Center-of-Gravity De-Icing for Overhead Line Ice Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing anti-icing and de-icing technologies for overhead transmission lines face challenges such as high energy consumption, limited de-icing range, and the need for frequent device installation, especially when dealing with rime or mixed ice that has strong adhesion to conductors.
Innovation Solution
An anti-icing and de-icing device based on sudden change of center of gravity, which includes a base, an electric driving assembly, a weight block, and a potential energy module. The device uses a clutch mechanism to switch between energy storage and release states, accumulating potential energy when the weight block displaces and rapidly releasing it to create vibrations that dislodge icing from the conductor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional anti-icing and de-icing devices are used, then de-icing effect is achieved, but energy consumption is high and device quantity required is large
Solution Approach 1:
The device employs periodic reciprocating motion through the weight block's back-and-forth movement, creating intermittent vibrational forces that periodically disrupt ice adhesion. This periodic action accumulates de-icing effect over time while consuming less energy than continuous vibration methods, as the system leverages the cumulative impact of repeated stress cycles on ice bonding
Solution Approach 2:
The device generates mechanical vibration through the reciprocating motion of the weight block, which creates vibrational forces transmitted to the conductor. These vibrations mechanically disrupt the bond between ice and conductor surface, achieving de-icing through physical agitation rather than thermal or electrical methods, thereby reducing energy consumption while maintaining effectiveness
2Area of stationary object
If more devices are installed to cover larger de-icing range, then de-icing coverage is improved, but device complexity and installation cost increase
Solution Approach 1:
The device utilizes dynamic reciprocating motion of the weight block to extend its effective de-icing range. The oscillating movement allows a single device to influence a larger portion of the conductor by projecting vibrational energy along its length, reducing the number of devices needed while maintaining coverage
Solution Approach 2:
The device is designed with universal applicability to different conductor types and icing conditions through adjustable parameters such as weight block mass, spring stiffness, and driving frequency. This multi-functionality allows one device design to serve multiple purposes and locations, reducing the variety and quantity of devices required across different installation scenarios
3Reliability
If strong adhesion ice (rime or mixed ice) is removed, then de-icing effectiveness is improved, but energy consumption and device requirements increase
Solution Approach 1:
The device applies preliminary vibrational stress to the ice-conductor interface before complete ice formation or during early icing stages. By acting preemptively on the adhesion bond, the device prevents strong ice bonding from establishing, making energy-intensive removal unnecessary and reducing overall energy consumption while maintaining effectiveness against tenacious ice types
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 device effectively reduces the severity of icing on overhead transmission lines with lower energy consumption and fewer devices required, improving the efficiency and reliability of the de-icing process while minimizing economic and operational costs.
Implementation Method 1
the elastic element generates elastic deformation, and the potential energy accumulated by the potential energy module includes elastic potential energy generated by the elastic deformation of the elastic element
Implementation Method 2
The electric driving assembly includes a motor and a clutch mechanism, and the motor drives the weight block to generate displacement relative to the base through the clutch mechanism
Implementation Method 3
rapidly releasing it to create vibrations that dislodge icing from the conductor
Data Source
AI summary
The disclosure relates to the technical field of anti-icing and de-icing of an overhead transmission line or a railway contact system, and provides a mechanical anti-icing and de-icing device fixedly installed on the overhead transmission line or the railway contact system. The device comprises a base, an electric driving assembly, a weight block and a potential energy module comprising an elastic element. The electric driving assembly comprises a clutch mechanism and a motor. When the clutch mechanism is in an engaging state, the electric driving assembly drives the weight block to generate displacement relative to the base, and when the clutch mechanism is in a separation state, the electric driving assembly cuts off driving to the weight block. When the clutch mechanism is engaged, the potential energy module is used for accumulating potential energy when the weight block generates displacement relative to the base; and when the clutch mechanism is separated, a driving force of the electric driving assembly on the weight block is cut off, the potential energy contained in the potential energy module is rapidly released, so that the weight block moves quickly, thus causing the whole gravity center of the device to suddenly change, forming vibration to be transmitted to the overhead transmission line, so that the icing is removed.