Fluid Metering Device Calibration Valve Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fluid metering devices lack the ability to accurately calibrate fluid flow rates without fluid leakage, especially when dealing with small quantities, which can lead to inaccurate fluid measurement and dispensing.
Innovation Solution
Incorporation of a calibration valve assembly within the device, operable between a normal and calibration position, which directs fluid flow from the meter to either the outlet or a calibration channel, preventing leakage and allowing precise calibration without spilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional fluid metering devices are used, then fluid flow can be measured, but calibration cannot be performed accurately without fluid leakage
Solution Approach 1:
The outlet channel is divided into two separate paths: a calibration channel leading to a collection container and a normal outlet channel. This segmentation allows fluid to be directed exclusively to the collection container during calibration, preventing leakage to the environment while enabling accurate calibration measurements.
Solution Approach 2:
A calibration valve assembly is introduced as an intermediary component between the fluid meter and the outlet channels. This valve assembly acts as a mediator that directs fluid flow to either the calibration channel or the normal outlet channel, enabling controlled calibration without fluid loss to the environment.
2Measurement precision
If calibration is performed with small fluid quantities, then measurement accuracy improves, but fluid leakage becomes more significant
Solution Approach 1:
The outlet channel is divided into two separate paths: a calibration channel leading to a collection container and a normal outlet channel. This segmentation allows fluid to be directed exclusively to the collection container during calibration, preventing leakage to the environment while enabling accurate calibration measurements.
Solution Approach 2:
A calibration valve assembly is introduced as an intermediary component between the fluid meter and the outlet channels. This valve assembly acts as a mediator that directs fluid flow to either the calibration channel or the normal outlet channel, enabling controlled calibration without fluid loss to the environment.
3Measurement precision
If a calibration valve assembly is added, then calibration accuracy improves, but device complexity increases
Solution Approach 1:
The calibration valve assembly is integrated within the existing outlet channel structure, merging the calibration function with the normal outlet function. This integration allows the same component to serve dual purposes: directing fluid to the calibration channel during calibration and to the normal outlet during operation, thereby reducing overall device complexity.
Solution Approach 2:
The calibration valve assembly is designed to perform multiple functions: it directs fluid to the calibration channel for calibration operations and directs fluid to the normal outlet channel during normal operation. This multi-functionality reduces the need for separate components, thereby minimizing device complexity while maintaining calibration accuracy.
Data Source
AI summary
A device for metering fluids includes a block provided with a channel connecting a fluid inlet in fluid communication with a fluid outlet. The device also includes a filter assembly within the channel and a fluid meter within the channel at a position downstream from the filter assembly. The device further includes a check valve assembly within the channel at a position downstream from the fluid meter. In addition, the device includes a calibration valve assembly within a channel section of the channel between the fluid outlet and the fluid meter. The calibration valve assembly is operable to move between a first position allowing passage of fluid from the fluid meter towards the fluid outlet and a second position blocking the passage of fluid from the fluid meter towards the fluid outlet.