Dual-Tank Dosing for Stable Solution Concentration
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Solution Overview
Problem
Existing dosing apparatuses for composition solutions face challenges in maintaining a consistent concentration during refilling, leading to waiting times and inaccurate documentation, especially in applications requiring precise concentration control like medical settings.
Innovation Solution
A dosing apparatus with a day tank and separate solution reservoir, where the composition solution with a pre-defined concentration is flushed into the day tank for refilling, allowing simultaneous preparation and discharge without altering the concentration, and incorporating a conductivity measurement system for precise concentration documentation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the solution reservoir is refilled with fresh liquid to maintain composition solution supply, then the solution reservoir can continue operating, but the concentration of composition in the solution reservoir changes during refilling
Solution Approach 1:
The system is divided into two separate tanks: a solution reservoir for concentration preparation and a day tank for stable solution storage. This segmentation allows the solution reservoir to be refilled without affecting the concentration stability in the day tank, as fresh liquid is added to the solution reservoir rather than directly to the discharge system.
Solution Approach 2:
The day tank acts as an intermediary between the solution reservoir and the discharge system. It receives pre-prepared composition solution from the solution reservoir and maintains stable concentration while being discharged, isolating the refilling process from the discharge process.
2Stability of the object's composition
If the solution reservoir is refilled frequently to maintain composition solution supply, then concentration consistency can be maintained, but waiting time increases and productivity decreases
Solution Approach 1:
The solution reservoir prepares composition solution in advance with the correct concentration before it is needed in the day tank. By pre-preparing the solution and storing it in the day tank, the system avoids waiting time during discharge operations, as the day tank can be refilled from the solution reservoir without interrupting discharge to the use point.
3Device complexity
If a single tank system is used for both solution preparation and storage, then device complexity is reduced, but the device size must be larger to accommodate both functions
Solution Approach 1:
The system divides the single large tank into two smaller separate tanks: a solution reservoir for preparation and a day tank for storage. This segmentation reduces the overall volume required while maintaining both preparation and storage functions, as each tank can be optimized for its specific purpose rather than one tank needing to accommodate both functions.
4Productivity
If the solution reservoir is refilled while discharging composition solution, then productivity is improved, but concentration documentation accuracy deteriorates
Solution Approach 1:
By separating the solution reservoir and day tank, the system allows simultaneous refilling of the solution reservoir and discharge from the day tank without affecting measurement accuracy. The concentration measuring means in the day tank measures stable concentration solution, isolated from the refilling process occurring in the solution reservoir.
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 approach minimizes waiting times for refilling, ensures accurate concentration documentation, and allows for a more compact design, meeting stringent requirements such as those in medical applications by maintaining consistent composition solution concentrations.
Implementation Method 1
spray means coupled to the box for bringing the composition being in the box into contact with a solvent liquid, such that an amount of the composition dissolves
Implementation Method 2
measuring means for measuring the conductivity of the composition solution
Data Source
AI summary
The invention refers to a dosing apparatus (1) for dosing a composition (31), comprising: at least one box (2) for keeping the composition (31) or a capsule (43) containing the composition (31), a solution reservoir (3) for preparing a composition solution (4) with a pre-defined concentration of the composition (31) in solution, wherein the composition solution (4) with said pre-defined concentration of the composition (31) in solution can be further used as a use solution (34), at least one spray means (5) coupled to the box (2) for bringing the composition (31) being in the box (2) into contact with a solvent liquid, such that an amount of the composition (31) dissolves and the thus resulting composition solution (4) flows into the solution reservoir (3), at least one spray line (10), for feeding the spray means (5) with the solvent liquid, a supply line (6) comprising a liquid connection (7), for supplying fresh liquid, preferably water, to the solution reservoir (3), measuring means (14) for measuring the conductivity of the composition solution (4), at least one motorized feed pump (15) for moving the composition solution (4), the solving liquid, the use solution (34), and/or the fresh liquid, and an electronic control unit (16) for controlling the operation of the dosing apparatus (1). The invention is especially specified in that, the dosing apparatus (1) additionally comprises: a day tank (39) for storing the use solution (34), such that the composition solution (4) with the pre-defined concentration of the composition (31) in solution can be prepared without changing the concentration of the composition (31) in solution in the use solution (34) stored within the day tank (39), a flushing out line (40), connecting the solution reservoir (3) with the day tank (39) for discharging the composition solution (4) with the pre-defined concentration of the composition (5) in solution from the solution reservoir (3) into the day tank (39), thereby refilling the day tank (39) with the use solution (34), a discharge line (8), which is connected to the day tank (39), comprising a discharge (9) for discharging the use solution (34) from the day tank (39). The invention further refers to a method for dosing a composition using said dosing apparatus (1).