Dispersing Device Shaft Tube Temperature Sensor Integration
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Solution Overview
Problem
Existing dispersing devices require additional measures or instruments for temperature determination, which complicates handling and increases costs, while also risking measurement inaccuracies due to heat generation from the rotating shaft and its bearings.
Innovation Solution
A temperature detector with electrical input and output lines is integrated into the shaft tube, thermally isolated and pivotable, allowing for accurate temperature measurement of the dispersing medium without interfering with the shaft tube, and featuring a spring deployment mechanism to avoid damage during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a temperature detector is added to determine the temperature of the media to be dispersed, then temperature measurement capability is improved, but device complexity and handling difficulty increase
Solution Approach 1:
The temperature detector is integrated into the shaft tube structure, merging the temperature measurement function with the existing shaft tube component. This eliminates the need for separate temperature measurement devices and reduces overall system complexity while maintaining accurate temperature monitoring capability.
Solution Approach 2:
The shaft tube is designed to serve multiple functions: it provides structural support for the dispersing rotor and simultaneously houses the temperature detector. This multi-functionality reduces the number of separate components needed, simplifying the device while enabling temperature measurement.
2Device complexity
If the temperature detector is placed close to the shaft tube, then device complexity is reduced, but measurement precision deteriorates due to heat from shaft rotation
Solution Approach 1:
The temperature detector is thermally isolated from the shaft tube by extracting it from the hot zone near the rotating shaft. The detector is positioned in a location that is structurally integrated with the shaft tube but thermally separated, allowing it to measure the temperature of the media being dispersed without being influenced by frictional heat from the shaft and bearings.
Solution Approach 2:
The shaft tube acts as an intermediary structure that provides mechanical support while thermal isolation mechanisms (such as air gaps or thermal barriers) prevent heat transfer from the rotating shaft to the temperature detector. This intermediary arrangement allows the detector to accurately measure media temperature despite the proximity to the heat-generating shaft.
3Measurement precision
If the temperature detector protrudes from the shaft tube, then measurement precision is improved, but ease of operation deteriorates due to potential damage
Solution Approach 1:
The temperature detector is designed with a pivotable connection to the shaft tube, allowing it to dynamically adjust its position. During normal operation, the detector protrudes to accurately measure media temperature. During insertion or when not in use, the detector can be pivoted back against the shaft tube surface, protecting it from damage while maintaining measurement capability when needed.
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 simple and accurate temperature determination of the dispersing medium, reducing the need for separate temperature measurement tools and protecting the detector from damage, while maintaining easy handling and operation of the dispersing device.
Implementation Method 1
it is here also possible for the temperature detector to be able to be deployed from the shaft tube by a spring force
Implementation Method 2
the temperature detector preferably measures the temperature of the surrounding medium to be dispersed
Data Source
AI summary
A dispersing device (1) has a dispersing tool (3), which has a shaft tube (2), and a drive (4). A dispersing rotor is provided at the free shaft tube (2) end (5) remote from the drive (4), the dispersing rotor being connected to the drive (4) via a shaft which can be coupled to the drive (4) and which is arranged within the shaft tube (2). In order to monitor the temperature of the medium to be dispersed, a temperature sensor (7) with a corresponding electric input and output line (8) is provided on the shaft tube (2), which is stationary relative to the dispersing rotor and the rotatable shaft, the input and output lines (8) connecting the temperature sensor (7) to the drive (4) and/or analyzing electronics and/or a control or regulating device.