, maintaining steam quality without requiring complex system modifications.
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
This configuration improves the overall efficiency of the steam turbine system by optimizing steam utilization and reducing braking losses associated with droplet formation and erosion.
Implementation Method 1
a chemical injection device for injecting a chemical for reforming steam into the intermediate-stage steam supply line
Data Source
AI summary
The steam turbine system according to at least one embodiment of this disclosure comprises: a steam turbine; a main steam supply line which supplies steam to an upstream stage of the steam turbine; an intermediate-stage steam supply line which supplies the steam to an intermediate stage downstream of the upstream stage of the steam turbine; and an agent injection device which injects, into the intermediate-stage steam supply line, an agent for modifying the steam.