Ignition-source detecting system and associated methods
AssigneeB&S Safety Systems, Inc.
InventorsPovl Hansen, Geof Brazier
Life of this patent
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Abstract
A system of ignition-source detection and prevention in containers and open materials handling systems. The system includes an electronic processor located in close proximity to a detector, a spray nozzle, and a valve. The electronic processor may be configured to be placed in a dust-hazard environment. The detector may be configured to detect radiation and/or a flame. Associate methods are also disclosed, including: a method of responding to an ignition source, a method of installing an ignition-source detection system, and a method of testing an ignition-source detection system.
Claims70
An ignition-source detecting system comprising:
- an electronic processor configured to control the ignition-source detecting system;
- and
- at least one detector configured to detect radiation in a container, the at least one detector configured to output a modulated voltage having a high voltage and a low voltage.
A method of installing an ignition-source detecting system, comprising:
- locating an electronic processor in close proximity to a container;
- mounting a detector on the container, the detector being configured to detect radiation in a container, the detector further configured to output a modulated signal having a high voltage and a low voltage;
- and
- connecting the electronic processor and detector via dedicated wires.
An ignition-source detecting system, comprising:
- an electronic processor for controlling the ignition-source detecting system and
- a detector for detecting radiation, wherein
- the detector is configured to output a generally square wave signal having a high voltage and a low voltage, the detector further configured to modify the generally square wave signal when radiation is detected, and
- the electronic processor and detector are designed for positioning in an ATEX Zone 21 or NEC Class 2, Division 1 location.
A method of responding to an ignition source, comprising:
- sending a modulated voltage to an electronic processor, the modulated voltage having a high voltage and a low voltage;
- detecting a source of radiation in a container;
- modifying the duration of either the high voltage or the low voltage in response to a detected source of radiation;
- sending a signal from the electronic processor to a valve in response to the modified duration;
- and
- actuating the valve to release fluid through a spray nozzle.
An ignition-source detecting system comprising:
- an electronic processor configured to control the ignition-source detecting system;
- and
- at least one detector configured to detect radiation in a container and output a modulated signal to the electronic processor;
- wherein,
- the modulated signal has a high value and a low value.
Dependencies are inferred from the claim text.