Multiphase Liquid Dispenser With Multi-Access Cannula Mixing
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Solution Overview
Problem
Existing dispensing devices for multiphase liquids require separate tanks for each component and manual mixing, leading to complexity and inefficiency.
Innovation Solution
A dispensing device with a single chamber and a dispenser that integrates cannulas with specific access points to simultaneously pump and mix immiscible liquid components without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate pumps are used for each liquid phase, then each phase can be dispensed independently, but the device complexity increases
Solution Approach 1:
The single pump is segmented into multiple dispensing outlets, each capable of dispensing different liquid phases through electronically controlled valves. This allows independent control of each phase without requiring separate physical pumps, thereby reducing device complexity while maintaining independent dispensing capability.
Solution Approach 2:
A single pump system is designed to perform multiple functions by serving different liquid phases through a common dispensing head with multiple outlets. Each outlet can be independently controlled via electronic valves, enabling the single pump to replace multiple dedicated pumps and reduce overall system complexity.
2Device complexity
If a single pump is used for multiple liquid phases, then device complexity is reduced, but cross-contamination between phases occurs
Solution Approach 1:
Electronically controlled valves are introduced as intermediaries between the single pump and multiple dispensing outlets. These valves act as barriers that prevent direct contact between different liquid phases, allowing the pump to service multiple phases without cross-contamination while maintaining system simplicity.
Solution Approach 2:
Different sections of the dispensing system are assigned different functional qualities - the pump provides common pressurization while electronically controlled valves provide phase-specific isolation. This local differentiation of function allows a single pump to serve multiple phases reliably without cross-contamination.
3Manufacturing precision
If manual cleaning of the dispensing head is required, then manufacturing precision can be maintained, but loss of time increases due to downtime
Solution Approach 1:
The dispensing system incorporates self-cleaning functionality where cleaning solutions are automatically pumped through the dispensing head and channels. This automated self-service cleaning maintains manufacturing precision without requiring manual intervention or system shutdown, thereby eliminating cleaning downtime.
Solution Approach 2:
The cleaning process is integrated into the operational cycle, allowing cleaning actions to occur without interrupting the overall dispensing workflow. This continuous operation approach maintains both precision and productivity by eliminating idle cleaning time.
4Loss of time
If the dispensing head is designed for easy cleaning, then loss of time is reduced, but manufacturing precision may be compromised
Solution Approach 1:
The dispensing head incorporates dynamically adjustable components that can be positioned or configured to optimize both cleaning access and dispensing precision. The system adapts its structure based on operational mode, providing easy cleaning access when needed while maintaining precise dispensing geometry during operation.
Data Source
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AI summary
It is provided a dispensing device for multiphase liquids (1), comprising a closed casing (2) defining at least one chamber (20) configured to contain one or more substances, a multiphase liquid (3) including at least a first component (30) housed within the chamber (20), and a second component (31) housed within the chamber (20), of different and immiscible density with respect to the first component (30) so as to form, at least when the multiphase liquid (3) is at rest, an interface surface (32) that delimits the phasic components (30,31), a dispenser (4) including a cannula (40) defining a first extension direction (4a) skewed with respect to the ground when the device (1) is in use in such a way as to access the multiphase liquid (3), and an expulsion mechanism (41) arranged on the top of the casing (2), operatively connected to the cannula (40) and configured to pump the multiphase liquid (3) from the chamber (20) outwards, in which the cannula (40) comprises a plurality of first accesses (5) arranged on planes spaced along the first direction of extension (4a) in such a way that at least two of the first accesses (5) are separated from the interface surface (32) and the expulsion mechanism (41) simultaneously pumps the first component (30) and the second component (31).