Split Housing Centrifugal Pump Eliminates Thrust Load Friction
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Solution Overview
Problem
Conventional centrifugal pumps face issues with thrust load problems due to friction between the impeller and housing, require lubrication and maintenance, and have limitations in handling various fluid types and flow rates.
Innovation Solution
A centrifugal pump design with a split pump housing and an impeller having outwardly extending vanes, mounted on a drive shaft with bearing means, allowing for equal pressure on both sides and reducing friction, enabling the pump to operate wet or dry, and handle different types of fluids without direct mounting to the housing, thus eliminating thrust loads and maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the impeller is directly mounted to the pump housing, then the pump structure is simplified, but thrust load problems occur due to friction between the impeller and housing
Solution Approach 1:
The pump is divided into two separate functional components: the impeller assembly (mounted on drive shaft with bearing means) and the pump housing. This segmentation eliminates direct contact between the impeller and housing, resolving the thrust load friction problem while maintaining structural integrity through proper component interfaces.
2Productivity
If conventional centrifugal pumps are used, then they can move fluids, but they require lubrication and maintenance
Solution Approach 1:
The impeller is extracted from direct mounting on the pump housing and instead mounted on a separate drive shaft with bearing means. This extraction eliminates the need for lubrication between the impeller and housing, reducing maintenance requirements while preserving the fluid movement function.
3Device complexity
If the pump uses a single intake design, then the structure is simpler, but the flow rate is limited
Solution Approach 1:
The pump transitions from a single-intake design to a dual-intake design, adding another dimension to the fluid entry configuration. Two fluid inlets are positioned to receive fluid from opposite directions, simultaneously increasing flow rate capability while maintaining reasonable structural complexity through symmetrical arrangement.
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
The design achieves high flow rates, self-priming capability, and efficient handling of liquids, gases, and slurries, with reduced friction and maintenance, and can operate in various environments, including marine and industrial applications.
Implementation Method 1
A centrifugal pump design with a split pump housing and an impeller having outwardly extending vanes, mounted on a drive shaft with bearing means
Implementation Method 2
the outer housing comprises a vacuum box
Data Source
AI summary
A centrifugal pump mounted in an external housing. The pump has a split housing containing an impeller with outwardly extending vanes that is mounted on a drive shaft. The drive shaft at one end is mounted to a sealed bearing within the external housing and at the other end to a drive.