Pressure Accumulator Leak Monitoring With Capsule Color Indicator
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Solution Overview
Problem
Existing pressure accumulators with monitoring devices for detecting sealing malfunctions have suboptimal recognizability and handling, and lack a space-saving design, particularly in the indication of fluid exposure affecting the indicator's optical properties.
Innovation Solution
The indicator is housed in a fluid-permeable capsule positioned between the viewing window and the separating element, with a compact design that includes a flat base for efficient fluid detection and a protective layer to prevent damage, and a trough edge for fluid reception, enhancing visibility and ease of installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the indicator is placed directly in the fluid path without a capsule, then the fluid can directly contact the indicator for detection, but the indicator is vulnerable to damage and the device requires more space for installation and handling
Solution Approach 1:
A capsule is introduced as an intermediary component between the fluid and the indicator. The capsule wall is permeable to the fluid, allowing the fluid to contact the indicator for detection purposes, while simultaneously protecting the indicator from direct damage. This resolves the contradiction by providing both protection and functionality through the mediating capsule structure.
Solution Approach 2:
The capsule is designed with a thin, fluid-permeable wall that allows fluid passage while maintaining structural integrity for indicator protection. The thin film structure enables the capsule to be compact yet sufficient for its protective and permeable functions, addressing both the protection need and the space constraint.
2Ease of operation
If a traditional indicator structure is used, then the device requires significant space for installation and handling, but the capsule design enables compact construction and easier handling
Solution Approach 1:
The indicator, protective structure, and viewing window are merged into a single integrated capsule unit. This consolidation simplifies handling and installation operations, as the entire indicator assembly can be installed or replaced as one compact component rather than multiple separate parts, directly improving ease of operation.
Solution Approach 2:
The indicator is nested within the capsule structure, which itself is designed to fit within the monitoring device housing. This nested arrangement maximizes space utilization and creates a compact overall structure that is easier to handle and install while maintaining all necessary functional elements.
3Loss of information
If the indicator is placed close to the viewing window for better visibility, then the signal color change is more recognizable, but the fluid path length increases and detection time is delayed
Solution Approach 1:
The capsule is designed with non-uniform properties: the wall thickness and permeability are optimized locally to balance fluid transmission speed with indicator protection. The viewing window area is specifically designed to provide optimal signal visibility while the rest of the capsule structure maintains appropriate fluid path characteristics for timely detection.
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
This design simplifies the recognition of malfunctions by providing a high-luminosity signal color change visible through the viewing window, even in non-illuminated conditions, and allows for space-saving construction and easy handling, improving the monitoring device's functionality and reliability.
Implementation Method 1
whose capsule wall is permeable for the passage of the fluid
Implementation Method 2
whose optical properties change noticeably when wetted with the fluid
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to a pressure accumulator comprising an accumulator housing (10) in which a movable separating element (16) separates a gas chamber (12) filled with a working gas from a fluid chamber (14) in a fluid-tight manner. A monitoring device (46) is provided which supplies an optically perceptible display in the event of a fault impairing the sealing effect of the separating element (16), and the monitoring device also has a viewing window (54) through which an indicator can be observed that is connected to the gas chamber (12) and the optical properties of which change in a perceptible manner when wetted with the fluid. The invention is characterized in that the indicator with changing optical properties is received in a capsule (48), the capsule wall (50) of which is permeable for the passage of the fluid and which is arranged in the accumulator housing (10) between the viewing window (54) and the separating element (16).