Hydrogen Peroxide Reservoir Float for Vibration Damping

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Solution Overview

Problem

Existing fluid level sensors face challenges in accurately measuring slow fluid consumption rates in environments prone to vibrations and bubbling, such as hydrogen peroxide vaporizers, due to interference from gas emissions and turbulence.

Innovation Solution

A reservoir assembly with a float member and fluid column level sensor, where the float member is partially submerged and designed with passageways and sidewall guide surfaces to absorb vibrations and allow bubble passage, coupled with an ultrasonic sensor to determine the float's position and measure fluid levels accurately.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional fluid level sensors are used in hydrogen peroxide vaporizers, then fluid level can be detected, but measurement accuracy deteriorates due to vibrations and bubbling from the fluid

Engineering Contradiction:
Improvefluid level measurement accuracyVSAvoidvibrations and bubbling interference
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a float member as an intermediary between the fluid and the sensor. The float absorbs vibrations and turbulence from bubbling hydrogen peroxide, providing a stable mechanical interface for the sensor to measure fluid level without direct exposure to harmful fluid dynamics

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces direct mechanical contact sensors with an ultrasonic sensor that measures fluid level by detecting the position of the float through acoustic waves. This non-contact measurement approach eliminates the harmful effects of vibrations and bubbling on the sensing mechanism

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Stability of the object's composition

If the float member is completely submerged to improve stability, then vibration absorption improves, but bubble passage is blocked

Engineering Contradiction:
Improvefloat stabilityVSAvoidbubble trapping
Core Design Contradiction:
Stability of the object's compositionVSObject-generated harmful factors

Solution Approach 1:

The patent applies local quality by making only the lower portion of the float member submerged in the fluid while keeping the upper portion exposed. This localized submersion provides sufficient vibration absorption stability while maintaining bubble passage through the unobstructed upper region

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The float member is segmented into submerged and non-submerged portions, each serving different functions. The submerged lower portion absorbs vibrations and provides stability, while the exposed upper portion allows bubbles to pass through freely

Inventive Principle:
Principle #1Segmentation

3Productivity

If the float member is made smaller to reduce interference with fluid flow, then bubble passage improves, but vibration absorption capability deteriorates

Engineering Contradiction:
Improvefluid flow efficiencyVSAvoidvibration damping
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

The patent optimizes the float member's dimensional proportions, creating an elongated structure with specific length-to-diameter ratios. This dimensional configuration provides sufficient vibration absorption surface area while maintaining compact cross-sectional dimensions that minimize interference with fluid and bubble flow

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 solution provides stable and accurate fluid level measurements despite vibrations and bubbling, ensuring proper system operation and efficient fluid management in hydrogen peroxide vaporizers.

Implementation Method 1

the float member is configured to absorb the vibrations and turbulence caused by the fluid movement and degradation

Methodology Applied
Scientific EffectVibration absorption: Damping

Implementation Method 2

The float member having a density such that the float member is at least partially submerged hydrogen peroxide when hydrogen peroxide is placed within the fluid chamber

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Implementation Method 3

The fluid column level sensor is positioned at a top end of the fluid chamber. The sensor is configured to determine the position of the float member by interfacing with the target region of the float member

Methodology Applied
Scientific EffectUltrasonic measurement: Ultrasound

Data Source

PatentEP2962076B1Reservoir assembly for storing hydrogen peroxide for use with a hydrogen peroxide vaporizer in association with a filler
Publication Date: 2020.01.22 SCHOLLE IPN CORP
  • EP2962076B1 patent drawingFigure 1
  • EP2962076B1 patent drawingFigure 2~3
  • EP2962076B1 patent drawingFigure 4~5

AI summary

The disclosure is directed to reservoir assembly for storing hydrogen peroxide for use with a hydrogen peroxide vaporizer in association with a filler. Which includes a fluid chamber, a float member and a column level sensor. The float member is positioned within the fluid chamber. The fluid column level sensor is positioned at or near the upper end of the fluid chamber. The float member is configured to absorb the vibrations, turbulence and bubbling caused by the fluid movement and degradation. To that end, the float member is configured so as to be partially submerged. In addition, the float member includes an outer surface that has both passageways and sidewall guide surfaces which facilitate proper tracking within the fluid chamber, while also allowing for the directing of fluid movements around the float.