Flame-proof Radiation Detector Wireless Enclosure
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Solution Overview
Problem
Radiation detectors used in hazardous environments with potentially explosive gases face challenges due to the risk of electrical shorting and explosions from wireless communication components, which do not meet safety standards for operation in such areas.
Innovation Solution
A radiation detector module housed within a flame-proof enclosure made of metal with a non-metallic end cap that is more transmissive to wireless signals, preventing sparks or explosions from contacting the atmosphere and allowing safe wireless communication, compliant with BS EN 60079-1:2007 standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication means are installed in a radiation detector for remote data transmission, then ease of operation and productivity are improved, but the risk of explosion increases due to electrical shorting in hazardous atmospheres
Solution Approach 1:
The device is divided into two functional sections: a flame-proof enclosure containing the radiation detector and wireless communication means, and an external receiver. The flame-proof enclosure isolates the hazardous electronic components from the explosive atmosphere while allowing wireless signal transmission through its walls, thus segmenting the system to simultaneously achieve ease of operation and explosion safety.
2Reliability
If traditional metal housing is used for flame-proof enclosure, then safety and strength are improved, but wireless signal transmission is blocked
Solution Approach 1:
The flame-proof enclosure is constructed from composite materials that combine the explosion-containing properties of metal with the wireless signal transmission properties of non-metallic materials. This composite structure allows the enclosure to maintain flame-proof safety while simultaneously permitting wireless communication signals to pass through, resolving the contradiction between safety and signal transmission.
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 safe wireless communication of radiation data in hazardous environments by preventing explosions from occurring outside the enclosure, meeting safety standards for use in zones with explosive gas atmospheres, thus allowing reliable monitoring and measurement of gamma radiation in chemical manufacturing and other hazardous locations.
Implementation Method 1
the end cap comprises a non-metallic material which is relatively more transmissive to the wireless transmission than is steel
Implementation Method 2
any spark or explosion within the enclosure is prevented from contacting the surrounding atmosphere
Data Source
Figure 1~3
AI summary
The invention concerns a radiation detector module (10) comprising a radiation detector (20,22), power source (24) and wireless communication means (28,30) all housed within a flame-proof enclosure (12,14). The enclosure has a portion through which wireless transmissions can pass. The radiation detector module may be suitable for use in a hazardous area containing a potentially explosive gas mixture.