Steam Humidifier Boiling Chamber With Integrated Scale Collection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Steam humidifiers face performance degradation due to scale buildup from impurities in water, leading to reduced heat transfer and clogged passages, as minerals become insoluble at high temperatures and accumulate over time.
Innovation Solution
Incorporating scale collection features, such as increased surface areas within the water boiling chamber and field-replaceable scale collectors, to capture and manage scale accumulation, allowing for easy replacement and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If water is heated in a steam humidifier, then steam is produced for humidification, but scale builds up on heating surfaces degrading performance
Solution Approach 1:
The patent extracts the harmful scale accumulation process from the main heating function by providing dedicated scale collection surfaces that are separate from the primary heat transfer surfaces. Scale is taken out and collected on these dedicated surfaces, preventing it from building up on critical heating elements and maintaining reliable steam production.
Solution Approach 2:
The scale collection surfaces act as an intermediary between the water and the heating elements. Instead of scale directly accumulating on the heating surfaces, it is redirected to these intermediate collection surfaces, protecting the critical heating components from scale degradation.
2Reliability
If scale collection surfaces are added to the water boiling chamber, then scale buildup is mitigated, but device complexity increases
Solution Approach 1:
The scale collection surfaces are merged with the existing chamber structure rather than being separate components. The surfaces are integrated into the water boiling chamber walls, combining the scale collection function with the existing structural elements and avoiding additional complex mechanisms.
Solution Approach 2:
The chamber surfaces serve multiple functions: they act as both structural boundaries of the water boiling chamber and as scale collection surfaces. This multi-functionality reduces the need for additional dedicated components, simplifying the overall device structure.
3Reliability
If scale collection surfaces with large area are provided, then scale is effectively captured, but manufacturing complexity increases
Solution Approach 1:
Instead of requiring uniformly complex structures throughout the entire chamber, the patent applies scale collection features locally at specific positions where scale is most likely to accumulate. This localized approach effectively captures scale while keeping the overall manufacturing process simple.
Solution Approach 2:
The patent employs curved or rounded surface geometries for scale collection areas. These curved surfaces naturally facilitate scale accumulation and are easier to manufacture using standard forming processes compared to sharp corners or complex angular features, reducing manufacturing complexity.
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 effectively mitigates scale buildup, maintaining humidifier performance by providing ample scale collection surfaces and facilitating component replacement, thus preventing performance degradation and ensuring efficient operation.
Implementation Method 1
supplying energy to water in the enclosure sufficient to boil at least some of the water in the enclosure
Implementation Method 2
supplying energy to water in the enclosure sufficient to boil at least some of the water in the enclosure
Data Source
AI summary
A water boiling chamber for a steam humidifier may include an enclosure having a water volume and scale collection surfaces that are exposed to water in the enclosure. The scale collection surfaces may have a scale collection surface area that is at least two times greater than a reference surface area, where the reference surface area is defined as the surface area of a sphere having a volume equal to the water volume of the enclosure. Scale collection surfaces may be part of the enclosure and project into an interior of the enclosure. Alternatively, or in addition, one or more scale collectors may be disposed within the enclosure. Methods for capturing scale in a steam humidifier are also described.