Superheated steam generator and maintenance method therefor
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Superheated steam generators using austenitic stainless steels and alloys face volume reduction due to steam oxidation, leading to conductor tube damage and potential leaks, which can cause fires and injuries, as existing technologies do not effectively address the maintenance timing and deterioration of these components.
Innovation Solution
A superheated steam generator with an informing section that transmits maintenance information based on operating temperature and time, correcting for volume reduction rates and steam flow rates to notify users of necessary maintenance before component failure, specifically targeting the conductor tube replacement timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the superheated steam generation section operates at high temperatures exceeding 1000°C, then the steam generation efficiency is improved, but volume reduction occurs due to steam oxidation causing conductor tube damage
Solution Approach 1:
The informing section performs preliminary monitoring of operating temperature and accumulated operating time, and issues maintenance alerts before the conductor tube actually fails. This allows proactive replacement scheduling rather than reactive response after damage occurs.
Solution Approach 2:
The system continuously monitors operating temperature and accumulates operating time data, providing feedback about the degradation state of the conductor tube. This feedback loop enables informed decision-making regarding maintenance timing.
2Productivity
If the conductor tube is operated for extended periods, then the productivity is improved, but the conductor tube deteriorates due to cumulative oxidation damage
Solution Approach 1:
The system calculates accumulated operating time and compares it against predetermined thresholds to trigger maintenance alerts before the conductor tube reaches its failure point, enabling planned replacement that maximizes utilization while preventing failure.
Solution Approach 2:
The informing section automatically tracks and monitors the conductor tube's operating conditions and service life without requiring external intervention, generating maintenance alerts autonomously based on accumulated data.
3Reliability
If maintenance is performed frequently, then the reliability is improved, but the operational time and productivity are reduced
Solution Approach 1:
The system uses operating temperature and accumulated operating time as key parameters to dynamically determine maintenance timing. By monitoring these parameters and triggering maintenance only when thresholds are exceeded, the system optimizes the balance between reliability and operational time.
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
Enables timely maintenance to prevent component failure, reducing the risk of accidents and extending the useful lifespan of the steam generator by informing users when maintenance is required, thereby ensuring safe operation and minimizing downtime.
Implementation Method 1
an induction heating type or electrically heating type superheated steam generation section configured to generate superheated steam by heating steam
Implementation Method 2
an induction heating type or electrically heating type superheated steam generation section configured to generate superheated steam by heating steam
Implementation Method 3
volume reduction may occur due to steam oxidation in superheated steam having high temperatures exceeding 1000°C
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention is intended to inform a user of a maintenance timing for a superheated steam generator. The present invention includes an induction heating type or electrically heating type superheated steam generation section and an informing section. The superheated steam generation section generates superheated steam by heating steam. The informing section transmits maintenance information by employing, as a parameter, an operating temperature of the superheated steam generation section and an operating time at the operating temperature.