Spiral Blade Fluid Power Generator for Weak Wind Drag
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Solution Overview
Problem
Conventional wind power generators face inefficiencies in converting wind energy into electricity due to mechanical friction and blade design limitations, particularly in areas with low and inconsistent wind speeds, where increasing blade size to enhance drag is hindered by structural and material constraints.
Innovation Solution
A fluid power generator design featuring an ascending air-current forming body with spiral blades and auxiliary drag blades that trap wind, generating rotating torque and improving efficiency without enlarging the blade size, along with a power generation system that includes multiple fluid power generators arranged in layers to enhance output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the blade size is increased to enhance drag and improve power generation in weak winds, then the drag force increases, but the weight of the blade and supporting frames increases materially and structurally
Solution Approach 1:
The blade is divided into multiple spiral blades arranged along the ascending air-current forming body. This segmentation allows the drag force to be distributed across multiple smaller blade elements rather than requiring a single large blade, thereby reducing individual blade weight while maintaining total drag force for power generation in weak winds
Solution Approach 2:
The invention transitions from conventional horizontal blade rotation to vertical ascending air-current rotation. The spiral blades are arranged spirally along the vertical ascending air-current forming body, utilizing the vertical dimension to generate rotation. This dimensional change allows efficient use of weak winds without requiring large horizontal blade spans, thus avoiding the weight penalty associated with larger blades
2Force
If the blade size is increased to enhance drag, then the drag force increases, but the weight of the supporting frames increases structurally
Solution Approach 1:
The supporting structure is segmented into a modular ascending air-current forming body that houses multiple spiral blades. This segmentation allows the supporting frame to be optimized for vertical load bearing rather than horizontal span support, reducing the overall frame weight required to support the same drag-generating capacity
Solution Approach 2:
By shifting from horizontal to vertical rotation, the supporting frame structure is optimized for vertical alignment and compact footprint. The ascending air-current forming body with spiral blades arranged vertically requires less extensive horizontal supporting infrastructure compared to conventional horizontal-axis wind turbines, thereby reducing supporting frame weight
3Productivity
If conventional wind power generators are used, then power generation occurs, but efficiency is limited to 20-40% due to mechanical friction and blade design limitations
Solution Approach 1:
The invention replaces the conventional mechanical gear transmission system with a direct-drive generator connected to the ascending air-current forming body. This eliminates mechanical friction losses in gears and transmission components, directly converting the rotational motion from wind drag into electrical energy, thereby improving overall power generation efficiency beyond the conventional 20-40% range
Solution Approach 2:
The invention changes the operational parameters by utilizing vertical ascending air-current rotation with spiral blades instead of conventional horizontal rotation. This parameter change optimizes the interaction between wind flow and blade surfaces, enhancing drag-to-lift conversion efficiency and reducing energy losses, thereby achieving higher power generation efficiency
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 significantly increases power generation efficiency by leveraging wind drag and structural reinforcement, allowing for effective electricity production even in weak winds and enabling high-output energy generation without increasing blade size, while also providing an advertisement feature through visible signage.
Implementation Method 1
A fluid power generator according to the present invention refers to a wind power generator which efficiently uses drag of wind to improve efficiency of power generation
Implementation Method 2
wind power generation refers to a power generation method of turning a windmill with a wind of nature, and transmitting accelerating force of the turning windmill to a generator
Implementation Method 3
a generator configured to produce electricity based on rotation of the ascending air-current forming body
Data Source
AI summary
A fluid power generator can enhance power generation efficiency by efficiently using the drag force of wind without increasing the size of blades, and includes: an ascending air current-forming body provided at a rotary shaft; a plurality of spiral blades which are spirally formed along the outer circumferential surface of the ascending air current-forming body; and a generator which generates electricity by rotation of the ascending air current-forming body.