Interlocking issues between axial flow fans, combustible gas detectors, solenoid valves, and alarms
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In a natural gas kitchen, it is necessary for a combustible gas alarm detector to detect a signal, which in turn activates the axial flow fan; the alarm goes off, and the electromagnetic valve connected to the gas pipeline closes. Can this interconnection be achieved directly through the control panel of the kitchen’s axial flow fan, by using a secondary control circuit and relays? Is it necessary to use a combustible gas controller that needs to be connected back to the control room? Thank you all
The signal from a combustible gas alarm detector needs to be converted into a digital signal (contact signal), and then this can be achieved using components such as relays and contactors!
Some combustible gas detectors come equipped with a relay output as well as an audible and visual alarm. It should be possible to achieve it. As a side note, if you work in the field of instrumentation, make sure to distinguish between \"interlock\" and \"chain link\" – never get these terms mixed up.
Both are required and can be achieved; this is a requirement in fire protection, and it cannot be met through just one method.
It’s achievable; simply make use of the normally open contacts of the digital output relays for low and high alarm signals. The secondary control circuit diagram should be fine, right?
Combustible gas alarm detectors come with relay output
There are gas detectors available online that come with an automatic shut-off valve; all you need to do is turn on the fan and connect a wire to control its self-holding circuit
The alarm controller can be used to activate solenoid valves, sprinklers, and exhaust systems.
It can be achieved as long as there is an alarm digital output