Water Quality Analyzer Dual Storage Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Online water quality analyzers lack the ability to verify whether abnormal measured values are due to the sample water or device malfunctions, as excess sample water is typically discharged after measurement, preventing post-measurement analysis.
Innovation Solution
A water quality analyzer configuration with two storage containers: the first for temporary storage until measurement determination and the second for storing sample water if an abnormal value is detected, allowing verification of the source of the abnormality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If sample water is discharged after measurement, then measurement efficiency is improved, but the ability to verify abnormal measured values is lost
Solution Approach 1:
The storage container is divided into two separate containers: a first storage container for normal sample water and a second storage container for abnormal sample water. This segmentation allows the system to maintain measurement efficiency while preserving abnormal samples for verification, resolving the contradiction between productivity and reliability.
2Reliability
If sample water is retained for verification, then reliability of abnormal value verification is improved, but device complexity increases
Solution Approach 1:
The storage container is segmented into two separate containers with distinct functions. This simple segmentation provides reliable abnormal value verification capability without introducing complex verification mechanisms, thus improving reliability while minimizing the increase in device complexity.
3Reliability
If all sample water is stored, then verification capability is improved, but loss of substance increases
Solution Approach 1:
The storage system is segmented to differentiate between normal and abnormal samples. Normal samples are discharged to minimize substance loss, while only abnormal samples are retained in the second storage container for verification. This segmentation resolves the contradiction by reducing unnecessary retention of normal samples.
Solution Approach 2:
Different storage qualities are applied to different samples: normal samples are discarded while abnormal samples are preserved. This local differentiation of storage quality ensures that substance loss is minimized while maintaining verification capability for abnormal values.
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
Enables verification of abnormal measured values by retaining sample water with abnormal readings, facilitating diagnosis of measurement issues within the device.
Implementation Method 1
measures absorbance or the like
Implementation Method 2
performs an oxidation reaction treatment of sample water by adding an oxidizing agent such as potassium persulfate
Data Source
Figure 1
Figure 2
AI summary
A water quality analyzer includes: a sample reservoir (20) including a first storage container (22) configured to temporarily store sample water supplied from a sample water source, and a discharge mechanism (24) configured to discharge the sample water to an outside of the first storage container (22); at least one second storage container (32) provided as a container different from the first storage container (22) for storing the sample water; a measurement device (10) including a measurement cell (12) for accommodating sample water, the measurement device (12) being configured to obtain a measured value of a physical quantity related to the sample water accommodated in the measurement cell (12); a pump (2) configured to suction and discharge a liquid, wherein the pump (2) is fluidly connected to any one of the first storage container (22), the second storage container (32), and the measurement cell (12) selectively; a switching device (4;6) configured to switch fluidly connection of the pump (2) with the first storage container (22), the second storage container (22) and the measurement cell (12) ; a determination part (40) configured to determine whether the measured value is normal or abnormal by comparing the measured value with a preset threshold; a measurement controller (38) configured to transfer the sample water stored in the first storage container (22) to the measurement cell (12) using the pump (2) by controlling an operation of the pump (2) and an operation of the switching device (4;6); a first storage controller (42) configured to control an operation of the sample reservoir (20), wherein the first storage controller (42) is configured, after a portion of the sample water stored in the first storage container (22) is supplied to the measurement cell (12) by the pump (2), to make the sample water in the first storage container (22) to remain in the first storage container (22) until the determination part determines the measured value of the sample water which has supplied to the measurement cell (12), and wherein the first storage controller (42) is configured to discharge the sample water remaining in the first storage container (22) to the outside of the first storage container (22) in a case where the determination part (40) determines that the measured value obtained by the measurement device (10) is normal; and a second storage controller (44) configured to transfer the sample water remaining in the first storage container (22) to the second storage container (32) in a case where the determination part (40) determines that the measured value obtained by the measurement device (10) is abnormal.