Cryogenic Trycock Pipe Temperature Sensor Placement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cryogenic systems face challenges in reliably and safely measuring the temperature of trycock pipes during the filling process, which is crucial for detecting the presence and level of cryogenic liquid.
Innovation Solution
The arrangement includes a cryogenic tank connected to a trycock pipe with a temperature sensor positioned outside the tube at its closed second end, allowing for accurate temperature measurement and control of the filling process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a temperature sensor is positioned inside the trycock pipe tube, then temperature measurement accuracy is improved, but the device complexity and risk of contamination increase
Solution Approach 1:
The patent uses the closed end wall of the tube as an intermediary surface for temperature measurement. Instead of placing the sensor inside the tube where it would contact the cryogenic liquid and require complex sealing, the sensor measures the temperature of the external surface of the closed end wall, which thermally conducts from the internal temperature. This intermediary approach maintains measurement accuracy while avoiding the complexities of internal sensor installation.
2Ease of manufacture
If the trycock pipe is arranged horizontally, then installation simplicity is improved, but liquid flow into the tube due to gravity is reduced
Solution Approach 1:
The patent modifies the orientation parameter of the trycock pipe from horizontal to a downward tilt. This parameter change enables gravity to assist liquid flow into the tube during filling operations, improving the speed and reliability of liquid entry while maintaining reasonable installation simplicity. The tilt angle is optimized to balance flow performance with installation ease.
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
This solution enables reliable detection of the cryogenic liquid level by measuring temperature changes, allowing for precise control of the filling process and preventing overfilling.
Implementation Method 1
a sensor (4) measuring the temperature of the tube (10)
Implementation Method 2
the trycock pipe can be arranged horizontally or preferably somewhat tilted downwards, i.e. the second end of the tube is arranged lower than the first end of the tube, such that the liquid will flow from the tank into the tube due to gravity
Data Source
AI summary
An arrangement for a cryogenic system includes a cryogenic tank for storing a cryogenic liquid and a trycock pipe, which trycock pipe has a first end mechanically connected to the cryogenic tank. The trycock pipe includes a tube with a first end fluidly connected to the cryogenic tank for receiving cryogenic liquid from the cryogenic tank. The arrangement further includes a sensor measuring the temperature of the tube. The tube has a second free end opposite to the first end of the tube, which second free end is closed, and the temperature sensor is arranged outside the tube measuring the temperature at the second free end of the tube.