Modular Nozzle Insert for Incineration Plant Maintenance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing incineration plants require significant effort to replace nozzles due to their complex disconnection from the central supply and wall mounting, which complicates maintenance and the adjustment of gaseous medium flow behavior.
Innovation Solution
A modular nozzle design featuring a nozzle pipe connected to a common supply line and a separate outlet insert, where the welded joint is accessible for easy removal and replacement, allowing for interchangeable inserts with different flow properties to be welded onto the nozzle pipe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the nozzle is securely connected to the central supply and wall mounting, then the reliability of gaseous medium supply is improved, but the ease of maintenance and replacement is worsened
Solution Approach 1:
The nozzle is divided into two separable components: a nozzle body that remains permanently mounted in the combustion chamber wall, and a replaceable nozzle insert that can be removed and replaced. This segmentation allows the reliable connection to the wall mounting to be maintained while enabling easy maintenance by simply replacing the insert without affecting the permanent installation.
2Manufacturing precision
If the nozzle is designed as a single integrated unit, then the manufacturing precision is improved, but the adaptability for different flow properties is worsened
Solution Approach 1:
The nozzle is segmented into a permanent nozzle body and a replaceable nozzle insert. The insert can be manufactured with specific flow properties optimized for particular applications, while the same nozzle body serves as the structural foundation. This allows different inserts with varying flow characteristics to be used with the same nozzle body, achieving both manufacturing precision and adaptability.
Solution Approach 2:
The nozzle body is designed as a universal component that can accommodate multiple different nozzle inserts with varying flow properties. This multi-functionality allows the system to adapt to different operational requirements by simply changing the insert, while maintaining the same permanent installation structure.
3Manufacturing precision
If the welded joint is positioned inside the combustion chamber, then the manufacturing precision is improved, but the ease of repair is worsened due to inaccessibility
Solution Approach 1:
Instead of positioning the welded joint inside the combustion chamber for optimal manufacturing conditions, the design inverts the approach by placing the welded joint on the outer surface of the nozzle body, making it accessible for maintenance while still allowing precise welding during installation.
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 design simplifies the maintenance and replacement of nozzles, enabling quick changes to achieve desired flow properties without affecting the existing nozzle pipe's functionality, reducing maintenance efforts and allowing for adjustments in gaseous medium flow behavior.
Implementation Method 1
the outlet insert is connected to the nozzle pipe by a welded joint
Data Source
Figure 1
Figure 2
AI summary
The invention relates to an incineration plant for solid material having - a combustion material inlet (1) through which solid material can be introduced, - a combustion chamber (2) in which the solid material is introduced and in which the solid material is combusted, - a combustion grate (3) with which the solid material and combusted solid material can be conveyed through the combustion chamber (2), - a primary air supply below the top of the combustion grate (3), - at least one nozzle arranged above the combustion grate (3) with which a gaseous medium can be provided, the nozzle having a gas inlet and a gas outlet.