Segmented Burner Lance Maintenance in Confined Spaces
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Solution Overview
Problem
The maintenance of burner lances in boiler houses is limited by the need for sufficient space between the furnace and the boiler house, as lengthy burner lances cannot be withdrawn if the space is too small, restricting the size of the boiler house and its output.
Innovation Solution
The burner lance is designed to be detachable into shorter parts, utilizing an openable fastener to separate and reattach components, allowing for maintenance in confined spaces by detaching a part of the lance from the nozzle and withdrawing it from the furnace.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the burner lance is made lengthy to reach the furnace, then the delivery function is improved, but the maintenance accessibility deteriorates
Solution Approach 1:
The burner lance is divided into multiple separable sections (first section, second section, third section) that can be detached from each other. This allows the lance to be assembled into a long configuration for furnace operation, then disassembled into shorter segments for maintenance, resolving the contradiction between needing length for delivery and needing short segments for accessibility.
2Area of stationary object
If the boiler house size is reduced to improve space efficiency, then the compactness is improved, but the maintenance space availability deteriorates
Solution Approach 1:
By segmenting the burner lace into detachable sections, the invention enables maintenance in confined spaces. The sections can be detached and removed through smaller openings that would be insufficient for a complete-length lance, thus allowing compact boiler house design while preserving maintenance accessibility.
3Ease of repair
If the burner lance is made detachable into parts, then the maintenance accessibility is improved, but the device complexity increases
Solution Approach 1:
The attachment and detachment mechanism merges the functionality of connection and disconnection into a single integrated system. The first openable fastener and second openable fastener combine sealing, mechanical attachment, and detachment functions, simplifying the overall mechanism despite the multi-section structure.
Solution Approach 2:
The openable fasteners serve multiple functions: they provide mechanical attachment between sections, ensure sealing through integrated seals, and enable controlled detachment for maintenance. This multi-functionality reduces the need for separate components for each function, offsetting the complexity of having multiple sections.
Data Source
Figure 1a
Figure 1b~1c
Figure 1d~1e
AI summary
A burner (400) comprising a burner lance (200) having a first part (200a) and a second part (200b). The burner lance (200) comprises a first openable fastener (320) for fastening the first part (200a) to the second part (200b) and for detaching the second part (200b) from the first part (200a). The first part (200a) comprises a first part (210a) of an inner pipe (210) and a first part (220a) of an outer pipe (220). The first part (200a) is attachable or attached to a nozzle (310). The second part (200b) comprises a second part (210b) of the inner pipe (210) and a second part (220a) of the outer pipe (220). The burner lance (200) comprises first and second inlets (201, 202) for letting in the first and second fluids into the inner pipe (210) and the outer pipe (220). The burner (400) comprises a protective pipe (410) laterally surrounding the burner lance (200) such that such that the first openable fastener (320) is arranged within the protective pipe (410). A method for maintaining a burner lance (200), the method comprising detaching a second part (200b) of the burner lance (200) from a first part (200a) of the burner lance (200), and thereafter maintaining or replacing at least one of the nozzle (310) and the first part (200a) of the burner lance (200).