Fluid Recovery System for Gas Insulated Switchgear
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing technologies for recovering insulating gases from gas insulated switchgears are inefficient and costly, particularly in replacing sulfur hexafluoride, which is a greenhouse gas, with alternative insulating gases that maintain equivalent performance.
Innovation Solution
A fluid recovery system comprising a communication unit for introducing a mixed fluid, a fluid separation unit with filter members to separate the mixed fluid into different fluids, and a collecting member to collect a specific fluid, allowing for multiple separation cycles and improved separation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sulfur hexafluoride is used as insulating gas, then insulation performance and arc extinguishing ability are improved, but environmental harm increases due to greenhouse gas effects
Solution Approach 1:
The patent replaces expensive, environmentally harmful sulfur hexafluoride with cheaper alternative gases (nitrogen, carbon dioxide, air) that have shorter service lives in terms of insulation effectiveness but are environmentally benign. The system recovers and recycles these shorter-lived gases to maintain continuous protection
Solution Approach 2:
The patent changes the chemical composition parameters of the insulating gas from sulfur hexafluoride to alternative gases with different molecular structures and properties. The recovery system adjusts parameters like purity levels and composition ratios to achieve equivalent insulation performance without greenhouse gas effects
2Object-affected harmful factors
If alternative insulating gases are used to replace sulfur hexafluoride, then environmental impact is reduced, but insulation performance and arc extinguishing ability deteriorate
Solution Approach 1:
The patent creates a multi-functional gas mixture system where nitrogen provides insulation, carbon dioxide enhances arc extinguishing, and air components supplement the overall performance. This universal combination achieves equivalent reliability to sulfur hexafluoride while maintaining environmental benefits
Solution Approach 2:
The patent uses composite gas mixtures combining multiple alternative gases (nitrogen, carbon dioxide, oxygen, air) to achieve insulation performance comparable to sulfur hexafluoride. The composite system leverages the complementary properties of each gas component to overcome the limitations of individual alternative gases
3Reliability
If insulating gas is continuously supplied to gas insulated switchgear, then operational reliability is maintained, but operational costs increase
Solution Approach 1:
The patent implements a recovery system that captures insulating gas discharged from gas insulated switchgear, purifies it to remove contaminants, and recycles it back to the switchgear. This discarding-and-recovering cycle eliminates the need for continuous fresh gas supply, maintaining operational reliability while eliminating ongoing gas purchase costs
Solution Approach 2:
The patent creates a self-service gas management system where the gas recovery and purification apparatus automatically captures, cleans, and returns insulating gas to the switchgear without external intervention. The system serves itself by maintaining its own gas supply, eliminating dependency on external gas procurement
4Productivity
If multiple separation cycles are implemented, then separation efficiency is improved, but device complexity increases
Solution Approach 1:
The patent segments the gas separation process into multiple sequential cycles, with each cycle targeting specific contaminants or gas components. The first cycle removes major impurities, the second cycle refines purification, and subsequent cycles achieve high-grade separation. This segmentation improves overall separation efficiency while keeping each individual cycle relatively simple
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 system efficiently separates and recovers specific fluids from mixed fluids, improving separation efficiency and reducing the need for continuous supply of expensive insulating gases, thereby lowering operational costs and environmental impact.
Implementation Method 1
a filter member which is configured to communicate with the communication unit, receive the introduced mixed fluid, and separate the received mixed fluid into the at least two different fluids
Data Source
AI summary
A fluid recovery system comprises a communication unit that communicates with the outside and introduces a mixed fluid; and a fluid separation unit that communicates with the communication unit and separates the introduced mixed fluid into at least two different fluids, wherein the fluid separation unit includes a filter member that communicates with the communication unit, receives the introduced mixed fluid, and separates the received mixed fluid into the at least two different fluids; and a collecting member that communicates with the filter member and collects a part of any one fluid of the separated fluids, wherein the communication unit includes a collecting communication unit that communicates with the outside and discharges the part of the any one fluid of the separated fluids; and an exhaust communication unit that communicates with the outside and discharges the other fluids from among the separated fluids.