Modular Process Analyzer Cartridge for Fluid System Maintenance
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Solution Overview
Problem
Existing process analysis devices for water analysis face operational reliability issues and high maintenance costs due to deposits, crystallization, and wear in liquid lines and pumps, requiring frequent maintenance and repairs.
Innovation Solution
A modular process analysis device with a base module lacking liquid fluidics and a cartridge module containing the entire liquid fluid system, including a non-driven pump mechanism and analyte sensor, allowing for regular or consumption-controlled replacement of the fluid system, reducing maintenance efforts and faults.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the analyzer uses liquid-carrying lines, valves, and pump components in the base module, then the device can perform continuous water analysis, but deposits and crystallization occur in the fluid lines causing frequent maintenance and repairs
Solution Approach 1:
The analyzer is divided into two separate modules: a base module containing only electronic components (motor, control electronics, sensor) and a cartridge module containing all liquid-carrying components (fluid lines, valves, pump, reservoir). This segmentation isolates the fluid system from the base module, preventing deposits and crystallization in the base module's fluid lines, thereby reducing maintenance requirements and improving operational reliability.
Solution Approach 2:
All liquid-carrying components including fluid lines, valves, pump mechanisms, and reservoirs are extracted from the base module and placed in a separate cartridge module. This extraction eliminates the source of the problem by removing the fluid system that causes deposits and crystallization from the base module, allowing the base module to remain clean and maintenance-free.
2Device complexity
If the pump mechanism is integrated in the base module, then the device structure is simplified, but wear and tear on pump components and hoses increases maintenance costs
Solution Approach 1:
The pump mechanism is segmented into a separate cartridge module rather than being integrated in the base module. This allows the pump and its associated hoses to be replaced as a complete cartridge unit when worn, rather than requiring separate maintenance of individual components, thereby reducing overall maintenance costs while maintaining structural simplicity through modular design.
Solution Approach 2:
The cartridge module containing the pump mechanism and fluid lines is designed as a disposable or replaceable unit. When wear and tear occur, the entire cartridge is replaced rather than repairing individual components, which is more cost-effective and simplifies maintenance operations.
3Stability of the object's composition
If the fluid system is permanently installed in the base module, then the device is more stable, but regular maintenance and replacement of fluid components is required
Solution Approach 1:
The fluid system is designed to be dynamically replaceable rather than permanently fixed. The cartridge module containing the fluid system can be quickly detached and replaced when depleted or contaminated, allowing the system to maintain stability during operation while enabling easy replacement of consumable fluid components without requiring extensive maintenance time.
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 modular design significantly reduces maintenance needs and faults related to fluid system wear and deposits, enhancing operational reliability and lowering maintenance costs by enabling the entire fluid system to be replaced when exhausted or faulty.
Implementation Method 1
the pump mechanism is designed as a peristaltic pump, and particularly preferably as a pneumatic peristaltic diaphragm pump. A peristaltic pump mechanism is very simple in design and can, for example, be formed by a flexible section of the fluid line that is continuously deformed in a longitudinal direction by the coupling element.
Implementation Method 2
A particularly preferred embodiment is the pneumatic peristaltic pump, in which the mechanical coupling is generated by applying overpressure or underpressure to a multi-stage diaphragm pump.
Data Source
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AI summary
The process-analysis device (10) has a base module (14) and a convertible cartridge module (12), where the base module has a pumping drive (16) and an analysis sensor (20) without fluid-measuring section (60). The cartridge module has a fluid-reservoir (40,41). The fluid-measuring section is connected with an analyzer.