Movable Valve Gas Filter for Faster GIS Gas Recovery
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Solution Overview
Problem
Existing gas filters in gas-insulated devices require removal and reattachment during gas recovery and enclosing, leading to increased pressure loss and time-consuming replacement work.
Innovation Solution
A valve gas filter with a movable valve body incorporating a gas filter that switches between open and closed positions to facilitate easy switching between gas recovery and enclosing, preventing foreign matter entry without the need for attachment or detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gas filter is attached to a gas enclosing port to prevent foreign matter entry, then foreign matter prevention is improved, but gas recovery time increases and replacement work becomes time-consuming
Solution Approach 1:
The valve body is designed to be movable between a first position (blocking the passage) and a second position (opening the passage). This dynamic positioning allows the gas filter to switch between filtering gas during enclosing and allowing unrestricted flow during recovery, eliminating the need for physical removal and reattachment of the filter
Solution Approach 2:
The valve body integrated with the gas filter serves dual functions: it acts as both a filter element and a flow control valve. By moving the valve body between positions, the same component enables both gas enclosing with filtration and gas recovery without filtration, replacing what would traditionally require separate components and operations
2Reliability
If a gas filter is attached to a gas enclosing port to prevent foreign matter entry, then foreign matter prevention is improved, but replacement work becomes time-consuming
Solution Approach 1:
The movable valve body eliminates the need for attachment and detachment operations. The operator simply moves the valve body between positions rather than performing complex replacement work, significantly improving ease of operation while maintaining foreign matter prevention capabilities
Solution Approach 2:
The invention extracts the valve function from the gas filter assembly, allowing the gas filter to remain permanently installed while the valve body handles the switching operation. This separation of functions simplifies the operation to a simple positional change rather than complete replacement
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 efficient switching between gas recovery and enclosing while preventing foreign matter entry, reducing time and effort in replacement work and minimizing exposure to atmospheric contaminants.
Implementation Method 1
a gas filter that allows passage of an insulating gas but does not allow passage of foreign matter contained in the insulating gas
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
A valve gas filter (1A) includes: a valve box (11) attached to a gas enclosing port connected to a gas-insulated device (100) to be filled with an insulating gas and hermetically sealed; and a valve body (14) that opens and closes a gas passage by moving in the valve box (11), in which the valve body (14) includes a gas filter (15), which is formed by a porous insulating material and allows passage of an insulating gas but does not allow passage of foreign matter contained in the insulating gas.