AddedThursday, April 30,2015 at 3:43 PM

Looking for a flame sensor / detector
Related to General, Molding & extrusion, Oil and gas, Chemicals & petrochem , Industrial machinery
I'm looking for an expert in machine safety or a flame sensor/detector to protect some machines from fire due to leaks of oil from hydraulic pumps.
It needs to be install in two areas: one is near an injection machine and the other one is near smelting area (high temp) 
Need the product and consulting (ex: best place to install, best technology to use, etc) we are in the quotation phase. 
Answer The Question
  • Answered Wednesday, May 6,2015 at 1:12 AM
    The key to using a IR camera like the FLIR is filtering out the non-events from the events. Normal equipment can run as hot as 200 degrees F, while a candle burns at something like 2600 degrees F. The sun appears as pretty much every temperature, but most predominantly at 6000 degrees or so, so you will need to worry about daylight getting into the field of view as well. Since Hydraulic oil burns at 300 to 600 degrees F, it looks very different than high bay lighting which is 3000 degrees F or more. All this to say is that yes, you can use a IR camera to do flame detection, but you have to filter out too high and too low signals before you have useable data. Fortunately, this is not hard to do, and moreover, it can be done using a physical filter if you wanted to instead of software (although being a programmer, I am in favor of a software approach personally) One thing does play in your favor is that shiny metal reflects heat energy almost perfectly, so while line of sight is always ideal, you can mount polished stainless panels to "see around" to the other side of your machine, potentially providing 360 degree coverage from one angle if done properly. Normal "bathroom mirror" glass doesn't reflect temperature at all since it is thermally opaque. The absolute key is to select the correct sensing range of the camera and then condition the software to report any hot regions that are 250F to 1000F that aren't adjacent to other hotter regions, and you should be good. One last thing - LED lighting is thermally cold, so if you do have lighting issues, you can switch to LED based lights and save some energy cost at the same time. Win-Win.
  • Answered Monday, May 4,2015 at 1:02 PM
    To elaborate further on my answer from yesterday. We can put a solution together for you. Here is a link to a number of case studies where FLIR IR cameras were used in Fire Detection or Prevention Applications http://www.flir.com/automation/display/?id=64057 . They can be set up with support hardware to interface with most any system, including digital alarm outputs for simple control and PC development kit libraries for more sophisticated controls and diagnostics. We would be happy to set up a discussion with one of our TUV certified functional safety engineers to come up with a good solution for you.
  • Answered Sunday, May 3,2015 at 10:09 PM
    There are a few IR sensor options that could be applied. I sensor could be used to monitor a sizeable area around the machine. I could help you with a solution utilizing Flir. Feel free to email me at ediehl@conceptsystemsinc.com or call 503.510.3415
  • Answered Sunday, May 3,2015 at 9:50 PM
    I would check into the Honeywell SS4 Flame Detector. It will sense both IR and UV flames and both hydrocarbon and non-hydrocarbon flames. If you need any more information on them let me know and I can send you spec sheets or get you some budgetary pricing. -Justin Clark