Fluid State Identification Device Bubble Removal
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Solution Overview
Problem
Existing fluid state identification devices face performance deterioration due to the presence of bubbles and forced flow in the measured fluid, which affects the accuracy of fluid state identification, particularly in areas where sensing occurs, and there is a need to reduce the device size effectively.
Innovation Solution
A fluid state identification device with a sensor part and a support part, surrounded by a cover with specific fluid flow routes and openings that prioritize fluidity in one direction over the other, incorporating a vertical passage with a porous filter and an inclined surface to minimize bubble influence and forced flow impact on the sensor area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a thermal sensor is used for fluid state identification, then the identification function is provided, but bubbles in the measured liquid cause deterioration in identification performance
Solution Approach 1:
The patent extracts and removes bubbles from the measured liquid before they can reach the sensor. A bubble removal chamber is provided where bubbles rise and are expelled through a discharge port, preventing them from interfering with the sensor measurement. This separation of bubbles from the liquid stream resolves the contradiction by eliminating the harmful factor while preserving the identification function.
Solution Approach 2:
The patent introduces a bubble removal chamber as an intermediary component between the liquid inlet and the sensor. This chamber acts as a mediator that allows bubbles to be separated and discharged before the liquid reaches the sensor, thereby protecting the measurement process from bubble interference while maintaining the overall identification capability.
2Measurement precision
If a flow control plate is added to improve identification performance, then forced flow influence is reduced, but device complexity increases
Solution Approach 1:
The patent merges the flow control function with the bubble removal chamber structure. The flow control plate is integrated into the bubble removal chamber, combining two functions (flow control and bubble removal) into a single structural element. This reduces device complexity while maintaining identification performance by eliminating forced flow effects and removing bubbles simultaneously.
3Measurement precision
If the sensor part is surrounded by a covering body with circulation holes, then vibration-induced forced flow is reduced, but device size increases
Solution Approach 1:
The patent makes the cover serve multiple functions: it protects the sensor, provides a structural framework for the bubble removal chamber, and incorporates flow control features. By making the cover multi-functional, the device achieves vibration resistance and improved identification performance without proportionally increasing device size, as the same structural elements perform multiple roles.
4Measurement precision
If multiple components are added to reduce bubble and forced flow influence, then identification performance is improved, but device size increases
Solution Approach 1:
The patent nests components within each other to minimize device size. The sensor is positioned within the bubble removal chamber, which is integrated into the cover structure. The flow control plate is embedded within the chamber, and the discharge port is formed as part of the chamber wall. This nested arrangement allows multiple functional components to coexist in a compact configuration, improving identification performance without proportionally increasing device size.
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
The design effectively reduces the impact of bubbles and forced flow on identification performance, enhancing accuracy and allowing for device downsizing by utilizing a cover structure that directs fluid flow and bubble expulsion, maintaining consistent sensor output even under vibration.
Implementation Method 1
a porous filter is located in a lower part of the vertical passage
Implementation Method 2
an identification sensor part including a thermal sensor
Data Source
Figure 1
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AI summary
Provided is a fluid state identification device comprising a fluid state identification unit 10 having a sensor part 1 and a support part 2, and a cover 20 surrounding the fluid state identification unit 10. The support part 2 has a front surface part 2F and a rear surface part 2R which are located opposite to each other. The sensor part 1 is located on the front surface part 2F side. The cover 20 has a lower opening 9L and an upper opening 9H. Inside the cover 20, a first fluid flow route running through a front area AF adjacent to the support front surface part and a second fluid flow route running through a rear area AR adjacent to the support rear surface part are formed and located so as to make the fluidity of the fluid in the second fluid flow route higher than the fluidity of the fluid in the first fluid flow route.