Radon Measurement Device Vacuum Isolation Rock Shearing
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Solution Overview
Problem
Existing methods for measuring radon release during rock shearing damage are inaccurate due to radon being mixed with nitrogen gas, complicating the measurement of radon concentration.
Innovation Solution
A device comprising a shear experiment instrument with a sealed chamber, acoustic emission sensors, a vacuum pump, and a radon collection system that collects radon in a vacuum environment, ensuring its purity for accurate measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If nitrogen gas is used as a carrier gas to drive out radon from the rock sample, then the radon can be transported to the measurement instrument, but the radon becomes mixed with nitrogen gas which affects the measurement accuracy of radon concentration
Solution Approach 1:
The patent extracts radon gas from the rock sample in a vacuum environment without introducing any carrier gas. The vacuum pump creates a vacuum in the sealed chamber, causing radon to be released and collected directly in the radon collection box, separating the radon collection process from any gas carrier interference.
Solution Approach 2:
The patent uses a vacuum environment (inert atmosphere) instead of nitrogen gas as the carrier. By maintaining a vacuum in the sealed chamber during radon release and collection, the system eliminates the harmful effect of gas mixture interference while still enabling radon transport to the measurement instrument.
2Measurement precision
If a vacuum environment is used to collect radon, then the purity of radon is ensured for accurate measurement, but the device complexity increases due to the need for vacuum pump and sealed chamber
Solution Approach 1:
The patent combines multiple functions into integrated components. The sealed chamber serves both as the rock sample containment vessel and the vacuum environment chamber. The radon collection box is directly connected to the sealed chamber, eliminating the need for separate transfer mechanisms and reducing overall system complexity despite using vacuum technology.
3Reliability
If acoustic emission sensors are added to monitor rock sample damage, then the correlation between rock rupture and radon release can be studied, but the device complexity and measurement difficulty increase
Solution Approach 1:
The patent designs the sealed chamber to serve multiple functions: containing the rock sample, maintaining vacuum environment, and housing the acoustic emission sensors. This multi-functional design allows simultaneous measurement of acoustic emission signals and radon concentration without requiring separate independent systems, reducing overall measurement 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 device ensures the accuracy of radon concentration measurement by isolating radon from other gases, providing a reliable method for assessing radon release during rock shearing damage.
Implementation Method 1
a vacuum pump, the vacuum pump being communicated with an interior of the sealed chamber
Implementation Method 2
an acoustic emission sensor and an acoustic emission processor, a plurality of the acoustic emission sensors being disposed on a surface of the rock sample at intervals
Data Source
AI summary
The disclosure provides a device and method for measuring radon release amount during rock shearing damage process. The method includes: the sealed chamber where the rock sample placed is vacuumed in the first place, and then the radon released during rock sample shearing damage process is all collected into the radon collection box, and then the concentration of the radon collected in the radon collection box is measured with a radon concentration measure instrument, so that the purity of the radon collected in the radon collection box can be ensured, and thus the accuracy of the concentration of radon measured by the radon concentration measure instrument can be ensured, and the device and method have good practicability.