Reciprocating Pump Fluid End Flange With Multi-Radius Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fluid ends of high pressure reciprocating pumps face challenges in efficiently and durably coupling the power end and fluid end due to limitations in access area design, leading to potential structural weakness and increased maintenance needs.
Innovation Solution
The fluid end is designed with a flange featuring multiple arcuate portions and access areas with distinct radii, separated by peaks, facilitating secure coupling and reducing material removal, thereby enhancing structural integrity and manufacturing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a traditional access area design is used in the flange, then the coupling process is simpler, but the structural rigidity and durability of the flange are reduced
Solution Approach 1:
The access area is divided into multiple discrete arcuate portions rather than forming a continuous opening. This segmentation allows the flange to maintain structural integrity while providing necessary access for coupler installation, resolving the contradiction between strength and accessibility.
Solution Approach 2:
Different regions of the flange are given different properties: the arcuate portions provide access while the peaks and inter-arcuate regions maintain structural rigidity. This local differentiation allows simultaneous optimization of both accessibility and structural strength.
2Ease of operation
If more material is removed to create larger access areas, then the ease of coupler installation is improved, but the structural integrity and durability of the flange are compromised
Solution Approach 1:
Instead of creating a single large access area that would compromise structural integrity, multiple smaller arcuate portions are provided. This partial action approach gives sufficient access for coupler installation while preserving the structural strength of the flange.
3Ease of manufacture
If a single radius access area is used, then the manufacturing process is simpler, but the structural distribution and load bearing capacity are reduced
Solution Approach 1:
The access area transitions from a symmetric single-radius design to an asymmetric multi-radius design with peaks and valleys. This asymmetry creates more favorable stress distribution patterns that improve load bearing capacity while remaining manufacturable through standard machining processes.
Data Source
AI summary
A method of manufacturing a fluid end of a reciprocating pump, the fluid end having a main body and a flange extending from the main body, includes positioning a cutting tool between a distal surface of the flange and the main body of the fluid end so that the cutting tool can form an access area in the flange, forming, with the cutting tool, a first arcuate cutout of the access area, and forming, with the cutting tool, a second arcuate cutout of the access area, the second arcuate cutout being discontinuous with the first arcuate cutout so that the access area includes multiple radii.