Double Suction Impeller Self-Adjusting Blade Angle
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing impellers fail to effectively differentiate and manage air and fluid flows both inside and outside the rim, limiting their operational efficiency and adaptability to varying fluid parameters.
Innovation Solution
A double suction impeller with two rows of blades attached to a rotary rim, where each blade has an opposite blade, integrated with a stabilizing ring to maintain a consistent angle of attack, allowing self-adjustment based on centrifugal force and flow dynamics, enabling operation in both radial and axial fan patterns with a single drive.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single-row impeller is used, then the structure is simple, but it cannot effectively differentiate and manage air and fluid flows inside and outside the rim
Solution Approach 1:
The impeller is segmented into two distinct rows of blades: an inner row for managing air flow inside the rim and an outer row for managing fluid flow outside the rim. This segmentation allows each row to be optimized for its specific function while maintaining a unified impeller structure that handles multiple flow types simultaneously.
Solution Approach 2:
Different regions of the impeller are assigned different qualities and functions. The inner blades are designed with characteristics suited for air flow management, while the outer blades are designed for fluid flow management. This local differentiation enables the impeller to handle diverse flow conditions effectively without requiring separate devices.
2Adaptability or versatility
If the angle of attack is fixed, then the manufacturing is easier, but the impeller cannot self-adjust to fluid parameter changes
Solution Approach 1:
The impeller incorporates dynamic self-adjustment mechanisms that allow the blades to automatically modify their angle of attack in response to changing fluid parameters. This dynamic capability enables the impeller to maintain optimal performance across varying operating conditions without requiring manual intervention or complex external control systems.
Solution Approach 2:
The impeller is designed to self-regulate its blade angles based on the flow conditions. The blades automatically adjust their orientation to optimize performance, eliminating the need for external control mechanisms or complex manufacturing processes. This self-service capability simplifies both manufacturing and operation while enhancing adaptability.
3Productivity
If separate drives are used for inner and outer blades, then each blade can be optimized independently, but the device complexity increases
Solution Approach 1:
The impeller merges the drive systems for inner and outer blades into a single unified drive mechanism. This combined drive approach allows both rows of blades to be optimized independently through their distinct designs while being propelled by a common power source, thereby achieving high operational efficiency without the complexity of multiple separate drive systems.
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 impeller achieves efficient flow management in both directions, self-adjusts to fluid parameter changes, and operates in multiple environments, enhancing operational efficiency and adaptability.
Implementation Method 1
The blades are rigidly attached in pairs (one relative to the other) and embedded in a spindle so that they can rotate relative to the axis of the spindle; whereby the inner blade is integrated with the outer blade and the resultant angle of attack of the two blades is set on its own accord (self-adjusting) as a result of rotation resultant from reciprocally transmitted forces arising from the shape of the blades and forces occurring as a result of their rotation
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The double suction impeller characterized in that it has two rows of blades (2) and (3) attached in pairs - to the inside and outside of the rotatary rim (1) and separated from each other by the rotary rim (1), each blade having an opposite blade; whereby the blades (2) and (3) are attached to a stabilising ring (9) which holds all the blades (2) and (3) relative to the ring at the same angle of attack; whereby the blades (2) and (3) are connected in pairs rigidly (one relative to the other) and embedded in the spindle (5) in a way enabling them to rotate relative to the axis of the spindle (5); whereby the inner blade (2) is integrated with the outer blade (3) and the resultant angle of attack of the two blades is set on its own accord (self-adjusting) as a result of the rotary motion resulting from mutually transmitted forces that arise from the shape of the blades and forces that occur in connection with their rrotary motion; whereby a stabilising ring (9) holds all blades (2) and (3) at the same angle of attack.