Horizontal Venturi Burner Orifice Holder for Precise Alignment
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Solution Overview
Problem
Existing horizontal venturi burner designs face challenges in attaching the orifice to the venturi due to complex machining requirements, limiting the effective introduction of gas and air mixtures and resulting in suboptimal burner performance.
Innovation Solution
A horizontal venturi construction featuring an orifice holder with opposing flats that are retained within recessed areas of the burner venturi pot sections, preventing rotation and ensuring proper alignment and spacing, allowing for easy attachment without the need for machining the venturi pot sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a horizontal venturi construction is used to allow better gas and air mixing, then burner performance is improved, but the attachment of the orifice becomes complex requiring machining or complicated machined components and brackets
Solution Approach 1:
The venturi pot is divided into separate sections (top and bottom sections) that can be assembled together, with the orifice holder integrated into one section. This segmentation allows the orifice attachment to be simplified while maintaining the horizontal venturi configuration for proper gas mixing.
Solution Approach 2:
An orifice holder is introduced as an intermediary component between the orifice and the venturi pot sections. This holder features opposing flats that engage with recessed areas in the venturi pot sections, providing a simple mechanical attachment system that eliminates the need for complex machining or brackets.
2Ease of manufacture
If vertical orientation is used for the orifice, then manufacturing cost is reduced, but the amount of gas and air mixture that can be introduced is limited
Solution Approach 1:
The design transitions from a vertical orifice orientation to a horizontal venturi configuration, utilizing the horizontal dimension for the venturi length while maintaining simple manufacturing through the segmented pot design with integrated orifice holder. This dimensional change allows greater gas and air mixture introduction without sacrificing manufacturing simplicity.
3Manufacturing precision
If machining of venturi pot sections is performed to attach the orifice, then precise orifice placement is achieved, but manufacturing complexity and costs increase
Solution Approach 1:
The orifice holder is pre-formed with opposing flats that are designed to engage with corresponding recessed areas in the venturi pot sections. This preliminary preparation of the holder geometry allows for precise orifice placement through simple assembly rather than requiring complex machining operations on the venturi pot sections themselves.
Solution Approach 2:
The orifice holder serves as a simple, easily manufactured component that can be produced through casting or forming processes rather than expensive machining. This disposable-like approach to the attachment component achieves precise positioning without the high manufacturing complexity and costs associated with machined features on the main venturi pot sections.
Data Source
AI summary
A horizontal venturi burner has at least one burner ring, if not several, supplied by respective ports which supply air/fuel mixture thereto. The ports are directed at orifice holders which are received in receivers preferably formed in cast top and bottom pots. The receivers may have openings on either side which allow single direction installation of the holders and preferably prevent rotation by having adjacent and cooperating flats/faces therein, as well as openings which properly position the holders in a desired axial arrangement.