Moisture Measuring Device for Gases Using Segmented Gas Channels
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Solution Overview
Problem
Conventional moisture measuring devices for gases require lengthy waiting periods for reliable measurements due to moisture accumulation in the gas channel, even when the gas supply system is disconnected, affecting the accuracy of dew point sensors.
Innovation Solution
A separate gas channel is used only for moisture measurement, connected to a hermetically sealed measuring cell with a downstream drying cell containing a drying agent, ensuring the measuring cell remains dry and independent of external moisture, allowing for immediate and precise moisture content detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional moisture measuring device uses a shared gas sampling input for multiple sensors, then the device structure is simplified, but moisture accumulates in the gas channel causing long waiting periods before reliable measurements can be obtained
Solution Approach 1:
The patent divides the gas sampling system into separate channels: one dedicated gas sampling input for moisture measurement and another for other gas constituents. This segmentation prevents moisture accumulation in the moisture measurement channel while maintaining simplified overall device structure through dedicated pathways.
Solution Approach 2:
The patent extracts the moisture measurement function from the shared gas sampling system by providing a separate dedicated gas sampling input and measurement channel. This isolation removes the harmful effect of moisture accumulation that occurs when multiple sensors share a common channel.
2Ease of operation
If the measuring cell is connected to the external environment, then gas sampling is simplified, but moisture from the environment contaminates the measuring cell affecting measurement accuracy
Solution Approach 1:
The patent introduces a drying cell as an intermediary component between the measuring cell and the external environment. This drying cell contains drying agents that remove moisture from incoming gas, allowing the measuring cell to remain protected from environmental moisture while still enabling gas sampling.
Solution Approach 2:
The patent applies preliminary drying action by placing drying agents in the drying cell upstream of the measuring cell. This预处理 removes moisture from the gas path before it can reach and contaminate the measuring cell, ensuring measurement accuracy from the start.
3Adaptability or versatility
If additional sensor systems share the gas sampling input, then the device can detect multiple gas constituents, but moisture accumulates in the shared channel reducing measurement reliability
Solution Approach 1:
The patent segments the gas sampling system into separate dedicated inputs: one for moisture measurement and another for other gas constituents. This allows the system to maintain versatility in detecting multiple gas types while ensuring reliable moisture measurements through isolated sampling pathways that prevent cross-contamination and moisture accumulation.
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 timely and reliable moisture content measurement independent of other gas constituents, with the drying cell maintaining the measuring cell free from moisture, reducing waiting times and improving measurement accuracy.
Implementation Method 1
a drying cell connected downstream of the measuring cell and containing a drying agent
Data Source
AI summary
A moisture measuring device for gases, in particular compressed gases, compressed air and the like, for moisture content detection in a gas supply system, includes a gas sampling input for the test gas which is connected to the gas supply system. A separate gas channel used only for the moisture measurement branches off from the gas sampling input. The separate gas channel is connected with a measuring cell in which a dew point sensor is arranged. A drying cell with a drying agent is connected downstream of the measuring cell. The drying cell is substantially hermetically sealed against the outside environment. Lastly, the output side of the drying cell is connected to an outlet channel leading to the outside environment. A gas supply system may have the form of a compressed gas system, a compressor station, a storage system and the like.