Centrifugal Pump Dual Outlet Interference Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing centrifugal pumps require multiple valves to manage fluid flow direction, increasing complexity and cost, particularly in applications like washing machines where efficient water circulation and drainage are essential.
Innovation Solution
A centrifugal pump design with two outlets and an interference structure within the impeller chamber that directs fluid flow through either outlet based on the impeller's rotation direction, eliminating the need for additional valves by using interference plates and flow channels to control fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple valves are used to control fluid flow direction in a centrifugal pump, then the pump can manage multiple flow paths, but the device complexity and cost increase
Solution Approach 1:
The invention extracts and eliminates the valve components from the pump system entirely. By using the impeller chamber geometry and flow channel design, the pump achieves multi-flow-path control without any valves, directly resolving the contradiction between adaptability and device complexity
Solution Approach 2:
The pump system uses its own impeller rotation to automatically direct fluid flow through different outlets based on operational needs. The impeller chamber and flow channels are designed to self-regulate flow direction without external valve control, making the system self-sufficient and eliminating the need for additional controlling components
2Ease of operation
If multiple valves are installed to manage water circulation and drainage, then flow direction can be controlled, but the cost and reliability decrease
Solution Approach 1:
By removing all valve components from the system, the invention eliminates the reliability issues associated with valves (leaks, failures, maintenance requirements). The simplified valveless design maintains full flow direction control capability while significantly improving system reliability
Solution Approach 2:
The invention replaces expensive, complex valve assemblies with a simple, integrated impeller chamber design. This cost-effective approach uses the existing rotating impeller mechanism to perform flow direction control that would otherwise require multiple expensive valve components
3Adaptability or versatility
If valves are used to direct fluid flow, then multiple outlets can be managed, but water loss increases due to valve operations
Solution Approach 1:
The valveless design with integrated flow channels ensures continuous, smooth fluid flow from the impeller chamber to the appropriate outlet. By eliminating valves that create flow interruptions and pressure drops, the system maintains continuous useful action, preventing water loss while still managing multiple outlets effectively
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 pump by allowing fluid direction control through impeller rotation alone, reducing costs and improving reliability by eliminating the need for multiple valves and preventing unnecessary water loss.
Implementation Method 1
a first flow channel in communication with the first outlet and a second flow channel in communication with the second outlet; and the interference structure is configured to direct fluid in the impeller chamber to flow through the first outlet via the first flow channel when the impeller rotates in a first direction and to direct fluid in the impeller chamber to flow through the second outlet via the second flow channel when the impeller rotates in a second direction
Data Source
AI summary
A centrifugal pump includes an electric motor, an impeller driven by the motor and a pump housing having an impeller chamber, an inlet in communication with the impeller chamber via an opening, and first and second outlets in communication with the impeller chamber. The impeller chamber has an interference structure which forms first and second flow channels in communication with the first and second outlets. The interference structure directs the fluid in the impeller chamber to flow through the first outlet via the first flow channel when the impeller rotates in a first direction or to flow through the second outlet via the second flow channel when the impeller rotates in the opposite direction.