Submersible Inspection Vehicle for Sealed Transformer Diagnostics
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Solution Overview
Problem
Existing machine inspection systems often require undesirable disassembly or fluid draining, which are not efficient and can introduce contaminants, necessitating a method for in-situ inspection without disrupting the sealed environment of machines like transformers.
Innovation Solution
A self-propelled inspection vehicle that operates within the machine's dielectric liquid medium, equipped with sensors and wireless communication, allowing for controlled movement and data collection without draining the fluid, using pumps and motors for navigation and stability, and incorporating various status interrogation systems for comprehensive inspection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional inspection methods are used, then inspection can be performed, but disassembly and fluid draining are required which disrupt the sealed environment and introduce contamination risks
Solution Approach 1:
The inspection vehicle is nested within the sealed machine housing, operating inside the dielectric liquid medium without breaking the seal. The vehicle fits through a access port while maintaining the sealed environment, allowing inspection components to be nested within the machine's existing structure.
Solution Approach 2:
The inspection vehicle acts as an intermediary device that interfaces with the sealed environment through a controlled access port. It enables inspection operations without direct human entry or disruption of the sealed space, mediating between the inspection need and the sealed environment protection.
2Object-affected harmful factors
If the machine remains sealed during inspection, then contamination is prevented, but inspection access becomes difficult
Solution Approach 1:
Visual inspection methods are replaced with electronic sensing systems including cameras, sensors, and detection devices mounted on the inspection vehicle. These electronic systems detect and measure component conditions without requiring mechanical disassembly or visual line-of-sight access.
Solution Approach 2:
The inspection system utilizes optical detection methods including camera-based imaging and potential spectral analysis to detect component conditions, material degradation, and anomalies through changes in optical properties without physical contact or seal disruption.
3Ease of operation
If fluid is drained for inspection, then direct access to components is achieved, but contamination risks increase and operational time is lost
Solution Approach 1:
The inspection process maintains continuous operation of the machine and its dielectric liquid medium throughout the inspection. The fluid remains in place, the sealed environment is preserved, and inspection occurs without interrupting the normal operational state, eliminating downtime associated with draining and refilling.
4Ease of operation
If disassembly is performed for inspection, then internal components become accessible, but the process becomes complex and time-consuming
Solution Approach 1:
The inspection vehicle is designed as a multi-functional platform that performs multiple inspection tasks including visual detection, sensing, data collection, and navigation through a single integrated system. This universal device replaces multiple separate disassembly and inspection procedures with one coordinated operation.
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
Enables thorough inspection of machine components without disrupting the sealed environment, allowing for real-time data collection and analysis, reducing contamination risks and maintaining the machine's operational integrity.
Implementation Method 1
using pumps and motors for navigation and stability
Implementation Method 2
equipped with sensors and wireless communication
Data Source
AI summary
An inspection system for inspecting a machine includes an inspection vehicle constructed for wireless operation while submersed in a dielectric liquid medium. The inspection vehicle is self-propelled. A controller is operative to direct the activities of the inspection vehicle. A plurality of status interrogation systems is disposed on the inspection vehicle. The status interrogation systems are operative to capture inspection data regarding a plurality of inspection procedures performed on the machine.