Auto-Diluting Rinsing Apparatus Pneumatic Control
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Solution Overview
Problem
Conventional liquid-storage dilution methods for biochemical analyzers are costly and complex, with unreliable dilution ratios and frequent operation, as they require separate systems for dilution and rinsing, and cannot be triggered at arbitrary moments due to reliance on high-pressure gas and separate containers.
Innovation Solution
An auto-diluting and rinsing apparatus that uses a single liquid-storage container with a high-pressure gas source for both dilution and rinsing, controlled by solenoid valves to alternately drive concentrated detergent and deionized water into the container, ensuring a consistent dilution ratio and allowing the dilution process to be triggered at any time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate containers and separate sets of apparatus are used for dilution and rinsing, then the dilution and rinsing processes can be carried out separately, but the system cost and complexity increase
Solution Approach 1:
The patent combines the dilution container and rinsing container into a single integrated container. The container includes a dilution space for mixing concentrated detergent with water and a rinsing space for dispensing the diluted detergent, eliminating the need for separate containers and reducing system complexity while maintaining reliable process separation through internal spatial division.
Solution Approach 2:
The single container serves multiple functions: it acts as both a dilution container and a rinsing container. The container can be configured in different states (dilution state and rinsing state) to perform different operations, reducing the overall number of components needed in the system.
2Manufacturing precision
If dosing pumps and injectors are used to drive deionized water and concentrated detergent, then the dilution process can be controlled, but the system cost increases
Solution Approach 1:
The patent uses a gas source connected to the container to drive the deionized water and concentrated detergent into the dilution space through pneumatic pressure. This eliminates the need for expensive dosing pumps and injectors while maintaining control over the dilution process through regulated gas flow.
3Device complexity
If gravitational force is used to drive liquids into the container, then the system cost decreases, but the reliability and quantification capability deteriorate
Solution Approach 1:
The patent employs a gas source to provide pneumatic driving force for transporting deionized water and concentrated detergent into the container. This method offers both reliability and quantification capability through controlled gas flow, avoiding the unreliability of gravitational driving while keeping the system simple and cost-effective.
4Stability of the object's composition
If the dilution process is triggered only when diluted detergent is used up, then the container pressure can be managed, but the operational frequency increases and dilution ratio consistency deteriorates
Solution Approach 1:
The patent implements a control mechanism that monitors the container's state and triggers the dilution process based on predetermined conditions. The controller manages the gas source activation to initiate dilution at appropriate moments, balancing pressure management with operational efficiency and ensuring consistent dilution ratios through controlled gas flow.
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 solution reduces system costs and complexity by enabling simultaneous dilution and rinsing within the same container, ensuring consistent dilution ratios and allowing the dilution process to be initiated at any moment, thereby improving operational efficiency.
Implementation Method 1
the concentrated detergent container and the deionized water container are communicated with a high pressure gas source, respectively, and the liquid path between the concentrated detergent container and the diluted detergent container, and the liquid path between the deionized water container and the diluted detergent container
Implementation Method 2
the diluted detergent container is communicated with a low pressure gas source via a first gas path during a dilution process
Implementation Method 3
during a rinsing process, the liquid-storage container is required to be kept in a high pressure, since the diluted detergent within the liquid-storage container should be driven into a reaction cuvette, which is kept in a low pressure
Data Source
AI summary
Disclosed is an auto-diluting and rinsing apparatus, comprising: a concentrated detergent container for holding concentrated detergent to be diluted; a diluter container for holding diluter, which is used to dilute the concentrated detergent; and a diluted detergent container for holding diluted detergent for rinsing, which are formed by mixing the concentrated detergent and the diluter; wherein the concentrated detergent container and the diluter container are communicated with a high pressure gas source, respectively, and the apparatus further comprising: a gas path controller, configured to control the diluted detergent container to be communicated with a low pressure gas source via a first gas path during a dilution process; and to be communicated with a high pressure gas source during a rinsing process.