Pressure Fill Device with Movable Panel for Valve Maintenance Access
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Solution Overview
Problem
Existing pressure fill devices for closed-loop fluid circulation systems are cumbersome to maintain due to the difficulty in accessing and removing fixing means, which hinders efficient disassembly and maintenance of flow control valves.
Innovation Solution
The pressure fill device incorporates a movable panel that exposes the removal portion of the fixing means, allowing for direct access and easy removal of the fixing means without reorientation, facilitating maintenance and disassembly of the flow control valves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fixing means are positioned inside the housing away from the movable panel, then the structural integrity and sealing of the housing is improved, but the accessibility for maintenance of the flow control valve deteriorates
Solution Approach 1:
The housing is segmented into a fixed portion and a movable panel portion. The movable panel can be independently moved to expose the removal portion of the fixing means, allowing maintenance access without compromising the overall structural integrity of the housing when closed.
Solution Approach 2:
The panel is made movable rather than fixed, allowing it to be positioned in different states (closed for structural integrity, open for maintenance access). This dynamic element resolves the contradiction between maintaining structural integrity and providing maintenance accessibility.
2Device complexity
If the removal portion of the fixing means is not accessible through the opening, then the internal arrangement of components is improved, but the time required for maintenance operations increases
Solution Approach 1:
The removal portion of the fixing means is pre-positioned to face the movable panel, so that when the panel is moved to the open position, the removal portion is immediately accessible through the opening. This preliminary arrangement eliminates the need for additional reorientation steps during maintenance.
Solution Approach 2:
Instead of requiring the tool to approach the fixing means from the side or bottom of the housing, the removal portion is oriented to face the panel opening directly, allowing removal actions to be performed from the front direction, which is more accessible and efficient.
3Reliability
If the movable panel covers the flow control valve during operation, then the protection and sealing is improved, but the accessibility for maintenance deteriorates
Solution Approach 1:
The panel is designed to be movable between a closed position (providing sealing and protection during operation) and an open position (providing access to the flow control valve and its fixing means). This dynamic design allows the system to switch between protection mode and maintenance mode.
Solution Approach 2:
The panel is extracted from being a fixed covering element and transformed into a movable access door. This allows the protective function to be separated from the access function, enabling both sealing during operation and accessibility during maintenance.
Data Source
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AI summary
A pressure fill device (1), comprising an inlet pipe, arranged to be connected, in use to a fluid supply, a system outlet pipe and a flow control arrangement, comprising a first flow control valve (12, 14). The first flow control valve (12, 14) comprises a first part and a second part, disassemblable from each other to enable maintenance of the first flow control valve (12, 14). The first part and the second part are joined, in use, by fixing means. The fixing means are movable or removable by engaging a removal portion of the fixing means. The pressure fill device (1) further includes a housing (70). The housing (70) includes a movable panel (72), movable between a first, covering position in which the movable panel (72) covers the first flow control valve (12, 14), and a second, open position in which the movable panel (72) does not cover the first flow control valve (12, 14). The removal portion of the fixing means faces towards the movable panel (72).